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https://gitlab.com/qemu-project/qemu
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improved monitor: type check, expression evaluator, memory dump, disassembly
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@703 c046a42c-6fe2-441c-8c8c-71466251a162
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40c3bac35a
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70
disas.c
70
disas.c
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/* General "disassemble this chunk" code. Used for debugging. */
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#include "config.h"
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#include "dis-asm.h"
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#include "disas.h"
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#include "elf.h"
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#include <errno.h>
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#include "cpu.h"
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#include "exec-all.h"
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#include "disas.h"
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/* Filled in by elfload.c. Simplistic, but will do for now. */
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unsigned int disas_num_syms;
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@ -219,3 +219,71 @@ const char *lookup_symbol(void *orig_addr)
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}
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return "";
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}
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#if !defined(CONFIG_USER_ONLY)
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static int monitor_disas_is_physical;
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static int
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monitor_read_memory (memaddr, myaddr, length, info)
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bfd_vma memaddr;
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bfd_byte *myaddr;
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int length;
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struct disassemble_info *info;
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{
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if (monitor_disas_is_physical) {
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cpu_physical_memory_rw(memaddr, myaddr, length, 0);
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} else {
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cpu_memory_rw_debug(cpu_single_env, memaddr,myaddr, length, 0);
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}
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return 0;
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}
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void monitor_disas(target_ulong pc, int nb_insn, int is_physical, int flags)
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{
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FILE *out;
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int count, i;
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struct disassemble_info disasm_info;
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int (*print_insn)(bfd_vma pc, disassemble_info *info);
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out = stdout;
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INIT_DISASSEMBLE_INFO(disasm_info, out, fprintf);
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monitor_disas_is_physical = is_physical;
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disasm_info.read_memory_func = monitor_read_memory;
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disasm_info.buffer_vma = pc;
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#ifdef TARGET_WORDS_BIGENDIAN
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disasm_info.endian = BFD_ENDIAN_BIG;
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#else
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disasm_info.endian = BFD_ENDIAN_LITTLE;
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#endif
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#if defined(TARGET_I386)
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if (!flags)
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disasm_info.mach = bfd_mach_i386_i386;
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else
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disasm_info.mach = bfd_mach_i386_i8086;
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print_insn = print_insn_i386;
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#elif defined(TARGET_ARM)
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print_insn = print_insn_arm;
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#elif defined(TARGET_SPARC)
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print_insn = print_insn_sparc;
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#elif defined(TARGET_PPC)
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print_insn = print_insn_ppc;
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#else
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fprintf(out, "Asm output not supported on this arch\n");
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return;
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#endif
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for(i = 0; i < nb_insn; i++) {
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fprintf(out, "0x%08lx: ", (unsigned long)pc);
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count = print_insn(pc, &disasm_info);
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fprintf(out, "\n");
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if (count < 0)
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break;
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pc += count;
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}
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}
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#endif
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1
disas.h
1
disas.h
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/* Disassemble this for me please... (debugging). */
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void disas(FILE *out, void *code, unsigned long size, int is_host, int flags);
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void monitor_disas(target_ulong pc, int nb_insn, int is_physical, int flags);
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/* Look up symbol for debugging purpose. Returns "" if unknown. */
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const char *lookup_symbol(void *orig_addr);
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