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2014-06-12Merge branch 'kbuild' of ↵Linus Torvalds1-37/+52
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: "Kbuild changes for v3.16-rc1: - cross-compilation fix so that cc-option is testing the right compiler - Fix for make defconfig all - Using relative paths to the object and source directory where possible, plus fixes for the fallout of the change - several cleanups in the Makefiles and scripts The powerpc fix is from today, because it was only discovered recently. The rest has been in linux-next for some time" * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: powerpc: Avoid circular dependency with zImage.% kbuild: create include/config directory in scripts/kconfig/Makefile kbuild: do not create include/linux directory Makefile: Fix unrecognized cross-compiler command line options kbuild: do not add "selinux" to subdir- twice um: Fix for relative objtree when generating x86 headers kbuild: Use relative path when building in a subdir of the source tree kbuild: Use relative path when building in the source tree kbuild: Use relative path for $(objtree) firmware: Use $(quote) in the Makefile firmware: Simplify directory creation kbuild: trivial - fix comment block indent kbuild: trivial - remove trailing spaces kbuild: support simultaneous "make %config" and "make all" kbuild: move extra gcc checks to scripts/Makefile.extrawarn
2014-06-10kbuild: create include/config directory in scripts/kconfig/MakefileMasahiro Yamada1-2/+0
The directory include/config is used only for silentoldconfig, localmodconfig, localyesconfig. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-10kbuild: do not create include/linux directoryMasahiro Yamada1-2/+2
There are no generated files under include/linux directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-09Makefile: Fix unrecognized cross-compiler command line optionsGeert Uytterhoeven1-4/+6
On architectures that setup CROSS_COMPILE in their arch/*/Makefile (arc, blackfin, m68k, mips, parisc, score, sh, tile, unicore32, xtensa), cc-option and cc-disable-warning may check against the wrong compiler, causing errors like cc1: error: unrecognized command line option "-Wno-maybe-uninitialized" if the host gcc supports a compiler option, while the cross compiler doesn't support that option. Move all logic using cc-option or cc-disable-warning below the inclusion of the arch's Makefile to fix this. Introduced by - commit e74fc973b6e531fef1fce8b101ffff05ecfb774c ("Turn off -Wmaybe-uninitialized when building with -Os"), - commit 61163efae02040f66a95c8ed17f4407951ba58fa ("kbuild: LLVMLinux: Add Kbuild support for building kernel with Clang"). As -Wno-maybe-uninitialized requires a quite recent gcc (gcc 4.6.3 on Ubuntu 12.04 LTS doesn't support it), this only showed up recently (gcc 4.8.2 on Ubuntu 14.04 LTS does support it). Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-06-08Merge tag 'llvmlinux-for-v3.16' of ↵Linus Torvalds1-1/+1
git://git.linuxfoundation.org/llvmlinux/kernel Pull LLVM patches from Behan Webster: "Next set of patches to support compiling the kernel with clang. They've been soaking in linux-next since the last merge window. More still in the works for the next merge window..." * tag 'llvmlinux-for-v3.16' of git://git.linuxfoundation.org/llvmlinux/kernel: arm, unwind, LLVMLinux: Enable clang to be used for unwinding the stack ARM: LLVMLinux: Change "extern inline" to "static inline" in glue-cache.h all: LLVMLinux: Change DWARF flag to support gcc and clang net: netfilter: LLVMLinux: vlais-netfilter crypto: LLVMLinux: aligned-attribute.patch
2014-06-08Linux 3.15v3.15Linus Torvalds1-1/+1
2014-06-07all: LLVMLinux: Change DWARF flag to support gcc and clangBehan Webster1-1/+1
Both gcc (well, actually gnu as) and clang support the "-Wa,-gdwarf-2" option (though clang does not support "-Wa,--gdwarf-2"). Since these flags are equivalent in meaning, this patch uses the one which is better supported across compilers. Signed-off-by: Behan Webster <behanw@converseincode.com>
2014-06-01Linux 3.15-rc8v3.15-rc8Linus Torvalds1-1/+1
2014-05-25Linux 3.15-rc7v3.15-rc7Linus Torvalds1-1/+1
