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swapcontext1: test for getcontext(3) and swapcontext(3) success properly

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The beforementioned libcalls both succeed if the return codes aren't -1

MFC after:	3 days
Reported by:	Coverity
CID:		976790, 976791
This commit is contained in:
ngie 2017-01-04 08:35:46 +00:00
parent f77699107a
commit b42da810c8
1 changed files with 12 additions and 0 deletions
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12
contrib/netbsd-tests/lib/libpthread/t_swapcontext.c
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@ -30,6 +30,8 @@ __RCSID("$NetBSD");
#ifdef __FreeBSD__
#include <sys/types.h>
#include <errno.h>
#include <string.h>
#endif
#include <pthread.h>
#include <ucontext.h>
@ -80,7 +82,12 @@ threadfunc(void *arg)
oself = (void *)pthread_self();
printf("before swapcontext self = %p\n", oself);
#ifdef __FreeBSD__
ATF_REQUIRE_MSG(swapcontext(&octx, &nctx) != -1, "swapcontext failed: %s",
strerror(errno));
#else
PTHREAD_REQUIRE(swapcontext(&octx, &nctx));
#endif
/* NOTREACHED */
return NULL;
@ -111,7 +118,12 @@ ATF_TC_BODY(swapcontext1, tc)
printf("Testing if swapcontext() alters pthread_self()\n");
#ifdef __FreeBSD__
ATF_REQUIRE_MSG(getcontext(&nctx) != -1, "getcontext failed: %s",
strerror(errno));
#else
PTHREAD_REQUIRE(getcontext(&nctx));
#endif
PTHREAD_REQUIRE(pthread_create(&thread, NULL, threadfunc, NULL));
PTHREAD_REQUIRE(pthread_join(thread, NULL));
}