diff options
Diffstat (limited to '')
| -rw-r--r-- | test.c | 34 |
1 files changed, 19 insertions, 15 deletions
@@ -10,17 +10,17 @@ char *argv0 = (char []){"<test>"}; -size_t alloc_fail_in = 0; -int exit_real = 0; -int exit_ok = 0; -int exit_status; +volatile size_t alloc_fail_in = 0; +volatile int exit_real = 0; +volatile int exit_ok = 0; +volatile int exit_status; jmp_buf exit_jmp; -char stderr_buf[8 << 10]; -size_t stderr_n = 0; -int stderr_real = 0; -int stderr_ok = 0; +volatile char stderr_buf[8 << 10]; +volatile size_t stderr_n = 0; +volatile int stderr_real = 0; +volatile int stderr_ok = 0; -static int custom_malloc = 0; +static volatile int custom_malloc = 0; size_t @@ -72,7 +72,7 @@ void * calloc(size_t nelem, size_t elsize) { struct allocinfo *info; - void *ret; + void *volatile ret; assert(nelem && elsize); /* unspecified behaviour otherwise */ if (nelem > SIZE_MAX / elsize) { errno = ENOMEM; @@ -92,7 +92,7 @@ void * realloc(void *ptr, size_t size) { struct allocinfo *info; - void *ret; + void *volatile ret; size_t n; assert(size); /* unspecified behaviour otherwise */ if (!ptr) @@ -113,7 +113,7 @@ void * memalign(size_t alignment, size_t size) { struct allocinfo *info; - void *ptr; + void *volatile ptr; size_t n; uintptr_t off; @@ -166,7 +166,7 @@ int posix_memalign(void **memptr, size_t alignment, size_t size) { int ret, saved_errno = errno; - void **volatile ptrp = memptr; + void *volatile *volatile ptrp = memptr; assert(!(alignment % sizeof(void *))); assert(ptrp); *memptr = memalign(alignment, size); @@ -264,6 +264,7 @@ fprintf(FILE *restrict stream, const char *restrict format, ...) int vfprintf(FILE *restrict stream, const char *restrict format, va_list ap) { + size_t old_alloc_fail_in = alloc_fail_in; va_list ap2; int r; char *buf; @@ -275,17 +276,20 @@ vfprintf(FILE *restrict stream, const char *restrict format, va_list ap) if (r >= 0) { n = (size_t)r; - buf = alloca(n + 1); + alloc_fail_in = 0; + assert((buf = malloc(n + 1))); n = vsnprintf(buf, n + 1, format, ap); if (fileno(stream) != STDERR_FILENO || stderr_real) { fwrite(buf, 1, n, stream); } else { assert(stderr_ok); assert(stderr_n + n <= sizeof(stderr_buf)); - memcpy(&stderr_buf[stderr_n], buf, n); + memcpy((char *)(void *)(&stderr_buf[stderr_n]), buf, n); stderr_n += n; } + free(buf); } + alloc_fail_in = old_alloc_fail_in; return r; } |