mirror of https://github.com/bochs-emu/Bochs
4089 lines
115 KiB
C++
4089 lines
115 KiB
C++
// Copyright (C) 2000 MandrakeSoft S.A.
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//
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// MandrakeSoft S.A.
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// 43, rue d'Aboukir
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// 75002 Paris - France
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// http://www.linux-mandrake.com/
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// http://www.mandrakesoft.com/
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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extern "C" {
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#include <signal.h>
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}
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#include "bochs.h"
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static unsigned doit = 0;
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#define SIM_NAME0 "bochs"
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#ifndef SIM_NAME1_STR
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#define SIM_NAME1_STR "sim1"
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#endif
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#define SIM_NAME(x) ((x == 0) ? SIM_NAME0 : SIM_NAME1_STR)
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static void bx_dbg_usage(void);
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static char bx_debug_rc_fname[BX_MAX_PATH];
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static char tmp_buf[512];
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static char *tmp_buf_ptr;
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static char *argv0 = NULL;
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#if BX_NUM_SIMULATORS >= 2
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#define BX_DBG_IO_JOURNAL_SIZE 1024
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#define BX_DBG_UCMEM_JOURNAL_SIZE 1024
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#define BX_DBG_ASYNC_JOURNAL_SIZE 1024
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#define BX_DBG_MASTER_MODE 10
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#define BX_DBG_SLAVE_MODE 11
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// #define BX_DBG_DEFAULT_ICOUNT_QUANTUM 50
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#define BX_DBG_DEFAULT_ICOUNT_QUANTUM 3 /* mch */
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static unsigned bx_dbg_cosimulateN(bx_dbg_icount_t count);
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static int bx_dbg_compare_sim_iaddr(void);
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static Boolean bx_dbg_compare_sim_cpu(void);
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static Boolean bx_dbg_compare_sim_memory(void);
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static void bx_dbg_journal_a20_event(unsigned val);
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#endif
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static struct {
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#if BX_NUM_SIMULATORS >= 2
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// some fields used only for cosimulation
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unsigned icount_quantum;
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unsigned master_slave_mode;
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unsigned master, slave;
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struct {
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struct {
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Bit8u op;
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Bit8u len;
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Bit16u addr;
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Bit32u value;
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} element[BX_DBG_IO_JOURNAL_SIZE];
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unsigned size;
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unsigned head, tail;
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} IO_journal;
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struct {
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struct {
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Bit8u op;
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Bit8u len;
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Bit32u addr;
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Bit32u value;
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} element[BX_DBG_UCMEM_JOURNAL_SIZE];
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unsigned size;
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unsigned head, tail;
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} UCmem_journal;
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// need to handle DMA stuff in here...
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#define BX_DBG_ASYNC_JOURNAL_NONE 0
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#define BX_DBG_ASYNC_JOURNAL_A20 1
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#define BX_DBG_ASYNC_JOURNAL_IAC 2
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#define BX_DBG_ASYNC_JOURNAL_NMI 3
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#define BX_DBG_ASYNC_JOURNAL_RESET 4
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// Asynchronous events at the boundaries they are *taken* by the master simulator.
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// These are replayed back to the slave at the same boundaries.
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struct {
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struct {
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unsigned what; // A20, INTR, NMI, RESET, IAC, ...
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bx_dbg_icount_t icount;
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union {
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struct {
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unsigned val;
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} a20, nmi, reset, iac;
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// perhaps other more complex types here
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} u;
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} element[BX_DBG_ASYNC_JOURNAL_SIZE];
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unsigned size;
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unsigned head, tail;
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} async_journal;
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struct {
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Boolean iaddr;
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Boolean cpu;
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Boolean memory;
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} compare_at_sync;
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Boolean fast_forward_mode;
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#endif // #if BX_NUM_SIMULATORS >= 2
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// some fields used for single CPU debugger
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Boolean auto_disassemble;
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unsigned disassemble_size;
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char default_display_format;
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char default_unit_size;
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Bit32u default_addr;
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unsigned next_bpoint_id;
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// last icount known to be in sync
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#if BX_DBG_ICOUNT_SIZE == 32
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Bit32u last_sync_icount;
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#else // BX_DBG_ICOUNT_SIZE == 64
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Bit64u last_sync_icount;
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#endif
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} bx_debugger;
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// cosim commands for handling of comparison of simulator
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// environments when both simulators have reached a common
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// point (synchronized).
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// cosim compare_at_sync iaddr (default is on)
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// cosim compare_at_sync cpu (default is off)
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// cosim compare_at_sync memory (default is off)
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// cosim compare iaddr
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// cosim compare cpu
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// cosim compare memory
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typedef struct {
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FILE *fp;
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char fname[BX_MAX_PATH];
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unsigned lineno;
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} bx_infile_stack_entry_t;
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bx_infile_stack_entry_t bx_infile_stack[BX_INFILE_DEPTH];
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int bx_infile_stack_index = 0;
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static int bx_nest_infile(char *path);
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static void bx_debug_ctrlc_handler(int signum);
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static void bx_unnest_infile(void);
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static void bx_get_command(void);
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static void bx_dbg_print_guard_results(void);
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static void bx_dbg_breakpoint_changed(void);
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bx_dbg_callback_t bx_dbg_callback[BX_NUM_SIMULATORS];
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bx_guard_t bx_guard;
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bx_guard_found_t bx_guard_found[BX_NUM_SIMULATORS];
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// DMA stuff
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void bx_dbg_post_dma_reports(void);
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#define BX_BATCH_DMA_BUFSIZE 512
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static struct {
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unsigned this_many; // batch this many max before posting events
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unsigned Qsize; // this many have been batched
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struct {
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Bit32u addr; // address of DMA op
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unsigned len; // number of bytes in op
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unsigned what; // BX_READ or BX_WRITE
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Bit32u val; // value of DMA op
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bx_dbg_icount_t icount; // icount at this dma op
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} Q[BX_BATCH_DMA_BUFSIZE];
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} bx_dbg_batch_dma;
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// some buffers for disassembly
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#if BX_DISASM
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static Bit8u bx_disasm_ibuf[32];
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static char bx_disasm_tbuf[512];
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#endif
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int
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bx_dbg_main(int argc, char *argv[])
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{
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int i, bochs_argc=0, sim1_argc=0, sim2_argc=0;
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char **bochs_argv = NULL;
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char **sim1_argv = NULL;
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char **sim2_argv = NULL;
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argc = 1;
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bx_dbg_batch_dma.this_many = 1;
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bx_dbg_batch_dma.Qsize = 0;
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// initialize callback functions, and guard environment
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memset(bx_dbg_callback, 0, sizeof(bx_dbg_callback));
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memset(&bx_guard, 0, sizeof(bx_guard));
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bx_guard.async.irq = 1;
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bx_guard.async.dma = 1;
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memset(bx_guard_found, 0, sizeof(bx_guard_found));
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memset(&bx_debugger, 0, sizeof(bx_debugger));
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#if BX_NUM_SIMULATORS >= 2
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bx_debugger.icount_quantum = BX_DBG_DEFAULT_ICOUNT_QUANTUM;
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bx_debugger.IO_journal.size = 0;
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bx_debugger.IO_journal.head = 0;
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bx_debugger.IO_journal.tail = 0;
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bx_debugger.UCmem_journal.size = 0;
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bx_debugger.UCmem_journal.head = 0;
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bx_debugger.UCmem_journal.tail = 0;
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bx_debugger.async_journal.size = 0;
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bx_debugger.async_journal.head = 0;
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bx_debugger.async_journal.tail = 0;
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bx_debugger.master = 0;
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bx_debugger.slave = 1;
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bx_debugger.compare_at_sync.iaddr = 1;
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bx_debugger.fast_forward_mode = 0;
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#endif
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bx_debugger.auto_disassemble = 1;
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bx_debugger.disassemble_size = 32;
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bx_debugger.default_display_format = 'x';
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bx_debugger.default_unit_size = 'w';
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bx_debugger.default_addr = 0;
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bx_debugger.next_bpoint_id = 1;
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bx_debugger.last_sync_icount = 0;
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argv0 = strdup(argv[0]);
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bx_debug_rc_fname[0] = '\0';
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bochs_argv = (char **) &argv[0];
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sim1_argv = bochs_argv; // start out with something reasonable
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sim2_argv = bochs_argv; // start out with something reasonable
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bochs_argc = 1;
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sim1_argc = 1;
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sim2_argc = 1;
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// process "-rc pathname" option, if it exists
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i = 1;
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if ( (argc >= 2) && !strcmp(argv[1], "-rc") ) {
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if ( argc == 2 ) {
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fprintf(stderr, "%s: -rc option used, but no path specified.\n",
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argv[0]);
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bx_dbg_usage();
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exit(1);
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}
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strncpy(bx_debug_rc_fname, argv[2], BX_MAX_PATH-1);
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i += 2; // skip past "-rc" and filename
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bochs_argv = (char **) &argv[2];
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}
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// process options to bochs framework
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for (; i<argc; i++) {
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if (strcmp(argv[i], "-sim1") == 0) {
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break;
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}
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else if (strcmp(argv[i], "-sim2") == 0) {
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break;
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}
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bochs_argc++;
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}
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if (i<argc) { // more args to process
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// process options to each CPU simulator
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if (strcmp(argv[i], "-sim1") == 0) {
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process_sim1:
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sim1_argv = (char **) &argv[i];
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i++;
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for (; i<argc; i++) {
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if (strcmp(argv[i], "-sim2") == 0)
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goto process_sim2;
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sim1_argc++;
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}
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}
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else if (strcmp(argv[i], "-sim2") == 0) {
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process_sim2:
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sim2_argv = (char **) &argv[i];
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i++;
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for (; i<argc; i++) {
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if (strcmp(argv[i], "-sim1") == 0)
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goto process_sim1;
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sim2_argc++;
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}
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}
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}
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bx_infile_stack_index = 0;
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bx_infile_stack[0].fp = stdin;
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strncpy(bx_infile_stack[0].fname, argv[0], BX_MAX_PATH);
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bx_infile_stack[0].fname[BX_MAX_PATH-1] = 0;
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bx_infile_stack[0].lineno = 0;
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if (bx_debug_rc_fname[0] == '\0') {
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fprintf(stderr, "%s: Warning: no rc file specified.\n", argv[0]);
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}
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else {
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fprintf(stderr, "%s: using rc file '%s'.\n", argv[0], bx_debug_rc_fname);
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// if there's an error, the user will know about it before proceeding
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(void) bx_nest_infile(bx_debug_rc_fname);
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}
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#if BX_DISASM
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memset(bx_disasm_ibuf, 0, sizeof(bx_disasm_ibuf));
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#endif
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BX_SIM1_INIT(&bx_dbg_callback[0], sim1_argc, sim1_argv);
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#if BX_NUM_SIMULATORS > 1
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BX_SIM2_INIT(&bx_dbg_callback[1], sim2_argc, sim2_argv);
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#endif
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// call init routine for overall framework and IO device setup
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bx_bochs_init(bochs_argc, bochs_argv);
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#if BX_NUM_SIMULATORS >= 2
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bx_debugger.compare_at_sync.cpu = 0;
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bx_debugger.compare_at_sync.memory = 0;
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#endif
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// call init routines for each CPU+mem simulator
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bx_dbg_callback[0].reset_cpu(BX_RESET_HARDWARE);
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bx_dbg_callback[0].init_mem(bx_options.memory.megs * 1024*1024);
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bx_dbg_callback[0].load_ROM(bx_options.rom.path, bx_options.rom.address);
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bx_dbg_callback[0].load_ROM(bx_options.vgarom.path, 0xc0000);
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#if BX_NUM_SIMULATORS > 1
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bx_dbg_callback[1].reset_cpu(BX_RESET_HARDWARE);
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bx_dbg_callback[1].init_mem(bx_options.memory.megs * 1024*1024);
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bx_dbg_callback[1].load_ROM(bx_options.rom.path, bx_options.rom.address);
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bx_dbg_callback[1].load_ROM(bx_options.vgarom.path, 0xc0000);
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#endif
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// (mch) Moved from main.cc
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bx_devices.init();
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bx_pc_system.start_timers();
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// setup Ctrl-C handler
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signal(SIGINT, bx_debug_ctrlc_handler);
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bx_dbg_user_input_loop();
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bx_dbg_exit(0);
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return(0); // keep compiler happy
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}
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void
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bx_dbg_usage(void)
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{
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fprintf(stderr, "usage: %s [-rc path] [-sim1 ... ] [-sim2 ... ]\n", argv0);
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}
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void
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bx_dbg_user_input_loop(void)
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{
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int reti;
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unsigned include_cmd_len = strlen(BX_INCLUDE_CMD);
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while ( 1 ) {
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bx_get_command();
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if ( (*tmp_buf_ptr == '\n') || (*tmp_buf_ptr == 0) ) {
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if (bx_infile_stack_index == 0)
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fprintf(stderr, "\n");
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}
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else if ( (strncmp(tmp_buf_ptr, BX_INCLUDE_CMD, include_cmd_len) == 0) &&
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(tmp_buf_ptr[include_cmd_len] == ' ' ||
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tmp_buf_ptr[include_cmd_len] == '\t') ) {
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char *ptr;
