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Add GCC compiler option. (#1056)

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* GCC support.

* Add note about gcc-mips-linux-gnu requirement to README.md.

* changes

* changes based on Tharo's suggestion

* Cant reproduce file_choose.h error. Removing unnecessary -I

* changes

* wording based on Fig's suggestion

* add AVOID_UB for eyes/mouth reordering issue.

* remove unneeded flags and deprecate ZAPDFLAGS.

* some changes, waiting on prs for the rest

* fixes

* discard header sections

* change section handling in mkldscript

* avoid_ub in DmaMgr_GetFileNameImpl

* move asm to inline asm (consolidate gcc functions)

* change prefix back

* remove space

* fix warnings

* Revert "remove space"

This reverts commit 94af6977b3.

* Revert "fix warnings"

This reverts commit d729ddf457.

* finish up missing_gcc_functions

* revert unwanted mkldscript change

* temporary workaround. TODO: Stop the asm processor from choking

* fix ido build

* Revert "temporary workaround. TODO: Stop the asm processor from choking"

This reverts commit 9df892b7ac.

* review

* remove unused line in mkldscript

* remove tabs

* clarify zf comment

* review2

* review

* remove duplicate cc_check

* vanilla code always come first

* std_dma avoid ub

* add compiler_gcc to cflags

* only use two blocks when necessary

* clarify zf comment

Co-authored-by: fig02 <fig02srl@gmail.com>
This commit is contained in:
Revo 2022-02-19 16:50:56 -05:00 committed by GitHub
parent 67f294774b
commit c3533052ca
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
11 changed files with 420 additions and 42 deletions
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63
Makefile
View file

