path: root/scripts
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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-03 13:45:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-03 13:45:43 -0700
commit9b2e077c42a97fcbdc0dd71edb1fc9d15c74ad29 (patch)
tree20bf301d21f6c3776046acada5070630009ceedb /scripts
parenta54dfb1a845c38a97686268d8c4086a63d9493aa (diff)
parent10b63956fce7f369cc37fd4d994f09bd5203efe4 (diff)
Merge tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers
Pull preparatory patches for user API disintegration from David Howells: "The patches herein prepare for the extraction of the Userspace API bits from the various header files named in the Kbuild files. New subdirectories are created under either include/uapi/ or arch/x/include/uapi/ that correspond to the subdirectory containing that file under include/ or arch/x/include/. The new subdirs under the uapi/ directory are populated with Kbuild files that mostly do nothing at this time. Further patches will disintegrate the headers in each original directory and fill in the Kbuild files as they do it. These patches also: (1) fix up #inclusions of "foo.h" rather than <foo.h>. (2) Remove some redundant #includes from the DRM code. (3) Make the kernel build infrastructure handle Kbuild files both in the old places and the new UAPI place that both specify headers to be exported. (4) Fix some kernel tools that #include kernel headers during their build. I have compile tested this with allyesconfig against x86_64, allmodconfig against i386 and a scattering of additional defconfigs of other arches. Prepared for main script Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Acked-by: H. Peter Anvin <hpa@zytor.com>" * tag 'uapi-prep-20121002' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: Plumb the UAPI Kbuilds into the user header installation and checking UAPI: x86: Differentiate the generated UAPI and internal headers UAPI: Remove the objhdr-y export list UAPI: Move linux/version.h UAPI: Set up uapi/asm/Kbuild.asm UAPI: x86: Fix insn_sanity build failure after UAPI split UAPI: x86: Fix the test_get_len tool UAPI: (Scripted) Set up UAPI Kbuild files UAPI: Partition the header include path sets and add uapi/ header directories UAPI: (Scripted) Convert #include "..." to #include <path/...> in kernel system headers UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ UAPI: (Scripted) Remove redundant DRM UAPI header #inclusions from drivers/gpu/. UAPI: Refer to the DRM UAPI headers with <...> and from certain headers only
Diffstat (limited to 'scripts')
2 files changed, 41 insertions, 25 deletions
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index d3bae5e7b60..06ba4a70bd4 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -3,13 +3,12 @@
# header-y - list files to be installed. They are preprocessed
# to remove __KERNEL__ section of the file
-# objhdr-y - Same as header-y but for generated files
-# genhdr-y - Same as objhdr-y but in a generated/ directory
+# genhdr-y - Same as header-y but in a generated/ directory
# ==========================================================================
# called may set destination dir (when installing to asm/)
-_dst := $(if $(dst),$(dst),$(obj))
+_dst := $(or $(destination-y),$(dst),$(obj))
# generated header directory
gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
@@ -17,49 +16,64 @@ gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
kbuild-file := $(srctree)/$(obj)/Kbuild
include $(kbuild-file)
-_dst := $(if $(destination-y),$(destination-y),$(_dst))
+old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
+ifneq ($(wildcard $(old-kbuild-file)),)
+include $(old-kbuild-file)
include scripts/Kbuild.include
-install := $(INSTALL_HDR_PATH)/$(_dst)
+installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
header-y := $(sort $(header-y))
subdirs := $(patsubst %/,%,$(filter %/, $(header-y)))
header-y := $(filter-out %/, $(header-y))
# files used to track state of install/check
-install-file := $(install)/.install
-check-file := $(install)/.check
+install-file := $(installdir)/.install
+check-file := $(installdir)/.check
# generic-y list all files an architecture uses from asm-generic
# Use this to build a list of headers which require a wrapper
wrapper-files := $(filter $(header-y), $(generic-y))
+srcdir := $(srctree)/$(obj)
+gendir := $(objtree)/$(gen)
+oldsrcdir := $(srctree)/$(subst /uapi,,$(obj))
# all headers files for this dir
header-y := $(filter-out $(generic-y), $(header-y))
-all-files := $(header-y) $(objhdr-y) $(genhdr-y) $(wrapper-files)
-input-files := $(addprefix $(srctree)/$(obj)/,$(header-y)) \
- $(addprefix $(objtree)/$(obj)/,$(objhdr-y)) \
- $(addprefix $(objtree)/$(gen)/,$(genhdr-y))
-output-files := $(addprefix $(install)/, $(all-files))
+all-files := $(header-y) $(genhdr-y) $(wrapper-files)
+output-files := $(addprefix $(installdir)/, $(all-files))
+input-files := $(foreach hdr, $(header-y), \
+ $(or \
+ $(wildcard $(srcdir)/$(hdr)), \
+ $(wildcard $(oldsrcdir)/$(hdr)), \
+ $(error Missing UAPI file $(srcdir)/$(hdr)) \
+ )) \
+ $(foreach hdr, $(genhdr-y), \
+ $(or \
+ $(wildcard $(gendir)/$(hdr)), \
+ $(error Missing generated UAPI file $(gendir)/$(hdr)) \
+ ))
# Work out what needs to be removed
-oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
+oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
unwanted := $(filter-out $(all-files),$(oldheaders))
# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
-unwanted-file := $(addprefix $(install)/, $(unwanted))
+unwanted-file := $(addprefix $(installdir)/, $(unwanted))
printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
file$(if $(word 2, $(all-files)),s))
cmd_install = \
- $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \
- $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \
- $(PERL) $< $(objtree)/$(gen) $(install) $(SRCARCH) $(genhdr-y); \
+ $(PERL) $< $(installdir) $(SRCARCH) $(input-files); \
for F in $(wrapper-files); do \
- echo "\#include <asm-generic/$$F>" > $(install)/$$F; \
+ echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
done; \
touch $@
@@ -70,7 +84,7 @@ quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
# Headers list can be pretty long, xargs helps to avoid
# the "Argument list too long" error.
cmd_check = for f in $(all-files); do \
- echo "$(install)/$${f}"; done \
+ echo "$(installdir)/$${f}"; done \
| xargs \
$(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
touch $@
diff --git a/scripts/headers_install.pl b/scripts/headers_install.pl
index 48462be328b..239d22d4207 100644
--- a/scripts/headers_install.pl
+++ b/scripts/headers_install.pl
@@ -4,8 +4,7 @@
# user space and copy the files to their destination.
# Usage: headers_install.pl readdir installdir arch [files...]
-# readdir: dir to open files
-# installdir: dir to install the files
+# installdir: dir to install the files to
# arch: current architecture
# arch is used to force a reinstallation when the arch
# changes because kbuild then detect a command line change.
@@ -18,15 +17,18 @@
use strict;
-my ($readdir, $installdir, $arch, @files) = @ARGV;
+my ($installdir, $arch, @files) = @ARGV;
my $unifdef = "scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__";
-foreach my $file (@files) {
+foreach my $filename (@files) {
+ my $file = $filename;
+ $file =~ s!^.*/!!;
my $tmpfile = "$installdir/$file.tmp";
- open(my $in, '<', "$readdir/$file")
- or die "$readdir/$file: $!\n";
+ open(my $in, '<', $filename)
+ or die "$filename: $!\n";
open(my $out, '>', $tmpfile)
or die "$tmpfile: $!\n";
while (my $line = <$in>) {