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author | Benjamin Kramer <benny.kra@googlemail.com> | 2010-09-02 18:53:37 +0000 |
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committer | Benjamin Kramer <benny.kra@googlemail.com> | 2010-09-02 18:53:37 +0000 |
commit | 1674b0b0e4972b844833f253286cbf99a6e99d6e (patch) | |
tree | 14ea7fe3f3ffc71b12eb5dd1dadb633812d116aa /lib | |
parent | 3e234e757965a3c30f31227b60575841441368b6 (diff) | |
download | llvm-1674b0b0e4972b844833f253286cbf99a6e99d6e.tar.gz llvm-1674b0b0e4972b844833f253286cbf99a6e99d6e.tar.bz2 llvm-1674b0b0e4972b844833f253286cbf99a6e99d6e.tar.xz |
Add AsmParser support for the ELF .previous directive. Patch by Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112849 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/MC/MCAsmStreamer.cpp | 1 | ||||
-rw-r--r-- | lib/MC/MCNullStreamer.cpp | 1 | ||||
-rw-r--r-- | lib/MC/MCObjectStreamer.cpp | 1 | ||||
-rw-r--r-- | lib/MC/MCParser/ELFAsmParser.cpp | 10 | ||||
-rw-r--r-- | lib/MC/MCStreamer.cpp | 3 |
5 files changed, 15 insertions, 1 deletions
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp index 4ededb24fd..1cc8fb0b54 100644 --- a/lib/MC/MCAsmStreamer.cpp +++ b/lib/MC/MCAsmStreamer.cpp @@ -217,6 +217,7 @@ static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) { void MCAsmStreamer::SwitchSection(const MCSection *Section) { assert(Section && "Cannot switch to a null section!"); if (Section != CurSection) { + PrevSection = CurSection; CurSection = Section; Section->PrintSwitchToSection(MAI, OS); } diff --git a/lib/MC/MCNullStreamer.cpp b/lib/MC/MCNullStreamer.cpp index 5332ade211..f7a2f20ca4 100644 --- a/lib/MC/MCNullStreamer.cpp +++ b/lib/MC/MCNullStreamer.cpp @@ -26,6 +26,7 @@ namespace { /// @{ virtual void SwitchSection(const MCSection *Section) { + PrevSection = CurSection; CurSection = Section; } diff --git a/lib/MC/MCObjectStreamer.cpp b/lib/MC/MCObjectStreamer.cpp index eed4e7bd4f..2b2385ef91 100644 --- a/lib/MC/MCObjectStreamer.cpp +++ b/lib/MC/MCObjectStreamer.cpp @@ -77,6 +77,7 @@ void MCObjectStreamer::SwitchSection(const MCSection *Section) { // If already in this section, then this is a noop. if (Section == CurSection) return; + PrevSection = CurSection; CurSection = Section; CurSectionData = &getAssembler().getOrCreateSectionData(*Section); } diff --git a/lib/MC/MCParser/ELFAsmParser.cpp b/lib/MC/MCParser/ELFAsmParser.cpp index b0bc5c6114..f982fdaecb 100644 --- a/lib/MC/MCParser/ELFAsmParser.cpp +++ b/lib/MC/MCParser/ELFAsmParser.cpp @@ -50,6 +50,7 @@ public: AddDirectiveHandler<&ELFAsmParser::ParseDirectiveSize>(".size"); AddDirectiveHandler<&ELFAsmParser::ParseDirectiveLEB128>(".sleb128"); AddDirectiveHandler<&ELFAsmParser::ParseDirectiveLEB128>(".uleb128"); + AddDirectiveHandler<&ELFAsmParser::ParseDirectivePrevious>(".previous"); } bool ParseSectionDirectiveData(StringRef, SMLoc) { @@ -111,6 +112,7 @@ public: bool ParseDirectiveLEB128(StringRef, SMLoc); bool ParseDirectiveSection(StringRef, SMLoc); bool ParseDirectiveSize(StringRef, SMLoc); + bool ParseDirectivePrevious(StringRef, SMLoc); }; } @@ -272,6 +274,14 @@ bool ELFAsmParser::ParseDirectiveLEB128(StringRef DirName, SMLoc) { return TokError("LEB128 not supported yet"); } +bool ELFAsmParser::ParseDirectivePrevious(StringRef DirName, SMLoc) { + const MCSection *PreviousSection = getStreamer().getPreviousSection(); + if (PreviousSection != NULL) + getStreamer().SwitchSection(PreviousSection); + + return false; +} + namespace llvm { MCAsmParserExtension *createELFAsmParser() { diff --git a/lib/MC/MCStreamer.cpp b/lib/MC/MCStreamer.cpp index f682721b4a..3e9d02ea5a 100644 --- a/lib/MC/MCStreamer.cpp +++ b/lib/MC/MCStreamer.cpp @@ -15,7 +15,8 @@ #include <cstdlib> using namespace llvm; -MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), CurSection(0) { +MCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), CurSection(0), + PrevSection(0) { } MCStreamer::~MCStreamer() { |