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This adds the option to build the Linux kernel using only the
microMIPS ISA. The resulting kernel binary is, at a minimum,
20% smaller than using the MIPS32R2 ISA.
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
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Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Nobody seems to be interested anymore and upstream also never had an
ethernet driver.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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With the upcoming merge of the ARC architecture there is a small likelyhood
of conflicting use for the CONFIG_ARC config symbol. Rename it to
CONFIG_FW_ARC. Also rename CONFIG_ARC32 to CONFIG_FW_ARC32, CONFIG_ARC64
to CONFIG_FW_ARC64.
For consistence also rename CONFIG_SNIPROM to CONFIG_FW_SNIPROM and
CONFIG_CFE to CONFIG_FW_CFE.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com>
with plenty of further shining, polishing, debugging and testing by me.]
Signed-off-by: Maxim Uvarov <muvarov@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: kexec@lists.infradead.org
Cc: horms@verge.net.au
Patchwork: https://patchwork.linux-mips.org/patch/1026/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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The correct syntax for gcc -x is "gcc -x assembler", not
"gcc -xassembler". Even though the latter happens to work, the former
is what is documented in the manual page and thus what gcc wrappers
such as icecream do expect.
This isn't a cosmetic change. The missing space prevents icecream from
recognizing compilation tasks it can't handle, leading to silent kernel
miscompilations.
Besides me, credits go to Michael Matz and Dirk Mueller for
investigating the miscompilation issue and tracking it down to this
incorrect -x parameter syntax.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: stable@vger.kernel.org
Cc: Bernhard Walle <bernhard@bwalle.de>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek.
Fixed up nontrivial merge conflict in Makefile as per Stephen Rothwell
and linux-next (and trivial arch/sparc/Makefile changes due to removed
sparc32 logic).
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
mips: Fix KBUILD_CPPFLAGS definition
kbuild: fix ia64 link
kbuild: document KBUILD_LDS, KBUILD_VMLINUX_{INIT,MAIN} and LDFLAGS_vmlinux
kbuild: link of vmlinux moved to a script
kbuild: refactor final link of sparc32
kbuild: drop unused KBUILD_VMLINUX_OBJS from top-level Makefile
kbuild: Makefile: remove unnecessary check for m68knommu ARCH
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The KBUILD_CPPFLAGS variable is no longer passed to sh -c 'gcc ...',
but exported and used by the link-vmlinux.sh script. This means that the
double-quotes will not be evaluated by the shell.
Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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Same code. Use the generic version. The special Makefile treatment is
pointless anyway as init_task.o contains only data which is handled by
the linker script. So no point on being treated like head text.
Make the linker script align the task on THREAD_SIZE and not on
PAGE_SIZE, as PAGE_SIZE might be smaller than THREAD_SIZE.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Link: http://lkml.kernel.org/r/20120503085034.941344764@linutronix.de
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Add CONFIG_CPU_BMIPS* in all of the right places, so that BMIPS kernel
images will compile and run.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2955/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Commit 5f7efb4 (Kbuild: append missing-syscalls to the default target
list) broke MIPS build.
Reported-tested-and-acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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When trying to compile the 3.1-rc10 kernel for my MIPS board with C=1
(sparse checking), the build fails early with the error:
CHK include/linux/version.h
UPD include/linux/version.h
CHK include/generated/utsrelease.h
UPD include/generated/utsrelease.h
Checking missing-syscalls for N32
CALL scripts/checksyscalls.sh
Checking missing-syscalls for O32
CALL scripts/checksyscalls.sh
CC kernel/bounds.s
GEN include/generated/bounds.h
CC arch/mips/kernel/asm-offsets.s
GEN include/generated/asm-offsets.h
CALL scripts/checksyscalls.sh
HOSTCC scripts/genksyms/genksyms.o
SHIPPED scripts/genksyms/lex.lex.c
SHIPPED scripts/genksyms/keywords.hash.c
SHIPPED scripts/genksyms/parse.tab.h
HOSTCC scripts/genksyms/lex.lex.o
SHIPPED scripts/genksyms/parse.tab.c
HOSTCC scripts/genksyms/parse.tab.o
HOSTLD scripts/genksyms/genksyms
/bin/sh: Syntax error: "(" unexpected
make[3]: *** [scripts/mod/empty.o] Error 2
make[2]: *** [scripts/mod] Error 2
make[1]: *** [scripts] Error 2
It seems the shell chokes because sparse is called with command line
arguments such as:
-D__INT8_C(c)='c'
Converting these to form:
-D'__INT8_C(c)'='c'
seems to fix the problem.
[ralf@linux-mips.org: This affects builds with gcc 4.5 and newer.]
