LWTools: lwlink/link.c annotate

annotate lwlink/link.c @ 315:fcd103148aa6

Add ability to load sections downward instead of upward Add "section ... high ..." statement to link scripts to allow a section to be placed based on its end address instead of its start address. All sections listed after such a statement are treated as growing downward until the next section statement specifying a load address.

author	William Astle <lost@l-w.ca>
date	Wed, 27 Nov 2013 16:01:26 -0700
parents	346966cffeef
children	6821f4855702

rev	line source
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	1 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	2 link.c
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	3 Copyright © 2009 William Astle
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	4
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	5 This file is part of LWLINK.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	6
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	7 LWLINK is free software: you can redistribute it and/or modify it under the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	8 terms of the GNU General Public License as published by the Free Software
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	9 Foundation, either version 3 of the License, or (at your option) any later
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	10 version.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	11
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	12 This program is distributed in the hope that it will be useful, but WITHOUT
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	15 more details.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	16
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	17 You should have received a copy of the GNU General Public License along with
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	18 this program. If not, see <http://www.gnu.org/licenses/>.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	19
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	20
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	21 Resolve section and symbol addresses; handle incomplete references
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	22 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	23
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	24 #include <stdio.h>
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	25 #include <stdlib.h>
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	26 #include <string.h>
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	27
8 fdc11ef4115b Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c lost@l-w.ca parents: 2 diff changeset	28 #include <lw_alloc.h>
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	29 #include <lw_string.h>
8 fdc11ef4115b Switched lwlink to lw_cmdline from argp and also brought in lw_alloc and lw_string to replace util.c lost@l-w.ca parents: 2 diff changeset	30
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	31 #include "expr.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	32 #include "lwlink.h"
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	33
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	34 void check_os9(void);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	35
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	36 struct section_list *sectlist = NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	37 int nsects = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	38 static int nforced = 0;
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	39 static int resolveonly = 0;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	40
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	41 int quietsym = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	42
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	43 symlist_t *symlist = NULL;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	44
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	45 sectopt_t *section_opts = NULL;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	46
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	47 void check_section_name(char name, int base, fileinfo_t *fn, int down)
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	48 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	49 int sn;
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	50 // fprintf(stderr, "Considering sections in %s (%d) for %s\n", fn -> filename, fn -> forced, name);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	51 if (fn -> forced == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	52 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	53
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	54 for (sn = 0; sn < fn -> nsections; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	55 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	56 // fprintf(stderr, " Considering section %s\n", fn -> sections[sn].name);
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	57 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	58 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	59 if (fn -> sections[sn].flags & SECTION_CONST)
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	60 continue;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	61 // we have a match
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	62 // fprintf(stderr, " Found\n");
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	63 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	64 sectlist[nsects].ptr = &(fn -> sections[sn]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	65
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	66 fn -> sections[sn].processed = 1;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	67 if (down)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	68 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	69 *base -= fn -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	70 fn -> sections[sn].loadaddress = *base;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	71 }
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	72 else
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	73 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	74 fn -> sections[sn].loadaddress = *base;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	75 *base += fn -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	76 }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	77 nsects++;
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	78 // fprintf(stderr, "Adding section %s (%s)\n",fn -> sections[sn].name, fn -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	79 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	80 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	81 for (sn = 0; sn < fn -> nsubs; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	82 {
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	83 check_section_name(name, base, fn -> subs[sn], down);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	84 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	85 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	86
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	87 void add_matching_sections(char name, int yesflags, int noflags, int base, int down);
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	88 void check_section_flags(int yesflags, int noflags, int base, fileinfo_t fn, int down)
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	89 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	90 int sn;
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	91 sectopt_t *so;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	92
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	93 // fprintf(stderr, "Considering sections in %s (%d) for %x/%x\n", fn -> filename, fn -> forced, yesflags, noflags);
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	94
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	95 if (fn -> forced == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	96 return;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	97
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	98 for (sn = 0; sn < fn -> nsections; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	99 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	100 // ignore "constant" sections - they're added during the file resolve stage
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	101 if (fn -> sections[sn].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	102 continue;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	103 // ignore if the noflags tell us to
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	104 if (noflags && (fn -> sections[sn].flags & noflags))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	105 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	106 // ignore unless the yesflags tell us not to
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	107 if (yesflags && ((fn -> sections[sn].flags & yesflags) == 0))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	108 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	109 // ignore it if already processed
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	110 if (fn -> sections[sn].processed)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	111 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	112
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	113 // we have a match - now collect all sections of the same name!
