73 lines
1.4 KiB
C
73 lines
1.4 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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/* The register snapshot, this must be in sync with interrupt handler and the
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* GDB protocol. */
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enum {
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GDBMACH_EAX,
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GDBMACH_ECX,
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GDBMACH_EDX,
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GDBMACH_EBX,
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GDBMACH_ESP,
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GDBMACH_EBP,
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GDBMACH_ESI,
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GDBMACH_EDI,
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GDBMACH_EIP,
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GDBMACH_EFLAGS,
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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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GDBMACH_SIZEOF_REGS = GDBMACH_NREGS * sizeof ( gdbreg_t )
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};
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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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/* Interrupt 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_EIP ] = 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_EFLAGS ] &= ~( 1 << 8 ); /* Trace Flag (TF) */
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regs [ GDBMACH_EFLAGS ] |= ( 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, int enable );
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extern void gdbmach_init ( void );
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#endif /* GDBMACH_H */
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