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[ELF][gcc compatibility]: support section names with special characters (e.g. "/")

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Adding support for section names with special characters in them (e.g. "/").
GCC successfully compiles such section names.
This also fixes PR24520.

Differential Revision: http://reviews.llvm.org/D15678

llvm-svn: 264038
This commit is contained in:
Marina Yatsina 2016-03-22 11:23:15 +00:00
parent 160ac40f92
commit 21a35dfebb
2 changed files with 13 additions and 8 deletions
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17
lib/MC/MCParser/ELFAsmParser.cpp
View File

@ -229,22 +229,23 @@ bool ELFAsmParser::ParseSectionName(StringRef &SectionName) {
}
for (;;) {
unsigned CurSize;
SMLoc PrevLoc = getLexer().getLoc();
if (getLexer().is(AsmToken::Minus)) {
CurSize = 1;
Lex(); // Consume the "-".
} else if (getLexer().is(AsmToken::String)) {
if (getLexer().is(AsmToken::Comma) ||
getLexer().is(AsmToken::EndOfStatement))
break;
unsigned CurSize;
if (getLexer().is(AsmToken::String)) {
CurSize = getTok().getIdentifier().size() + 2;
Lex();
} else if (getLexer().is(AsmToken::Identifier)) {
CurSize = getTok().getIdentifier().size();
Lex();
} else {
break;
CurSize = getTok().getString().size();
Lex();
}
Size += CurSize;
SectionName = StringRef(FirstLoc.getPointer(), Size);

4
test/MC/ELF/section.s
View File

@ -6,11 +6,15 @@
.section .note.GNU-stack2,"",%progbits
.section .note.GNU-,"",@progbits
.section -.note.GNU,"","progbits"
.section src/stack.c,"",@progbits
.section ~!@$%^&*()_-+={[}]|\\:<>,"",@progbits
// CHECK: Name: .note.GNU-stack
// CHECK: Name: .note.GNU-stack2
// CHECK: Name: .note.GNU-
// CHECK: Name: -.note.GNU
// CHECK: Name: src/stack.c
// CHECK: Name: ~!@$%^&*()_-+={[}]|\\:<>
// Test that the defaults are used