intel/llvm
1
0
Fork 0
mirror of https://github.com/intel/llvm.git synced 2026-01-27 06:06:34 +08:00
Code Issues Packages Projects Releases Wiki Activity

[ELF] - Process R_X86_64_GOTPCRELX/R_X86_64_REX_GOTPCRELX relocations.

Browse Source 
R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations were added in latest ABI:
https://github.com/hjl-tools/x86-psABI/wiki/x86-64-psABI-r249.pdf

They should be generated instead of R_X86_64_GOTPCREL for cases 
when relaxation is possible. Currently this patch just process them in the 
same way like R_X86_64_GOTPCREL. That should work for now
and we can implement relaxations later.

There is no testcases provided as I think there is no way to generate
such relocations using llvm-mc atm.

Differential revision: http://reviews.llvm.org/D18301

llvm-svn: 264043
This commit is contained in:
George Rimar
2016-03-22 12:15:26 +00:00
parent 33ef7dad18
commit 9f8f4e3944
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
lld/ELF/Target.cpp
View File

@@ -736,7 +736,8 @@ bool X86_64TargetInfo::needsCopyRelImpl(uint32_t Type) const {
}
bool X86_64TargetInfo::refersToGotEntry(uint32_t Type) const {
return Type == R_X86_64_GOTPCREL;
return Type == R_X86_64_GOTPCREL || Type == R_X86_64_GOTPCRELX ||
Type == R_X86_64_REX_GOTPCRELX;
}
bool X86_64TargetInfo::needsGot(uint32_t Type, SymbolBody &S) const {
@@ -934,6 +935,8 @@ void X86_64TargetInfo::relocateOne(uint8_t *Loc, uint8_t *BufEnd, uint32_t Type,
write32le(Loc, SA);
break;
case R_X86_64_GOTPCREL:
case R_X86_64_GOTPCRELX:
case R_X86_64_REX_GOTPCRELX:
case R_X86_64_PC32:
case R_X86_64_PLT32:
case R_X86_64_TLSGD: