[thirdparty/glibc.git] / elf / tst-execstack-needed.c

/* Test program for making nonexecutable stacks executable
   on DT_NEEDED load of a DSO that requires executable stacks.  */

#include <dlfcn.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <error.h>

extern void tryme (void);	/* from tst-execstack-mod.so */

static void deeper (void (*f) (void));

static int
do_test (void)
{
  tryme ();

  /* Test that growing the stack region gets new executable pages too.  */
  deeper (&tryme);

  return 0;
}

static void
deeper (void (*f) (void))
{
  char stack[1100 * 1024];
  explicit_bzero (stack, sizeof stack);
  (*f) ();
  memfrob (stack, sizeof stack);
}

#include <support/test-driver.c>
Commit	Line	Data
2abf9ff1 RM	1	/* Test program for making nonexecutable stacks executable
	2	on DT_NEEDED load of a DSO that requires executable stacks. */
	3
	4	#include <dlfcn.h>
	5	#include <stdio.h>
	6	#include <string.h>
	7	#include <unistd.h>
	8	#include <error.h>
	9
	10	extern void tryme (void); /* from tst-execstack-mod.so */
	11
	12	static void deeper (void (*f) (void));
	13
	14	static int
	15	do_test (void)
	16	{
	17	tryme ();
	18
	19	/* Test that growing the stack region gets new executable pages too. */
	20	deeper (&tryme);
	21
	22	return 0;
	23	}
	24
	25	static void
	26	deeper (void (*f) (void))
	27	{
	28	char stack[1100 * 1024];
2c6cabb3	29	explicit_bzero (stack, sizeof stack);
2abf9ff1 RM	30	(*f) ();
	31	memfrob (stack, sizeof stack);
	32	}
	33
36fe25fd	34	#include <support/test-driver.c>