On Tue, Nov 17, 2020 at 11:57:20PM +0100, John Paul Adrian Glaubitz wrote:
On 11/17/20 9:56 PM, Kees Cook wrote:
It looks like the seccomp selftests were never actually built for sh. This fixes it, though I don't have an environment to do a runtime test of it yet.
Fixes: 0bb605c2c7f2b4b3 ("sh: Add SECCOMP_FILTER") Signed-off-by: Kees Cook keescook@chromium.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 7f7ecfcd66db..26c72f2b61b1 100644 --- a/tools/testing/selftests/seccomp/seccomp_bpf.c +++ b/tools/testing/selftests/seccomp/seccomp_bpf.c @@ -1804,8 +1804,8 @@ TEST_F(TRACE_poke, getpid_runs_normally) #define SYSCALL_RET(_regs) (_regs).a[(_regs).windowbase * 4 + 2] #elif defined(__sh__) # define ARCH_REGS struct pt_regs -# define SYSCALL_NUM(_regs) (_regs).gpr[3] -# define SYSCALL_RET(_regs) (_regs).gpr[0] +# define SYSCALL_NUM(_regs) (_regs).regs[3] +# define SYSCALL_RET(_regs) (_regs).regs[0] #else # error "Do not know how to find your architecture's registers and syscalls" #endif
Yes, this fix is indeed necessary. However, there is another build issue that I ran into
Okay, thanks! (I'll add a Tested-by for you...)
and I'm not sure why it happens, but commenting out "#include <linux/sched.h>" in ../clone3/clone3_selftests.h fixes it.
root@tirpitz:..selftests/seccomp> make gcc -Wl,-no-as-needed -Wall -lpthread seccomp_bpf.c /usr/src/linux-5.9.8/tools/testing/selftests/kselftest_harness.h /usr/src/linux-5.9.8/tools/testing/selftests/kselftest.h -o /usr/src/linux-5.9.8/tools/testing/selftests/seccomp/seccomp_bpf In file included from seccomp_bpf.c:55: ../clone3/clone3_selftests.h:28:8: error: redefinition of ‘struct clone_args’ 28 | struct clone_args { | ^~~~~~~~~~ In file included from ../clone3/clone3_selftests.h:8, from seccomp_bpf.c:55: /usr/include/linux/sched.h:92:8: note: originally defined here 92 | struct clone_args { | ^~~~~~~~~~ make: *** [../lib.mk:140: /usr/src/linux-5.9.8/tools/testing/selftests/seccomp/seccomp_bpf] Error 1
I think this was fixed separately: https://lore.kernel.org/lkml/160464840151.97255.15344214064240834294.sendpat...