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int len;
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ptr = tmp_buf_ptr + include_cmd_len+1;
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while ( *ptr==' ' || *ptr=='\t' )
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ptr++;
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len = strlen(ptr);
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if (len == 0) {
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fprintf(stderr, "%s: no filename given to 'source' command.\n", argv0);
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if (bx_infile_stack_index > 0) {
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fprintf(stderr, "%s: ERROR in source file causes exit.\n", argv0);
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bx_dbg_exit(1);
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}
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continue;
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}
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ptr[len-1] = 0; // get rid of newline
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reti = bx_nest_infile(ptr);
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if ((reti==0) && (bx_infile_stack_index > 0)) {
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fprintf(stderr, "%s: ERROR in source file causes exit.\n", argv0);
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bx_dbg_exit(1);
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}
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}
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else {
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// Give a chance to the command line extensions, to
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// consume the command. If they return 0, then
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// we need to process the command. A return of 1
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// means, the extensions have handled the command
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if ( bx_dbg_extensions(tmp_buf_ptr)==0 ) {
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// process command here
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bx_add_lex_input(tmp_buf_ptr);
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bxparse();
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}
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}
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}
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}
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void
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bx_get_command(void)
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{
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char *charptr_ret;
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bx_infile_stack[bx_infile_stack_index].lineno++;
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if (bx_infile_stack_index == 0) {
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fprintf(stderr, "<bochs:%d> ", bx_infile_stack[bx_infile_stack_index].lineno);
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}
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charptr_ret = fgets(tmp_buf, 512,
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bx_infile_stack[bx_infile_stack_index].fp);
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if (charptr_ret == NULL) {
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// see if error was due to EOF condition
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if (feof(bx_infile_stack[bx_infile_stack_index].fp)) {
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if (bx_infile_stack_index > 0) {
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// nested level of include files, pop back to previous one
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bx_unnest_infile();
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}
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else {
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// not nested, sitting at stdin prompt, user wants out
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bx_dbg_quit_command();
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}
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// call recursively
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bx_get_command();
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return;
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}
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// error was not EOF, see if it was from a Ctrl-C
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if (bx_guard.interrupt_requested) {
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tmp_buf[0] = '\n';
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tmp_buf[1] = 0;
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tmp_buf_ptr = &tmp_buf[0];
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bx_guard.interrupt_requested = 0;
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return;
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}
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fprintf(stderr, "fgets() returned ERROR.\n");
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fprintf(stderr, "intr request was %u\n", bx_guard.interrupt_requested);
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bx_dbg_exit(1);
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}
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tmp_buf_ptr = &tmp_buf[0];
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// look for first non-whitespace character
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while ( ((*tmp_buf_ptr == ' ') || (*tmp_buf_ptr == '\t')) &&
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(*tmp_buf_ptr != '\n') && (*tmp_buf_ptr != 0) ) {
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tmp_buf_ptr++;
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}
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return;
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}
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int
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bx_nest_infile(char *path)
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{
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FILE *tmp_fp;
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tmp_fp = fopen(path, "r");
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if (!tmp_fp) {
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fprintf(stderr, "%s: can not open file '%s' for reading.\n",
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argv0, path);
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return(0);
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}
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if ( (bx_infile_stack_index+1) >= BX_INFILE_DEPTH ) {
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fprintf(stderr, "%s: source files nested too deeply\n", argv0);
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return(0);
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}
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bx_infile_stack_index++;
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bx_infile_stack[bx_infile_stack_index].fp = tmp_fp;
|
|
strncpy(bx_infile_stack[bx_infile_stack_index].fname, path, BX_MAX_PATH);
|
|
bx_infile_stack[bx_infile_stack_index].fname[BX_MAX_PATH-1] = 0;
|
|
bx_infile_stack[bx_infile_stack_index].lineno = 0;
|
|
return(1);
|
|
}
|
|
|
|
void
|
|
bx_unnest_infile(void)
|
|
{
|
|
if (bx_infile_stack_index <= 0) {
|
|
fprintf(stderr, "%s: ERROR: unnest_infile(): nesting level = 0.\n",
|
|
argv0);
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
fclose(bx_infile_stack[bx_infile_stack_index].fp);
|
|
bx_infile_stack_index--;
|
|
}
|
|
|
|
int
|
|
bxwrap(void)
|
|
{
|
|
fprintf(stderr, "%s: ERROR: bxwrap() called.\n", argv0);
|
|
bx_dbg_exit(1);
|
|
return(0); // keep compiler quiet
|
|
}
|
|
|
|
|
|
void
|
|
bxerror(char *s)
|
|
{
|
|
fprintf(stderr, "%s:%d: %s at '%s'\n",
|
|
bx_infile_stack[bx_infile_stack_index].fname,
|
|
bx_infile_stack[bx_infile_stack_index].lineno,
|
|
s, bxtext);
|
|
|
|
if (bx_infile_stack_index > 0) {
|
|
fprintf(stderr, "%s: ERROR in source file causes exit.\n", argv0);
|
|
bx_dbg_exit(1);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_debug_ctrlc_handler(int signum)
|
|
{
|
|
UNUSED(signum);
|
|
|
|
signal(SIGINT, bx_debug_ctrlc_handler);
|
|
bx_guard.interrupt_requested = 1;
|
|
}
|
|
|
|
void
|
|
bx_dbg_exit(int code)
|
|
{
|
|
fprintf(stderr, "before sim1_exit\n");
|
|
bx_dbg_callback[0].atexit();
|
|
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
fprintf(stderr, "before sim2_exit\n");
|
|
bx_dbg_callback[1].atexit();
|
|
#endif
|
|
|
|
bx_atexit();
|
|
|
|
fprintf(stderr, "before exit\n");
|
|
exit(code);
|
|
}
|
|
|
|
|
|
//
|
|
// comands invoked from parser
|
|
//
|
|
|
|
void
|
|
bx_dbg_quit_command(void)
|
|
{
|
|
fprintf(stderr, "Quit\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
void
|
|
bx_dbg_trace_on_command(void)
|
|
{
|
|
fprintf(stderr, "Tracing enabled\n");
|
|
BX_CPU_THIS_PTR trace = 1;
|
|
}
|
|
|
|
void
|
|
bx_dbg_trace_off_command(void)
|
|
{
|
|
fprintf(stderr, "Tracing disabled\n");
|
|
BX_CPU_THIS_PTR trace = 0;
|
|
}
|
|
|
|
void
|
|
bx_dbg_ptime_command(void)
|
|
{
|
|
fprintf(stderr, "ptime: %lld\n", bx_pc_system.time_ticks());
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
fprintf(stderr,
|
|
#if BX_DBG_ICOUNT_SIZE == 32
|
|
"Last synchronized icount was %lu\n",
|
|
(unsigned long) bx_debugger.last_sync_icount
|
|
#else // BX_DBG_ICOUNT_SIZE == 64
|
|
"Last synchronized icount was %Lu\n",
|
|
(unsigned long long) bx_debugger.last_sync_icount
|
|
#endif /* BX_DBG_ICOUNT_SIZE == 32 */
|
|
);
|
|
#endif /* BX_NUM_SIMULATORS >= 2 */
|
|
}
|
|
|
|
int timebp_timer = -1;
|
|
Bit64u timebp_queue[MAX_CONCURRENT_BPS];
|
|
int timebp_queue_size = 0;
|
|
|
|
void
|
|
bx_dbg_timebp_command(Boolean absolute, Bit64u time)
|
|
{
|
|
long long diff = (absolute) ? time - bx_pc_system.time_ticks() : time;
|
|
long long abs_time = (absolute) ? time : time + bx_pc_system.time_ticks();
|
|
|
|
if (diff < 0) {
|
|
fprintf(stderr, "Request for time break point in the past. I can't let you do that.\n");
|
|
return;
|
|
}
|
|
|
|
if (timebp_queue_size == MAX_CONCURRENT_BPS) {
|
|
fprintf(stderr, "Too many time break points\n");
|
|
return;
|
|
}
|
|
|
|
if (timebp_timer >= 0) {
|
|
if (timebp_queue_size == 0 || abs_time < timebp_queue[0]) {
|
|
/* first in queue */
|
|
for (int i = timebp_queue_size; i >= 0; i--)
|
|
timebp_queue[i+1] = timebp_queue[i];
|
|
timebp_queue[0] = abs_time;
|
|
timebp_queue_size++;
|
|
bx_pc_system.activate_timer_ticks(timebp_timer, diff, 1);
|
|
} else {
|
|
/* not first, insert at suitable place */
|
|
for (int i = 1; i < timebp_queue_size; i++) {
|
|
if (timebp_queue[i] == abs_time) {
|
|
fprintf(stderr, "Time breakpoint not inserted (duplicate)\n");
|
|
return;
|
|
} else if (abs_time < timebp_queue[i]) {
|
|
for (int j = timebp_queue_size; j >= i; j++)
|
|
timebp_queue[j+1] = timebp_queue[j];
|
|
timebp_queue[i] = abs_time;
|
|
goto inserted;
|
|
}
|
|
}
|
|
/* last */
|
|
timebp_queue[timebp_queue_size] = abs_time;
|
|
inserted:
|
|
timebp_queue_size++;
|
|
}
|
|
} else {
|
|
timebp_queue_size = 1;
|
|
timebp_queue[0] = abs_time;
|
|
timebp_timer = bx_pc_system.register_timer_ticks(&bx_pc_system, bx_pc_system_c::timebp_handler, diff, 0, 1);
|
|
}
|
|
|
|
fprintf(stderr, "Time breakpoint inserted. Delta = %d\n", diff);
|
|
}
|
|
|
|
void
|
|
bx_dbg_diff_memory(void)
|
|
{
|
|
#if BX_NUM_SIMULATORS < 2
|
|
printf("diff-memory supported only in cosimulation mode\n");
|
|
#else
|
|
int num_pages = bx_options.memory.megs * 1024 / 4;
|
|
for (int i = 0; i < num_pages; i++) {
|
|
bx_dbg_callback[0].dirty_page_tbl[i] = 1;
|
|
}
|
|
if (bx_dbg_compare_sim_memory())
|
|
printf("[diff-memory] Diff detected\n");
|
|
else
|
|
printf("[diff-memory] No diff detected\n");
|
|
#endif /* NUM_SIMULATORS < 2 */
|
|
}
|
|
|
|
void
|
|
bx_dbg_sync_memory(Boolean set)
|
|
{
|
|
#if BX_NUM_SIMULATORS < 2
|
|
printf("sync-memory supported only in cosimulation mode\n");
|
|
#else
|
|
bx_debugger.compare_at_sync.memory = set;
|
|
printf("Memory sync %s\n", (set) ? "enabled" : "disabled");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_sync_cpu(Boolean set)
|
|
{
|
|
#if BX_NUM_SIMULATORS < 2
|
|
printf("sync-cpu supported only in cosimulation mode\n");
|
|
#else
|
|
bx_debugger.compare_at_sync.cpu = set;
|
|
printf("Register file sync %s\n", (set) ? "enabled" : "disabled");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_fast_forward(Bit32u num)
|
|
{
|
|
#if BX_NUM_SIMULATORS < 2
|
|
printf("fast-forward supported only in cosimulation mode\n");
|
|
#else
|
|
printf("Entering fast-forward mode\n");
|
|
|
|
// Bit32u save_icount_quantum = bx_debugger.icount_quantum;
|
|
// bx_debugger.icount_quantum = num;
|
|
|
|
bx_guard.interrupt_requested = 0;
|
|
|
|
bx_debugger.fast_forward_mode = 1;
|
|
for (Bit32u e = 0; e < num; e += bx_debugger.icount_quantum)
|
|
if (!bx_dbg_cosimulateN(bx_debugger.icount_quantum))
|
|
break;
|
|
bx_debugger.fast_forward_mode = 0;
|
|
// bx_debugger.icount_quantum = save_icount_quantum;
|
|
|
|
bx_vga.timer_handler(&bx_vga);
|
|
|
|
printf("Copying CPU...\n");
|
|
bx_dbg_cpu_t cpu;
|
|
if (!bx_dbg_callback[0].get_cpu(&cpu) || !bx_dbg_callback[1].set_cpu(&cpu))
|
|
printf("Error copying CPU data!\n");
|
|
|
|
printf("Copying memory...\n");
|
|
int num_pages = bx_options.memory.megs * 1024 / 4;
|
|
for (int i = 0; i < num_pages; i++) {
|
|
if (bx_dbg_callback[0].dirty_page_tbl[i]) {
|
|
Bit32u page_start = i * 1024 * 4;
|
|
printf("Copying page %08x\n", page_start);
|
|
extern Bit8u* SIM1_GET_PHYS_PTR(Bit32u page_start);
|
|
Bit8u* sim0_page_vec = bx_mem0.vector + page_start;
|
|
Bit8u* sim1_page_vec = SIM1_GET_PHYS_PTR(page_start);
|
|
memcpy(sim1_page_vec, sim0_page_vec, 1024 * 4);
|
|
}
|
|
}
|
|
|
|
printf("Taking async events...\n");
|
|
|
|
printf("Exiting fast-forward mode\n");
|
|
#endif
|
|
}
|
|
|
|
static Bit32u
|
|
conv_4xBit8u_to_Bit32u (Bit8u* buf)
|
|
{
|
|
Bit32u ret = 0;
|
|
for (int i = 0; i < 4; i++) {
|
|
ret |= (buf[i] << (8 * i));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
(mch) Print various info for logical address.
|
|
*/
|
|
void
|
|
bx_dbg_info_address(Bit32u seg_reg_num, Bit32u offset)
|
|
{
|
|
#if BX_NUM_SIMULATORS < 2
|
|
printf("addr-info only supported in cosim configuration.\n");
|
|
#else
|
|
for (int sim = 0; sim < 2; sim++) {
|
|
/* Find page table base address */
|
|
bx_dbg_cpu_t regs;
|
|
bx_dbg_callback[sim].get_cpu(®s);
|
|
Bit32u base = regs.cr3 & ~0xfff;
|
|
|
|
Bit8u buf[4];
|
|
Bit32u directory_addr = base + (offset >> 22) * 4;
|
|
Bit32u directory;
|
|
if (bx_dbg_callback[sim].getphymem(directory_addr, 4, buf)) {
|
|
directory = conv_4xBit8u_to_Bit32u(buf);
|
|
Bit32u table_addr = (directory & ~0xfff) + ((offset >> 12) & 0x3ff) * 4;
|
|
Bit32u table;
|
|
|
|
printf("[%s] ", SIM_NAME(sim));
|
|
printf("PDE: %08x (", directory);
|
|
printf("%s, %s, %s, %s, %s)",
|
|
(directory & 1) ? "Present" : "Not present",
|
|
(directory & 2) ? "Read/Write" : "Read-only",
|
|
(directory & 4) ? "User" : "Supervisor",
|
|
(directory & (1 << 5)) ? "Accessed" : "-",
|
|
(directory & (1 << 6)) ? "Dirty" : "-");
|
|
|
|
if (directory & 1) {
|
|
if (bx_dbg_callback[sim].getphymem(table_addr, 4, buf)) {
|
|
table = conv_4xBit8u_to_Bit32u(buf);
|
|
|
|
printf(", PTE: %08x (", table);
|
|
printf("%s, %s, %s, %s, %s)\n",
|
|
(table & 1) ? "Present" : "Not present",
|
|
(table & 2) ? "Read/Write" : "Read-only",
|
|
(table & 4) ? "User" : "Supervisor",
|
|
(table & (1 << 5)) ? "Accessed" : "-",
|
|
(table & (1 << 6)) ? "Dirty" : "-");
|
|
} else {
|
|
printf("[%s] Could not read from physical address %08x\n",
|
|
SIM_NAME(sim), directory_addr);
|
|
return;
|
|
}
|
|
} else {
|
|
printf("\n");
|
|
}
|
|
} else {
|
|
printf("[%s] Could not read from physical address %08x\n",
|
|
SIM_NAME(sim), directory_addr);
|
|
return;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_record_command(char* path_quoted)
|
|
{
|
|
// skip beginning double quote
|
|
if (path_quoted[0] == '"')
|
|
path_quoted++;
|
|
|
|
// null out ending quote
|
|
int len = strlen(path_quoted);
|
|
if (path_quoted[len - 1] == '"')
|
|
path_quoted[len - 1] = '\0';
|
|
|
|
bx_dbg.record_io = fopen(path_quoted, "w");
|
|
if (bx_dbg.record_io)
|
|
fprintf(stderr, "IO record file '%s' opened\n", path_quoted);
|
|
else
|
|
fprintf(stderr, "Error opening '%s' for writing\n", path_quoted);
|
|
}
|
|
|
|
static FILE* playback_file = 0;
|
|
|
|
struct playback_entry_t
|
|
{
|
|
char command[100];
|
|
Bit32u argument;
|
|
|
|
void trigger ();
|
|
};
|
|
|
|
static playback_entry_t playback_entry;
|
|
static long long last_playback_time = 0;
|
|
static int playback_timer_index = -1;
|
|
|
|
void
|
|
bx_dbg_playback_command(char* path_quoted)
|
|
{
|
|
|
|
// skip beginning double quote
|
|
if (path_quoted[0] == '"')
|
|
path_quoted++;
|
|
|
|
// null out ending quote
|
|
int len = strlen(path_quoted);
|
|
if (path_quoted[len - 1] == '"')
|
|
path_quoted[len - 1] = '\0';
|
|
|
|
playback_file = fopen(path_quoted, "r");
|
|
if (playback_file) {
|
|
fprintf(stderr, "Playback from '%s'\n", path_quoted);
|
|
last_playback_time = 0;
|
|
fprintf(stderr, "playback times relative from %lld\n", bx_pc_system.time_ticks());
|
|
enter_playback_entry();
|
|
} else
|
|
fprintf(stderr, "Error opening '%s' for reading\n", path_quoted);
|
|
}
|
|
|
|
// BW added. toggles vm86 mode switch breakpoint
|
|
//dummy not used and may be null
|
|
void
|
|
bx_dbg_modebp_command(char* dummy)
|
|
{
|
|
BX_CPU_THIS_PTR debug_vm == BX_CPU_THIS_PTR eflags.vm;
|
|
BX_CPU_THIS_PTR mode_break = !BX_CPU_THIS_PTR mode_break;
|
|
fprintf(stderr," mode switch break %s\n",
|
|
BX_CPU_THIS_PTR mode_break ? "enabled" : "disabled");
|
|
}
|
|
|
|
// where
|
|
// stack trace: ebp -> old ebp
|
|
// return eip at ebp + 4
|
|
void
|
|
bx_dbg_where_command()
|
|
{
|
|
if (!BX_CPU_THIS_PTR protected_mode()) {
|
|
fprintf(stderr, "'where' only supported in protected mode\n");
|
|
return;
|
|
}
|
|
if (BX_CPU_THIS_PTR sregs[BX_SREG_SS].cache.u.segment.base != 0) {
|
|
fprintf(stderr, "non-zero stack base\n");
|
|
return;
|
|
}
|
|
Bit32u bp = EBP;
|
|
Bit32u ip = EIP;
|
|
fprintf(stderr, "(%d) 0x%08x\n", 0, ip);
|
|
for (int i = 1; i < 50; i++) {
|
|
// Up
|
|
Boolean paddr_valid;
|
|
Bit32u paddr;
|
|
Bit8u buf[4];
|
|
|
|
// bp = [bp];
|
|
bx_dbg_callback[0].xlate_linear2phy(bp, &paddr, &paddr_valid);
|
|
if (paddr_valid) {
|
|
if (bx_dbg_callback[0].getphymem(paddr, 4, buf)) {
|
|
bp = conv_4xBit8u_to_Bit32u(buf);
|
|
} else {
|
|
fprintf(stderr, "(%d) Physical memory read error (BP)\n", i);
|
|
break;
|
|
}
|
|
} else {
|
|
fprintf(stderr, "(%d) Could not translate linear address (BP)\n", i);
|
|
break;
|
|
}
|
|
|
|
// ip = [bp + 4];
|
|
bx_dbg_callback[0].xlate_linear2phy(bp + 4, &paddr, &paddr_valid);
|
|
if (paddr_valid) {
|
|
if (bx_dbg_callback[0].getphymem(paddr, 4, buf)) {
|
|
ip = conv_4xBit8u_to_Bit32u(buf);
|
|
} else {
|
|
fprintf(stderr, "(%d) Physical memory read error (IP)\n", i);
|
|
break;
|
|
}
|
|
} else {
|
|
fprintf(stderr, "(%d) Could not translate linear address (IP)\n", i);
|
|
break;
|
|
}
|
|
|
|
// Print
|
|
fprintf(stderr, "(%d) 0x%08x\n", i, ip);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_print_string_command(Bit32u start_addr)
|
|
{
|
|
fprintf(stderr, "0x%08x: ", start_addr);
|
|
for (int i = 0; ; i++) {
|
|
Bit32u paddr;
|
|
Bit32u paddr_valid;
|
|
Bit8u buf[1];
|
|
bx_dbg_callback[0].xlate_linear2phy(start_addr+i, &paddr, &paddr_valid);
|
|
if (paddr_valid) {
|
|
if (bx_dbg_callback[0].getphymem(paddr, 1, buf)) {
|
|
if (buf[0] == 0)
|
|
break;
|
|
if (isgraph(buf[0]) || buf[0] == 0x20)
|
|
fprintf(stderr, "%c", buf[0]);
|
|
else
|
|
fprintf(stderr, "\\%d", buf[0]);
|
|
} else {
|
|
fprintf(stderr, "<read error>");
|
|
break;
|
|
}
|
|
} else {
|
|
fprintf(stderr, "<no translation>");
|
|
break;
|
|
}
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
static Bit32u last_cr3;
|
|
static int last_pe = 0;
|
|
static int last_vm = 0;
|
|
|
|
unsigned int dbg_show_mask = 0;
|
|
// 0x80 print mode
|
|
// 0x40 print interrupts
|
|
// 0x20 print calls
|
|
|
|
//BW added. toggles show symbolic info (calls to begin with)
|
|
// 0x1 call
|
|
// 0x2 return
|
|
// 0x4 int
|
|
// 0x8 iret
|
|
// 0x10 interrupts (includes iret)
|
|
|
|
static void dbg_dump_table(Boolean);
|
|
|
|
void bx_dbg_show_command(char* arg)
|
|
{
|
|
if(arg) {
|
|
if (!strcmp(arg,"\"mode\"")){
|
|
dbg_show_mask = 0x80;
|
|
} else if (!strcmp(arg,"\"int\"")){
|
|
dbg_show_mask = 0xc0;
|
|
} else if(!strcmp(arg,"\"call\"")){
|
|
dbg_show_mask = 0xe0;
|
|
} else if(!strcmp(arg,"\"ret\"")){
|
|
dbg_show_mask = 0xe0;
|
|
} else if(!strcmp(arg,"\"off\"")){
|
|
dbg_show_mask = 0x0;
|
|
} else if(!strcmp(arg,"\"tab\"")){
|
|
dbg_dump_table(1);
|
|
return;
|
|
} else if(!strcmp(arg,"\"c\"")){
|
|
dbg_dump_table(0);
|
|
return;
|
|
} else if(!strcmp(arg,"\"dbg-all\"")){
|
|
bx_dbg.floppy = 1;
|
|
bx_dbg.keyboard = 1;
|
|
bx_dbg.video = 1;
|
|
bx_dbg.disk = 1;
|
|
bx_dbg.pit = 1;
|
|
bx_dbg.pic = 1;
|
|
bx_dbg.bios = 1;
|
|
bx_dbg.cmos = 1;
|
|
bx_dbg.a20 = 1;
|
|
bx_dbg.interrupts = 1;
|
|
bx_dbg.exceptions = 1;
|
|
bx_dbg.unsupported = 1;
|
|
bx_dbg.temp = 1;
|
|
bx_dbg.reset = 1;
|
|
bx_dbg.mouse = 1;
|
|
bx_dbg.io = 1;
|
|
bx_dbg.debugger = 1;
|
|
bx_dbg.xms = 1;
|
|
bx_dbg.v8086 = 1;
|
|
bx_dbg.paging = 1;
|
|
bx_dbg.creg = 1;
|
|
bx_dbg.dreg = 1;
|
|
bx_dbg.dma = 1;
|
|
bx_dbg.unsupported_io = 1;
|
|
/* bx_dbg.record_io = 1; this is a pointer .. somewhere */
|
|
printf("Turned on all bx_dbg flags\n");
|
|
return;
|
|
} else {
|
|
printf("Unrecognized arg: %s ('mode' 'int' 'call' 'ret' 'dbg-all' are valid)\n",arg);
|
|
return;
|
|
}
|
|
} else {
|
|
fprintf(stderr," show mask is 0x%x\n", dbg_show_mask);
|
|
return;
|
|
}
|
|
|
|
// enable trace if any print is active
|
|
if(dbg_show_mask & 0xe0)
|
|
dbg_show_mask |= 0x1f;
|
|
|
|
fprintf(stderr," show mask is 0x%x, cleared show_flag\n", dbg_show_mask);
|
|
BX_CPU_THIS_PTR show_flag = 0;
|
|
last_cr3 = BX_CPU_THIS_PTR cr3;
|
|
last_pe = BX_CPU_THIS_PTR cr0.pe;
|
|
last_vm = BX_CPU_THIS_PTR eflags.vm;
|
|
|
|
fprintf(stderr,"%10lld: address %04x:%08x %08x\n\n",
|
|
bx_pc_system.time_ticks(),
|
|
bx_guard_found[BX_SIM_ID].cs,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr);
|
|
|
|
}
|
|
|
|
void
|
|
playback_function(void* this_ptr)
|
|
{
|
|
((playback_entry_t*)this_ptr)->trigger();
|
|
}
|
|
|
|
void
|
|
enter_playback_entry()
|
|
{
|
|
static const int playback_buf_size = 100;
|
|
char playback_buf[playback_buf_size];
|
|
if (!fgets(playback_buf, playback_buf_size, playback_file))
|
|
return;
|
|
|
|
Bit64u time;
|
|
Bit32u argument;
|
|
if (sscanf(playback_buf, "%s %lld %x", playback_entry.command, &time, &playback_entry.argument) != 3) {
|
|
fprintf(stderr, "Parse error in playback string '%s'\n", playback_buf);
|
|
return;
|
|
}
|
|
|
|
long long diff = time - last_playback_time;
|
|
last_playback_time = time;
|
|
|
|
if (diff < 0) {
|
|
bx_panic("Negative diff in playback");
|
|
} else if (diff == 0) {
|
|
playback_entry.trigger();
|
|
} else {
|
|
if (playback_timer_index >= 0)
|
|
bx_pc_system.activate_timer_ticks(playback_timer_index, diff, 0);
|
|
else
|
|
playback_timer_index = bx_pc_system.register_timer_ticks(&playback_entry, playback_function, diff, 0, 1);
|
|
}
|
|
}
|
|
|
|
void
|
|
playback_entry_t::trigger ()
|
|
{
|
|
if (!strcmp("gen_scancode", command)) {
|
|
bx_devices.keyboard->gen_scancode(argument);
|
|
} else {
|
|
fprintf(stderr, "Unknown playback command '%s'\n", command);
|
|
return;
|
|
}
|
|
enter_playback_entry();
|
|
}
|
|
|
|
void
|
|
bx_dbg_print_stack_command(int nwords)
|
|
{
|
|
// Get linear address for stack top
|
|
Bit32u sp = (BX_CPU_THIS_PTR sregs[BX_SREG_SS].cache.u.segment.d_b) ? ESP : SP;
|
|
Bit32u linear_sp = sp + BX_CPU_THIS_PTR sregs[BX_SREG_SS].cache.u.segment.base;
|
|
Bit8u buf[8];
|
|
|
|
for (int i = 0; i < nwords; i++) {
|
|
Bit32u paddr;
|
|
Boolean paddr_valid;
|
|
bx_dbg_callback[0].xlate_linear2phy(sp, &paddr, &paddr_valid);
|
|
if (paddr_valid) {
|
|
if (bx_dbg_callback[0].getphymem(paddr, 2, buf))
|
|
fprintf(stderr, " %08x [%08x] %04x\n", linear_sp, paddr, (int)buf[0] | ((int)buf[1] << 8));
|
|
else
|
|
fprintf(stderr, " %08x [%08x] <read error>\n", paddr, linear_sp);
|
|
} else {
|
|
fprintf(stderr, " %08x <could not translate>\n", linear_sp);
|
|
}
|
|
sp += 2;
|
|
linear_sp += 2;
|
|
}
|
|
}
|
|
|
|
#if !BX_HAVE_HASH_MAP
|
|
|
|
static char *BX_HAVE_HASH_MAP_ERR = "context not implemented because BX_HAVE_HASH_MAP=0\n";
|
|
char*
|
|
bx_dbg_symbolic_address(Bit32u context, Bit32u eip, Bit32u base)
|
|
{
|
|
static Boolean first = true;
|
|
if (first) {
|
|
fprintf (stderr, BX_HAVE_HASH_MAP_ERR);
|
|
first = false;
|
|
}
|
|
return "unknown context";
|
|
}
|
|
|
|
void
|
|
bx_dbg_symbol_command(char* filename, Boolean global, Bit32u offset)
|
|
{
|
|
fprintf (stderr, BX_HAVE_HASH_MAP_ERR);
|
|
}
|
|
|
|
#else /* if BX_HAVE_HASH_MAP == 1 */
|
|
|
|
/* Haven't figured out how to port this code to OSF1 cxx compiler.
