/*
* Routines providing a simple monitor for use on the PowerMac.
*
- * Copyright (C) 1996 Paul Mackerras.
+ * Copyright (C) 1996-2005 Paul Mackerras.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
#include <linux/kallsyms.h>
#include <linux/cpumask.h>
#include <linux/module.h>
+#include <linux/sysrq.h>
+#include <linux/interrupt.h>
#include <asm/ptrace.h>
#include <asm/string.h>
static const char *getvecname(unsigned long vec);
extern int print_insn_powerpc(unsigned long, unsigned long, int);
-extern void printf(const char *fmt, ...);
-extern void xmon_vfprintf(void *f, const char *fmt, va_list ap);
-extern int xmon_putc(int c, void *f);
-extern int putchar(int ch);
extern void xmon_enter(void);
extern void xmon_leave(void);
-extern int xmon_read_poll(void);
extern long setjmp(long *);
extern void longjmp(long *, long);
extern void xmon_save_regs(struct pt_regs *);
}
#endif
-int xmon_core(struct pt_regs *regs, int fromipi)
+static int xmon_core(struct pt_regs *regs, int fromipi)
{
int cmd = 0;
unsigned long msr;
leave:
cpu_clear(cpu, cpus_in_xmon);
xmon_fault_jmp[cpu] = NULL;
-
#else
/* UP is simple... */
if (in_xmon) {
return IRQ_HANDLED;
}
-int xmon_bpt(struct pt_regs *regs)
+static int xmon_bpt(struct pt_regs *regs)
{
struct bpt *bp;
unsigned long offset;
return 1;
}
-int xmon_sstep(struct pt_regs *regs)
+static int xmon_sstep(struct pt_regs *regs)
{
if (user_mode(regs))
return 0;
return 1;
}
-int xmon_dabr_match(struct pt_regs *regs)
+static int xmon_dabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
return 0;
return 1;
}
-int xmon_iabr_match(struct pt_regs *regs)
+static int xmon_iabr_match(struct pt_regs *regs)
{
if ((regs->msr & (MSR_IR|MSR_PR|MSR_SF)) != (MSR_IR|MSR_SF))
return 0;
return 1;
}
-int xmon_ipi(struct pt_regs *regs)
+static int xmon_ipi(struct pt_regs *regs)
{
#ifdef CONFIG_SMP
if (in_xmon && !cpu_isset(smp_processor_id(), cpus_in_xmon))
return 0;
}
-int xmon_fault_handler(struct pt_regs *regs)
+static int xmon_fault_handler(struct pt_regs *regs)
{
struct bpt *bp;
unsigned long offset;
printf("%x:", smp_processor_id());
#endif /* CONFIG_SMP */
printf("mon> ");
- fflush(stdout);
flush_input();
termch = 0;
cmd = skipbl();
break;
case 'x':
case 'X':
+ return cmd;
case EOF:
+ printf(" <no input ...>\n");
+ mdelay(2000);
return cmd;
case '?':
printf(help_string);
unsigned int instr;
addr &= ~3;
- if (addr < KERNELBASE) {
+ if (!is_kernel_addr(addr)) {
printf("Breakpoints may only be placed at kernel addresses\n");
return 0;
}
dabr.address = 0;
dabr.enabled = 0;
if (scanhex(&dabr.address)) {
- if (dabr.address < KERNELBASE) {
+ if (!is_kernel_addr(dabr.address)) {
printf(badaddr);
break;
}
{
unsigned int instrs[2];
unsigned long (*code)(void);
- unsigned long opd[3];
unsigned long ret = -1UL;
+#ifdef CONFIG_PPC64
+ unsigned long opd[3];
- instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(void)) opd;
+#else
+ code = (unsigned long (*)(void)) instrs;
+#endif
+
+ /* mfspr r3,n; blr */
+ instrs[0] = 0x7c6002a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(void)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;
{
unsigned int instrs[2];
unsigned long (*code)(unsigned long);
+#ifdef CONFIG_PPC64
unsigned long opd[3];
- instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
- instrs[1] = 0x4e800020;
opd[0] = (unsigned long)instrs;
opd[1] = 0;
opd[2] = 0;
+ code = (unsigned long (*)(unsigned long)) opd;
+#else
+ code = (unsigned long (*)(unsigned long)) instrs;
+#endif
+
+ instrs[0] = 0x7c6003a6 + ((n & 0x1F) << 16) + ((n & 0x3e0) << 6);
+ instrs[1] = 0x4e800020;
store_inst(instrs);
store_inst(instrs+1);
- code = (unsigned long (*)(unsigned long)) opd;
if (setjmp(bus_error_jmp) == 0) {
catch_memory_errors = 1;
for(;;){
if (!mnoread)
n = mread(adrs, val, size);
- printf("%.16x%c", adrs, brev? 'r': ' ');
+ printf(REG"%c", adrs, brev? 'r': ' ');
if (!mnoread) {
if (brev)
byterev(val, size);
nr = mread(adrs, temp, r);
adrs += nr;
for (m = 0; m < r; ++m) {
- if ((m & 7) == 0 && m > 0)
- putchar(' ');
+ if ((m & (sizeof(long) - 1)) == 0 && m > 0)
+ putchar(' ');
if (m < nr)
printf("%.2x", temp[m]);
else
printf("%s", fault_chars[fault_type]);
}
- if (m <= 8)
- printf(" ");
- for (; m < 16; ++m)
+ for (; m < 16; ++m) {
+ if ((m & (sizeof(long) - 1)) == 0)
+ putchar(' ');
printf(" ");
+ }
printf(" |");
for (m = 0; m < r; ++m) {
if (m < nr) {
ok = mread(a, &v, 1);
if (ok && !ook) {
printf("%.8x .. ", a);
- fflush(stdout);
} else if (!ok && ook)
printf("%.8x\n", a - mskip);
ook = ok;
inchar(void)
{
if (lineptr == NULL || *lineptr == 0) {
- if (fgets(line, sizeof(line), stdin) == NULL) {
+ if (xmon_gets(line, sizeof(line)) == NULL) {
lineptr = NULL;
return EOF;
}
__debugger_dabr_match = NULL;
__debugger_fault_handler = NULL;
}
+ xmon_map_scc();
+}
+
+#ifdef CONFIG_MAGIC_SYSRQ
+static void sysrq_handle_xmon(int key, struct pt_regs *pt_regs,
+ struct tty_struct *tty)
+{
+ /* ensure xmon is enabled */
+ xmon_init(1);
+ debugger(pt_regs);
+}
+
+static struct sysrq_key_op sysrq_xmon_op =
+{
+ .handler = sysrq_handle_xmon,
+ .help_msg = "Xmon",
+ .action_msg = "Entering xmon",
+};
+
+static int __init setup_xmon_sysrq(void)
+{
+ register_sysrq_key('x', &sysrq_xmon_op);
+ return 0;
}
+__initcall(setup_xmon_sysrq);
+#endif /* CONFIG_MAGIC_SYSRQ */
git.openpandora.org / pandora-kernel.git / blobdiff