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| author | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-06-21 14:44:37 +0000 |
|---|---|---|
| committer | Ulrich Weigand <ulrich.weigand@de.ibm.com> | 2013-06-21 14:44:37 +0000 |
| commit | 84569698f01bcb49afe5b6140bf0d61cf4f3cf5a (patch) | |
| tree | ce5b44d09442fcfc6faf259ee486feb918417b86 /lib | |
| parent | cab0a1933875935c717136d251e2af9749533ba8 (diff) | |
| download | llvm-84569698f01bcb49afe5b6140bf0d61cf4f3cf5a.tar.gz llvm-84569698f01bcb49afe5b6140bf0d61cf4f3cf5a.tar.bz2 llvm-84569698f01bcb49afe5b6140bf0d61cf4f3cf5a.tar.xz | |
[PowerPC] Support R_PPC_REL16 family of relocations
The GNU assembler supports (as extension to the ABI) use of PC-relative
relocations in half16 fields, which allows writing code like:
li 1, base-.
This patch adds support for those relocation types in the assembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184552 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp b/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp index 0155a89945..69e84a18a3 100644 --- a/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp +++ b/lib/Target/PowerPC/MCTargetDesc/PPCELFObjectWriter.cpp @@ -63,6 +63,23 @@ unsigned PPCELFObjectWriter::getRelocTypeInner(const MCValue &Target, case PPC::fixup_ppc_brcond14: Type = ELF::R_PPC_REL14; break; + case PPC::fixup_ppc_half16: + switch (Modifier) { + default: llvm_unreachable("Unsupported Modifier"); + case MCSymbolRefExpr::VK_None: + Type = ELF::R_PPC_REL16; + break; + case MCSymbolRefExpr::VK_PPC_LO: + Type = ELF::R_PPC_REL16_LO; + break; + case MCSymbolRefExpr::VK_PPC_HI: + Type = ELF::R_PPC_REL16_HI; + break; + case MCSymbolRefExpr::VK_PPC_HA: + Type = ELF::R_PPC_REL16_HA; + break; + } + break; case FK_Data_4: case FK_PCRel_4: Type = ELF::R_PPC_REL32; |