forked from luck/tmp_suning_uos_patched
ce384d83d0
The MIPS implementation of die() forgets to call notify_die() and thus notifiers registered via register_die_notifier() are not called. This results in kgdb not being activated on exceptions. The only subtlety is that notify_die declares its regs argument w/o const, so the const had to be removed from mips die() as well. [Ralf: Fixed build error for SGI IP22 and IP28 platforms.] Signed-off-by: Yury Polyanskiy <ypolyans@princeton.edu> Cc: linux-mips@linux-mips.org Patchworks: http://patchwork.linux-mips.org/patch/1142/ Acked-by: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
156 lines
4.1 KiB
C
156 lines
4.1 KiB
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
|
|
* Copyright (C) 1999, 2000 Silicon Graphics, Inc.
|
|
*/
|
|
#ifndef _ASM_PTRACE_H
|
|
#define _ASM_PTRACE_H
|
|
|
|
/* 0 - 31 are integer registers, 32 - 63 are fp registers. */
|
|
#define FPR_BASE 32
|
|
#define PC 64
|
|
#define CAUSE 65
|
|
#define BADVADDR 66
|
|
#define MMHI 67
|
|
#define MMLO 68
|
|
#define FPC_CSR 69
|
|
#define FPC_EIR 70
|
|
#define DSP_BASE 71 /* 3 more hi / lo register pairs */
|
|
#define DSP_CONTROL 77
|
|
#define ACX 78
|
|
|
|
/*
|
|
* This struct defines the way the registers are stored on the stack during a
|
|
* system call/exception. As usual the registers k0/k1 aren't being saved.
|
|
*/
|
|
struct pt_regs {
|
|
#ifdef CONFIG_32BIT
|
|
/* Pad bytes for argument save space on the stack. */
|
|
unsigned long pad0[6];
|
|
#endif
|
|
|
|
/* Saved main processor registers. */
|
|
unsigned long regs[32];
|
|
|
|
/* Saved special registers. */
|
|
unsigned long cp0_status;
|
|
unsigned long hi;
|
|
unsigned long lo;
|
|
#ifdef CONFIG_CPU_HAS_SMARTMIPS
|
|
unsigned long acx;
|
|
#endif
|
|
unsigned long cp0_badvaddr;
|
|
unsigned long cp0_cause;
|
|
unsigned long cp0_epc;
|
|
#ifdef CONFIG_MIPS_MT_SMTC
|
|
unsigned long cp0_tcstatus;
|
|
#endif /* CONFIG_MIPS_MT_SMTC */
|
|
#ifdef CONFIG_CPU_CAVIUM_OCTEON
|
|
unsigned long long mpl[3]; /* MTM{0,1,2} */
|
|
unsigned long long mtp[3]; /* MTP{0,1,2} */
|
|
#endif
|
|
} __attribute__ ((aligned (8)));
|
|
|
|
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
|
|
#define PTRACE_GETREGS 12
|
|
#define PTRACE_SETREGS 13
|
|
#define PTRACE_GETFPREGS 14
|
|
#define PTRACE_SETFPREGS 15
|
|
/* #define PTRACE_GETFPXREGS 18 */
|
|
/* #define PTRACE_SETFPXREGS 19 */
|
|
|
|
#define PTRACE_OLDSETOPTIONS 21
|
|
|
|
#define PTRACE_GET_THREAD_AREA 25
|
|
#define PTRACE_SET_THREAD_AREA 26
|
|
|
|
/* Calls to trace a 64bit program from a 32bit program. */
|
|
#define PTRACE_PEEKTEXT_3264 0xc0
|
|
#define PTRACE_PEEKDATA_3264 0xc1
|
|
#define PTRACE_POKETEXT_3264 0xc2
|
|
#define PTRACE_POKEDATA_3264 0xc3
|
|
#define PTRACE_GET_THREAD_AREA_3264 0xc4
|
|
|
|
/* Read and write watchpoint registers. */
|
|
enum pt_watch_style {
|
|
pt_watch_style_mips32,
|
|
pt_watch_style_mips64
|
|
};
|
|
struct mips32_watch_regs {
|
|
unsigned int watchlo[8];
|
|
/* Lower 16 bits of watchhi. */
|
|
unsigned short watchhi[8];
|
|
/* Valid mask and I R W bits.
|
|
* bit 0 -- 1 if W bit is usable.
|
|
* bit 1 -- 1 if R bit is usable.
|
|
* bit 2 -- 1 if I bit is usable.
|
|
* bits 3 - 11 -- Valid watchhi mask bits.
|
|
*/
|
|
unsigned short watch_masks[8];
|
|
/* The number of valid watch register pairs. */
|
|
unsigned int num_valid;
|
|
} __attribute__((aligned(8)));
|
|
|
|
struct mips64_watch_regs {
|
|
unsigned long long watchlo[8];
|
|
unsigned short watchhi[8];
|
|
unsigned short watch_masks[8];
|
|
unsigned int num_valid;
|
|
} __attribute__((aligned(8)));
|
|
|
|
struct pt_watch_regs {
|
|
enum pt_watch_style style;
|
|
union {
|
|
struct mips32_watch_regs mips32;
|
|
struct mips64_watch_regs mips64;
|
|
};
|
|
};
|
|
|
|
#define PTRACE_GET_WATCH_REGS 0xd0
|
|
#define PTRACE_SET_WATCH_REGS 0xd1
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/compiler.h>
|
|
#include <linux/linkage.h>
|
|
#include <linux/types.h>
|
|
#include <asm/isadep.h>
|
|
|
|
struct task_struct;
|
|
|
|
extern int ptrace_getregs(struct task_struct *child, __s64 __user *data);
|
|
extern int ptrace_setregs(struct task_struct *child, __s64 __user *data);
|
|
|
|
extern int ptrace_getfpregs(struct task_struct *child, __u32 __user *data);
|
|
extern int ptrace_setfpregs(struct task_struct *child, __u32 __user *data);
|
|
|
|
extern int ptrace_get_watch_regs(struct task_struct *child,
|
|
struct pt_watch_regs __user *addr);
|
|
extern int ptrace_set_watch_regs(struct task_struct *child,
|
|
struct pt_watch_regs __user *addr);
|
|
|
|
/*
|
|
* Does the process account for user or for system time?
|
|
*/
|
|
#define user_mode(regs) (((regs)->cp0_status & KU_MASK) == KU_USER)
|
|
|
|
#define instruction_pointer(regs) ((regs)->cp0_epc)
|
|
#define profile_pc(regs) instruction_pointer(regs)
|
|
|
|
extern asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit);
|
|
|
|
extern NORET_TYPE void die(const char *, struct pt_regs *) ATTRIB_NORET;
|
|
|
|
static inline void die_if_kernel(const char *str, struct pt_regs *regs)
|
|
{
|
|
if (unlikely(!user_mode(regs)))
|
|
die(str, regs);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* _ASM_PTRACE_H */
|