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| Filename | /usr/src/linux-headers-3.13.0-24/arch/xtensa/include/uapi/asm/ptrace.h |
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| Create time | 27-Apr-2025 09:50 |
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/*
* include/asm-xtensa/ptrace.h
*
* 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) 2001 - 2005 Tensilica Inc.
*/
#ifndef _UAPI_XTENSA_PTRACE_H
#define _UAPI_XTENSA_PTRACE_H
/*
* Kernel stack
*
* +-----------------------+ -------- STACK_SIZE
* | register file | |
* +-----------------------+ |
* | struct pt_regs | |
* +-----------------------+ | ------ PT_REGS_OFFSET
* double : 16 bytes spill area : | ^
* excetion :- - - - - - - - - - - -: | |
* frame : struct pt_regs : | |
* :- - - - - - - - - - - -: | |
* | | | |
* | memory stack | | |
* | | | |
* ~ ~ ~ ~
* ~ ~ ~ ~
* | | | |
* | | | |
* +-----------------------+ | | --- STACK_BIAS
* | struct task_struct | | | ^
* current --> +-----------------------+ | | |
* | struct thread_info | | | |
* +-----------------------+ --------
*/
#define KERNEL_STACK_SIZE (2 * PAGE_SIZE)
/* Offsets for exception_handlers[] (3 x 64-entries x 4-byte tables). */
#define EXC_TABLE_KSTK 0x004 /* Kernel Stack */
#define EXC_TABLE_DOUBLE_SAVE 0x008 /* Double exception save area for a0 */
#define EXC_TABLE_FIXUP 0x00c /* Fixup handler */
#define EXC_TABLE_PARAM 0x010 /* For passing a parameter to fixup */
#define EXC_TABLE_SYSCALL_SAVE 0x014 /* For fast syscall handler */
#define EXC_TABLE_FAST_USER 0x100 /* Fast user exception handler */
#define EXC_TABLE_FAST_KERNEL 0x200 /* Fast kernel exception handler */
#define EXC_TABLE_DEFAULT 0x300 /* Default C-Handler */
#define EXC_TABLE_SIZE 0x400
/* Registers used by strace */
#define REG_A_BASE 0x0000
#define REG_AR_BASE 0x0100
#define REG_PC 0x0020
#define REG_PS 0x02e6
#define REG_WB 0x0248
#define REG_WS 0x0249
#define REG_LBEG 0x0200
#define REG_LEND 0x0201
#define REG_LCOUNT 0x0202
#define REG_SAR 0x0203
#define SYSCALL_NR 0x00ff
/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
#define PTRACE_GETXTREGS 18
#define PTRACE_SETXTREGS 19
#endif /* _UAPI_XTENSA_PTRACE_H */
* include/asm-xtensa/ptrace.h
*
* 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) 2001 - 2005 Tensilica Inc.
*/
#ifndef _UAPI_XTENSA_PTRACE_H
#define _UAPI_XTENSA_PTRACE_H
/*
* Kernel stack
*
* +-----------------------+ -------- STACK_SIZE
* | register file | |
* +-----------------------+ |
* | struct pt_regs | |
* +-----------------------+ | ------ PT_REGS_OFFSET
* double : 16 bytes spill area : | ^
* excetion :- - - - - - - - - - - -: | |
* frame : struct pt_regs : | |
* :- - - - - - - - - - - -: | |
* | | | |
* | memory stack | | |
* | | | |
* ~ ~ ~ ~
* ~ ~ ~ ~
* | | | |
* | | | |
* +-----------------------+ | | --- STACK_BIAS
* | struct task_struct | | | ^
* current --> +-----------------------+ | | |
* | struct thread_info | | | |
* +-----------------------+ --------
*/
#define KERNEL_STACK_SIZE (2 * PAGE_SIZE)
/* Offsets for exception_handlers[] (3 x 64-entries x 4-byte tables). */
#define EXC_TABLE_KSTK 0x004 /* Kernel Stack */
#define EXC_TABLE_DOUBLE_SAVE 0x008 /* Double exception save area for a0 */
#define EXC_TABLE_FIXUP 0x00c /* Fixup handler */
#define EXC_TABLE_PARAM 0x010 /* For passing a parameter to fixup */
#define EXC_TABLE_SYSCALL_SAVE 0x014 /* For fast syscall handler */
#define EXC_TABLE_FAST_USER 0x100 /* Fast user exception handler */
#define EXC_TABLE_FAST_KERNEL 0x200 /* Fast kernel exception handler */
#define EXC_TABLE_DEFAULT 0x300 /* Default C-Handler */
#define EXC_TABLE_SIZE 0x400
/* Registers used by strace */
#define REG_A_BASE 0x0000
#define REG_AR_BASE 0x0100
#define REG_PC 0x0020
#define REG_PS 0x02e6
#define REG_WB 0x0248
#define REG_WS 0x0249
#define REG_LBEG 0x0200
#define REG_LEND 0x0201
#define REG_LCOUNT 0x0202
#define REG_SAR 0x0203
#define SYSCALL_NR 0x00ff
/* Other PTRACE_ values defined in <linux/ptrace.h> using values 0-9,16,17,24 */
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
#define PTRACE_GETXTREGS 18
#define PTRACE_SETXTREGS 19
#endif /* _UAPI_XTENSA_PTRACE_H */