memcheck/tests/linux/aligned_alloc.c

   1 #include <stdlib.h>
   2 #include <assert.h>
   3 #include <errno.h>
   4 #include "../../../config.h"
   5
   6 int main(void)
   7 {
   8 #if defined (HAVE_GNU_LIBC_C17_ALIGNED_ALLOC)
   9    char* p = NULL;
  10
  11    // zero size
  12    p = aligned_alloc(0, 8);
  13    assert(p == NULL);
  14
  15    // non multiple of alignment
  16    p = aligned_alloc(8, 25);
  17    assert(p && ((size_t)p % 8U == 0U));
  18    free(p);
  19
  20    // align not power of 2
  21    p = aligned_alloc(40, 160);
  22    assert(p == NULL);
  23    errno = 0;
  24 #endif
  25 #if defined(MUSL_LIBC)
  26    char* p = NULL;
  27
  28    // zero size
  29    p = aligned_alloc(0, 8);
  30    assert(p && ((size_t)p % 8U == 0U));
  31    free(p);
  32    // non multiple of alignment passes on FreeBSD
  33    p = aligned_alloc(8, 25);
  34    assert(p && ((size_t)p % 8U == 0U));
  35    free(p);
  36    //errno = 0;
  37    // align not power of 2
  38    p = aligned_alloc(40, 160);
  39    assert(p == NULL);
  40    errno = 0;
  41    // the test below causes a segfault with musl 1.2.2
  42    // apparently it has been fixed in 1.2.3
  43 #if 0
  44    // too big
  45    if (sizeof(size_t) == 8)
  46    {
  47       p = aligned_alloc(16, 1UL<<48);
  48    }
  49    else
  50    {
  51       p = NULL;
  52       errno = ENOMEM;
  53    }
  54    assert(p == NULL && errno == ENOMEM);
  55 #endif
  56 #endif
  57 }
  58
  59