tests: add a test for get_robust_list and set_robust_list decoding

* tests/xet_robust_list.c: New file.
* tests/xet_robust_list.test: New test.
* tests/Makefile.am (check_PROGRAMS): Add xet_robust_list.
(TESTS): Add xet_robust_list.test.
* tests/.gitignore: Add xet_robust_list.

diff --git a/tests/.gitignore b/tests/.gitignore
index f709d7f25c1c3335e170aa7cc5a2796ded863769..9cf3d9b6bcbd3de63fc8d8c5dfce72bd68eb51ce 100644 (file)
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -49,6 +49,7 @@ umovestr2
 unix-pair-send-recv
 utime
 xattr
+xet_robust_list
 *.log
 *.log.*
 *.o

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 6fa46d3acb0e57463ddb49fc963d366f069733e0..45e3ded01f48cc15cff8d8f8eb47ec5da7f17aea 100644 (file)
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -59,7 +59,9 @@ check_PROGRAMS = \
        umovestr2 \
        unix-pair-send-recv \
        utime \
-       xattr
+       xattr \
+       xet_robust_list \
+       # end of check_PROGRAMS
 
 filter_unavailable_LDADD = -lpthread
 mmap64_CFLAGS = $(AM_CFLAGS) -D_FILE_OFFSET_BITS=64
@@ -126,6 +128,7 @@ TESTS = \
        uio.test \
        utime.test \
        xattr.test \
+       xet_robust_list.test \
        count.test \
        detach-sleeping.test \
        detach-stopped.test \

diff --git a/tests/xet_robust_list.c b/tests/xet_robust_list.c
new file mode 100644 (file)
index 0000000..ddcdd50
--- /dev/null
+++ b/tests/xet_robust_list.c
@@ -0,0 +1,55 @@
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+
+#if defined __NR_get_robust_list && defined __NR_set_robust_list
+
+int
+main(void)
+{
+       const size_t page_len = sysconf(_SC_PAGESIZE);
+       const pid_t pid = getpid();
+       const long long_pid = (unsigned long) (0xdeadbeef00000000LL | pid);
+
+       void *p = mmap(NULL, page_len * 4, PROT_READ | PROT_WRITE,
+                      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+       if (p == MAP_FAILED ||
+           mprotect(p + page_len, page_len, PROT_NONE) ||
+           mprotect(p + page_len * 3, page_len, PROT_NONE))
+               return 77;
+
+       void **p_head = p + page_len - sizeof(void *);
+       size_t *p_len = p + page_len * 3 - sizeof(size_t);
+
+       if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
+               return 77;
+       printf("get_robust_list\\(%d, \\[%#lx\\], \\[%lu\\]\\) += 0\n",
+              (int) pid, (unsigned long) *p_head, (unsigned long) *p_len);
+
+       if (syscall(__NR_set_robust_list, p, *p_len))
+               return 77;
+       printf("set_robust_list\\(%#lx, %lu\\) += 0\n",
+              (unsigned long) p, (unsigned long) *p_len);
+
+       if (syscall(__NR_get_robust_list, long_pid, p_head, p_len))
+               return 77;
+       printf("get_robust_list\\(%d, \\[%#lx\\], \\[%lu\\]\\) += 0\n",
+              (int) pid, (unsigned long) *p_head, (unsigned long) *p_len);
+
+       return 0;
+}
+
+#else
+
+int
+main(void)
+{
+       return 77;
+}
+
+#endif

diff --git a/tests/xet_robust_list.test b/tests/xet_robust_list.test
new file mode 100755 (executable)
index 0000000..9568c1d
--- /dev/null
+++ b/tests/xet_robust_list.test
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# Check get_robust_list and set_robust_list syscalls decoding.
+
+. "${srcdir=.}/init.sh"
+
+run_prog > /dev/null
+OUT="$LOG.out"
+run_strace -eget_robust_list,set_robust_list $args > "$OUT"
+match_grep "$LOG" "$OUT"
+rm -f "$OUT"
+
+exit 0