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2019-01-06kbuild: remove redundant target cleaning on failureMasahiro Yamada1-1/+1
Since commit 9c2af1c7377a ("kbuild: add .DELETE_ON_ERROR special target"), the target file is automatically deleted on failure. The boilerplate code ... || { rm -f $@; false; } is unneeded. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-09-10ARM: XIP kernel: store .data compressed in ROMNicolas Pitre1-1/+12
The .data segment stored in ROM is only copied to RAM once at boot time and never referenced afterwards. This is arguably a suboptimal usage of ROM resources. This patch allows for compressing the .data segment before storing it into ROM and decompressing it to RAM rather than simply copying it, saving on precious ROM space. Because global data is not available yet (obviously) we must allocate decompressor workspace memory on the stack. The .bss area is used as a stack area for that purpose before it is cleared. The required stack frame is 9568 bytes for __inflate_kernel_data() alone, so make sure the .bss is large enough to cope with that plus extra room for called functions or fail the build. Those numbers were picked arbitrarily based on the above 9568 byte stack frame: 10240 (2.5 * PAGE_SIZE): used to override -Wframe-larger-than whose default value is 1024. 12288 (3 * PAGE_SIZE): minimum .bss size to contain the stack. Signed-off-by: Nicolas Pitre <nico@linaro.org> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Chris Brandt <Chris.Brandt@renesas.com>
2016-08-12ARM: 8588/1: localise objcopy flagsMark Rutland1-0/+2
We currently define OBJCOPYFLAGS in the top-level arm Makefile, and thus these flags will be passed to all uses of objcopy, kernel-wide, for which they are not explicitly overridden. The flags we set are intended for converting a few ELF files into raw binaries, and thus the flags chosen are problematic for some other uses which do not expect a raw binary result, e.g. the upcoming lkdtm rodata test: http://www.openwall.com/lists/kernel-hardening/2016/06/08/2 This patch localises the objcopy flags such that they are only used for the cases we require them for today. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Kees Cook <keescook@chromium.org> Tested-by: Laura Abbott <labbott@redhat.com> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-06-22ARM: 8576/1: avoid duplicating "Kernel: arch/arm/boot/*Image is ready"Masahiro Yamada1-5/+1
Commit 3939f3345050 ("ARM: 8418/1: add boot image dependencies to not generate invalid images") fixed bad image generation for the parallel building, but as its side effect, Kbuild now descends into arch/arm/boot/ again and again, duplicating the log messages. It looks clumsy, so let's display the same message only once. This commit moves the log rules from arch/arm/boot/Makefile to arch/arm/Makefile. I did not delete them completely because *Image are the final targets that users are interested in. Without this commit, the log of incremental build is like follows: $ make ARCH=arm UIMAGE_LOADADDR=0x80208000 uImage CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CHK include/generated/bounds.h CHK include/generated/timeconst.h CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Image arch/arm/boot/uImage is ready With this commit, it will look like follows: $ make ARCH=arm UIMAGE_LOADADDR=0x80208000 uImage CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h CHK include/generated/bounds.h CHK include/generated/timeconst.h CHK include/generated/asm-offsets.h CALL scripts/checksyscalls.sh CHK include/generated/compile.h Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Kernel: arch/arm/boot/uImage is ready Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-26Merge branch 'kbuild' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: - new option CONFIG_TRIM_UNUSED_KSYMS which does a two-pass build and unexports symbols which are not used in the current config [Nicolas Pitre] - several kbuild rule cleanups [Masahiro Yamada] - warning option adjustments for gcov etc [Arnd Bergmann] - a few more small fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (31 commits) kbuild: move -Wunused-const-variable to W=1 warning level kbuild: fix if_change and friends to consider argument order kbuild: fix adjust_autoksyms.sh for modules that need only one symbol kbuild: fix ksym_dep_filter when multiple EXPORT_SYMBOL() on the same line gcov: disable -Wmaybe-uninitialized warning gcov: disable tree-loop-im to reduce stack usage gcov: disable for COMPILE_TEST Kbuild: disable 'maybe-uninitialized' warning for CONFIG_PROFILE_ALL_BRANCHES Kbuild: change CC_OPTIMIZE_FOR_SIZE definition kbuild: forbid kernel directory to contain spaces and colons kbuild: adjust ksym_dep_filter for some cmd_* renames kbuild: Fix dependencies for final vmlinux link kbuild: better abstract vmlinux sequential prerequisites kbuild: fix call to adjust_autoksyms.sh when output directory specified kbuild: Get rid of KBUILD_STR kbuild: rename cmd_as_s_S to cmd_cpp_s_S kbuild: rename cmd_cc_i_c to cmd_cpp_i_c kbuild: drop redundant "PHONY += FORCE" kbuild: delete unnecessary "@:" kbuild: mark help target as PHONY ...
