81 lines
1.5 KiB
C
81 lines
1.5 KiB
C
#ifndef GDBMACH_H
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#define GDBMACH_H
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/** @file
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*
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* GDB architecture specifics
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*
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* This file declares functions for manipulating the machine state and
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* debugging context.
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*
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*/
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#include <stdint.h>
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typedef unsigned long gdbreg_t;
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/* Register snapshot */
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enum {
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GDBMACH_RAX,
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GDBMACH_RBX,
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GDBMACH_RCX,
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GDBMACH_RDX,
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GDBMACH_RSI,
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GDBMACH_RDI,
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GDBMACH_RBP,
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GDBMACH_RSP,
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GDBMACH_R8,
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GDBMACH_R9,
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GDBMACH_R10,
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GDBMACH_R11,
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GDBMACH_R12,
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GDBMACH_R13,
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GDBMACH_R14,
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GDBMACH_R15,
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GDBMACH_RIP,
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GDBMACH_RFLAGS,
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GDBMACH_CS,
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GDBMACH_SS,
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GDBMACH_DS,
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GDBMACH_ES,
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GDBMACH_FS,
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GDBMACH_GS,
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GDBMACH_NREGS,
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};
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#define GDBMACH_SIZEOF_REGS ( GDBMACH_NREGS * sizeof ( gdbreg_t ) )
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/* Breakpoint types */
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enum {
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GDBMACH_BPMEM,
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GDBMACH_BPHW,
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GDBMACH_WATCH,
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GDBMACH_RWATCH,
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GDBMACH_AWATCH,
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};
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/* Exception vectors */
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extern void gdbmach_sigfpe ( void );
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extern void gdbmach_sigtrap ( void );
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extern void gdbmach_sigstkflt ( void );
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extern void gdbmach_sigill ( void );
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static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
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regs[GDBMACH_RIP] = pc;
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}
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static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
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regs[GDBMACH_RFLAGS] &= ~( 1 << 8 ); /* Trace Flag (TF) */
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regs[GDBMACH_RFLAGS] |= ( step << 8 );
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}
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static inline void gdbmach_breakpoint ( void ) {
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__asm__ __volatile__ ( "int $3\n" );
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}
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extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len,
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int enable );
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extern void gdbmach_init ( void );
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#endif /* GDBMACH_H */
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