2014-05-22Linux 3.15-rc6v3.15-rc6Linus Torvalds1-1/+1
2014-05-14kbuild: Use relative path when building in a subdir of the source treeMichal Marek1-1/+11
When doing make O=<subdir>, use '..' to refer to the source tree. This allows for more readable compiler messages, and, more importantly, it sets the VPATH to '..', so filenames in WARN_ON() etc. will be shorter. Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-05-14kbuild: Use relative path when building in the source treeMichal Marek1-2/+2
When not using O=, $(srctree) refers to the same directory as $(objtree), so we can set it to '.' as well. This makes the default include path more compact and results in more readable messages from the compiler. The only case where we need the absolute path is when creating the 'source' symlink in /lib/modules. Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-05-14kbuild: Use relative path for $(objtree)Michal Marek1-2/+2
The main Makefile sets its working directory to the object tree and never changes it again. Therefore, we can use '.' instead of the absolute path. The only case where we need the absolute path is when creating the 'build' symlink in /lib/modules. Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-05-09Linux 3.15-rc5v3.15-rc5Linus Torvalds1-1/+1
2014-05-04Linux 3.15-rc4v3.15-rc4Linus Torvalds1-1/+1
2014-04-30kbuild: trivial - fix comment block indentMasahiro Yamada1-17/+16
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-30kbuild: trivial - remove trailing spacesMasahiro Yamada1-4/+4
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-30kbuild: support simultaneous "make %config" and "make all"Masahiro Yamada1-2/+10
Kbuild is supposed to support mixed targets. (%config and build targets) But "make all" did nothing if it was run with configuration targets. For example, $ LANG=C make defconfig all HOSTCC scripts/basic/fixdep HOSTCC scripts/kconfig/conf.o SHIPPED scripts/kconfig/zconf.tab.c SHIPPED scripts/kconfig/zconf.lex.c SHIPPED scripts/kconfig/zconf.hash.c HOSTCC scripts/kconfig/zconf.tab.o HOSTLD scripts/kconfig/conf *** Default configuration is based on 'x86_64_defconfig' # # configuration written to .config # make: Nothing to be done for `all'. This commits allows "make %config all" and makes sure mixed targets are built one by one in the given order. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Michal Marek <mmarek@suse.cz> CC: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-27Linux 3.15-rc3v3.15-rc3Linus Torvalds1-1/+1
2014-04-20Linux 3.15-rc2v3.15-rc2Linus Torvalds1-1/+1
2014-04-16kbuild: move extra gcc checks to scripts/Makefile.extrawarnMasahiro Yamada1-4/+2
W=... provides extra gcc checks. Having such code in scripts/Makefile.build results in the same flags being added to KBUILD_CFLAGS multiple times becuase scripts/Makefile.build is invoked every time Kbuild descends into the subdirectories. Since the top Makefile is already too cluttered, this commit moves all of extra gcc check stuff to a new file scripts/Makefile.extrawarn, which is included from the top Makefile. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> CC: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-13Linux 3.15-rc1v3.15-rc1Linus Torvalds1-2/+2
2014-04-12Merge branch 'misc' of ↵Linus Torvalds1-3/+4
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull misc kbuild changes from Michal Marek: "Here is the non-critical part of kbuild: - One bogus coccinelle check removed, one check fixed not to suggest the obsolete PTR_RET macro - scripts/tags.sh does not index the generated *.mod.c files - new objdiff tool to list differences between two versions of an object file - A fix for scripts/bootgraph.pl" * 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: scripts/coccinelle: Use PTR_ERR_OR_ZERO scripts/bootgraph.pl: Add graphic header scripts: objdiff: detect object code changes between two commits Coccicheck: Remove memcpy to struct assignment test scripts/tags.sh: Ignore *.mod.c
2014-04-09kbuild: LLVMLinux: Add Kbuild support for building kernel with ClangBehan Webster1-1/+29
