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Fixing analyzer issues

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This commit is contained in:
Carl-Henrik Skårstedt 2015-11-15 22:15:34 -08:00
parent 563ff4d1ec
commit 7fbe9661fa
1 changed files with 23 additions and 15 deletions
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38
x65.cpp
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@ -5941,12 +5941,15 @@ static int _AddStrPool(const strref str, pairArray<unsigned int, int> *pLookup,
StatusCode Asm::WriteObjectFile(strref filename)
{
if (allSections.size()==0)
return ERROR_NOT_A_SECTION;
if (FILE *f = fopen(strown<512>(filename).c_str(), "wb")) {
struct ObjFileHeader hdr = { 0 };
hdr.id = 0x7836;
hdr.sections = (short)allSections.size();
hdr.relocs = 0;
hdr.bindata = 0;
for (std::vector<Section>::iterator s = allSections.begin(); s!=allSections.end(); ++s) {
if (s->type != ST_REMOVED) {
if (s->pRelocs)
@ -5965,6 +5968,11 @@ StatusCode Asm::WriteObjectFile(strref filename)
hdr.labels++;
}
short *aRemapSects = hdr.sections ? (short*)malloc(sizeof(short) * hdr.sections) : nullptr;
if (!aRemapSects) {
fclose(f);
return ERROR_OUT_OF_MEMORY;
}
// include space for external protected labels
for (std::vector<ExtLabels>::iterator el = externals.begin(); el != externals.end(); ++el)
@ -5982,9 +5990,6 @@ StatusCode Asm::WriteObjectFile(strref filename)
struct ObjFileMapSymbol *aMapSyms = hdr.map_symbols ? (struct ObjFileMapSymbol*)calloc(hdr.map_symbols, sizeof(struct ObjFileMapSymbol)) : nullptr;
int sect = 0, reloc = 0, labs = 0, late = 0, map_sym = 0;
short *aRemapSects = (short*)malloc(sizeof(short) * hdr.sections);
if (!aRemapSects)
return ERROR_OUT_OF_MEMORY;
memset(aRemapSects, 0xff, sizeof(short) * hdr.sections);
// discard the removed sections by making a table of skipped indices
@ -5992,7 +5997,7 @@ StatusCode Asm::WriteObjectFile(strref filename)
if (si->type != ST_REMOVED)
aRemapSects[&*si-&allSections[0]] = sect++;
}
sect = 0;
// write out sections and relocs
if (hdr.sections) {
@ -6378,8 +6383,7 @@ StatusCode Asm::WriteA2GS_OMF(strref filename, bool full_collapse)
std::vector<int> SegLookup; // inverse of SegNum
SegNum.reserve(allSections.size());
SegLookup.reserve(allSections.size());
int reloc_max = 0;
int num_valid_seg = 0;
int reloc_max = 1;
// OMF super instructions work by incremental addresses, sort relocs to simplify output
for (std::vector<Section>::iterator s = allSections.begin(); s != allSections.end(); ++s) {
@ -6397,14 +6401,18 @@ StatusCode Asm::WriteA2GS_OMF(strref filename, bool full_collapse)
for (std::vector<int>::iterator i = SegNum.begin(); i != SegNum.end(); ++i)
SegLookup[*i] = (int)(&*i - &SegNum[0]);
unsigned char *instructions = (unsigned char*)malloc(reloc_max * 16);
if (!instructions)
return ERROR_OUT_OF_MEMORY;
// open a file for writing
FILE *f = fopen(strown<512>(filename).c_str(), "wb");
if (!f)
if (!f) {
free(instructions);
return ERROR_CANT_WRITE_TO_FILE;
}
// consume all the relocs
unsigned char *instructions = (unsigned char*)malloc(reloc_max * 16);
unsigned char zeroes[256] = { 0 };
struct OMFSegHdr hdr = { 0 }; // initialize segment header
hdr.NumLen[0] = 4; // numbers are 4 bytes under GS OS
hdr.Version[0] = 2; // version is 2 for GS OS
@ -6465,8 +6473,7 @@ StatusCode Asm::WriteA2GS_OMF(strref filename, bool full_collapse)
} else
++r;
}
if (inst_curr == (instruction_offs + 6)) inst_curr = instruction_offs; // rewind - no records
else {
if (inst_curr > (instruction_offs + 6)) {
_writeNBytes(instructions + len_offs, 4, inst_curr - instruction_offs - 5);
instruction_offs = inst_curr;
}
@ -6521,8 +6528,7 @@ StatusCode Asm::WriteA2GS_OMF(strref filename, bool full_collapse)
if (instruction_offs > 5)
fwrite(instructions + 5, instruction_offs - 5, 1, f); // reloc instructions
}
// print a list of super instructions for each section
free(instructions);
fclose(f);
return STATUS_OK;
}
@ -6595,8 +6601,10 @@ int main(int argc, char **argv)
allinstr_file = arg.after('=');
} else if (arg.has_prefix(org)) {
arg = arg.after('=');
if (arg && arg.get_first() == '$') assembler.default_org = (arg + 1).ahextoui();
else if (arg.is_number()) assembler.default_org = arg.atoi();
if (arg && arg.get_first() == '$' && arg.get_len()>1)
assembler.default_org = (arg + 1).ahextoui();
else if (arg.is_number())
assembler.default_org = arg.atoi();
} else if (arg.has_prefix(acc) && arg[acc.get_len()] == '=') {
assembler.accumulator_16bit = arg.after('=').atoi() == 16;
} else if (arg.has_prefix(xy) && arg[xy.get_len()] == '=') {