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| author | Nico Rieck <nico.rieck@gmail.com> | 2013-04-10 23:28:17 +0000 |
|---|---|---|
| committer | Nico Rieck <nico.rieck@gmail.com> | 2013-04-10 23:28:17 +0000 |
| commit | 1da4529b15ed80e5d6c0b21d3ac46538fbcad87f (patch) | |
| tree | e8405a0153ee13919176b470d5febec56dee98e3 /llvm/lib/MC/MCExpr.cpp | |
| parent | 51f6fb9a189fc62694d30f54322c9007168e1844 (diff) | |
| download | bcm5719-llvm-1da4529b15ed80e5d6c0b21d3ac46538fbcad87f.tar.gz bcm5719-llvm-1da4529b15ed80e5d6c0b21d3ac46538fbcad87f.zip | |
MC: Support COFF image-relative MCSymbolRefs
Add support for the COFF relocation types IMAGE_REL_I386_DIR32NB and
IMAGE_REL_AMD64_ADDR32NB for 32- and 64-bit respectively. These are
similar to normal 4-byte relocations except that they do not include
the base address of the image.
Image-relative relocations are used for debug information (32-bit) and
SEH unwind tables (64-bit).
A new MCSymbolRef variant called 'VK_COFF_IMGREL32' is introduced to
specify such relocations. For AT&T assembly, this variant can be accessed
using the symbol suffix '@imgrel'.
llvm-svn: 179240
Diffstat (limited to 'llvm/lib/MC/MCExpr.cpp')
| -rw-r--r-- | llvm/lib/MC/MCExpr.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCExpr.cpp b/llvm/lib/MC/MCExpr.cpp index cd4d144575b..d54c2641834 100644 --- a/llvm/lib/MC/MCExpr.cpp +++ b/llvm/lib/MC/MCExpr.cpp @@ -250,6 +250,7 @@ StringRef MCSymbolRefExpr::getVariantKindName(VariantKind Kind) { case VK_Mips_GOT_LO16: return "GOT_LO16"; case VK_Mips_CALL_HI16: return "CALL_HI16"; case VK_Mips_CALL_LO16: return "CALL_LO16"; + case VK_COFF_IMGREL32: return "IMGREL32"; } llvm_unreachable("Invalid variant kind"); } @@ -285,6 +286,8 @@ MCSymbolRefExpr::getVariantKindForName(StringRef Name) { .Case("dtpoff", VK_DTPOFF) .Case("TLVP", VK_TLVP) .Case("tlvp", VK_TLVP) + .Case("IMGREL", VK_COFF_IMGREL32) + .Case("imgrel", VK_COFF_IMGREL32) .Default(VK_Invalid); } |