|
|
Until a more portable solution is found, at least make it easy
|
|
to disable the template code: just set BX_HAVE_HASH_MAP=0
|
|
in config.h */
|
|
|
|
#include <hash_map.h>
|
|
#include <set.h>
|
|
|
|
struct symbol_entry_t
|
|
{
|
|
symbol_entry_t (Bit32u _start = 0, char* _name = 0)
|
|
{
|
|
start = _start;
|
|
name = _name;
|
|
}
|
|
|
|
char* name;
|
|
Bit32u start;
|
|
};
|
|
|
|
struct lt_symbol_entry_t
|
|
{
|
|
bool operator()(const symbol_entry_t* s1, const symbol_entry_t* s2) const
|
|
{
|
|
return s1->start < s2->start;
|
|
}
|
|
};
|
|
|
|
struct context_t
|
|
{
|
|
context_t (Bit32u);
|
|
static context_t* get_context(Bit32u);
|
|
symbol_entry_t* get_symbol_entry(Bit32u);
|
|
void add_symbol(symbol_entry_t*);
|
|
|
|
private:
|
|
static hash_map<int,context_t*>* map;
|
|
set<symbol_entry_t*,lt_symbol_entry_t>* syms;
|
|
Bit32u id;
|
|
};
|
|
|
|
hash_map<int,context_t*>* context_t::map = new hash_map<int,context_t*>;
|
|
|
|
context_t::context_t (Bit32u _id)
|
|
{
|
|
id = _id;
|
|
syms = new set<symbol_entry_t*, lt_symbol_entry_t>;
|
|
(*map)[id] = this;
|
|
}
|
|
|
|
context_t*
|
|
context_t::get_context(Bit32u i)
|
|
{
|
|
return (*map)[i];
|
|
}
|
|
|
|
symbol_entry_t*
|
|
context_t::get_symbol_entry(Bit32u ip)
|
|
{
|
|
symbol_entry_t probe;
|
|
probe.start = ip;
|
|
set<symbol_entry_t*>::iterator iter = syms->upper_bound(&probe);
|
|
if (iter == syms->end())
|
|
return 0;
|
|
else if (iter == syms->begin())
|
|
return 0;
|
|
else {
|
|
iter--;
|
|
return *iter;
|
|
}
|
|
}
|
|
|
|
void
|
|
context_t::add_symbol(symbol_entry_t* sym)
|
|
{
|
|
syms->insert(sym);
|
|
}
|
|
|
|
char*
|
|
bx_dbg_symbolic_address(Bit32u context, Bit32u eip, Bit32u base)
|
|
{
|
|
static char buf[80];
|
|
if (base != 0) {
|
|
snprintf (buf, 80, "non-zero base");
|
|
return buf;
|
|
}
|
|
// Look up this context
|
|
context_t* cntx = context_t::get_context(context);
|
|
if (!cntx) {
|
|
// Try global context
|
|
cntx = context_t::get_context(0);
|
|
if (!cntx) {
|
|
snprintf (buf, 80, "unknown context");
|
|
return buf;
|
|
}
|
|
}
|
|
|
|
symbol_entry_t* entr = cntx->get_symbol_entry(eip);
|
|
if (!entr) {
|
|
snprintf (buf, 80, "no symbol");
|
|
return buf;
|
|
}
|
|
snprintf (buf, 80, "%s+%x", entr->name, eip - entr->start);
|
|
return buf;
|
|
}
|
|
|
|
void
|
|
bx_dbg_symbol_command(char* filename, Boolean global, Bit32u offset)
|
|
{
|
|
if (filename[0] == '"')
|
|
filename++;
|
|
int len = strlen(filename);
|
|
if (filename[len - 1] == '"')
|
|
filename[len - 1] = '\0';
|
|
|
|
// Install symbols in correct context (page table)
|
|
// The file format should be
|
|
// address symbol (example '00002afe _StartLoseNT')
|
|
|
|
context_t* cntx = (global)
|
|
? context_t::get_context(0)
|
|
: context_t::get_context((BX_CPU_THIS_PTR cr3) >> 12);
|
|
|
|
if (!cntx)
|
|
cntx = (global)
|
|
? new context_t(0)
|
|
: new context_t((BX_CPU_THIS_PTR cr3) >> 12);
|
|
|
|
FILE* fp = fopen(filename, "r");
|
|
if (!fp) {
|
|
fprintf(stderr, "Could not open symbol file '%s'\n", filename);
|
|
return;
|
|
}
|
|
char buf[200];
|
|
while (fgets(buf, 200, fp)) {
|
|
// Parse
|
|
char* sym_name = buf;
|
|
for (int i = 0; i < 200 && buf[i]; i++) {
|
|
if (buf[i] == ' ') {
|
|
buf[i] = '\0';
|
|
sym_name = buf + i + 1;
|
|
break;
|
|
}
|
|
}
|
|
if (sym_name == buf) {
|
|
fprintf(stderr, "Syntax error '%s'\n", buf);
|
|
break;
|
|
}
|
|
Bit32u addr = strtoul(buf, 0, 16);
|
|
if (sym_name[strlen(sym_name)-1] == '\n')
|
|
sym_name[strlen(sym_name)-1] = '\0';
|
|
symbol_entry_t* sym = new symbol_entry_t(addr + offset, strdup(sym_name));
|
|
cntx->add_symbol(sym);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
int num_write_watchpoints = 0;
|
|
int num_read_watchpoints = 0;
|
|
Bit32u write_watchpoint[MAX_WRITE_WATCHPOINTS];
|
|
Bit32u read_watchpoint[MAX_READ_WATCHPOINTS];
|
|
Boolean watchpoint_continue = 0;
|
|
|
|
void
|
|
bx_dbg_watch(int read, Bit32u address)
|
|
{
|
|
if (read == -1) {
|
|
// print watch point info
|
|
for (int i = 0; i < num_read_watchpoints; i++) {
|
|
Bit8u buf[2];
|
|
if (bx_dbg_callback[0].getphymem(read_watchpoint[i], 2, buf))
|
|
fprintf(stderr, "read %08x (%04x)\n", read_watchpoint[i], (int)buf[0] | ((int)buf[1] << 8));
|
|
else
|
|
fprintf(stderr, "read %08x (read error)\n", read_watchpoint[i]);
|
|
}
|
|
for (int i = 0; i < num_write_watchpoints; i++) {
|
|
Bit8u buf[2];
|
|
if (bx_dbg_callback[0].getphymem(write_watchpoint[i], 2, buf))
|
|
fprintf(stderr, "write %08x (%04x)\n", write_watchpoint[i], (int)buf[0] | ((int)buf[1] << 8));
|
|
else
|
|
fprintf(stderr, "write %08x (read error)\n", write_watchpoint[i]);
|
|
}
|
|
} else {
|
|
if (read) {
|
|
if (num_read_watchpoints == MAX_READ_WATCHPOINTS) {
|
|
fprintf(stderr, "Too many read watchpoints\n");
|
|
return;
|
|
}
|
|
read_watchpoint[num_read_watchpoints++] = address;
|
|
fprintf(stderr, "Read watchpoint at %08x inserted\n", address);
|
|
} else {
|
|
if (num_write_watchpoints == MAX_WRITE_WATCHPOINTS) {
|
|
fprintf(stderr, "Too many write watchpoints\n");
|
|
return;
|
|
}
|
|
write_watchpoint[num_write_watchpoints++] = address;
|
|
fprintf(stderr, "Write watchpoint at %08x inserted\n", address);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_unwatch(int read, Bit32u address)
|
|
{
|
|
if (read == -1) {
|
|
// unwatch all
|
|
num_read_watchpoints = num_write_watchpoints = 0;
|
|
fprintf(stderr, "All watchpoints removed\n");
|
|
} else {
|
|
if (read) {
|
|
fprintf(stderr, "Watchpoint remove not implemented\n");
|
|
} else {
|
|
fprintf(stderr, "Watchpoint remove not implemented\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_continue_command(void)
|
|
{
|
|
// continue executing, until a guard found
|
|
|
|
one_more:
|
|
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
bx_guard.interrupt_requested = 0;
|
|
while (1) {
|
|
if ( !bx_dbg_cosimulateN(bx_debugger.icount_quantum) )
|
|
break;
|
|
}
|
|
#else
|
|
// run indefinitely
|
|
bx_guard.icount = 0;
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_ICOUNT; // not looking for icount
|
|
bx_guard.guard_for |= BX_DBG_GUARD_CTRL_C; // stop on Ctrl-C
|
|
|
|
bx_guard_found[0].guard_found = 0;
|
|
bx_guard_found[0].icount = 0;
|
|
|
|
bx_guard.interrupt_requested = 0;
|
|
bx_dbg_callback[0].execute();
|
|
#endif
|
|
|
|
// (mch) hack
|
|
bx_vga.timer_handler(&bx_vga);
|
|
|
|
BX_INSTR_DEBUG_PROMPT();
|
|
bx_dbg_print_guard_results();
|
|
|
|
if (BX_CPU_THIS_PTR stop_reason == STOP_TRACE)
|
|
goto one_more;
|
|
|
|
if (watchpoint_continue && (BX_CPU_THIS_PTR stop_reason == STOP_READ_WATCH_POINT ||
|
|
BX_CPU_THIS_PTR stop_reason == STOP_WRITE_WATCH_POINT))
|
|
goto one_more;
|
|
}
|
|
|
|
void
|
|
bx_dbg_stepN_command(bx_dbg_icount_t count)
|
|
{
|
|
if (count == 0) {
|
|
fprintf(stderr, "Error: stepN: count=0\n");
|
|
return;
|
|
}
|
|
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
bx_guard.interrupt_requested = 0;
|
|
bx_dbg_cosimulateN(count);
|
|
#else
|
|
// single CPU
|
|
bx_guard.icount = count;
|
|
bx_guard.guard_for |= BX_DBG_GUARD_ICOUNT; // looking for icount
|
|
bx_guard.guard_for |= BX_DBG_GUARD_CTRL_C; // or Ctrl-C
|
|
|
|
bx_guard_found[0].guard_found = 0;
|
|
bx_guard_found[0].icount = 0;
|
|
|
|
bx_guard.interrupt_requested = 0;
|
|
bx_dbg_callback[0].execute();
|
|
#endif
|
|
|
|
BX_INSTR_DEBUG_PROMPT();
|
|
bx_dbg_print_guard_results();
|
|
}
|
|
|
|
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
unsigned
|
|
bx_dbg_cosimulateN(bx_dbg_icount_t count)
|
|
{
|
|
// execute both master & slave for count instructions,
|
|
// handling asynchronous events, etc.
|
|
// returns 0 = didn't get through all count instructions
|
|
// either a guard was hit, or a divergence occurred
|
|
// 1 = got through all count instructions
|
|
|
|
unsigned master, slave;
|
|
bx_dbg_icount_t master_icount, slave_icount;
|
|
Boolean bail_out = 0;
|
|
unsigned ret = 0;
|
|
Boolean save_INTR;
|
|
Boolean pre_A20, post_A20;
|
|
unsigned async_head;
|
|
bx_dbg_icount_t async_icount, curr_icount;
|
|
|
|
if (count == 0) {
|
|
fprintf(stderr, "Error: cosimulateN: count=0\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
bx_guard.guard_for |= BX_DBG_GUARD_ICOUNT; // stop at icount
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_CTRL_C; // ignore Ctrl-C
|
|
|
|
one_time_slice:
|
|
// take minimum of requested count and maximum count quantum
|
|
if (count > bx_debugger.icount_quantum)
|
|
bx_guard.icount = bx_debugger.icount_quantum;
|
|
else
|
|
bx_guard.icount = count;
|
|
|
|
// for now, assume...
|
|
master = bx_debugger.master;
|
|
slave = bx_debugger.slave;
|
|
|
|
// run master simulator
|
|
bx_debugger.master_slave_mode = BX_DBG_MASTER_MODE;
|
|
if (bx_guard.interrupt_requested) {
|
|
bail_out = 1;
|
|
fprintf(stderr, "ctrlc typed\n");
|
|
}
|
|
bx_guard_found[master].guard_found = 0;
|
|
bx_guard_found[master].icount = 0;
|
|
if (doit) fprintf(stderr, "requesting run of master for %u\n",
|
|
(unsigned) bx_guard.icount);
|
|
// save A20 value before master run
|
|
pre_A20 = bx_pc_system.get_enable_a20();
|
|
|
|
bx_dbg_callback[master].execute();
|
|
post_A20 = bx_pc_system.get_enable_a20(); // A20 after master run
|
|
master_icount = bx_guard_found[master].icount;
|
|
slave_icount = 0;
|
|
if (master_icount)
|
|
bx_pc_system.tickn(master_icount);
|
|
save_INTR = bx_pc_system.INTR; // value after master run
|
|
bx_pc_system.INTR = 0; // in case slave uses directly
|
|
// Change A20 for slave run to model what it was at beginning of
|
|
// master run, only if it needs to be changed.
|
|
if (pre_A20 != post_A20) {
|
|
bx_pc_system.set_enable_a20(pre_A20);
|
|
if (bx_dbg_callback[slave].set_A20)
|
|
bx_dbg_callback[slave].set_A20(pre_A20);
|
|
}
|
|
|
|
|
|
// if guard was anything except for icount, we should terminate
|
|
// after synchronizing slave to master
|
|
if (bx_guard_found[master].guard_found & ~BX_DBG_GUARD_ICOUNT)
|
|
bail_out = 1;
|
|
|
|
// Synchronize slave to master. Account for Ctrl-C's typed during execution of
|
|
// slave.
|
|
bx_debugger.master_slave_mode = BX_DBG_SLAVE_MODE;
|
|
do {
|
|
// run slave for remaining instructions to catch up to master
|
|
curr_icount = master_icount - slave_icount;
|
|
if (bx_debugger.async_journal.size) {
|
|
// If there were asynchronous events which occurred while the
|
|
// master was running, have to run the slave up to each of these
|
|
// points individually, and force it to take them on exactly the
|
|
// same boundaries.
|
|
async_head = bx_debugger.async_journal.head;
|
|
async_icount = bx_debugger.async_journal.element[async_head].icount;
|
|
curr_icount = async_icount; // only run to next async event
|
|
}
|
|
else {
|
|
async_head = 0; // keep compiler happy
|
|
async_icount = 0; // keep compiler happy
|
|
}
|
|
|
|
bx_guard_found[slave].guard_found = 0;
|
|
bx_guard_found[slave].icount = 0;
|
|
bx_guard.icount = curr_icount;
|
|
|
|
if (curr_icount) {
|
|
// Async event may be before completion of any instructions,
|
|
// for example taking of interrupt.
|
|
if (doit) fprintf(stderr, "requesting run of slave for %u\n",
|
|
(unsigned) bx_guard.icount);
|
|
if (bx_debugger.fast_forward_mode) {
|
|
bx_guard_found[slave].icount = curr_icount;
|
|
bx_guard_found[slave].guard_found = BX_DBG_GUARD_ICOUNT;
|
|
} else {
|
|
bx_dbg_callback[slave].execute();
|
|
}
|
|
}
|
|
slave_icount += bx_guard_found[slave].icount;
|
|
if (bx_guard_found[slave].guard_found & ~BX_DBG_GUARD_ICOUNT) {
|
|
bail_out = 1;
|
|
// If user type Ctrl-C we're done after synchronizing. If not,
|
|
// then we have reached a true guard, and it's time to bail.
