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Annotation of qemu/roms/ipxe/src/arch/i386/include/gdbmach.h, revision 1.1

1.1     ! root        1: #ifndef GDBMACH_H
        !             2: #define GDBMACH_H
        !             3: 
        !             4: /** @file
        !             5:  *
        !             6:  * GDB architecture specifics
        !             7:  *
        !             8:  * This file declares functions for manipulating the machine state and
        !             9:  * debugging context.
        !            10:  *
        !            11:  */
        !            12: 
        !            13: #include <stdint.h>
        !            14: 
        !            15: typedef unsigned long gdbreg_t;
        !            16: 
        !            17: /* The register snapshot, this must be in sync with interrupt handler and the
        !            18:  * GDB protocol. */
        !            19: enum {
        !            20:        GDBMACH_EAX,
        !            21:        GDBMACH_ECX,
        !            22:        GDBMACH_EDX,
        !            23:        GDBMACH_EBX,
        !            24:        GDBMACH_ESP,
        !            25:        GDBMACH_EBP,
        !            26:        GDBMACH_ESI,
        !            27:        GDBMACH_EDI,
        !            28:        GDBMACH_EIP,
        !            29:        GDBMACH_EFLAGS,
        !            30:        GDBMACH_CS,
        !            31:        GDBMACH_SS,
        !            32:        GDBMACH_DS,
        !            33:        GDBMACH_ES,
        !            34:        GDBMACH_FS,
        !            35:        GDBMACH_GS,
        !            36:        GDBMACH_NREGS,
        !            37:        GDBMACH_SIZEOF_REGS = GDBMACH_NREGS * sizeof ( gdbreg_t )
        !            38: };
        !            39: 
        !            40: /* Breakpoint types */
        !            41: enum {
        !            42:        GDBMACH_BPMEM,
        !            43:        GDBMACH_BPHW,
        !            44:        GDBMACH_WATCH,
        !            45:        GDBMACH_RWATCH,
        !            46:        GDBMACH_AWATCH,
        !            47: };
        !            48: 
        !            49: static inline void gdbmach_set_pc ( gdbreg_t *regs, gdbreg_t pc ) {
        !            50:        regs [ GDBMACH_EIP ] = pc;
        !            51: }
        !            52: 
        !            53: static inline void gdbmach_set_single_step ( gdbreg_t *regs, int step ) {
        !            54:        regs [ GDBMACH_EFLAGS ] &= ~( 1 << 8 ); /* Trace Flag (TF) */
        !            55:        regs [ GDBMACH_EFLAGS ] |= ( step << 8 );
        !            56: }
        !            57: 
        !            58: static inline void gdbmach_breakpoint ( void ) {
        !            59:        __asm__ __volatile__ ( "int $3\n" );
        !            60: }
        !            61: 
        !            62: extern int gdbmach_set_breakpoint ( int type, unsigned long addr, size_t len, int enable );
        !            63: 
        !            64: #endif /* GDBMACH_H */

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