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c58299aa87
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Stephen Warren c58299aa87 kbuild: create an "include chroot" for DT bindings 
The recent dtc+cpp support allows header files and C pre-processor
defines/macros to be used when compiling device tree files. These
headers will typically define various constants that are part of the
device tree bindings.

The original patch which set up the dtc+cpp include path only considered
using those headers from device tree files. However, most are also
useful for kernel code which needs to interpret the device tree.

In both the DT files and the kernel, I'd like to include the DT-related
headers in the same way, for example, <dt-bindings/gpio/tegra-gpio.h>.
That will simplify any text which discusses the DT header locations.

Creating a <dt-bindings/> for kernel source to use is as simple as
placing files into include/dt-bindings/.

However, when compiling DT files, the include path should be restricted
so that only the dt-bindings path is available; arbitrary kernel headers
shouldn't be exposed. For this reason, create a specific include
directory for use by dtc+cpp, and symlink dt-bindings from there to the
actual location of include/dt-bindings/. For want of a better location,
place this "include chroot" into the existing dts/ directory.

arch/*/boot/dts/include/dt-bindings -> ../../../../../include/dt-bindings

Some headers used by device tree files may not be useful to the kernel;
they may be used simply to aid in constructing the DT file (e.g. macros
to create a node), but not define any information that the kernel needs
to share. These may be placed directly into arch/*/boot/dts/ along with
the DT files themselves.

