diff options
| -rw-r--r-- | dis-asm.h | 1 | ||||
| -rw-r--r-- | disas.c | 4 | ||||
| -rw-r--r-- | tci-dis.c | 59 |
3 files changed, 63 insertions, 1 deletions
@@ -365,6 +365,7 @@ typedef struct disassemble_info { target address. Return number of bytes processed. */ typedef int (*disassembler_ftype) (bfd_vma, disassemble_info *); +int print_insn_tci(bfd_vma, disassemble_info*); int print_insn_big_mips (bfd_vma, disassemble_info*); int print_insn_little_mips (bfd_vma, disassemble_info*); int print_insn_i386 (bfd_vma, disassemble_info*); @@ -273,7 +273,9 @@ void disas(FILE *out, void *code, unsigned long size) #else disasm_info.endian = BFD_ENDIAN_LITTLE; #endif -#if defined(__i386__) +#if defined(CONFIG_TCG_INTERPRETER) + print_insn = print_insn_tci; +#elif defined(__i386__) disasm_info.mach = bfd_mach_i386_i386; print_insn = print_insn_i386; #elif defined(__x86_64__) diff --git a/tci-dis.c b/tci-dis.c new file mode 100644 index 0000000000..10c411be8c --- /dev/null +++ b/tci-dis.c @@ -0,0 +1,59 @@ +/* + * Tiny Code Interpreter for QEMU - disassembler + * + * Copyright (c) 2011 Stefan Weil + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include "dis-asm.h" +#include "tcg/tcg.h" + +/* Disassemble TCI bytecode. */ +int print_insn_tci(bfd_vma addr, disassemble_info *info) +{ + int length; + uint8_t byte; + int status; + TCGOpcode op; + + status = info->read_memory_func(addr, &byte, 1, info); + if (status != 0) { + info->memory_error_func(status, addr, info); + return -1; + } + op = byte; + + addr++; + status = info->read_memory_func(addr, &byte, 1, info); + if (status != 0) { + info->memory_error_func(status, addr, info); + return -1; + } + length = byte; + + if (op >= tcg_op_defs_max) { + info->fprintf_func(info->stream, "illegal opcode %d", op); + } else { + const TCGOpDef *def = &tcg_op_defs[op]; + int nb_oargs = def->nb_oargs; + int nb_iargs = def->nb_iargs; + int nb_cargs = def->nb_cargs; + /* TODO: Improve disassembler output. */ + info->fprintf_func(info->stream, "%s\to=%d i=%d c=%d", + def->name, nb_oargs, nb_iargs, nb_cargs); + } + + return length; +} |