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

1.1     ! root        1: #ifndef BIOSINT_H
        !             2: #define BIOSINT_H
        !             3: 
        !             4: /**
        !             5:  * @file BIOS interrupts
        !             6:  *
        !             7:  */
        !             8: 
        !             9: FILE_LICENCE ( GPL2_OR_LATER );
        !            10: 
        !            11: #include <realmode.h>
        !            12: 
        !            13: struct segoff;
        !            14: 
        !            15: /**
        !            16:  * Hooked interrupt count
        !            17:  *
        !            18:  * At exit, after unhooking all possible interrupts, this counter
        !            19:  * should be examined.  If it is non-zero, it means that we failed to
        !            20:  * unhook at least one interrupt vector, and so must not free up the
        !            21:  * memory we are using.  (Note that this also implies that we should
        !            22:  * re-hook INT 15 in order to hide ourselves from the memory map).
        !            23:  */
        !            24: extern uint16_t __text16 ( hooked_bios_interrupts );
        !            25: #define hooked_bios_interrupts __use_text16 ( hooked_bios_interrupts )
        !            26: 
        !            27: extern void hook_bios_interrupt ( unsigned int interrupt, unsigned int handler,
        !            28:                                  struct segoff *chain_vector );
        !            29: extern int unhook_bios_interrupt ( unsigned int interrupt,
        !            30:                                   unsigned int handler,
        !            31:                                   struct segoff *chain_vector );
        !            32: 
        !            33: #endif /* BIOSINT_H */

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