[thirdparty/glibc.git] / elf / nextmod1.c

#include <dlfcn.h>

extern int successful_rtld_next_test (void);
extern void *failing_rtld_next_use (void);

int nextmod1_dummy_var;

int
successful_rtld_next_test (void)
{
  int (*fp) (void);

  /* Get the next function... */
  fp = (int (*) (void)) dlsym (RTLD_NEXT, __FUNCTION__);

  /* ...and simply call it.  */
  return fp ();
}


void *
failing_rtld_next_use (void)
{
  void *ret = dlsym (RTLD_NEXT, __FUNCTION__);

  /* Ensure we are not tail call optimized, because then RTLD_NEXT
     might return this function.  */
  ++nextmod1_dummy_var;
  return ret;
}
Commit	Line	Data
917fd061 UD	1	#include <dlfcn.h>
917fd061 UD	2
5c80f57c AJ	3	extern int successful_rtld_next_test (void);
	4	extern void *failing_rtld_next_use (void);
	5
e6ea9c0d UD	6	int nextmod1_dummy_var;
e6ea9c0d UD	7
917fd061 UD	8	int
	9	successful_rtld_next_test (void)
	10	{
	11	int (*fp) (void);
	12
	13	/* Get the next function... */
	14	fp = (int (*) (void)) dlsym (RTLD_NEXT, __FUNCTION__);
	15
	16	/* ...and simply call it. */
	17	return fp ();
	18	}
	19
	20
	21	void *
	22	failing_rtld_next_use (void)
	23	{
e6ea9c0d UD	24	void *ret = dlsym (RTLD_NEXT, __FUNCTION__);
	25
	26	/* Ensure we are not tail call optimized, because then RTLD_NEXT
	27	might return this function. */
	28	++nextmod1_dummy_var;
	29	return ret;
917fd061	30	}