diff options
author | Paul Mundt <lethal@linux-sh.org> | 2012-08-01 13:49:13 +0900 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2012-08-01 13:49:13 +0900 |
commit | 91ba548cfd5cc8ee93b9435527efb8fa4caf5c5e (patch) | |
tree | c96ed92413044a28d17783e84a8824bfd2437af1 /arch/arm/kernel/ptrace.c | |
parent | b9ccfda293ee6fca9a89a1584f0900e0627b975e (diff) | |
parent | 4dc4c51675c137c30838425ecc8d471ff5eb138b (diff) |
Merge branch 'sh/dmaengine' into sh-latest
Diffstat (limited to 'arch/arm/kernel/ptrace.c')
-rw-r--r-- | arch/arm/kernel/ptrace.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 14e38261cd31..dab711e6e1ca 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -907,16 +907,16 @@ long arch_ptrace(struct task_struct *child, long request, return ret; } -asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) +enum ptrace_syscall_dir { + PTRACE_SYSCALL_ENTER = 0, + PTRACE_SYSCALL_EXIT, +}; + +static int ptrace_syscall_trace(struct pt_regs *regs, int scno, + enum ptrace_syscall_dir dir) { unsigned long ip; - if (why) - audit_syscall_exit(regs); - else - audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, - regs->ARM_r1, regs->ARM_r2, regs->ARM_r3); - if (!test_thread_flag(TIF_SYSCALL_TRACE)) return scno; @@ -927,14 +927,28 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) * IP = 0 -> entry, =1 -> exit */ ip = regs->ARM_ip; - regs->ARM_ip = why; + regs->ARM_ip = dir; - if (why) + if (dir == PTRACE_SYSCALL_EXIT) tracehook_report_syscall_exit(regs, 0); else if (tracehook_report_syscall_entry(regs)) current_thread_info()->syscall = -1; regs->ARM_ip = ip; - return current_thread_info()->syscall; } + +asmlinkage int syscall_trace_enter(struct pt_regs *regs, int scno) +{ + int ret = ptrace_syscall_trace(regs, scno, PTRACE_SYSCALL_ENTER); + audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1, + regs->ARM_r2, regs->ARM_r3); + return ret; +} + +asmlinkage int syscall_trace_exit(struct pt_regs *regs, int scno) +{ + int ret = ptrace_syscall_trace(regs, scno, PTRACE_SYSCALL_EXIT); + audit_syscall_exit(regs); + return ret; +} |