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test/auto-pts: compile-time selection of __gcov_dump vs. __gcov_flush

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__gcov_flush is a private symbol in Clang 10 and cannot be resolved with dlsym
This commit is contained in:
Matthias Ringwald 2021-12-13 17:48:58 +01:00
parent 04dff67be0
commit 5ba066244f
2 changed files with 34 additions and 20 deletions
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17
test/auto-pts/CMakeLists.txt
View File

@ -69,6 +69,23 @@ add_compile_options(--coverage)
add_link_options( --coverage)
add_definitions( -DCOVERAGE)
# figure out how to flush gcov data, clang 10 provides __gcov_flush, while clang 13 provides __gcov_dump
message("Compiler: ${CMAKE_CXX_COMPILER_VERSION}")
if ("${CMAKE_C_COMPILER_ID}" MATCHES ".*Clang.*")
if (CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 13)
message("Using __gcov_dump")
add_definitions( -DHAVE_GCOV_DUMP)
else()
message("Using __gcov_flush")
add_definitions( -DHAVE_GCOV_FLUSH)
endif()
else()
# assume GCC
message("Using __gcov_flush")
add_definitions( -DHAVE_GCOV_FLUSH)
endif()
# create static lib
add_library(btstack STATIC ${SOURCES})

37
test/auto-pts/btpclient.c
View File

@ -125,28 +125,25 @@ static btstack_timer_source_t heartbeat;
// static bd_addr_t pts_addr = { 0x00, 0x1b, 0xdc, 0x07, 0x32, 0xef};
static bd_addr_t pts_addr = { 0x00, 0x1b, 0xdc, 0x08, 0xe2, 0x5c};
// GCOV Flush
// flush gcov data
#ifdef HAVE_GCOV_FLUSH
void __gcov_flush(void);
#endif
#ifdef HAVE_GCOV_DUMP
void __gcov_dump(void);
void __gcov_reset(void);
#endif
static void my_gcov_flush(void){
#ifdef COVERAGE
static void (*gcov_flush_fn)(void) = NULL;
if (gcov_flush_fn == NULL){
// look up __gov_flush
gcov_flush_fn = dlsym(RTLD_DEFAULT, "__gcov_flush");
if (gcov_flush_fn != NULL){
printf("Using __gcov_flush %p\n", gcov_flush_fn);
}
}
if (gcov_flush_fn == NULL){
// lookup __gov_dump
gcov_flush_fn = dlsym(RTLD_DEFAULT, "__gcov_dump");
if (gcov_flush_fn != NULL){
printf("Using __gcov_dump %p\n", gcov_flush_fn);
}
}
if (gcov_flush_fn != NULL){
// call either one
(*gcov_flush_fn)();
}
#ifdef HAVE_GCOV_DUMP
__gcov_dump();
__gcov_reset();
#elif defined(HAVE_GCOV_FLUSH)
__gcov_flush();
#else
#error "COVERAGE defined, but neither HAVE_GCOV_DUMP nor HAVE_GCOV_FLUSH"
#endif
#endif
}