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rseq/selftests: Fix MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ build error under other arch.

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Except arch x86, the function rseq_offset_deref_addv is not defined.
The function test_membarrier_manager_thread call rseq_offset_deref_addv
produces a build error.

The RSEQ_ARCH_HAS_OFFSET_DEREF_ADD should contain all the code
for the MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ.
If the other Arch implements this feature,
defined RSEQ_ARCH_HAS_OFFSET_DEREF_ADD in the header file
to ensure that this feature is available.

Following build errors:

param_test.c: In function ‘test_membarrier_worker_thread’:
param_test.c:1164:10: warning: implicit declaration of function ‘rseq_offset_deref_addv’
    ret = rseq_offset_deref_addv(&args->percpu_list_ptr,
          ^~~~~~~~~~~~~~~~~~~~~~
/tmp/ccMj9yHJ.o: In function `test_membarrier_worker_thread':
param_test.c:1164: undefined reference to `rseq_offset_deref_addv'
param_test.c:1164: undefined reference to `rseq_offset_deref_addv'
collect2: error: ld returned 1 exit status
make: *** [/selftests/rseq/param_test_benchmark] Error 1

Signed-off-by: Xingxing Su <suxingxing@loongson.cn>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
Xingxing Su 2020-11-25 12:04:57 +08:00 committed by Shuah Khan
parent 0477e92881
commit 6f39cecdb6
1 changed files with 2 additions and 2 deletions
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4
tools/testing/selftests/rseq/param_test.c
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@ -1133,6 +1133,8 @@ static int set_signal_handler(void)
return ret;
}
/* Test MEMBARRIER_CMD_PRIVATE_RESTART_RSEQ_ON_CPU membarrier command. */
#ifdef RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
struct test_membarrier_thread_args {
int stop;
intptr_t percpu_list_ptr;
@ -1286,8 +1288,6 @@ void *test_membarrier_manager_thread(void *arg)
return NULL;
}
/* Test MEMBARRIER_CMD_PRIVATE_RESTART_RSEQ_ON_CPU membarrier command. */
#ifdef RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
void test_membarrier(void)
{
const int num_threads = opt_threads;