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https://github.com/gbdev/rgbds.git
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Merge pull request #158 from Ben10do/remove-legacy-object-files
Remove support for legacy object files
This commit is contained in:
AntonioND
GitHub
@@ -1,14 +1,14 @@
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#ifndef RGBDS_ASM_LINK_H
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#define RGBDS_ASM_LINK_H
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/* RGB0 .obj format:
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/* RGB4 .o format:
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*
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* Header
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* Symbols
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* Sections
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*
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* Header:
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* "RGB0"
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* "RGB4"
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* LONG NumberOfSymbols
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* LONG NumberOfSections
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*
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@@ -28,9 +28,13 @@
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* Section[NumberOfSections]
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*
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* Section:
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* char SectionName (NULL-terminated)
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* LONG SizeInBytes
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* char Type
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* if( Type!=WRAM0 )
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* LONG OrgPosition
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* LONG Bank
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* LONG Alignment
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* if (Type == ROM0 || Type == ROMX)
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* {
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* char Data[SizeInBytes]
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* Patches
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@@ -19,11 +19,6 @@ struct sSection *pLibSections = NULL;
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UBYTE dummymem;
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BBOOL oReadLib = 0;
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enum ObjectFileContents {
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CONTAINS_SECTION_NAME = 1 << 0,
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CONTAINS_SECTION_ALIGNMENT = 1 << 1
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};
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/*
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* The usual byte order stuff
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*
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@@ -137,169 +132,20 @@ obj_ReadSymbol(FILE * f)
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}
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return pSym;
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}
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/*
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* RGB0 object reader routines
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* RGB object reader routines
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*
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*/
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struct sSection *
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obj_ReadRGB0Section(FILE * f)
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{
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struct sSection *pSection;
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pSection = AllocSection();
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pSection->pzName = "";
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pSection->nByteSize = readlong(f);
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pSection->Type = (enum eSectionType) fgetc(f);
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pSection->nOrg = -1;
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pSection->nBank = -1;
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pSection->nAlign = 1;
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if ((options & OPT_TINY) && (pSection->Type == SECT_ROMX)) {
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errx(1, "ROMX sections can't be used with option -t.");
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}
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if ((options & OPT_CONTWRAM) && (pSection->Type == SECT_WRAMX)) {
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errx(1, "WRAMX sections can't be used with option -w.");
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}
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if ((pSection->Type == SECT_ROMX) || (pSection->Type == SECT_ROM0)) {
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/*
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* These sectiontypes contain data...
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*
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*/
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if (pSection->nByteSize) {
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pSection->pData = malloc(pSection->nByteSize);
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if (!pSection->pData) {
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err(1, NULL);
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}
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SLONG nNumberOfPatches;
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struct sPatch **ppPatch, *pPatch;
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fread(pSection->pData, sizeof(UBYTE),
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pSection->nByteSize, f);
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nNumberOfPatches = readlong(f);
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ppPatch = &pSection->pPatches;
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/*
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* And patches...
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*
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*/
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while (nNumberOfPatches--) {
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pPatch = malloc(sizeof *pPatch);
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if (!pPatch) {
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err(1, NULL);
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}
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*ppPatch = pPatch;
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readasciiz(&pPatch->pzFilename, f);
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pPatch->nLineNo =
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readlong(f);
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pPatch->nOffset =
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readlong(f);
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pPatch->Type =
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(enum ePatchType)
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fgetc(f);
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if ((pPatch->nRPNSize = readlong(f)) > 0) {
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pPatch->pRPN = malloc(pPatch->nRPNSize);
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if (!pPatch->pRPN) {
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err(1, NULL);
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}
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fread(pPatch->pRPN, sizeof(UBYTE),
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pPatch->nRPNSize, f);
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} else
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pPatch->pRPN = NULL;
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pPatch->pNext = NULL;
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ppPatch = &(pPatch->pNext);
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}
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} else {
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/* Skip number of patches */
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readlong(f);
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pSection->pData = &dummymem;
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}
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}
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return pSection;
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}
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void
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obj_ReadRGB0(FILE * pObjfile)
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{
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struct sSection *pFirstSection;
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SLONG nNumberOfSymbols, nNumberOfSections, i;
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nNumberOfSymbols = readlong(pObjfile);
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nNumberOfSections = readlong(pObjfile);
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/* First comes the symbols */
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if (nNumberOfSymbols) {
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tSymbols = malloc(nNumberOfSymbols * sizeof(struct sSymbol *));
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if (!tSymbols) {
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err(1, NULL);
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}
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for (i = 0; i < nNumberOfSymbols; i += 1)
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tSymbols[i] = obj_ReadSymbol(pObjfile);
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} else
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tSymbols = (struct sSymbol **) & dummymem;
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/* Next we have the sections */
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pFirstSection = NULL;
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while (nNumberOfSections--) {
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struct sSection *pNewSection;
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pNewSection = obj_ReadRGB0Section(pObjfile);
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pNewSection->nNumberOfSymbols = nNumberOfSymbols;
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if (pFirstSection == NULL)
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pFirstSection = pNewSection;
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}
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/*
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* Fill in the pSection entry in the symbolstructure.
