patches/linux/3.0.3/100-headers_install-fix-__packed-in-exported-kernel-head.patch
author Zhenqiang Chen <zhenqiang.chen@linaro.org>
Fri Nov 18 11:32:50 2011 +0800 (2011-11-18)
branch1.13
changeset 2841 64fe22ca6e6f
permissions -rw-r--r--
cc/gcc: Apply CT_CC_GCC_DISABLE_PCH to do_cc_core.

Otherwise, users have to input --disable-libstdcxx-pch option
when building bare-metal CANADIAN C++ compiler.

Reviewed-by: Michael Hope
Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>
(transplanted from e3e1c9d45bddfbfb433ee9d583faf42fa31f50c0)
     1 commit f210735fe2f17a6225432ee3d1239bcf23a8659c
     2 Author: Markus Trippelsdorf <markus@trippelsdorf.de>
     3 Date:   Fri Jun 24 15:51:00 2011 +0200
     4 
     5     headers_install: fix __packed in exported kernel headers
     6     
     7     checkpatch.pl warns about using __attribute__((packed)) in kernel
     8     headers: "__packed is preferred over __attribute__((packed))". If one
     9     follows that advice it could cause problems in the exported header
    10     files, because the outside world doesn't know about this shortcut.
    11     
    12     For example busybox will fail to compile:
    13      CC      miscutils/ubi_attach_detach.o
    14      In file included from miscutils/ubi_attach_detach.c:27:0:
    15      /usr/include/mtd/ubi-user.h:330:3: error: conflicting types for ‘__packed’
    16      /usr/include/mtd/ubi-user.h:314:3: note: previous declaration of ‘__packed’ was here
    17     ...
    18     
    19     Fix the problem by substituting __packed with __attribute__((packed)) in
    20     the header_install.pl script.
    21     
    22     Cc: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
    23     CC: Joe Perches <joe@perches.com>
    24     Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
    25     Signed-off-by: Michal Marek <mmarek@suse.cz>
    26 
    27 diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
    28 index efb3be1..48462be 100644
    29 --- a/scripts/headers_install.pl
    30 +++ b/scripts/headers_install.pl
    31 @@ -35,6 +35,7 @@ foreach my $file (@files) {
    32  		$line =~ s/([\s(])__iomem\s/$1/g;
    33  		$line =~ s/\s__attribute_const__\s/ /g;
    34  		$line =~ s/\s__attribute_const__$//g;
    35 +		$line =~ s/\b__packed\b/__attribute__((packed))/g;
    36  		$line =~ s/^#include <linux\/compiler.h>//;
    37  		$line =~ s/(^|\s)(inline)\b/$1__$2__/g;
    38  		$line =~ s/(^|\s)(asm)\b(\s|[(]|$)/$1__$2__$3/g;