patches/linux/3.0.9/100-headers_install-fix-__packed-in-exported-kernel-head.patch
docs: Add strategies for assembling root filesystems.
Expand the documentation for using a crosstool-NG-generated toolchain for
building a root filesystem for a target device.
Signed-off-by: "Trevor Woerner" <twoerner@gmail.com>
yann.morin.1998@anciens.enib.fr: some eye-candy]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
1 commit f210735fe2f17a6225432ee3d1239bcf23a8659c
2 Author: Markus Trippelsdorf <markus@trippelsdorf.de>
3 Date: Fri Jun 24 15:51:00 2011 +0200
5 headers_install: fix __packed in exported kernel headers
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.
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
19 Fix the problem by substituting __packed with __attribute__((packed)) in
20 the header_install.pl script.
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>
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;