@ -8,14 +8,32 @@ COMPARE ?= 1
NON_MATCHING ?= 0
# If ORIG_COMPILER is 1, compile with QEMU_IRIX and the original compiler
ORIG_COMPILER ?= 0
# If COMPILER is "gcc", compile with GCC instead of IDO.
COMPILER ?= ido
CFLAGS ?=
CPPFLAGS ?=
# ORIG_COMPILER cannot be combined with a non-IDO compiler. Check for this case and error out if found.
ifneq ($(COMPILER),ido)
ifeq ($(ORIG_COMPILER),1)
$(error ORIG_COMPILER can only be used with the IDO compiler. Please check your Makefile variables and try again)
endif
endif
ifeq ($(COMPILER),gcc)
CFLAGS += -DCOMPILER_GCC
CPPFLAGS += -DCOMPILER_GCC
NON_MATCHING := 1
endif
# Set prefix to mips binutils binaries (mips-linux-gnu-ld => 'mips-linux-gnu-') - Change at your own risk!
# In nearly all cases, not having 'mips-linux-gnu-*' binaries on the PATH is indicative of missing dependencies
MIPS_BINUTILS_PREFIX ?= mips-linux-gnu-
ifeq ($(NON_MATCHING),1)
CFLAGS := -DNON_MATCHING
CPPFLAGS := -DNON_MATCHING
CFLAGS += -DNON_MATCHING
CPPFLAGS += -DNON_MATCHING
COMPARE := 0
endif
@ -45,8 +63,17 @@ ifneq ($(shell type $(MIPS_BINUTILS_PREFIX)ld >/dev/null 2>/dev/null; echo $$?),
$(error Please install or build $(MIPS_BINUTILS_PREFIX))
endif
# Detect compiler and set variables appropriately.
ifeq ($(COMPILER),gcc)
CC := $(MIPS_BINUTILS_PREFIX)gcc
else
ifeq ($(COMPILER),ido)
CC := tools/ido_recomp/$(DETECTED_OS)/7.1/cc
CC_OLD := tools/ido_recomp/$(DETECTED_OS)/5.3/cc
else
$(error Unsupported compiler. Please use either ido or gcc as the COMPILER variable.)
endif
endif
# if ORIG_COMPILER is 1, check that either QEMU_IRIX is set or qemu-irix package installed
ifeq ($(ORIG_COMPILER),1)
@ -71,7 +98,6 @@ INC := -Iinclude -Isrc -Iassets -Ibuild -I.
# Check code syntax with host compiler
CHECK_WARNINGS := -Wall -Wextra -Wno-format-security -Wno-unknown-pragmas -Wno-unused-parameter -Wno-unused-variable -Wno-missing-braces -Wno-int-conversion
CC_CHECK := gcc -fno-builtin -fsyntax-only -fsigned-char -std=gnu90 -D _LANGUAGE_C -D NON_MATCHING $(INC) $(CHECK_WARNINGS)
CPP := cpp
MKLDSCRIPT := tools/mkldscript
@ -80,20 +106,35 @@ ELF2ROM := tools/elf2rom
ZAPD := tools/ZAPD/ZAPD.out
FADO := tools/fado/fado.elf
ifeq ($(COMPILER),gcc)
OPTFLAGS := -Os -ffast-math -fno-unsafe-math-optimizations
else
OPTFLAGS := -O2
ASFLAGS := -march=vr4300 -32 -Iinclude
MIPS_VERSION := -mips2
endif
ASFLAGS := -march=vr4300 -32 -Iinclude
ifeq ($(COMPILER),gcc)
CFLAGS += -G 0 -nostdinc $(INC) -DAVOID_UB -march=vr4300 -mfix4300 -mabi=32 -mno-abicalls -mdivide-breaks -fno-zero-initialized-in-bss -fno-toplevel-reorder -ffreestanding -fno-common -fno-merge-constants -mno-explicit-relocs -mno-split-addresses $(CHECK_WARNINGS) -funsigned-char
MIPS_VERSION := -mips3
else
# we support Microsoft extensions such as anonymous structs, which the compiler does support but warns for their usage. Surpress the warnings with -woff.
CFLAGS += -G 0 -non_shared -Xfullwarn -Xcpluscomm $(INC) -Wab,-r4300_mul -woff 649,838,712
MIPS_VERSION := -mips2
endif
ifeq ($(COMPILER),ido)
CC_CHECK = gcc -fno-builtin -fsyntax-only -funsigned-char -std=gnu90 -D_LANGUAGE_C -DNON_MATCHING $(INC) $(CHECK_WARNINGS)
ifeq ($(shell getconf LONG_BIT), 32)
# Work around memory allocation bug in QEMU
export QEMU_GUEST_BASE := 1
else
# Ensure that gcc treats the code as 32-bit
# Ensure that gcc (warning check) treats the code as 32-bit
CC_CHECK += -m32
endif
else
CC_CHECK = @:
endif
#### Files ####
@ -103,7 +144,12 @@ ELF := $(ROM:.z64=.elf)
# description of ROM segments
SPEC := spec
ifeq ($(COMPILER),ido)
SRC_DIRS := $(shell find src -type d -not -path src/gcc_fix)
else
SRC_DIRS := $(shell find src -type d)
endif
ASM_DIRS := $(shell find asm -type d -not -path "asm/non_matchings*") $(shell find data -type d)
ASSET_BIN_DIRS := $(shell find assets/* -type d -not -path "assets/xml*" -not -path "assets/text")
ASSET_FILES_XML := $(foreach dir,$(ASSET_BIN_DIRS),$(wildcard $(dir)/*.xml))
@ -134,6 +180,7 @@ TEXTURE_FILES_OUT := $(foreach f,$(TEXTURE_FILES_PNG:.png=.inc.c),build/$f) \
# create build directories
$(shell mkdir -p build/baserom build/assets/text $(foreach dir,$(SRC_DIRS) $(ASM_DIRS) $(ASSET_BIN_DIRS),build/$(dir)))
ifeq ($(COMPILER),ido)
build/src/code/fault.o: CFLAGS += -trapuv
build/src/code/fault.o: OPTFLAGS := -O2 -g3
build/src/code/fault_drawer.o: CFLAGS += -trapuv
@ -172,6 +219,10 @@ build/src/code/%.o: CC := python3 tools/asm_processor/build.py $(CC) -- $(AS) $(
build/src/overlays/%.o: CC := python3 tools/asm_processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
build/assets/%.o: CC := python3 tools/asm_processor/build.py $(CC) -- $(AS) $(ASFLAGS) --
else
build/src/libultra/libc/ll.o: OPTFLAGS := -Ofast
build/src/%.o: CC := $(CC) -fexec-charset=euc-jp
endif
#### Main Targets ###

