118 lines
3.4 KiB
C++
118 lines
3.4 KiB
C++
#include "bochs.h"
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#ifdef WIN32
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// windows.h included in bochs.h
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#else
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# error "extdb.cc only supported in win32 environment"
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#endif
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#include "iodev/iodev.h"
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#include "extdb.h"
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TRegs regs;
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char debug_loaded = 0;
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void (*call_debugger)(TRegs *,Bit8u *, Bit32u);
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void bx_external_debugger(BX_CPU_C *cpu)
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{
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//printf("Calling debugger state=%d\n",regs.debug_state);
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switch (regs.debug_state) {
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case debug_run:
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return;
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case debug_count:
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if (--regs.debug_counter) return;
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regs.debug_state = debug_step;
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break;
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case debug_skip:
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if (cpu->dword.eip != regs.debug_eip ||
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cpu->sregs[1].selector.value != regs.debug_cs) return;
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regs.debug_state = debug_step;
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break;
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}
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#if BX_SUPPORT_X86_64
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regs.rax = cpu->gen_reg[0].rrx;
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regs.rcx = cpu->gen_reg[1].rrx;
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regs.rdx = cpu->gen_reg[2].rrx;
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regs.rbx = cpu->gen_reg[3].rrx;
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regs.rsp = cpu->gen_reg[4].rrx;
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regs.rbp = cpu->gen_reg[5].rrx;
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regs.rsi = cpu->gen_reg[6].rrx;
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regs.rdi = cpu->gen_reg[7].rrx;
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regs.r8 = cpu->gen_reg[8].rrx;
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regs.r9 = cpu->gen_reg[9].rrx;
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regs.r10 = cpu->gen_reg[10].rrx;
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regs.r11 = cpu->gen_reg[11].rrx;
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regs.r12 = cpu->gen_reg[12].rrx;
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regs.r13 = cpu->gen_reg[13].rrx;
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regs.r14 = cpu->gen_reg[14].rrx;
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regs.r15 = cpu->gen_reg[15].rrx;
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regs.rip = cpu->rip;
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#else
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regs.rax = cpu->gen_reg[0].dword.erx;
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regs.rcx = cpu->gen_reg[1].dword.erx;
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regs.rdx = cpu->gen_reg[2].dword.erx;
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regs.rbx = cpu->gen_reg[3].dword.erx;
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regs.rsp = cpu->gen_reg[4].dword.erx;
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regs.rbp = cpu->gen_reg[5].dword.erx;
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regs.rsi = cpu->gen_reg[6].dword.erx;
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regs.rdi = cpu->gen_reg[7].dword.erx;
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regs.r8 = 0;
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regs.r9 = 0;
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regs.r10 = 0;
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regs.r11 = 0;
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regs.r12 = 0;
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regs.r13 = 0;
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regs.r14 = 0;
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regs.r15 = 0;
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regs.rip = cpu->dword.eip;
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#endif
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regs.rflags = cpu->read_eflags();
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regs.es = cpu->sregs[0].selector.value;
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regs.cs = cpu->sregs[1].selector.value;
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regs.ss = cpu->sregs[2].selector.value;
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regs.ds = cpu->sregs[3].selector.value;
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regs.fs = cpu->sregs[4].selector.value;
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regs.gs = cpu->sregs[5].selector.value;
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regs.gdt.base = cpu->gdtr.base;
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regs.gdt.limit = cpu->gdtr.limit;
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regs.idt.base = cpu->idtr.base;
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regs.idt.limit = cpu->idtr.limit;
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regs.ldt = cpu->ldtr.selector.value;
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regs.cr0 = cpu->cr0.val32;
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regs.cr1 = cpu->cr1;
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regs.cr2 = cpu->cr2;
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regs.cr3 = cpu->cr3;
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#if BX_CPU_LEVEL >= 4
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regs.cr4 = cpu->cr4.getRegister();
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#endif
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//regs.cr5 = cpu->cr5;
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//regs.cr6 = cpu->cr6;
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//regs.cr7 = cpu->cr7;
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regs.fsbase = cpu->sregs[BX_SEG_REG_FS].cache.u.segment.base;
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regs.gsbase = cpu->sregs[BX_SEG_REG_GS].cache.u.segment.base;
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#if BX_SUPPORT_X86_64
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regs.efer = (BX_CPU_THIS_PTR msr.sce << 0)
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| (BX_CPU_THIS_PTR msr.lme << 8)
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| (BX_CPU_THIS_PTR msr.lma << 10);
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#else
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regs.efer = 0;
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#endif
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if (debug_loaded == 0) {
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HINSTANCE hdbg;
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debug_loaded = 1;
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hdbg = LoadLibrary("debug.dll");
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call_debugger = (void (*)(TRegs *,Bit8u *, Bit32u)) GetProcAddress(hdbg,"call_debugger");
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if (call_debugger != NULL) debug_loaded = 2;
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}
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if (debug_loaded == 2) {
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DEV_vga_refresh();
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call_debugger(®s,cpu->mem->vector,cpu->mem->len);
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}
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}
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