linux-kernel - [PATCH 11/11] selftests/seccomp: Add powerpc support

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Message-Id: <1437646871-3195-11-git-send-email-mpe@ellerman.id.au>
Date:	Thu, 23 Jul 2015 20:21:11 +1000
From:	Michael Ellerman <mpe@...erman.id.au>
To:	<linuxppc-dev@...abs.org>
Cc:	<linux-kernel@...r.kernel.org>, keescook@...omium.org,
	luto@...capital.net, wad@...omium.org, strosake@...ux.vnet.ibm.com,
	bogdan.purcareata@...escale.com
Subject: [PATCH 11/11] selftests/seccomp: Add powerpc support

Wire up the syscall number and regs so the tests work on powerpc.

Acked-by: Kees Cook <keescook@...omium.org>
Signed-off-by: Michael Ellerman <mpe@...erman.id.au>
---
 tools/testing/selftests/seccomp/seccomp_bpf.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 2303a8dff9a2..a004b4cce99e 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -14,6 +14,7 @@
 #include <linux/filter.h>
 #include <sys/prctl.h>
 #include <sys/ptrace.h>
+#include <sys/types.h>
 #include <sys/user.h>
 #include <linux/prctl.h>
 #include <linux/ptrace.h>
@@ -1205,6 +1206,10 @@ TEST_F(TRACE_poke, getpid_runs_normally)
 # define ARCH_REGS	struct user_pt_regs
 # define SYSCALL_NUM	regs[8]
 # define SYSCALL_RET	regs[0]
+#elif defined(__powerpc__)
+# define ARCH_REGS	struct pt_regs
+# define SYSCALL_NUM	gpr[0]
+# define SYSCALL_RET	gpr[3]
 #else
 # error "Do not know how to find your architecture's registers and syscalls"
 #endif
@@ -1238,7 +1243,7 @@ void change_syscall(struct __test_metadata *_metadata,
 	ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov);
 	EXPECT_EQ(0, ret);
 
-#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
+#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__) || defined(__powerpc__)
 	{
 		regs.SYSCALL_NUM = syscall;
 	}
@@ -1402,6 +1407,8 @@ TEST_F(TRACE_syscall, syscall_dropped)
 #  define __NR_seccomp 383
 # elif defined(__aarch64__)
 #  define __NR_seccomp 277
+# elif defined(__powerpc__)
+#  define __NR_seccomp 358
 # else
 #  warning "seccomp syscall number unknown for this architecture"
 #  define __NR_seccomp 0xffff
-- 
2.1.0

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