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author | Rafael Espindola <rafael.espindola@gmail.com> | 2011-04-28 16:09:09 +0000 |
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committer | Rafael Espindola <rafael.espindola@gmail.com> | 2011-04-28 16:09:09 +0000 |
commit | bfa27cc5d72e061a96efbb461864d40bc8089ec2 (patch) | |
tree | 264794fe94c50660195e166ca8b4e06bacef809f /lib/MC | |
parent | 8bca4106dfc2945723251db10e340183f3e372dd (diff) | |
download | llvm-bfa27cc5d72e061a96efbb461864d40bc8089ec2.tar.gz llvm-bfa27cc5d72e061a96efbb461864d40bc8089ec2.tar.bz2 llvm-bfa27cc5d72e061a96efbb461864d40bc8089ec2.tar.xz |
Add a getExprForPersonalitySymbol method to MCAsmInfo. Use it when
converting the symbol passed to .cfi_personality into bytes is the file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130400 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC')
-rw-r--r-- | lib/MC/MCAsmInfo.cpp | 8 | ||||
-rw-r--r-- | lib/MC/MCAsmInfoDarwin.cpp | 13 | ||||
-rw-r--r-- | lib/MC/MCDwarf.cpp | 15 |
3 files changed, 35 insertions, 1 deletions
diff --git a/lib/MC/MCAsmInfo.cpp b/lib/MC/MCAsmInfo.cpp index 116c007a45..873802ae98 100644 --- a/lib/MC/MCAsmInfo.cpp +++ b/lib/MC/MCAsmInfo.cpp @@ -13,6 +13,8 @@ //===----------------------------------------------------------------------===// #include "llvm/MC/MCAsmInfo.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCStreamer.h" #include "llvm/Support/DataTypes.h" #include <cctype> #include <cstring> @@ -106,3 +108,9 @@ unsigned MCAsmInfo::getSLEB128Size(int Value) { } while (IsMore); return Size; } + +const MCExpr * +MCAsmInfo::getExprForPersonalitySymbol(const MCSymbol *Sym, + MCStreamer &Streamer) const { + return MCSymbolRefExpr::Create(Sym, Streamer.getContext()); +} diff --git a/lib/MC/MCAsmInfoDarwin.cpp b/lib/MC/MCAsmInfoDarwin.cpp index 526ad0da42..04862fae16 100644 --- a/lib/MC/MCAsmInfoDarwin.cpp +++ b/lib/MC/MCAsmInfoDarwin.cpp @@ -13,6 +13,9 @@ //===----------------------------------------------------------------------===// #include "llvm/MC/MCAsmInfoDarwin.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MCExpr.h" +#include "llvm/MC/MCStreamer.h" using namespace llvm; MCAsmInfoDarwin::MCAsmInfoDarwin() { @@ -57,3 +60,13 @@ MCAsmInfoDarwin::MCAsmInfoDarwin() { DwarfUsesLabelOffsetForRanges = false; } +const MCExpr * +MCAsmInfoDarwin::getExprForPersonalitySymbol(const MCSymbol *Sym, + MCStreamer &Streamer) const { + MCContext &Context = Streamer.getContext(); + const MCExpr *Res = MCSymbolRefExpr::Create(Sym, Context); + MCSymbol *PCSym = Context.CreateTempSymbol(); + Streamer.EmitLabel(PCSym); + const MCExpr *PC = MCSymbolRefExpr::Create(PCSym, Context); + return MCBinaryExpr::CreateSub(Res, PC, Context); +} diff --git a/lib/MC/MCDwarf.cpp b/lib/MC/MCDwarf.cpp index 974bcba7c7..d677d0c3b6 100644 --- a/lib/MC/MCDwarf.cpp +++ b/lib/MC/MCDwarf.cpp @@ -480,6 +480,19 @@ static void EmitSymbol(MCStreamer &streamer, const MCSymbol &symbol, } } +static void EmitPersonality(MCStreamer &streamer, const MCSymbol &symbol, + unsigned symbolEncoding) { + MCContext &context = streamer.getContext(); + const MCAsmInfo &asmInfo = context.getAsmInfo(); + const MCExpr *v = asmInfo.getExprForPersonalitySymbol(&symbol, streamer); + unsigned size = getSizeForEncoding(streamer, symbolEncoding); + unsigned application = symbolEncoding & 0x70; + if (isa<MCSymbolRefExpr>(v) && application == dwarf::DW_EH_PE_pcrel) + streamer.EmitPCRelValue(v, size); + else + streamer.EmitValue(v, size); +} + static const MachineLocation TranslateMachineLocation( const TargetAsmInfo &AsmInfo, const MachineLocation &Loc) { @@ -681,7 +694,7 @@ const MCSymbol &FrameEmitterImpl::EmitCIE(MCStreamer &streamer, // Personality Encoding streamer.EmitIntValue(personalityEncoding, 1); // Personality - EmitSymbol(streamer, *personality, personalityEncoding); + EmitPersonality(streamer, *personality, personalityEncoding); } if (lsda) { // LSDA Encoding |