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selftests/seccomp: Add powerpc support 

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

With the powerpc kernel support just merged, all tests pass on ppc64,
ppc64 (compat), ppc64le, ppc, ppc64e and ppc64e (compat).

Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Michael Ellerman 2015-07-23 20:21:11 +10:00
parent c385d0db30
commit 5d83c2b37d
1 changed files with 8 additions and 1 deletions
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9
tools/testing/selftests/seccomp/seccomp_bpf.c
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@ -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