4
README.md
View file

@ -83,6 +83,10 @@ To install the Python dependencies simply run in a terminal:
python3 -m pip install colorama
```
If you are using GCC as the compiler for Ocarina of Time, you will also need:
* gcc-mips-linux-gnu
#### 2. Clone the repository
Clone `https://github.com/zeldaret/oot.git` where you wish to have the project, with a command such as:

8
include/functions.h
View file

@ -4,7 +4,15 @@
#include "z64.h"
f32 fabsf(f32 f);
#ifndef __sgi
#define fabsf __builtin_fabsf
f32 __floatundisf(u32 c);
f64 __floatundidf(u32 c);
f32 __powisf2(f32 a, s32 b);
unsigned long __udivdi3(unsigned long a, unsigned long b);
#else
#pragma intrinsic(fabsf)
#endif
f32 sqrtf(f32 f);
#pragma intrinsic(sqrtf)
f64 sqrt(f64 d);

3
spec
View file

@ -109,6 +109,9 @@ beginseg
include "build/src/libultra/os/gethwintrroutine.o"
include "build/asm/__osSetWatchLo.o"
include "build/data/rsp_boot.text.o"
#ifdef COMPILER_GCC
include "build/src/gcc_fix/missing_gcc_functions.o"
#endif
endseg
beginseg

3
src/boot/z_std_dma.c
View file

@ -210,6 +210,9 @@ const char* DmaMgr_GetFileNameImpl(u32 vrom) {
}
//! @bug Since there is no return, in case the file isn't found, the return value will be a pointer to the end
// of gDmaDataTable
#ifdef AVOID_UB
return "";
#endif
}
const char* DmaMgr_GetFileName(u32 vrom) {

5
src/code/audio_heap.c
View file

@ -1019,9 +1019,12 @@ void* AudioHeap_AllocPermanent(s32 tableType, s32 id, u32 size) {
gAudioContext.permanentCache[index].tableType = tableType;
gAudioContext.permanentCache[index].id = id;
gAudioContext.permanentCache[index].size = size;
//! @bug UB: missing return. "ret" is in v0 at this point, but doing an
// explicit return uses an additional register.
// return ret;
#ifdef AVOID_UB
return ret;
#endif
}
void* AudioHeap_AllocSampleCache(u32 size, s32 fontId, void* sampleAddr, s8 medium, s32 cache) {

23
src/code/z_player_lib.c
View file

@ -655,6 +655,7 @@ u8 sEyeMouthIndexes[][2] = {
* shiftability, and changes will need to be made in the code to account for this in a modding scenario. The symbols
* from adult Link's object are used here.
*/
#ifndef AVOID_UB
void* sEyeTextures[] = {
gLinkAdultEyesOpenTex, gLinkAdultEyesHalfTex, gLinkAdultEyesClosedfTex, gLinkAdultEyesRollLeftTex,
gLinkAdultEyesRollRightTex, gLinkAdultEyesShockTex, gLinkAdultEyesUnk1Tex, gLinkAdultEyesUnk2Tex,
@ -666,6 +667,20 @@ void* sMouthTextures[] = {
gLinkAdultMouth3Tex,
gLinkAdultMouth4Tex,
};
#else
// Defining `AVOID_UB` will use a 2D array instead and properly use the child link pointers to allow for shifting.
void* sEyeTextures[][8] = {
{ gLinkAdultEyesOpenTex, gLinkAdultEyesHalfTex, gLinkAdultEyesClosedfTex, gLinkAdultEyesRollLeftTex,
gLinkAdultEyesRollRightTex, gLinkAdultEyesShockTex, gLinkAdultEyesUnk1Tex, gLinkAdultEyesUnk2Tex },
{ gLinkChildEyesOpenTex, gLinkChildEyesHalfTex, gLinkChildEyesClosedfTex, gLinkChildEyesRollLeftTex,
