kprobes.c (5e2aa2ed08e2e280121dc7cf5609c87d464f12ef) kprobes.c (494fc42170bf0747ac28e12ef13a7d388d5ff2c7)
1/* arch/sparc64/kernel/kprobes.c
2 *
3 * Copyright (C) 2004 David S. Miller <davem@davemloft.net>
4 */
5
6#include <linux/kernel.h>
7#include <linux/kprobes.h>
8#include <linux/module.h>

--- 69 unchanged lines hidden (view full) ---

78 kcb->prev_kprobe.kp = kprobe_running();
79 kcb->prev_kprobe.status = kcb->kprobe_status;
80 kcb->prev_kprobe.orig_tnpc = kcb->kprobe_orig_tnpc;
81 kcb->prev_kprobe.orig_tstate_pil = kcb->kprobe_orig_tstate_pil;
82}
83
84static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
85{
1/* arch/sparc64/kernel/kprobes.c
2 *
3 * Copyright (C) 2004 David S. Miller <davem@davemloft.net>
4 */
5
6#include <linux/kernel.h>
7#include <linux/kprobes.h>
8#include <linux/module.h>

--- 69 unchanged lines hidden (view full) ---

78 kcb->prev_kprobe.kp = kprobe_running();
79 kcb->prev_kprobe.status = kcb->kprobe_status;
80 kcb->prev_kprobe.orig_tnpc = kcb->kprobe_orig_tnpc;
81 kcb->prev_kprobe.orig_tstate_pil = kcb->kprobe_orig_tstate_pil;
82}
83
84static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
85{
86 __get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
86 __this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);
87 kcb->kprobe_status = kcb->prev_kprobe.status;
88 kcb->kprobe_orig_tnpc = kcb->prev_kprobe.orig_tnpc;
89 kcb->kprobe_orig_tstate_pil = kcb->prev_kprobe.orig_tstate_pil;
90}
91
92static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
93 struct kprobe_ctlblk *kcb)
94{
87 kcb->kprobe_status = kcb->prev_kprobe.status;
88 kcb->kprobe_orig_tnpc = kcb->prev_kprobe.orig_tnpc;
89 kcb->kprobe_orig_tstate_pil = kcb->prev_kprobe.orig_tstate_pil;
90}
91
92static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
93 struct kprobe_ctlblk *kcb)
94{
95 __get_cpu_var(current_kprobe) = p;
95 __this_cpu_write(current_kprobe, p);
96 kcb->kprobe_orig_tnpc = regs->tnpc;
97 kcb->kprobe_orig_tstate_pil = (regs->tstate & TSTATE_PIL);
98}
99
100static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs,
101 struct kprobe_ctlblk *kcb)
102{
103 regs->tstate |= TSTATE_PIL;

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150 if (*(u32 *)addr != BREAKPOINT_INSTRUCTION) {
151 /* The breakpoint instruction was removed by
152 * another cpu right after we hit, no further
153 * handling of this interrupt is appropriate
154 */
155 ret = 1;
156 goto no_kprobe;
157 }
96 kcb->kprobe_orig_tnpc = regs->tnpc;
97 kcb->kprobe_orig_tstate_pil = (regs->tstate & TSTATE_PIL);
98}
99
100static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs,
101 struct kprobe_ctlblk *kcb)
102{
103 regs->tstate |= TSTATE_PIL;

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150 if (*(u32 *)addr != BREAKPOINT_INSTRUCTION) {
151 /* The breakpoint instruction was removed by
152 * another cpu right after we hit, no further
153 * handling of this interrupt is appropriate
154 */
155 ret = 1;
156 goto no_kprobe;
157 }
158 p = __get_cpu_var(current_kprobe);
158 p = __this_cpu_read(current_kprobe);
159 if (p->break_handler && p->break_handler(p, regs))
160 goto ss_probe;
161 }
162 goto no_kprobe;
163 }
164
165 p = get_kprobe(addr);
166 if (!p) {

--- 437 unchanged lines hidden --- 		159 if (p->break_handler && p->break_handler(p, regs))
160 goto ss_probe;
161 }
162 goto no_kprobe;
163 }
164
165 p = get_kprobe(addr);
166 if (!p) {

--- 437 unchanged lines hidden ---