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Add the -grecord-gcc-switches option and pass the flags down on the compile unit. 

Patch by Zhizhou Yang

llvm-svn: 299037
This commit is contained in:
Eric Christopher 2017-03-29 23:34:20 +00:00
parent 2203ee08dd
commit ca32517c3a
2 changed files with 31 additions and 4 deletions
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10
clang/lib/Driver/ToolChains/Clang.cpp
View File

@ -2728,7 +2728,8 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
DwarfVersion = getToolChain().GetDefaultDwarfVersion();
}
// We ignore flags -gstrict-dwarf and -grecord-gcc-switches for now.
// We ignore flag -gstrict-dwarf for now.
// And we handle flag -grecord-gcc-switches later with DwarfDebugFlags.
Args.ClaimAllArgs(options::OPT_g_flags_Group);
// Column info is included by default for everything except PS4 and CodeView.
@ -4321,7 +4322,12 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
// Optionally embed the -cc1 level arguments into the debug info, for build
// analysis.
if (getToolChain().UseDwarfDebugFlags()) {
// Also record command line arguments into the debug info if
// -grecord-gcc-switches options is set on.
// By default, -gno-record-gcc-switches is set on and no recording.
if (getToolChain().UseDwarfDebugFlags() ||
Args.hasFlag(options::OPT_grecord_gcc_switches,
options::OPT_gno_record_gcc_switches, false)) {
ArgStringList OriginalArgs;
for (const auto &Arg : Args)
Arg->render(Args, OriginalArgs);

25
clang/test/Driver/debug-options.c
View File

@ -117,8 +117,18 @@
// RUN: %clang -### -c -gline-tables-only -g0 %s 2>&1 \
// RUN: | FileCheck -check-prefix=GLTO_NO %s
//
// RUN: %clang -### -c -grecord-gcc-switches -gno-record-gcc-switches \
// RUN: -gstrict-dwarf -gno-strict-dwarf %s 2>&1 \
// RUN: %clang -### -c -grecord-gcc-switches %s 2>&1 \
// | FileCheck -check-prefix=GRECORD %s
// RUN: %clang -### -c -gno-record-gcc-switches %s 2>&1 \
// | FileCheck -check-prefix=GNO_RECORD %s
// RUN: %clang -### -c -grecord-gcc-switches -gno-record-gcc-switches %s 2>&1 \
// | FileCheck -check-prefix=GNO_RECORD %s/
// RUN: %clang -### -c -grecord-gcc-switches -o - %s 2>&1 \
// | FileCheck -check-prefix=GRECORD_O %s
// RUN: %clang -### -c -O3 -ffunction-sections -grecord-gcc-switches %s 2>&1 \
// | FileCheck -check-prefix=GRECORD_OPT %s
//
// RUN: %clang -### -c -gstrict-dwarf -gno-strict-dwarf %s 2>&1 \
// RUN: | FileCheck -check-prefix=GIGNORE %s
//
// RUN: %clang -### -c -ggnu-pubnames %s 2>&1 | FileCheck -check-prefix=GOPT %s
@ -194,6 +204,17 @@
// GLTO_NO: "-cc1"
// GLTO_NO-NOT: -debug-info-kind=
//
// GRECORD: "-dwarf-debug-flags"
// GRECORD: -### -c -grecord-gcc-switches
//
// GNO_RECORD-NOT: "-dwarf-debug-flags"
// GNO_RECORD-NOT: -### -c -grecord-gcc-switches
//
// GRECORD_O: "-dwarf-debug-flags"
// GRECORD_O: -### -c -grecord-gcc-switches -o -
//
// GRECORD_OPT: -### -c -O3 -ffunction-sections -grecord-gcc-switches
//
// GIGNORE-NOT: "argument unused during compilation"
//
// GOPT: -generate-gnu-dwarf-pub-sections