mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-05 08:36:47 +07:00
038b0a6d8d
kbuild explicitly includes this at build time. Signed-off-by: Dave Jones <davej@redhat.com>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*
|
|
* Copyright (C) 2001 - 2003 Jeff Dike (jdike@addtoit.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include "linux/kernel.h"
|
|
#include "linux/smp.h"
|
|
#include "linux/sched.h"
|
|
#include "linux/kallsyms.h"
|
|
#include "asm/ptrace.h"
|
|
#include "sysrq.h"
|
|
|
|
/* This is declared by <linux/sched.h> */
|
|
void show_regs(struct pt_regs *regs)
|
|
{
|
|
printk("\n");
|
|
printk("EIP: %04lx:[<%08lx>] CPU: %d %s",
|
|
0xffff & PT_REGS_CS(regs), PT_REGS_IP(regs),
|
|
smp_processor_id(), print_tainted());
|
|
if (PT_REGS_CS(regs) & 3)
|
|
printk(" ESP: %04lx:%08lx", 0xffff & PT_REGS_SS(regs),
|
|
PT_REGS_SP(regs));
|
|
printk(" EFLAGS: %08lx\n %s\n", PT_REGS_EFLAGS(regs),
|
|
print_tainted());
|
|
printk("EAX: %08lx EBX: %08lx ECX: %08lx EDX: %08lx\n",
|
|
PT_REGS_EAX(regs), PT_REGS_EBX(regs),
|
|
PT_REGS_ECX(regs),
|
|
PT_REGS_EDX(regs));
|
|
printk("ESI: %08lx EDI: %08lx EBP: %08lx",
|
|
PT_REGS_ESI(regs), PT_REGS_EDI(regs),
|
|
PT_REGS_EBP(regs));
|
|
printk(" DS: %04lx ES: %04lx\n",
|
|
0xffff & PT_REGS_DS(regs),
|
|
0xffff & PT_REGS_ES(regs));
|
|
|
|
show_trace(NULL, (unsigned long *) ®s);
|
|
}
|
|
|
|
/* Copied from i386. */
|
|
static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
|
|
{
|
|
return p > (void *)tinfo &&
|
|
p < (void *)tinfo + THREAD_SIZE - 3;
|
|
}
|
|
|
|
/* Adapted from i386 (we also print the address we read from). */
|
|
static inline unsigned long print_context_stack(struct thread_info *tinfo,
|
|
unsigned long *stack, unsigned long ebp)
|
|
{
|
|
unsigned long addr;
|
|
|
|
#ifdef CONFIG_FRAME_POINTER
|
|
while (valid_stack_ptr(tinfo, (void *)ebp)) {
|
|
addr = *(unsigned long *)(ebp + 4);
|
|
printk("%08lx: [<%08lx>]", ebp + 4, addr);
|
|
print_symbol(" %s", addr);
|
|
printk("\n");
|
|
ebp = *(unsigned long *)ebp;
|
|
}
|
|
#else
|
|
while (valid_stack_ptr(tinfo, stack)) {
|
|
addr = *stack;
|
|
if (__kernel_text_address(addr)) {
|
|
printk("%08lx: [<%08lx>]", (unsigned long) stack, addr);
|
|
print_symbol(" %s", addr);
|
|
printk("\n");
|
|
}
|
|
stack++;
|
|
}
|
|
#endif
|
|
return ebp;
|
|
}
|
|
|
|
void show_trace(struct task_struct* task, unsigned long * stack)
|
|
{
|
|
unsigned long ebp;
|
|
struct thread_info *context;
|
|
|
|
/* Turn this into BUG_ON if possible. */
|
|
if (!stack) {
|
|
stack = (unsigned long*) &stack;
|
|
printk("show_trace: got NULL stack, implicit assumption task == current");
|
|
WARN_ON(1);
|
|
}
|
|
|
|
if (!task)
|
|
task = current;
|
|
|
|
if (task != current) {
|
|
ebp = (unsigned long) KSTK_EBP(task);
|
|
} else {
|
|
asm ("movl %%ebp, %0" : "=r" (ebp) : );
|
|
}
|
|
|
|
context = (struct thread_info *)
|
|
((unsigned long)stack & (~(THREAD_SIZE - 1)));
|
|
print_context_stack(context, stack, ebp);
|
|
|
|
printk("\n");
|
|
}
|
|
|