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      1 /*
      2  * This file is subject to the terms and conditions of the GNU General Public
      3  * License.  See the file "COPYING" in the main directory of this archive
      4  * for more details.
      5  *
      6  * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
      7  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
      8  */
      9 #ifndef _UAPI_ASM_PTRACE_H
     10 #define _UAPI_ASM_PTRACE_H
     11 
     12 #include <linux/types.h>
     13 
     14 /* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
     15 #define FPR_BASE	32
     16 #define PC		64
     17 #define CAUSE		65
     18 #define BADVADDR	66
     19 #define MMHI		67
     20 #define MMLO		68
     21 #define FPC_CSR		69
     22 #define FPC_EIR		70
     23 #define DSP_BASE	71		/* 3 more hi / lo register pairs */
     24 #define DSP_CONTROL	77
     25 #define ACX		78
     26 
     27 /*
     28  * This struct defines the registers as used by PTRACE_{GET,SET}REGS. The
     29  * format is the same for both 32- and 64-bit processes. Registers for 32-bit
     30  * processes are sign extended.
     31  */
     32 #ifdef __KERNEL__
     33 struct user_pt_regs {
     34 #else
     35 struct pt_regs {
     36 #endif
     37 	/* Saved main processor registers. */
     38 	__u64 regs[32];
     39 
     40 	/* Saved special registers. */
     41 	__u64 lo;
     42 	__u64 hi;
     43 	__u64 cp0_epc;
     44 	__u64 cp0_badvaddr;
     45 	__u64 cp0_status;
     46 	__u64 cp0_cause;
     47 } __attribute__ ((aligned (8)));
     48 
     49 /* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
     50 #define PTRACE_GETREGS		12
     51 #define PTRACE_SETREGS		13
     52 #define PTRACE_GETFPREGS		14
     53 #define PTRACE_SETFPREGS		15
     54 /* #define PTRACE_GETFPXREGS		18 */
     55 /* #define PTRACE_SETFPXREGS		19 */
     56 
     57 #define PTRACE_OLDSETOPTIONS	21
     58 
     59 #define PTRACE_GET_THREAD_AREA	25
     60 #define PTRACE_SET_THREAD_AREA	26
     61 
     62 /* Calls to trace a 64bit program from a 32bit program.	 */
     63 #define PTRACE_PEEKTEXT_3264	0xc0
     64 #define PTRACE_PEEKDATA_3264	0xc1
     65 #define PTRACE_POKETEXT_3264	0xc2
     66 #define PTRACE_POKEDATA_3264	0xc3
     67 #define PTRACE_GET_THREAD_AREA_3264	0xc4
     68 
     69 /* Read and write watchpoint registers.	 */
     70 enum pt_watch_style {
     71 	pt_watch_style_mips32,
     72 	pt_watch_style_mips64
     73 };
     74 struct mips32_watch_regs {
     75 	unsigned int watchlo[8];
     76 	/* Lower 16 bits of watchhi. */
     77 	unsigned short watchhi[8];
     78 	/* Valid mask and I R W bits.
     79 	 * bit 0 -- 1 if W bit is usable.
     80 	 * bit 1 -- 1 if R bit is usable.
     81 	 * bit 2 -- 1 if I bit is usable.
     82 	 * bits 3 - 11 -- Valid watchhi mask bits.
     83 	 */
     84 	unsigned short watch_masks[8];
     85 	/* The number of valid watch register pairs.  */
     86 	unsigned int num_valid;
     87 } __attribute__((aligned(8)));
     88 
     89 struct mips64_watch_regs {
     90 	unsigned long long watchlo[8];
     91 	unsigned short watchhi[8];
     92 	unsigned short watch_masks[8];
     93 	unsigned int num_valid;
     94 } __attribute__((aligned(8)));
     95 
     96 struct pt_watch_regs {
     97 	enum pt_watch_style style;
     98 	union {
     99 		struct mips32_watch_regs mips32;
    100 		struct mips64_watch_regs mips64;
    101 	};
    102 };
    103 
    104 #define PTRACE_GET_WATCH_REGS	0xd0
    105 #define PTRACE_SET_WATCH_REGS	0xd1
    106 
    107 
    108 #endif /* _UAPI_ASM_PTRACE_H */
    109