|
|
if (bx_guard_found[slave].guard_found &
|
|
~(BX_DBG_GUARD_ICOUNT | BX_DBG_GUARD_CTRL_C))
|
|
break;
|
|
}
|
|
if (bx_debugger.async_journal.size) {
|
|
// sanity check: slave should be at async point
|
|
if (bx_guard_found[slave].icount != async_icount) {
|
|
fprintf(stderr, "Error: comsimulateN: async: slave not at sync point.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
switch (bx_debugger.async_journal.element[async_head].what) {
|
|
case BX_DBG_ASYNC_JOURNAL_IAC:
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (doit)
|
|
fprintf(stderr, "slave: forcing interrupt %u\n",
|
|
bx_debugger.async_journal.element[async_head].u.iac.val);
|
|
|
|
bx_dbg_callback[slave].force_interrupt(
|
|
bx_debugger.async_journal.element[async_head].u.iac.val);
|
|
}
|
|
break;
|
|
case BX_DBG_ASYNC_JOURNAL_A20:
|
|
bx_pc_system.set_enable_a20(
|
|
bx_debugger.async_journal.element[async_head].u.a20.val);
|
|
if (bx_dbg_callback[slave].set_A20)
|
|
bx_dbg_callback[slave].set_A20(
|
|
bx_debugger.async_journal.element[async_head].u.a20.val);
|
|
break;
|
|
case BX_DBG_ASYNC_JOURNAL_NMI:
|
|
case BX_DBG_ASYNC_JOURNAL_RESET:
|
|
default:
|
|
fprintf(stderr, "Error: cosimulateN: unimplemented async event.\n");
|
|
}
|
|
// async event processed, dequeue it
|
|
bx_debugger.async_journal.size--;
|
|
bx_debugger.async_journal.head++;
|
|
}
|
|
} while (slave_icount < master_icount);
|
|
|
|
bx_pc_system.INTR = save_INTR; // restore INTR to value after master run
|
|
|
|
// At this point, both simulators should be at the same point. Either
|
|
// they have finished executing for the desired count, or at least for
|
|
// a time quantum. Check to see if the environments are in sync.
|
|
int iaddr_res;
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (bx_debugger.compare_at_sync.iaddr && (iaddr_res = bx_dbg_compare_sim_iaddr())) {
|
|
if (iaddr_res == 1)
|
|
bail_out = 1;
|
|
} else if (bx_debugger.compare_at_sync.cpu && bx_dbg_compare_sim_cpu())
|
|
bail_out = 1;
|
|
else if (bx_debugger.compare_at_sync.memory && bx_dbg_compare_sim_memory())
|
|
bail_out = 1;
|
|
}
|
|
|
|
if (bail_out) {
|
|
#ifdef DEBUGGER_ERROR
|
|
extern void DEBUGGER_ERROR(void);
|
|
DEBUGGER_ERROR();
|
|
#endif
|
|
|
|
ret = 0; // didn't complete, stopped
|
|
}
|
|
else {
|
|
count -= master_icount;
|
|
// last icount known to be in sync
|
|
bx_debugger.last_sync_icount += master_icount;
|
|
if (count)
|
|
goto one_time_slice;
|
|
ret = 1; // completed OK
|
|
}
|
|
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_ICOUNT;
|
|
return(ret);
|
|
}
|
|
#endif // #if BX_NUM_SIMULATORS >= 2
|
|
|
|
|
|
#if BX_NUM_SIMULATORS >= 2
|
|
int
|
|
bx_dbg_compare_sim_iaddr(void)
|
|
{
|
|
// returns 0 = same, 1 = different, 2 = false diff
|
|
if (bx_guard_found[0].laddr != bx_guard_found[1].laddr) {
|
|
|
|
#ifdef FALSE_DIFF_DETECT
|
|
extern int FALSE_DIFF_DETECT();
|
|
if (FALSE_DIFF_DETECT())
|
|
return 2;
|
|
#endif
|
|
|
|
fprintf(stderr,
|
|
#if BX_DBG_ICOUNT_SIZE == 32
|
|
"*** Iaddr divergence ***: last know synchronized icount was %lu\n",
|
|
(unsigned long) bx_debugger.last_sync_icount
|
|
#else // BX_DBG_ICOUNT_SIZE == 64
|
|
"*** Iaddr divergence ***: last know synchronized icount was %Lu\n",
|
|
(unsigned long long) bx_debugger.last_sync_icount
|
|
#endif
|
|
);
|
|
|
|
// fprintf(stderr, "Divergence: sim[0].laddr=%x, sim[1].laddr=%x\n",
|
|
// (unsigned) bx_guard_found[0].laddr,
|
|
// (unsigned) bx_guard_found[1].laddr);
|
|
return(1); // different
|
|
}
|
|
return(0); // same
|
|
}
|
|
|
|
Boolean
|
|
bx_dbg_compare_sim_cpu(void)
|
|
{
|
|
// (mch) Get cpu structures from both simulators
|
|
|
|
// Compare the structures (except the descriptor parts of the
|
|
// segment registers
|
|
bx_dbg_cpu_t regs[2];
|
|
|
|
bx_dbg_callback[0].get_cpu(regs + 0);
|
|
bx_dbg_callback[1].get_cpu(regs + 1);
|
|
|
|
Boolean ret = 0;
|
|
Boolean warn = 0;
|
|
|
|
// (mch) Yes I know these are macros. The would have been
|
|
// inner functions if g++ had supported it.
|
|
#define TEST_REG(reg, reg_name) do { \
|
|
if (regs[0].reg != regs[1].reg) { \
|
|
printf("COSIM ERROR: [%s] %s: 0x%08x %s: 0x%08x\n", reg_name, SIM_NAME0, regs[0].reg, SIM_NAME1_STR, regs[1].reg); \
|
|
ret = 1; \
|
|
} \
|
|
} while(0)
|
|
|
|
#define TEST_REG_WARN(reg, reg_name, mask) do { \
|
|
if ((regs[0].reg & mask) != (regs[1].reg & mask)) { \
|
|
printf("COSIM WARNING: [%s] %s: 0x%08x %s: 0x%08x\n", reg_name, SIM_NAME0, (regs[0].reg & mask), SIM_NAME1_STR, (regs[1].reg & mask)); \
|
|
warn = 1; \
|
|
} \
|
|
} while(0)
|
|
|
|
TEST_REG(eax, "eax");
|
|
TEST_REG(ebx, "ebx");
|
|
TEST_REG(ecx, "ecx");
|
|
TEST_REG(edx, "edx");
|
|
TEST_REG(ebp, "ebp");
|
|
TEST_REG(esi, "esi");
|
|
TEST_REG(edi, "edi");
|
|
TEST_REG(esp, "esp");
|
|
TEST_REG_WARN(eflags, "eflags & CF", 0x1);
|
|
#define EFLAGS_MASK (~((1 << 11) | (1 << 7) | (1 << 6) | (1 << 4) | (1 << 2) | (1 << 0)))
|
|
regs[0].eflags &= EFLAGS_MASK;
|
|
regs[1].eflags &= EFLAGS_MASK;
|
|
TEST_REG(eflags, "eflags");
|
|
TEST_REG(eip, "eip");
|
|
|
|
#define TEST_SEG_REG(reg, reg_name) do { \
|
|
if (regs[0].reg.sel != regs[1].reg.sel || regs[0].reg.valid != regs[1].reg.valid) { \
|
|
printf("COSIM ERROR: [%s] %s: 0x%04x (%d) %s: 0x%04x (%d)\n", reg_name, SIM_NAME0, regs[0].reg.sel, regs[0].reg.valid, SIM_NAME1_STR, regs[1].reg.sel, regs[1].reg.valid); \
|
|
ret = 1; \
|
|
} \
|
|
} while(0)
|
|
|
|
TEST_SEG_REG(cs, "cs");
|
|
TEST_SEG_REG(ss, "ss");
|
|
TEST_SEG_REG(ds, "ds");
|
|
TEST_SEG_REG(es, "es");
|
|
TEST_SEG_REG(fs, "fs");
|
|
TEST_SEG_REG(gs, "gs");
|
|
TEST_SEG_REG(ldtr, "ldtr");
|
|
TEST_SEG_REG(tr, "tr");
|
|
|
|
if (regs[0].gdtr.base != regs[1].gdtr.base || regs[0].gdtr.limit != regs[1].gdtr.limit) {
|
|
printf("COSIM ERROR: [gdtr] %s: 0x%08x:0x%04x %s 0x%08x:0x%04x\n",
|
|
SIM_NAME0, regs[0].gdtr.base, regs[0].gdtr.limit, SIM_NAME1_STR, regs[1].gdtr.base, regs[1].gdtr.limit);
|
|
ret = 1;
|
|
}
|
|
if (regs[0].idtr.base != regs[1].idtr.base || regs[0].idtr.limit != regs[1].idtr.limit) {
|
|
printf("COSIM ERROR: [idtr] %s: 0x%08x:0x%04x %s 0x%08x:0x%04x\n",
|
|
SIM_NAME0, regs[0].idtr.base, regs[0].idtr.limit, SIM_NAME1_STR, regs[1].idtr.base, regs[1].idtr.limit);
|
|
ret = 1;
|
|
}
|
|
|
|
// drX ignored
|
|
// trX ignored
|
|
|
|
TEST_REG(cr0, "cr0");
|
|
TEST_REG(cr1, "cr1");
|
|
TEST_REG(cr2, "cr2");
|
|
TEST_REG(cr3, "cr3");
|
|
TEST_REG(cr4, "cr4");
|
|
|
|
if (regs[0].inhibit_mask != regs[1].inhibit_mask) {
|
|
printf("COSIM ERROR [inhibit_mask] %s: %d %s: %d\n",
|
|
SIM_NAME0, regs[0].inhibit_mask, SIM_NAME1_STR, regs[1].inhibit_mask);
|
|
ret = 1;
|
|
}
|
|
|
|
if (ret) {
|
|
fprintf(stderr,
|
|
#if BX_DBG_ICOUNT_SIZE == 32
|
|
"*** CPU divergence ***: last know synchronized icount was %lu\n",
|
|
(unsigned long) bx_debugger.last_sync_icount
|
|
#else // BX_DBG_ICOUNT_SIZE == 64
|
|
"*** CPU divergence ***: last know synchronized icount was %Lu\n",
|
|
(unsigned long long) bx_debugger.last_sync_icount
|
|
#endif
|
|
);
|
|
} else if (warn) {
|
|
fprintf(stderr,
|
|
#if BX_DBG_ICOUNT_SIZE == 32
|
|
"=== CPU divergence ===: last know synchronized icount was %lu\n",
|
|
(unsigned long) bx_debugger.last_sync_icount
|
|
#else // BX_DBG_ICOUNT_SIZE == 64
|
|
"=== CPU divergence ===: last know synchronized icount was %Lu\n",
|
|
(unsigned long long) bx_debugger.last_sync_icount
|
|
#endif
|
|
);
|
|
#ifdef DEBUGGER_ERROR
|
|
extern void DEBUGGER_ERROR(void);
|
|
DEBUGGER_ERROR();
|
|
#endif
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
void
|
|
clear_dirty_bits (void)
|
|
{
|
|
int num_pages = bx_options.memory.megs * 1024 / 4;
|
|
for (int i = 0; i < num_pages; i++) {
|
|
bx_dbg_callback[0].dirty_page_tbl[i] = 0;
|
|
bx_dbg_callback[1].dirty_page_tbl[i] = 0;
|
|
}
|
|
}
|
|
|
|
Boolean always_check_page[128 * 1024 / 4];
|
|
|
|
void
|
|
bx_dbg_always_check(Bit32u page_start, Boolean on)
|
|
{
|
|
always_check_page[page_start / (4 * 1024)] = on;
|
|
printf("Forced check on page %08x %s\n",
|
|
page_start, on ? "enabled" : "disabled");
|
|
}
|
|
|
|
Boolean
|
|
bx_dbg_compare_sim_memory(void)
|
|
{
|
|
Boolean ret = 0;
|
|
int num_pages = bx_options.memory.megs * 1024 / 4;
|
|
|
|
for (int i = 0; i < num_pages; i++) {
|
|
Boolean sim0_dirty = bx_dbg_callback[0].dirty_page_tbl[i];
|
|
Boolean sim1_dirty = bx_dbg_callback[1].dirty_page_tbl[i];
|
|
Bit32u page_start = i * 1024 * 4;
|
|
|
|
if ((sim0_dirty != sim1_dirty) || sim0_dirty || always_check_page[i]) {
|
|
// Page has been written, compare
|
|
// (mch) I'm quite aware of how hackish this is. I don't care.
|
|
extern Bit8u* SIM1_GET_PHYS_PTR(Bit32u page_start);
|
|
Bit8u* sim0_page_vec = bx_mem0.vector + page_start;
|
|
Bit8u* sim1_page_vec = SIM1_GET_PHYS_PTR(page_start);
|
|
|
|
if (memcmp(sim0_page_vec, sim1_page_vec, 1024 * 4)) {
|
|
printf("COSIM ERROR Physical page %08x differs in content\n", page_start);
|
|
for (int j = 0; j < 1024 * 4; j++) {
|
|
if (sim0_page_vec[j] != sim1_page_vec[j]) {
|
|
printf("%08x %s: %02x %s: %02x\n",
|
|
page_start+j, SIM_NAME0, sim0_page_vec[j], SIM_NAME1_STR, sim1_page_vec[j]);
|
|
}
|
|
}
|
|
ret = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ret) {
|
|
fprintf(stderr,
|
|
#if BX_DBG_ICOUNT_SIZE == 32
|
|
"*** Memory divergence ***: last know synchronized icount was %lu\n",
|
|
(unsigned long) bx_debugger.last_sync_icount
|
|
#else // BX_DBG_ICOUNT_SIZE == 64
|
|
"*** Memory divergence ***: last know synchronized icount was %Lu\n",
|
|
(unsigned long long) bx_debugger.last_sync_icount
|
|
#endif
|
|
);
|
|
}
|
|
|
|
clear_dirty_bits();
|
|
|
|
return ret;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
void
|
|
bx_dbg_print_guard_results(void)
|
|
{
|
|
unsigned i;
|
|
unsigned sim;
|
|
|
|
for (sim=0; sim<BX_NUM_SIMULATORS; sim++) {
|
|
if (bx_guard_found[sim].guard_found & BX_DBG_GUARD_ICOUNT) {
|
|
}
|
|
else if (bx_guard_found[sim].guard_found & BX_DBG_GUARD_CTRL_C) {
|
|
}
|
|
#if BX_DBG_SUPPORT_VIR_BPOINT
|
|
else if (bx_guard_found[sim].guard_found & BX_DBG_GUARD_IADDR_VIR) {
|
|
i = bx_guard_found[sim].iaddr_index;
|
|
fprintf(stderr, "(%u) Breakpoint %u, 0x%x (0x%x:0x%x)\n",
|
|
sim,
|
|
bx_guard.iaddr.vir[i].bpoint_id,
|
|
bx_guard_found[sim].laddr,
|
|
bx_guard_found[sim].cs,
|
|
bx_guard_found[sim].eip);
|
|
}
|
|
#endif
|
|
#if BX_DBG_SUPPORT_LIN_BPOINT
|
|
else if (bx_guard_found[sim].guard_found & BX_DBG_GUARD_IADDR_LIN) {
|
|
i = bx_guard_found[sim].iaddr_index;
|
|
fprintf(stderr, "(%u) Breakpoint %u, 0x%x in ?? ()\n",
|
|
sim,
|
|
bx_guard.iaddr.lin[i].bpoint_id,
|
|
bx_guard_found[sim].laddr);
|
|
}
|
|
#endif
|
|
#if BX_DBG_SUPPORT_PHY_BPOINT
|
|
else if (bx_guard_found[sim].guard_found & BX_DBG_GUARD_IADDR_PHY) {
|
|
i = bx_guard_found[sim].iaddr_index;
|
|
fprintf(stderr, "(%u) Breakpoint %u, 0x%x in ?? ()\n",
|
|
sim,
|
|
bx_guard.iaddr.phy[i].bpoint_id,
|
|
bx_guard_found[sim].laddr);
|
|
}
|
|
#endif
|
|
else if (BX_CPU_THIS_PTR stop_reason == STOP_MAGIC_BREAK_POINT) {
|
|
fprintf(stderr, "(%u) Magic breakpoint\n", sim);
|
|
} else if (BX_CPU_THIS_PTR stop_reason == STOP_TRACE) {
|
|
/* Nothing */
|
|
} else if (BX_CPU_THIS_PTR stop_reason == STOP_TIME_BREAK_POINT) {
|
|
fprintf(stderr, "(%u) Caught time breakpoint\n", sim);
|
|
} else if (BX_CPU_THIS_PTR stop_reason == STOP_MODE_BREAK_POINT) {
|
|
fprintf(stderr, "(%u) Caught vm mode switch breakpoint to %s mode\n",
|
|
sim, BX_CPU_THIS_PTR eflags.vm ? "virtual 86" : "protected");
|
|
} else if (BX_CPU_THIS_PTR stop_reason == STOP_READ_WATCH_POINT) {
|
|
fprintf(stderr, "(%u) Caught read watch point\n", sim);
|
|
} else if (BX_CPU_THIS_PTR stop_reason == STOP_WRITE_WATCH_POINT) {
|
|
fprintf(stderr, "(%u) Caught write watch point\n", sim);
|
|
}
|
|
else {
|
|
fprintf(stderr, "Error: (%u) print_guard_results: guard_found ? (stop reason %u)\n",
|
|
sim, BX_CPU_THIS_PTR stop_reason);
|
|
}
|
|
|
|
|
|
#if BX_DISASM
|
|
if (bx_debugger.auto_disassemble) {
|
|
Bit32u phy;
|
|
Boolean valid;
|
|
|
|
bx_dbg_callback[sim].xlate_linear2phy(bx_guard_found[sim].laddr, &phy, &valid);
|
|
|
|
if (valid) {
|
|
unsigned ilen;
|
|
|
|
bx_dbg_callback[sim].getphymem(phy, 16, bx_disasm_ibuf);
|
|
ilen = bx_disassemble.disasm(bx_guard_found[sim].is_32bit_code,
|
|
bx_disasm_ibuf, bx_disasm_tbuf);
|
|
|
|
if (bx_guard_found[sim].is_32bit_code) {
|
|
fprintf(stderr, "(%u) %04x:%08x (%s): ", sim,
|
|
(unsigned) bx_guard_found[sim].cs,
|
|
(unsigned) bx_guard_found[sim].eip,
|
|
bx_dbg_symbolic_address((BX_CPU_THIS_PTR cr3) >> 12, bx_guard_found[sim].eip, BX_CPU_THIS_PTR sregs[BX_SREG_CS].cache.u.segment.base));
|
|
}
|
|
else {
|
|
fprintf(stderr, "(%u) %04x:%04x: ", sim,
|
|
(unsigned) bx_guard_found[sim].cs,
|
|
(unsigned) bx_guard_found[sim].eip);
|
|
}
|
|
for (unsigned j=0; j<ilen; j++)
|
|
fprintf(stderr, "%02x", (unsigned) bx_disasm_ibuf[j]);
|
|
fprintf(stderr, ": %s\n", bx_disasm_tbuf);
|
|
}
|
|
else {
|
|
fprintf(stderr, "(%u) ??? (physical address not available)\n", sim);
|
|
}
|
|
}
|
|
#endif // #if BX_DISASM
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_breakpoint_changed(void)
|
|
{
|
|
#if BX_DBG_SUPPORT_VIR_BPOINT
|
|
if (bx_guard.iaddr.num_virtual)
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_VIR;
|
|
else
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_IADDR_VIR;
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_LIN_BPOINT
|
|
if (bx_guard.iaddr.num_linear)
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_LIN;
