Game-Decompilation/oot
1
0
Fork 0
mirror of https://github.com/zeldaret/oot.git synced 2024-12-18 08:27:35 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
71be03da7c
oot/tools/mkldscript.c
Tharo 04a9d51e90
Rework handling of dmadata (#1036) 
* Generate dmadata

* Remove tab indentations in mkdmadata.c and mkldscript.c

* Fix

* Review suggestions

* Hopefully fix

* Fix index

Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>

Co-authored-by: Dragorn421 <Dragorn421@users.noreply.github.com>
2021-12-01 00:29:09 +01:00

234 lines
9.0 KiB
C
Raw Blame History

#include <ctype.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "spec.h"
#include "util.h"
struct Segment *g_segments;
int g_segmentsCount;
static void write_ld_script(FILE *fout)
{
int i;
int j;
fputs("SECTIONS {\n"
" _RomSize = 0;\n"
" _RomStart = _RomSize;\n\n",
fout);
for (i = 0; i < g_segmentsCount; i++)
{
const struct Segment *seg = &g_segments[i];
// align start of ROM segment
if (seg->fields & (1 << STMT_romalign))
fprintf(fout, " _RomSize = (_RomSize + %i) & ~ %i;\n", seg->romalign - 1, seg->romalign - 1);
// initialized data (.text, .data, .rodata, .sdata)
// Increment the start of the section
//if (seg->fields & (1 << STMT_increment))
//fprintf(fout, " . += 0x%08X;\n", seg->increment);
fprintf(fout, " _%sSegmentRomStartTemp = _RomSize;\n"
" _%sSegmentRomStart = _%sSegmentRomStartTemp;\n"
" ..%s ", seg->name, seg->name, seg->name, seg->name);
if (seg->fields & (1 << STMT_after))
fprintf(fout, "_%sSegmentEnd ", seg->after);
else if (seg->fields & (1 << STMT_number))
fprintf(fout, "0x%02X000000 ", seg->number);
else if (seg->fields & (1 << STMT_address))
fprintf(fout, "0x%08X ", seg->address);
// (AT(_RomSize) isn't necessary, but adds useful "load address" lines to the map file)
fprintf(fout, ": AT(_RomSize)\n {\n"
" _%sSegmentStart = .;\n"
" . = ALIGN(0x10);\n"
" _%sSegmentTextStart = .;\n",
seg->name, seg->name);
if (seg->fields & (1 << STMT_align))
fprintf(fout, " . = ALIGN(0x%X);\n", seg->align);
for (j = 0; j < seg->includesCount; j++)
{
fprintf(fout, " %s (.text)\n", seg->includes[j].fpath);
if (seg->includes[j].linkerPadding != 0)
fprintf(fout, " . += 0x%X;\n", seg->includes[j].linkerPadding);
}
fprintf(fout, " _%sSegmentTextEnd = .;\n", seg->name);
fprintf(fout, " _%sSegmentTextSize = ABSOLUTE( _%sSegmentTextEnd - _%sSegmentTextStart );\n", seg->name, seg->name, seg->name);
fprintf(fout, " _%sSegmentDataStart = .;\n", seg->name);
for (j = 0; j < seg->includesCount; j++)
{
if (!seg->includes[j].dataWithRodata)
fprintf(fout, " %s (.data)\n", seg->includes[j].fpath);
}
/*
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.rodata)\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.sdata)\n", seg->includes[j].fpath);
*/
//fprintf(fout, " . = ALIGN(0x10);\n");
fprintf(fout, " _%sSegmentDataEnd = .;\n", seg->name);
fprintf(fout, " _%sSegmentDataSize = ABSOLUTE( _%sSegmentDataEnd - _%sSegmentDataStart );\n", seg->name, seg->name, seg->name);
fprintf(fout, " _%sSegmentRoDataStart = .;\n", seg->name);
for (j = 0; j < seg->includesCount; j++)
{
if (seg->includes[j].dataWithRodata)
fprintf(fout, " %s (.data)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata)\n", seg->includes[j].fpath);
// Compilers other than IDO, such as GCC, produce different sections such as
// the ones named directly below. These sections do not contain values that
// need relocating, but we need to ensure that the base .rodata section
// always comes first. The reason this is important is due to relocs assuming
// the base of .rodata being the offset for the relocs and thus needs to remain
// the beginning of the entire rodata area in order to remain consistent.
// Inconsistencies will lead to various .rodata reloc crashes as a result of
