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2013-12-20stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architecturesKees Cook1-4/+0
Instead of duplicating the CC_STACKPROTECTOR Kconfig and Makefile logic in each architecture, switch to using HAVE_CC_STACKPROTECTOR and keep everything in one place. This retains the x86-specific bug verification scripts. Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Michal Marek <mmarek@suse.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: James Hogan <james.hogan@imgtec.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-arch@vger.kernel.org Link: http://lkml.kernel.org/r/1387481759-14535-2-git-send-email-keescook@chromium.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2012-06-13sh: Setup CROSS_COMPILE at the topGeert Uytterhoeven1-6/+6
CROSS_COMPILE must be setup before using e.g. cc-option (and a few other as-*, cc-*, ld-* macros), else they will check against the wrong compiler when cross-compiling, and may invoke the cross compiler with wrong or suboptimal compiler options. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-06-13sh: Fix up link time defsym warnings.Paul Mundt1-2/+2
sh-linux-gnu-ld:--defsym 'jiffies=jiffies_64': ignoring invalid character `'' in expression For some reason ld has recently started complaining about the quotes, so just get rid of them, we don't need them for anything anyways. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2012-05-23Merge tag 'sh-for-linus' of git://github.com/pmundt/linux-shLinus Torvalds1-0/+4
Pull SuperH updates from Paul Mundt: - New CPUs: SH7734 (SH-4A), SH7264 and SH7269 (SH-2A) - New boards: RSK2+SH7264, RSK2+SH7269 - Unbreaking kgdb for SMP - Consolidation of _32/_64 page fault handling. - watchdog and legacy DMA chainsawing, part 1 - Conversion to evt2irq() hwirq lookup, to support relocation of vectored IRQs for irqdomains. * tag 'sh-for-linus' of git://github.com/pmundt/linux-sh: (98 commits) sh: intc: Kill off special reservation interface. sh: Enable PIO API for hp6xx and se770x. sh: Kill off machvec IRQ hinting. sh: dma: More legacy cpu dma chainsawing. sh: Kill off MAX_DMA_ADDRESS leftovers. sh: Tidy up some of the cpu legacy dma header mess. sh: Move sh4a dma header from cpu-sh4 to cpu-sh4a. sh64: Fix up vmalloc fault range check. Revert "sh: Ensure fixmap and store queue space can co-exist." serial: sh-sci: Fix for port types without BRI interrupts. sh: legacy PCI evt2irq migration. sh: cpu dma evt2irq migration. sh: sh7763rdp evt2irq migration. sh: sdk7780 evt2irq migration. sh: migor evt2irq migration. sh: landisk evt2irq migration. sh: kfr2r09 evt2irq migration. sh: ecovec24 evt2irq migration. sh: ap325rxa evt2irq migration. sh: urquell evt2irq migration. ...
2012-05-05sh: 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. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Link: http://lkml.kernel.org/r/20120503085035.398257169@linutronix.de
2012-04-19sh: initial stack protector support.Filippo Arcidiacono1-0/+4
This implements basic -fstack-protector support, based on the early ARM version in c743f38013aeff58ef6252601e397b5ba281c633. The SMP case is limited to the initial canary value, while the UP case handles per-task granularity (limited to 32-bit sh until a new enough sh64 compiler manifests itself). Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Reviewed-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-11-01sh: Add default uImage rule for sh7757lcrNobuhiro Iwamatsu1-0/+1
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-06-14serial: sh-sci: Abstract register maps.Paul Mundt1-0/+1
This takes a bit of a sledgehammer to the horribly CPU subtype ifdef-ridden header and abstracts all of the different register layouts in to distinct types which in turn can be overriden on a per-port basis, or permitted to default to the map matching the port type at probe time. In the process this ultimately fixes up inumerable bugs with mismatches on various CPU types (particularly the legacy ones that were obviously broken years ago and no one noticed) and provides a more tightly coupled and consolidated platform for extending and implementing generic features. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2011-01-14sh: support XZ-compressed kernel.Paul Mundt1-1/+2
Follow the x86 change and wire up support for the XZ decompressor. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-29sh: mach-edosk7705: Kill off machtype, consolidate board def.Paul Mundt1-1/+0
Trivial shuffling and tidying. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-29sh: mach-systemh: Kill off dead board.Paul Mundt1-1/+0
This code has been untouched since it was merged many years ago, and has severely bitrotted since, suggesting that the board has no real users left. Notice of intent to remove has been sent out over the last few years, with no takers. Kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-10-29sh: mach-snapgear: Kill off machtype, consolidate board def.Paul Mundt1-1/+0
Only the secureedge5410 was ever supported by this code, so make the board specification explicit rather than perpetuating a mach group. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-04-26sh: mach-sdk7786: update defconfig for compressed kernel image.Paul Mundt1-1/+0