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	114 // fprintf(stderr, " Found\n");
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	115 add_matching_sections((char *)(fn -> sections[sn].name), 0, 0, base, down);
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	116
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	117 /* handle "after padding" */
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	118 for (so = section_opts; so; so = so -> next)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	119 if (!strcmp(so -> name, (char *)(fn -> sections[sn].name)))
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	120 break;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	121 if (so)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	122 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	123 if (so -> aftersize)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	124 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	125 sectlist[nsects - 1].ptr -> afterbytes = so -> afterbytes;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	126 sectlist[nsects - 1].ptr -> aftersize = so -> aftersize;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	127 if (down)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	128 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	129 sectlist[nsects - 1].ptr -> loadaddress -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	130 *base -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	131 }
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	132 else
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	133 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	134 *base += so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	135 }
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	136 }
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	137 }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	138
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	139 // and then continue looking for sections
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	140 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	141 for (sn = 0; sn < fn -> nsubs; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	142 {
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	143 check_section_flags(yesflags, noflags, base, fn -> subs[sn], down);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	144 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	145 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	146
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	147
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	148
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	149 void add_matching_sections(char name, int yesflags, int noflags, int base, int down)
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	150 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	151 int fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	152 if (name)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	153 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	154 // named section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	155 // look for all instances of a section by the specified name
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	156 // and resolve base addresses and add to the list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	157 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	158 {
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	159 check_section_name(name, base, inputfiles[fn], down);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	160 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	161 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	162 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	163 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	164 // wildcard section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	165 // named section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	166 // look for all instances of a section by the specified name
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	167 // and resolve base addresses and add to the list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	168 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	169 {
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	170 check_section_flags(yesflags, noflags, base, inputfiles[fn], down);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	171 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	172 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	173 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	174
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	175 // work out section load order and resolve base addresses for each section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	176 // make a list of sections to load in order
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	177 void resolve_sections(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	178 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	179 int laddr = 0;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	180 int growdown = 0;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	181 int ln, sn, fn;
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	182 sectopt_t *so;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	183
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	184 for (ln = 0; ln < linkscript.nlines; ln++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	185 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	186 if (linkscript.lines[ln].loadat >= 0)
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	187 {
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	188 laddr = linkscript.lines[ln].loadat;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	189 growdown = linkscript.lines[ln].growsdown;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	190 }
238 91f91557dc9e Removed extraneous debug message. William Astle <lost@l-w.ca> parents: 236 diff changeset	191 //fprintf(stderr, "Adding section %s\n", linkscript.lines[ln].sectname);
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	192 add_matching_sections(linkscript.lines[ln].sectname, linkscript.lines[ln].yesflags, linkscript.lines[ln].noflags, &laddr, growdown);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	193
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	194 if (linkscript.lines[ln].sectname)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	195 {
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	196 char *sname = linkscript.lines[ln].sectname;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	197 /* handle "after padding" */
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	198 for (so = section_opts; so; so = so -> next)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	199 if (!strcmp(so -> name, sname))
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	200 break;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	201 if (so)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	202 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	203 if (so -> aftersize)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	204 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	205 sectlist[nsects - 1].ptr -> afterbytes = so -> afterbytes;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	206 sectlist[nsects - 1].ptr -> aftersize = so -> aftersize;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	207 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	208 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	209 sectlist[nsects-1].ptr -> loadaddress -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	210 laddr -= so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	211 }
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	212 else
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	213 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	214 laddr += so -> aftersize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	215 }
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	216 }
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	217 }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	218 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	219 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	220 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	221 // wildcard section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	222 // look for all sections not yet processed that match flags
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	223
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	224 int f = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	225 int fn0, sn0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	226 char *sname;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	227
