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| author | AKASHI Takahiro | 2014-04-30 11:51:29 +0200 |
|---|---|---|
| committer | Catalin Marinas | 2014-05-12 17:43:28 +0200 |
| commit | 449f81a4da4d99980064943d504bb19d07e86aec (patch) | |
| tree | aeeef0f1054efa57e68a7ec71c5cc614796a014a /arch/arm64/kernel/entry.S | |
| parent | arm64: debug: avoid accessing mdscr_el1 on fault paths where possible (diff) | |
| download | kernel-qcow2-linux-449f81a4da4d99980064943d504bb19d07e86aec.tar.gz kernel-qcow2-linux-449f81a4da4d99980064943d504bb19d07e86aec.tar.xz kernel-qcow2-linux-449f81a4da4d99980064943d504bb19d07e86aec.zip | |
arm64: make a single hook to syscall_trace() for all syscall features
Currently syscall_trace() is called only for ptrace.
With additional TIF_xx flags defined, it is now called in all the cases
of audit, ftrace and seccomp in addition to ptrace.
Acked-by: Richard Guy Briggs <rgb@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/entry.S')
| -rw-r--r-- | arch/arm64/kernel/entry.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index e8b23a3b68d0..be95f3544ce4 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -610,8 +610,9 @@ el0_svc_naked: // compat entry point stp x0, scno, [sp, #S_ORIG_X0] // save the original x0 and syscall number enable_dbg_and_irq - ldr x16, [tsk, #TI_FLAGS] // check for syscall tracing - tbnz x16, #TIF_SYSCALL_TRACE, __sys_trace // are we tracing syscalls? + ldr x16, [tsk, #TI_FLAGS] // check for syscall hooks + tst x16, #_TIF_SYSCALL_WORK + b.ne __sys_trace adr lr, ret_fast_syscall // return address cmp scno, sc_nr // check upper syscall limit b.hs ni_sys |