gLinkChildEyesRollRightTex, gLinkChildEyesShockTex, gLinkChildEyesUnk1Tex, gLinkChildEyesUnk2Tex },
};
void* sMouthTextures[][4] = {
{ gLinkAdultMouth1Tex, gLinkAdultMouth2Tex, gLinkAdultMouth3Tex, gLinkAdultMouth4Tex },
{ gLinkChildMouth1Tex, gLinkChildMouth2Tex, gLinkChildMouth3Tex, gLinkChildMouth4Tex },
};
#endif
Color_RGB8 sTunicColors[] = {
{ 30, 105, 27 },
@ -696,13 +711,21 @@ void func_8008F470(GlobalContext* globalCtx, void** skeleton, Vec3s* jointTable,
eyeIndex = sEyeMouthIndexes[face][0];
}
#ifndef AVOID_UB
gSPSegment(POLY_OPA_DISP++, 0x08, SEGMENTED_TO_VIRTUAL(sEyeTextures[eyeIndex]));
#else
gSPSegment(POLY_OPA_DISP++, 0x08, SEGMENTED_TO_VIRTUAL(sEyeTextures[gSaveContext.linkAge][eyeIndex]));
#endif
if (mouthIndex < 0) {
mouthIndex = sEyeMouthIndexes[face][1];
}
#ifndef AVOID_UB
gSPSegment(POLY_OPA_DISP++, 0x09, SEGMENTED_TO_VIRTUAL(sMouthTextures[mouthIndex]));
#else
gSPSegment(POLY_OPA_DISP++, 0x09, SEGMENTED_TO_VIRTUAL(sMouthTextures[gSaveContext.linkAge][mouthIndex]));
#endif
color = &sTunicColors[tunic];
gDPSetEnvColor(POLY_OPA_DISP++, color->r, color->g, color->b, 0);

211
src/gcc_fix/missing_gcc_functions.c Normal file
View file

@ -0,0 +1,211 @@
/* --------------------------------------------------------------------------------*/
/* Depending on the toolchain used, an appropriate precompiled libgcc library */
/* may not exist and cannot be linked against. Until we have a better work around, */
/* necessary gcc functions are hosted here in order to properly compile. */
/* This file is NOT a part of the original game and only exists to help gcc work. */
/* --------------------------------------------------------------------------------*/
#include "global.h"
// Self-hosted memcmp.
int memcmp(void* s1, const void* s2, size_t n) {
u8* m1 = (u8*)s1;
u8* m2 = (u8*)s2;
u32 i;
for (i = 0; i < n; i++) {
if (m1[i] < m2[i]) {
return -1;
} else if (m1[i] > m2[i]) {
return 1;
}
}
return 0;
}
void* memset(void* str, s32 c, size_t n) {
u8* m1 = (u8*)str;
u32 i;
for (i = 0; i < n; i++) {
m1[i] = c;
}
return str;
}
// These functions convert c to an unsigned integer, rounding toward zero. Negative values
// all become zero.
u32 __fixunssfdi(f32 a) {
if (a < 0.0f) {
a = 0.0f;
}
return (u32)a;
}
u32 __fixunsdfdi(f64 a) {
if (a < 0.0) {
a = 0.0;
}
return (u32)a;
}
// These functions convert c to a signed integer, rounding toward zero.
s32 __fixsfdi(f32 c) {
return (s32)c;
}
s32 __fixdfdi(f64 c) {
return (s32)c;
}
// These functions convert c, a signed integer, to floating point.
f32 __floatdisf(s32 c) {
return (f32)c;
}
f64 __floatdidf(s32 c) {
return (f64)c;
}
// These functions convert c, an unsigned integer, to floating point.
f32 __floatundisf(u32 c) {
return (f32)c;
}
f64 __floatundidf(u32 c) {
return (f64)c;
}
f32 __powisf2(f32 a, s32 b) {
const s32 recip = b < 0;
