02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
01 Mar, 2016
1 commit
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Binutils used to be (erroneously) extremely permissive about
instruction usage. But that got fixed and if you don't properly tell
it to accept classes of instructions it will fail.This uncovered a specs bug on sparc in gcc where it wouldn't pass the
proper options to binutils options.Deal with this in the kernel build by adding -Wa,-Av8 to KBUILD_CFLAGS.
Reported-by: Al Viro
Signed-off-by: David S. Miller
05 Aug, 2014
1 commit
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This patches adds an "install" target to install kernel builds for SPARC,
modeled after the i386 script.Signed-off-by: David L Stevens
Signed-off-by: David S. Miller
21 Mar, 2013
1 commit
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This patch adds CONFIG_HIBERNATION support for sparc64
architecture. The suspend function is the same as on another
platforms. The restore function uses Bypass feature of MMU
which allows to make the process more comfortable and plesant.Signed-off-by: Kirill Tkhai
CC: David Miller
CC: Sam Ravnborg
Signed-off-by: David S. Miller
22 May, 2012
1 commit
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Pull smp hotplug cleanups from Thomas Gleixner:
"This series is merily a cleanup of code copied around in arch/* and
not changing any of the real cpu hotplug horrors yet. I wish I'd had
something more substantial for 3.5, but I underestimated the lurking
horror..."Fix up trivial conflicts in arch/{arm,sparc,x86}/Kconfig and
arch/sparc/include/asm/thread_info_32.h* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (79 commits)
um: Remove leftover declaration of alloc_task_struct_node()
task_allocator: Use config switches instead of magic defines
sparc: Use common threadinfo allocator
score: Use common threadinfo allocator
sh-use-common-threadinfo-allocator
mn10300: Use common threadinfo allocator
powerpc: Use common threadinfo allocator
mips: Use common threadinfo allocator
hexagon: Use common threadinfo allocator
m32r: Use common threadinfo allocator
frv: Use common threadinfo allocator
cris: Use common threadinfo allocator
x86: Use common threadinfo allocator
c6x: Use common threadinfo allocator
fork: Provide kmemcache based thread_info allocator
tile: Use common threadinfo allocator
fork: Provide weak arch_release_[task_struct|thread_info] functions
fork: Move thread info gfp flags to header
fork: Remove the weak insanity
sh: Remove cpu_idle_wait()
...
16 May, 2012
3 commits
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This allows us to do:
make arch/sparc/
to build the core part of the sparc kernel.
Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
- delete unused variables
- align assignments
- drop stale comments
- kill use of "\" for line continuationSigned-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
With Cypress gone we can generate real hardware integer multiply
and divide instructions at will.Signed-off-by: David S. Miller
15 May, 2012
1 commit
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Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller
13 May, 2012
1 commit
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We should be agnostic to what gcc happens to be generating by default.
Signed-off-by: David S. Miller
05 May, 2012
1 commit
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Same code. Use the generic version.
Signed-off-by: Thomas Gleixner
Acked-by: "David S. Miller"
Acked-by: Sam Ravnborg
Link: http://lkml.kernel.org/r/20120503085035.463573011@linutronix.de
14 Mar, 2012
1 commit
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Newer version of binutils are more strict about specifying the
correct options to enable certain classes of instructions.The sparc32 build is done for v7 in order to support sun4c systems
which lack hardware integer multiply and divide instructions.So we have to pass -Av8 when building the assembler routines that
use these instructions and get patched into the kernel when we find
out that we have a v8 capable cpu.Reported-by: Paul Gortmaker
Signed-off-by: David S. Miller
17 Mar, 2011
1 commit
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This is only for LEON as u-boot for SPARC only supports LEON.
Signed-off-by: Daniel Hellstrom
Acked-by: Sam Ravnborg
Signed-off-by: David S. Miller
06 Dec, 2009
1 commit
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"ARCH" can be just about anything, so we shouldn't end up
with UTS_MACHINE of "sparc" in a 64-bit kernel build just
because someone set the personality using 'sparc32' or
similar. CONFIG_SPARC64 drives the compilation and
therefore provides the definitive value, not "ARCH".This mirrors commit 8c6531f7a99f29ba8817ffb12cc9ecf190049bd6
(x86: correctly set UTS_MACHINE for "make ARCH=x86")Signed-off-by: David S. Miller
20 Sep, 2009
1 commit
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Albin Tonnerre reported:
Bash 4 filters out variables which contain a dot in them.
This happends to be the case of CPPFLAGS_vmlinux.lds.
This is rather unfortunate, as it now causes
build failures when using SHELL=/bin/bash to compile,
or when bash happens to be used by make (eg when it's /bin/sh)Remove the common definition of CPPFLAGS_vmlinux.lds by
pushing relevant stuff to either Makefile.build or the
arch specific kernel/Makefile where we build the linker script.This is also nice cleanup as we move the information out where
it is used.Notes for the different architectures touched:
arm - we use an already exported symbol
cris - we use a config symbol aleady available
[Not build tested]
mips - the jiffies complexity has moved to vmlinux.lds.S where we need it.
Added a few variables to CPPFLAGS - they are only used by
the linker script.