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	228 // named section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	229 // look for all instances of a section by the specified name
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	230 // and resolve base addresses and add to the list
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	231 for (fn0 = 0; fn0 < ninputfiles; fn0++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	232 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	233 for (sn0 = 0; sn0 < inputfiles[fn0] -> nsections; sn0++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	234 {
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	235 // ignore "constant" sections
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	236 if (inputfiles[fn0] -> sections[sn0].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	237 continue;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	238 // ignore if the "no flags" bit says to
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	239 if (linkscript.lines[ln].noflags && (inputfiles[fn0] -> sections[sn0].flags & linkscript.lines[ln].noflags))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	240 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	241 // ignore unless the yes flags tell us not to
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	242 if (linkscript.lines[ln].yesflags && ((inputfiles[fn0] -> sections[sn0].flags & linkscript.lines[ln].yesflags) == 0))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	243 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	244 if (inputfiles[fn0] -> sections[sn0].processed == 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	245 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	246 sname = (char *)(inputfiles[fn0] -> sections[sn0].name);
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	247 fprintf(stderr, "Adding sectoin %s\n", sname);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	248 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	249 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	250 for (sn = 0; sn < inputfiles[fn] -> nsections; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	251 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	252 if (!strcmp(sname, (char *)(inputfiles[fn] -> sections[sn].name)))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	253 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	254 // we have a match
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	255 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	256 sectlist[nsects].ptr = &(inputfiles[fn] -> sections[sn]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	257
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	258 inputfiles[fn] -> sections[sn].processed = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	259 if (!f && linkscript.lines[ln].loadat >= 0)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	260 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	261 f = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	262 sectlist[nsects].forceaddr = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	263 laddr = linkscript.lines[ln].loadat;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	264 growdown = linkscript.lines[ln].growsdown;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	265 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	266 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	267 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	268 sectlist[nsects].forceaddr = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	269 }
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	270 if (growdown)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	271 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	272 laddr -= inputfiles[fn] -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	273 inputfiles[fn] -> sections[sn].loadaddress = laddr;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	274 }
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	275 else
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	276 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	277 inputfiles[fn] -> sections[sn].loadaddress = laddr;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	278 laddr += inputfiles[fn] -> sections[sn].codesize;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	279 }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	280 nsects++;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	281 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	282 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	283 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	284 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	285 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	286 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	287 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	288 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	289
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	290 // theoretically, all the base addresses are set now
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	291 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	292
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	293 /* run through all sections and generate any synthetic symbols */
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	294 void generate_symbols(void)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	295 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	296 int sn;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	297 char *lastsect = NULL;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	298 char sym[256];
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	299 int len;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	300 symlist_t *se;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	301 int lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	302
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	303 for (sn = 0; sn < nsects; sn++)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	304 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	305 if (!lastsect \|\| strcmp(lastsect, (char *)(sectlist[sn].ptr -> name)))
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	306 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	307 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	308 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	309 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	310 se = lw_alloc(sizeof(symlist_t));
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	311 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	312 snprintf(sym, 255, linkscript.lensympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	313 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	314 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	315 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	316 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	317 if (lastsect && linkscript.basesympat)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	318 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	319 se = lw_alloc(sizeof(symlist_t));
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	320 se -> val = lowaddr;
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	321 snprintf(sym, 255, linkscript.basesympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	322 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	323 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	324 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	325 }
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	326 lastsect = (char *)(sectlist[sn].ptr -> name);
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	327 len = 0;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	328 lowaddr = sectlist[sn].ptr -> loadaddress;
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	329 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	330 len += sectlist[sn].ptr -> codesize;
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	331 if (sectlist[sn].ptr -> loadaddress < lowaddr)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	332 lowaddr = sectlist[sn].ptr -> loadaddress;
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	333 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	334 if (lastsect && linkscript.lensympat)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	335 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	336 /* handle length symbol */
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	337 se = lw_alloc(sizeof(symlist_t));
