7b6c2587a9
Averything that required cpu.h include now has it explicitly and there are a lot of files not dependant by CPU at all which will compile a lot faster now ...
302 lines
8.2 KiB
C++
302 lines
8.2 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id: iodebug.cc,v 1.21 2006-03-06 22:03:16 sshwarts Exp $
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/////////////////////////////////////////////////////////////////////////
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#include "bochs.h"
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#include "cpu/cpu.h"
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#include "iodev.h"
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#if BX_SUPPORT_IODEBUG
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#define BX_IODEBUG_THIS this->
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bx_iodebug_c bx_iodebug;
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struct bx_iodebug_s_type {
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bx_bool enabled;
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unsigned register_select;
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Bit32u registers[2];
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Bit32u monitored_mem_areas_start[BX_IODEBUG_MAX_AREAS];
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Bit32u monitored_mem_areas_end[BX_IODEBUG_MAX_AREAS];
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} bx_iodebug_s;
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bx_iodebug_c::bx_iodebug_c()
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{
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put("IODEBUG");
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settype(IODEBUGLOG);
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}
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void bx_iodebug_c::init(void)
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{
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DEV_register_ioread_handler(this, read_handler, 0x8A00,"BOCHS IODEBUG", 7);
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DEV_register_iowrite_handler(this, write_handler, 0x8A00,"BOCHS IODEBUG", 7);
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DEV_register_iowrite_handler(this, write_handler, 0x8A01,"BOCHS IODEBUG", 7);
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bx_iodebug_s.enabled = 0;
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bx_iodebug_s.register_select = 0;
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for(int i=0;i<BX_IODEBUG_MAX_AREAS;i++) {
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bx_iodebug_s.monitored_mem_areas_start[i] = 0;
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bx_iodebug_s.monitored_mem_areas_end[i] = 0;
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}
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}
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Bit32u bx_iodebug_c::read_handler(void *this_ptr, Bit32u addr, unsigned io_len)
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{
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bx_iodebug_c *bx_iodebug_ptr = (bx_iodebug_c *) this_ptr;
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return bx_iodebug_ptr->read(addr, io_len);
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}
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Bit32u bx_iodebug_c::read(Bit32u addr, unsigned io_len)
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{
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if(bx_iodebug_s.enabled) return(0x8A00);
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return(0);
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}
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void bx_iodebug_c::write_handler(void *this_ptr, Bit32u addr, Bit32u dvalue, unsigned io_len)
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{
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bx_iodebug_c *bx_iodebug_ptr = (bx_iodebug_c *) this_ptr;
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bx_iodebug_ptr->write(addr, dvalue, io_len);
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}
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void bx_iodebug_c::write(Bit32u addr, Bit32u dvalue, unsigned io_len)
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{
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// fprintf(stderr, "IODEBUG addr: %4x\tdvalue: %8x\tio_len: %8x\n", (unsigned) addr, (unsigned) dvalue, io_len);
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if(addr == 0x8A01 && io_len == 2)
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{
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bx_iodebug_s.registers[bx_iodebug_s.register_select] =
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(bx_iodebug_s.registers[bx_iodebug_s.register_select] << 16) +
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(dvalue & 0xFFFF);
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}
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if((addr != 0x8A00) || (io_len != 2)) return;
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if(! bx_iodebug_s.enabled)
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{
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if(dvalue == 0x8A00)
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{
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bx_iodebug_s.enabled = 1;
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// fprintf(stderr, "IODEBUG enabled\n");
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bx_iodebug_s.registers[0] = 0;
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bx_iodebug_s.registers[1] = 0;
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}
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return;
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}
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switch(dvalue)
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{
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case 0x8A01:
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bx_iodebug_s.register_select = 0;
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// fprintf(stderr, "IODEBUG register 0 selected\n");
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break;
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case 0x8A02:
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bx_iodebug_s.register_select = 1;
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// fprintf(stderr, "IODEBUG register 1 selected\n");
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break;
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case 0x8A80:
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bx_iodebug_s.register_select = 0;
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bx_iodebug_c::add_range(bx_iodebug_s.registers[0],
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bx_iodebug_s.registers[1]);
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bx_iodebug_s.registers[0] = 0;
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bx_iodebug_s.registers[1] = 0;
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break;
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#if BX_DEBUGGER
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case 0x8AE0:
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fprintf(stderr, "request return to dbg prompt received, 0x8AE0 command (iodebug)\n");
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bx_guard.interrupt_requested=1;
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break;
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case 0x8AE2:
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fprintf(stderr, "request made by the guest os to disable tracing, iodebug port 0x8A00->0x8AE2\n");
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BX_CPU(dbg_cpu)->trace = 0;
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break;
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case 0x8AE3:
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fprintf(stderr, "request made by the guest os to enable tracing, iodebug port 0x8A00->0x8AE3\n");
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BX_CPU(dbg_cpu)->trace = 1;
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break;
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case 0x8AE4:
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fprintf(stderr, "request made by the guest os to disable register tracing, iodebug port 0x8A00->0x8AE4\n");
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BX_CPU(dbg_cpu)->trace_reg = 0;
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break;
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case 0x8AE5:
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fprintf(stderr, "request made by the guest os to enable register tracing, iodebug port 0x8A00->0x8AE5\n");
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BX_CPU(dbg_cpu)->trace_reg = 1;
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break;
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#endif
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case 0x8AFF:
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bx_iodebug_s.enabled = 0;
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// fprintf(stderr, "IODEBUG device deactivated\n");
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// break;
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// default:
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// fprintf(stderr,"IODEBUG unsupported register code\n");
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}
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}
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// Static function
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void bx_iodebug_c::mem_write(BX_CPU_C *cpu, Bit32u addr, unsigned len, void *data)
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{
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if(! bx_iodebug_s.enabled) return;
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unsigned area = bx_iodebug_c::range_test(addr, len);
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// Device is enabled, testing address ranges
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if(area)
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{
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area--;
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#if BX_DEBUGGER
