| Message ID | 1524699938-6764-7-git-send-email-mjc@sifive.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Apr 25, 2018 at 4:53 PM Michael Clark <mjc@sifive.com> wrote: > This was added to help debug issues using -d in_asm. It is > useful to see the instruction bytes, as one can detect if > one is trying to execute ASCII or device-tree magic. > Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> > Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> > Signed-off-by: Michael Clark <mjc@sifive.com> > Signed-off-by: Palmer Dabbelt <palmer@sifive.com> > Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Alistair > --- > disas/riscv.c | 39 ++++++++++++++++++++------------------- > 1 file changed, 20 insertions(+), 19 deletions(-) > diff --git a/disas/riscv.c b/disas/riscv.c > index 74ad16e..2cecf0d 100644 > --- a/disas/riscv.c > +++ b/disas/riscv.c > @@ -2769,25 +2769,6 @@ static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec) > char tmp[64]; > const char *fmt; > - if (dec->op == rv_op_illegal) { > - size_t len = inst_length(dec->inst); > - switch (len) { > - case 2: > - snprintf(buf, buflen, "(0x%04" PRIx64 ")", dec->inst); > - break; > - case 4: > - snprintf(buf, buflen, "(0x%08" PRIx64 ")", dec->inst); > - break; > - case 6: > - snprintf(buf, buflen, "(0x%012" PRIx64 ")", dec->inst); > - break; > - default: > - snprintf(buf, buflen, "(0x%016" PRIx64 ")", dec->inst); > - break; > - } > - return; > - } > - > fmt = opcode_data[dec->op].format; > while (*fmt) { > switch (*fmt) { > @@ -3004,6 +2985,11 @@ disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst) > format_inst(buf, buflen, 16, &dec); > } > +#define INST_FMT_2 "%04" PRIx64 " " > +#define INST_FMT_4 "%08" PRIx64 " " > +#define INST_FMT_6 "%012" PRIx64 " " > +#define INST_FMT_8 "%016" PRIx64 " " > + > static int > print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa) > { > @@ -3031,6 +3017,21 @@ print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa) > } > } > + switch (len) { > + case 2: > + (*info->fprintf_func)(info->stream, INST_FMT_2, inst); > + break; > + case 4: > + (*info->fprintf_func)(info->stream, INST_FMT_4, inst); > + break; > + case 6: > + (*info->fprintf_func)(info->stream, INST_FMT_6, inst); > + break; > + default: > + (*info->fprintf_func)(info->stream, INST_FMT_8, inst); > + break; > + } > + > disasm_inst(buf, sizeof(buf), isa, memaddr, inst); > (*info->fprintf_func)(info->stream, "%s", buf); > -- > 2.7.0
diff --git a/disas/riscv.c b/disas/riscv.c index 74ad16e..2cecf0d 100644 --- a/disas/riscv.c +++ b/disas/riscv.c @@ -2769,25 +2769,6 @@ static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec) char tmp[64]; const char *fmt; - if (dec->op == rv_op_illegal) { - size_t len = inst_length(dec->inst); - switch (len) { - case 2: - snprintf(buf, buflen, "(0x%04" PRIx64 ")", dec->inst); - break; - case 4: - snprintf(buf, buflen, "(0x%08" PRIx64 ")", dec->inst); - break; - case 6: - snprintf(buf, buflen, "(0x%012" PRIx64 ")", dec->inst); - break; - default: - snprintf(buf, buflen, "(0x%016" PRIx64 ")", dec->inst); - break; - } - return; - } - fmt = opcode_data[dec->op].format; while (*fmt) { switch (*fmt) { @@ -3004,6 +2985,11 @@ disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst) format_inst(buf, buflen, 16, &dec); } +#define INST_FMT_2 "%04" PRIx64 " " +#define INST_FMT_4 "%08" PRIx64 " " +#define INST_FMT_6 "%012" PRIx64 " " +#define INST_FMT_8 "%016" PRIx64 " " + static int print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa) { @@ -3031,6 +3017,21 @@ print_insn_riscv(bfd_vma memaddr, struct disassemble_info *info, rv_isa isa) } } + switch (len) { + case 2: + (*info->fprintf_func)(info->stream, INST_FMT_2, inst); + break; + case 4: + (*info->fprintf_func)(info->stream, INST_FMT_4, inst); + break; + case 6: + (*info->fprintf_func)(info->stream, INST_FMT_6, inst); + break; + default: + (*info->fprintf_func)(info->stream, INST_FMT_8, inst); + break; + } + disasm_inst(buf, sizeof(buf), isa, memaddr, inst); (*info->fprintf_func)(info->stream, "%s", buf);