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