svn commit: r379321 - head/devel/armv6-freebsd10.0-xdev/files

[Dimitry Andric]

Author: dim (src committer)
Date: Wed Feb 18 22:26:45 2015
New Revision: 379321
URL: https://svnweb.freebsd.org/changeset/ports/379321
QAT: https://qat.redports.org/buildarchive/r379321/

Log:
  Fix undefined behavior in gas/contrib/tc-arm.c's rotate_left() macro, as
  in https://svnweb.freebsd.org/base?view=revision&revision=274856
  
  This fixes possible "invalid constant after fixup" errors from gas, when
  it has been compiled with high levels of optimization.
  
  PR:		197810
  Approved by:	maintainer (bapt)

Added:
  head/devel/armv6-freebsd10.0-xdev/files/patch-contrib_binutils_gas_config_tc-arm.c   (contents, props changed)

Added: head/devel/armv6-freebsd10.0-xdev/files/patch-contrib_binutils_gas_config_tc-arm.c
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ head/devel/armv6-freebsd10.0-xdev/files/patch-contrib_binutils_gas_config_tc-arm.c	Wed Feb 18 22:26:45 2015	(r379321)
@@ -0,0 +1,11 @@
+--- ./contrib/binutils/gas/config/tc-arm.c.orig	2014-01-16 21:40:13.000000000 +0100
++++ ./contrib/binutils/gas/config/tc-arm.c	2015-02-18 21:57:22.653597000 +0100
+@@ -6060,7 +6060,7 @@
+ 
+ /* Functions for operand encoding.  ARM, then Thumb.  */
+ 
+-#define rotate_left(v, n) (v << n | v >> (32 - n))
++#define rotate_left(v, n) (v << (n % 32) | v >> ((32 - n) % 32))
+ 
+ /* If VAL can be encoded in the immediate field of an ARM instruction,
+    return the encoded form.  Otherwise, return FAIL.  */