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tests: userspace: test syscall irq context

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Interrupts should not be locked when servicing a system call,
and the kernel should not think we are in an interrupt handler
either.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2020-01-14 14:05:31 -08:00 • committed by Ioannis Glaropoulos
commit d3314851df
2 changed files with 29 additions and 1 deletions
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29
tests/kernel/mem_protect/userspace/src/main.c
View file

@ -1151,6 +1151,32 @@ void test_oops_stackcheck(void)
test_oops(K_ERR_STACK_CHK_FAIL, K_ERR_STACK_CHK_FAIL);
}
void z_impl_check_syscall_context(void)
{
int key = irq_lock();
irq_unlock(key);
/* Make sure that interrupts aren't locked when handling system calls;
* key has the previous locking state before the above irq_lock() call.
*/
zassert_true(arch_irq_unlocked(key), "irqs locked during syscall");
/* The kernel should not think we are in ISR context either */
zassert_false(k_is_in_isr(), "kernel reports irq context");
}
static inline void z_vrfy_check_syscall_context(void)
{
return z_impl_check_syscall_context();
}
#include <syscalls/check_syscall_context_mrsh.c>
void test_syscall_context(void)
{
check_syscall_context();
}
void test_main(void)
{
struct k_mem_partition *parts[] = {&part0, &part1,
@ -1213,7 +1239,8 @@ void test_main(void)
ztest_user_unit_test(test_oops_exception),
ztest_user_unit_test(test_oops_maxint),
ztest_user_unit_test(test_oops_stackcheck),
ztest_unit_test(test_object_recycle)
ztest_unit_test(test_object_recycle),
ztest_user_unit_test(test_syscall_context)
);
ztest_run_test_suite(userspace);
}

1
tests/kernel/mem_protect/userspace/src/test_syscall.h
View file

@ -10,6 +10,7 @@
__syscall void stack_info_get(char **start_addr, size_t *size);
__syscall int check_perms(void *addr, size_t size, int write);
__syscall void missing_syscall(void);
__syscall void check_syscall_context(void);
#include <syscalls/test_syscall.h>