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	338 se -> val = len;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	339 snprintf(sym, 255, linkscript.lensympat, lastsect);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	340 se -> sym = lw_strdup(sym);
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	341 se -> next = symlist;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	342 symlist = se;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	343 }
315 fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	344 if (lastsect && linkscript.basesympat)
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	345 {
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	346 se = lw_alloc(sizeof(symlist_t));
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	347 se -> val = lowaddr;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	348 snprintf(sym, 255, linkscript.basesympat, lastsect);
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	349 se -> sym = lw_strdup(sym);
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	350 se -> next = symlist;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	351 symlist = se;
fcd103148aa6 Add ability to load sections downward instead of upward William Astle <lost@l-w.ca> parents: 264 diff changeset	352 }
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	353 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	354
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	355 lw_expr_stack_t find_external_sym_recurse(char sym, fileinfo_t *fn)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	356 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	357 int sn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	358 lw_expr_stack_t *r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	359 lw_expr_term_t *term;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	360 symtab_t *se;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	361 int val;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	362
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	363 for (sn = 0; sn < fn -> nsections; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	364 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	365 for (se = fn -> sections[sn].exportedsyms; se; se = se -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	366 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	367 // fprintf(stderr, " Considering %s\n", se -> sym);
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	368 if (!strcmp(sym, (char *)(se -> sym)))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	369 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	370 // fprintf(stderr, " Match (%d)\n", fn -> sections[sn].processed);
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	371 // if the section was not previously processed and is CONSTANT, force it in
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	372 // otherwise error out if it is not being processed
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	373 if (fn -> sections[sn].processed == 0)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	374 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	375 if (fn -> sections[sn].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	376 {
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	377 // add to section list
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	378 sectlist = lw_realloc(sectlist, sizeof(struct section_list) * (nsects + 1));
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	379 sectlist[nsects].ptr = &(fn -> sections[sn]);
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	380 fn -> sections[sn].processed = 1;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	381 fn -> sections[sn].loadaddress = 0;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	382 nsects++;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	383 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	384 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	385 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	386 if (resolveonly == 0)
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	387 {
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	388 fprintf(stderr, "Symbol %s found in section %s (%s) which is not going to be included\n", sym, fn -> sections[sn].name, fn -> filename);
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	389 continue;
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	390 }
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	391 }
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	392 }
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	393 // fprintf(stderr, "Found symbol %s in %s\n", sym, fn -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	394 if (!(fn -> forced))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	395 {
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	396 // fprintf(stderr, " Forced\n");
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	397 fn -> forced = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	398 nforced = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	399 }
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	400 if (fn -> sections[sn].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	401 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	402 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	403 val = se -> offset + fn -> sections[sn].loadaddress;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	404 r = lw_expr_stack_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	405 term = lw_expr_term_create_int(val & 0xffff);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	406 lw_expr_stack_push(r, term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	407 lw_expr_term_free(term);
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	408
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	409 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	410 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	411 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	412 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	413
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	414 for (sn = 0; sn < fn -> nsubs; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	415 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	416 // fprintf(stderr, "Looking in %s\n", fn -> subs[sn] -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	417 r = find_external_sym_recurse(sym, fn -> subs[sn]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	418 if (r)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	419 {
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	420 // fprintf(stderr, "Found symbol %s in %s\n", sym, fn -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	421 if (!(fn -> forced))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	422 {
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	423 // fprintf(stderr, " Forced\n");
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	424 nforced = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	425 fn -> forced = 1;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	426 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	427 return r;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	428 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	429 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	430 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	431 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	432
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	433 // resolve all incomplete references now
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	434 // anything that is unresolvable at this stage will throw an error
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	435 // because we know the load address of every section now
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	436 lw_expr_stack_t resolve_sym(char sym, int symtype, void *state)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	437 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	438 section_t *sect = state;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	439 lw_expr_term_t *term;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	440 int val = 0, i, fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	441 lw_expr_stack_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	442 symtab_t *se;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	443 fileinfo_t *fp;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	444
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	445 // fprintf(stderr, "Looking up %s\n", sym);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	446