Add support to toplevel Makefile for compiling with clang, both for HOSTCC and CC. Use cc-option to prevent gcc option from breaking clang, and from clang options from breaking gcc. Clang 3.4 semantics are the same as gcc semantics for unsupported flags. For unsupported warnings clang 3.4 returns true but shows a warning and gcc shows a warning and returns false. Signed-off-by: Behan Webster <behanw@converseincode.com> Signed-off-by: Jan-Simon Möller <dl9pf@gmx.de> Signed-off-by: Mark Charlebois <charlebm@gmail.com> Cc: PaX Team <pageexec@freemail.hu>
2014-04-08scripts: objdiff: detect object code changes between two commitsJason Cooper1-1/+1
objdiff is useful when doing large code cleanups. For example, when removing checkpatch warnings and errors from new drivers in the staging tree. objdiff can be used in conjunction with a git rebase to confirm that each commit made no changes to the resulting object code. It has the same return values as diff(1). This was written specifically to support adding the skein and threefish cryto drivers to the staging tree. I needed a programmatic way to confirm that commits changing >90% of the lines didn't inadvertently change the code. Temporary files (objdump output) are stored in /path/to/linux/.tmp_objdiff 'make mrproper' will remove this directory. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-04-07Merge branch 'kbuild' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild changes from Michal Marek: - cleanups in the main Makefiles and Documentation/DocBook/Makefile - make O=... directory is automatically created if needed - mrproper/distclean removes the old include/linux/version.h to make life easier when bisecting across the commit that moved the version.h file * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: docbook: fix the include error when executing "make help" kbuild: create a build directory automatically for out-of-tree build kbuild: remove redundant '.*.cmd' pattern from make distclean kbuild: move "quote" to Kbuild.include to be consistent kbuild: docbook: use $(obj) and $(src) rather than specific path kbuild: unconditionally clobber include/linux/version.h on distclean kbuild: docbook: specify KERNELDOC dependency correctly kbuild: docbook: include cmd files more simply kbuild: specify build_docproc as a phony target
2014-04-02Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds1-0/+7
Pull devicetree changes from Grant Likely: "Updates to devicetree core code. This branch contains the following notable changes: - add reserved memory binding - make struct device_node a kobject and remove legacy /proc/device-tree - ePAPR conformance fixes - update in-kernel DTC copy to version v1.4.0 - preparatory changes for dynamic device tree overlays - minor bug fixes and documentation changes The most significant change in this branch is the conversion of struct device_node to be a kobject that is exposed via sysfs and removal of the old /proc/device-tree code. This simplifies the device tree handling code and tightens up the lifecycle on device tree nodes. [updated: added fix for dangling select PROC_DEVICETREE]" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits) dt: Remove dangling "select PROC_DEVICETREE" of: Add support for ePAPR "stdout-path" property of: device_node kobject lifecycle fixes of: only scan for reserved mem when fdt present powerpc: add support for reserved memory defined by device tree arm64: add support for reserved memory defined by device tree of: add missing major vendors of: add vendor prefix for SMSC of: remove /proc/device-tree of/selftest: Add self tests for manipulation of properties of: Make device nodes kobjects so they show up in sysfs arm: add support for reserved memory defined by device tree drivers: of: add support for custom reserved memory drivers drivers: of: add initialization code for dynamic reserved memory drivers: of: add initialization code for static reserved memory of: document bindings for reserved-memory nodes Revert "of: fix of_update_property()" kbuild: dtbs_install: new make target ARM: mvebu: Allows to get the SoC ID even without PCI enabled of: Allows to use the PCI translator without the PCI core ...
