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This looks dumb as fuck, but it tells static analysis tools that our memory allocation functions literally never return a null pointer

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git-svn-id: https://svn.eduke32.com/eduke32@7095 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2018-10-25 23:30:22 +00:00
parent b65120200a
commit 175ac6dc6b
2 changed files with 9 additions and 14 deletions
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19
source/build/include/compat.h
View file

@ -1174,27 +1174,24 @@ uint32_t Bgetsysmemsize(void);
extern void xalloc_set_location(int32_t line, const char *file, const char *func);
#endif
void set_memerr_handler(void (*handlerfunc)(int32_t, const char *, const char *));
void handle_memerr(void);
void *handle_memerr(void *);
static FORCE_INLINE char *xstrdup(const char *s)
{
char *ptr = Bstrdup(s);
if (ptr == NULL) handle_memerr();
return ptr;
return (ptr == NULL) ? (char *)handle_memerr(ptr) : ptr;
}
static FORCE_INLINE void *xmalloc(const bsize_t size)
{
void *ptr = Bmalloc(size);
if (ptr == NULL) handle_memerr();
return ptr;
return (ptr == NULL) ? handle_memerr(ptr) : ptr;
}
static FORCE_INLINE void *xcalloc(const bsize_t nmemb, const bsize_t size)
{
void *ptr = Bcalloc(nmemb, size);
if (ptr == NULL) handle_memerr();
return ptr;
return (ptr == NULL) ? handle_memerr(ptr) : ptr;
}
static FORCE_INLINE void *xrealloc(void * const ptr, const bsize_t size)
@ -1205,18 +1202,14 @@ static FORCE_INLINE void *xrealloc(void * const ptr, const bsize_t size)
// - ptr == NULL makes realloc() behave like malloc()
// - size == 0 make it behave like free() if ptr != NULL
// Since we want to catch an out-of-mem in the first case, this leaves:
if (newptr == NULL && size != 0)
handle_memerr();
return newptr;
return (newptr == NULL && size != 0) ? handle_memerr(ptr) : newptr;
}
#if !defined NO_ALIGNED_MALLOC
static FORCE_INLINE void *xaligned_alloc(const bsize_t alignment, const bsize_t size)
{
void *ptr = Baligned_alloc(alignment, size);
if (ptr == NULL) handle_memerr();
return ptr;
return (ptr == NULL) ? handle_memerr(ptr) : ptr;
}
#else
# define xaligned_alloc(alignment, size) xmalloc(size)

4
source/build/src/compat.cpp
View file

@ -48,8 +48,9 @@ void xalloc_set_location(int32_t line, const char *file, const char *func)
}
#endif
void handle_memerr(void)
void *handle_memerr(void *p)
{
UNREFERENCED_PARAMETER(p);
debug_break();
if (g_MemErrHandler)
@ -62,6 +63,7 @@ void handle_memerr(void)
}
Bexit(EXIT_FAILURE);
EDUKE32_UNREACHABLE_SECTION(return &handle_memerr);
}
void set_memerr_handler(void(*handlerfunc)(int32_t, const char *, const char *))