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author | Nick Lewycky <nicholas@mxc.ca> | 2011-10-17 23:05:28 +0000 |
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committer | Nick Lewycky <nicholas@mxc.ca> | 2011-10-17 23:05:28 +0000 |
commit | 44d798d9763bc32aaf49fe7c10d604845f4b6685 (patch) | |
tree | 0449634445ecb9b39e83cb399e8b97656b9f50bd /lib/MC/MCParser/AsmParser.cpp | |
parent | 3a7572ff61dbd659121b20791d67469a70e9324d (diff) | |
download | llvm-44d798d9763bc32aaf49fe7c10d604845f4b6685.tar.gz llvm-44d798d9763bc32aaf49fe7c10d604845f4b6685.tar.bz2 llvm-44d798d9763bc32aaf49fe7c10d604845f4b6685.tar.xz |
Add support for a new extension to the .file directive:
.file filenumber "directory" "filename"
This removes one join+split of the directory+filename in MC internals. Because
bitcode files have independent fields for directory and filenames in debug info,
this patch may change the .o files written by existing .bc files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142300 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/MC/MCParser/AsmParser.cpp')
-rw-r--r-- | lib/MC/MCParser/AsmParser.cpp | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp index 50fa4d4d7b..4e8e15c7d6 100644 --- a/lib/MC/MCParser/AsmParser.cpp +++ b/lib/MC/MCParser/AsmParser.cpp @@ -2303,7 +2303,8 @@ bool AsmParser::ParseDirectiveEndIf(SMLoc DirectiveLoc) { } /// ParseDirectiveFile -/// ::= .file [number] string +/// ::= .file [number] filename +/// ::= .file number directory filename bool GenericAsmParser::ParseDirectiveFile(StringRef, SMLoc DirectiveLoc) { // FIXME: I'm not sure what this is. int64_t FileNumber = -1; @@ -2319,17 +2320,31 @@ bool GenericAsmParser::ParseDirectiveFile(StringRef, SMLoc DirectiveLoc) { if (getLexer().isNot(AsmToken::String)) return TokError("unexpected token in '.file' directive"); - StringRef Filename = getTok().getString(); - Filename = Filename.substr(1, Filename.size()-2); + // Usually the directory and filename together, otherwise just the directory. + StringRef Path = getTok().getString(); + Path = Path.substr(1, Path.size()-2); Lex(); + StringRef Directory; + StringRef Filename; + if (getLexer().is(AsmToken::String)) { + if (FileNumber == -1) + return TokError("explicit path specified, but no file number"); + Filename = getTok().getString(); + Filename = Filename.substr(1, Filename.size()-2); + Directory = Path; + Lex(); + } else { + Filename = Path; + } + if (getLexer().isNot(AsmToken::EndOfStatement)) return TokError("unexpected token in '.file' directive"); if (FileNumber == -1) getStreamer().EmitFileDirective(Filename); else { - if (getStreamer().EmitDwarfFileDirective(FileNumber, Filename)) + if (getStreamer().EmitDwarfFileDirective(FileNumber, Directory, Filename)) Error(FileNumberLoc, "file number already allocated"); } |