diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/lib/MC/MCParser/ELFAsmParser.cpp | 32 | ||||
| -rw-r--r-- | llvm/test/MC/ELF/ident.s | 17 |
2 files changed, 49 insertions, 0 deletions
diff --git a/llvm/lib/MC/MCParser/ELFAsmParser.cpp b/llvm/lib/MC/MCParser/ELFAsmParser.cpp index 1b0354a1efe..1970124b2d8 100644 --- a/llvm/lib/MC/MCParser/ELFAsmParser.cpp +++ b/llvm/lib/MC/MCParser/ELFAsmParser.cpp @@ -50,6 +50,7 @@ public: AddDirectiveHandler<&ELFAsmParser::ParseDirectiveSize>(".size"); AddDirectiveHandler<&ELFAsmParser::ParseDirectivePrevious>(".previous"); AddDirectiveHandler<&ELFAsmParser::ParseDirectiveType>(".type"); + AddDirectiveHandler<&ELFAsmParser::ParseDirectiveIdent>(".ident"); } // FIXME: Part of this logic is duplicated in the MCELFStreamer. What is @@ -114,6 +115,7 @@ public: bool ParseDirectiveSize(StringRef, SMLoc); bool ParseDirectivePrevious(StringRef, SMLoc); bool ParseDirectiveType(StringRef, SMLoc); + bool ParseDirectiveIdent(StringRef, SMLoc); private: bool ParseSectionName(StringRef &SectionName); @@ -345,6 +347,36 @@ bool ELFAsmParser::ParseDirectiveType(StringRef, SMLoc) { return false; } +/// ParseDirectiveIdent +/// ::= .ident string +bool ELFAsmParser::ParseDirectiveIdent(StringRef, SMLoc) { + if (getLexer().isNot(AsmToken::String)) + return TokError("unexpected token in '.ident' directive"); + + StringRef Data = getTok().getIdentifier(); + + Lex(); + + const MCSection *OldSection = getStreamer().getCurrentSection(); + const MCSection *Comment = + getContext().getELFSection(".comment", MCSectionELF::SHT_PROGBITS, + MCSectionELF::SHF_MERGE | + MCSectionELF::SHF_STRINGS, + SectionKind::getReadOnly(), + false, 1); + + static bool First = true; + + getStreamer().SwitchSection(Comment); + if (First) + getStreamer().EmitIntValue(0, 1); + First = false; + getStreamer().EmitBytes(Data, 0); + getStreamer().EmitIntValue(0, 1); + getStreamer().SwitchSection(OldSection); + return false; +} + namespace llvm { MCAsmParserExtension *createELFAsmParser() { diff --git a/llvm/test/MC/ELF/ident.s b/llvm/test/MC/ELF/ident.s new file mode 100644 index 00000000000..f79458f3450 --- /dev/null +++ b/llvm/test/MC/ELF/ident.s @@ -0,0 +1,17 @@ +// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s + +// CHECK: (('sh_name', 0x00000012) # '.comment' +// CHECK-NEXT: ('sh_type', 0x00000001) +// CHECK-NEXT: ('sh_flags', 0x00000030) +// CHECK-NEXT: ('sh_addr', 0x00000000) +// CHECK-NEXT: ('sh_offset', 0x00000040) +// CHECK-NEXT: ('sh_size', 0x0000000d) +// CHECK-NEXT: ('sh_link', 0x00000000) +// CHECK-NEXT: ('sh_info', 0x00000000) +// CHECK-NEXT: ('sh_addralign', 0x00000001) +// CHECK-NEXT: ('sh_entsize', 0x00000001) +// CHECK-NEXT: ('_section_data', '00666f6f 00626172 007a6564 00') + + .ident "foo" + .ident "bar" + .ident "zed" |
