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gcc-4.7: Fix incorrect warning with -Wcast-qual

This patch backport the fix where -Wcast-qual
reports a bogus warning with 4.7.2, There is
no workaround in code that can be done to avoid
it hence the fix to gcc is backported.

(From OE-Core rev: 5d8ef98225773a6ec88b5e1a76ce01d76163b3a5)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
2013-03-10 23:28:13 -07:00
committed by Richard Purdie
parent 975e259d2e
commit f6cc25ce12
2 changed files with 45 additions and 1 deletions
+2 -1
View File
@@ -1,6 +1,6 @@
require gcc-common.inc
PR = "r18"
PR = "r19"
# Third digit in PV should be incremented after a minor release
# happens from this branch on gcc e.g. currently its 4.7.1
@@ -75,6 +75,7 @@ SRC_URI = "${GNU_MIRROR}/gcc/gcc-${PV}/gcc-${PV}.tar.bz2 \
file://0001-crtstuff.c-USE_PT_GNU_EH_FRAME-Define-for-systems-us.patch \
file://0001-Makefile.in-vis_hide-gen-hide-list-Do-not-make-defin.patch \
file://use-ml-conf-files-from-B.patch \
file://wcast-qual-PR55383.patch \
"
SRC_URI[md5sum] = "cc308a0891e778cfda7a151ab8a6e762"
SRC_URI[sha256sum] = "8a9283d7010fb9fe5ece3ca507e0af5c19412626384f8a5e9434251ae100b084"
@@ -0,0 +1,43 @@
This is a backport from gcc bugzilla
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55383
fixes wrong warning behavior which has no workaround
other than disabling the warning
Upstream-Status: Backport
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Index: gcc-4.7.2/gcc/c-typeck.c
===================================================================
--- gcc-4.7.2.orig/gcc/c-typeck.c 2012-09-13 10:04:44.000000000 -0700
+++ gcc-4.7.2/gcc/c-typeck.c 2013-03-10 23:09:17.610899536 -0700
@@ -4557,7 +4557,7 @@
/* There are qualifiers present in IN_OTYPE that are not present
in IN_TYPE. */
warning_at (loc, OPT_Wcast_qual,
- "cast discards %q#v qualifier from pointer target type",
+ "cast discards %qv qualifier from pointer target type",
discarded);
if (added || discarded)
Index: gcc-4.7.2/gcc/testsuite/c-c++-common/Wcast-qual-1.c
===================================================================
--- gcc-4.7.2.orig/gcc/testsuite/c-c++-common/Wcast-qual-1.c 2011-04-07 14:47:38.000000000 -0700
+++ gcc-4.7.2/gcc/testsuite/c-c++-common/Wcast-qual-1.c 2013-03-10 23:15:45.610894589 -0700
@@ -85,11 +85,11 @@
void
f4 (void * const **bar)
{
- const void ***p9 = (const void ***) bar; /* { dg-warning "cast" } */
+ const void ***p9 = (const void ***) bar; /* { dg-warning "cast discards .const. qualifier" } */
void * const **p11 = (void * const **) bar;
- void ** const *p13 = (void ** const *) bar; /* { dg-warning "cast" } */
+ void ** const *p13 = (void ** const *) bar; /* { dg-warning "cast discards .const. qualifier" } */
const void * const **p15 = (const void * const **) bar; /* { dg-warning "cast" } */
- const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast" } */
+ const void ** const *p17 = (const void ** const *) bar; /* { dg-warning "cast discards .const. qualifier" } */
void * const * const * p19 = (void * const * const *) bar;
const void * const * const *p21 = (const void * const * const *) bar;
}