1e22d3c48SThomas Huth /*
2e22d3c48SThomas Huth * Functions related to disassembly from the monitor
3e22d3c48SThomas Huth *
4e22d3c48SThomas Huth * SPDX-License-Identifier: GPL-2.0-or-later
5e22d3c48SThomas Huth */
6e22d3c48SThomas Huth
7e22d3c48SThomas Huth #include "qemu/osdep.h"
8e22d3c48SThomas Huth #include "disas-internal.h"
9e22d3c48SThomas Huth #include "disas/disas.h"
10e22d3c48SThomas Huth #include "exec/memory.h"
11e22d3c48SThomas Huth #include "hw/core/cpu.h"
12e22d3c48SThomas Huth #include "monitor/monitor.h"
13e22d3c48SThomas Huth
14e22d3c48SThomas Huth static int
physical_read_memory(bfd_vma memaddr,bfd_byte * myaddr,int length,struct disassemble_info * info)15e22d3c48SThomas Huth physical_read_memory(bfd_vma memaddr, bfd_byte *myaddr, int length,
16e22d3c48SThomas Huth struct disassemble_info *info)
17e22d3c48SThomas Huth {
18e22d3c48SThomas Huth CPUDebug *s = container_of(info, CPUDebug, info);
19e22d3c48SThomas Huth MemTxResult res;
20e22d3c48SThomas Huth
21e22d3c48SThomas Huth res = address_space_read(s->cpu->as, memaddr, MEMTXATTRS_UNSPECIFIED,
22e22d3c48SThomas Huth myaddr, length);
23e22d3c48SThomas Huth return res == MEMTX_OK ? 0 : EIO;
24e22d3c48SThomas Huth }
25e22d3c48SThomas Huth
26e22d3c48SThomas Huth /* Disassembler for the monitor. */
monitor_disas(Monitor * mon,CPUState * cpu,uint64_t pc,int nb_insn,bool is_physical)27e22d3c48SThomas Huth void monitor_disas(Monitor *mon, CPUState *cpu, uint64_t pc,
28e22d3c48SThomas Huth int nb_insn, bool is_physical)
29e22d3c48SThomas Huth {
30e22d3c48SThomas Huth int count, i;
31e22d3c48SThomas Huth CPUDebug s;
32e22d3c48SThomas Huth g_autoptr(GString) ds = g_string_new("");
33e22d3c48SThomas Huth
34e22d3c48SThomas Huth disas_initialize_debug_target(&s, cpu);
35e22d3c48SThomas Huth s.info.fprintf_func = disas_gstring_printf;
36e22d3c48SThomas Huth s.info.stream = (FILE *)ds; /* abuse this slot */
37*13af3af1SRichard Henderson s.info.show_opcodes = true;
38e22d3c48SThomas Huth
39e22d3c48SThomas Huth if (is_physical) {
40e22d3c48SThomas Huth s.info.read_memory_func = physical_read_memory;
41e22d3c48SThomas Huth }
42e22d3c48SThomas Huth s.info.buffer_vma = pc;
43e22d3c48SThomas Huth
44e22d3c48SThomas Huth if (s.info.cap_arch >= 0 && cap_disas_monitor(&s.info, pc, nb_insn)) {
45e22d3c48SThomas Huth monitor_puts(mon, ds->str);
46e22d3c48SThomas Huth return;
47e22d3c48SThomas Huth }
48e22d3c48SThomas Huth
49e22d3c48SThomas Huth if (!s.info.print_insn) {
50e22d3c48SThomas Huth monitor_printf(mon, "0x%08" PRIx64
51e22d3c48SThomas Huth ": Asm output not supported on this arch\n", pc);
52e22d3c48SThomas Huth return;
53e22d3c48SThomas Huth }
54e22d3c48SThomas Huth
55e22d3c48SThomas Huth for (i = 0; i < nb_insn; i++) {
56e22d3c48SThomas Huth g_string_append_printf(ds, "0x%08" PRIx64 ": ", pc);
57e22d3c48SThomas Huth count = s.info.print_insn(pc, &s.info);
58e22d3c48SThomas Huth g_string_append_c(ds, '\n');
59e22d3c48SThomas Huth if (count < 0) {
60e22d3c48SThomas Huth break;
61e22d3c48SThomas Huth }
62e22d3c48SThomas Huth pc += count;
63e22d3c48SThomas Huth }
64e22d3c48SThomas Huth
65e22d3c48SThomas Huth monitor_puts(mon, ds->str);
66e22d3c48SThomas Huth }
67