/*
* 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) 1995 Andreas Busse
* Copyright (C) 2003 Ralf Baechle
*/
#ifndef _ASM_GDB_STUB_H
#define _ASM_GDB_STUB_H
/*
* important register numbers
*/
#define REG_EPC 37
#define REG_FP 72
#define REG_SP 29
/*
* Stack layout for the GDB exception handler
* Derived from the stack layout described in asm-mips/stackframe.h
*
* The first PTRSIZE*6 bytes are argument save space for C subroutines.
*/
#define NUMREGS 90
#define GDB_FR_REG0 (PTRSIZE*6) /* 0 */
#define GDB_FR_REG1 ((GDB_FR_REG0) + LONGSIZE) /* 1 */
#define GDB_FR_REG2 ((GDB_FR_REG1) + LONGSIZE) /* 2 */
#define GDB_FR_REG3 ((GDB_FR_REG2) + LONGSIZE) /* 3 */
#define GDB_FR_REG4 ((GDB_FR_REG3) + LONGSIZE) /* 4 */
#define GDB_FR_REG5 ((GDB_FR_REG4) + LONGSIZE) /* 5 */
#define GDB_FR_REG6 ((GDB_FR_REG5) + LONGSIZE) /* 6 */
#define GDB_FR_REG7 ((GDB_FR_REG6) + LONGSIZE) /* 7 */
#define GDB_FR_REG8 ((GDB_FR_REG7) + LONGSIZE) /* 8 */
#define GDB_FR_REG9 ((GDB_FR_REG8) + LONGSIZE) /* 9 */
#define GDB_FR_REG10 ((GDB_FR_REG9) + LONGSIZE) /* 10 */
#define GDB_FR_REG11 ((GDB_FR_REG10) + LONGSIZE) /* 11 */
#define GDB_FR_REG12 ((GDB_FR_REG11) + LONGSIZE) /* 12 */
#define GDB_FR_REG13 ((GDB_FR_REG12) + LONGSIZE) /* 13 */
#define GDB_FR_REG14 ((GDB_FR_REG13) + LONGSIZE) /* 14 */
#define GDB_FR_REG15 ((GDB_FR_REG14) + LONGSIZE) /* 15 */
#define GDB_FR_REG16 ((GDB_FR_REG15) + LONGSIZE) /* 16 */
#define GDB_FR_REG17 ((GDB_FR_REG16) + LONGSIZE) /* 17 */
#define GDB_FR_REG18 ((GDB_FR_REG17) + LONGSIZE) /* 18 */
#define GDB_FR_REG19 ((GDB_FR_REG18) + LONGSIZE) /* 19 */
#define GDB_FR_REG20 ((GDB_FR_REG19) + LONGSIZE) /* 20 */
#define GDB_FR_REG21 ((GDB_FR_REG20) + LONGSIZE) /* 21 */
#define GDB_FR_REG22 ((GDB_FR_REG21) + LONGSIZE) /* 22 */
#define GDB_FR_REG23 ((GDB_FR_REG22) + LONGSIZE) /* 23 */
#define GDB_FR_REG24 ((GDB_FR_REG23) + LONGSIZE) /* 24 */
#define GDB_FR_REG25 ((GDB_FR_REG24) + LONGSIZE) /* 25 */
#define GDB_FR_REG26 ((GDB_FR_REG25) + LONGSIZE) /* 26 */
#define GDB_FR_REG27 ((GDB_FR_REG26) + LONGSIZE) /* 27 */
#define GDB_FR_REG28 ((GDB_FR_REG27) + LONGSIZE) /* 28 */
#define GDB_FR_REG29 ((GDB_FR_REG28) + LONGSIZE) /* 29 */
#define GDB_FR_REG30 ((GDB_FR_REG29) + LONGSIZE) /* 30 */
#define GDB_FR_REG31 ((GDB_FR_REG30) + LONGSIZE) /* 31 */
/*
* Saved special registers
*/
#define GDB_FR_STATUS ((GDB_FR_REG31) + LONGSIZE) /* 32 */
#define GDB_FR_LO ((GDB_FR_STATUS) + LONGSIZE) /* 33 */
#define GDB_FR_HI ((GDB_FR_LO) + LONGSIZE) /* 34 */
