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Diffstat (limited to 'arch/i386/kernel/traps.c')
-rw-r--r--arch/i386/kernel/traps.c57
1 files changed, 39 insertions, 18 deletions
diff --git a/arch/i386/kernel/traps.c b/arch/i386/kernel/traps.c
index b9f0030a2ebb..0aaebf3e1cfa 100644
--- a/arch/i386/kernel/traps.c
+++ b/arch/i386/kernel/traps.c
@@ -112,33 +112,38 @@ static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
112 p < (void *)tinfo + THREAD_SIZE - 3; 112 p < (void *)tinfo + THREAD_SIZE - 3;
113} 113}
114 114
115static void print_addr_and_symbol(unsigned long addr, char *log_lvl)
116{
117 printk(log_lvl);
118 printk(" [<%08lx>] ", addr);
119 print_symbol("%s", addr);
120 printk("\n");
121}
122
115static inline unsigned long print_context_stack(struct thread_info *tinfo, 123static inline unsigned long print_context_stack(struct thread_info *tinfo,
116 unsigned long *stack, unsigned long ebp) 124 unsigned long *stack, unsigned long ebp,
125 char *log_lvl)
117{ 126{
118 unsigned long addr; 127 unsigned long addr;
119 128
120#ifdef CONFIG_FRAME_POINTER 129#ifdef CONFIG_FRAME_POINTER
121 while (valid_stack_ptr(tinfo, (void *)ebp)) { 130 while (valid_stack_ptr(tinfo, (void *)ebp)) {
122 addr = *(unsigned long *)(ebp + 4); 131 addr = *(unsigned long *)(ebp + 4);
123 printk(KERN_EMERG " [<%08lx>] ", addr); 132 print_addr_and_symbol(addr, log_lvl);
124 print_symbol("%s", addr);
125 printk("\n");
126 ebp = *(unsigned long *)ebp; 133 ebp = *(unsigned long *)ebp;
127 } 134 }
128#else 135#else
129 while (valid_stack_ptr(tinfo, stack)) { 136 while (valid_stack_ptr(tinfo, stack)) {
130 addr = *stack++; 137 addr = *stack++;
131 if (__kernel_text_address(addr)) { 138 if (__kernel_text_address(addr))
132 printk(KERN_EMERG " [<%08lx>]", addr); 139 print_addr_and_symbol(addr, log_lvl);
133 print_symbol(" %s", addr);
134 printk("\n");
135 }
136 } 140 }
137#endif 141#endif
138 return ebp; 142 return ebp;
139} 143}
140 144
141void show_trace(struct task_struct *task, unsigned long * stack) 145static void show_trace_log_lvl(struct task_struct *task,
146 unsigned long *stack, char *log_lvl)
142{ 147{
143 unsigned long ebp; 148 unsigned long ebp;
144 149
@@ -157,7 +162,7 @@ void show_trace(struct task_struct *task, unsigned long * stack)
157 struct thread_info *context; 162 struct thread_info *context;
158 context = (struct thread_info *) 163 context = (struct thread_info *)
159 ((unsigned long)stack & (~(THREAD_SIZE - 1))); 164 ((unsigned long)stack & (~(THREAD_SIZE - 1)));
160 ebp = print_context_stack(context, stack, ebp); 165 ebp = print_context_stack(context, stack, ebp, log_lvl);
161 stack = (unsigned long*)context->previous_esp; 166 stack = (unsigned long*)context->previous_esp;
162 if (!stack) 167 if (!stack)
163 break; 168 break;
@@ -165,7 +170,13 @@ void show_trace(struct task_struct *task, unsigned long * stack)
165 } 170 }
166} 171}
167 172
168void show_stack(struct task_struct *task, unsigned long *esp) 173void show_trace(struct task_struct *task, unsigned long * stack)
174{
175 show_trace_log_lvl(task, stack, "");
176}
177
178static void show_stack_log_lvl(struct task_struct *task, unsigned long *esp,
179 char *log_lvl)
169{ 180{
170 unsigned long *stack; 181 unsigned long *stack;
171 int i; 182 int i;
@@ -178,16 +189,26 @@ void show_stack(struct task_struct *task, unsigned long *esp)
178 } 189 }
179 190
180 stack = esp; 191 stack = esp;
181 printk(KERN_EMERG); 192 printk(log_lvl);
182 for(i = 0; i < kstack_depth_to_print; i++) { 193 for(i = 0; i < kstack_depth_to_print; i++) {
183 if (kstack_end(stack)) 194 if (kstack_end(stack))
184 break; 195 break;
185 if (i && ((i % 8) == 0)) 196 if (i && ((i % 8) == 0)) {
186 printk("\n" KERN_EMERG " "); 197 printk("\n");
198 printk(log_lvl);
199 printk(" ");
200 }
187 printk("%08lx ", *stack++); 201 printk("%08lx ", *stack++);
188 } 202 }
189 printk("\n" KERN_EMERG "Call Trace:\n"); 203 printk("\n");
190 show_trace(task, esp); 204 printk(log_lvl);
205 printk("Call Trace:\n");
206 show_trace_log_lvl(task, esp, log_lvl);
207}
208
209void show_stack(struct task_struct *task, unsigned long *esp)
210{
211 show_stack_log_lvl(task, esp, "");
191} 212}
192 213
193/* 214/*
@@ -238,7 +259,7 @@ void show_registers(struct pt_regs *regs)
238 u8 __user *eip; 259 u8 __user *eip;
239 260
240 printk("\n" KERN_EMERG "Stack: "); 261 printk("\n" KERN_EMERG "Stack: ");
241 show_stack(NULL, (unsigned long*)esp); 262 show_stack_log_lvl(NULL, (unsigned long *)esp, KERN_EMERG);
242 263
243 printk(KERN_EMERG "Code: "); 264 printk(KERN_EMERG "Code: ");
244 265