tests/Makefile.am (check_PROGRAMS): Added stack-fcall
as a new test case.
tests/strace-k.test: New test driver file.
tests/stack-fcall.c: New test target file.
Signed-off-by: Masatake YAMATO <yam...@redhat.com>
---
tests/Makefile.am | 5 +++--
tests/stack-fcall.c | 27 ++++++++++++++++++++++++++
tests/strace-k.test | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 86 insertions(+), 2 deletions(-)
create mode 100644 tests/stack-fcall.c
create mode 100755 tests/strace-k.test
diff --git a/tests/Makefile.am b/tests/Makefile.am
index c63c41f..c3291e9 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -2,7 +2,7 @@
AM_CFLAGS = $(WARN_CFLAGS)
-check_PROGRAMS = net-accept-connect set_ptracer_any sigaction uio
+check_PROGRAMS = net-accept-connect set_ptracer_any sigaction uio stack-fcall
uio_CFLAGS = $(AM_CFLAGS) -D_FILE_OFFSET_BITS=64
@@ -17,7 +17,8 @@ TESTS = \
uio.test \
detach-sleeping.test \
detach-stopped.test \
- detach-running.test
+ detach-running.test \
+ strace-k.test
net-fd.log: net.log
diff --git a/tests/stack-fcall.c b/tests/stack-fcall.c
new file mode 100644
index 0000000..3e6ffd4
--- /dev/null
+++ b/tests/stack-fcall.c
@@ -0,0 +1,27 @@
+#include <unistd.h>
+#include <sys/types.h>
+
+/* volatile is used to protect 'call' is converted to 'jump'
+ by gcc.
+
+ I cannot find the way not to apply -O0 to this program
+ in info doc of automake. */
+
+int f1(int dummy)
+{
+ static uid_t (* volatile g)(void) = getuid;
+ return g() + dummy;
+}
+
+int f0(volatile int dummy)
+{
+ static int (* volatile g) (int) = f1;
+ return g(dummy) - dummy;
+}
+
+int main(int argc, char** argv)
+{
+ static int (* volatile g) (int) = f0;
+ g(argc);
+ return 0;
+}
diff --git a/tests/strace-k.test b/tests/strace-k.test
new file mode 100755
index 0000000..3fd056e
--- /dev/null
+++ b/tests/strace-k.test
@@ -0,0 +1,56 @@
+#!/bin/sh
+
+# Ensure that strace -k works.
+
+. "${srcdir=.}/init.sh"
+
+check_prog head
+check_prog sed
+check_prog tr
+
+extract_symbols()
+{
+ local depth=$1
+ local log=$2
+ # INPUT:
+ # getuid() = 1000
+ # > /usr/lib64/libc-2.18.so(getuid+0x7) [0xbd857]
+ # > ./stack-fcall(f1+0xc) [0x55c]
+ # > ./stack-fcall(f0+0x15) [0x575]
+ # > ./stack-fcall(main+0xd) [0x45d]
+ # > /usr/lib64/libc-2.18.so(__libc_start_main+0xf5) [0x21d65]
+ # > ./stack-fcall(_start+0x29) [0x48d]
+ # +++ exited with 0 +++
+ # OUTPUT 4:
+ # getuid f1 f0 main
+
+ sed -n -e 's/^.*(\([^+]\+\)+0x[a-f0-9]\+).*/\1/p' "$log" \
+ | head -"$depth" \
+ | tr '\n' ' ' \
+ | sed -e 's/ *$//'
+}
+
+./stack-fcall ||
+ fail_ 'stack-fcall failed'
+
+$STRACE -h | grep -e '^-k' || {
+ skip_ 'stack trace function is not available'
+ exit 0
+}
+
+args="-e getuid -k ./stack-fcall"
+$STRACE $args > $LOG 2>&1 || {
+ cat $LOG
+ fail_ "$STRACE $args failed"
+}
+
+result=$(extract_symbols 4 $LOG)
+expected="getuid f1 f0 main"
+test "$result" = "$expected" || {
+ cat $LOG
+ echo "expected: \"$expected\""
+ echo "result: \"$result\""
+ fail_ "unexpected output from $STRACE $args"
+}
+
+exit 0
--
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