Commit 4c72e2b3 authored by Ian Rogers's avatar Ian Rogers Committed by Arnaldo Carvalho de Melo
Browse files

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: default avatarIan 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: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent dd317df0

tools/build/Makefile.feature

+1 −0
Original line number Diff line number Diff line
@@ -80,6 +80,7 @@ FEATURE_TESTS_EXTRA := \ 
         compile-32                     \

         compile-x32                    \

         cplus-demangle                 \

         cxa-demangle                   \

         gtk2                           \

         gtk2-infobar                   \

         hello                          \

tools/build/feature/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -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)

tools/build/feature/test-cxa-demangle.cpp

0 → 100644
+17 −0
Original line number Diff line number Diff line 
// 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;

}