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[ELF2] Revert of r251692 

llvm-svn: 251782
This commit is contained in:
George Rimar 2015-11-02 08:24:16 +00:00
parent fa798a9dbb
commit 0e8d1922c8
1 changed files with 0 additions and 10 deletions
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10
lld/ELF/Target.cpp
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@ -228,10 +228,6 @@ void X86_64TargetInfo::writePltZeroEntry(uint8_t *Buf, uint64_t GotEntryAddr,
0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp *GOT+16(%rip) 0xff, 0x25, 0x00, 0x00, 0x00, 0x00, // jmp *GOT+16(%rip)
0x0f, 0x1f, 0x40, 0x00 // nopl 0x0(rax) 0x0f, 0x1f, 0x40, 0x00 // nopl 0x0(rax)
}; };
// 1. NextPC = PltEntryAddr + 6,
// GotEntryAddr - NextPC + 8 = GotEntryAddr - PltEntryAddr + 2.
// 2. NextPC = PltEntryAddr + 6 + 6,
// GotEntryAddr - NextPC + 16 = GotEntryAddr - PltEntryAddr + 4.
memcpy(Buf, PltData, sizeof(PltData)); memcpy(Buf, PltData, sizeof(PltData));
write32le(Buf + 2, GotEntryAddr - PltEntryAddr + 2); // GOT+8 write32le(Buf + 2, GotEntryAddr - PltEntryAddr + 2); // GOT+8
write32le(Buf + 8, GotEntryAddr - PltEntryAddr + 4); // GOT+16 write32le(Buf + 8, GotEntryAddr - PltEntryAddr + 4); // GOT+16
@ -247,12 +243,6 @@ void X86_64TargetInfo::writePltEntry(uint8_t *Buf, uint64_t GotEntryAddr,
}; };
memcpy(Buf, Inst, sizeof(Inst)); memcpy(Buf, Inst, sizeof(Inst));
// 1. NextPC = PltEntryAddr + 6,
// GotEntryAddr - NextPC = GotEntryAddr - PltEntryAddr - 6.
// 2. Index is just and index of PLT record.
// 3. NextPC = PltEntryAddr + 6 + 5 + 5 = PltEntryAddr + 16,
// PltEntryAddr - Index * PltEntrySize - PltZeroEntrySize - NextPC =
// -Index * PltEntrySize - PltZeroEntrySize - 16.
write32le(Buf + 2, GotEntryAddr - PltEntryAddr - 6); write32le(Buf + 2, GotEntryAddr - PltEntryAddr - 6);
write32le(Buf + 7, Index); write32le(Buf + 7, Index);
write32le(Buf + 12, -Index * PltEntrySize - PltZeroEntrySize - 16); write32le(Buf + 12, -Index * PltEntrySize - PltZeroEntrySize - 16);