Acked-by: Michal Marek <mmarek@suse.cz>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
2013-04-05 12:22:32 -06:00
..
basic treewide: Fix typo in various drivers 2013-01-09 11:43:32 +01:00
coccinelle Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2013-02-27 12:27:18 -08:00
dtc script: dtc: clean generated files 2012-11-21 15:53:22 +00:00
genksyms genksyms: fix metag symbol prefix on crc symbols 2013-03-02 20:11:13 +00:00
kconfig Merge branch 'kbuild/rc-fixes' into kbuild/kconfig 2013-02-25 21:51:57 +01:00
ksymoops
mod Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2013-02-27 12:25:47 -08:00
package kbuild: clear KBUILD_SRC when calling 'make' in RPM spec 2013-02-22 10:57:32 +01:00
rt-tester Fix common misspellings 2011-03-31 11:26:23 -03:00
selinux Create Documentation/security/, 2011-05-19 15:59:38 -07:00
tracing tracing, perf: Convert the power tracer into an event tracer 2009-09-19 11:42:12 +02:00
.gitignore X.509: Add simple ASN.1 grammar compiler 2012-10-08 13:50:19 +10:30
asn1_compiler.c X.509: Add simple ASN.1 grammar compiler 2012-10-08 13:50:19 +10:30
bin2c.c
bloat-o-meter bloat-o-meter: include read-only data section in report 2011-03-22 17:44:17 -07:00
bootgraph.pl bootgraph.pl: relax timing information requirements 2011-06-13 00:04:57 +02:00
checkincludes.pl checkincludes: fix perlcritic warnings 2010-03-07 21:19:57 +01:00
checkkconfigsymbols.sh checkkconfigsymbols.sh: Kconfig symbols sometimes have lowercase letters 2010-06-03 10:39:39 +02:00
checkpatch.pl checkpatch: improve CamelCase test for Page 2013-02-27 19:10:08 -08:00
checkstack.pl scripts/checkstack.pl: Add metag support 2013-03-02 20:09:55 +00:00
checksyscalls.sh checksyscalls: fix "here document" handling 2012-09-25 08:59:21 -07:00
checkversion.pl kbuild: don't warn about include/linux/version.h not including itself 2011-04-29 15:38:55 +02:00
cleanfile
cleanpatch
coccicheck coccicheck: Allow to show the executed command line 2013-02-22 14:25:44 +01:00
config scripts/config: Fix wrong "shift" for --keep-case 2012-12-14 14:16:10 +01:00
conmakehash.c Fix all -Wmissing-prototypes warnings in x86 defconfig 2009-09-23 07:39:28 -07:00
decodecode scripts/decodecode: Fixup trapping instruction marker 2012-08-16 11:15:09 -07:00
depmod.sh depmod: pass -P $CONFIG_SYMBOL_PREFIX 2013-02-22 11:52:31 +01:00
diffconfig
docproc.c docproc: cleanup brace placement 2011-06-16 20:40:03 +02:00
export_report.pl export_report: use warn() to issue WARNING, so they go to stderr 2011-05-24 16:07:07 +02:00
extract-ikconfig scripts/extract-ikconfig: add xz compression support 2011-02-10 15:23:03 +01:00
extract-vmlinux scripts: add extract-vmlinux 2011-08-31 16:12:17 +02:00
gcc-goto.sh ARM: 7333/2: jump label: detect %c support for ARM 2012-03-24 09:38:56 +00:00
gcc-version.sh kbuild: Fix gcc -x syntax 2012-10-03 09:03:24 +02:00
gcc-x86_32-has-stack-protector.sh kbuild: Fix gcc -x syntax 2012-10-03 09:03:24 +02:00
gcc-x86_64-has-stack-protector.sh kbuild: Fix gcc -x syntax 2012-10-03 09:03:24 +02:00
gen_initramfs_list.sh Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-24 13:31:37 -07:00
get_maintainer.pl get_maintainer: allow keywords to match filenames 2013-02-27 19:10:09 -08:00
gfp-translate chmod +x scripts/gfp-translate 2012-06-27 12:44:29 -07:00
headerdep.pl headerdep: perlcritic warning 2010-03-23 12:26:38 +01:00
headers_check.pl headers_check: recursively search for linux/types.h inclusion 2012-03-26 14:54:27 +02:00
headers_install.pl UAPI: Strip _UAPI prefix on header install no matter the whitespace 2013-01-02 17:36:10 -08:00
headers.sh kbuild, headers.sh: Don't make archheaders explicitly 2011-11-22 14:47:50 -08:00
kallsyms.c scripts/kallsyms.c: fix potential segfault 2011-05-12 17:23:40 +02:00
Kbuild.include Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2012-10-08 07:56:10 +09:00
kernel-doc scripts/kernel-doc: handle struct member __aligned without numbers 2013-02-27 19:10:09 -08:00
Lindent
link-vmlinux.sh kbuild: Fix reading of .config in link-vmlinux.sh 2013-02-25 16:14:48 +01:00
Makefile X.509: Add simple ASN.1 grammar compiler 2012-10-08 13:50:19 +10:30
Makefile.asm-generic uapi: Allow automatic generation of uapi/asm/ header files 2012-10-17 12:25:44 +01:00
Makefile.build X.509: Add simple ASN.1 grammar compiler 2012-10-08 13:50:19 +10:30
Makefile.clean kbuild: Really don't clean bounds.h and asm-offsets.h 2010-03-11 11:15:22 +01:00
Makefile.fwinst kbuild: Fix accidental revert in commit fe04ddf 2012-10-15 13:01:05 -07:00
Makefile.headersinst kbuild: Fix destination-y for installed headers 2013-02-22 11:48:15 +01:00
Makefile.help Add a target to use the Coccinelle checker 2010-06-12 00:00:29 +02:00
Makefile.host
Makefile.lib kbuild: create an "include chroot" for DT bindings 2013-04-05 12:22:32 -06:00
Makefile.modbuiltin kbuild: Create output directory in Makefile.modbuiltin 2010-06-10 12:23:08 +02:00
Makefile.modinst modules: don't break modules_install on external modules with no key. 2012-11-06 11:52:24 +10:30
Makefile.modpost mod/file2alias: make modalias generation safe for cross compiling 2013-01-24 22:48:04 +01:00
Makefile.modsign MODSIGN: Add modules_sign make target 2012-12-14 13:05:28 +10:30
makelst
markup_oops.pl Merge branch 'for-35' of git://repo.or.cz/linux-kbuild 2010-06-01 08:55:52 -07:00
mkcompile_h Fix handling of backlash character in LINUX_COMPILE_BY name 2011-04-29 15:55:45 +02:00
mkmakefile kbuild: silence generated makefile message 2011-07-20 17:08:08 +02:00
mksysmap trivial: typo in comment in mksysmap 2012-07-20 10:36:05 +02:00
mkuboot.sh mkuboot.sh: Fail if mkimage is missing 2011-01-07 14:31:01 +01:00
mkversion
module-common.lds module: Sort exported symbols 2011-05-19 16:55:27 +09:30
namespace.pl Revert "namespace: add source file location exceptions" 2010-10-28 00:59:56 +02:00
patch-kernel scripts/patch-kernel: digest kernel.org hosted .xz patches 2012-03-30 15:23:36 +02:00
pnmtologo.c scripts/pnmtologo: fix for plain PBM 2012-11-20 11:58:03 +01:00
profile2linkerlist.pl profile2linkerlist: fix perl warnings 2010-03-07 21:39:33 +01:00
recordmcount.c metag: ftrace support 2013-03-02 20:09:55 +00:00
recordmcount.h ftrace: Make recordmcount.c handle __fentry__ 2012-08-23 11:24:43 -04:00
recordmcount.pl ftrace/s390: mcount offset calculation 2011-05-16 15:05:06 -04:00
setlocalversion kbuild: Unset language specific variables in setlocalversion script 2013-02-22 14:18:30 +01:00
show_delta scripts: change scripts to use system python instead of env 2010-02-02 14:33:56 +01:00
sign-file MODSIGN: Add -s <signature> option to sign-file 2013-01-25 16:55:36 +10:30
sortextable.c ARM: 7568/1: Sort exception table at compile time 2012-11-04 10:31:16 +00:00
sortextable.h scripts/sortextable: silence script output 2013-02-14 15:04:41 +01:00
tags.sh Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 2013-02-27 12:27:18 -08:00
unifdef.c unifdef: update to upstream version 2.5 2011-01-22 15:50:59 +01:00
ver_linux Remove bashisms from scripts 2009-06-09 22:37:54 +02:00
xz_wrap.sh xz: Enable BCJ filters on SPARC and 32-bit x86 2012-04-18 13:13:18 -07:00