From: Mike Frysinger <vapier@gentoo.org>
Date: Fri, 27 Feb 2015 06:39:25 +0000 (-0500)
Subject: tests/ipc_sem: detect broken kernels
X-Git-Tag: v4.10~47
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4ed340bae64c84897fa7e42f6142592ef899f0cd;p=strace

tests/ipc_sem: detect broken kernels

When running 32bit ipc tests on ppc/sparc with a 64bit kernel, the ipc
logic wrongly returns errors.  Detect that and throw an error.

* tests/ipc_sem.c: Return 99 when errno is EFAULT.
* tests/ipc_sem.test: Save output to $OUT and show it when failing.
Handle exit status 99 to throw an ERROR.
---

diff --git a/tests/ipc_sem.c b/tests/ipc_sem.c
index 115221b9..3f2fbe7b 100644
--- a/tests/ipc_sem.c
+++ b/tests/ipc_sem.c
@@ -44,6 +44,6 @@ done:
 	return rc;
 
 fail:
-	rc = 1;
+	rc = errno == EFAULT ? 99 : 1;
 	goto done;
 }
diff --git a/tests/ipc_sem.test b/tests/ipc_sem.test
index df9a9bb8..f448b66e 100755
--- a/tests/ipc_sem.test
+++ b/tests/ipc_sem.test
@@ -8,15 +8,26 @@ check_prog grep
 
 OUT="$LOG.out"
 
-./ipc_sem > /dev/null || {
-	if [ $? -eq 77 ]; then
+./ipc_sem > "$OUT" || {
+	case $? in
+	77)
+		rm -f "$OUT"
 		framework_skip_ 'ipc semget/semctl syscalls do not behave as expected'
-	else
+		;;
+	99)
+		cat "$OUT"
+		rm -f "$OUT"
+		framework_failure_ 'broken kernel detected'
+		;;
+	*)
+		cat "$OUT"
+		rm -f "$OUT"
 		fail_ 'ipc_sem failed'
-	fi
+		;;
+	esac
 }
 
-args="-eipc ./ipc_sem $f"
+args='-eipc ./ipc_sem'
 $STRACE -o "$LOG" $args > "$OUT" &&
 LC_ALL=C grep -E -x -f "$OUT" "$LOG" > /dev/null || {
 	cat "$OUT" "$LOG"