aarch64-linux-gnu-gcc -Wl,-no-as-needed -Wall
-lpthread seccomp_bpf.c -o seccomp_bpf
seccomp_bpf.c: In function 'tracer_ptrace':
seccomp_bpf.c:1720:12: error: '__NR_open' undeclared
(first use in this function)
if (nr == __NR_open)
^~~~~~~~~
seccomp_bpf.c:1720:12: note: each undeclared identifier is reported
only once for each function it appears in
In file included from seccomp_bpf.c:48:0:
seccomp_bpf.c: In function 'TRACE_syscall_ptrace_syscall_dropped':
seccomp_bpf.c:1795:39: error: '__NR_open' undeclared
(first use in this function)
EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_open));
^
open(2) is a legacy syscall, replaced with openat(2) since 2.6.16.
Thus new architectures in the kernel, such as arm64, don't implement
these legacy syscalls.
Signed-off-by: Anders Roxell <anders.rox...@linaro.org>
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c
b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 24dbf634e2dd..0b457e8e0f0c 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1717,7 +1717,7 @@ void tracer_ptrace(struct __test_metadata *_metadata,
pid_t tracee,
if (nr == __NR_getpid)
change_syscall(_metadata, tracee, __NR_getppid);
- if (nr == __NR_open)
+ if (nr == __NR_openat)
change_syscall(_metadata, tracee, -1);
}
@@ -1792,7 +1792,7 @@ TEST_F(TRACE_syscall, ptrace_syscall_dropped)
true);
/* Tracer should skip the open syscall, resulting in EPERM. */
- EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_open));
+ EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_openat));
}
TEST_F(TRACE_syscall, syscall_allowed)
--
2.11.0