Now that compressed image loading is possible for sdk7786, drop the vmlinux.bin default image target and update the defconfig accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-28sh: mach-titan: Kill off unused PIO port mangling.Paul Mundt1-1/+0
Nothing is using this, kill it off. Fixing up access sizes can be done with trapped I/O for anyone wanting to make use of this for devices that need it, everything else is already pure MMIO. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-14sh: Preliminary SDK7786 board support.Paul Mundt1-0/+2
This stubs in some preliminary board support for the RTE SDK7786. This is quite stunted at the moment, and primarily builds on top of the system FPGA. FPGA IRQs are handled via CPU IRL masking for simplicity, with initial peripheral support restricted to the debug ethernet. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13sh: Add a vmlinux.bin target.Paul Mundt1-1/+3
This makes vmlinux.bin generation an explicit make target, as opposed to just a dependency for some of the other targets. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-01-13sh: Add support for LZO-compressed kernels.Paul Mundt1-2/+3
Plugs in LZO along with the others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-12sh: move machtypes.h to include/generatedSam Ravnborg1-7/+3
Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Michal Marek <mmarek@suse.cz>
2009-12-04sh: Add default uImage rule for se7724, ap325rxa, and migor.Paul Mundt1-0/+3
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30sh: Move ap325rxa board code into separate directoryMagnus Damm1-0/+1
Move the AP325RXA board code from a single board file to a separate directory. This to make it easy to add support for sdram sleep mode code. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27sh: Document uImage.bin target in archhelp.Paul Mundt1-0/+1
This was missing from the previous patch. Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-26sh: add uImage.bin targetMagnus Damm1-1/+1
Add an uImage.bin target to allow uncompressed uImages. Useful for boards with busted u-boot decompression like the rsk7203 on my desk. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-20sh: Add EcoVec (SH7724) board supportKuninori Morimoto1-0/+1
This adds preliminary support for the EcoVec board. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-08-14sh: dwarf unwinder support.Matt Fleming1-0/+4
This is a first cut at a generic DWARF unwinder for the kernel. It's still lacking DWARF64 support and the DWARF expression support hasn't been tested very well but it is generating proper stacktraces on SH for WARN_ON() and NULL dereferences. Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-30sh: Add romImage target to archhelp.Paul Mundt1-0/+1
Adds an archhelp blurb for the romImage target so it is reflected in 'make help'. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-30sh: romImage support V2Magnus Damm1-1/+1
This patch contains support for the romImage build target V2. The resulting romImage file should be burned to rom or flash and could be used as small boot loader. Board code should keep their setup code in the file romimage.h located in their mach include directory. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-23Merge branch 'sh/kfr2r09'Paul Mundt1-0/+1
2009-07-23sh: kfr2r09 board support - SCIF consoleMagnus Damm1-0/+1
This patch adds basic kfr2r09 board support. Only the SCIF1 console is supported with this patch, but this patch and a proper sh7724 configuration is all that is needed. Combine with an initramfs to have a small RAM based kernel and distribution booted as zImage from RAM via JTAG. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-21Merge branches 'sh/compressors' and 'sh/stable-updates'Paul Mundt1-5/+10
2009-07-21sh: bzip2/lzma uImage support.Paul Mundt1-5/+10
This builds on the bzip2/lzma zImage support change and wires it up for uImages. Based on the blackfin implementation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-11sh: Decouple mcount from ftrace.Paul Mundt1-0/+4
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 <lethal@linux-sh.org>
2009-06-10sh: plug vsyscall dir in to archclean.Paul Mundt1-0/+1
The vsyscall targets are presently not cleaned up, so just handle it in the archclean rule. Reported-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-26sh: Add a KBUILD_DEFCONFIG for sh64.Paul Mundt1-9/+10
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Hook up cc-cross-prefix support.Paul Mundt1-0/+6
This implements a simple case that just iterates through the common cases, looking at UTS_MACHINE for hints. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Provide a BITS definition, use it in the arch/sh/boot/ Makefiles.Paul Mundt1-4/+4
This introduces a BITS export that can handily be picked up by Makefiles for cleaner sharing. Reflect its use in arch/sh/boot/compressed/ in preparation for unifying the Makefiles. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-10sh: Tidy up the ldscript output format specifier.Paul Mundt1-2/+6
