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Diffstat (limited to 'arch/powerpc/xmon/xmon.c')
-rw-r--r--arch/powerpc/xmon/xmon.c26
1 files changed, 5 insertions, 21 deletions
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 3a56a639a92e..1f8d2f10a432 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -52,9 +52,6 @@
#include "nonstdio.h"
#include "dis-asm.h"
-#define scanhex xmon_scanhex
-#define skipbl xmon_skipbl
-
#ifdef CONFIG_SMP
static cpumask_t cpus_in_xmon = CPU_MASK_NONE;
static unsigned long xmon_taken = 1;
@@ -169,12 +166,8 @@ extern void xmon_leave(void);
#ifdef CONFIG_PPC64
#define REG "%.16lx"
-#define REGS_PER_LINE 4
-#define LAST_VOLATILE 13
#else
#define REG "%.8lx"
-#define REGS_PER_LINE 8
-#define LAST_VOLATILE 12
#endif
#define GETWORD(v) (((v)[0] << 24) + ((v)[1] << 16) + ((v)[2] << 8) + (v)[3])
@@ -1288,27 +1281,19 @@ static void get_function_bounds(unsigned long pc, unsigned long *startp,
catch_memory_errors = 0;
}
-static int xmon_depth_to_print = 64;
-
#define LRSAVE_OFFSET (STACK_FRAME_LR_SAVE * sizeof(unsigned long))
#define MARKER_OFFSET (STACK_FRAME_MARKER * sizeof(unsigned long))
-#ifdef __powerpc64__
-#define REGS_OFFSET 0x70
-#else
-#define REGS_OFFSET 16
-#endif
-
static void xmon_show_stack(unsigned long sp, unsigned long lr,
unsigned long pc)
{
+ int max_to_print = 64;
unsigned long ip;
unsigned long newsp;
unsigned long marker;
- int count = 0;
struct pt_regs regs;
- do {
+ while (max_to_print--) {
if (sp < PAGE_OFFSET) {
if (sp != 0)
printf("SP (%lx) is in userspace\n", sp);
@@ -1362,10 +1347,10 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
an exception frame. */
if (mread(sp + MARKER_OFFSET, &marker, sizeof(unsigned long))
&& marker == STACK_FRAME_REGS_MARKER) {
- if (mread(sp + REGS_OFFSET, &regs, sizeof(regs))
+ if (mread(sp + STACK_FRAME_OVERHEAD, &regs, sizeof(regs))
!= sizeof(regs)) {
printf("Couldn't read registers at %lx\n",
- sp + REGS_OFFSET);
+ sp + STACK_FRAME_OVERHEAD);
break;
}
printf("--- Exception: %lx %s at ", regs.trap,
@@ -1379,7 +1364,7 @@ static void xmon_show_stack(unsigned long sp, unsigned long lr,
break;
sp = newsp;
- } while (count++ < xmon_depth_to_print);
+ }
}
static void backtrace(struct pt_regs *excp)
@@ -2943,7 +2928,6 @@ static void xmon_init(int enable)
__debugger_dabr_match = NULL;
__debugger_fault_handler = NULL;
}
- xmon_map_scc();
}
#ifdef CONFIG_MAGIC_SYSRQ