[Not build tested]
powerpc - removed assignment that is not needed
[not build tested]
sparc - simplified it using $(BITS)
um - introduced a few new exported variables to deal with this
xtensa - added options to CPP invocation
[not build tested]Cc: Albin Tonnerre
Cc: Russell King
Cc: Mikael Starvik
Cc: Jesper Nilsson
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: "David S. Miller"
Cc: Jeff Dike
Cc: Chris Zankel
Signed-off-by: Sam Ravnborg
17 Aug, 2009
1 commit
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Besides creating the uncompressed vmlinux image for sparc64, also
create a compressed zImage. This is more consistent with other
architectures and required to make the 'deb-pkg' target work.Signed-off-by: Jurij Smakov
Signed-off-by: Frans Pop
Signed-off-by: David S. Miller
05 Dec, 2008
10 commits
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A closer inspection revealed that these two files had identical
functionality - but the implementation of it differed slightly.Base it on the sparc version as it was the best.
Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
Simple unification:
o renamed piggyback to *_32.c/*_64.c
o copied content of Makefile from sparc64 to sparc and guard it
o updated sparc/boot/.gitignore
o deleted remaining files in sparc64/bootSigned-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
o Move all files from sparc64/kernel/ to sparc/kernel
- rename as appropriate
o Update sparc/Makefile to the changes
o Update sparc/kernel/Makefile to include the sparc64 filesNOTE: This commit changes link order on sparc64!
Link order had to change for either of sparc32 and sparc64.
And assuming sparc64 see more testing than sparc32 change link
order on sparc64 where issues will be caught faster.Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
o sparc32 files with identical names to sparc64 renamed to _32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
- use obj-$(CONFIG_SPARC32) for sparc32 specific files
- use _$(BITS) for files where sparc64 has a _64 variant
- sparc64 directly include a few files where sparc32 builds them,
refer to these files directly (no BITS)
- sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_taskSigned-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
o Renamed files in sparc64 to _64.S when identical
to sparc32 files.
o iomap.c were equal for sparc32 and sparc64
o adjusted sparc/Makefile now we have only one lib/Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
- all files with identical names copied and renamed to *_64.c
- the remaning files copied as is
- added sparc64 specific files to sparc/prom/Makefile
- teach sparc64 Makefile to look into sparc/prom/
- delete unused Makefile from sparc64/prom/linking order was not kept for sparc64 with this change.
It was not possible to keep linking order for both sparc and sparc64
and as sparc64 see more testing than sparc it was natural to
break linking order on sparc64. Should it have any effect it
would be detected sooner this way.printf_32.c and printf_64.c are obvious candidates to be merged
but they are not 100% equal so that was left for laterSigned-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
To unify Makefile for sparc and sparc64 a few other steps was needed:
1) separate defconfig files for sparc and sparc64 is required,
so locate these in arch/sparc/configs
2) removoval of hack in toplevel Makefile to deal with that
headers was in a separate directory compared to the restThe unification of the Makefile required usage of several
foo-$(CONFIG_SPARCnn) +=
due to a few directories pending unification.
This will be cleaned up when we unify the remaining directories.Included in this patch are the deletion of a few files in
sparc64 as they are no longer needed: Makefile + Kconfig.
arch/sparc64/ will after this patch is applied only
have four directories (prom, lib, kernel, boot)Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
Leave all cleaning to boot/Makefile
and delete zImage too when we do a 'make clean'Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
The btfixup step needs knowledge of all the .o files,
but there is no need to pass them in independent variables.
Simplify it to use only two variables.Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller -
BITS will be used to simplify unified Makefiles
Signed-off-by: Sam Ravnborg
Signed-off-by: David S. Miller
25 Aug, 2008
1 commit
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Add a target for a stripped kernel. This is used for the various
packaging targets (*-pkg).Signed-off-by: Martin Habets
Signed-off-by: David S. Miller
23 Jul, 2008
1 commit
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Otherwise it breaks since we merged asm/page.h
Signed-off-by: Stephen Rothwell
Signed-off-by: David S. Miller
16 Oct, 2007
1 commit
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The variable AFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.This patch replace use of AFLAGS with KBUILD_AFLAGS all over
the tree.Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k, s390Signed-off-by: Sam Ravnborg
15 Oct, 2007
1 commit
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The variable CFLAGS is a wellknown variable and the usage by
kbuild may result in unexpected behaviour.
On top of that several people over time has asked for a way to
pass in additional flags to gcc.This patch replace use of CFLAGS with KBUILD_CFLAGS all over the
tree and enabling one to use:
make CFLAGS=...
to specify additional gcc commandline options.One usecase is when trying to find gcc bugs but other
use cases has been requested too.Patch was tested on following architectures:
alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68kTest was simple to do a defconfig build, apply the patch and check
that nothing got rebuild.Signed-off-by: Sam Ravnborg
18 Oct, 2006
1 commit
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This patch adds profiling support to the sparc architecture. It is a
copy of the sparc64 implementation.Signed-off-by: Martin Habets
Signed-off-by: David S. Miller
13 Dec, 2005
1 commit
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With this fix, sparc links vmlinuz again using crosstool. Without this
fix, the final link fails missing several dozen dozen symbols, beginning
with:kernel/built-in.o(.text+0x6fd0): In function `do_exit':
: undefined reference to `exit_io_context'(exit_io_context is defined in block/ll_rw_blk.c).
Signed-off-by: Paul Jackson
Signed-off-by: Andrew Morton
Signed-off-by: David S. Miller
10 Sep, 2005
1 commit
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Rename all includes to use asm-offsets.h to match generic name
Signed-off-by: Sam Ravnborg
17 Apr, 2005
1 commit
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.Let it rip!
