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Bump object version number

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We're about to break the format, so let's do this
This commit is contained in:
ISSOtm
2020-01-13 15:25:25 +01:00
parent f2be601a13
commit 359a048b6e
2 changed files with 107 additions and 6 deletions
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111
src/link/object.c
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@@ -426,6 +426,99 @@ static void readRGB6File(FILE *file, char const *fileName)
}
}
/**
* Reads a RGB7 object file.
* @param file The file to read from
* @param fileName The filename to report in errors
*/
static void readRGB7File(FILE *file, char const *fileName)
{
uint32_t nbSymbols;
uint32_t nbSections;
tryReadlong(nbSymbols, file, "%s: Cannot read number of symbols: %s",
fileName);
tryReadlong(nbSections, file, "%s: Cannot read number of sections: %s",
fileName);
nbSectionsToAssign += nbSections;
/* This file's symbols, kept to link sections to them */
struct Symbol **fileSymbols =
malloc(sizeof(*fileSymbols) * nbSymbols + 1);
if (!fileSymbols)
err(1, "Failed to get memory for %s's symbols", fileName);
struct SymbolList *symbolList = malloc(sizeof(*symbolList));
if (!symbolList)
err(1, "Failed to register %s's symbol list", fileName);
symbolList->symbolList = fileSymbols;
symbolList->nbSymbols = nbSymbols;
symbolList->next = symbolLists;
symbolLists = symbolList;
uint32_t nbSymPerSect[nbSections ? nbSections : 1];
memset(nbSymPerSect, 0, sizeof(nbSymPerSect));
verbosePrint("Reading %u symbols...\n", nbSymbols);
for (uint32_t i = 0; i < nbSymbols; i++) {
/* Read symbol */
struct Symbol *symbol = malloc(sizeof(*symbol));
if (!symbol)
err(1, "%s: Couldn't create new symbol", fileName);
readSymbol(file, symbol, fileName);
fileSymbols[i] = symbol;
if (symbol->type == SYMTYPE_EXPORT)
sym_AddSymbol(symbol);
if (symbol->sectionID != -1)
nbSymPerSect[symbol->sectionID]++;
}
/* This file's sections, stored in a table to link symbols to them */
struct Section *fileSections[nbSections ? nbSections : 1];
verbosePrint("Reading %u sections...\n", nbSections);
for (uint32_t i = 0; i < nbSections; i++) {
/* Read section */
struct Section *section = malloc(sizeof(*section));
if (!section)
err(1, "%s: Couldn't create new section", fileName);
readSection(file, section, fileName);
section->fileSymbols = fileSymbols;
sect_AddSection(section);
fileSections[i] = section;
if (nbSymPerSect[i]) {
section->symbols = malloc(sizeof(*section->symbols)
* nbSymPerSect[i]);
if (!section->symbols)
err(1, "%s: Couldn't link to symbols");
} else {
section->symbols = NULL;
}
section->nbSymbols = 0;
}
/* Give symbols pointers to their sections */
for (uint32_t i = 0; i < nbSymbols; i++) {
int32_t sectionID = fileSymbols[i]->sectionID;
if (sectionID == -1) {
fileSymbols[i]->section = NULL;
} else {
fileSymbols[i]->section = fileSections[sectionID];
/* Give the section a pointer to the symbol as well */
linkSymToSect(fileSymbols[i], fileSections[sectionID]);
}
}
}
/**
* Reads an object file of any supported format
* @param fileName The filename to report for errors
@@ -446,16 +539,24 @@ void obj_ReadFile(char const *fileName)
if (matchedElems != 1)
errx(1, "\"%s\" is not a RGBDS object file", fileName);
/* TODO: support other versions? */
if (versionNumber != 6)
errx(1, "\"%s\" is an incompatible version %hhu object file",
fileName, versionNumber);
verbosePrint("Reading object file %s, version %hhu\n",
fileName, versionNumber);
readRGB6File(file, fileName);
switch (versionNumber) {
case 6:
readRGB6File(file, fileName);
break;
case 7:
readRGB7File(file, fileName);
break;
/* TODO: support older versions? */
default:
errx(1, "\"%s\" is an incompatible version %hhu object file",
fileName, versionNumber);
}
fclose(file);
}