tests: extend test coverage of setgid32 syscall

* tests/setgid32.c: New file.
* tests/setgid32.test: New test.
* tests/.gitignore: Add setgid32.
* tests/Makefile.am (check_PROGRAMS): Likewise.
(DECODER_TESTS): Add setgid32.test.

tests/.gitignore

@@ -143,6 +143,7 @@ sendfile
 sendfile64
 set_ptracer_any
 setgid
+setgid32
 sethostname
 setuid
 setuid32

tests/Makefile.am

@@ -193,6 +193,7 @@ check_PROGRAMS = \
 	sendfile64 \
 	set_ptracer_any \
 	setgid \
+	setgid32 \
 	sethostname \
 	setuid \
 	setuid32 \
@@ -403,6 +404,7 @@ DECODER_TESTS = \
 	sendfile.test \
 	sendfile64.test \
 	setgid.test \
+	setgid32.test \
 	sethostname.test \
 	setuid.test \
 	setuid32.test \

tests/setgid32.c

@@ -0,0 +1,17 @@
+#include "tests.h"
+#include <sys/syscall.h>
+
+#ifdef __NR_setgid32
+
+# define SYSCALL_NR	__NR_setgid32
+# define SYSCALL_NAME	"setgid32"
+# define UGID_TYPE	int
+# define GETUGID	getegid()
+# define CHECK_OVERFLOWUGID(arg)
+# include "setugid.c"
+
+#else
+
+SKIP_MAIN_UNDEFINED("__NR_setgid32")
+
+#endif

tests/setgid32.test

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+# Check setgid32 syscall decoding.
+
+. "${srcdir=.}/init.sh"
+run_strace_match_diff -a12