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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;
/* The register snapshot, this must be in sync with interrupt handler and the
* GDB protocol. */
enum {
GDBMACH_EAX,
GDBMACH_ECX,
GDBMACH_EDX,
GDBMACH_EBX,
GDBMACH_ESP,
GDBMACH_EBP,
GDBMACH_ESI,
GDBMACH_EDI,
GDBMACH_EIP,
GDBMACH_EFLAGS,
GDBMACH_CS,
GDBMACH_SS,
GDBMACH_DS,
GDBMACH_ES,
GDBMACH_FS,
GDBMACH_GS,
GDBMACH_NREGS,
GDBMACH_SIZEOF_REGS = GDBMACH_NREGS * sizeof ( gdbreg_t )
};
/* Breakpoint types */
enum {
GDBMACH_BPMEM,
GDBMACH_BPHW,
GDBMACH_WATCH,
GDBMACH_RWATCH,
GDBMACH_AWATCH,
};
/* Interrupt 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_EIP ] = pc;
}
static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
regs [ GDBMACH_EFLAGS ] &= ~( 1 << 8 ); /* Trace Flag (TF) */
regs [ GDBMACH_EFLAGS ] |= ( 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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