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boards/native: fix crash with all-asan

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Without this change a RIOT application compiled with all-asan will
segfault as RIOT provides its own malloc by default. Add a define for
disabling custom malloc, calloc and realloc implementations and use it
when compiling with all-asan.
This commit is contained in:
Sören Tempel 2019-06-24 14:30:43 +02:00
parent be0a24e532
commit e2b8231796
2 changed files with 2 additions and 6 deletions
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2
boards/native/Makefile.include
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@ -98,7 +98,7 @@ all-cachegrind: CFLAGS += -g3
all-gprof: CFLAGS += -pg
all-gprof: LINKFLAGS += -pg
all-asan: CFLAGS += -fsanitize=address -fno-omit-frame-pointer -g3
all-asan: CFLAGS += -DNATIVE_IN_CALLOC
all-asan: CFLAGS += -DNATIVE_MEMORY
all-asan: LINKFLAGS += -fsanitize=address -fno-omit-frame-pointer -g3
INCLUDES += $(NATIVEINCLUDES)

6
cpu/native/syscalls.c
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@ -142,7 +142,7 @@ void _native_syscall_leave(void)
/* make use of TLSF if it is included, except when building with valgrind
* support, where one probably wants to make use of valgrind's memory leak
* detection abilities*/
#if !(defined MODULE_TLSF) || (defined(HAVE_VALGRIND_H))
#if (!(defined MODULE_TLSF) && !(defined NATIVE_MEMORY)) || (defined(HAVE_VALGRIND_H))
int _native_in_malloc = 0;
void *malloc(size_t size)
{
@ -176,11 +176,7 @@ void free(void *ptr)
_native_syscall_leave();
}
#ifdef NATIVE_IN_CALLOC
int _native_in_calloc = 1;
#else
int _native_in_calloc = 0;
#endif
void *calloc(size_t nmemb, size_t size)
{
/* dynamically load calloc when it's needed - this is necessary to