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Handle multiple functions, properly mangle symbols, and fix support for

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scattered relocations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33555 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman
2007-01-26 22:39:48 +00:00
parent ea516cce65
commit 6635f35cae
3 changed files with 80 additions and 35 deletions
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35
lib/Target/PowerPC/PPCMachOWriter.cpp
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@@ -27,7 +27,7 @@ namespace {
: MachOWriter(O, TM) {}
virtual void GetTargetRelocation(MachineRelocation &MR, MachOSection &From,
MachOSection &To);
MachOSection &To, bool Scattered);
// Constants for the relocation r_type field.
// see <mach-o/ppc/reloc.h>
@@ -59,7 +59,8 @@ void llvm::addPPCMachOObjectWriterPass(FunctionPassManager &FPM,
/// by that relocation type.
void PPCMachOWriter::GetTargetRelocation(MachineRelocation &MR,
MachOSection &From,
MachOSection &To) {
MachOSection &To,
bool Scattered) {
uint64_t Addr = 0;
// Keep track of whether or not this is an externally defined relocation.
@@ -77,18 +78,30 @@ void PPCMachOWriter::GetTargetRelocation(MachineRelocation &MR,
case PPC::reloc_vanilla:
{
// FIXME: need to handle 64 bit vanilla relocs
MachORelocation VANILLA(MR.getMachineCodeOffset(), To.Index, false, 2,
isExtern, PPC_RELOC_VANILLA);
MachORelocation VANILLA(MR.getMachineCodeOffset(), To.Index, false, 2,
isExtern, PPC_RELOC_VANILLA, Scattered,
(intptr_t)MR.getResultPointer());
++From.nreloc;
OutputBuffer RelocOut(From.RelocBuffer, is64Bit, isLittleEndian);
RelocOut.outword(VANILLA.r_address);
RelocOut.outword(VANILLA.getPackedFields());
OutputBuffer SecOut(From.SectionData, is64Bit, isLittleEndian);
SecOut.fixword(Addr, MR.getMachineCodeOffset());
break;
if (Scattered) {
RelocOut.outword(VANILLA.getPackedFields());
RelocOut.outword(VANILLA.getAddress());
} else {
RelocOut.outword(VANILLA.getAddress());
RelocOut.outword(VANILLA.getPackedFields());
}
intptr_t SymbolOffset;
if (Scattered)
SymbolOffset = Addr + MR.getConstantVal();
else
SymbolOffset = Addr;
printf("vanilla fixup: sec_%x[%x] = %x\n", From.Index, unsigned(MR.getMachineCodeOffset()), (unsigned)SymbolOffset);
SecOut.fixword(SymbolOffset, MR.getMachineCodeOffset());
}
break;
case PPC::reloc_pcrel_bx:
{
Addr -= MR.getMachineCodeOffset();
@@ -124,7 +137,6 @@ void PPCMachOWriter::GetTargetRelocation(MachineRelocation &MR,
RelocOut.outword(HA16.getPackedFields());
RelocOut.outword(PAIR.r_address);
RelocOut.outword(PAIR.getPackedFields());
printf("ha16: %x\n", (unsigned)Addr);
Addr += 0x8000;
OutputBuffer SecOut(From.SectionData, is64Bit, isLittleEndian);
@@ -145,7 +157,6 @@ void PPCMachOWriter::GetTargetRelocation(MachineRelocation &MR,
RelocOut.outword(LO16.getPackedFields());
RelocOut.outword(PAIR.r_address);
RelocOut.outword(PAIR.getPackedFields());
printf("lo16: %x\n", (unsigned)Addr);
OutputBuffer SecOut(From.SectionData, is64Bit, isLittleEndian);
SecOut.fixhalf(Addr, MR.getMachineCodeOffset() + 2);