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Diffstat (limited to 'arch/x86/kernel/dumpstack_64.c')
-rw-r--r--arch/x86/kernel/dumpstack_64.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index a071e6be177e..cfec478a4e42 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -10,26 +10,28 @@
10#include <linux/module.h> 10#include <linux/module.h>
11#include <linux/ptrace.h> 11#include <linux/ptrace.h>
12#include <linux/kexec.h> 12#include <linux/kexec.h>
13#include <linux/sysfs.h>
13#include <linux/bug.h> 14#include <linux/bug.h>
14#include <linux/nmi.h> 15#include <linux/nmi.h>
15#include <linux/sysfs.h>
16 16
17#include <asm/stacktrace.h> 17#include <asm/stacktrace.h>
18 18
19#include "dumpstack.h" 19#include "dumpstack.h"
20 20
21#define N_EXCEPTION_STACKS_END \
22 (N_EXCEPTION_STACKS + DEBUG_STKSZ/EXCEPTION_STKSZ - 2)
21 23
22static char x86_stack_ids[][8] = { 24static char x86_stack_ids[][8] = {
23 [DEBUG_STACK - 1] = "#DB", 25 [ DEBUG_STACK-1 ] = "#DB",
24 [NMI_STACK - 1] = "NMI", 26 [ NMI_STACK-1 ] = "NMI",
25 [DOUBLEFAULT_STACK - 1] = "#DF", 27 [ DOUBLEFAULT_STACK-1 ] = "#DF",
26 [STACKFAULT_STACK - 1] = "#SS", 28 [ STACKFAULT_STACK-1 ] = "#SS",
27 [MCE_STACK - 1] = "#MC", 29 [ MCE_STACK-1 ] = "#MC",
28#if DEBUG_STKSZ > EXCEPTION_STKSZ 30#if DEBUG_STKSZ > EXCEPTION_STKSZ
29 [N_EXCEPTION_STACKS ... 31 [ N_EXCEPTION_STACKS ...
30 N_EXCEPTION_STACKS + DEBUG_STKSZ / EXCEPTION_STKSZ - 2] = "#DB[?]" 32 N_EXCEPTION_STACKS_END ] = "#DB[?]"
31#endif 33#endif
32 }; 34};
33 35
34int x86_is_stack_id(int id, char *name) 36int x86_is_stack_id(int id, char *name)
35{ 37{
@@ -37,7 +39,7 @@ int x86_is_stack_id(int id, char *name)
37} 39}
38 40
39static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack, 41static unsigned long *in_exception_stack(unsigned cpu, unsigned long stack,
40 unsigned *usedp, char **idp) 42 unsigned *usedp, char **idp)
41{ 43{
42 unsigned k; 44 unsigned k;
43 45
@@ -202,7 +204,7 @@ EXPORT_SYMBOL(dump_trace);
202 204
203void 205void
204show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs, 206show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
205 unsigned long *sp, unsigned long bp, char *log_lvl) 207 unsigned long *sp, unsigned long bp, char *log_lvl)
206{ 208{
207 unsigned long *stack; 209 unsigned long *stack;
208 int i; 210 int i;
@@ -303,4 +305,3 @@ int is_valid_bugaddr(unsigned long ip)
303 305
304 return ud2 == 0x0b0f; 306 return ud2 == 0x0b0f;
305} 307}
306