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Prepared for main script
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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
This commit is contained in:
Linus Torvalds
commit
9b2e077c42
634 changed files with 1399 additions and 1327 deletions
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@ -3,13 +3,12 @@
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#
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# header-y - list files to be installed. They are preprocessed
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# to remove __KERNEL__ section of the file
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# objhdr-y - Same as header-y but for generated files
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# genhdr-y - Same as objhdr-y but in a generated/ directory
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# genhdr-y - Same as header-y but in a generated/ directory
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#
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# ==========================================================================
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# called may set destination dir (when installing to asm/)
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_dst := $(if $(dst),$(dst),$(obj))
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_dst := $(or $(destination-y),$(dst),$(obj))
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# generated header directory
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gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
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@ -17,49 +16,64 @@ gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
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kbuild-file := $(srctree)/$(obj)/Kbuild
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include $(kbuild-file)
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_dst := $(if $(destination-y),$(destination-y),$(_dst))
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old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
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ifneq ($(wildcard $(old-kbuild-file)),)
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include $(old-kbuild-file)
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endif
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include scripts/Kbuild.include
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install := $(INSTALL_HDR_PATH)/$(_dst)
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installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
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header-y := $(sort $(header-y))
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subdirs := $(patsubst %/,%,$(filter %/, $(header-y)))
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header-y := $(filter-out %/, $(header-y))
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# files used to track state of install/check
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install-file := $(install)/.install
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check-file := $(install)/.check
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install-file := $(installdir)/.install
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check-file := $(installdir)/.check
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# generic-y list all files an architecture uses from asm-generic
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# Use this to build a list of headers which require a wrapper
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wrapper-files := $(filter $(header-y), $(generic-y))
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srcdir := $(srctree)/$(obj)
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gendir := $(objtree)/$(gen)
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oldsrcdir := $(srctree)/$(subst /uapi,,$(obj))
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# all headers files for this dir
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header-y := $(filter-out $(generic-y), $(header-y))
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all-files := $(header-y) $(objhdr-y) $(genhdr-y) $(wrapper-files)
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input-files := $(addprefix $(srctree)/$(obj)/,$(header-y)) \
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$(addprefix $(objtree)/$(obj)/,$(objhdr-y)) \
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$(addprefix $(objtree)/$(gen)/,$(genhdr-y))
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output-files := $(addprefix $(install)/, $(all-files))
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all-files := $(header-y) $(genhdr-y) $(wrapper-files)
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output-files := $(addprefix $(installdir)/, $(all-files))
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input-files := $(foreach hdr, $(header-y), \
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$(or \
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$(wildcard $(srcdir)/$(hdr)), \
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$(wildcard $(oldsrcdir)/$(hdr)), \
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$(error Missing UAPI file $(srcdir)/$(hdr)) \
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)) \
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$(foreach hdr, $(genhdr-y), \
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$(or \
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$(wildcard $(gendir)/$(hdr)), \
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$(error Missing generated UAPI file $(gendir)/$(hdr)) \
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))
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# Work out what needs to be removed
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oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
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oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
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unwanted := $(filter-out $(all-files),$(oldheaders))
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# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
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unwanted-file := $(addprefix $(install)/, $(unwanted))
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unwanted-file := $(addprefix $(installdir)/, $(unwanted))
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printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
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quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
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file$(if $(word 2, $(all-files)),s))
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cmd_install = \
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$(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \
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$(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \
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$(PERL) $< $(objtree)/$(gen) $(install) $(SRCARCH) $(genhdr-y); \
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$(PERL) $< $(installdir) $(SRCARCH) $(input-files); \
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for F in $(wrapper-files); do \
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echo "\#include <asm-generic/$$F>" > $(install)/$$F; \
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echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
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done; \
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touch $@
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@ -70,7 +84,7 @@ quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
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# Headers list can be pretty long, xargs helps to avoid
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# the "Argument list too long" error.
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cmd_check = for f in $(all-files); do \
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echo "$(install)/$${f}"; done \
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echo "$(installdir)/$${f}"; done \
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| xargs \
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$(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
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touch $@
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@ -4,8 +4,7 @@
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# user space and copy the files to their destination.
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#
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# Usage: headers_install.pl readdir installdir arch [files...]
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# readdir: dir to open files
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# installdir: dir to install the files
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# installdir: dir to install the files to
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# arch: current architecture
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# arch is used to force a reinstallation when the arch
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# changes because kbuild then detect a command line change.
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@ -18,15 +17,18 @@
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use strict;
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my ($readdir, $installdir, $arch, @files) = @ARGV;
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my ($installdir, $arch, @files) = @ARGV;
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my $unifdef = "scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__";
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foreach my $file (@files) {
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foreach my $filename (@files) {
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my $file = $filename;
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$file =~ s!^.*/!!;
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my $tmpfile = "$installdir/$file.tmp";
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open(my $in, '<', "$readdir/$file")
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or die "$readdir/$file: $!\n";
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open(my $in, '<', $filename)
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or die "$filename: $!\n";
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open(my $out, '>', $tmpfile)
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or die "$tmpfile: $!\n";
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while (my $line = <$in>) {
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