// either missing relocs or wrong relocs.
fprintf(fout, " %s (.rodata.str1.4)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata.cst4)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata.cst8)\n", seg->includes[j].fpath);
}
//fprintf(fout, " . = ALIGN(0x10);\n");
fprintf(fout, " _%sSegmentRoDataEnd = .;\n", seg->name);
fprintf(fout, " _%sSegmentRoDataSize = ABSOLUTE( _%sSegmentRoDataEnd - _%sSegmentRoDataStart );\n", seg->name, seg->name, seg->name);
fprintf(fout, " _%sSegmentSDataStart = .;\n", seg->name);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.sdata)\n", seg->includes[j].fpath);
fprintf(fout, " . = ALIGN(0x10);\n");
fprintf(fout, " _%sSegmentSDataEnd = .;\n", seg->name);
fprintf(fout, " _%sSegmentOvlStart = .;\n", seg->name);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.ovl)\n", seg->includes[j].fpath);
fprintf(fout, " . = ALIGN(0x10);\n");
fprintf(fout, " _%sSegmentOvlEnd = .;\n", seg->name);
if (seg->fields & (1 << STMT_increment))
fprintf(fout, " . += 0x%08X;\n", seg->increment);
fputs(" }\n", fout);
//fprintf(fout, " _RomSize += ( _%sSegmentDataEnd - _%sSegmentTextStart );\n", seg->name, seg->name);
fprintf(fout, " _RomSize += ( _%sSegmentOvlEnd - _%sSegmentTextStart );\n", seg->name, seg->name);
fprintf(fout, " _%sSegmentRomEndTemp = _RomSize;\n"
"_%sSegmentRomEnd = _%sSegmentRomEndTemp;\n\n",
seg->name, seg->name, seg->name);
// algn end of ROM segment
if (seg->fields & (1 << STMT_romalign))
fprintf(fout, " _RomSize = (_RomSize + %i) & ~ %i;\n", seg->romalign - 1, seg->romalign - 1);
// uninitialized data (.sbss, .scommon, .bss, COMMON)
fprintf(fout, " ..%s.bss ADDR(..%s) + SIZEOF(..%s) (NOLOAD) :\n"
/*" ..%s.bss :\n"*/
" {\n"
" . = ALIGN(0x10);\n"
" _%sSegmentBssStart = .;\n",
seg->name, seg->name, seg->name, seg->name);
if (seg->fields & (1 << STMT_align))
fprintf(fout, " . = ALIGN(0x%X);\n", seg->align);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.sbss)\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.scommon)\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.bss)\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (COMMON)\n", seg->includes[j].fpath);
fprintf(fout, " . = ALIGN(0x10);\n"
" _%sSegmentBssEnd = .;\n"
" _%sSegmentEnd = .;\n"
" }\n"
" _%sSegmentBssSize = ABSOLUTE( _%sSegmentBssEnd - _%sSegmentBssStart );\n\n",
seg->name, seg->name, seg->name, seg->name, seg->name);
// Increment the end of the segment
//if (seg->fields & (1 << STMT_increment))
//fprintf(fout, " . += 0x%08X;\n", seg->increment);
//fprintf(fout, " ..%s.ovl ADDR(..%s) + SIZEOF(..%s) :\n"
// /*" ..%s.bss :\n"*/
// " {\n",
// seg->name, seg->name, seg->name);
//fprintf(fout, " _%sSegmentOvlStart = .;\n", seg->name);
//for (j = 0; j < seg->includesCount; j++)
// fprintf(fout, " %s (.ovl)\n", seg->includes[j].fpath);
////fprintf(fout, " . = ALIGN(0x10);\n");
//fprintf(fout, " _%sSegmentOvlEnd = .;\n", seg->name);
//fprintf(fout, "\n }\n");
}
fputs(" _RomEnd = _RomSize;\n}\n", fout);
}
static void usage(const char *execname)
{
fprintf(stderr, "Nintendo 64 linker script generation tool v0.02\n"
"usage: %s SPEC_FILE LD_SCRIPT\n"
"SPEC_FILE file describing the organization of object files into segments\n"
"LD_SCRIPT filename of output linker script\n",
execname);
}
int main(int argc, char **argv)
{
FILE *ldout;
void *spec;
size_t size;
if (argc != 3)
{
usage(argv[0]);
return 1;
}
spec = util_read_whole_file(argv[1], &size);
parse_rom_spec(spec, &g_segments, &g_segmentsCount);
ldout = fopen(argv[2], "w");
if (ldout == NULL)
util_fatal_error("failed to open file '%s' for writing", argv[2]);
write_ld_script(ldout);
fclose(ldout);
free(spec);
return 0;
}
Reference in New Issue View Git Blame Copy Permalink