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	447 if (symtype == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	448 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	449 // local symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	450 if (!sym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	451 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	452 val = sect -> loadaddress;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	453 goto out;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	454 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	455
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	456 // start with this section
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	457 for (se = sect -> localsyms; se; se = se -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	458 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	459 if (!strcmp((char *)(se -> sym), sym))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	460 {
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	461 if (sect -> flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	462 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	463 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	464 val = se -> offset + sect -> loadaddress;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	465 goto out;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	466 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	467 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	468 // not in this section - check all sections in this file
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	469 for (i = 0; i < sect -> file -> nsections; i++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	470 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	471 for (se = sect -> file -> sections[i].localsyms; se; se = se -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	472 {
2 7317fbe024af Clean up insane number of compiler warnings under -Wall lost@l-w.ca parents: 0 diff changeset	473 if (!strcmp((char *)(se -> sym), sym))
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	474 {
156 fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	475 if (sect -> file -> sections[i].flags & SECTION_CONST)
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	476 val = se -> offset;
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	477 else
fc8386b13399 Added 'constant' sections to object file handling for lwasm and lwlink lost@l-w.ca parents: 155 diff changeset	478 val = se -> offset + sect -> file -> sections[i].loadaddress;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	479 goto out;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	480 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	481 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	482 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	483 // not found
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	484 if (!quietsym)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	485 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	486 symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	487 fprintf(stderr, "Local symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> name);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	488 }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	489 goto outerr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	490 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	491 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	492 {
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	493 symlist_t *se;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	494
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	495 // external symbol
234 d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	496 // first look up synthesized symbols
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	497 for (se = symlist; se; se = se -> next)
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	498 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	499 if (!strcmp(se -> sym, sym))
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	500 {
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	501 val = se -> val;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	502 goto out;
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	503 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	504 }
d389adbcc4ab Added section base and length symbols to lwlink William Astle <lost@l-w.ca> parents: 157 diff changeset	505
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	506 // read all files in order until found (or not found)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	507 if (sect)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	508 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	509 for (fp = sect -> file; fp; fp = fp -> parent)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	510 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	511 // fprintf(stderr, "Looking in %s\n", fp -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	512 s = find_external_sym_recurse(sym, fp);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	513 if (s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	514 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	515 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	516 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	517
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	518 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	519 {
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	520 // fprintf(stderr, "Looking in %s\n", inputfiles[fn] -> filename);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	521 s = find_external_sym_recurse(sym, inputfiles[fn]);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	522 if (s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	523 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	524 }
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	525 if (!quietsym)
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	526 {
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	527 if (sect)
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	528 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	529 fprintf(stderr, "External symbol %s not found in %s:%s\n", sanitize_symbol(sym), sect -> file -> filename, sect -> name);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	530 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	531 else
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	532 {
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	533 fprintf(stderr, "External symbol %s not found\n", sym);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	534 }
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	535 symerr = 1;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	536 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	537 goto outerr;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	538 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	539 fprintf(stderr, "Shouldn't ever get here!!!\n");
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	540 exit(88);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	541 out:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	542 s = lw_expr_stack_create();
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	543 term = lw_expr_term_create_int(val & 0xffff);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	544 lw_expr_stack_push(s, term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	545 lw_expr_term_free(term);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	546 return s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	547 outerr:
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	548 return NULL;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	549 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	550
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	551 void resolve_references(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	552 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	553 int sn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	554 reloc_t *rl;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	555 int rval;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	556
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	557 quietsym = 0;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	558
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	559 // resolve entry point if required
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	560 // this must resolve to an exported symbol and will resolve to the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	561 // first instance of that symbol
