1 From 4c8c4a9c3a92300e3e6500e5a278ca37514a1fdb Mon Sep 17 00:00:00 2001
2 From: Yi Fan Yu <yifan.yu@windriver.com>
3 Date: Thu, 1 Apr 2021 15:31:47 -0400
4 Subject: [PATCH] drd/tests/swapcontext: Add SIGALRM handler to avoid
7 During testing for oe-core build on QEMU,
8 SIGALRM can trigger during nanosleep.
9 This results a different stderr output than expected.
12 ==277== Process terminating with default action of signal 14 (SIGALRM)
13 ==277== at 0x36C74C3943: clock_nanosleep@@GLIBC_2.17 (clock_nanosleep.c:43)
14 ==277== by 0x36C74C8726: nanosleep (nanosleep.c:25)
17 This stacktrace printing will not occur
18 if we add a handler that simply exits.
20 https://bugs.kde.org/show_bug.cgi?id=435160
22 Signed-off-by: Yi Fan Yu <yifan.yu@windriver.com>
24 drd/tests/swapcontext.c | 5 +++++
25 drd/tests/swapcontext.stderr.exp | 4 ----
26 2 files changed, 5 insertions(+), 4 deletions(-)
28 diff --git a/drd/tests/swapcontext.c b/drd/tests/swapcontext.c
29 index 622c70bc5..2cb969a5e 100644
30 --- a/drd/tests/swapcontext.c
31 +++ b/drd/tests/swapcontext.c
32 @@ -25,6 +25,10 @@ typedef struct thread_local {
36 +static void sig_alrm_handler(int signo) {
40 static void f(void *data, int n)
42 enum { NR_SWITCHES = 200000 };
43 @@ -76,6 +80,7 @@ int main(int argc, char *argv[])
47 + signal(SIGALRM, sig_alrm_handler);
48 memset(tlocal, 0, sizeof(tlocal));
50 pthread_attr_init(&attr);
51 diff --git a/drd/tests/swapcontext.stderr.exp b/drd/tests/swapcontext.stderr.exp
52 index fcb5d5ed4..d18786f80 100644
53 --- a/drd/tests/swapcontext.stderr.exp
54 +++ b/drd/tests/swapcontext.stderr.exp
58 -Process terminating with default action of signal 14 (SIGALRM)
59 - at 0x........: swapcontext (in /...libc...)
60 - by 0x........: f (swapcontext.c:?)
62 ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)