Add support for .ident.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117389 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/ELFAsmParser.cpp b/lib/MC/MCParser/ELFAsmParser.cpp
index 1b0354a..1970124 100644
--- a/lib/MC/MCParser/ELFAsmParser.cpp
+++ b/lib/MC/MCParser/ELFAsmParser.cpp
@@ -50,6 +50,7 @@
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 @@
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 @@
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/test/MC/ELF/ident.s b/test/MC/ELF/ident.s
new file mode 100644
index 0000000..f79458f
--- /dev/null
+++ b/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"