| /* |
| * 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 */ |