Tie this in to the Makefile directly, where we already know what we are running on. This tidies up the linker script a bit, and is prep work for unifying the arch/sh/boot/compressed linker scripts. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08sh: Kill off extra cflags Kconfig entry.Paul Mundt1-3/+0
There is no real reason to use this anymore, as the build system generally knows what it is doing with regards to cflags mangling. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-05-08sh: Kill off sh64's hand-rolled syscall tracer.Paul Mundt1-32/+2
This is no longer necessary, as there are now sufficient generic alternatives available. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-03-10sh: Generate uImage by default on Urquell board.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: mach-rsk: Use uImage generation by default for rsk7201/7203.Paul Mundt1-1/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Provide sdivsi3/udivsi3/udivdi3 for sh64, kill off libgcc linking.Paul Mundt1-3/+1
This moves in the necessary libgcc bits and kills off the libgcc linking for sh64 kernels as well. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Consolidate rsk7203/7201 in to a new mach-rsk.Paul Mundt1-0/+1
RSK+ platforms have quite a few characteristics in common, so roll them together in to a shiny new RSK mach-type. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Re-add support for best fit ISA tuning if none is available.Paul Mundt1-5/+20
This was removed in the libgcc integration, but there are still some compilers that need this. We also relax the rules on the ISA tuning in the cases where there are no matches for the CPU tuning and adopt the -any default, which matches the intent of the isa-y target list. This compensates for mismatches where binutils supports a wide array of targets whilst the compiler is much more restricted. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Add -m4al tuning for SH4AL-DSP.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Specify sane default image targets for the SH-2 platforms.Paul Mundt1-0/+3
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22sh: Migrate necessary libgcc bits in to arch/sh/lib for SUPERH32.Paul Mundt1-18/+1
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 <lethal@linux-sh.org>
2008-10-31sh: SHmedia ISA tuning fixups.Paul Mundt1-0/+4
SH-5 doesn't support any elaborate ISA inheritance schemes (-dsp, -up, etc.), so only bother with that if we are building an sh32 kernel. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28sh: Simplify and lock down the ISA tuning.Paul Mundt1-9/+1
The ISA tuning as it is today can not cope with all of the different variations that are possible, so all we can do is a best attempt based on the CPU family. The DSP and FPU generation are already at odds with each other, and the nommu tuning we weren't handling at all. Additionally, for platforms that never had an FPU, the -nofpu variant never existed, meaning that we would lose out on family granular tuning completely in certain cases. With tat out of the way, we were also using -up versions, allowing for later instructions that branched off of a particular subset of the ISA, but are not actually reflected on the hardware being targetted. This leads to some confusion, and the possibility of bogus instructions on older parts. Kill that off and lock it down to the family being built for specifically. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28sh: sh7785lcr: Select uImage as default image target.Paul Mundt1-1/+2
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28sh: Fix FPU tuning on toolchains with mismatched multilib targets.Paul Mundt1-0/+16
Presently there is very little standing in the way of using an SH-4 toolchain for building an SH-2 kernel, and vice versa. Binutils itself has no limitations whatsoever and supports explicit ISA hinting, which we already use with varying degrees of success today. This leaves GCC as the odd one out, due to a rather dubious policy decision by the GCC folks to not include all of the CPU family variants in the default list of multilib targets in GCC4. Despite best efforts to the contrary, libgcc itself already contains awareness of the various CPU types and remains generally usable, allowing it to safely be referenced even on a mismatched target (and indeed, explicit ISA tuning by binutils keeps us honest in terms of ensuring that we do not link incompatible objects in). In order to support this, a couple of changes had to be made. Firstly, the introduction of MAYBE_DECLARE_EXPORT(), which provides a __weak extern reference for libgcc resident routines when finer-grained -m<cpu-family> based tuning is not supported by the toolchain. This fixes up the __sdivsi3_i4i and __udivsi3_i4i references when dealing with SH-2 kernels linked with an SH-4 libgcc. Secondly, in case where we are unable to find a suitable match for CPU family tuning but still have a toolchain that defaults to FP instruction generation, a suitable nofpu target must be selected. This is accomplished by selecting the first nofpu multilib target supported by the toolchain, which is also necessary for selecting the proper libgcc to link against. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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