diff options
Diffstat (limited to 'arch/arm/kernel/ptrace.c')
| -rw-r--r-- | arch/arm/kernel/ptrace.c | 31 |
1 files changed, 23 insertions, 8 deletions
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 483727ad6892..ede6443c34d9 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -23,6 +23,7 @@ #include <linux/perf_event.h> #include <linux/hw_breakpoint.h> #include <linux/regset.h> +#include <linux/audit.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -699,10 +700,13 @@ static int vfp_set(struct task_struct *target, { int ret; struct thread_info *thread = task_thread_info(target); - struct vfp_hard_struct new_vfp = thread->vfpstate.hard; + struct vfp_hard_struct new_vfp; const size_t user_fpregs_offset = offsetof(struct user_vfp, fpregs); const size_t user_fpscr_offset = offsetof(struct user_vfp, fpscr); + vfp_sync_hwstate(thread); + new_vfp = thread->vfpstate.hard; + ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &new_vfp.fpregs, user_fpregs_offset, @@ -723,9 +727,8 @@ static int vfp_set(struct task_struct *target, if (ret) return ret; - vfp_sync_hwstate(thread); - thread->vfpstate.hard = new_vfp; vfp_flush_hwstate(thread); + thread->vfpstate.hard = new_vfp; return 0; } @@ -902,15 +905,16 @@ long arch_ptrace(struct task_struct *child, long request, return ret; } +#ifdef __ARMEB__ +#define AUDIT_ARCH_NR AUDIT_ARCH_ARMEB +#else +#define AUDIT_ARCH_NR AUDIT_ARCH_ARM +#endif + asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) { unsigned long ip; - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return scno; - if (!(current->ptrace & PT_PTRACED)) - return scno; - /* * Save IP. IP is used to denote syscall entry/exit: * IP = 0 -> entry, = 1 -> exit @@ -918,6 +922,17 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) ip = regs->ARM_ip; regs->ARM_ip = why; + if (!ip) + audit_syscall_exit(regs); + else + audit_syscall_entry(AUDIT_ARCH_NR, scno, regs->ARM_r0, + regs->ARM_r1, regs->ARM_r2, regs->ARM_r3); + + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + return scno; + if (!(current->ptrace & PT_PTRACED)) + return scno; + current_thread_info()->syscall = scno; /* the 0x80 provides a way for the tracing parent to distinguish |