#define GDB_FR_BADVADDR ((GDB_FR_HI) + LONGSIZE) /* 35 */
#define GDB_FR_CAUSE ((GDB_FR_BADVADDR) + LONGSIZE) /* 36 */
#define GDB_FR_EPC ((GDB_FR_CAUSE) + LONGSIZE) /* 37 */
/*
* Saved floating point registers
*/
#define GDB_FR_FPR0 ((GDB_FR_EPC) + LONGSIZE) /* 38 */
#define GDB_FR_FPR1 ((GDB_FR_FPR0) + LONGSIZE) /* 39 */
#define GDB_FR_FPR2 ((GDB_FR_FPR1) + LONGSIZE) /* 40 */
#define GDB_FR_FPR3 ((GDB_FR_FPR2) + LONGSIZE) /* 41 */
#define GDB_FR_FPR4 ((GDB_FR_FPR3) + LONGSIZE) /* 42 */
#define GDB_FR_FPR5 ((GDB_FR_FPR4) + LONGSIZE) /* 43 */
#define GDB_FR_FPR6 ((GDB_FR_FPR5) + LONGSIZE) /* 44 */
#define GDB_FR_FPR7 ((GDB_FR_FPR6) + LONGSIZE) /* 45 */
#define GDB_FR_FPR8 ((GDB_FR_FPR7) + LONGSIZE) /* 46 */
#define GDB_FR_FPR9 ((GDB_FR_FPR8) + LONGSIZE) /* 47 */
#define GDB_FR_FPR10 ((GDB_FR_FPR9) + LONGSIZE) /* 48 */
#define GDB_FR_FPR11 ((GDB_FR_FPR10) + LONGSIZE) /* 49 */
#define GDB_FR_FPR12 ((GDB_FR_FPR11) + LONGSIZE) /* 50 */
#define GDB_FR_FPR13 ((GDB_FR_FPR12) + LONGSIZE) /* 51 */
#define GDB_FR_FPR14 ((GDB_FR_FPR13) + LONGSIZE) /* 52 */
#define GDB_FR_FPR15 ((GDB_FR_FPR14) + LONGSIZE) /* 53 */
#define GDB_FR_FPR16 ((GDB_FR_FPR15) + LONGSIZE) /* 54 */
#define GDB_FR_FPR17 ((GDB_FR_FPR16) + LONGSIZE) /* 55 */
#define GDB_FR_FPR18 ((GDB_FR_FPR17) + LONGSIZE) /* 56 */
#define GDB_FR_FPR19 ((GDB_FR_FPR18) + LONGSIZE) /* 57 */
#define GDB_FR_FPR20 ((GDB_FR_FPR19) + LONGSIZE) /* 58 */
#define GDB_FR_FPR21 ((GDB_FR_FPR20) + LONGSIZE) /* 59 */
#define GDB_FR_FPR22 ((GDB_FR_FPR21) + LONGSIZE) /* 60 */
#define GDB_FR_FPR23 ((GDB_FR_FPR22) + LONGSIZE) /* 61 */
#define GDB_FR_FPR24 ((GDB_FR_FPR23) + LONGSIZE) /* 62 */
#define GDB_FR_FPR25 ((GDB_FR_FPR24) + LONGSIZE) /* 63 */
#define GDB_FR_FPR26 ((GDB_FR_FPR25) + LONGSIZE) /* 64 */
#define GDB_FR_FPR27 ((GDB_FR_FPR26) + LONGSIZE) /* 65 */
#define GDB_FR_FPR28 ((GDB_FR_FPR27) + LONGSIZE) /* 66 */
#define GDB_FR_FPR29 ((GDB_FR_FPR28) + LONGSIZE) /* 67 */
#define GDB_FR_FPR30 ((GDB_FR_FPR29) + LONGSIZE) /* 68 */
#define GDB_FR_FPR31 ((GDB_FR_FPR30) + LONGSIZE) /* 69 */
#define GDB_FR_FSR ((GDB_FR_FPR31) + LONGSIZE) /* 70 */
#define GDB_FR_FIR ((GDB_FR_FSR) + LONGSIZE) /* 71 */
#define GDB_FR_FRP ((GDB_FR_FIR) + LONGSIZE) /* 72 */
#define GDB_FR_DUMMY ((GDB_FR_FRP) + LONGSIZE) /* 73, unused ??? */
/*
* Again, CP0 registers
*/
#define GDB_FR_CP0_INDEX ((GDB_FR_DUMMY) + LONGSIZE) /* 74 */
#define GDB_FR_CP0_RANDOM ((GDB_FR_CP0_INDEX) + LONGSIZE) /* 75 */
