From: Kees Cook <keescook@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>,
Will Drewry <wad@chromium.org>, Kees Cook <keescook@chromium.org>,
linux-xtensa@linux-xtensa.org,
Michael Ellerman <mpe@ellerman.id.au>,
linux-mips@vger.kernel.org, Andy Lutomirski <luto@amacapital.net>,
Max Filippov <jcmvbkbc@gmail.com>,
linux-arm-kernel@lists.infradead.org,
linux-kselftest@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
Christian Brauner <christian@brauner.io>
Subject: [PATCH 06/15] selftests/seccomp: mips: Remove O32-specific macro
Date: Sat, 12 Sep 2020 04:08:11 -0700 [thread overview]
Message-ID: <20200912110820.597135-7-keescook@chromium.org> (raw)
In-Reply-To: <20200912110820.597135-1-keescook@chromium.org>
Instead of having the mips O32 macro special-cased, pull the logic into
the SYSCALL_NUM() macro. Additionally include the ABI headers, since
these appear to have been missing, leaving __NR_O32_Linux undefined.
Signed-off-by: Kees Cook <keescook@chromium.org>
---
tools/testing/selftests/seccomp/seccomp_bpf.c | 18 ++++++++++++------
1 file changed, 12 insertions(+), 6 deletions(-)
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index cfa606d96086..aa1c224371d1 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1756,9 +1756,19 @@ TEST_F(TRACE_poke, getpid_runs_normally)
# define SYSCALL_RET(_regs) (_regs).gprs[2]
# define SYSCALL_NUM_RET_SHARE_REG
#elif defined(__mips__)
+# include <asm/unistd_nr_n32.h>
+# include <asm/unistd_nr_n64.h>
+# include <asm/unistd_nr_o32.h>
# define ARCH_REGS struct pt_regs
-# define SYSCALL_NUM(_regs) (_regs).regs[2]
-# define SYSCALL_SYSCALL_NUM regs[4]
+# define SYSCALL_NUM(_regs) \
+ ({ \
+ typeof((_regs).regs[2]) _nr; \
+ if ((_regs).regs[2] == __NR_O32_Linux) \
+ _nr = (_regs).regs[4]; \
+ else \
+ _nr = (_regs).regs[2]; \
+ _nr; \
+ })
# define SYSCALL_NUM_SET(_regs, _nr) \
do { \
if ((_regs).regs[2] == __NR_O32_Linux) \
@@ -1838,10 +1848,6 @@ int get_syscall(struct __test_metadata *_metadata, pid_t tracee)
}
#endif
-#if defined(__mips__)
- if (SYSCALL_NUM(regs) == __NR_O32_Linux)
- return regs.SYSCALL_SYSCALL_NUM;
-#endif
return SYSCALL_NUM(regs);
}
--
2.25.1
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next prev parent reply other threads:[~2020-09-12 11:10 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-12 11:08 [PATCH 00/15] selftests/seccomp: Refactor change_syscall() Kees Cook
2020-09-12 11:08 ` [PATCH 01/15] selftests/seccomp: Refactor arch register macros to avoid xtensa special case Kees Cook
2020-09-15 15:51 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 02/15] selftests/seccomp: Provide generic syscall setting macro Kees Cook
2020-09-15 15:53 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 03/15] selftests/seccomp: mips: Define SYSCALL_NUM_SET macro Kees Cook
2020-09-15 15:55 ` Christian Brauner
2020-09-18 22:00 ` Kees Cook
2020-09-12 11:08 ` [PATCH 04/15] selftests/seccomp: arm: " Kees Cook
2020-09-15 15:56 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 05/15] selftests/seccomp: arm64: " Kees Cook
2020-09-15 15:58 ` Christian Brauner
2020-09-12 11:08 ` Kees Cook [this message]
2020-09-15 16:00 ` [PATCH 06/15] selftests/seccomp: mips: Remove O32-specific macro Christian Brauner
2020-09-12 11:08 ` [PATCH 07/15] selftests/seccomp: Remove syscall setting #ifdefs Kees Cook
2020-09-15 16:01 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 08/15] selftests/seccomp: Convert HAVE_GETREG into ARCH_GETREG/ARCH_SETREG Kees Cook
2020-09-15 16:03 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 09/15] selftests/seccomp: Convert REGSET calls " Kees Cook
2020-09-15 16:05 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 10/15] selftests/seccomp: Avoid redundant register flushes Kees Cook
2020-09-15 16:08 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 11/15] selftests/seccomp: Remove SYSCALL_NUM_RET_SHARE_REG in favor of SYSCALL_RET_SET Kees Cook
2020-09-15 16:11 ` Christian Brauner
2020-09-12 11:08 ` [PATCH 12/15] selftests/seccomp: powerpc: Fix seccomp return value testing Kees Cook
2020-09-14 3:38 ` Michael Ellerman
2020-09-12 11:08 ` [PATCH 13/15] selftests/seccomp: powerpc: Set syscall return during ptrace syscall exit Kees Cook
2020-09-14 5:47 ` Michael Ellerman
2020-09-14 20:20 ` Kees Cook
2020-09-12 11:08 ` [PATCH 14/15] selftests/clone3: Avoid OS-defined clone_args Kees Cook
2020-09-15 16:25 ` Christian Brauner
2020-09-18 22:00 ` Kees Cook
2020-09-12 11:08 ` [PATCH 15/15] selftests/seccomp: Use __NR_mknodat instead of __NR_mknod Kees Cook
2020-09-15 16:16 ` Christian Brauner
2020-09-14 12:15 ` [PATCH 00/15] selftests/seccomp: Refactor change_syscall() Michael Ellerman
2020-09-14 20:32 ` Kees Cook
2020-09-15 11:12 ` Max Filippov
2020-09-15 12:52 ` Michael Ellerman
2020-09-15 8:45 ` Max Filippov
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