|
|
else
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_IADDR_LIN;
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_PHY_BPOINT
|
|
if (bx_guard.iaddr.num_physical)
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_PHY;
|
|
else
|
|
bx_guard.guard_for &= ~BX_DBG_GUARD_IADDR_PHY;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_del_breakpoint_command(unsigned handle)
|
|
{
|
|
unsigned i;
|
|
|
|
#if BX_DBG_SUPPORT_VIR_BPOINT
|
|
// see if breakpoint is a virtual breakpoint
|
|
for (i=0; i<bx_guard.iaddr.num_virtual; i++) {
|
|
if (bx_guard.iaddr.vir[i].bpoint_id == handle) {
|
|
// found breakpoint, delete it by shifting remaining entries left
|
|
for (unsigned j=i; j<(bx_guard.iaddr.num_virtual-1); j++) {
|
|
bx_guard.iaddr.vir[j] = bx_guard.iaddr.vir[j+1];
|
|
}
|
|
bx_guard.iaddr.num_virtual--;
|
|
goto done;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_LIN_BPOINT
|
|
// see if breakpoint is a linear breakpoint
|
|
for (i=0; i<bx_guard.iaddr.num_linear; i++) {
|
|
if (bx_guard.iaddr.lin[i].bpoint_id == handle) {
|
|
// found breakpoint, delete it by shifting remaining entries left
|
|
for (unsigned j=i; j<(bx_guard.iaddr.num_linear-1); j++) {
|
|
bx_guard.iaddr.lin[j] = bx_guard.iaddr.lin[j+1];
|
|
}
|
|
bx_guard.iaddr.num_linear--;
|
|
goto done;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_PHY_BPOINT
|
|
// see if breakpoint is a physical breakpoint
|
|
for (i=0; i<bx_guard.iaddr.num_physical; i++) {
|
|
if (bx_guard.iaddr.phy[i].bpoint_id == handle) {
|
|
// found breakpoint, delete it by shifting remaining entries left
|
|
for (unsigned j=i; j<(bx_guard.iaddr.num_physical-1); j++) {
|
|
bx_guard.iaddr.phy[j] = bx_guard.iaddr.phy[j+1];
|
|
}
|
|
bx_guard.iaddr.num_physical--;
|
|
goto done;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
fprintf(stderr, "Error: breakpoint %u not found.\n", handle);
|
|
return;
|
|
|
|
done:
|
|
bx_dbg_breakpoint_changed();
|
|
}
|
|
|
|
void
|
|
bx_dbg_vbreakpoint_command(Boolean specific, Bit32u cs, Bit32u eip)
|
|
{
|
|
#if BX_DBG_SUPPORT_VIR_BPOINT
|
|
if (specific == 0) {
|
|
fprintf(stderr, "Error: vbreak without address not implemented yet.\n");
|
|
return;
|
|
}
|
|
|
|
if (bx_guard.iaddr.num_virtual >= BX_DBG_MAX_VIR_BPOINTS) {
|
|
fprintf(stderr, "Error: no more virtual breakpoint slots left.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_MAX_VIR_BPOINTS.\n");
|
|
return;
|
|
}
|
|
|
|
bx_guard.iaddr.vir[bx_guard.iaddr.num_virtual].cs = cs;
|
|
bx_guard.iaddr.vir[bx_guard.iaddr.num_virtual].eip = eip;
|
|
bx_guard.iaddr.vir[bx_guard.iaddr.num_virtual].bpoint_id = bx_debugger.next_bpoint_id++;
|
|
bx_guard.iaddr.num_virtual++;
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_VIR;
|
|
|
|
#else
|
|
fprintf(stderr, "Error: virtual breakpoint support not compiled in.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_SUPPORT_VIR_BPOINT.\n");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_lbreakpoint_command(Boolean specific, Bit32u laddress)
|
|
{
|
|
#if BX_DBG_SUPPORT_LIN_BPOINT
|
|
if (specific == 0) {
|
|
fprintf(stderr, "Error: lbreak without address not implemented yet.\n");
|
|
return;
|
|
}
|
|
|
|
if (bx_guard.iaddr.num_linear >= BX_DBG_MAX_LIN_BPOINTS) {
|
|
fprintf(stderr, "Error: no more linear breakpoint slots left.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_MAX_LIN_BPOINTS.\n");
|
|
return;
|
|
}
|
|
|
|
bx_guard.iaddr.lin[bx_guard.iaddr.num_linear].addr = laddress;
|
|
bx_guard.iaddr.lin[bx_guard.iaddr.num_linear].bpoint_id = bx_debugger.next_bpoint_id++;
|
|
bx_guard.iaddr.num_linear++;
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_LIN;
|
|
|
|
#else
|
|
fprintf(stderr, "Error: linear breakpoint support not compiled in.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_SUPPORT_LIN_BPOINT.\n");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_pbreakpoint_command(Boolean specific, Bit32u paddress)
|
|
{
|
|
#if BX_DBG_SUPPORT_PHY_BPOINT
|
|
if (specific == 0) {
|
|
fprintf(stderr, "Error: pbreak without address not implemented yet.\n");
|
|
return;
|
|
}
|
|
|
|
if (bx_guard.iaddr.num_physical >= BX_DBG_MAX_PHY_BPOINTS) {
|
|
fprintf(stderr, "Error: no more physical breakpoint slots left.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_MAX_PHY_BPOINTS.\n");
|
|
return;
|
|
}
|
|
|
|
bx_guard.iaddr.phy[bx_guard.iaddr.num_physical].addr = paddress;
|
|
bx_guard.iaddr.phy[bx_guard.iaddr.num_physical].bpoint_id = bx_debugger.next_bpoint_id++;
|
|
bx_guard.iaddr.num_physical++;
|
|
bx_guard.guard_for |= BX_DBG_GUARD_IADDR_PHY;
|
|
|
|
#else
|
|
fprintf(stderr, "Error: physical breakpoint support not compiled in.\n");
|
|
fprintf(stderr, "Error: see BX_DBG_SUPPORT_PHY_BPOINT.\n");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_info_bpoints_command(void)
|
|
{
|
|
unsigned i;
|
|
// Num Type Disp Enb Address What
|
|
// 1 breakpoint keep y 0x00010664 in main at temp.c:7
|
|
|
|
fprintf(stderr, "Num Type Disp Enb Address\n");
|
|
#if BX_DBG_SUPPORT_VIR_BPOINT
|
|
for (i=0; i<bx_guard.iaddr.num_virtual; i++) {
|
|
fprintf(stderr, "%3u ", bx_guard.iaddr.vir[i].bpoint_id);
|
|
fprintf(stderr, "vbreakpoint ");
|
|
fprintf(stderr, "keep ");
|
|
fprintf(stderr, "y ");
|
|
fprintf(stderr, "0x%04x:0x%08x\n",
|
|
bx_guard.iaddr.vir[i].cs,
|
|
bx_guard.iaddr.vir[i].eip);
|
|
}
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_LIN_BPOINT
|
|
for (i=0; i<bx_guard.iaddr.num_linear; i++) {
|
|
fprintf(stderr, "%3u ", bx_guard.iaddr.lin[i].bpoint_id);
|
|
fprintf(stderr, "lbreakpoint ");
|
|
fprintf(stderr, "keep ");
|
|
fprintf(stderr, "y ");
|
|
fprintf(stderr, "0x%08x\n",
|
|
bx_guard.iaddr.lin[i].addr);
|
|
}
|
|
#endif
|
|
|
|
#if BX_DBG_SUPPORT_PHY_BPOINT
|
|
for (i=0; i<bx_guard.iaddr.num_physical; i++) {
|
|
fprintf(stderr, "%3u ", bx_guard.iaddr.phy[i].bpoint_id);
|
|
fprintf(stderr, "pbreakpoint ");
|
|
fprintf(stderr, "keep ");
|
|
fprintf(stderr, "y ");
|
|
fprintf(stderr, "0x%08x\n",
|
|
bx_guard.iaddr.phy[i].addr);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_set_command(char *p1, char *p2, char *p3)
|
|
{
|
|
fprintf(stderr, "Error: %s %s %s: command 'set' not implemented yet.\n",
|
|
p1, p2, p3);
|
|
}
|
|
|
|
void
|
|
bx_dbg_take_command(char *what, unsigned n)
|
|
{
|
|
if ( !strcmp(what, "dma") ) {
|
|
unsigned i;
|
|
if (n == 0) {
|
|
fprintf(stderr, "Error: take what n=0.\n");
|
|
return;
|
|
}
|
|
bx_dbg_post_dma_reports(); // in case there's some pending reports
|
|
bx_dbg_batch_dma.this_many = n;
|
|
|
|
for (i=0; i<n; i++) {
|
|
bx_dbg_callback[0].take_dma();
|
|
}
|
|
|
|
bx_dbg_batch_dma.this_many = 1; // reset to normal
|
|
bx_dbg_post_dma_reports(); // print reports and flush
|
|
if (bx_guard.report.dma)
|
|
fprintf(stderr, "done\n");
|
|
}
|
|
else if ( !strcmp(what, "irq") ) {
|
|
bx_dbg_callback[0].take_irq();
|
|
|
|
if (bx_guard.report.irq)
|
|
fprintf(stderr, "done\n");
|
|
}
|
|
else {
|
|
fprintf(stderr, "Error: Take '%s' not understood.\n", what);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_info_registers_command(void)
|
|
{
|
|
Bit32u reg;
|
|
bx_dbg_cpu_t cpu;
|
|
|
|
for (unsigned i=0; i<BX_NUM_SIMULATORS; i++) {
|
|
memset(&cpu, 0, sizeof(cpu));
|
|
bx_dbg_callback[i].get_cpu(&cpu);
|
|
|
|
#if (BX_NUM_SIMULATORS > 1)
|
|
fprintf(stderr, "SIM[%u]:\n", i);
|
|
#endif
|
|
reg = cpu.eax;
|
|
fprintf(stderr, "eax 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.ecx;
|
|
fprintf(stderr, "ecx 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.edx;
|
|
fprintf(stderr, "edx 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.ebx;
|
|
fprintf(stderr, "ebx 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
|
|
reg = cpu.esp;
|
|
fprintf(stderr, "esp 0x%-8x\t0x%-8x\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.ebp;
|
|
fprintf(stderr, "ebp 0x%-8x\t0x%-8x\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.esi;
|
|
fprintf(stderr, "esi 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.edi;
|
|
fprintf(stderr, "edi 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
|
|
reg = cpu.eip;
|
|
fprintf(stderr, "eip 0x%-8x\t0x%-8x\n", (unsigned) reg, (int) reg);
|
|
|
|
reg = cpu.eflags;
|
|
fprintf(stderr, "eflags 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
|
|
reg = cpu.cs.sel;
|
|
fprintf(stderr, "cs 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.ss.sel;
|
|
fprintf(stderr, "ss 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.ds.sel;
|
|
fprintf(stderr, "ds 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.es.sel;
|
|
fprintf(stderr, "es 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.fs.sel;
|
|
fprintf(stderr, "fs 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
reg = cpu.gs.sel;
|
|
fprintf(stderr, "gs 0x%-8x\t%d\n", (unsigned) reg, (int) reg);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_info_program_command(void)
|
|
{
|
|
fprintf(stderr, " Using the running image of child process -1.\n");
|
|
fprintf(stderr, "Program stopped at 0x0.\n");
|
|
fprintf(stderr, "It stopped at breakpoint 0.\n");
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_dump_cpu_command(void)
|
|
{
|
|
bx_dbg_cpu_t cpu;
|
|
|
|
for (unsigned i=0; i<BX_NUM_SIMULATORS; i++ ) {
|
|
bx_dbg_callback[i].get_cpu(&cpu);
|
|
|
|
#if (BX_NUM_SIMULATORS >= 2)
|
|
fprintf(stderr, "CPU#%u\n", i);
|
|
#endif
|
|
fprintf(stderr, "eax:0x%x\n", (unsigned) cpu.eax);
|
|
fprintf(stderr, "ebx:0x%x\n", (unsigned) cpu.ebx);
|
|
fprintf(stderr, "ecx:0x%x\n", (unsigned) cpu.ecx);
|
|
fprintf(stderr, "edx:0x%x\n", (unsigned) cpu.edx);
|
|
|
|
fprintf(stderr, "ebp:0x%x\n", (unsigned) cpu.ebp);
|
|
fprintf(stderr, "esi:0x%x\n", (unsigned) cpu.esi);
|
|
fprintf(stderr, "edi:0x%x\n", (unsigned) cpu.edi);
|
|
fprintf(stderr, "esp:0x%x\n", (unsigned) cpu.esp);
|
|
|
|
fprintf(stderr, "eflags:0x%x\n", (unsigned) cpu.eflags);
|
|
fprintf(stderr, "eip:0x%x\n", (unsigned) cpu.eip);
|
|
|
|
fprintf(stderr, "cs:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.cs.sel, (unsigned) cpu.cs.des_l,
|
|
(unsigned) cpu.cs.des_h, (unsigned) cpu.cs.valid);
|
|
|
|
fprintf(stderr, "ss:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.ss.sel, (unsigned) cpu.ss.des_l,
|
|
(unsigned) cpu.ss.des_h, (unsigned) cpu.ss.valid);
|
|
|
|
fprintf(stderr, "ds:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.ds.sel, (unsigned) cpu.ds.des_l,
|
|
(unsigned) cpu.ds.des_h, (unsigned) cpu.ds.valid);
|
|
|
|
fprintf(stderr, "es:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.es.sel, (unsigned) cpu.es.des_l,
|
|
(unsigned) cpu.es.des_h, (unsigned) cpu.es.valid);
|
|
|
|
fprintf(stderr, "fs:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.fs.sel, (unsigned) cpu.fs.des_l,
|
|
(unsigned) cpu.fs.des_h, (unsigned) cpu.fs.valid);
|
|
|
|
fprintf(stderr, "gs:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.gs.sel, (unsigned) cpu.gs.des_l,
|
|
(unsigned) cpu.gs.des_h, (unsigned) cpu.gs.valid);
|
|
|
|
fprintf(stderr, "ldtr:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.ldtr.sel, (unsigned) cpu.ldtr.des_l,
|
|
(unsigned) cpu.ldtr.des_h, (unsigned) cpu.ldtr.valid);
|
|
|
|
fprintf(stderr, "tr:s=0x%x, dl=0x%x, dh=0x%x, valid=%u\n",
|
|
(unsigned) cpu.tr.sel, (unsigned) cpu.tr.des_l,
|
|
(unsigned) cpu.tr.des_h, (unsigned) cpu.tr.valid);
|
|
|
|
fprintf(stderr, "gdtr:base=0x%x, limit=0x%x\n",
|
|
(unsigned) cpu.gdtr.base, (unsigned) cpu.gdtr.limit);
|
|
|
|
fprintf(stderr, "idtr:base=0x%x, limit=0x%x\n",
|
|
(unsigned) cpu.idtr.base, (unsigned) cpu.idtr.limit);
|
|
|
|
fprintf(stderr, "dr0:0x%x\n", (unsigned) cpu.dr0);
|
|
fprintf(stderr, "dr1:0x%x\n", (unsigned) cpu.dr1);
|
|
fprintf(stderr, "dr2:0x%x\n", (unsigned) cpu.dr2);
|
|
fprintf(stderr, "dr3:0x%x\n", (unsigned) cpu.dr3);
|
|
fprintf(stderr, "dr6:0x%x\n", (unsigned) cpu.dr6);
|
|
fprintf(stderr, "dr7:0x%x\n", (unsigned) cpu.dr7);
|
|
|
|
fprintf(stderr, "tr3:0x%x\n", (unsigned) cpu.tr3);
|
|
fprintf(stderr, "tr4:0x%x\n", (unsigned) cpu.tr4);
|
|
fprintf(stderr, "tr5:0x%x\n", (unsigned) cpu.tr5);
|
|
fprintf(stderr, "tr6:0x%x\n", (unsigned) cpu.tr6);
|
|
fprintf(stderr, "tr7:0x%x\n", (unsigned) cpu.tr7);
|
|
|
|
fprintf(stderr, "cr0:0x%x\n", (unsigned) cpu.cr0);
|
|
fprintf(stderr, "cr1:0x%x\n", (unsigned) cpu.cr1);
|
|
fprintf(stderr, "cr2:0x%x\n", (unsigned) cpu.cr2);
|
|
fprintf(stderr, "cr3:0x%x\n", (unsigned) cpu.cr3);
|
|
fprintf(stderr, "cr4:0x%x\n", (unsigned) cpu.cr4);
|
|
|
|
fprintf(stderr, "inhibit_mask:%u\n", cpu.inhibit_mask);
|
|
}
|
|
|
|
#if BX_PCI_SUPPORT
|
|
if (bx_options.i440FXSupport) {
|
|
bx_devices.pci->print_i440fx_state(stderr);
|
|
}
|
|
#endif
|
|
|
|
fprintf(stderr, "done\n");
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_examine_command(char *command, char *format, Boolean format_passed,
|
|
Bit32u addr, Boolean addr_passed, int simulator)
|
|
{
|
|
unsigned repeat_count, i;
|
|
char ch, display_format, unit_size;
|
|
Boolean iteration;
|
|
unsigned data_size;
|
|
Boolean paddr_valid;
|
|
Bit32u paddr;
|
|
Bit8u data8;
|
|
Bit16u data16;
|
|
Bit32u data32;
|
|
unsigned columns, per_line, offset;
|
|
unsigned char digit;
|
|
unsigned biti;
|
|
Boolean is_linear;
|
|
unsigned char databuf[8];
|
|
|
|
if (simulator == 0)
|
|
printf("[%s]:\n", SIM_NAME0);
|
|
else
|
|
printf("[%s]:\n", SIM_NAME1_STR);
|
|
|
|
// If command was the extended "xp" command, meaning eXamine Physical memory,
|
|
// then flag memory address as physical, rather than linear.
