MIPS: ptrace: Use tracehook helpers. (bc3d22c1) · Commits · e / devices / android_kernel_xiaomi_markw

arch/mips/kernel/ptrace.c

+5 −41

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@
		#include <linux/smp.h>
		#include <linux/user.h>
		#include <linux/security.h>
		#include <linux/tracehook.h>
		#include <linux/audit.h>
		#include <linux/seccomp.h>

		@@ -540,28 +541,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
		/* do the secure computing check first */
		secure_computing_strict(regs->regs[2]);

		if (!(current->ptrace & PT_PTRACED))
		goto out;

		if (!test_thread_flag(TIF_SYSCALL_TRACE))
		goto out;

		/* The 0x80 provides a way for the tracing parent to distinguish
		between a syscall stop and SIGTRAP delivery */
		ptrace_notify(SIGTRAP \| ((current->ptrace & PT_TRACESYSGOOD) ?
		0x80 : 0));

		/*
		* this isn't the same as continuing with a signal, but it will do
		* for normal use. strace only continues with a signal if the
		* stopping signal is not SIGTRAP. -brl
		*/
		if (current->exit_code) {
		send_sig(current->exit_code, current, 1);
		current->exit_code = 0;
		}
		if (test_thread_flag(TIF_SYSCALL_TRACE))
		ptrace_report_syscall(regs);

		out:
		audit_syscall_entry(audit_arch(), regs->regs[2],
		regs->regs[4], regs->regs[5],
		regs->regs[6], regs->regs[7]);
		@@ -582,26 +564,8 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)

		audit_syscall_exit(regs);

		if (!(current->ptrace & PT_PTRACED))
		return;

		if (!test_thread_flag(TIF_SYSCALL_TRACE))
		return;

		/* The 0x80 provides a way for the tracing parent to distinguish
		between a syscall stop and SIGTRAP delivery */
		ptrace_notify(SIGTRAP \| ((current->ptrace & PT_TRACESYSGOOD) ?
		0x80 : 0));

		/*
		* this isn't the same as continuing with a signal, but it will do
		* for normal use. strace only continues with a signal if the
		* stopping signal is not SIGTRAP. -brl
		*/
		if (current->exit_code) {
		send_sig(current->exit_code, current, 1);
		current->exit_code = 0;
		}
		if (test_thread_flag(TIF_SYSCALL_TRACE))
		tracehook_report_syscall_exit(regs, 0);

		user_enter();
		}