The patch titled
Subject: selftests/seccomp/seccomp_bpf: update for PTRACE_GET_SYSCALL_INFO
has been added to the -mm tree. Its filename is
ptrace-add-ptrace_get_syscall_info-request-fix.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ptrace-add-ptrace_get_syscall_info-request-fix.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ptrace-add-ptrace_get_syscall_info-request-fix.patch
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------------------------------------------------------
From: "Dmitry V. Levin" <ldv@xxxxxxxxxxxx>
Subject: selftests/seccomp/seccomp_bpf: update for PTRACE_GET_SYSCALL_INFO
The syscall entry/exit is now exposed via PTRACE_GETEVENTMSG,
update the test accordingly.
Link: http://lkml.kernel.org/r/20190708182904.GA12332@xxxxxxxxxxxx
Signed-off-by: Dmitry V. Levin <ldv@xxxxxxxxxxxx>
Reported-by: kernel test robot <rong.a.chen@xxxxxxxxx>
Reviewed-by: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Elvira Khabirova <lineprinter@xxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Eugene Syromyatnikov <esyr@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c~ptrace-add-ptrace_get_syscall_info-request-fix
+++ a/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1775,13 +1775,18 @@ void tracer_ptrace(struct __test_metadat
unsigned long msg;
static bool entry;
- /* Make sure we got an empty message. */
+ /*
+ * The traditional way to tell PTRACE_SYSCALL entry/exit
+ * is by counting.
+ */
+ entry = !entry;
+
+ /* Make sure we got an appropriate message. */
ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);
EXPECT_EQ(0, ret);
- EXPECT_EQ(0, msg);
+ EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
+ : PTRACE_EVENTMSG_SYSCALL_EXIT, msg);
- /* The only way to tell PTRACE_SYSCALL entry/exit is by counting. */
- entry = !entry;
if (!entry)
return;
_
Patches currently in -mm which might be from ldv@xxxxxxxxxxxx are
nds32-fix-asm-syscallh.patch
hexagon-define-syscall_get_error-and-syscall_get_return_value.patch
mips-define-syscall_get_error.patch
parisc-define-syscall_get_error.patch
powerpc-define-syscall_get_error.patch
ptrace-add-ptrace_get_syscall_info-request-fix.patch
selftests-ptrace-add-a-test-case-for-ptrace_get_syscall_info.patch