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	562 if (linkscript.execsym)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	563 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	564 lw_expr_stack_t *s;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	565
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	566 s = resolve_sym(linkscript.execsym, 0, NULL);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	567 if (!s)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	568 {
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	569 fprintf(stderr, "Cannot resolve exec address '%s'\n", linkscript.execsym);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	570 symerr = 1;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	571 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	572 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	573 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	574 linkscript.execaddr = lw_expr_get_value(s);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	575 lw_expr_stack_free(s);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	576 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	577 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	578
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	579 for (sn = 0; sn < nsects; sn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	580 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	581 for (rl = sectlist[sn].ptr -> incompletes; rl; rl = rl -> next)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	582 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	583 // do a "simplify" on the expression
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	584 rval = lw_expr_reval(rl -> expr, resolve_sym, sectlist[sn].ptr);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	585
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	586 // is it constant? error out if not
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	587 if (rval != 0 \|\| !lw_expr_is_constant(rl -> expr))
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	588 {
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	589 fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", sectlist[sn].ptr -> file -> filename, sectlist[sn].ptr -> name, rl -> offset);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	590 symerr = 1;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	591 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	592 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	593 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	594 // put the value into the relocation address
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	595 rval = lw_expr_get_value(rl -> expr);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	596 if (rl -> flags & RELOC_8BIT)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	597 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	598 sectlist[sn].ptr -> code[rl -> offset] = rval & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	599 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	600 else
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	601 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	602 sectlist[sn].ptr -> code[rl -> offset] = (rval >> 8) & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	603 sectlist[sn].ptr -> code[rl -> offset + 1] = rval & 0xff;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	604 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	605 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	606 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	607 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	608
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	609 if (symerr)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	610 exit(1);
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	611
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	612 if (outformat == OUTPUT_OS9)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	613 check_os9();
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	614 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	615
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	616 void resolve_files_aux(fileinfo_t *fn)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	617 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	618 int sn;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	619 reloc_t *rl;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	620 lw_expr_stack_t *te;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	621
264 346966cffeef Clean up various warnings when building under -Wall William Astle <lost@l-w.ca> parents: 263 diff changeset	622 // int rval;
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	623
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	624
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	625 if (fn -> forced == 0)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	626 return;
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	627
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	628 for (sn = 0; sn < fn -> nsections; sn++)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	629 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	630 for (rl = fn -> sections[sn].incompletes; rl; rl = rl -> next)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	631 {
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	632 // do a "simplify" on the expression
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	633 te = lw_expr_stack_dup(rl -> expr);
264 346966cffeef Clean up various warnings when building under -Wall William Astle <lost@l-w.ca> parents: 263 diff changeset	634 lw_expr_reval(te, resolve_sym, &(fn -> sections[sn]));
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	635
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	636 // is it constant? error out if not
235 e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	637 // incompletes will error out during resolve_references()
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	638 //if (rval != 0 \|\| !lw_expr_is_constant(te))
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	639 //{
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	640 // fprintf(stderr, "Incomplete reference at %s:%s+%02X\n", fn -> filename, fn -> sections[sn].name, rl -> offset);
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	641 // symerr = 1;
e3741cf53e00 Fix error messages related to undefined symbols in lwlink William Astle <lost@l-w.ca> parents: 234 diff changeset	642 //}
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	643 lw_expr_stack_free(te);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	644 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	645 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	646
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	647 // handle any sub files
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	648 for (sn = 0; sn < fn -> nsubs; sn++)
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	649 resolve_files_aux(fn -> subs[sn]);
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	650 }
1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	651
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	652 /*
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	653 This is just a pared down version of the algo for resolving references.
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	654 */
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	655 void resolve_files(void)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	656 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	657 int fn;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	658
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	659 resolveonly = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	660
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	661 // resolve entry point if required
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	662 // this must resolve to an exported symbol and will resolve to the
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	663 // first instance of that symbol
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	664 // if (linkscript.execsym)
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	665 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	666 // lw_expr_stack_t *s;
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	667 //
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	668 // s = resolve_sym(linkscript.execsym, 0, NULL);
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	669 // if (!s)
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	670 // {
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	671 // fprintf(stderr, "Cannot resolve exec address '%s'\n", sanitize_symbol(linkscript.execsym));
