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#include <stdlib.h>
#include <stdio.h>
extern void grt_stack_init (void);
extern void grt_stack_switch (void *from, void *to);
extern void *grt_stack_create (void (*func)(void *), void *arg);
int stack_size = 4096;
int stack_max_size = 8 * 4096;
static void *stack1;
static void *stack2;
void *grt_stack_main_stack;
void *grt_cur_proc;
static int step;
void
grt_overflow_error (void)
{
abort ();
}
void
grt_stack_error_null_access (void)
{
abort ();
}
void
grt_stack_error_memory_access (void)
{
abort ();
}
void
grt_stack_error_grow_failed (void)
{
abort ();
}
void
error (void)
{
printf ("Test failure at step %d\n", step);
fflush (stdout);
exit (1);
}
static void
func1 (void *ptr)
{
if (ptr != (void *)1)
error ();
if (step != 0)
error ();
step = 1;
grt_stack_switch (grt_stack_main_stack, stack1);
if (step != 5)
error ();
step = 6;
grt_stack_switch (grt_stack_main_stack, stack1);
if (step != 7)
error ();
step = 8;
grt_stack_switch (stack2, stack1);
if (step != 9)
error ();
step = 10;
grt_stack_switch (grt_stack_main_stack, stack1);
error ();
}
static void
func2 (void *ptr)
{
if (ptr != (void *)2)
error ();
if (step == 11)
{
step = 12;
grt_stack_switch (grt_stack_main_stack, stack2);
error ();
}
if (step != 1)
error ();
step = 2;
grt_stack_switch (grt_stack_main_stack, stack2);
if (step != 3)
error ();
step = 4;
grt_stack_switch (grt_stack_main_stack, stack2);
if (step != 8)
error ();
step = 9;
grt_stack_switch (stack1, stack2);
}
int
main (void)
{
grt_stack_init ();
stack1 = grt_stack_create (&func1, (void *)1);
stack2 = grt_stack_create (&func2, (void *)2);
step = 0;
grt_stack_switch (stack1, grt_stack_main_stack);
if (step != 1)
error ();
grt_stack_switch (stack2, grt_stack_main_stack);
if (step != 2)
error ();
step = 3;
grt_stack_switch (stack2, grt_stack_main_stack);
if (step != 4)
error ();
step = 5;
grt_stack_switch (stack1, grt_stack_main_stack);
if (step != 6)
error ();
step = 7;
grt_stack_switch (stack1, grt_stack_main_stack);
if (step != 10)
error ();
step = 11;
grt_stack_switch (stack2, grt_stack_main_stack);
if (step != 12)
error ();
printf ("Test successful\n");
return 0;
}
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