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| author | Ian Rogers <irogers@google.com> | 2023-03-10 22:57:49 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-03-14 08:29:46 -0300 |
| commit | 3b4e4efe88f615f160a6c9319a9392d8410f742c (patch) | |
| tree | 775099f2d5a1b8f04475f8345ac5ee547129c5eb /tools/perf/Makefile.config | |
| parent | 4c72e2b35afc414140a59fb3c06ebc54e506c245 (diff) | |
| download | lwn-3b4e4efe88f615f160a6c9319a9392d8410f742c.tar.gz lwn-3b4e4efe88f615f160a6c9319a9392d8410f742c.zip | |
perf symbol: Add abi::__cxa_demangle C++ demangling support
Refactor C++ demangling out of symbol-elf into its own files similar
to other languages. Add abi::__cxa_demangle support. As the other
demanglers are not shippable with distributions, this brings back C++
demangling in a common case. It isn't perfect as the support for
optionally demangling arguments and modifiers isn't present.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andres Freund <andres@anarazel.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin Liška <mliska@suse.cz>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Pavithra Gurushankar <gpavithrasha@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Monnet <quentin@isovalent.com>
Cc: Roberto Sassu <roberto.sassu@huawei.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Tom Rix <trix@redhat.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: llvm@lists.linux.dev
Link: https://lore.kernel.org/r/20230311065753.3012826-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/Makefile.config')
| -rw-r--r-- | tools/perf/Makefile.config | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config index c4ae70c643b9..ac8a206acf87 100644 --- a/tools/perf/Makefile.config +++ b/tools/perf/Makefile.config @@ -914,6 +914,7 @@ ifdef BUILD_NONDISTRO endif CFLAGS += -DHAVE_LIBBFD_SUPPORT + CXXFLAGS += -DHAVE_LIBBFD_SUPPORT ifeq ($(feature-libbfd-buildid), 1) CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT else @@ -921,26 +922,24 @@ ifdef BUILD_NONDISTRO endif endif -ifdef NO_DEMANGLE - CFLAGS += -DNO_DEMANGLE -else +ifndef NO_DEMANGLE + $(call feature_check,cxa-demangle) + ifeq ($(feature-cxa-demangle), 1) + EXTLIBS += -lstdc++ + CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT + CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT + endif ifdef BUILD_NONDISTRO ifeq ($(filter -liberty,$(EXTLIBS)),) - ifdef HAVE_CPLUS_DEMANGLE_SUPPORT + $(call feature_check,cplus-demangle) + ifeq ($(feature-cplus-demangle), 1) EXTLIBS += -liberty - else - $(call feature_check,cplus-demangle) - ifeq ($(feature-cplus-demangle), 1) - EXTLIBS += -liberty - endif endif endif - endif - - ifneq ($(filter -liberty,$(EXTLIBS)),) - CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT - else - CFLAGS += -DNO_DEMANGLE + ifneq ($(filter -liberty,$(EXTLIBS)),) + CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT + CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT + endif endif endif |