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arm: Enable support for sys_thread_busy_wait()

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It is now safe to enable sys_thread_busy_wait() for ARM as an earlier
patch has fixed the build system to link against the correct intrinsics
library.

Change-Id: Ib5ed036d996461b91f372b2b3e8f597a925d3292
Signed-off-by: Peter Mitsis <peter.mitsis@windriver.com>
This commit is contained in:
Peter Mitsis 2016-02-10 16:21:06 -05:00 • committed by Gerrit Code Review
commit 76357932d8
2 changed files with 0 additions and 22 deletions
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12
kernel/nanokernel/nano_context.c
View file

@ -94,17 +94,6 @@ int _is_thread_essential(struct tcs *pCtx)
return ((pCtx == NULL) ? _nanokernel.current : pCtx)->flags & ESSENTIAL;
}
/*
* Don't build sys_thread_busy_wait() for ARM, since intrinsics libraries in
* current Zephyr SDK use non-Thumb code that isn't supported on Cortex-M CPUs.
* For the time being any ARM-based application that attempts to use this API
* will get a link error (which is preferable to a mysterious exception).
*
* @param usec_to_wait
*
* @return N/A
*/
#ifndef CONFIG_ARM
void sys_thread_busy_wait(uint32_t usec_to_wait)
{
/* use 64-bit math to prevent overflow when multiplying */
@ -124,7 +113,6 @@ void sys_thread_busy_wait(uint32_t usec_to_wait)
}
}
}
#endif /* CONFIG_ARM */
#ifdef CONFIG_THREAD_CUSTOM_DATA

10
samples/nanokernel/test/test_context/src/context.c
View file

@ -611,7 +611,6 @@ struct timeout_order_data timeout_order_data[] = {
#define NUM_TIMEOUT_FIBERS ARRAY_SIZE(timeout_order_data)
static char __stack timeout_stacks[NUM_TIMEOUT_FIBERS][FIBER_STACKSIZE];
#ifndef CONFIG_ARM
/* a fiber busy waits, then reports through a fifo */
static void test_fiber_busy_wait(int ticks, int unused)
{
@ -639,7 +638,6 @@ static void test_fiber_busy_wait(int ticks, int unused)
nano_fiber_sem_give(&reply_timeout);
}
#endif
/* a fiber sleeps and times out, then reports through a fifo */
static void test_fiber_sleep(int timeout, int arg2)
@ -676,12 +674,6 @@ static int test_timeout(void)
int ii;
struct timeout_order_data *data;
/*
* sys_thread_busy_wait() is currently unsupported for ARM
*/
#ifndef CONFIG_ARM
/* test sys_thread_busy_wait() */
TC_PRINT("Testing sys_thread_busy_wait()\n");
@ -697,8 +689,6 @@ static int test_timeout(void)
return TC_FAIL;
}
#endif /* CONFIG_ARM */
/* test fiber_sleep() */
TC_PRINT("Testing fiber_sleep()\n");