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Diffstat (limited to 'include/asm-xtensa/ptrace.h')
| -rw-r--r-- | include/asm-xtensa/ptrace.h | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/include/asm-xtensa/ptrace.h b/include/asm-xtensa/ptrace.h deleted file mode 100644 index 089b0db..0000000 --- a/include/asm-xtensa/ptrace.h +++ /dev/null @@ -1,135 +0,0 @@ -/* - * 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 _XTENSA_PTRACE_H -#define _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 - -#ifdef __KERNEL__ - -#ifndef __ASSEMBLY__ - -/* - * This struct defines the way the registers are stored on the - * kernel stack during a system call or other kernel entry. - */ -struct pt_regs { - unsigned long pc; /* 4 */ - unsigned long ps; /* 8 */ - unsigned long depc; /* 12 */ - unsigned long exccause; /* 16 */ - unsigned long excvaddr; /* 20 */ - unsigned long debugcause; /* 24 */ - unsigned long wmask; /* 28 */ - unsigned long lbeg; /* 32 */ - unsigned long lend; /* 36 */ - unsigned long lcount; /* 40 */ - unsigned long sar; /* 44 */ - unsigned long windowbase; /* 48 */ - unsigned long windowstart; /* 52 */ - unsigned long syscall; /* 56 */ - unsigned long icountlevel; /* 60 */ - int reserved[1]; /* 64 */ - - /* Additional configurable registers that are used by the compiler. */ - xtregs_opt_t xtregs_opt; - - /* Make sure the areg field is 16 bytes aligned. */ - int align[0] __attribute__ ((aligned(16))); - - /* current register frame. - * Note: The ESF for kernel exceptions ends after 16 registers! - */ - unsigned long areg[16]; /* 128 (64) */ -}; - -#include <asm/variant/core.h> - -# define task_pt_regs(tsk) ((struct pt_regs*) \ - (task_stack_page(tsk) + KERNEL_STACK_SIZE - (XCHAL_NUM_AREGS-16)*4) - 1) -# define user_mode(regs) (((regs)->ps & 0x00000020)!=0) -# define instruction_pointer(regs) ((regs)->pc) -extern void show_regs(struct pt_regs *); - -# ifndef CONFIG_SMP -# define profile_pc(regs) instruction_pointer(regs) -# endif - -#else /* __ASSEMBLY__ */ - -# include <asm/asm-offsets.h> -#define PT_REGS_OFFSET (KERNEL_STACK_SIZE - PT_USER_SIZE) - -#endif /* !__ASSEMBLY__ */ - -#endif /* __KERNEL__ */ - -#endif /* _XTENSA_PTRACE_H */ |
