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| author | Jonas Devlieghere <jonas@devlieghere.com> | 2018-08-08 21:16:50 +0000 |
|---|---|---|
| committer | Jonas Devlieghere <jonas@devlieghere.com> | 2018-08-08 21:16:50 +0000 |
| commit | 49ff4d904148125cad66a8df33b7033390068310 (patch) | |
| tree | a766fac650929494f517dfbf9232ac9f044073b9 /llvm/lib/MC/MCDwarf.cpp | |
| parent | 9ff024a54fefa08cb93065e25ecbb974b74bc6e4 (diff) | |
| download | llvm-49ff4d904148125cad66a8df33b7033390068310.zip llvm-49ff4d904148125cad66a8df33b7033390068310.tar.gz llvm-49ff4d904148125cad66a8df33b7033390068310.tar.bz2 | |
[DWARF] Unclamp line table version on Darwin for v5 and later.
On Darwin we pin the DWARF line tables to version 2. Stop doing so for
DWARF v5 and later.
Differential revision: https://reviews.llvm.org/D49381
llvm-svn: 339288
Diffstat (limited to 'llvm/lib/MC/MCDwarf.cpp')
| -rw-r--r-- | llvm/lib/MC/MCDwarf.cpp | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/llvm/lib/MC/MCDwarf.cpp b/llvm/lib/MC/MCDwarf.cpp index 0461c25..9574379 100644 --- a/llvm/lib/MC/MCDwarf.cpp +++ b/llvm/lib/MC/MCDwarf.cpp @@ -462,11 +462,14 @@ MCDwarfLineTableHeader::Emit(MCStreamer *MCOS, MCDwarfLineTableParams Params, emitAbsValue(*MCOS, MakeStartMinusEndExpr(*MCOS, *LineStartSym, *LineEndSym, 4), 4); - // Next 2 bytes is the Version. - // FIXME: On Darwin we still default to V2. unsigned LineTableVersion = context.getDwarfVersion(); - if (context.getObjectFileInfo()->getTargetTriple().isOSDarwin()) + + // On Darwin we default to v2 for anything before DWARF v5. + if (context.getObjectFileInfo()->getTargetTriple().isOSDarwin() && + LineTableVersion < 5) LineTableVersion = 2; + + // Next 2 bytes is the Version. MCOS->EmitIntValue(LineTableVersion, 2); // Keep track of the bytes between the very start and where the header length |