#define GDB_FR_CP0_ENTRYLO0 ((GDB_FR_CP0_RANDOM) + LONGSIZE)/* 76 */
#define GDB_FR_CP0_ENTRYLO1 ((GDB_FR_CP0_ENTRYLO0) + LONGSIZE)/* 77 */
#define GDB_FR_CP0_CONTEXT ((GDB_FR_CP0_ENTRYLO1) + LONGSIZE)/* 78 */
#define GDB_FR_CP0_PAGEMASK ((GDB_FR_CP0_CONTEXT) + LONGSIZE)/* 79 */
#define GDB_FR_CP0_WIRED ((GDB_FR_CP0_PAGEMASK) + LONGSIZE)/* 80 */
#define GDB_FR_CP0_REG7 ((GDB_FR_CP0_WIRED) + LONGSIZE) /* 81 */
#define GDB_FR_CP0_REG8 ((GDB_FR_CP0_REG7) + LONGSIZE) /* 82 */
#define GDB_FR_CP0_REG9 ((GDB_FR_CP0_REG8) + LONGSIZE) /* 83 */
#define GDB_FR_CP0_ENTRYHI ((GDB_FR_CP0_REG9) + LONGSIZE) /* 84 */
#define GDB_FR_CP0_REG11 ((GDB_FR_CP0_ENTRYHI) + LONGSIZE)/* 85 */
#define GDB_FR_CP0_REG12 ((GDB_FR_CP0_REG11) + LONGSIZE) /* 86 */
#define GDB_FR_CP0_REG13 ((GDB_FR_CP0_REG12) + LONGSIZE) /* 87 */
#define GDB_FR_CP0_REG14 ((GDB_FR_CP0_REG13) + LONGSIZE) /* 88 */
#define GDB_FR_CP0_PRID ((GDB_FR_CP0_REG14) + LONGSIZE) /* 89 */
#define GDB_FR_SIZE ((((GDB_FR_CP0_PRID) + LONGSIZE) + (PTRSIZE-1)) & ~(PTRSIZE-1))
#ifndef __ASSEMBLY__
/*
* This is the same as above, but for the high-level
* part of the GDB stub.
*/
struct gdb_regs {
/*
* Pad bytes for argument save space on the stack
* 24/48 Bytes for 32/64 bit code
*/
unsigned long pad0[6];
/*
* saved main processor registers
*/
long reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7;
long reg8, reg9, reg10, reg11, reg12, reg13, reg14, reg15;
long reg16, reg17, reg18, reg19, reg20, reg21, reg22, reg23;
long reg24, reg25, reg26, reg27, reg28, reg29, reg30, reg31;
/*
* Saved special registers
*/
long cp0_status;
long lo;
long hi;
long cp0_badvaddr;
long cp0_cause;
long cp0_epc;
/*
* Saved floating point registers
*/
long fpr0, fpr1, fpr2, fpr3, fpr4, fpr5, fpr6, fpr7;
long fpr8, fpr9, fpr10, fpr11, fpr12, fpr13, fpr14, fpr15;
long fpr16, fpr17, fpr18, fpr19, fpr20, fpr21, fpr22, fpr23;
long fpr24, fpr25, fpr26, fpr27, fpr28, fpr29, fpr30, fpr31;
long cp1_fsr;
long cp1_fir;
/*
* Frame pointer
*/
long frame_ptr;
long dummy; /* unused */
/*
* saved cp0 registers
*/
long cp0_index;
long cp0_random;
long cp0_entrylo0;
long cp0_entrylo1;
long cp0_context;
long cp0_pagemask;
long cp0_wired;
long cp0_reg7;
long cp0_reg8;
long cp0_reg9;
long cp0_entryhi;
long cp0_reg11;
long cp0_reg12;
long cp0_reg13;
long cp0_reg14;
long cp0_prid;
};
/*
* Prototypes
*/
extern int kgdb_enabled;
void set_debug_traps(void);
void set_async_breakpoint(unsigned long *epc);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_GDB_STUB_H */
