tests: parametrize strace-k.test

Prepare for the check of strace -k symbol names demangling.

* tests/strace-k.test: Parametrize $test_prog and $expected.
* tests/stack-fcall.h: New file.
* tests/stack-fcall.c: Include "stack-fcall.h"
* tests/stack-fcall-0.c: Likewise.
* tests/stack-fcall-1.c: Likewise.
* tests/stack-fcall-2.c: Likewise.
* tests/stack-fcall-3.c: Likewise.
* tests/Makefile.am (EXTRA_DIST): Add stack-fcall.h.

tests/Makefile.am

@@ -363,6 +363,7 @@ EXTRA_DIST = \
 	setugid.c \
 	sigaltstack.expected \
 	sockname.c \
+	stack-fcall.h \
 	strace-C.expected \
 	strace-E.expected \
 	strace-T.expected \

tests/stack-fcall-0.c

@@ -1,4 +1,4 @@
-int f1(int i);
+#include "stack-fcall.h"
 
 int f0(int i)
 {

tests/stack-fcall-1.c

@@ -1,4 +1,4 @@
-int f2(int i);
+#include "stack-fcall.h"
 
 int f1(int i)
 {

tests/stack-fcall-2.c

@@ -1,4 +1,4 @@
-int f3(int i);
+#include "stack-fcall.h"
 
 int f2(int i)
 {

tests/stack-fcall-3.c

@@ -1,4 +1,5 @@
 #include <unistd.h>
+#include "stack-fcall.h"
 
 int f3(int i)
 {

tests/stack-fcall.c

@@ -1,4 +1,4 @@
-int f0(int i);
+#include "stack-fcall.h"
 
 int main(int argc, char **argv)
 {

tests/stack-fcall.h

@@ -0,0 +1,4 @@
+int f0(int i);
+int f1(int i);
+int f2(int i);
+int f3(int i);

tests/strace-k.test

@@ -38,10 +38,12 @@
 check_prog sed
 check_prog tr
 
-run_prog ../stack-fcall
+: ${test_prog=../stack-fcall}
+: ${expected='getpid f3 f2 f1 f0 main '}
+
+run_prog "$test_prog"
 run_strace -e getpid -k $args
 
-expected='getpid f3 f2 f1 f0 main '
 result=$(sed -r -n '1,/\(main\+0x[a-f0-9]+\) .*/ s/^.*\(([^+]+)\+0x[a-f0-9]+\) .*/\1/p' "$LOG" |
 	tr '\n' ' ')
 
@@ -50,5 +52,3 @@ test "$result" = "$expected" || {
 	echo "result: \"$result\""
 	dump_log_and_fail_with "$STRACE $args output mismatch"
 }
-
-exit 0