2014-03-31kbuild: create a build directory automatically for out-of-tree buildMasahiro Yamada1-2/+3
Kbuild supports saving output files in a separate directory. But the build directory must be created beforehand. For example, $ mkdir -p dir/to/store/output/files $ make O=dir/to/store/output/files defconfig Creating a build directory automatically would be useful. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-03-31kbuild: remove redundant '.*.cmd' pattern from make distcleanMasahiro Yamada1-2/+1
'.*.cmd' files are cleaned-up by "make clean". The same pattern in "make distclean" is unnecessary. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-03-31Merge remote-tracking branch 'robh/for-next' into devicetree/nextGrant Likely1-1/+1
2014-03-30Linux 3.14v3.14Linus Torvalds1-1/+1
2014-03-29kbuild: unconditionally clobber include/linux/version.h on distcleanPaul Gortmaker1-1/+1
As of v3.7, the UAPI changes relocated headers around such that the kernel version header lived in a new place. If a person is bisecting and if you go back to pre-UAPI days, you will create an include/linux/version.h -- then if you checkout a post-UAPI kernel, and even run "make distclean" it still won't delete that old version file. So you get a situation like this: $ grep -R LINUX_VERSION_CODE include/ include/generated/uapi/linux/version.h:#define LINUX_VERSION_CODE 200192 include/linux/version.h:#define LINUX_VERSION_CODE 132646 The value in that second line is representative of a v2.6.38 version. And it will be sourced/used, hence leading to strange behaviours, such as drivers/staging content (which typically hasn't been purged of version ifdefs) failing to build. Since it is a subtle mode of failure, lets always clobber the old file when doing a distclean. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-03-24Linux 3.14-rc8v3.14-rc8Linus Torvalds1-1/+1
2014-03-16Linux 3.14-rc7v3.14-rc7Linus Torvalds1-1/+1
2014-03-09Linux 3.14-rc6v3.14-rc6Linus Torvalds1-1/+1
2014-03-04Merge tag 'v3.14-rc5' into HEADGrant Likely1-4/+6
Linux 3.14-rc5
2014-03-02Linux 3.14-rc5v3.14-rc5Linus Torvalds1-1/+1
2014-02-25Makefile: fix build with make 3.80 againJan Beulich1-2/+4
According to Documentation/Changes, make 3.80 is still being supported for building the kernel, hence make files must not make (unconditional) use of features introduced only in newer versions. Commit 8779657d29c0 ("stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG") however introduced an "else ifdef" construct which make 3.80 doesn't understand. Also correct a warning message still referencing the old config option name. Apart from that I question the use of "ifdef" here (but it was used that way already prior to said commit): ifeq (,y) would seem more to the point. Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-25Makefile: fix extra parenthesis typo when CC_STACKPROTECTOR_REGULAR is enabledFathi Boudra1-1/+1
An extra parenthesis typo introduced in 19952a92037e ("stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures") is causing the following error when CONFIG_CC_STACKPROTECTOR_REGULAR is enabled: Makefile:608: Cannot use CONFIG_CC_STACKPROTECTOR: -fstack-protector not supported by compiler Makefile:608: *** missing separator. Stop. Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-02-23Linux 3.14-rc4v3.14-rc4Linus Torvalds1-1/+1
2014-02-20kbuild: dtbs_install: new make targetJason Cooper1-0/+7
Unlike other build products in the Linux kernel, there is no 'make *install' mechanism to put devicetree blobs in a standard place. This commit adds a new 'dtbs_install' make target which copies all of the dtbs into the INSTALL_DTBS_PATH directory. INSTALL_DTBS_PATH can be set before calling make to change the default install directory. If not set then it defaults to: $INSTALL_PATH/dtbs/$KERNELRELEASE. This is done to keep dtbs from different kernel versions separate until things have settled down. Once the dtbs are stable, and not so strongly linked to the kernel version, the devicetree files will most likely move to their own repo. Users will need to upgrade install scripts at that time. v7: (reworked by Grant Likely) - Moved rules from arch/arm/Makefile to arch/arm/boot/dts/Makefile so that each dtb install could have a separate target and be reported as part of the make output. - Fixed dependency problem to ensure $KERNELRELEASE is calculated before attempting to install - Removed option to call external script. Copying the files should be sufficient and a build system can post-process the install directory. Despite the fact an external script is used for installing the kernel, I don't think that is a pattern that should be encouraged. I would rather see buildroot type tools post process the install directory to rename or move dtb files after installing to a staging directory. - Plus it is easy to add a hook after the fact without blocking the rest of this feature. - Move the helper targets into scripts/Makefile.lib with the rest of the common dtb rules Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Grant Likely <grant.likely@linaro.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Russell King <linux@arm.linux.org.uk> Cc: Rob Herring <robh+dt@kernel.org>
