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
18 Mar, 2016
1 commit
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New gcc (4.8 or later) used new shift helper functions.
So we need added new helper to private libgcc.Signed-off-by: Yoshinori Sato
Signed-off-by: Rich Felker
19 Jul, 2014
1 commit
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Nothing sets function_trace_stop to disable function tracing anymore.
Remove the check for it in the arch code.[ Please test this on your arch ]
Cc: Matt Fleming
Cc: Paul Mundt
Signed-off-by: Steven Rostedt
19 Dec, 2013
1 commit
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E.g. landisk_defconfig, which has CONFIG_NTFS_FS=m:
ERROR: "__ashrdi3" [fs/ntfs/ntfs.ko] undefined!
For "lib-y", if no symbols in a compilation unit are referenced by other
units, the compilation unit will not be included in vmlinux. This
breaks modules that do reference those symbols.Use "obj-y" instead to fix this.
http://kisskb.ellerman.id.au/kisskb/buildresult/8838077/
This doesn't fix all cases. There are others, e.g. udivsi3.
This is also not limited to sh, many architectures handle this in the
same way.A simple solution is to unconditionally include all helper functions.
A more complex solution is to make the choice of "lib-y" or "obj-y" depend
on CONFIG_MODULES:obj-$(CONFIG_MODULES) += ...
lib-y($CONFIG_MODULES) += ...Signed-off-by: Geert Uytterhoeven
Cc: Paul Mundt
Tested-by: Nobuhiro Iwamatsu
Reviewed-by: Nobuhiro Iwamatsu
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
14 Jan, 2013
1 commit
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Somewhere along the line the ebss label was taken out, resulting in pcrel
branch too far errors. Restore the label to get things building again.Signed-off-by: Paul Mundt
27 Jun, 2012
1 commit
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The standard (see BSS_SECTION() in and
) symbol for the end of BSS is __bss_stop.
This allows to remove all local declarations that have been added to
several architectures just to please CONFIG_MTD_UCLINUX.Signed-off-by: Geert Uytterhoeven
Acked-by: Paul Mundt
Acked-by: Mike Frysinger
Acked-by: Michal Simek
Acked-by: Greg Ungerer
15 Feb, 2011
1 commit
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A strange variation was seen in the BogoMIPS figure for the ST40-300.
This was eventually tracked down to sensitivity to the alignment of
the loop. So add an align directive to ensure this doesn't occur.Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt
23 Sep, 2010
1 commit
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Replace EXTRA_CFLAGS with ccflags-y.
Signed-off-by: matt mooney
Signed-off-by: Paul Mundt
24 May, 2010
1 commit
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arch/sh/lib/strlen.S:38: ERROR: trailing whitespace
Signed-off-by: Andrea Gelmini
Signed-off-by: Paul Mundt
01 Mar, 2010
1 commit
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arch/sh/lib/libgcc.h:21: ERROR: open brace '{' following union go on the same line
Signed-off-by: Andrea Gelmini
Signed-off-by: Paul Mundt
24 Nov, 2009
1 commit
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Optimised version of memset for the SH4 which uses movca.l.
Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt
08 Sep, 2009
1 commit
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Now that the cache purging is handled manually by all copy_page()
callers, we can kill off copy_page()'s on writeback. This optimizes the
non-aliasing case.Signed-off-by: Paul Mundt
01 Sep, 2009
1 commit
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Conflicts:
arch/sh/mm/cache-sh4.c
24 Aug, 2009
2 commits
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Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt -
The SH instruction set has several instructions which accept an 8 bit
immediate operand. For logical instructions this operand is zero extended,
for arithmetic instructions the operand is sign extended. After adding an
option to the assembler to check this, it was found that several pieces
of assembly code were assuming this behaviour, and in one case
getting it wrong.So this patch explicitly sign extends any immediate operands, which makes
it obvious what is happening, and fixes the one case which got it wrong.Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt
27 Jul, 2009
2 commits
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Now that this only contains the __clear_user() function, rename it
accordingly.Signed-off-by: Paul Mundt
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This wires up clear_user_highpage() on SH-4 and subsequently converts the
SH7705 32kB cache mode over to using it. Now that the SH-4 implementation
handles all of the dcache purging directly in the aliasing case, there is
no need to do this in the default clear_page() implementation.Signed-off-by: Paul Mundt
11 Jul, 2009
5 commits
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Presently the STACK_CHECK() code is called in to multiple times, although
it's only necessary from the mcount entry. The code still attempts to
treat the nop case as an ftrace path resulting in superfluous code flow
for the case where ftrace is disabled. And finally, this also fixes up
references to a few undefined symbols when FUNCTION_TRACER=n.Signed-off-by: Paul Mundt
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Presently the closest reference to function_trace_stop is within a
CONFIG_STACK_DEBUG block. When this is turned off, the build bails out
with a pcrel too far error. Reorder things a bit to handle the various
combinations.Signed-off-by: Paul Mundt
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This adds a general CONFIG_MCOUNT in order to permit mcount generation
without ftrace support. This is primarily for allowing platforms to
enable aggressive stack overflow checking without having to enable ftrace
support. Based on the sparc64 implementation.Signed-off-by: Paul Mundt
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Add both dynamic and static function graph tracer support for sh.
