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tests/malloc: test for correct calloc() behavior

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This commit is contained in:
Marian Buschsieweke 2021-05-04 16:54:30 +02:00
parent a9dea12eb8
commit 8c31227060
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1 changed files with 13 additions and 0 deletions
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tests/malloc/main.c
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@ -24,6 +24,8 @@
#include <string.h> #include <string.h>
#include <inttypes.h> #include <inttypes.h>
#include "test_utils/expect.h"
#ifndef CHUNK_SIZE #ifndef CHUNK_SIZE
#ifdef BOARD_NATIVE #ifdef BOARD_NATIVE
#define CHUNK_SIZE (1024 * 1024U) #define CHUNK_SIZE (1024 * 1024U)
@ -111,6 +113,17 @@ int main(void)
{ {
uint32_t allocations = 0; uint32_t allocations = 0;
/* modern compilers warn about nonsense calls to calloc, but this is exactly what we want to
* test */
#pragma GCC diagnostic push
#if !defined(__clang__) && (__GNUC__ > 6)
#pragma GCC diagnostic ignored "-Walloc-size-larger-than="
#endif
/* test if an overflow is correctly detected by calloc(): the size below overflows by 1 byte */
/* cppcheck-suppress leakReturnValNotUsed (should return NULL, so nothing to free anyway) */
expect(NULL == calloc(SIZE_MAX / 16 + 1, 16));
#pragma GCC diagnostic pop
printf("CHUNK_SIZE: %"PRIu32"\n", (uint32_t)CHUNK_SIZE); printf("CHUNK_SIZE: %"PRIu32"\n", (uint32_t)CHUNK_SIZE);
printf("NUMBER_OF_TESTS: %d\n", NUMBER_OF_TESTS); printf("NUMBER_OF_TESTS: %d\n", NUMBER_OF_TESTS);