diff options
Diffstat (limited to 'elf/tst-audit2.c')
-rw-r--r-- | elf/tst-audit2.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/elf/tst-audit2.c b/elf/tst-audit2.c new file mode 100644 index 0000000..fd089b6 --- /dev/null +++ b/elf/tst-audit2.c @@ -0,0 +1,50 @@ +/* Test case for early TLS initialization in dynamic linker. */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#if HAVE___THREAD +# define MAGIC1 0xabcdef72 +# define MAGIC2 0xd8675309 +static __thread unsigned int magic[] = { MAGIC1, MAGIC2 }; +#endif + +#undef calloc + +/* This calloc definition will be called by the dynamic linker itself. + We test that it has initialized our TLS block by the time it does so. */ + +void * +calloc (size_t n, size_t m) +{ +#if HAVE___THREAD + if (magic[0] != MAGIC1 || magic[1] != MAGIC2) + { + printf ("{%x, %x} != {%x, %x}\n", magic[0], magic[1], MAGIC1, MAGIC2); + abort (); + } + magic[0] = MAGIC2; + magic[1] = MAGIC1; +#endif + + n *= m; + void *ptr = malloc (n); + if (ptr != NULL) + memset (ptr, '\0', n); + return ptr; +} + +int +main (void) +{ +#if HAVE___THREAD + if (magic[1] != MAGIC1 || magic[0] != MAGIC2) + { + printf ("{%x, %x} != {%x, %x}\n", magic[0], magic[1], MAGIC2, MAGIC1); + return 1; + } +#endif + + return 0; +} |