Hi,
On AlmaLinux 8.7, make kselftest-all fails at memfd/memfd_test.c:
make[2]: Entering directory '/home/marvin/linux/kernel/linux_torvalds/tools/testing/selftests/memfd'
gcc -D_FILE_OFFSET_BITS=64 -isystem /home/marvin/linux/kernel/linux_torvalds/usr/include memfd_test.c common.c -o
/home/marvin/linux/kernel/linux_torvalds/tools/testing/selftests/memfd/memfd_test
memfd_test.c: In function ‘test_seal_future_write’:
memfd_test.c:916:27: error: ‘F_SEAL_FUTURE_WRITE’ undeclared (first use in this function); did you mean ‘F_SEAL_WRITE’?
mfd_assert_add_seals(fd, F_SEAL_FUTURE_WRITE);
^~~~~~~~~~~~~~~~~~~
F_SEAL_WRITE
memfd_test.c:916:27: note: each undeclared identifier is reported only once for each function it appears in
memfd_test.c: In function ‘test_exec_seal’:
memfd_test.c:36:7: error: ‘F_SEAL_FUTURE_WRITE’ undeclared (first use in this function); did you mean ‘F_SEAL_WRITE’?
F_SEAL_FUTURE_WRITE | \
^~~~~~~~~~~~~~~~~~~
memfd_test.c:1058:27: note: in expansion of macro ‘F_WX_SEALS’
mfd_assert_has_seals(fd, F_WX_SEALS);
^~~~~~~~~~
make[2]: *** [../lib.mk:147: /home/marvin/linux/kernel/linux_torvalds/tools/testing/selftests/memfd/memfd_test] Error 1
make[2]: Leaving directory '/home/marvin/linux/kernel/linux_torvalds/tools/testing/selftests/memfd'
Apparently, the include file include/uapi/linux/fcntl.h defines this
F_SEAL_FUTURE_WRITE as 0x0010:
include/uapi/linux/fcntl.h:45:#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
This patch fixed the issue:
---
tools/testing/selftests/memfd/memfd_test.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index dba0e8ba002f..868f17c02e32 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -28,7 +28,13 @@
#define MFD_DEF_SIZE 8192
#define STACK_SIZE 65536
-#define F_SEAL_EXEC 0x0020
+#ifndef F_SEAL_FUTURE_WRITE
+#define F_SEAL_FUTURE_WRITE 0x0010
+#endif
+
+#ifndef F_SEAL_EXEC
+#define F_SEAL_EXEC 0x0020
+#endif
#define F_WX_SEALS (F_SEAL_SHRINK | \
F_SEAL_GROW | \
Hope this helps.
Best regards,
Mirsad
--
Mirsad Goran Todorovac
Sistem inženjer
Grafički fakultet | Akademija likovnih umjetnosti
Sveučilište u Zagrebu
System engineer
Faculty of Graphic Arts | Academy of Fine Arts
University of Zagreb, Republic of Croatia