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authorNelson Chu <nelson@rivosinc.com>2025-07-04 13:42:38 +0800
committerNelson Chu <nelson@rivosinc.com>2025-07-08 17:15:50 +0800
commit9be7e79a9672391820e41e31d372531671a3eded (patch)
treebc5de9edd2861407d9c0aa334982b4d6ea208598
parente4364b988127763e32a448123c7313b210d37045 (diff)
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RISC-V: Fixed dis-assembler to set correct xlen from mapping symbol
-rw-r--r--gas/testsuite/gas/riscv/option-arch-dis.d2
-rw-r--r--gas/testsuite/gas/riscv/option-arch.s4
-rw-r--r--gas/testsuite/gas/riscv/option-norvc.d4
-rw-r--r--opcodes/riscv-dis.c8
4 files changed, 10 insertions, 8 deletions
diff --git a/gas/testsuite/gas/riscv/option-arch-dis.d b/gas/testsuite/gas/riscv/option-arch-dis.d
index 6768fe7..e4b603b 100644
--- a/gas/testsuite/gas/riscv/option-arch-dis.d
+++ b/gas/testsuite/gas/riscv/option-arch-dis.d
@@ -22,5 +22,5 @@ Disassembly of section .text:
[ ]+2:[ ]+00b50533[ ]+add[ ]+a0,a0,a1
[ ]+6:[ ]+00302573[ ]+frcsr[ ]+a0
[ ]+a:[ ]+952e[ ]+add[ ]+a0,a0,a1
-[ ]+c:[ ]+c8002573[ ]+.insn[ ]+4, 0xc8002573
+[ ]+c:[ ]+c8002573[ ]+rdcycleh[ ]+a0
#...
diff --git a/gas/testsuite/gas/riscv/option-arch.s b/gas/testsuite/gas/riscv/option-arch.s
index 4d2d261..a37659f 100644
--- a/gas/testsuite/gas/riscv/option-arch.s
+++ b/gas/testsuite/gas/riscv/option-arch.s
@@ -7,5 +7,5 @@ frcsr a0
.option pop
.option arch, +m3p0, +d3p0, +xvendor32x3p0
add a0, a0, a1 # func-level, rv64i_m3p0_d3p0_c_xvendor32x3p0
-.option arch, rv32i2p1c2p0 # FIXME: maybe we should adjust xlen in dis-assembler according to mappin symbols?
-rdcycleh a0 # func-level, rv32i2p1_c2p0
+.option arch, rv32i2p1c2p0
+rdcycleh a0 # func-level, rv32i2p1_c2p0, won't affcet file-level attribute
diff --git a/gas/testsuite/gas/riscv/option-norvc.d b/gas/testsuite/gas/riscv/option-norvc.d
index 107e3f9..c2647d3 100644
--- a/gas/testsuite/gas/riscv/option-norvc.d
+++ b/gas/testsuite/gas/riscv/option-norvc.d
@@ -27,13 +27,13 @@ Disassembly of section .text:
0+000 <.text>:
[ ]+[0-9a-f]+:[ ]+0001[ ]+c\.addi[ ]+zero,0
[ ]+[0-9a-f]+:[ ]+00000013[ ]+addi[ ]+zero,zero,0
-[ ]+[0-9a-f]+:[ ]+6108[ ]+c\.ld[ ]+a0,0\(a0\)
+[ ]+[0-9a-f]+:[ ]+6108[ ]+c\.flw[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+00052507[ ]+flw[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+2108[ ]+c\.fld[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+00053507[ ]+fld[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+0001[ ]+c\.addi[ ]+zero,0
[ ]+[0-9a-f]+:[ ]+00000013[ ]+addi[ ]+zero,zero,0
-[ ]+[0-9a-f]+:[ ]+6108[ ]+c\.ld[ ]+a0,0\(a0\)
+[ ]+[0-9a-f]+:[ ]+6108[ ]+c\.flw[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+00052507[ ]+flw[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+2108[ ]+c\.fld[ ]+fa0,0\(a0\)
[ ]+[0-9a-f]+:[ ]+00053507[ ]+fld[ ]+fa0,0\(a0\)
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index 9c3158a..f6af9c4 100644
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -345,7 +345,7 @@ print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info
case 'j':
if (((l & MASK_C_ADDI) == MATCH_C_ADDI) && rd != 0)
maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 0);
- if (info->mach == bfd_mach_riscv64
+ if (pd->xlen == 64
&& ((l & MASK_C_ADDIW) == MATCH_C_ADDIW) && rd != 0)
maybe_print_address (pd, rd, EXTRACT_CITYPE_IMM (l), 1);
print (info->stream, dis_style_immediate, "%d",
@@ -557,7 +557,7 @@ print_insn_args (const char *oparg, insn_t l, bfd_vma pc, disassemble_info *info
if (((l & MASK_ADDI) == MATCH_ADDI && rs1 != 0)
|| (l & MASK_JALR) == MATCH_JALR)
maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 0);
- if (info->mach == bfd_mach_riscv64
+ if (pd->xlen == 64
&& ((l & MASK_ADDIW) == MATCH_ADDIW) && rs1 != 0)
maybe_print_address (pd, rs1, EXTRACT_ITYPE_IMM (l), 1);
print (info->stream, dis_style_immediate, "%d",
@@ -983,7 +983,9 @@ riscv_disassemble_insn (bfd_vma memaddr,
if (op != NULL)
{
/* If XLEN is not known, get its value from the ELF class. */
- if (info->mach == bfd_mach_riscv64)
+ if (pd->xlen != 0)
+ ;
+ else if (info->mach == bfd_mach_riscv64)
pd->xlen = 64;
else if (info->mach == bfd_mach_riscv32)
pd->xlen = 32;