f32 r = 1;
while (1) {
if (b & 1) {
r *= a;
}
b /= 2;
if (b == 0) {
break;
}
a *= a;
}
return recip ? 1 / r : r;
}
__asm__(" \n\
.set push \n\
.set noat \n\
.set noreorder \n\
.set gp=64 \n\
\n\
.global __umoddi3 \n\
__umoddi3: \n\
.type __umoddi3, @function \n\
.ent __umoddi3 \n\
sw $a0, ($sp) \n\
sw $a1, 4($sp) \n\
sw $a2, 8($sp) \n\
sw $a3, 0xc($sp) \n\
ld $t7, 8($sp) \n\
ld $t6, ($sp) \n\
ddivu $zero, $t6, $t7 \n\
bnez $t7, 1f \n\
nop \n\
break 7 \n\
1: \n\
mfhi $v0 \n\
dsll32 $v1, $v0, 0 \n\
dsra32 $v1, $v1, 0 \n\
jr $ra \n\
dsra32 $v0, $v0, 0 \n\
.end __umoddi3 \n\
.size __umoddi3, . - __umoddi3 \n\
\n\
.global __udivdi3 \n\
__udivdi3: \n\
.type __udivdi3, @function \n\
.ent __udivdi3 \n\
sw $a0, ($sp) \n\
sw $a1, 4($sp) \n\
sw $a2, 8($sp) \n\
sw $a3, 0xc($sp) \n\
ld $t7, 8($sp) \n\
ld $t6, ($sp) \n\
ddivu $zero, $t6, $t7 \n\
bnez $t7, 1f \n\
nop \n\
break 7 \n\
1: \n\
mflo $v0 \n\
dsll32 $v1, $v0, 0 \n\
dsra32 $v1, $v1, 0 \n\
jr $ra \n\
dsra32 $v0, $v0, 0 \n\
.end __udivdi3 \n\
.size __udivdi3, . - __udivdi3 \n\
\n\
.global __moddi3 \n\
__moddi3: \n\
.type __moddi3, @function \n\
.ent __moddi3 \n\
sw $a0, ($sp) \n\
sw $a1, 4($sp) \n\
sw $a2, 8($sp) \n\
sw $a3, 0xc($sp) \n\
ld $t7, 8($sp) \n\
ld $t6, ($sp) \n\
ddivu $zero, $t6, $t7 \n\
bnez $t7, 1f \n\
nop \n\
break 7 \n\
1: \n\
mfhi $v0 \n\
dsll32 $v1, $v0, 0 \n\
dsra32 $v1, $v1, 0 \n\
jr $ra \n\
dsra32 $v0, $v0, 0 \n\
.end __moddi3 \n\
.size __moddi3, . - __moddi3 \n\
\n\
.global __divdi3 \n\
__divdi3: \n\
.type __divdi3, @function \n\
.ent __divdi3 \n\
sw $a0, ($sp) \n\
sw $a1, 4($sp) \n\
sw $a2, 8($sp) \n\
sw $a3, 0xc($sp) \n\
ld $t7, 8($sp) \n\
ld $t6, ($sp) \n\
ddiv $zero, $t6, $t7 \n\
nop \n\
bnez $t7, 1f \n\
nop \n\
break 7 \n\
1: \n\
daddiu $at, $zero, -1 \n\
bne $t7, $at, 2f \n\
daddiu $at, $zero, 1 \n\
dsll32 $at, $at, 0x1f \n\
bne $t6, $at, 2f \n\
nop \n\
break 6 \n\
2: \n\
mflo $v0 \n\
dsll32 $v1, $v0, 0 \n\
dsra32 $v1, $v1, 0 \n\
jr $ra \n\
dsra32 $v0, $v0, 0 \n\
.end __divdi3 \n\
.size __divdi3, . - __divdi3 \n\
\n\
.set pop \n\
\n");

3
src/overlays/actors/ovl_En_Tana/z_en_tana.c
View file

@ -33,6 +33,9 @@ const ActorInit En_Tana_InitVars = {
static const char* sShelfTypes[] = {
"木の棚", // "Wooden Shelves"
"石の棚", // "Stone Shelves"
#ifdef AVOID_UB
"",
#endif
};
static const ActorFunc sDrawFuncs[] = {

7
src/overlays/actors/ovl_En_Zf/z_en_zf.c
View file

@ -452,9 +452,14 @@ s16 EnZf_FindNextPlatformAwayFromPlayer(Vec3f* pos, s16 curPlatform, s16 arg2, G
}
}
// These functions have no side effects, so these two calls do nothing
//! @bug `altNextPlatform` can be -1 in certain conditions and cause an out of bounds access.
//! Under normal conditions, this doesn't cause problems because the data before `sPlatformPositions`
//! is section padding between .text and .data, so 0 gets read as a float.
