80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Definitions for the GDB stub server.
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*
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*
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*
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* Authors: RichardG, <richardg867@gmail.com>
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*
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* Copyright 2022 RichardG.
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*/
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#ifndef EMU_GDBSTUB_H
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#define EMU_GDBSTUB_H
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#include <stdint.h>
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#include <86box/mem.h>
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#define GDBSTUB_MEM_READ 0
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#define GDBSTUB_MEM_WRITE 16
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#define GDBSTUB_MEM_AWATCH 32
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enum {
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GDBSTUB_EXEC = 0,
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GDBSTUB_SSTEP = 1,
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GDBSTUB_BREAK = 2,
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GDBSTUB_BREAK_SW = 3,
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GDBSTUB_BREAK_HW = 4,
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GDBSTUB_BREAK_RWATCH = 5,
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GDBSTUB_BREAK_WWATCH = 6,
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GDBSTUB_BREAK_AWATCH = 7
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};
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#ifdef USE_GDBSTUB
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# define GDBSTUB_MEM_ACCESS(addr, access, width) \
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uint32_t gdbstub_page = (addr) >> MEM_GRANULARITY_BITS; \
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if (gdbstub_watch_pages[gdbstub_page >> 6] & (1ULL << (gdbstub_page & 63))) { \
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uint32_t gdbstub_addrs[(width)]; \
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for (int gdbstub_i = 0; gdbstub_i < (width); gdbstub_i++) \
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gdbstub_addrs[gdbstub_i] = (addr) + gdbstub_i; \
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gdbstub_mem_access(gdbstub_addrs, (access) | (width)); \
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}
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# define GDBSTUB_MEM_ACCESS_FAST(addrs, access, width) \
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uint32_t gdbstub_page = (addrs)[0] >> MEM_GRANULARITY_BITS; \
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if (gdbstub_watch_pages[gdbstub_page >> 6] & (1ULL << (gdbstub_page & 63))) \
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gdbstub_mem_access((addrs), (access) | (width));
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extern int gdbstub_step, gdbstub_next_asap;
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extern uint64_t gdbstub_watch_pages[(((uint32_t) -1) >> (MEM_GRANULARITY_BITS + 6)) + 1];
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extern void gdbstub_cpu_init(void);
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extern int gdbstub_instruction(void);
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extern int gdbstub_int3(void);
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extern void gdbstub_mem_access(uint32_t *addrs, int access);
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extern void gdbstub_init(void);
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extern void gdbstub_close(void);
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#else
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# define GDBSTUB_MEM_ACCESS(addr, access, width)
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# define GDBSTUB_MEM_ACCESS_FAST(addrs, access, width)
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# define gdbstub_step 0
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# define gdbstub_next_asap 0
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# define gdbstub_cpu_init()
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# define gdbstub_instruction() 0
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# define gdbstub_int3() 0
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# define gdbstub_init()
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# define gdbstub_close()
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#endif
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#endif
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