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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-08-19 06:38:21 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-08-19 07:01:20 -0700 |
| commit | 7e40d574be8b8bc01d3726b90556cff0081e9dd9 (patch) | |
| tree | 616c46809f70e57ca26b18743e8c1951ac5db857 | |
| parent | 8ddf46454aa981246f9611b1897f41fabd2a108d (diff) | |
| download | gdb-7e40d574be8b8bc01d3726b90556cff0081e9dd9.zip gdb-7e40d574be8b8bc01d3726b90556cff0081e9dd9.tar.gz gdb-7e40d574be8b8bc01d3726b90556cff0081e9dd9.tar.bz2 | |
x86: Avoid abort on invalid broadcast
Print "{bad}" on invalid broadcast instead of abort.
gas/
PR binutils/28247
* testsuite/gas/i386/bad-bcast.d: New file.
* testsuite/gas/i386/bad-bcast.s: Likewise.
* testsuite/gas/i386/i386.exp: Run bad-bcast.
opcodes/
PR binutils/28247
* i386-dis.c (OP_E_memory): Print "{bad}" on invalid broadcast
instead of abort.
| -rw-r--r-- | gas/testsuite/gas/i386/bad-bcast.d | 14 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/bad-bcast.s | 2 | ||||
| -rw-r--r-- | gas/testsuite/gas/i386/i386.exp | 1 | ||||
| -rw-r--r-- | opcodes/i386-dis.c | 8 |
4 files changed, 21 insertions, 4 deletions
diff --git a/gas/testsuite/gas/i386/bad-bcast.d b/gas/testsuite/gas/i386/bad-bcast.d new file mode 100644 index 0000000..9fc474a --- /dev/null +++ b/gas/testsuite/gas/i386/bad-bcast.d @@ -0,0 +1,14 @@ +#objdump: -dw +#name: Disassemble bad broadcast + +.*: +file format .* + + +Disassembly of section .text: + +0+ <.text>: + +[a-f0-9]+: 62 .byte 0x62 + +[a-f0-9]+: c3 ret + +[a-f0-9]+: 8c 1d 66 90 66 90 mov %ds,0x90669066 + +[a-f0-9]+: 66 90 xchg %ax,%ax +#pass diff --git a/gas/testsuite/gas/i386/bad-bcast.s b/gas/testsuite/gas/i386/bad-bcast.s new file mode 100644 index 0000000..e09c3aa --- /dev/null +++ b/gas/testsuite/gas/i386/bad-bcast.s @@ -0,0 +1,2 @@ + .text + .byte 0x62, 0xc3, 0x8c, 0x1d, 0x66, 0x90, 0x66, 0x90, 0x66, 0x90 diff --git a/gas/testsuite/gas/i386/i386.exp b/gas/testsuite/gas/i386/i386.exp index f5eda2c..8095972 100644 --- a/gas/testsuite/gas/i386/i386.exp +++ b/gas/testsuite/gas/i386/i386.exp @@ -646,6 +646,7 @@ if [gas_32_check] then { run_dump_test "dw2-compress-2" run_dump_test "dw2-compressed-2" + run_dump_test "bad-bcast" run_dump_test "bad-size" run_dump_test "size-1" diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 2c7027c..acb5a0f 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -11912,7 +11912,7 @@ OP_E_memory (int bytemode, int sizeflag) { if (vex.w) { - abort (); + oappend ("{bad}"); } else { @@ -11928,7 +11928,7 @@ OP_E_memory (int bytemode, int sizeflag) oappend ("{1to32}"); break; default: - abort (); + oappend ("{bad}"); } } } @@ -11948,7 +11948,7 @@ OP_E_memory (int bytemode, int sizeflag) oappend ("{1to8}"); break; default: - abort (); + oappend ("{bad}"); } } else if (bytemode == x_mode @@ -11966,7 +11966,7 @@ OP_E_memory (int bytemode, int sizeflag) oappend ("{1to16}"); break; default: - abort (); + oappend ("{bad}"); } } else |