diff options
Diffstat (limited to 'arch/x86/kernel/dumpstack_32.c')
-rw-r--r-- | arch/x86/kernel/dumpstack_32.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 1bc7f75a5bda..74cc1eda384b 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c | |||
@@ -17,11 +17,12 @@ | |||
17 | #include <asm/stacktrace.h> | 17 | #include <asm/stacktrace.h> |
18 | 18 | ||
19 | 19 | ||
20 | void dump_trace(struct task_struct *task, struct pt_regs *regs, | 20 | void dump_trace(struct task_struct *task, |
21 | unsigned long *stack, unsigned long bp, | 21 | struct pt_regs *regs, unsigned long *stack, |
22 | const struct stacktrace_ops *ops, void *data) | 22 | const struct stacktrace_ops *ops, void *data) |
23 | { | 23 | { |
24 | int graph = 0; | 24 | int graph = 0; |
25 | unsigned long bp; | ||
25 | 26 | ||
26 | if (!task) | 27 | if (!task) |
27 | task = current; | 28 | task = current; |
@@ -34,18 +35,7 @@ void dump_trace(struct task_struct *task, struct pt_regs *regs, | |||
34 | stack = (unsigned long *)task->thread.sp; | 35 | stack = (unsigned long *)task->thread.sp; |
35 | } | 36 | } |
36 | 37 | ||
37 | #ifdef CONFIG_FRAME_POINTER | 38 | bp = stack_frame(task, regs); |
38 | if (!bp) { | ||
39 | if (task == current) { | ||
40 | /* Grab bp right from our regs */ | ||
41 | get_bp(bp); | ||
42 | } else { | ||
43 | /* bp is the last reg pushed by switch_to */ | ||
44 | bp = *(unsigned long *) task->thread.sp; | ||
45 | } | ||
46 | } | ||
47 | #endif | ||
48 | |||
49 | for (;;) { | 39 | for (;;) { |
50 | struct thread_info *context; | 40 | struct thread_info *context; |
51 | 41 | ||
@@ -65,7 +55,7 @@ EXPORT_SYMBOL(dump_trace); | |||
65 | 55 | ||
66 | void | 56 | void |
67 | show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, | 57 | show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, |
68 | unsigned long *sp, unsigned long bp, char *log_lvl) | 58 | unsigned long *sp, char *log_lvl) |
69 | { | 59 | { |
70 | unsigned long *stack; | 60 | unsigned long *stack; |
71 | int i; | 61 | int i; |
@@ -87,7 +77,7 @@ show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, | |||
87 | touch_nmi_watchdog(); | 77 | touch_nmi_watchdog(); |
88 | } | 78 | } |
89 | printk(KERN_CONT "\n"); | 79 | printk(KERN_CONT "\n"); |
90 | show_trace_log_lvl(task, regs, sp, bp, log_lvl); | 80 | show_trace_log_lvl(task, regs, sp, log_lvl); |
91 | } | 81 | } |
92 | 82 | ||
93 | 83 | ||
@@ -112,8 +102,7 @@ void show_registers(struct pt_regs *regs) | |||
112 | u8 *ip; | 102 | u8 *ip; |
113 | 103 | ||
114 | printk(KERN_EMERG "Stack:\n"); | 104 | printk(KERN_EMERG "Stack:\n"); |
115 | show_stack_log_lvl(NULL, regs, ®s->sp, | 105 | show_stack_log_lvl(NULL, regs, ®s->sp, KERN_EMERG); |
116 | 0, KERN_EMERG); | ||
117 | 106 | ||
118 | printk(KERN_EMERG "Code: "); | 107 | printk(KERN_EMERG "Code: "); |
119 | 108 | ||