// These two function calls do nothing. Their return values aren't used and they have no side effects.
#ifndef AVOID_UB
Math_Vec3f_DistXYZ(&player->actor.world.pos, &sPlatformPositions[nextPlatform]);
Math_Vec3f_DistXYZ(&player->actor.world.pos, &sPlatformPositions[altNextPlatform]);
#endif
if (altNextPlatform > 0) {
s16 nextPlatformToPlayerYaw =

110
tools/mkldscript.c
View file

@ -9,6 +9,15 @@
#include "spec.h"
#include "util.h"
// Note: *SECTION ALIGNMENT* Object files built with a compiler such as GCC can, by default, use narrower
// alignment for sections size, compared to IDO padding sections to a 0x10-aligned size.
// To properly generate relocations relative to section starts, sections currently need to be aligned
// explicitly (to 0x10 currently, a narrower alignment might work), otherwise the linker does implicit alignment
// and inserts padding between the address indicated by section start symbols (such as *SegmentRoDataStart) and
// the actual aligned start of the section.
// With IDO, the padding of sections to an aligned size makes the section start at aligned addresses out of the box,
// so the explicit alignment has no further effect.
struct Segment *g_segments;
int g_segmentsCount;
@ -17,7 +26,8 @@ static void write_ld_script(FILE *fout)
int i;
int j;
fputs("SECTIONS {\n"
fputs("OUTPUT_ARCH (mips)\n\n"
"SECTIONS {\n"
" _RomSize = 0;\n"
" _RomStart = _RomSize;\n\n",
fout);
@ -62,6 +72,7 @@ static void write_ld_script(FILE *fout)
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, " . = ALIGN(0x10);\n");
}
fprintf(fout, " _%sSegmentTextEnd = .;\n", seg->name);
@ -73,7 +84,8 @@ static void write_ld_script(FILE *fout)
for (j = 0; j < seg->includesCount; j++)
{
if (!seg->includes[j].dataWithRodata)
fprintf(fout, " %s (.data)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.data)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
}
/*
@ -94,8 +106,11 @@ static void write_ld_script(FILE *fout)
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);
fprintf(fout, " %s (.data)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata)\n"
" . = ALIGN(0x10);\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
@ -104,13 +119,14 @@ static void write_ld_script(FILE *fout)
// 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, " %s (.rodata.str1.4)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata.cst4)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
fprintf(fout, " %s (.rodata.cst8)\n"
" . = ALIGN(0x10);\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);
@ -118,9 +134,8 @@ static void write_ld_script(FILE *fout)
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, " %s (.sdata)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
fprintf(fout, " _%sSegmentSDataEnd = .;\n", seg->name);
@ -129,23 +144,20 @@ static void write_ld_script(FILE *fout)
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
