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Diffstat (limited to 'arch/s390/kernel/traps.c')
-rw-r--r--arch/s390/kernel/traps.c36
1 files changed, 21 insertions, 15 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index a65d2e82f61d..e9372c77cced 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -18,7 +18,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
-#include <linux/tracehook.h>
+#include <linux/ptrace.h>
#include <linux/timer.h>
#include <linux/mm.h>
#include <linux/smp.h>
@@ -43,14 +43,10 @@
#include <asm/debug.h>
#include "entry.h"
-pgm_check_handler_t *pgm_check_table[128];
+void (*pgm_check_table[128])(struct pt_regs *, long, unsigned long);
int show_unhandled_signals;
-extern pgm_check_handler_t do_protection_exception;
-extern pgm_check_handler_t do_dat_exception;
-extern pgm_check_handler_t do_asce_exception;
-
#define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
#ifndef CONFIG_64BIT
@@ -329,10 +325,17 @@ static inline void __user *get_psw_address(struct pt_regs *regs,
void __kprobes do_per_trap(struct pt_regs *regs)
{
+ siginfo_t info;
+
if (notify_die(DIE_SSTEP, "sstep", regs, 0, 0, SIGTRAP) == NOTIFY_STOP)
return;
- if (tracehook_consider_fatal_signal(current, SIGTRAP))
- force_sig(SIGTRAP, current);
+ if (!current->ptrace)
+ return;
+ info.si_signo = SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TRAP_HWBKPT;
+ info.si_addr = (void *) current->thread.per_event.address;
+ force_sig_info(SIGTRAP, &info, current);
}
static void default_trap_handler(struct pt_regs *regs, long pgm_int_code,
@@ -425,9 +428,13 @@ static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
return;
if (*((__u16 *) opcode) == S390_BREAKPOINT_U16) {
- if (tracehook_consider_fatal_signal(current, SIGTRAP))
- force_sig(SIGTRAP, current);
- else
+ if (current->ptrace) {
+ info.si_signo = SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TRAP_BRKPT;
+ info.si_addr = location;
+ force_sig_info(SIGTRAP, &info, current);
+ } else
signal = SIGILL;
#ifdef CONFIG_MATHEMU
} else if (opcode[0] == 0xb3) {
@@ -489,9 +496,8 @@ static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
#ifdef CONFIG_MATHEMU
-asmlinkage void specification_exception(struct pt_regs *regs,
- long pgm_int_code,
- unsigned long trans_exc_code)
+void specification_exception(struct pt_regs *regs, long pgm_int_code,
+ unsigned long trans_exc_code)
{
__u8 opcode[6];
__u16 __user *location = NULL;
@@ -648,7 +654,7 @@ static void space_switch_exception(struct pt_regs *regs, long pgm_int_code,
do_trap(pgm_int_code, SIGILL, "space switch event", regs, &info);
}
-asmlinkage void __kprobes kernel_stack_overflow(struct pt_regs * regs)
+void __kprobes kernel_stack_overflow(struct pt_regs * regs)
{
bust_spinlocks(1);
printk("Kernel stack overflow.\n");