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* This REALLY needs some cleaning up... but, hey, it works
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*
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*/
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for (i = 0; i < nNumberOfSymbols; i += 1) {
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struct sSection *pConvSect = pFirstSection;
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if (tSymbols[i]->Type != SYM_IMPORT
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&& tSymbols[i]->nSectionID != -1) {
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SLONG j = 0;
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while (j != tSymbols[i]->nSectionID) {
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j += 1;
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pConvSect = pConvSect->pNext;
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}
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tSymbols[i]->pSection = pConvSect;
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} else
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tSymbols[i]->pSection = NULL;
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}
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}
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/*
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* RGB1 object reader routines
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*
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*/
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struct sSection *
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obj_ReadRGBSection(FILE * f, enum ObjectFileContents contents)
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obj_ReadRGBSection(FILE * f)
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{
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struct sSection *pSection;
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char *pzName;
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if (contents & CONTAINS_SECTION_NAME) {
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readasciiz(&pzName, f);
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if (IsSectionNameInUse(pzName))
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errx(1, "Section name \"%s\" is already in use.", pzName);
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} else {
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pzName = "";
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}
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pSection = AllocSection();
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pSection->pzName = pzName;
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@@ -308,12 +154,7 @@ obj_ReadRGBSection(FILE * f, enum ObjectFileContents contents)
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pSection->Type = (enum eSectionType) fgetc(f);
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pSection->nOrg = readlong(f);
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pSection->nBank = readlong(f);
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if (contents & CONTAINS_SECTION_ALIGNMENT) {
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pSection->nAlign = readlong(f);
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} else {
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pSection->nAlign = 1;
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}
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if ((options & OPT_TINY) && (pSection->Type == SECT_ROMX)) {
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errx(1, "ROMX sections can't be used with option -t.");
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@@ -380,7 +221,7 @@ obj_ReadRGBSection(FILE * f, enum ObjectFileContents contents)
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}
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void
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obj_ReadRGB(FILE * pObjfile, enum ObjectFileContents contents)
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obj_ReadRGB(FILE * pObjfile)
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{
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struct sSection *pFirstSection;
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SLONG nNumberOfSymbols, nNumberOfSections, i;
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@@ -407,7 +248,7 @@ obj_ReadRGB(FILE * pObjfile, enum ObjectFileContents contents)
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while (nNumberOfSections--) {
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struct sSection *pNewSection;
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pNewSection = obj_ReadRGBSection(pObjfile, contents);
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pNewSection = obj_ReadRGBSection(pObjfile);
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pNewSection->nNumberOfSymbols = nNumberOfSymbols;
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if (pFirstSection == NULL)
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pFirstSection = pNewSection;
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@@ -448,20 +289,12 @@ obj_ReadOpenFile(FILE * pObjfile, char *tzObjectfile)
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tzHeader[4] = 0;
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if (strncmp(tzHeader, "RGB", 3) == 0) {
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switch (tzHeader[3]) {
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case '0':
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obj_ReadRGB0(pObjfile);
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break;
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case '1':
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case '2':
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//V2 is really the same but the are new patch types
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obj_ReadRGB(pObjfile, 0);
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break;
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case '3': // V3 is very similiar, but contains section names and byte alignment
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case '3':
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case '4': // V4 supports OAM sections, but is otherwise identical
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obj_ReadRGB(pObjfile, CONTAINS_SECTION_NAME | CONTAINS_SECTION_ALIGNMENT);
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obj_ReadRGB(pObjfile);
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break;
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default:
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errx(1, "'%s' is an unsupported version", tzObjectfile);
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errx(1, "'%s' uses an unsupported object file version (%s). Please reassemble it.", tzObjectfile, tzHeader);
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}
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} else {
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errx(1, "'%s' is not a valid object", tzObjectfile);
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