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| author |   Ian Rogers <irogers@google.com> | 2023-03-10 22:57:48 -0800 |
|---|---|---|
| committer |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-03-14 08:29:46 -0300 |
| commit | 4c72e2b35afc414140a59fb3c06ebc54e506c245 (patch) | |
| tree | 20656d453ba18fd2e4f2be9909fd1a00f03ce09f /tools/build | |
| parent | perf build: Make binutil libraries opt in (diff) | |
| download | wireguard-linux-4c72e2b35afc414140a59fb3c06ebc54e506c245.tar.xz wireguard-linux-4c72e2b35afc414140a59fb3c06ebc54e506c245.zip | |
tools build: Add feature test for abi::__cxa_demangle
cxxabi.h is part of libsdtc++ and LLVM's libcxx, providing
abi::__cxa_demangle a portable C++ demangler. Add a feature test to
detect that the function is available.
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/build')
| -rw-r--r-- | tools/build/Makefile.feature | 1 | ||||
| -rw-r--r-- | tools/build/feature/Makefile | 4 | ||||
| -rw-r--r-- | tools/build/feature/test-cxa-demangle.cpp | 17 |
3 files changed, 22 insertions, 0 deletions
diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature index 38f8851bd7cb..214622d7537c 100644 --- a/tools/build/Makefile.feature +++ b/tools/build/Makefile.feature @@ -80,6 +80,7 @@ FEATURE_TESTS_EXTRA := \ compile-32 \ compile-x32 \ cplus-demangle \ + cxa-demangle \ gtk2 \ gtk2-infobar \ hello \ diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile index dc9323e01e42..0a3b9281f8b0 100644 --- a/tools/build/feature/Makefile +++ b/tools/build/feature/Makefile @@ -23,6 +23,7 @@ FILES= \ test-libbfd-liberty.bin \ test-libbfd-liberty-z.bin \ test-cplus-demangle.bin \ + test-cxa-demangle.bin \ test-libcap.bin \ test-libelf.bin \ test-libelf-getphdrnum.bin \ @@ -262,6 +263,9 @@ $(OUTPUT)test-libbfd-liberty-z.bin: $(OUTPUT)test-cplus-demangle.bin: $(BUILD) -liberty +$(OUTPUT)test-cxa-demangle.bin: + $(BUILDXX) + $(OUTPUT)test-backtrace.bin: $(BUILD) diff --git a/tools/build/feature/test-cxa-demangle.cpp b/tools/build/feature/test-cxa-demangle.cpp new file mode 100644 index 000000000000..a3e712f65c37 --- /dev/null +++ b/tools/build/feature/test-cxa-demangle.cpp @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdio.h> +#include <stdlib.h> +#include <cxxabi.h> + +int main(void) +{ + size_t len = 256; + char *output = (char*)malloc(len); + int status; + + output = abi::__cxa_demangle("FieldName__9ClassNameFd", output, &len, &status); + + printf("demangled symbol: {%s}\n", output); + + return 0; +} |