2014-02-16Linux 3.14-rc3v3.14-rc3Linus Torvalds1-1/+1
2014-02-09Linux 3.14-rc2v3.14-rc2Linus Torvalds1-1/+1
2014-02-06scripts/tags.sh: Ignore *.mod.cPrarit Bhargava1-2/+3
CONFIG_MODVERSIONS=y results in a .mod.c for every compiled file in the kernel. Issuing a 'make cscope' on a compiled kernel tree results in the cscope files containing *.mod.c files. [prarit@prarit linux]# make cscope [prarit@prarit linux]# cat cscope.files | grep mod.c | wc -l 4807 These files are not useful for cscope and should be ignored. For example, # line filename / context / line 1 105 arch/x86/kvm/kvm-intel.mod.c <<GLOBAL>> { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) }, 2 508 drivers/block/mtip32xx/mtip32xx.h <<GLOBAL>> int numa_node; 3 55 drivers/block/mtip32xx/mtip32xx.mod.c <<GLOBAL>> { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) }, 4 37 drivers/cpufreq/acpi-cpufreq.mod.c <<GLOBAL>> { 0x618911fc, __VMLINUX_SYMBOL_STR(numa_node) }, <snip> Add an export to RCS_FIND_IGNORE so it can be used in scripts/tags.sh and add explicitly ignore *.mod.c files. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Kirill Tkhai <tkhai@yandex.ru> Cc: Michael Opdenacker <michael.opdenacker@free-electrons.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-02-02Linus 3.14-rc1v3.14-rc1Linus Torvalds1-3/+3
2014-01-30Merge branch 'drop-time' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull __TIME__/__DATE__ removal from Michal Marek: "This series by Josh finishes the removal of __DATE__ and __TIME__ from the kernel. The last patch adds -Werror=date-time to KBUILD_CFLAGS to stop these from reappearing. Part of the series went through Greg's trees during this merge window, which is why this pull request is not based on v3.13-rc1" * 'drop-time' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Makefile: Build with -Werror=date-time if the compiler supports it x86: math-emu: Drop already-disabled print of build date net: wireless: brcm80211: Drop debug version with build date/time mtd: denali: Drop print of build date/time
2014-01-30Merge branch 'kbuild' of ↵Linus Torvalds1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild changes from Michal Marek: - fix make -s detection with make-4.0 - fix for scripts/setlocalversion when the kernel repository is a submodule - do not hardcode ';' in macros that expand to assembler code, as some architectures' assemblers use a different character for newline - Fix passing --gdwarf-2 to the assembler * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: frv: Remove redundant debugging info flag mn10300: Remove redundant debugging info flag kbuild: Fix debugging info generation for .S files arch: use ASM_NL instead of ';' for assembler new line character in the macro kbuild: Fix silent builds with make-4 Fix detectition of kernel git repository in setlocalversion script [take #2]
2014-01-27Makefile: Build with -Werror=date-time if the compiler supports itJosh Triplett1-0/+3
GCC 4.9 and newer have a new warning -Wdate-time, which warns on any use of __DATE__, __TIME__, or __TIMESTAMP__, which would make the build non-deterministic. Now that the kernel does not use any of those macros, turn on -Werror=date-time if available, to keep it that way. The kernel already (optionally) records this information at build time in a single place; other kernel code should not duplicate that. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-27kbuild: Fix debugging info generation for .S filesGeoff Levand1-1/+1
Change the debuging info generation flag in KBUILD_AFLAGS from '-gdwarf-2' to '-Wa,--gdwarf-2'. This will properly generate the debugging info for .S files when CONFIG_DEBUG_INFO=y. It seems current gcc does not pass a '--gdwarf-2' option on to the assembler when '-gdwarf-2' is on its command line (note the differece in the gcc and as flags). This change provides the correct assembler flag to gcc, and so does not rely on gcc to emit a flag for the assembler. Signed-off-by: Geoff Levand <geoff@infradead.org> for Huawei, Linaro Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-01-20Merge branch 'core-stackprotector-for-linus' of ↵Linus Torvalds1-3/+17
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull strong stackprotector support from Ingo Molnar: "This tree adds a CONFIG_CC_STACKPROTECTOR_STRONG=y, a new, stronger stack canary checking method supported by the newest GCC versions (4.9 and later). Here's the 'intensity comparison' between the various protection modes: - defconfig 11430641 kernel text size 36110 function bodies - defconfig + CONFIG_CC_STACKPROTECTOR_REGULAR 11468490 kernel text size (+0.33%) 1015 of 36110 functions are stack-protected (2.81%) - defconfig + CONFIG_CC_STACKPROTECTOR_STRONG via this patch 11692790 kernel text size (+2.24%) 7401 of 36110 functions are stack-protected (20.5%) the strong model comes with non-trivial costs, which is why we preserved the 'regular' and 'none' models as well" * 'core-stackprotector-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: stackprotector: Introduce CONFIG_CC_STACKPROTECTOR_STRONG stackprotector: Unify the HAVE_CC_STACKPROTECTOR logic between architectures