|
|
if (strcmp(command, "xp") == 0) {
|
|
is_linear = 0;
|
|
}
|
|
else {
|
|
is_linear = 1;
|
|
}
|
|
|
|
if (addr_passed==0)
|
|
addr = bx_debugger.default_addr;
|
|
|
|
if (format_passed==0) {
|
|
display_format = bx_debugger.default_display_format;
|
|
unit_size = bx_debugger.default_unit_size;
|
|
repeat_count = 1;
|
|
}
|
|
else {
|
|
if (format==NULL) {
|
|
fprintf(stderr, "dbg_examine: format NULL\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
if (strlen(format) < 2) {
|
|
fprintf(stderr, "dbg_examine: invalid format passed.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
if (format[0] != '/') {
|
|
fprintf(stderr, "dbg_examine: '/' is not first char of format.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
format++;
|
|
repeat_count = 0;
|
|
ch = *format;
|
|
iteration = 0;
|
|
|
|
while ( (ch>='0') && (ch<='9') ) {
|
|
iteration = 1;
|
|
repeat_count = 10*repeat_count + (ch-'0');
|
|
format++;
|
|
ch = *format;
|
|
}
|
|
|
|
if (iteration==0) {
|
|
// if no count given, use default
|
|
repeat_count = 1;
|
|
}
|
|
else if (repeat_count==0) {
|
|
// count give, but zero is an error
|
|
fprintf(stderr, "dbg_examine: repeat count given but is zero.\n");
|
|
return;
|
|
}
|
|
|
|
|
|
// set up the default display format and unit size parameters
|
|
display_format = bx_debugger.default_display_format;
|
|
unit_size = bx_debugger.default_unit_size;
|
|
|
|
for (i=0; i<=1; i++) {
|
|
if (ch==0) break; // bail on null character
|
|
switch (ch) {
|
|
case 'x': // hex
|
|
case 'd': // signed decimal
|
|
case 'u': // unsigned decimal
|
|
case 'o': // octal
|
|
case 't': // binary
|
|
case 'c': // chars
|
|
case 's': // null terminated string
|
|
case 'i': // machine instruction
|
|
display_format = ch;
|
|
break;
|
|
|
|
case 'b': // bytes
|
|
case 'h': // halfwords (two bytes)
|
|
case 'w': // words (4 bytes)
|
|
case 'g': // giant words (8 bytes)
|
|
unit_size = ch;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "dbg_examine: invalid format passed.\n");
|
|
bx_dbg_exit(1);
|
|
break;
|
|
}
|
|
format++;
|
|
ch = *format;
|
|
}
|
|
|
|
// store current options as default
|
|
bx_debugger.default_display_format = display_format;
|
|
bx_debugger.default_unit_size = unit_size;
|
|
}
|
|
|
|
//fprintf(stderr, " repeat count was %u\n", repeat_count);
|
|
//fprintf(stderr, " display_format = '%c'\n", display_format);
|
|
//fprintf(stderr, " unit_size = '%c'\n", unit_size);
|
|
|
|
if ( (display_format == 'i') || (display_format == 's') ) {
|
|
fprintf(stderr, "error: dbg_examine: 'i' and 's' formats not supported.\n");
|
|
return;
|
|
}
|
|
|
|
if (unit_size == 'g') {
|
|
fprintf(stderr, "error: dbg_examine: 'g' (8-byte) unit size not supported.\n");
|
|
return;
|
|
}
|
|
|
|
data_size = 0;
|
|
per_line = 0;
|
|
offset = 0;
|
|
|
|
switch (unit_size) {
|
|
case 'b': data_size = 1; per_line = 8; break;
|
|
case 'h': data_size = 2; per_line = 8; break;
|
|
case 'w': data_size = 4; per_line = 4; break;
|
|
//case 'g': data_size = 8; per_line = 2; break;
|
|
}
|
|
|
|
columns = per_line + 1; // set current number columns past limit
|
|
|
|
for (i=1; i<=repeat_count; i++) {
|
|
|
|
if (columns > per_line) {
|
|
// if not 1st run, need a newline from last line
|
|
if (i!=1)
|
|
fprintf(stderr, "\n");
|
|
fprintf(stderr, "0x%x <bogus+%u>:", addr, offset);
|
|
columns = 1;
|
|
}
|
|
|
|
if (is_linear) {
|
|
bx_dbg_callback[simulator].xlate_linear2phy(addr, &paddr, &paddr_valid);
|
|
if (!paddr_valid) {
|
|
fprintf(stderr, "error: examine memory: no tranlation for linear-to-phy mem available.\n");
|
|
return;
|
|
}
|
|
}
|
|
else {
|
|
paddr = addr; // address is already physical address
|
|
}
|
|
|
|
bx_dbg_callback[simulator].getphymem(paddr, data_size, databuf);
|
|
//FIXME HanishKVC The char display for data to be properly integrated
|
|
// so that repeat_count, columns, etc. can be set or used properly.
|
|
// Also for data_size of 2 and 4 how to display the individual
|
|
// characters i.e in which order to be decided.
|
|
switch (data_size) {
|
|
case 1:
|
|
data8 = databuf[0];
|
|
switch (display_format) {
|
|
case 'x': fprintf(stderr, "\t0x%02x", (unsigned) data8); break;
|
|
case 'd': fprintf(stderr, "\t%d", (int) (Bit8s) data8); break;
|
|
case 'u': fprintf(stderr, "\t%u", (unsigned) data8); break;
|
|
case 'o': fprintf(stderr, "\t%o", (unsigned) data8); break;
|
|
case 't':
|
|
fputc('\t', stderr);
|
|
for (biti=7; ; biti--) {
|
|
digit = (data8 >> biti) & 0x01;
|
|
fputc(digit + '0', stderr);
|
|
if (biti==0) break;
|
|
}
|
|
break;
|
|
case 'c': fprintf(stderr, " %c",data8); break;
|
|
}
|
|
break;
|
|
|
|
case 2:
|
|
#ifdef BX_LITTLE_ENDIAN
|
|
data16 = * (Bit16u *) databuf;
|
|
#else
|
|
data16 = (databuf[1]<<8) | databuf[0];
|
|
#endif
|
|
switch (display_format) {
|
|
case 'x': fprintf(stderr, "\t0x%04x", (unsigned) data16); break;
|
|
case 'd': fprintf(stderr, "\t%d", (int) (Bit16s) data16); break;
|
|
case 'u': fprintf(stderr, "\t%u", (unsigned) data16); break;
|
|
case 'o': fprintf(stderr, "\t%o", (unsigned) data16); break;
|
|
case 't':
|
|
fputc('\t', stderr);
|
|
for (biti=15; ; biti--) {
|
|
digit = (data16 >> biti) & 0x01;
|
|
fputc(digit + '0', stderr);
|
|
if (biti==0) break;
|
|
}
|
|
break;
|
|
case 'c': fprintf(stderr, " %c %c",data16>>8,data16&0xff); break;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
#ifdef BX_LITTLE_ENDIAN
|
|
data32 = * (Bit32u *) databuf;
|
|
#else
|
|
data32 = (databuf[3]<<24) | (databuf[2]<<16) |
|
|
(databuf[1]<<8) | databuf[0];
|
|
#endif
|
|
switch (display_format) {
|
|
case 'x': fprintf(stderr, "\t0x%08x", (unsigned) data32); break;
|
|
case 'd': fprintf(stderr, "\t%d", (int) (Bit32s) data32); break;
|
|
case 'u': fprintf(stderr, "\t%u", (unsigned) data32); break;
|
|
case 'o': fprintf(stderr, "\t%o", (unsigned) data32); break;
|
|
case 't':
|
|
fputc('\t', stderr);
|
|
for (biti=31; ; biti--) {
|
|
digit = (data32 >> biti) & 0x01;
|
|
fputc(digit + '0', stderr);
|
|
if (biti==0) break;
|
|
}
|
|
break;
|
|
case 'c':
|
|
fprintf(stderr, " %c %c",data32>>24,(data32>>16)&0xff);
|
|
fprintf(stderr, " %c %c",(data32>>8)&0xff,data32&0xff);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
|
|
addr += data_size;
|
|
bx_debugger.default_addr = addr;
|
|
columns++;
|
|
offset += data_size;
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
void
|
|
bx_dbg_setpmem_command(Bit32u addr, unsigned len, Bit32u val)
|
|
{
|
|
Boolean is_OK;
|
|
Bit8u buf[4];
|
|
|
|
switch ( len ) {
|
|
case 1:
|
|
buf[0] = (Bit8u) val;
|
|
break;
|
|
case 2:
|
|
buf[0] = val & 0xff;
|
|
buf[1] = (val>>8) & 0xff;
|
|
break;
|
|
case 4:
|
|
buf[0] = val & 0xff; val >>= 8;
|
|
buf[1] = val & 0xff; val >>= 8;
|
|
buf[2] = val & 0xff; val >>= 8;
|
|
buf[3] = val & 0xff;
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Error: setpmem: bad length value = %u\n", len);
|
|
return;
|
|
}
|
|
|
|
is_OK = bx_dbg_callback[0].setphymem(addr, len, buf);
|
|
if (!is_OK) {
|
|
fprintf(stderr, "Error: setpmem: could not set memory, out of physical bounds?\n");
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_set_symbol_command(char *symbol, Bit32u val)
|
|
{
|
|
Boolean is_OK;
|
|
symbol++; // get past '$'
|
|
|
|
if ( !strcmp(symbol, "eax") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EAX, val);
|
|
}
|
|
else if ( !strcmp(symbol, "ecx") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_ECX, val);
|
|
}
|
|
else if ( !strcmp(symbol, "edx") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EDX, val);
|
|
}
|
|
else if ( !strcmp(symbol, "ebx") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EBX, val);
|
|
}
|
|
else if ( !strcmp(symbol, "esp") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_ESP, val);
|
|
}
|
|
else if ( !strcmp(symbol, "ebp") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EBP, val);
|
|
}
|
|
else if ( !strcmp(symbol, "esi") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_ESI, val);
|
|
}
|
|
else if ( !strcmp(symbol, "edi") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EDI, val);
|
|
}
|
|
else if ( !strcmp(symbol, "eip") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EIP, val);
|
|
}
|
|
else if ( !strcmp(symbol, "eflags") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_EFLAGS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "cs") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_CS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "ss") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_SS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "ds") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_DS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "es") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_ES, val);
|
|
}
|
|
else if ( !strcmp(symbol, "fs") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_FS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "gs") ) {
|
|
is_OK = bx_dbg_callback[0].set_reg(BX_DBG_REG_GS, val);
|
|
}
|
|
else if ( !strcmp(symbol, "synchronous_dma") ) {
|
|
bx_guard.async.dma = !val;
|
|
return;
|
|
}
|
|
else if ( !strcmp(symbol, "synchronous_irq") ) {
|
|
bx_guard.async.irq = !val;
|
|
return;
|
|
}
|
|
else if ( !strcmp(symbol, "event_reports") ) {
|
|
bx_guard.report.irq = val;
|
|
bx_guard.report.a20 = val;
|
|
bx_guard.report.io = val;
|
|
bx_guard.report.ucmem = val;
|
|
bx_guard.report.dma = val;
|
|
return;
|
|
}
|
|
else if ( !strcmp(symbol, "auto_disassemble") ) {
|
|
bx_debugger.auto_disassemble = (val > 0);
|
|
return;
|
|
}
|
|
else if ( !strcmp(symbol, "disassemble_size") ) {
|
|
if ( (val!=16) && (val!=32) ) {
|
|
fprintf(stderr, "Error: disassemble_size must be 16 or 32.\n");
|
|
return;
|
|
}
|
|
bx_debugger.disassemble_size = val;
|
|
return;
|
|
}
|
|
else {
|
|
fprintf(stderr, "Error: set: unrecognized symbol.\n");
|
|
return;
|
|
}
|
|
|
|
if (!is_OK) {
|
|
fprintf(stderr, "Error: could not set register '%s'.\n", symbol);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_query_command(char *what)
|
|
{
|
|
unsigned pending;
|
|
|
|
if ( !strcmp(what, "pending") ) {
|
|
pending = bx_dbg_callback[0].query_pending();
|
|
|
|
if ( pending & BX_DBG_PENDING_DMA )
|
|
fprintf(stderr, "pending DMA\n");
|
|
|
|
if ( pending & BX_DBG_PENDING_IRQ )
|
|
fprintf(stderr, "pending IRQ\n");
|
|
|
|
if (!pending)
|
|
fprintf(stderr, "pending none\n");
|
|
|
|
fprintf(stderr, "done\n");
|
|
}
|
|
else {
|
|
fprintf(stderr, "Error: Query '%s' not understood.\n", what);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_set_cpu_command(void)
|
|
{
|
|
FILE *fp;
|
|
int reti;
|
|
char *rets;
|
|
Boolean retb;
|
|
unsigned long ul1, ul2, ul3, ul4;
|
|
|
|
bx_dbg_cpu_t cpu;
|
|
|
|
fp = bx_infile_stack[bx_infile_stack_index].fp;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "eax:0x%lx", &ul1); cpu.eax = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ebx:0x%lx", &ul1); cpu.ebx = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ecx:0x%lx", &ul1); cpu.ecx = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "edx:0x%lx", &ul1); cpu.edx = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ebp:0x%lx", &ul1); cpu.ebp = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "esi:0x%lx", &ul1); cpu.esi = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "edi:0x%lx", &ul1); cpu.edi = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "esp:0x%lx", &ul1); cpu.esp = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "eflags:0x%lx", &ul1); cpu.eflags = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "eip:0x%lx", &ul1); cpu.eip = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cs:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.cs.sel = (Bit16u) ul1;
|
|
cpu.cs.des_l = ul2;
|
|
cpu.cs.des_h = ul3;
|
|
cpu.cs.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ss:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.ss.sel = (Bit16u) ul1;
|
|
cpu.ss.des_l = ul2;
|
|
cpu.ss.des_h = ul3;
|
|
cpu.ss.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ds:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.ds.sel = (Bit16u) ul1;
|
|
cpu.ds.des_l = ul2;
|
|
cpu.ds.des_h = ul3;
|
|
cpu.ds.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "es:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.es.sel = (Bit16u) ul1;
|
|
cpu.es.des_l = ul2;
|
|
cpu.es.des_h = ul3;
|
|
cpu.es.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "fs:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.fs.sel = (Bit16u) ul1;
|
|
cpu.fs.des_l = ul2;
|
|
cpu.fs.des_h = ul3;
|
|
cpu.fs.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "gs:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.gs.sel = (Bit16u) ul1;
|
|
cpu.gs.des_l = ul2;
|
|
cpu.gs.des_h = ul3;
|
|
cpu.gs.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "ldtr:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.ldtr.sel = (Bit16u) ul1;
|
|
cpu.ldtr.des_l = ul2;
|
|
cpu.ldtr.des_h = ul3;
|
|
cpu.ldtr.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr:s=0x%lx, dl=0x%lx, dh=0x%lx, valid=%lu",
|
|
&ul1, &ul2, &ul3, &ul4);
|
|
cpu.tr.sel = (Bit16u) ul1;
|
|
cpu.tr.des_l = ul2;
|
|
cpu.tr.des_h = ul3;
|
|
cpu.tr.valid = ul4;
|
|
if (reti != 4) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "gdtr:base=0x%lx, limit=0x%lx",
|
|
&ul1, &ul2);
|
|
cpu.gdtr.base = ul1;
|
|
cpu.gdtr.limit = ul2;
|
|
if (reti != 2) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "idtr:base=0x%lx, limit=0x%lx",
|
|
&ul1, &ul2);
|
|
cpu.idtr.base = ul1;
|
|
cpu.idtr.limit = ul2;
|
|
if (reti != 2) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr0:0x%lx", &ul1); cpu.dr0 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr1:0x%lx", &ul1); cpu.dr1 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr2:0x%lx", &ul1); cpu.dr2 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr3:0x%lx", &ul1); cpu.dr3 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr6:0x%lx", &ul1); cpu.dr6 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "dr7:0x%lx", &ul1); cpu.dr7 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr3:0x%lx", &ul1); cpu.tr3 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr4:0x%lx", &ul1); cpu.tr4 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr5:0x%lx", &ul1); cpu.tr5 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr6:0x%lx", &ul1); cpu.tr6 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "tr7:0x%lx", &ul1); cpu.tr7 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cr0:0x%lx", &ul1); cpu.cr0 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cr1:0x%lx", &ul1); cpu.cr1 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cr2:0x%lx", &ul1); cpu.cr2 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cr3:0x%lx", &ul1); cpu.cr3 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "cr4:0x%lx", &ul1); cpu.cr4 = ul1;
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "inhibit_mask:%u", &cpu.inhibit_mask);
|
|
if (reti != 1) goto scanf_error;
|
|
|
|
rets = fgets(tmp_buf, 512, fp); if (!rets) goto eof_error;
|
|
reti = sscanf(tmp_buf, "done");
|
|
if (reti != 0) goto scanf_error;
|
|
|
|
retb = bx_dbg_callback[0].set_cpu(&cpu);
|
|
if (retb == 0)
|
|
fprintf(stderr, "Error: set_cpu encountered error\n");
|
|
else
|
|
fprintf(stderr, "OK\n");
|
|
return;
|
|
|
|
eof_error:
|
|
fprintf(stderr, "Error: EOF encountered in set_cpu input stream\n");
|
|
return;
|
|
|
|
scanf_error:
|
|
fprintf(stderr, "Error: scanf returned error in set_cpu input stream\n");
|
|
return;
|
|
}
|
|
|
|
void
|
|
bx_dbg_disassemble_command(Bit32u addr1, Bit32u addr2)
|
|
{
|
|
#if BX_DISASM
|
|
Boolean paddr_valid;
|
|
Bit32u paddr;
|
|
unsigned ilen;
|
|
|
|
|
|
do {
|
|
bx_dbg_callback[0].xlate_linear2phy(addr1, &paddr, &paddr_valid);
|
|
|
|
if (paddr_valid) {
|
|
bx_dbg_callback[0].getphymem(paddr, 16, bx_disasm_ibuf);
|
|
ilen = bx_disassemble.disasm(bx_debugger.disassemble_size==32,
|
|
bx_disasm_ibuf, bx_disasm_tbuf);
|
|
|
|
fprintf(stderr, "%08x: ", (unsigned) addr1);
|
|
for (unsigned j=0; j<ilen; j++)
|
|
fprintf(stderr, "%02x", (unsigned) bx_disasm_ibuf[j]);
|
|
fprintf(stderr, ": %s\n", bx_disasm_tbuf);
|
|
}
|
|
else {
|
|
fprintf(stderr, "??? (physical address not available)\n");
|
|
ilen = 0; // keep compiler happy
|
|
addr1 = addr2; // bail out
|
|
}
|
|
addr1 += ilen;
|
|
} while (addr1 < addr2);
|
|
#else
|
|
UNUSED(addr1);
|
|
UNUSED(addr2);
|
|
#endif // #if BX_DISASM
|
|
}
|
|
|
|
//NOTE simple minded maths logic
|
|
void
|
|
bx_dbg_maths_command(char *command, int data1, int data2)
|
|
{
|
|
if(strcmp(command,"add") == 0)
|
|
{
|
|
fprintf(stderr," %x + %x = %x ", data1, data2, data1+data2);
|
|
}
|
|
else if(strcmp(command,"sub") == 0)
|
|
{
|
|
fprintf(stderr," %x - %x = %x ", data1, data2, data1-data2);
|
|
}
|
|
else if(strcmp(command,"mul") == 0)
|
|
{
|
|
fprintf(stderr," %x * %x = %x ", data1, data2, data1*data2);
|
|
}
|
|
else if(strcmp(command,"div") == 0)
|
|
{
|
|
fprintf(stderr," %x / %x = %x ", data1, data2, data1/data2);
|
|
}
|
|
fprintf(stderr,"\n");
|
|
}
|
|
|
|
//FIXME HanishKVC requires better error checking in POST FIX expression
|
|
//NOTE Uses POST FIX EXPRESSION handling for better maths
|
|
void
|
|
bx_dbg_maths_expression_command(char *expr)
|
|
{
|
|
int data1, data2, res;
|
|
int biti,digit;
|
|
char *next_token;
|
|
|
|
fprintf(stderr,"%s\n",expr);
|
|
|
|
expr++; // skip " in the string token passed
|
|
while(expr[0] == ' ')expr++; // skip any spaces following the "
|
|
|
|
next_token = strtok(expr," ");
|
|
if(next_token == NULL) return;
|
|
