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2013-07-01MIPS: initial stack protector supportGregory Fong1-0/+4
Implements basic stack protector support based on ARM version in c743f38013aeff58ef6252601e397b5ba281c633 , with Kconfig option, constant canary value set at boot time, and script to check if compiler actually supports stack protector. Tested by creating a kernel module that writes past end of char[]. Signed-off-by: Gregory Fong <gregory.0xf0@gmail.com> Cc: linux-mips@linux-mips.org Cc: Filippo Arcidiacono <filippo.arcidiacono@st.com> Cc: Carmelo Amoroso <carmelo.amoroso@st.com> Patchwork: https://patchwork.linux-mips.org/patch/5448/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-09MIPS: microMIPS: Add configuration option for microMIPS kernel.Steven J. Hill1-0/+1
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>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle1-1/+1
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>
2012-12-13MIPS: PMC-Sierra Yosemite: Remove support.Ralf Baechle1-2/+0
Nobody seems to be interested anymore and upstream also never had an ethernet driver. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-12-13MIPS: Kconfig: Rename several firmware related config symbols.Ralf Baechle1-3/+3
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>
2012-12-13MIPS: Octeon: Add kexec and kdump supportRalf Baechle1-0/+4
[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>
2012-10-03kbuild: Fix gcc -x syntaxJean Delvare1-1/+1
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>
2012-05-28Merge branch 'kbuild' of ↵Linus Torvalds1-2/+2
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
2012-05-16mips: Fix KBUILD_CPPFLAGS definitionMichal Marek1-2/+2
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>
2012-05-05mips: Use generic init_taskThomas Gleixner1-1/+1
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
2011-12-08MIPS: BMIPS: Add CFLAGS, Makefile entries for BMIPSKevin Cernekee1-0/+1
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>
2011-11-09kbuild: Fix missing system calls check on mips.David Daney1-2/+2
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>
2011-10-20MIPS: Fix build with C=1Aaro Koskinen1-1/+1
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>
2011-10-20MIPS: Don't install vmlinuz if compressed kernel has not been configured.Ralf Baechle1-0/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-07-21MIPS: XLR, XLS: Move makefile bits to were they belong.Ralf Baechle1-12/+0
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>
2011-05-19MIPS: Kconfig and Makefile update for Netlogic XLR/XLSJayachandran C1-0/+12
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>
2011-03-31Fix common misspellingsLucas De Marchi1-2/+2
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-17mips: change to new flag variablematt mooney1-2/+2
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>
2010-10-29MIPS: Octeon: Apply CN63XXP1 errata workarounds.David Daney1-0/+1
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>
2010-10-29MIPS: Get rid of branches to .subsections.Ralf Baechle1-3/+0
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>
2010-08-06Merge branch 'kbuild' of ↵Linus Torvalds1-2/+4
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
2010-08-05MIPS: kprobe: Add support.David Daney1-0/+3
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>
2010-08-05MIPS: Clean up arch/mips/MakefileSam Ravnborg1-13/+4
- 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>
2010-08-05MIPS: Refactor arch/mips/boot/compressed/MakefileSam Ravnborg1-15/+7
- 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>
2010-08-05MIPS: Refactor arch/mips/boot/MakefileSam Ravnborg1-9/+2
- 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>
2010-08-05MIPS: PNX8550: Migrate to new platform makefile style.Ralf Baechle1-18/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: PNX833x: Migrate to new platform makefile style.Ralf Baechle1-8/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: STB8550: Move boards over to obj-yRalf Baechle1-2/+2
Preparatory cleanup for moving Alchemy over to new MIPS Platform build system support. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: STB22x: Move boards over to obj-yRalf Baechle1-2/+2
Preparatory cleanup for moving Alchemy over to new MIPS Platform build system support. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: PNX8550: Move code one directory level up.Ralf Baechle1-3/+3
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>
2010-08-05MIPS: PNX833x: Move code one directory level up.Ralf Baechle1-3/+3
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>
2010-08-05MIPS: EMMA: Migrate to new platform makefile style.Ralf Baechle1-12/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: TXx9: Migrate to new platform makefile style.Ralf Baechle1-22/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Sibyte: Migrate to new platform makefile style.Ralf Baechle1-50/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Octeon: Migrate to new platform makefile style.Ralf Baechle1-12/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: BCM63xx: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: BCM47xx: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Lasat: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: PowerTV: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: WRPPMC: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: WRPPMC: Move code one directory level up.Ralf Baechle1-1/+1
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>
2010-08-05MIPS: RB532: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: IP32: Migrate to new platform makefile style.Ralf Baechle1-12/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Malta: Migrate to new platform makefile style.Ralf Baechle1-8/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: IP22, IP28: Migrate to new platform makefile style.Ralf Baechle1-35/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: SNI: Migrate to new platform makefile style.Ralf Baechle1-12/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: DECstation: Migrate to new platform makefile style.Ralf Baechle1-8/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: Jazz: Migrate to new platform makefile style.Ralf Baechle1-7/+0
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-08-05MIPS: PMC-Sierra: Move board Makefile parts to their own Platform fileShane McDonald1-15/+0
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>
2010-08-05MIPS: Move VR41xx Makefile parts to their own Platform fileYoichi Yuasa1-33/+0
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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