// align end of ROM segment
if (seg->fields & (1 << STMT_romalign))
fprintf(fout, " _RomSize = (_RomSize + %i) & ~ %i;\n", seg->romalign - 1, seg->romalign - 1);
@ -156,16 +168,26 @@ static void write_ld_script(FILE *fout)
" . = 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);
fprintf(fout, " %s (.sbss)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.scommon)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.scommon)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (.bss)\n", seg->includes[j].fpath);
fprintf(fout, " %s (.bss)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
for (j = 0; j < seg->includesCount; j++)
fprintf(fout, " %s (COMMON)\n", seg->includes[j].fpath);
fprintf(fout, " %s (COMMON)\n"
" . = ALIGN(0x10);\n", seg->includes[j].fpath);
fprintf(fout, " . = ALIGN(0x10);\n"
" _%sSegmentBssEnd = .;\n"
" _%sSegmentEnd = .;\n"
@ -193,13 +215,55 @@ static void write_ld_script(FILE *fout)
//fprintf(fout, "\n }\n");
}
fputs(" _RomEnd = _RomSize;\n\n", fout);
fputs(" _RomEnd = _RomSize;\n}\n", fout);
// Debugging sections
fputs(
// mdebug debug sections
" .mdebug : { *(.mdebug) }" "\n"
" .mdebug.abi32 : { *(.mdebug.abi32) }" "\n"
// DWARF debug sections
// Symbols in the DWARF debugging sections are relative to the beginning of the section so we begin them at 0.
// DWARF 1
" .debug 0 : { *(.debug) }" "\n"
" .line 0 : { *(.line) }" "\n"
// GNU DWARF 1 extensions
" .debug_srcinfo 0 : { *(.debug_srcinfo) }" "\n"
" .debug_sfnames 0 : { *(.debug_sfnames) }" "\n"
// DWARF 1.1 and DWARF 2
" .debug_aranges 0 : { *(.debug_aranges) }" "\n"
" .debug_pubnames 0 : { *(.debug_pubnames) }" "\n"
// DWARF 2
" .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }" "\n"
" .debug_abbrev 0 : { *(.debug_abbrev) }" "\n"
" .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) }" "\n"
" .debug_frame 0 : { *(.debug_frame) }" "\n"
" .debug_str 0 : { *(.debug_str) }" "\n"
" .debug_loc 0 : { *(.debug_loc) }" "\n"
" .debug_macinfo 0 : { *(.debug_macinfo) }" "\n"
// SGI/MIPS DWARF 2 extensions
" .debug_weaknames 0 : { *(.debug_weaknames) }" "\n"
" .debug_funcnames 0 : { *(.debug_funcnames) }" "\n"
" .debug_typenames 0 : { *(.debug_typenames) }" "\n"
" .debug_varnames 0 : { *(.debug_varnames) }" "\n"
// DWARF 3
" .debug_pubtypes 0 : { *(.debug_pubtypes) }" "\n"
" .debug_ranges 0 : { *(.debug_ranges) }" "\n"
// DWARF Extension
" .debug_macro 0 : { *(.debug_macro) }" "\n"
" .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }" "\n", fout);
// Discard all other sections not mentioned above
fputs(" /DISCARD/ :" "\n"
" {" "\n"
" *(*);" "\n"
" }" "\n", fout);
fputs("}\n", fout);
}
static void usage(const char *execname)
{
fprintf(stderr, "Nintendo 64 linker script generation tool v0.02\n"
fprintf(stderr, "Nintendo 64 linker script generation tool v0.03\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",