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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2005-04-17 15:50:36 +0100
committerRussell King <rmk@dyn-67.arm.linux.org.uk>2005-04-17 15:50:36 +0100
commit652a12ef98d16ccd1ee5cdf2c832ce5411ed3262 (patch)
treefb4202396bed56574c68f5b516eeb85846e88c6a
parent58c02ec4701c94c671a41e1e5d50c582e859851f (diff)
[PATCH] ARM: showregs
Fix show_regs() to provide a backtrace. Provide a new __show_regs() function which implements the common subset of show_regs() and die(). Add prototypes to asm-arm/system.h Signed-off-by: Russell King <rmk@arm.linux.org.uk>
-rw-r--r--arch/arm/kernel/process.c15
-rw-r--r--arch/arm/kernel/traps.c8
-rw-r--r--include/asm-arm/ptrace.h5
-rw-r--r--include/asm-arm/system.h3
4 files changed, 17 insertions, 14 deletions
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index dbd8ca89b38..26eacd3e5de 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -168,12 +168,11 @@ void machine_restart(char * __unused)
EXPORT_SYMBOL(machine_restart);
-void show_regs(struct pt_regs * regs)
+void __show_regs(struct pt_regs *regs)
{
- unsigned long flags;
-
- flags = condition_codes(regs);
+ unsigned long flags = condition_codes(regs);
+ printk("CPU: %d\n", smp_processor_id());
print_symbol("PC is at %s\n", instruction_pointer(regs));
print_symbol("LR is at %s\n", regs->ARM_lr);
printk("pc : [<%08lx>] lr : [<%08lx>] %s\n"
@@ -213,6 +212,14 @@ void show_regs(struct pt_regs * regs)
}
}
+void show_regs(struct pt_regs * regs)
+{
+ printk("\n");
+ printk("Pid: %d, comm: %20s\n", current->pid, current->comm);
+ __show_regs(regs);
+ __backtrace();
+}
+
void show_fpregs(struct user_fp *regs)
{
int i;
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 93dc4646cd7..6e31718f600 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -31,9 +31,6 @@
#include "ptrace.h"
-extern void c_backtrace (unsigned long fp, int pmode);
-extern void show_pte(struct mm_struct *mm, unsigned long addr);
-
const char *processor_modes[]=
{ "USER_26", "FIQ_26" , "IRQ_26" , "SVC_26" , "UK4_26" , "UK5_26" , "UK6_26" , "UK7_26" ,
"UK8_26" , "UK9_26" , "UK10_26", "UK11_26", "UK12_26", "UK13_26", "UK14_26", "UK15_26",
@@ -216,8 +213,7 @@ NORET_TYPE void die(const char *str, struct pt_regs *regs, int err)
printk("Internal error: %s: %x [#%d]\n", str, err, ++die_counter);
print_modules();
- printk("CPU: %d\n", smp_processor_id());
- show_regs(regs);
+ __show_regs(regs);
printk("Process %s (pid: %d, stack limit = 0x%p)\n",
tsk->comm, tsk->pid, tsk->thread_info + 1);
@@ -482,7 +478,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
current->pid, current->comm, no);
dump_instr(regs);
if (user_mode(regs)) {
- show_regs(regs);
+ __show_regs(regs);
c_backtrace(regs->ARM_fp, processor_mode(regs));
}
}
diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
index 604e3a186cf..4377e22b7e1 100644
--- a/include/asm-arm/ptrace.h
+++ b/include/asm-arm/ptrace.h
@@ -142,11 +142,8 @@ extern unsigned long profile_pc(struct pt_regs *regs);
#endif
#ifdef __KERNEL__
-extern void show_regs(struct pt_regs *);
-
-#define predicate(x) (x & 0xf0000000)
+#define predicate(x) ((x) & 0xf0000000)
#define PREDICATE_ALWAYS 0xe0000000
-
#endif
#endif /* __ASSEMBLY__ */
diff --git a/include/asm-arm/system.h b/include/asm-arm/system.h
index b5731290b4e..b13a8da4847 100644
--- a/include/asm-arm/system.h
+++ b/include/asm-arm/system.h
@@ -99,6 +99,9 @@ void hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int,
#define tas(ptr) (xchg((ptr),1))
extern asmlinkage void __backtrace(void);
+extern asmlinkage void c_backtrace(unsigned long fp, int pmode);
+extern void show_pte(struct mm_struct *mm, unsigned long addr);
+extern void __show_regs(struct pt_regs *);
extern int cpu_architecture(void);