| #ifndef _ASM_KGDB_H_ |
| #define _ASM_KGDB_H_ |
| |
| /* |
| * Copyright (C) 2001-2004 Amit S. Kale |
| * Copyright (C) 2008 Wind River Systems, Inc. |
| */ |
| |
| /* |
| * BUFMAX defines the maximum number of characters in inbound/outbound |
| * buffers at least NUMREGBYTES*2 are needed for register packets |
| * Longer buffer is needed to list all threads |
| */ |
| #define BUFMAX 1024 |
| |
| /* |
| * Note that this register image is in a different order than |
| * the register image that Linux produces at interrupt time. |
| * |
| * Linux's register image is defined by struct pt_regs in ptrace.h. |
| * Just why GDB uses a different order is a historical mystery. |
| */ |
| #ifdef CONFIG_X86_32 |
| enum regnames { |
| GDB_AX, /* 0 */ |
| GDB_CX, /* 1 */ |
| GDB_DX, /* 2 */ |
| GDB_BX, /* 3 */ |
| GDB_SP, /* 4 */ |
| GDB_BP, /* 5 */ |
| GDB_SI, /* 6 */ |
| GDB_DI, /* 7 */ |
| GDB_PC, /* 8 also known as eip */ |
| GDB_PS, /* 9 also known as eflags */ |
| GDB_CS, /* 10 */ |
| GDB_SS, /* 11 */ |
| GDB_DS, /* 12 */ |
| GDB_ES, /* 13 */ |
| GDB_FS, /* 14 */ |
| GDB_GS, /* 15 */ |
| }; |
| #define NUMREGBYTES ((GDB_GS+1)*4) |
| #else /* ! CONFIG_X86_32 */ |
| enum regnames64 { |
| GDB_AX, /* 0 */ |
| GDB_BX, /* 1 */ |
| GDB_CX, /* 2 */ |
| GDB_DX, /* 3 */ |
| GDB_SI, /* 4 */ |
| GDB_DI, /* 5 */ |
| GDB_BP, /* 6 */ |
| GDB_SP, /* 7 */ |
| GDB_R8, /* 8 */ |
| GDB_R9, /* 9 */ |
| GDB_R10, /* 10 */ |
| GDB_R11, /* 11 */ |
| GDB_R12, /* 12 */ |
| GDB_R13, /* 13 */ |
| GDB_R14, /* 14 */ |
| GDB_R15, /* 15 */ |
| GDB_PC, /* 16 */ |
| }; |
| |
| enum regnames32 { |
| GDB_PS = 34, |
| GDB_CS, |
| GDB_SS, |
| }; |
| #define NUMREGBYTES ((GDB_SS+1)*4) |
| #endif /* CONFIG_X86_32 */ |
| |
| static inline void arch_kgdb_breakpoint(void) |
| { |
| asm(" int $3"); |
| } |
| #define BREAK_INSTR_SIZE 1 |
| #define CACHE_FLUSH_IS_SAFE 1 |
| |
| #endif /* _ASM_KGDB_H_ */ |