data1 = res = strtol(next_token,NULL,0);
|
|
do
|
|
{
|
|
switch(next_token[0])
|
|
{
|
|
case '+':
|
|
res = data1+data2;
|
|
fprintf(stderr," %x + %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '-':
|
|
res = data1-data2;
|
|
fprintf(stderr," %x - %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '*':
|
|
res = data1*data2;
|
|
fprintf(stderr," %x * %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '/':
|
|
res = data1/data2;
|
|
fprintf(stderr," %x / %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '&':
|
|
res = data1 & data2;
|
|
fprintf(stderr," %x & %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '|':
|
|
res = data1 | data2;
|
|
fprintf(stderr," %x | %x = %x ",data1,data2,res);
|
|
data1 = res;
|
|
break;
|
|
case '~':
|
|
res = ~data1;
|
|
fprintf(stderr," ~ %x = %x ",data1,res);
|
|
data1 = res;
|
|
break;
|
|
default:
|
|
data2 = strtol(next_token,NULL,0);
|
|
break;
|
|
}
|
|
next_token = strtok(NULL," ");
|
|
if(next_token == NULL) break;
|
|
}while(1);
|
|
fprintf(stderr,"\n");
|
|
//FIXME HanishKVC If sizeof changes from a Byte addressed to
|
|
// Word addressed machine & so on then the logic
|
|
// below requires to be updated
|
|
fprintf(stderr," Binary of %x : ",res);
|
|
for(biti=(sizeof(int)*8)-1; ; biti--)
|
|
{
|
|
digit = (res >> biti) & 0x01;
|
|
fputc(digit + '0', stderr);
|
|
if(biti==0) break;
|
|
if((biti%4) == 0) fputc(' ',stderr);
|
|
}
|
|
fprintf(stderr,"\n");
|
|
}
|
|
|
|
void
|
|
bx_dbg_v2l_command(unsigned seg_no, Bit32u offset)
|
|
{
|
|
#if BX_NUM_SIMULATORS > 1
|
|
fprintf(stderr, "Error: v2l not supported for nsim > 1\n"
|
|
#else
|
|
bx_dbg_sreg_t sreg;
|
|
Bit32u laddr;
|
|
|
|
if (seg_no > 5) {
|
|
fprintf(stderr, "Error: seg_no out of bounds\n");
|
|
return;
|
|
}
|
|
bx_dbg_callback[0].get_sreg(&sreg, seg_no);
|
|
if (!sreg.valid) {
|
|
fprintf(stderr, "Error: segment valid bit cleared\n");
|
|
return;
|
|
}
|
|
laddr = (sreg.des_l>>16) |
|
|
((sreg.des_h<<16)&0x00ff0000) |
|
|
(sreg.des_h & 0xff000000);
|
|
laddr += offset;
|
|
|
|
fprintf(stderr, "laddr: 0x%x (%u)\n",
|
|
(unsigned) laddr, (unsigned) laddr);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_instrument_command(char *comm)
|
|
{
|
|
#if BX_INSTRUMENTATION
|
|
if ( !strcmp(comm, "start") ) {
|
|
bx_dbg_callback[0].instr_start();
|
|
}
|
|
else if ( !strcmp(comm, "stop") ) {
|
|
bx_dbg_callback[0].instr_stop();
|
|
}
|
|
else if ( !strcmp(comm, "reset") ) {
|
|
bx_dbg_callback[0].instr_reset();
|
|
}
|
|
else if ( !strcmp(comm, "print") ) {
|
|
bx_dbg_callback[0].instr_print();
|
|
}
|
|
else {
|
|
fprintf(stderr, "Error: command instrument %s not implemented.\n", comm);
|
|
bx_dbg_exit(1);
|
|
}
|
|
#else
|
|
UNUSED(comm);
|
|
|
|
fprintf(stderr, "Error: instrumentation not enabled.\n");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_loader_command(char *path_quoted)
|
|
{
|
|
size_t len;
|
|
|
|
// skip beginning double quote
|
|
if (path_quoted[0] == '"')
|
|
path_quoted++;
|
|
|
|
// null out ending quote
|
|
len = strlen(path_quoted);
|
|
if (path_quoted[len - 1] == '"')
|
|
path_quoted[len - 1] = '\0';
|
|
|
|
#if BX_USE_LOADER
|
|
{
|
|
bx_loader_misc_t loader_misc;
|
|
bx_dbg_callback[0].loader(path_quoted, &loader_misc);
|
|
#if 0
|
|
fprintf(stderr, "dr0: 0x%08x\n", loader_misc.dr0);
|
|
fprintf(stderr, "dr1: 0x%08x\n", loader_misc.dr1);
|
|
fprintf(stderr, "dr2: 0x%08x\n", loader_misc.dr2);
|
|
fprintf(stderr, "dr3: 0x%08x\n", loader_misc.dr3);
|
|
fprintf(stderr, "dr6: 0x%08x\n", loader_misc.dr6);
|
|
fprintf(stderr, "dr7: 0x%08x\n", loader_misc.dr7);
|
|
#endif
|
|
bx_cpu.dr0 = loader_misc.dr0;
|
|
bx_cpu.dr1 = loader_misc.dr1;
|
|
bx_cpu.dr2 = loader_misc.dr2;
|
|
bx_cpu.dr3 = loader_misc.dr3;
|
|
bx_cpu.dr7 = loader_misc.dr7;
|
|
}
|
|
#else
|
|
fprintf(stderr, "Error: loader not implemented.\n");
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_doit_command(unsigned n)
|
|
{
|
|
// generic command to add temporary hacks to
|
|
// for debugging purposes
|
|
UNUSED(n);
|
|
|
|
|
|
|
|
bx_dbg.interrupts = n;
|
|
bx_dbg.exceptions = n;
|
|
}
|
|
|
|
void
|
|
bx_dbg_crc_command(Bit32u addr1, Bit32u addr2)
|
|
{
|
|
Bit32u crc1, crc2;
|
|
|
|
if (addr1 >= addr2) {
|
|
fprintf(stderr, "Error: crc: invalid range.\n");
|
|
return;
|
|
}
|
|
|
|
if (!bx_dbg_callback[0].crc32(crc32, addr1, addr2, &crc1)) {
|
|
fprintf(stderr, "sim0: could not CRC memory\n");
|
|
return;
|
|
}
|
|
#if BX_NUM_SIMULATORS == 1
|
|
fprintf(stderr, "0x%lx\n", crc1);
|
|
#else
|
|
if (!bx_dbg_callback[1].crc32(crc32, addr1, addr2, &crc2)) {
|
|
fprintf(stderr, "sim1: could not CRC memory\n");
|
|
return;
|
|
}
|
|
if (crc1 == crc2) {
|
|
fprintf(stderr, "CRC same: 0x%x\n", (unsigned) crc1);
|
|
}
|
|
else {
|
|
fprintf(stderr, "CRC different: sim0=0x%x, sim1=0x%x\n",
|
|
(unsigned) crc1, (unsigned) crc2);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_info_dirty_command(void)
|
|
{
|
|
unsigned char *page_tbl = bx_dbg_callback[0].dirty_page_tbl;
|
|
unsigned page_tbl_size = bx_dbg_callback[0].dirty_page_tbl_size;
|
|
|
|
for (unsigned i=0; i<page_tbl_size; i++) {
|
|
if (page_tbl[i]) {
|
|
fprintf(stderr, "0x%x\n", i);
|
|
page_tbl[i] = 0; // reset to clean
|
|
}
|
|
}
|
|
}
|
|
|
|
//
|
|
// Reports from various events
|
|
//
|
|
|
|
void
|
|
bx_dbg_iac_report(unsigned vector, unsigned irq)
|
|
{
|
|
#if BX_NUM_SIMULATORS > 1
|
|
unsigned tail, master;
|
|
#endif
|
|
|
|
if (doit) fprintf(stderr, "iac report: vector=%u\n", vector);
|
|
|
|
if (bx_guard.report.irq) {
|
|
fprintf(stderr, "event icount=%u IRQ irq=%u vec=%x\n",
|
|
(unsigned) bx_guard_found[0].icount, irq, vector);
|
|
}
|
|
|
|
#if BX_NUM_SIMULATORS > 1
|
|
if (bx_debugger.master_slave_mode == BX_DBG_SLAVE_MODE ) {
|
|
fprintf(stderr, "Error: iac_report: in slave mode.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
// Master simulator mode
|
|
if (bx_debugger.async_journal.size >= BX_DBG_ASYNC_JOURNAL_SIZE) {
|
|
fprintf(stderr, "Error: iac: async journal full.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
if (bx_debugger.async_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.async_journal.head = 0;
|
|
tail = bx_debugger.async_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.async_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_ASYNC_JOURNAL_SIZE) {
|
|
fprintf(stderr, "Error: iac_report: journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
master = bx_debugger.master;
|
|
bx_debugger.async_journal.element[tail].what = BX_DBG_ASYNC_JOURNAL_IAC;
|
|
bx_debugger.async_journal.element[tail].icount = bx_guard_found[master].icount;
|
|
bx_debugger.async_journal.element[tail].u.iac.val = vector;
|
|
|
|
if (bx_debugger.async_journal.size)
|
|
bx_debugger.async_journal.tail++;
|
|
bx_debugger.async_journal.size++;
|
|
#endif
|
|
}
|
|
|
|
void
|
|
bx_dbg_a20_report(unsigned val)
|
|
{
|
|
if (bx_guard.report.a20) {
|
|
fprintf(stderr, "event icount=%u A20 val=%u\n",
|
|
(unsigned) bx_guard_found[0].icount, val);
|
|
}
|
|
}
|
|
|
|
#if BX_NUM_SIMULATORS > 1
|
|
void
|
|
bx_dbg_journal_a20_event(unsigned val)
|
|
{
|
|
unsigned tail, master;
|
|
|
|
if (bx_debugger.master_slave_mode == BX_DBG_SLAVE_MODE ) {
|
|
fprintf(stderr, "Error: a20_report: in slave mode.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
// Master simulator mode
|
|
if (bx_debugger.async_journal.size >= BX_DBG_ASYNC_JOURNAL_SIZE) {
|
|
fprintf(stderr, "Error: async journal full.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
if (bx_debugger.async_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.async_journal.head = 0;
|
|
tail = bx_debugger.async_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.async_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_ASYNC_JOURNAL_SIZE) {
|
|
fprintf(stderr, "Error: a20_report: journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
master = bx_debugger.master;
|
|
bx_debugger.async_journal.element[tail].what = BX_DBG_ASYNC_JOURNAL_A20;
|
|
bx_debugger.async_journal.element[tail].icount = bx_guard_found[master].icount;
|
|
bx_debugger.async_journal.element[tail].u.a20.val = val;
|
|
|
|
if (bx_debugger.async_journal.size)
|
|
bx_debugger.async_journal.tail++;
|
|
bx_debugger.async_journal.size++;
|
|
}
|
|
#endif
|
|
|
|
void
|
|
bx_dbg_io_report(Bit32u addr, unsigned size, unsigned op, Bit32u val)
|
|
{
|
|
if (bx_guard.report.io) {
|
|
fprintf(stderr, "event icount=%u IO addr=0x%x size=%u op=%s val=0x%x\n",
|
|
(unsigned) bx_guard_found[0].icount,
|
|
(unsigned) addr,
|
|
size,
|
|
(op==BX_READ) ? "read" : "write",
|
|
(unsigned) val);
|
|
}
|
|
|
|
// nothing else to do. bx_dbg_inp() and bx_dbg_outp() do the journaling.
|
|
}
|
|
|
|
void
|
|
bx_dbg_ucmem_report(Bit32u addr, unsigned size, unsigned op, Bit32u val)
|
|
{
|
|
if (bx_guard.report.ucmem) {
|
|
fprintf(stderr, "event icount=%u UCmem addr=0x%x size=%u op=%s val=0x%x\n",
|
|
(unsigned) bx_guard_found[0].icount,
|
|
(unsigned) addr,
|
|
size,
|
|
(op==BX_READ) ? "read" : "write",
|
|
(unsigned) val);
|
|
}
|
|
// nothing else to do. bx_dbg_ucmem_read() and bx_dbg_ucmem_write()
|
|
// do the journaling.
|
|
}
|
|
|
|
void
|
|
bx_dbg_dma_report(Bit32u addr, unsigned len, unsigned what, Bit32u val)
|
|
{
|
|
if (bx_dbg_batch_dma.this_many == 0) {
|
|
fprintf(stderr, "%s: DMA batch this_many=0.\n", argv0);
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
// if Q is full, post events (and flush)
|
|
if (bx_dbg_batch_dma.Qsize >= bx_dbg_batch_dma.this_many) {
|
|
fprintf(stderr, "%s: DMA batch Q was not flushed.\n", argv0);
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
// if Q already has MAX elements in it
|
|
if (bx_dbg_batch_dma.Qsize >= BX_BATCH_DMA_BUFSIZE) {
|
|
fprintf(stderr, "%s: DMA batch buffer overrun.\n", argv0);
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
bx_dbg_batch_dma.Qsize++;
|
|
bx_dbg_batch_dma.Q[bx_dbg_batch_dma.Qsize-1].addr = addr;
|
|
bx_dbg_batch_dma.Q[bx_dbg_batch_dma.Qsize-1].len = len;
|
|
bx_dbg_batch_dma.Q[bx_dbg_batch_dma.Qsize-1].what = what;
|
|
bx_dbg_batch_dma.Q[bx_dbg_batch_dma.Qsize-1].val = val;
|
|
bx_dbg_batch_dma.Q[bx_dbg_batch_dma.Qsize-1].icount = bx_guard_found[0].icount;
|
|
|
|
// if Q is full, post events (and flush)
|
|
if (bx_dbg_batch_dma.Qsize >= bx_dbg_batch_dma.this_many)
|
|
bx_dbg_post_dma_reports();
|
|
}
|
|
|
|
void
|
|
bx_dbg_post_dma_reports(void)
|
|
{
|
|
unsigned i;
|
|
unsigned addr, len, what, val;
|
|
unsigned last_addr, last_len, last_what;
|
|
unsigned print_header;
|
|
unsigned first_iteration;
|
|
|
|
if (bx_guard.report.dma) {
|
|
if (bx_dbg_batch_dma.Qsize == 0) return; // nothing batched to print
|
|
|
|
// compress output so all contiguous DMA ops of the same type and size
|
|
// are printed on the same line
|
|
last_addr = bx_dbg_batch_dma.Q[0].addr;
|
|
last_len = bx_dbg_batch_dma.Q[0].len;
|
|
last_what = bx_dbg_batch_dma.Q[0].what;
|
|
first_iteration = 1;
|
|
|
|
for (i=0; i<bx_dbg_batch_dma.Qsize; i++) {
|
|
addr = bx_dbg_batch_dma.Q[i].addr;
|
|
len = bx_dbg_batch_dma.Q[i].len;
|
|
what = bx_dbg_batch_dma.Q[i].what;
|
|
val = bx_dbg_batch_dma.Q[i].val;
|
|
|
|
if (len != last_len)
|
|
print_header = 1;
|
|
else if (what != last_what)
|
|
print_header = 1;
|
|
else if (addr != (last_addr + last_len))
|
|
print_header = 1;
|
|
else
|
|
print_header = 0;
|
|
|
|
// now store current values for next iteration
|
|
last_addr = addr;
|
|
last_len = len;
|
|
last_what = what;
|
|
|
|
if (print_header) {
|
|
if (!first_iteration) // need return from previous line
|
|
fprintf(stderr, "\n");
|
|
else
|
|
first_iteration = 0;
|
|
// need to output the event header
|
|
fprintf(stderr, "event icount=%u DMA addr=0x%x size=%u op=%s val=0x%x",
|
|
(unsigned) bx_dbg_batch_dma.Q[i].icount,
|
|
addr, len, (what==BX_READ) ? "read" : "write",
|
|
val );
|
|
print_header = 0;
|
|
}
|
|
else {
|
|
// *no* need to output the event header
|
|
fprintf(stderr, " 0x%x", val);
|
|
}
|
|
}
|
|
if (bx_dbg_batch_dma.Qsize)
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
// empty Q, regardless of whether reports are printed
|
|
bx_dbg_batch_dma.Qsize = 0;
|
|
}
|
|
|
|
|
|
|
|
|
|
//
|
|
// Cosimulation routines
|
|
//
|
|
|
|
#if (BX_NUM_SIMULATORS >= 2)
|
|
|
|
Bit8u
|
|
bx_dbg_ucmem_read(Bit32u addr)
|
|
{
|
|
Bit8u value;
|
|
unsigned head, tail;
|
|
|
|
if ( bx_debugger.master_slave_mode == BX_DBG_MASTER_MODE ) {
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (bx_debugger.UCmem_journal.size >= BX_DBG_UCMEM_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_ucmem_read: journal full.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
if (bx_debugger.UCmem_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.UCmem_journal.head = 0;
|
|
tail = bx_debugger.UCmem_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.UCmem_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_UCMEM_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_ucmem_read: journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
value = bx_devices.vga->mem_read(addr);
|
|
bx_dbg_ucmem_report(addr, 1, BX_READ, value);
|
|
bx_debugger.UCmem_journal.element[tail].op = BX_READ;
|
|
bx_debugger.UCmem_journal.element[tail].len = 1;
|
|
bx_debugger.UCmem_journal.element[tail].addr = addr;
|
|
bx_debugger.UCmem_journal.element[tail].value = value;
|
|
if (bx_debugger.UCmem_journal.size)
|
|
bx_debugger.UCmem_journal.tail++;
|
|
bx_debugger.UCmem_journal.size++;
|
|
|
|
if (doit)
|
|
fprintf(stderr, "MASTER UCR: head:%u tail%u size:%u\n",
|
|
bx_debugger.UCmem_journal.head,
|
|
bx_debugger.UCmem_journal.tail,
|
|
bx_debugger.UCmem_journal.size);
|
|
|
|
return(value);
|
|
} else {
|
|
value = bx_devices.vga->mem_read(addr);
|
|
return(value);
|
|
}
|
|
}
|
|
else {
|
|
if (bx_debugger.UCmem_journal.size == 0) {
|
|
fprintf(stderr, "Error: ucmem_read: journal empty.\n");
|
|
return(0xff);
|
|
}
|
|
head = bx_debugger.UCmem_journal.head;
|
|
value = bx_debugger.UCmem_journal.element[head].value;
|
|
|
|
if ((bx_debugger.UCmem_journal.element[head].op != BX_READ) ||
|
|
(bx_debugger.UCmem_journal.element[head].len != 1) ||
|
|
(bx_debugger.UCmem_journal.element[head].addr != addr)) {
|
|
|
|
fprintf(stderr, "Error: ucmem_read: out of sync with journal.\n");
|
|
fprintf(stderr, "Error: master: op=%1s len=%u addr=0x%x val=0x%x\n",
|
|
(bx_debugger.UCmem_journal.element[head].op==BX_READ) ? "W" : "R",
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].len,
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].addr,
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].value);
|
|
fprintf(stderr, "Error: slave: op=W len=%u addr=0x%x val=0x%x\n",
|
|
(unsigned) 1, (unsigned) addr, (unsigned) value);
|
|
return(0xff);
|
|
}
|
|
// slave UCmem op in sync with journaled master op, delete this entry
|
|
bx_debugger.UCmem_journal.head++;
|
|
bx_debugger.UCmem_journal.size--;
|
|
return(value);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_ucmem_write(Bit32u addr, Bit8u value)
|
|
{
|
|
unsigned tail, head;
|
|
|
|
if ( bx_debugger.master_slave_mode == BX_DBG_MASTER_MODE ) {
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (bx_debugger.UCmem_journal.size >= BX_DBG_UCMEM_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_ucmem_write: journal full.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
if (bx_debugger.UCmem_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.UCmem_journal.head = 0;
|
|
tail = bx_debugger.UCmem_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.UCmem_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_UCMEM_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_ucmem_write: journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
bx_debugger.UCmem_journal.element[tail].op = BX_WRITE;
|
|
bx_debugger.UCmem_journal.element[tail].len = 1;
|
|
bx_debugger.UCmem_journal.element[tail].addr = addr;
|
|
bx_debugger.UCmem_journal.element[tail].value = value;
|
|
|
|
if (bx_debugger.UCmem_journal.size)
|
|
bx_debugger.UCmem_journal.tail++;
|
|
bx_debugger.UCmem_journal.size++;
|
|
bx_devices.vga->mem_write(addr, value);
|
|
bx_dbg_ucmem_report(addr, 1, BX_WRITE, value);
|
|
} else {
|
|
bx_devices.vga->mem_write(addr, value);
|
|
}
|
|
}
|
|
else {
|
|
if (bx_debugger.UCmem_journal.size == 0) {
|
|
fprintf(stderr, "Error: ucmem_write: journal empty.\n");
|
|
return;
|
|
}
|
|
head = bx_debugger.UCmem_journal.head;
|
|
|
|
if ((bx_debugger.UCmem_journal.element[head].op != BX_WRITE) ||
|
|
(bx_debugger.UCmem_journal.element[head].len != 1) ||
|
|
(bx_debugger.UCmem_journal.element[head].addr != addr) ||
|
|
(bx_debugger.UCmem_journal.element[head].value != value) ) {
|
|
fprintf(stderr, "Error: ucmem_write: out of sync with journal.\n");
|
|
fprintf(stderr, "Error: master: op=%1s len=%u addr=0x%x val=0x%x\n",
|
|
(bx_debugger.UCmem_journal.element[head].op==BX_WRITE) ? "W" : "R",
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].len,
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].addr,
|
|
(unsigned) bx_debugger.UCmem_journal.element[head].value);
|
|
fprintf(stderr, "Error: slave: op=W len=%u addr=0x%x val=0x%x\n",
|
|
(unsigned) 1, (unsigned) addr, (unsigned) value);
|
|
return;
|
|
}
|
|
// slave UCmem op in sync with journaled master op, delete this entry
|
|
bx_debugger.UCmem_journal.head++;
|
|
bx_debugger.UCmem_journal.size--;
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_async_pin_request(unsigned what, Boolean val)
|
|
{
|
|
// Request from IO devices for change in pin external to CPU.
