diff options
| -rw-r--r-- | disas/hexagon.c | 65 | ||||
| -rw-r--r-- | disas/meson.build | 1 | ||||
| -rw-r--r-- | include/disas/dis-asm.h | 1 |
3 files changed, 67 insertions, 0 deletions
diff --git a/disas/hexagon.c b/disas/hexagon.c new file mode 100644 index 0000000000..3c24e2a94a --- /dev/null +++ b/disas/hexagon.c @@ -0,0 +1,65 @@ +/* + * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. + * + * 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/>. + */ + +/* + * QEMU Hexagon Disassembler + */ + +#include "qemu/osdep.h" +#include "disas/dis-asm.h" +#include "target/hexagon/cpu_bits.h" + +/* + * We will disassemble a packet with up to 4 instructions, so we need + * a hefty size buffer. + */ +#define PACKET_BUFFER_LEN 1028 + +int print_insn_hexagon(bfd_vma memaddr, struct disassemble_info *info) +{ + uint32_t words[PACKET_WORDS_MAX]; + bool found_end = false; + GString *buf = g_string_sized_new(PACKET_BUFFER_LEN); + int i, len; + + for (i = 0; i < PACKET_WORDS_MAX && !found_end; i++) { + int status = (*info->read_memory_func)(memaddr + i * sizeof(uint32_t), + (bfd_byte *)&words[i], + sizeof(uint32_t), info); + if (status) { + if (i > 0) { + break; + } + (*info->memory_error_func)(status, memaddr, info); + return status; + } + if (is_packet_end(words[i])) { + found_end = true; + } + } + + if (!found_end) { + (*info->fprintf_func)(info->stream, "<invalid>"); + return PACKET_WORDS_MAX * sizeof(uint32_t); + } + + len = disassemble_hexagon(words, i, memaddr, buf); + (*info->fprintf_func)(info->stream, "%s", buf->str); + g_string_free(buf, true); + + return len; +} diff --git a/disas/meson.build b/disas/meson.build index da341a511e..4c8da01877 100644 --- a/disas/meson.build +++ b/disas/meson.build @@ -6,6 +6,7 @@ common_ss.add(when: 'CONFIG_ARM_A64_DIS', if_true: files('arm-a64.cc')) common_ss.add_all(when: 'CONFIG_ARM_A64_DIS', if_true: libvixl_ss) common_ss.add(when: 'CONFIG_ARM_DIS', if_true: files('arm.c')) common_ss.add(when: 'CONFIG_CRIS_DIS', if_true: files('cris.c')) +common_ss.add(when: 'CONFIG_HEXAGON_DIS', if_true: files('hexagon.c')) common_ss.add(when: 'CONFIG_HPPA_DIS', if_true: files('hppa.c')) common_ss.add(when: 'CONFIG_I386_DIS', if_true: files('i386.c')) common_ss.add(when: 'CONFIG_LM32_DIS', if_true: files('lm32.c')) diff --git a/include/disas/dis-asm.h b/include/disas/dis-asm.h index d1133a4e04..13fa1edd41 100644 --- a/include/disas/dis-asm.h +++ b/include/disas/dis-asm.h @@ -459,6 +459,7 @@ int print_insn_xtensa (bfd_vma, disassemble_info*); int print_insn_riscv32 (bfd_vma, disassemble_info*); int print_insn_riscv64 (bfd_vma, disassemble_info*); int print_insn_rx(bfd_vma, disassemble_info *); +int print_insn_hexagon(bfd_vma, disassemble_info *); #ifdef CONFIG_CAPSTONE bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size); |