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/* Test case for early TLS initialization in dynamic linker. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dlfcn.h>
#define MAGIC1 0xabcdef72
#define MAGIC2 0xd8675309
static __thread unsigned int magic[] = { MAGIC1, MAGIC2 };
static __thread int calloc_called;
#undef calloc
/* This calloc definition will be called by the dynamic linker itself.
We test that interposed calloc is called by the dynamic loader, and
that TLS is fully initialized by then. */
void *
calloc (size_t n, size_t m)
{
if (!calloc_called)
{
/* Allow our calloc to be called more than once. */
calloc_called = 1;
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;
}
n *= m;
void *ptr = malloc (n);
if (ptr != NULL)
memset (ptr, '\0', n);
return ptr;
}
static int
do_test (void)
{
/* Make sure that our calloc is called from the dynamic linker at least
once. */
void *h = dlopen("$ORIGIN/tst-auditmod9b.so", RTLD_LAZY);
if (h != NULL)
dlclose (h);
if (magic[1] != MAGIC1 || magic[0] != MAGIC2)
{
printf ("{%x, %x} != {%x, %x}\n", magic[0], magic[1], MAGIC2, MAGIC1);
return 1;
}
return 0;
}
#include <support/test-driver.c>
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