|
|
// This is pended until CPU ack's with bx_dbg_async_pin_ack().
|
|
|
|
if (bx_debugger.master_slave_mode != BX_DBG_MASTER_MODE) {
|
|
fprintf(stderr, "Error: dbg_async_pin_request not in master mode.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
switch (what) {
|
|
case BX_DBG_ASYNC_PENDING_A20:
|
|
// Q pending status
|
|
bx_guard.async_changes_pending.which |= BX_DBG_ASYNC_PENDING_A20;
|
|
bx_guard.async_changes_pending.a20 = val;
|
|
return;
|
|
break;
|
|
|
|
case BX_DBG_ASYNC_PENDING_RESET:
|
|
case BX_DBG_ASYNC_PENDING_NMI:
|
|
default:
|
|
fprintf(stderr, "Error: set_async_pin: unhandled case.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
bx_dbg_async_pin_ack(unsigned what, Boolean val)
|
|
{
|
|
// Acknowledgement from master simulator for pending change in pin
|
|
// external to CPU.
|
|
|
|
if (bx_debugger.master_slave_mode != BX_DBG_MASTER_MODE) {
|
|
fprintf(stderr, "Error: dbg_async_pin_ack: not master mode.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
switch (what) {
|
|
case BX_DBG_ASYNC_PENDING_A20:
|
|
// get rid of pending status
|
|
bx_guard.async_changes_pending.which &= ~BX_DBG_ASYNC_PENDING_A20;
|
|
// notify pc_system of change
|
|
bx_pc_system.set_enable_a20(val);
|
|
if (bx_dbg_callback[bx_debugger.master].set_A20)
|
|
bx_dbg_callback[bx_debugger.master].set_A20(val);
|
|
bx_dbg_journal_a20_event(val);
|
|
return;
|
|
break;
|
|
|
|
case BX_DBG_ASYNC_PENDING_RESET:
|
|
case BX_DBG_ASYNC_PENDING_NMI:
|
|
default:
|
|
fprintf(stderr, "Error: set_async_pin: unhandled case.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
}
|
|
|
|
Bit32u
|
|
bx_dbg_inp(Bit16u addr, unsigned len)
|
|
{
|
|
Bit32u value;
|
|
unsigned tail, head;
|
|
|
|
if ( bx_debugger.master_slave_mode == BX_DBG_MASTER_MODE ) {
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (bx_debugger.IO_journal.size >= BX_DBG_IO_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_inp: journal full.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
if (bx_debugger.IO_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.IO_journal.head = 0;
|
|
tail = bx_debugger.IO_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.IO_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_IO_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_inp: journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
value = bx_pc_system.inp(addr, len);
|
|
bx_debugger.IO_journal.element[tail].op = BX_READ;
|
|
bx_debugger.IO_journal.element[tail].len = (Bit8u) len;
|
|
bx_debugger.IO_journal.element[tail].addr = addr;
|
|
bx_debugger.IO_journal.element[tail].value = value;
|
|
if (bx_debugger.IO_journal.size)
|
|
bx_debugger.IO_journal.tail++;
|
|
bx_debugger.IO_journal.size++;
|
|
//fprintf(stderr, "MASTER IN: head:%u tail%u size:%u\n",
|
|
// bx_debugger.IO_journal.head,
|
|
// bx_debugger.IO_journal.tail,
|
|
// bx_debugger.IO_journal.size);
|
|
return(value);
|
|
} else {
|
|
value = bx_pc_system.inp(addr, len);
|
|
return(value);
|
|
}
|
|
}
|
|
else {
|
|
if (bx_debugger.IO_journal.size == 0) {
|
|
fprintf(stderr, "Error: dbg_inp: journal empty.\n");
|
|
return(0xffffffff);
|
|
}
|
|
head = bx_debugger.IO_journal.head;
|
|
value = bx_debugger.IO_journal.element[head].value;
|
|
|
|
if ((bx_debugger.IO_journal.element[head].op != BX_READ) ||
|
|
(bx_debugger.IO_journal.element[head].len != len) ||
|
|
(bx_debugger.IO_journal.element[head].addr != addr) ) {
|
|
fprintf(stderr, "Error: dbg_inp: out of sync with journal.\n");
|
|
fprintf(stderr, "Error: master: op=%3s len=%u addr=0x%x\n",
|
|
(bx_debugger.IO_journal.element[head].op==BX_WRITE) ? "OUT" : "IN",
|
|
(unsigned) bx_debugger.IO_journal.element[head].len,
|
|
(unsigned) bx_debugger.IO_journal.element[head].addr);
|
|
fprintf(stderr, "Error: slave: op=OUT len=%u addr=0x%x\n",
|
|
(unsigned) len, (unsigned) addr);
|
|
return(0xffffffff);
|
|
}
|
|
// slave IO op in sync with journaled master op, delete this entry
|
|
bx_debugger.IO_journal.head++;
|
|
bx_debugger.IO_journal.size--;
|
|
// fprintf(stderr, "SLAVE IN: head:%u tail%u size:%u\n",
|
|
// bx_debugger.IO_journal.head,
|
|
// bx_debugger.IO_journal.tail,
|
|
// bx_debugger.IO_journal.size);
|
|
return(value);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_outp(Bit16u addr, Bit32u value, unsigned len)
|
|
{
|
|
unsigned tail, head;
|
|
|
|
if ( bx_debugger.master_slave_mode == BX_DBG_MASTER_MODE ) {
|
|
if (!bx_debugger.fast_forward_mode) {
|
|
if (bx_debugger.IO_journal.size >= BX_DBG_IO_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_outp: IO journal full.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
if (bx_debugger.IO_journal.size == 0) {
|
|
// start off point head & tail at same element
|
|
bx_debugger.IO_journal.head = 0;
|
|
tail = bx_debugger.IO_journal.tail = 0;
|
|
}
|
|
else {
|
|
tail = bx_debugger.IO_journal.tail + 1;
|
|
}
|
|
if (tail >= BX_DBG_IO_JOURNAL_SIZE) {
|
|
fprintf(stderr, "dbg_outp: IO journal wrapped.\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
bx_debugger.IO_journal.element[tail].op = BX_WRITE;
|
|
bx_debugger.IO_journal.element[tail].len = (Bit8u) len;
|
|
bx_debugger.IO_journal.element[tail].addr = addr;
|
|
bx_debugger.IO_journal.element[tail].value = value;
|
|
if (bx_debugger.IO_journal.size)
|
|
bx_debugger.IO_journal.tail++;
|
|
bx_debugger.IO_journal.size++;
|
|
bx_pc_system.outp(addr, value, len);
|
|
if (doit)
|
|
fprintf(stderr, "master: IO journal size now %u\n", bx_debugger.IO_journal.size);
|
|
} else {
|
|
bx_pc_system.outp(addr, value, len);
|
|
}
|
|
}
|
|
else {
|
|
if (bx_debugger.IO_journal.size == 0) {
|
|
fprintf(stderr, "Error: dbg_outp: journal empty.\n");
|
|
return;
|
|
}
|
|
head = bx_debugger.IO_journal.head;
|
|
|
|
if ((bx_debugger.IO_journal.element[head].op != BX_WRITE) ||
|
|
(bx_debugger.IO_journal.element[head].len != len) ||
|
|
(bx_debugger.IO_journal.element[head].addr != addr) ||
|
|
(bx_debugger.IO_journal.element[head].value != value) ) {
|
|
fprintf(stderr, "Error: dbg_outp: out of sync with journal.\n");
|
|
fprintf(stderr, "Error: master: op=%3s len=%u addr=0x%x val=0x%x\n",
|
|
(bx_debugger.IO_journal.element[head].op==BX_WRITE) ? "OUT" : "IN",
|
|
(unsigned) bx_debugger.IO_journal.element[head].len,
|
|
(unsigned) bx_debugger.IO_journal.element[head].addr,
|
|
(unsigned) bx_debugger.IO_journal.element[head].value);
|
|
fprintf(stderr, "Error: slave: op=OUT len=%u addr=0x%x val=0x%x\n",
|
|
(unsigned) len, (unsigned) addr, (unsigned) value);
|
|
return;
|
|
}
|
|
// slave IO op in sync with journaled master op, delete this entry
|
|
bx_debugger.IO_journal.head++;
|
|
bx_debugger.IO_journal.size--;
|
|
if (doit)
|
|
fprintf(stderr, "slave: IO journal size now %u\n", bx_debugger.IO_journal.size);
|
|
}
|
|
}
|
|
|
|
void
|
|
bx_dbg_raise_HLDA(void)
|
|
{
|
|
fprintf(stderr, "dbg_HLDA called\n");
|
|
bx_dbg_exit(0);
|
|
}
|
|
|
|
Bit8u
|
|
bx_dbg_IAC(void)
|
|
{
|
|
// Convience routine. bochs skips this, and calls the PIC code
|
|
// directly. This is for other simulators to interface to the
|
|
// the PIC code.
|
|
unsigned iac;
|
|
|
|
iac = bx_devices.pic->IAC();
|
|
return(iac);
|
|
}
|
|
|
|
void
|
|
bx_dbg_set_INTR(Boolean b)
|
|
{
|
|
if ( bx_debugger.master_slave_mode == BX_DBG_SLAVE_MODE ) {
|
|
fprintf(stderr, "Error: set_INTR in slave mode.\n");
|
|
bx_dbg_exit(1);
|
|
}
|
|
|
|
bx_pc_system.INTR = b;
|
|
bx_dbg_callback[bx_debugger.master].set_INTR(b);
|
|
}
|
|
|
|
#endif // #if (BX_NUM_SIMULATORS >= 2)
|
|
|
|
// BW added. return non zero to cause a stop
|
|
#if BX_DEBUGGER
|
|
static int symbol_level;
|
|
|
|
int bx_dbg_symbolic_output(void) {
|
|
|
|
/* modes & address spaces */
|
|
if(BX_CPU_THIS_PTR cr0.pe != last_pe) {
|
|
fprintf(stderr,"%10lld: Switched %s protected mode\n",
|
|
bx_pc_system.time_ticks(),
|
|
last_pe ? "from" : "to");
|
|
last_pe = !last_pe;
|
|
}
|
|
|
|
if(last_vm != BX_CPU_THIS_PTR eflags.vm) {
|
|
fprintf(stderr,"%10lld: %s V86 mode\n",
|
|
bx_pc_system.time_ticks(),
|
|
last_vm ? "Exited" : "Entered");
|
|
last_vm = !last_vm;
|
|
}
|
|
|
|
if(last_cr3 != BX_CPU_THIS_PTR cr3)
|
|
fprintf(stderr,"\n%10lld: Address space switched since last trigger. CR3: 0x%08x\n",
|
|
bx_pc_system.time_ticks(), BX_CPU_THIS_PTR cr3);
|
|
|
|
/* interrupts */
|
|
if (dbg_show_mask & 0x40) {
|
|
if(BX_CPU_THIS_PTR show_flag & 0x4) {
|
|
fprintf(stderr,"%10lld: softint %04x:%08x %08x\n",
|
|
bx_pc_system.time_ticks(),
|
|
bx_guard_found[BX_SIM_ID].cs,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr);
|
|
}
|
|
if((BX_CPU_THIS_PTR show_flag & 0x10) && !(BX_CPU_THIS_PTR show_flag & 0x4)) {
|
|
fprintf(stderr,"\n%10lld: exception (not softint) %04x:%08x %08x\n",
|
|
bx_pc_system.time_ticks(),
|
|
bx_guard_found[BX_SIM_ID].cs,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr);
|
|
}
|
|
if(BX_CPU_THIS_PTR show_flag & 0x8) {
|
|
fprintf(stderr,"%10lld: iret %04x:%08x %08x (from %08x)\n\n",
|
|
bx_pc_system.time_ticks(),
|
|
bx_guard_found[BX_SIM_ID].cs,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr,
|
|
BX_CPU_THIS_PTR show_eip);
|
|
}
|
|
}
|
|
|
|
/* calls */
|
|
if(BX_CPU_THIS_PTR show_flag & 0x1) {
|
|
Bit32u phy = 0;
|
|
Boolean valid;
|
|
|
|
if (dbg_show_mask & 0x20) {
|
|
BX_CPU_THIS_PTR dbg_xlate_linear2phy(bx_guard_found[BX_SIM_ID].laddr,
|
|
&phy, &valid);
|
|
|
|
fprintf(stderr,"%10lld:%*s call %04x:%08x 0x%08x (%08x) %s",
|
|
bx_pc_system.time_ticks(),
|
|
symbol_level+1," ",
|
|
bx_guard_found[BX_SIM_ID].cs,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr,
|
|
phy,
|
|
bx_dbg_symbolic_address(BX_CPU_THIS_PTR cr3,
|
|
bx_guard_found[BX_SIM_ID].eip,
|
|
bx_guard_found[BX_SIM_ID].laddr - bx_guard_found[BX_SIM_ID].eip) );
|
|
if(!valid)
|
|
fprintf(stderr," phys not valid");
|
|
fprintf(stderr,"\n");
|
|
}
|
|
|
|
symbol_level++;
|
|
if(symbol_level > 40)
|
|
symbol_level = 10;
|
|
}
|
|
|
|
if (BX_CPU_THIS_PTR show_flag & 0x2) {
|
|
symbol_level--;
|
|
if(symbol_level < 0)
|
|
symbol_level = 0;
|
|
}
|
|
|
|
BX_CPU_THIS_PTR show_flag = 0;
|
|
last_cr3 = BX_CPU_THIS_PTR cr3;
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
// BW added to dump page table
|
|
|
|
static void dbg_lin2phys(Bit32u laddress, Bit32u *phy, Boolean *valid, Bit32u *tlb_phy, Boolean *tlb_valid) {
|
|
Bit32u lpf, ppf, poffset, TLB_index, paddress;
|
|
Bit32u pde, pde_addr;
|
|
Bit32u pte, pte_addr;
|
|
|
|
*tlb_valid = 0;
|
|
|
|
if (BX_CPU_THIS_PTR cr0.pg == 0) {
|
|
*phy = laddress;
|
|
*valid = 1;
|
|
return;
|
|
}
|
|
|
|
lpf = laddress & 0xfffff000; // linear page frame
|
|
poffset = laddress & 0x00000fff; // physical offset
|
|
TLB_index = BX_TLB_INDEX_OF(lpf);
|
|
|
|
// see if page is in the TLB first
|
|
if (BX_CPU_THIS_PTR TLB.entry[TLB_index].lpf == lpf) {
|
|
*tlb_phy = BX_CPU_THIS_PTR TLB.entry[TLB_index].ppf | poffset;
|
|
*tlb_valid = 1;
|
|
}
|
|
|
|
// Get page dir entry
|
|
pde_addr = (BX_CPU_THIS_PTR cr3 & 0xfffff000) |
|
|
((laddress & 0xffc00000) >> 20);
|
|
BX_MEM.read_physical(pde_addr, 4, &pde);
|
|
if ( !(pde & 0x01) ) {
|
|
// Page Directory Entry NOT present
|
|
goto page_fault;
|
|
}
|
|
|
|
// Get page table entry
|
|
pte_addr = (pde & 0xfffff000) |
|
|
((laddress & 0x003ff000) >> 10);
|
|
BX_MEM.read_physical(pte_addr, 4, &pte);
|
|
if ( !(pte & 0x01) ) {
|
|
// Page Table Entry NOT present
|
|
goto page_fault;
|
|
}
|
|
|
|
ppf = pte & 0xfffff000;
|
|
paddress = ppf | poffset;
|
|
|
|
*phy = paddress;
|
|
*valid = 1;
|
|
return;
|
|
|
|
page_fault:
|
|
*phy = 0;
|
|
*valid = 0;
|
|
return;
|
|
}
|
|
|
|
static void dbg_dump_table(Boolean all) {
|
|
Bit32u lina;
|
|
Bit32u phy, tlb_phy;
|
|
Boolean valid, tlb_valid;
|
|
|
|
Bit32u start_lina, start_phy; // start of a valid translation interval
|
|
|
|
if (BX_CPU_THIS_PTR cr0.pg == 0) {
|
|
printf("paging off\n");
|
|
return;
|
|
}
|
|
|
|
printf("cr3: %08x \n", BX_CPU_THIS_PTR cr3);
|
|
|
|
lina = 0;
|
|
start_lina = 1;
|
|
start_phy = 2;
|
|
while(1) {
|
|
dbg_lin2phys(lina, &phy, &valid, &tlb_phy, &tlb_valid);
|
|
if(valid) {
|
|
if( (lina - start_lina != phy - start_phy) || tlb_valid) {
|
|
if(all && (start_lina != 1))
|
|
printf("%08x - %08x: %8x - %8x\n",
|
|
start_lina, lina - 0x1000, start_phy, start_phy + (lina-0x1000-start_lina));
|
|
start_lina = lina;
|
|
start_phy = phy;
|
|
}
|
|
if(tlb_valid) {
|
|
if(all && tlb_phy == phy)
|
|
printf("%08x : %8x (%8x) in TLB\n",
|
|
lina, phy, tlb_phy);
|
|
if(tlb_phy != phy)
|
|
printf("%08x : %8x (%8x) in TLB Phys differs!!!\n",
|
|
lina, phy, tlb_phy);
|
|
start_lina = 1;
|
|
start_phy = 2;
|
|
}
|
|
} else {
|
|
if(all && start_lina != 1)
|
|
printf("%08x - %08x: %8x - %8x\n",
|
|
start_lina, lina - 0x1000, start_phy, start_phy + (lina-0x1000-start_lina));
|
|
if(tlb_valid) {
|
|
printf("%08x : (%8x) in TLB Table not valid!!!\n",
|
|
lina, tlb_phy);
|
|
}
|
|
start_lina = 1;
|
|
start_phy = 2;
|
|
}
|
|
|
|
if(lina == 0xfffff000)
|
|
break;
|
|
lina += 0x1000;
|
|
}
|
|
if(all & start_lina != 1)
|
|
printf("%08x - %08x: %8x - %8x\n",
|
|
start_lina, 0xfffff000, start_phy, start_phy + (0xfffff000-start_lina));
|
|
}
|
|
|
|
|
|
|