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[Bug gas/21874] x86: Multiple segment registers in the address are not d
From: |
cvs-commit at gcc dot gnu.org |
Subject: |
[Bug gas/21874] x86: Multiple segment registers in the address are not detected with -masm=intel |
Date: |
Tue, 01 Aug 2017 13:00:24 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=21874
--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by H.J. Lu <address@hidden>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=4d36230d59903b92fbe2b53b31ed64a884860f0e
commit 4d36230d59903b92fbe2b53b31ed64a884860f0e
Author: H.J. Lu <address@hidden>
Date: Tue Aug 1 05:53:27 2017 -0700
x86: Update segment register check in Intel syntax
https://sourceware.org/ml/binutils/2009-04/msg00223.html
introduced a new Intel syntax parser which accepts
mov eax, fs:gs:[eax]
It ignores anything between ':'s after fs and treats
mov eax, DWORD PTR fs:foobar:16
mov eax, DWORD PTR fs:foobar:barfoo:16
mov eax, DWORD PTR fs:ds:16
mov eax, DWORD PTR fs:ds:cs:16
as
mov eax, DWORD PTR fs:16
This patch updates segment register check and only allows a single ':'.
PR gas/21874
* config/tc-i386-intel.c (i386_intel_operand): Update segment
register check.
* testsuite/gas/i386/intelok.s: Replace "fs:gs:[eax]" with
"fs:[eax]".
* testsuite/gas/i386/inval-seg.s: Add tests for invalid segment
register.
* testsuite/gas/i386/x86-64-inval-seg.s: Likewise.
* testsuite/gas/i386/inval-seg.l: Updated.
* testsuite/gas/i386/x86-64-inval-seg.l: Likewise.
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