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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
- #define PTRACE_GETHBPREGS 20
- #define PTRACE_SETHBPREGS 21
- #endif /* _UAPI_XTENSA_PTRACE_H */
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