mirror of https://gitee.com/openkylin/linux.git
160 lines
3.5 KiB
C
160 lines
3.5 KiB
C
/*
|
|
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _ASM_ARC_UNWIND_H
|
|
#define _ASM_ARC_UNWIND_H
|
|
|
|
#ifdef CONFIG_ARC_DW2_UNWIND
|
|
|
|
#include <linux/sched.h>
|
|
|
|
struct arc700_regs {
|
|
unsigned long r0;
|
|
unsigned long r1;
|
|
unsigned long r2;
|
|
unsigned long r3;
|
|
unsigned long r4;
|
|
unsigned long r5;
|
|
unsigned long r6;
|
|
unsigned long r7;
|
|
unsigned long r8;
|
|
unsigned long r9;
|
|
unsigned long r10;
|
|
unsigned long r11;
|
|
unsigned long r12;
|
|
unsigned long r13;
|
|
unsigned long r14;
|
|
unsigned long r15;
|
|
unsigned long r16;
|
|
unsigned long r17;
|
|
unsigned long r18;
|
|
unsigned long r19;
|
|
unsigned long r20;
|
|
unsigned long r21;
|
|
unsigned long r22;
|
|
unsigned long r23;
|
|
unsigned long r24;
|
|
unsigned long r25;
|
|
unsigned long r26;
|
|
unsigned long r27; /* fp */
|
|
unsigned long r28; /* sp */
|
|
unsigned long r29;
|
|
unsigned long r30;
|
|
unsigned long r31; /* blink */
|
|
unsigned long r63; /* pc */
|
|
};
|
|
|
|
struct unwind_frame_info {
|
|
struct arc700_regs regs;
|
|
struct task_struct *task;
|
|
unsigned call_frame:1;
|
|
};
|
|
|
|
#define UNW_PC(frame) ((frame)->regs.r63)
|
|
#define UNW_SP(frame) ((frame)->regs.r28)
|
|
#define UNW_BLINK(frame) ((frame)->regs.r31)
|
|
|
|
/* Rajesh FIXME */
|
|
#ifdef CONFIG_FRAME_POINTER
|
|
#define UNW_FP(frame) ((frame)->regs.r27)
|
|
#define FRAME_RETADDR_OFFSET 4
|
|
#define FRAME_LINK_OFFSET 0
|
|
#define STACK_BOTTOM_UNW(tsk) STACK_LIMIT((tsk)->thread.ksp)
|
|
#define STACK_TOP_UNW(tsk) ((tsk)->thread.ksp)
|
|
#else
|
|
#define UNW_FP(frame) ((void)(frame), 0)
|
|
#endif
|
|
|
|
#define STACK_LIMIT(ptr) (((ptr) - 1) & ~(THREAD_SIZE - 1))
|
|
|
|
#define UNW_REGISTER_INFO \
|
|
PTREGS_INFO(r0), \
|
|
PTREGS_INFO(r1), \
|
|
PTREGS_INFO(r2), \
|
|
PTREGS_INFO(r3), \
|
|
PTREGS_INFO(r4), \
|
|
PTREGS_INFO(r5), \
|
|
PTREGS_INFO(r6), \
|
|
PTREGS_INFO(r7), \
|
|
PTREGS_INFO(r8), \
|
|
PTREGS_INFO(r9), \
|
|
PTREGS_INFO(r10), \
|
|
PTREGS_INFO(r11), \
|
|
PTREGS_INFO(r12), \
|
|
PTREGS_INFO(r13), \
|
|
PTREGS_INFO(r14), \
|
|
PTREGS_INFO(r15), \
|
|
PTREGS_INFO(r16), \
|
|
PTREGS_INFO(r17), \
|
|
PTREGS_INFO(r18), \
|
|
PTREGS_INFO(r19), \
|
|
PTREGS_INFO(r20), \
|
|
PTREGS_INFO(r21), \
|
|
PTREGS_INFO(r22), \
|
|
PTREGS_INFO(r23), \
|
|
PTREGS_INFO(r24), \
|
|
PTREGS_INFO(r25), \
|
|
PTREGS_INFO(r26), \
|
|
PTREGS_INFO(r27), \
|
|
PTREGS_INFO(r28), \
|
|
PTREGS_INFO(r29), \
|
|
PTREGS_INFO(r30), \
|
|
PTREGS_INFO(r31), \
|
|
PTREGS_INFO(r63)
|
|
|
|
#define UNW_DEFAULT_RA(raItem, dataAlign) \
|
|
((raItem).where == Memory && !((raItem).value * (dataAlign) + 4))
|
|
|
|
extern int arc_unwind(struct unwind_frame_info *frame);
|
|
extern void arc_unwind_init(void);
|
|
extern void *unwind_add_table(struct module *module, const void *table_start,
|
|
unsigned long table_size);
|
|
extern void unwind_remove_table(void *handle, int init_only);
|
|
|
|
static inline int
|
|
arch_unwind_init_running(struct unwind_frame_info *info,
|
|
int (*callback) (struct unwind_frame_info *info,
|
|
void *arg),
|
|
void *arg)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int arch_unw_user_mode(const struct unwind_frame_info *info)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline void arch_unw_init_blocked(struct unwind_frame_info *info)
|
|
{
|
|
return;
|
|
}
|
|
|
|
static inline void arch_unw_init_frame_info(struct unwind_frame_info *info,
|
|
struct pt_regs *regs)
|
|
{
|
|
return;
|
|
}
|
|
|
|
#else
|
|
|
|
#define UNW_PC(frame) ((void)(frame), 0)
|
|
#define UNW_SP(frame) ((void)(frame), 0)
|
|
#define UNW_FP(frame) ((void)(frame), 0)
|
|
|
|
static inline void arc_unwind_init(void)
|
|
{
|
|
}
|
|
|
|
#define unwind_add_table(a, b, c)
|
|
#define unwind_remove_table(a, b)
|
|
|
|
#endif /* CONFIG_ARC_DW2_UNWIND */
|
|
|
|
#endif /* _ASM_ARC_UNWIND_H */
|