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Commit 55f411de authored by Greg Ungerer's avatar Greg Ungerer
Browse files

m68knommu: convert to using tracehook_report_syscall_* 



Break up syscall_trace() into separate entry and exit routines that use
tracehook_report_syscall_entry() and tracehook_report_syscall_exit().

Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
parent 41a2159b

arch/m68knommu/kernel/ptrace.c

+13 −16
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 
#include <linux/ptrace.h>

#include <linux/user.h>

#include <linux/signal.h>

#include <linux/tracehook.h>



#include <asm/uaccess.h>

#include <asm/page.h>
@@ -241,21 +242,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 
	return ret;

}



asmlinkage void syscall_trace(void)

asmlinkage int syscall_trace_enter(void)

{

	if (!test_thread_flag(TIF_SYSCALL_TRACE))

		return;

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

		return;

	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;

	int ret = 0;



	if (test_thread_flag(TIF_SYSCALL_TRACE))

		ret = tracehook_report_syscall_entry(task_pt_regs(current));

	return ret;

}



asmlinkage void syscall_trace_leave(void)

{

	if (test_thread_flag(TIF_SYSCALL_TRACE))

		tracehook_report_syscall_exit(task_pt_regs(current), 0);

}

arch/m68knommu/platform/68328/entry.S

+2 −2
Original line number Diff line number Diff line
@@ -46,7 +46,7 @@ do_trace: 
	movel	#-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/

	subql	#4,%sp

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_enter

	RESTORE_SWITCH_STACK

	addql	#4,%sp

	movel	%sp@(PT_OFF_ORIG_D0),%d1
@@ -60,7 +60,7 @@ do_trace: 
1:	movel	%d0,%sp@(PT_OFF_D0)	/* save the return value */

	subql	#4,%sp			/* dummy return address */

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_leave



ret_from_signal:

	RESTORE_SWITCH_STACK

arch/m68knommu/platform/68360/entry.S

+2 −2
Original line number Diff line number Diff line
@@ -42,7 +42,7 @@ do_trace: 
	movel	#-ENOSYS,%sp@(PT_OFF_D0) /* needed for strace*/

	subql	#4,%sp

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_enter

	RESTORE_SWITCH_STACK

	addql	#4,%sp

	movel	%sp@(PT_OFF_ORIG_D0),%d1
@@ -56,7 +56,7 @@ do_trace: 
1:	movel	%d0,%sp@(PT_OFF_D0)	/* save the return value */

	subql	#4,%sp			/* dummy return address */

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_leave



ret_from_signal:

	RESTORE_SWITCH_STACK

arch/m68knommu/platform/coldfire/entry.S

+2 −2
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ ENTRY(system_call) 
	movel	%d2,PT_OFF_D0(%sp)	/* on syscall entry */

	subql	#4,%sp

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_enter

	RESTORE_SWITCH_STACK

	addql	#4,%sp

	movel	%d3,%a0
@@ -96,7 +96,7 @@ ENTRY(system_call) 
	movel	%d0,%sp@(PT_OFF_D0)		/* save the return value */

	subql	#4,%sp			/* dummy return address */

	SAVE_SWITCH_STACK

	jbsr	syscall_trace

	jbsr	syscall_trace_leave



ret_from_signal:

	RESTORE_SWITCH_STACK