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	672 // symerr = 1;
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	673 // }
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	674 // }
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	675
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	676 do
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	677 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	678 nforced = 0;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	679 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	680 {
155 1571e150f1fd Fixed error where external references within a library file were not resolved when linking lost@l-w.ca parents: 149 diff changeset	681 resolve_files_aux(inputfiles[fn]);
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	682 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	683 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	684 while (nforced == 1);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	685
157 4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	686 resolveonly = 0;
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	687
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	688 // if (symerr)
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	689 // exit(1);
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	690
4682460aed00 Correct bug with handling symbol resolution and constant section handling lost@l-w.ca parents: 156 diff changeset	691 symerr = 0;
0 2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	692 // theoretically, all files referenced by other files now have "forced" set to 1
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	693 for (fn = 0; fn < ninputfiles; fn++)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	694 {
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	695 if (inputfiles[fn] -> forced == 1)
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	696 continue;
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	697
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	698 fprintf(stderr, "Warning: %s (%d) does not resolve any symbols\n", inputfiles[fn] -> filename, fn);
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	699 }
2c24602be78f Initial import from lwtools 3.0.1 version, with new hand built build system and file reorganization lost@l-w.ca parents: diff changeset	700 }
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	701 void find_section_by_name_once_aux(char name, fileinfo_t fn, section_t *rval, int found);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	702 void find_section_by_name_once_aux(char name, fileinfo_t fn, section_t *rval, int found)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	703 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	704 int sn;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	705
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	706 if (fn -> forced == 0)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	707 return;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	708
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	709 for (sn = 0; sn < fn -> nsections; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	710 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	711 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	712 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	713 (*found)++;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	714 *rval = &(fn -> sections[sn]);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	715 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	716 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	717 for (sn = 0; sn < fn -> nsubs; sn++)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	718 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	719 find_section_by_name_once_aux(name, fn -> subs[sn], rval, found);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	720 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	721 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	722
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	723 section_t find_section_by_name_once(char name)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	724 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	725 int fn;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	726 int found = 0;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	727 section_t *rval = NULL;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	728
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	729 for (fn = 0; fn < ninputfiles; fn++)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	730 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	731 find_section_by_name_once_aux(name, inputfiles[fn], &rval, &found);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	732 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	733 if (found != 1)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	734 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	735 rval = NULL;
149 729a9c70934e Fixed crash and bogus warning with os9 module target lost@l-w.ca parents: 148 diff changeset	736 if (found > 1)
729a9c70934e Fixed crash and bogus warning with os9 module target lost@l-w.ca parents: 148 diff changeset	737 fprintf(stderr, "Warning: multiple instances of section %s found; ignoring all of them which is probably not what you want\n", name);
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	738 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	739 return rval;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	740 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	741
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	742 void foreach_section_aux(char name, fileinfo_t fn, void (fnp)(section_t s, void arg), void arg)
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	743 {
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	744 int sn;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	745
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	746 if (fn -> forced == 0)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	747 return;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	748
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	749 for (sn = 0; sn < fn -> nsections; sn++)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	750 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	751 if (!strcmp(name, (char *)(fn -> sections[sn].name)))
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	752 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	753 (*fnp)(&(fn -> sections[sn]), arg);
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	754 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	755 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	756 for (sn = 0; sn < fn -> nsubs; sn++)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	757 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	758 foreach_section_aux(name, fn -> subs[sn], fnp, arg);
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	759 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	760 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	761 void foreach_section(char name, void (fnp)(section_t s, void arg), void *arg)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	762 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	763 int fn;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	764
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	765 for (fn = 0; fn < ninputfiles; fn++)
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	766 {
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	767 foreach_section_aux(name, inputfiles[fn], fnp, arg);
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	768 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	769 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	770
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	771 struct check_os9_aux_s
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	772 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	773 int typeseen;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	774 int attrseen;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	775 int langseen;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	776 int revseen;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	777 int nameseen;
262 7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	778 int edseen;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	779 };
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	780
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	781 void check_os9_aux(section_t s, void arg)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	782 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	783 struct check_os9_aux_s *st = arg;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	784 symtab_t *sym;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	785
