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Diffstat (limited to 'disas/arm-a64.cc')
-rw-r--r-- | disas/arm-a64.cc | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/disas/arm-a64.cc b/disas/arm-a64.cc deleted file mode 100644 index a1402a2..0000000 --- a/disas/arm-a64.cc +++ /dev/null @@ -1,101 +0,0 @@ -/* - * ARM A64 disassembly output wrapper to libvixl - * Copyright (c) 2013 Linaro Limited - * Written by Claudio Fontana - * - * 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 "qemu/osdep.h" -#include "disas/dis-asm.h" - -#include "vixl/a64/disasm-a64.h" - -using namespace vixl; - -static Decoder *vixl_decoder = NULL; -static Disassembler *vixl_disasm = NULL; - -/* We don't use libvixl's PrintDisassembler because its output - * is a little unhelpful (trailing newlines, for example). - * Instead we use our own very similar variant so we have - * control over the format. - */ -class QEMUDisassembler : public Disassembler { -public: - QEMUDisassembler() : printf_(NULL), stream_(NULL) { } - ~QEMUDisassembler() { } - - void SetStream(FILE *stream) { - stream_ = stream; - } - - void SetPrintf(fprintf_function printf_fn) { - printf_ = printf_fn; - } - -protected: - virtual void ProcessOutput(const Instruction *instr) { - printf_(stream_, "%08" PRIx32 " %s", - instr->InstructionBits(), GetOutput()); - } - -private: - fprintf_function printf_; - FILE *stream_; -}; - -static int vixl_is_initialized(void) -{ - return vixl_decoder != NULL; -} - -static void vixl_init() { - vixl_decoder = new Decoder(); - vixl_disasm = new QEMUDisassembler(); - vixl_decoder->AppendVisitor(vixl_disasm); -} - -#define INSN_SIZE 4 - -/* Disassemble ARM A64 instruction. This is our only entry - * point from QEMU's C code. - */ -int print_insn_arm_a64(uint64_t addr, disassemble_info *info) -{ - uint8_t bytes[INSN_SIZE]; - uint32_t instrval; - const Instruction *instr; - int status; - - status = info->read_memory_func(addr, bytes, INSN_SIZE, info); - if (status != 0) { - info->memory_error_func(status, addr, info); - return -1; - } - - if (!vixl_is_initialized()) { - vixl_init(); - } - - ((QEMUDisassembler *)vixl_disasm)->SetPrintf(info->fprintf_func); - ((QEMUDisassembler *)vixl_disasm)->SetStream(info->stream); - - instrval = bytes[0] | bytes[1] << 8 | bytes[2] << 16 | bytes[3] << 24; - instr = reinterpret_cast<const Instruction *>(&instrval); - vixl_disasm->MapCodeAddress(addr, instr); - vixl_decoder->Decode(instr); - - return INSN_SIZE; -} |