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/2827/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This patch combines linux-mips.org patches
637d69600fb1773da56487271ec2a79c33d237ed [MIPS: Netlogic: Yank out crap.]
and 5e3c263b9658a4b1c6c5577793e9347efb44854e [MIPS: XLR, XLS: Add Kbuild
files for platform.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2415/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Add NLM_XLR_BOARD, CPU_XLR and other config options
Makefile updates, mostly based on r4k
Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2334/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Fixes generated by 'codespell' and manually reviewed.
Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
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Replace EXTRA_CFLAGS with ccflags-y.
Signed-off-by: matt mooney <mfm@muteddisk.com>
Acked-by: WANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
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The CN63XXP1 needs a couple of workarounds to ensure memory is not written
in unexpected ways.
All PREF with hints in the range 0-4,6-24 are replaced with PREF 28. We
pass a flag to the assembler to cover compiler generated code, and patch
uasm for the dynamically generated code.
The write buffer threshold is reduced to 4.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Patchwork: http://patchwork.linux-mips.org/patch/1672/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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It was a nice optimization - on paper at least. In practice it results in
branches that may exceed the maximum legal range for a branch. We can
fight that problem with -ffunction-sections but -ffunction-sections again
is incompatible with -pg used by the function tracer.
By rewriting the loop around all simple LL/SC blocks to C we reduce the
amount of inline assembler and at the same time allow GCC to often fill
the branch delay slots with something sensible or whatever else clever
optimization it may have up in its sleeve.
With this optimization gone we also no longer need -ffunction-sections,
so drop it.
This optimization was originally introduced in 2.6.21, commit
5999eca25c1fd4b9b9aca7833b04d10fe4bc877d (linux-mips.org) rsp.
f65e4fa8e0c6022ad58dc88d1b11b12589ed7f9f (kernel.org).
Original fix for the issues which caused me to pull this optimization by
Paul Gortmaker <paul.gortmaker@windriver.com>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6
* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
modpost: support objects with more than 64k sections
trivial: fix a typo in a filename
frv: clean up arch/frv/Makefile
kbuild: allow assignment to {A,C}FLAGS_KERNEL on the command line
kbuild: allow assignment to {A,C,LD}FLAGS_MODULE on the command line
Kbuild: Add option to set -femit-struct-debug-baseonly
Makefile: "make kernelrelease" should show the correct full kernel version
Makefile.build: make KBUILD_SYMTYPES work again
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This patch is based on previous work by Sony and Himanshu Chauhan.
I have done some cleanup and implemented JProbes and KRETPROBES. The
KRETPROBES part is pretty much copied verbatim from powerpc. A possible
future enhance might be to factor out the common code.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Himanshu Chauhan <hschauhan@nulltrace.org>
To: linux-mips@linux-mips.org
To: ananth@in.ibm.com,
To: anil.s.keshavamurthy@intel.com
To: davem@davemloft.net
To: masami.hiramatsu.pt@hitachi.com
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1525/
Patchwork: https://patchwork.linux-mips.org/patch/1530/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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- Drop CLEAN_FILES assignments that is no longer required
- Add $(Q) in a few rules
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
To: linux-mips <linux-mips@linux-mips.org>
To: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1305/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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- use hostprogs-y for the elf2ecoff
- list all *.o file in targets
- renamed obj-y to vmlinuzobjs-y (it was confusing to re-use a kbuild variable)
- fix all uses of if_changed/cmd
- use kbuild rules to beautify output
- update clean-file to clean vmlinuz.* in top-level directory
- simplied logic in arch/mips/Makefile for compressed targets
The net result is a more kbuild conformant Makefile but
readability did not increase.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
To: linux-mips <linux-mips@linux-mips.org>
To: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1304/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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- remove stuff that is not needed
VMLINUX assignment, all: rule
- use hostprogs-y for the host program
- use kbuild rules for the three targets - to beautify output
- drop clean-files - it is no longer needed
- simplify arch/mips/Makefile when calling targets in boot/Makefile
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
To: linux-mips <linux-mips@linux-mips.org>
To: Wu Zhangjin <wuzhangjin@gmail.com>
Patchwork: https://patchwork.linux-mips.org/patch/1303/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Preparatory cleanup for moving Alchemy over to new MIPS Platform build
system support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Preparatory cleanup for moving Alchemy over to new MIPS Platform build
system support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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It was sharing the nxp directory but no code with pnx833x and will fit
better into the new platform makefile scheme, if moved. Also after the
pnx833x code has been moved up, the pnx8550 Code was the last users of
the nxp dir.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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It was sharing the nxp directory but no code with pnx8550 and will fit
better into the new platform makefile scheme, if moved.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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It was the last platform under gt64120 and will fit better into the new
platform makefile scheme, if moved.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1354/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/1322/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/1321/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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