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tests: thread_stack: show carveout, unused space

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Currently for informational purposes, although we do check that
the carveout is smaller than the stack_size.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-04-26 14:55:27 -07:00 • committed by Anas Nashif
commit c7f33a7759
1 changed files with 7 additions and 7 deletions
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14
tests/kernel/threads/thread_stack/src/main.c
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@ -60,7 +60,7 @@ static inline int z_vrfy_check_perms(void *addr, size_t size, int write)
void stack_buffer_scenarios(k_thread_stack_t *stack_obj, size_t obj_size) void stack_buffer_scenarios(k_thread_stack_t *stack_obj, size_t obj_size)
{ {
size_t stack_size, unused; size_t stack_size, unused, carveout;
uint8_t val; uint8_t val;
char *stack_start, *stack_ptr, *stack_end, *obj_start, *obj_end; char *stack_start, *stack_ptr, *stack_end, *obj_start, *obj_end;
volatile char *pos; volatile char *pos;
@ -148,12 +148,12 @@ void stack_buffer_scenarios(k_thread_stack_t *stack_obj, size_t obj_size)
stack_size); stack_size);
} }
#endif #endif
carveout = stack_start - Z_THREAD_STACK_BUFFER(stack_obj);
/* This API is being removed just whine about it for now */ printk(" - Carved-out space in buffer: %zu\n", carveout);
if (Z_THREAD_STACK_BUFFER(stack_obj) != stack_start) { zassert_true(carveout < stack_size,
printk("WARNING: Z_THREAD_STACK_BUFFER() reports %p\n", "Suspicious carve-out space reported");
Z_THREAD_STACK_BUFFER(stack_obj)); /* Generally 0 unless this is a stack array */
} printk(" - Unused object space: %zu\n", obj_end - stack_end);
ret = k_thread_stack_space_get(k_current_get(), &unused); ret = k_thread_stack_space_get(k_current_get(), &unused);
if (!is_usermode && IS_ENABLED(CONFIG_NO_UNUSED_STACK_INSPECTION)) { if (!is_usermode && IS_ENABLED(CONFIG_NO_UNUSED_STACK_INSPECTION)) {