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if (cpu != NULL)
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fprintf(stdout, "IODEBUG %s @ eip: " FMT_ADDRX " write at monitored memory location %8X\n", cpu->name, cpu->get_ip(), addr);
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else
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fprintf(stdout, "IODEBUG write at monitored memory location %8X\n", addr);
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bx_guard.interrupt_requested=1;
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#else
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fprintf(stderr, "IODEBUG write to monitored memory area: %2i\t", area);
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if (cpu != NULL)
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fprintf(stderr, "by EIP:\t\t" FMT_ADDRX "\n\t", cpu->get_ip());
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else
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fprintf(stderr, "(device origin)\t", cpu->get_ip());
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fprintf(stderr, "range start: \t\t%08X\trange end:\t%08X\n\taddress accessed:\t%08X\tdata written:\t",
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bx_iodebug_s.monitored_mem_areas_start[area],
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bx_iodebug_s.monitored_mem_areas_end[area],
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(unsigned) addr);
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switch(len)
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{
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case 1: {
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Bit8u data8 = * ((Bit8u *) data);
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fprintf(stderr,"%02X\n", (unsigned) data8);
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break;
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}
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case 2: {
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Bit16u data16 = * ((Bit16u *) data);
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fprintf(stderr,"%04X\n", (unsigned) data16);
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break;
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}
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case 4: {
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Bit32u data32 = * ((Bit32u *) data);
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fprintf(stderr,"%08X\n", (unsigned) data32);
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break;
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}
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case 8: {
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Bit64u data64 = * ((Bit64u *) data);
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fprintf(stderr,"%08X%08x\n",
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(unsigned) (data64 >> 32),
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(unsigned) (data64 & 0xffffffff));
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break;
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}
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default:
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fprintf(stderr, "unsupported write size\n");
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}
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#endif
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}
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}
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void bx_iodebug_c::mem_read(BX_CPU_C *cpu, Bit32u addr, unsigned len, void *data)
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{
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if(! bx_iodebug_s.enabled) return;
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unsigned area = bx_iodebug_c::range_test(addr, len);
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// Device is enabled, testing address ranges
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if(area)
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{
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area--;
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#if BX_DEBUGGER
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if (cpu != NULL)
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fprintf(stdout, "IODEBUG %s @ eip: " FMT_ADDRX " read at monitored memory location %8X\n", cpu->name, cpu->get_ip(), addr);
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else
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fprintf(stdout, "IODEBUG read at monitored memory location %8X\n", addr);
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bx_guard.interrupt_requested=1;
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#else
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fprintf(stderr, "IODEBUG read at monitored memory area: %2i\t", area);
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if (cpu != NULL)
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fprintf(stderr, "by EIP:\t\t" FMT_ADDRX "\n\t", cpu->get_ip());
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else
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fprintf(stderr, "(device origin)\t", cpu->get_ip());
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fprintf(stderr, "range start: \t\t%08X\trange end:\t%08X\n\taddress accessed:\t%08X\tdata written:\t",
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bx_iodebug_s.monitored_mem_areas_start[area],
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bx_iodebug_s.monitored_mem_areas_end[area],
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(unsigned) addr);
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switch(len)
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{
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case 1: {
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Bit8u data8 = * ((Bit8u *) data);
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fprintf(stderr,"%02X\n", (unsigned) data8);
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break;
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}
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case 2: {
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Bit16u data16 = * ((Bit16u *) data);
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fprintf(stderr,"%04X\n", (unsigned) data16);
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break;
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}
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case 4: {
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Bit32u data32 = * ((Bit32u *) data);
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fprintf(stderr,"%08X\n", (unsigned) data32);
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break;
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}
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case 8: {
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Bit64u data64 = * ((Bit64u *) data);
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fprintf(stderr,"%08X%08x\n",
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(unsigned) (data64 >> 32),
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(unsigned) (data64 & 0xffffffff));
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break;
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}
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default:
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fprintf(stderr, "unsupported read size\n");
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}
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#endif
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}
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}
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unsigned bx_iodebug_c::range_test(Bit32u addr, unsigned len)
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{
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for(unsigned i=0;i<BX_IODEBUG_MAX_AREAS;i++)
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{
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if((bx_iodebug_s.monitored_mem_areas_start[i]!=0) ||
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(bx_iodebug_s.monitored_mem_areas_end[i]!=0))
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{
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if((Bit32u)(addr+len-1) < bx_iodebug_s.monitored_mem_areas_start[i])
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continue;
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if(addr < bx_iodebug_s.monitored_mem_areas_end[i])
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{
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return(++i);
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}
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}
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}
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return(0);
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}
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void bx_iodebug_c::add_range(Bit32u addr_start, Bit32u addr_end)
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{
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for(unsigned i=0;i<BX_IODEBUG_MAX_AREAS;i++)
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{
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if( !bx_iodebug_s.monitored_mem_areas_start[i] &&
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!bx_iodebug_s.monitored_mem_areas_end[i] )
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{
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bx_iodebug_s.monitored_mem_areas_start[i] = addr_start;
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bx_iodebug_s.monitored_mem_areas_end[i] = addr_end;
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// fprintf(stderr, "IODEBUG added range successfully in slot: %i\n",i);
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return;
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}
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}
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// fprintf(stderr, "IODEBUG unable to register memory range, all slots taken\n");
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}
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#endif /* if BX_SUPPORT_IODEBUG */
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