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	786 // this section is special
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	787 // several symbols may be defined as LOCAL symbols:
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	788 // type: module type
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	789 // lang: module language
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	790 // attr: module attributes
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	791 // rev: module revision
262 7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	792 // ed: module edition
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	793 //
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	794 // the symbols are not case sensitive
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	795 //
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	796 // any unrecognized symbols are ignored
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	797
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	798 // the contents of the actual data to the first NUL
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	799 // is assumed to be the module name unless it is an empty string
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	800 if (s -> codesize > 0 && (s -> flags & SECTION_BSS) == 0 && s -> code[0] != 0)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	801 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	802 linkscript.name = (char *)(s -> code);
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	803 st -> nameseen++;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	804 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	805
149 729a9c70934e Fixed crash and bogus warning with os9 module target lost@l-w.ca parents: 148 diff changeset	806 for (sym = s -> localsyms; sym; sym = sym -> next)
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	807 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	808 char sm = (char )(sym -> sym);
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	809 if (!strcasecmp(sm, "type"))
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	810 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	811 linkscript.modtype = sym -> offset;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	812 st -> typeseen++;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	813 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	814 else if (!strcasecmp(sm, "lang"))
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	815 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	816 linkscript.modlang = sym -> offset;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	817 st -> langseen++;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	818 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	819 else if (!strcasecmp(sm, "attr"))
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	820 {
257 d5374e80dd04 Fix handling of attr override for os9 output William Astle <lost@l-w.ca> parents: 238 diff changeset	821 linkscript.modattr = sym -> offset;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	822 st -> attrseen++;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	823 }
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	824 else if (!strcasecmp(sm, "rev"))
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	825 {
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	826 linkscript.modrev = sym -> offset;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	827 st -> revseen++;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	828 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	829 else if (!strcasecmp(sm, "stack"))
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	830 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	831 linkscript.stacksize += sym -> offset;
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	832 }
263 8dd8c3bdca7c Fix stupid error with ' vs " handling os9 edition William Astle <lost@l-w.ca> parents: 262 diff changeset	833 else if (!strcasecmp(sm, "edition"))
262 7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	834 {
7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	835 linkscript.edition = sym -> offset;
7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	836 st -> edseen++;
7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	837 }
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	838 }
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	839 }
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	840
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	841 void check_os9(void)
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	842 {
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	843 struct check_os9_aux_s st = { 0 };
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	844
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	845 linkscript.name = outfile;
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	846 foreach_section("__os9", check_os9_aux, &st);
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	847 if (linkscript.modtype > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	848 linkscript.modtype = linkscript.modtype >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	849
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	850 if (linkscript.modattr > 15)
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	851 linkscript.modattr = linkscript.modattr >> 4;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	852
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	853 linkscript.modlang &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	854 linkscript.modtype &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	855 linkscript.modrev &= 15;
08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	856 linkscript.modattr &= 15;
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	857
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	858 if (st.attrseen > 1 \|\| st.typeseen > 1 \|\|
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	859 st.langseen > 1 \|\| st.revseen > 1 \|\|
264 346966cffeef Clean up various warnings when building under -Wall William Astle <lost@l-w.ca> parents: 263 diff changeset	860 st.nameseen > 1 \|\| st.edseen > 1
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	861 )
ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	862 {
262 7de7b14ebaee Add support for os9 module edition byte William Astle <lost@l-w.ca> parents: 258 diff changeset	863 fprintf(stderr, "Warning: multiple instances of __os9 found with duplicate settings of type, lang, attr, rev, edition, or module name.\n");
258 ebda5c96665e Improved stack handling for os9 target in lwlink William Astle <lost@l-w.ca> parents: 257 diff changeset	864 }
148 08fb11004df9 Initial pass at OS9 module support for lwlink lost@l-w.ca parents: 8 diff changeset	865 }
236 ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	866
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	867 void resolve_padding(void)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	868 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	869 int sn;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	870
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	871 for (sn = 0; sn < nsects; sn++)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	872 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	873 if (sectlist[sn].ptr -> afterbytes)
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	874 {
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	875 unsigned char *t;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	876
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	877 t = lw_alloc(sectlist[sn].ptr -> codesize + sectlist[sn].ptr -> aftersize);
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	878 memmove(t, sectlist[sn].ptr -> code, sectlist[sn].ptr -> codesize);
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	879 sectlist[sn].ptr -> code = t;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	880 memmove(sectlist[sn].ptr -> code + sectlist[sn].ptr -> codesize, sectlist[sn].ptr -> afterbytes, sectlist[sn].ptr -> aftersize);
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	881 sectlist[sn].ptr -> codesize += sectlist[sn].ptr -> aftersize;
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	882 }
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	883 }
ce1fdc8d6568 Added ability to add padding after a section when linking. William Astle <lost@l-w.ca> parents: 235 diff changeset	884 }

Mercurial > hg > index.cgi

annotate lwlink/link.c @ 315:fcd103148aa6