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| author | Alexey Samsonov <samsonov@google.com> | 2012-05-04 07:39:27 +0000 |
|---|---|---|
| committer | Alexey Samsonov <samsonov@google.com> | 2012-05-04 07:39:27 +0000 |
| commit | 74a3868dbba7f8b82fd2985a009713b239d237a9 (patch) | |
| tree | a7fed5d515bab70dd166e15d5488142c1be2b18f /clang/lib/Driver/Tools.cpp | |
| parent | bdd2e34b1fcb1e69abeb075b18335a9dcefaf015 (diff) | |
| download | bcm5719-llvm-74a3868dbba7f8b82fd2985a009713b239d237a9.tar.gz bcm5719-llvm-74a3868dbba7f8b82fd2985a009713b239d237a9.zip | |
This patch adds a new Clang compiler flag "-gline-tables-only".
It reduces the amount of emitted debug information:
1) DIEs in .debug_info have types DW_TAG_compile_unit, DW_TAG_subprogram,
DW_TAG_inlined_subroutine (for opt builds) and DW_TAG_lexical_block only.
2) .debug_str contains only function names.
3) No debug data for types/namespaces/variables is emitted.
4) The data in .debug_line is enough to produce valid stack traces with
function names and line numbers.
Reviewed by Eric Christopher.
llvm-svn: 156160
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 7a9d1cf0eba..9448425a424 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -1816,6 +1816,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, if (!A->getOption().matches(options::OPT_g0)) { CmdArgs.push_back("-g"); } + if (Args.hasArg(options::OPT_gline_tables_only)) + CmdArgs.push_back("-gline-tables-only"); Args.AddAllArgs(CmdArgs, options::OPT_ffunction_sections); Args.AddAllArgs(CmdArgs, options::OPT_fdata_sections); |
