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/*
* 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;
}
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