Signed-off-by: Matt Fleming
Signed-off-by: Paul Mundt -
Enable kernel stack checking code in both the dynamic ftrace and mcount
code paths. Check the stack to see if it's overflowing and make sure
that the stack pointer contains an address that's either in init_stack
or after the bss.Signed-off-by: Matt Fleming
Signed-off-by: Paul Mundt
06 Jul, 2009
2 commits
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Now that I've added TIF_SYSCALL_FTRACE the thread flags do not fit into
a single byte any more. Code testing them now needs to be aware of the
upper and lower bytes.Signed-off-by: Matt Fleming
Signed-off-by: Paul Mundt -
Enable HAVE_FUNCTION_TRACE_MCOUNT_TEST and test the value of
function_trace_stop from our assembly code as opposed to using the
generic C function. This should optimise our mcount/ftrace code path.Signed-off-by: Matt Fleming
Signed-off-by: Paul Mundt
29 Jan, 2009
1 commit
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In rare circumstances csum_partial() can be called with data which is
not 16 or 32 bit aligned. This is been observed with RPC calls for NFS
file systems for example. Add support for handling this without resorting
to the misaligned fixup code (which is why this hasn't been seen as a
problem). This mimics the i386 version, which has had this support for
some time.Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt
22 Dec, 2008
4 commits
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We chan't share code for udivsi3 and udivsi3_i4, because they
have a different clobber list. Copy udivsi3 from gcc-4.1.2.As shown in arch/sh/lib/udivsi3.S (and -Os.S),
.global __udivsi3_i4i
.global __udivsi3_i4
.global __udivsi3
__udivsi3_i4i:
...Three symbols are sharing one code, which is actually udivsi3_i4i.
But, this results unwanted code with gcc 4.1.In gcc, these three are treated as pseudo instructions that have
their own clobber list apart from the usual calling convention.According to sh's machine description. The clobber list is as
follows:- udivsi3_i4i : t,r1,pr,mach,macl
- udivsi3_i4 : t,r0,r1,r4,r5,pr,dr0,dr2,dr4
- udivsi3 : t,r4,prThe caller of udivsi3 will be left with a broken r1 and mac*.
gcc-4.1.x and older(at least to 3.4) generate udivsi3.
ST's gcc-4.1.1 seems to be OK because it has _i4i.Signed-off-by: Takashi YOSHII
Signed-off-by: Paul Mundt -
Needed by older compilers.
Signed-off-by: Paul Mundt
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This moves in the necessary libgcc bits for SUPERH32 and drops the
libgcc linking for the regular targets. This in turn allows us to rip
out quite a few hacks both in sh_ksyms_32 and arch/sh/Makefile.Signed-off-by: Paul Mundt
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First cut at dynamic ftrace support.
Signed-off-by: Matt Fleming
Signed-off-by: Paul Mundt
13 Nov, 2008
1 commit
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The __copy_user function can corrupt the stack in the case of a
non-trivial length of data, and either of the first two move instructions
cause an exception. This is because the fixup for these two instructions
is mapped to the no_pop case, but these instructions execute after the
stack is pushed.This change creates an explicit NO_POP exception mapping macro, and uses
it for the two instructions executed in the trivial case where no stack
pushes occur.More information at ST Linux bugzilla:
https://bugzilla.stlinux.com/show_bug.cgi?id=4824
Signed-off-by: Dylan Reid
Signed-off-by: Stuart Menefy
Signed-off-by: Paul Mundt
01 Oct, 2008
1 commit
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These were doing largely bogus things and using the wrong typing for
the address. Bring these in line with the ARM definitions.Signed-off-by: Paul Mundt
08 Sep, 2008
1 commit
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Signed-off-by: Paul Mundt
28 Jul, 2008
1 commit
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EXPORT_SYMBOL's in lib-y considered harmful:
...
MODPOST 1837 modules
ERROR: "__raw_readsl" [drivers/ssb/ssb.ko] undefined!
ERROR: "__raw_writesl" [drivers/ssb/ssb.ko] undefined!
ERROR: "__raw_writesl" [drivers/net/smc91x.ko] undefined!
ERROR: "__raw_readsl" [drivers/net/smc91x.ko] undefined!
ERROR: "__raw_writesl" [drivers/net/3c59x.ko] undefined!
ERROR: "__raw_readsl" [drivers/net/3c59x.ko] undefined!
...
make[2]: *** [__modpost] Error 1Reported-by: Adrian Bunk
Signed-off-by: Adrian Bunk
Signed-off-by: Paul Mundt
16 May, 2008
1 commit
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Signed-off-by: Hideo Saito
Signed-off-by: Paul Mundt
19 Apr, 2008
1 commit
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Presently these are restricted to SH-3 and SH-4, so we reorder the
ifdefs a bit to let other parts use these also.Signed-off-by: Paul Mundt
28 Jan, 2008
4 commits
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Signed-off-by: Paul Mundt
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Signed-off-by: Paul Mundt
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Signed-off-by: Paul Mundt
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Signed-off-by: Paul Mundt
07 Nov, 2007
1 commit
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Follow the MIPS and sparc64 changes for -Werror instrumentation.
Signed-off-by: Paul Mundt