2016-04-20kbuild: delete unnecessary "@:"Masahiro Yamada1-1/+0
Since commit 2aedcd098a94 ('kbuild: suppress annoying "... is up to date." message'), $(call if_changed,...) is evaluated to "@:" when there is nothing to do. We no longer need to add "@:" after $(call if_changed,...) to suppress "... is up to date." message. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Michal Marek <mmarek@suse.com>
2016-04-19ARM: 8557/1: specify install, zinstall, and uinstall as PHONY targetsMasahiro Yamada1-1/+1
Obviously, these are PHONY targets. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-02-16ARM: 8529/1: remove 'i' and 'zi' targetsMasahiro Yamada1-8/+0
These two targets were introduced by commit 13d5fadf45d1 ("[ARM] Make 'i' and 'zi' targets work") to short-circuit the dependencies for 'install' and 'zinstall'. After that, commit 19514fc665ff ('arm, kbuild: make "make install" not depend on vmlinux') eventually made "(z)install" equivalent to "(z)i". It is true that 'i' and 'zi' might be still useful as shorthands but the original intention had been already lost. They do not even show up in "make ARCH=arm help", so I hope this deletion does not have much impact. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-02-16ARM: 8528/1: drop redundant "PHONY += FORCE"Masahiro Yamada1-1/+1
"PHONY += FORCE" is already cared by scripts/Makefile.build, which this file is included from. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-04-02kbuild: use relative path to include MakefileMasahiro Yamada1-1/+1
The "MAKEFLAGS += --include-dir=$(srctree)" line in the top Makefile allows us to do this. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-10-02arm, kbuild: make "make install" not depend on vmlinuxRobert Richter1-8/+8
Install targets (install, zinstall, uinstall) on arm have a dependency to vmlinux. This may cause parts of the kernel to be rebuilt during installation. We must avoid this since this may run as root. Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus emphasized this in: http://lkml.org/lkml/2013/7/10/600 So on arm and maybe other archs we need the same as for x86: 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux This patch fixes this for arm. Dependencies are removed and instead a check to install.sh is added for the files that are needed. This issue was uncovered by this build error where the -j option is used in conjunction with install targets: $ make <makeflags> $ make <makeflags> zinstall ... DEPMOD Usage: .../scripts/depmod.sh /sbin/depmod <kernelrelease> (INSTALL_MOD_PATH and INSTALL_PATH variables set, so no root perms required in this case.) The problem is that zinstall on arm due to its dependency to vmlinux does a prepare/prepare3 and finally does a forced rewrite of kernel.release even if it exists already. Rebuilding kernel.release removes it first and then recreates it. This might race with another parallel make job running depmod. So this patch should fix this one too. Also quoting $(KERNELRELEASE) arg for install.sh as this messes argument order in case it is empty (which is the case if the kernel was not built yet). Signed-off-by: Robert Richter <robert.richter@linaro.org> Signed-off-by: Robert Richter <rric@kernel.org> Acked-by: Michal Marek <mmarek@suse.cz>. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Michal Marek <mmarek@suse.cz>
2013-03-04ARM: dts: remove generated .dtb files on cleanNishanth Menon1-1/+1
commit 5f300acd8ae9f3d4585154370012ffc5c665330f (ARM: 7152/1: distclean: Remove generated .dtb files) ensured that dtbs were cleaned up when they were in arch/arm/boot. However, with the following commit: commit 499cd8298628eeabf0eb5eb6525d4faa0eec80d8 (ARM: dt: change .dtb build rules to build in dts directory) make clean now leaves dtbs in arch/arm/boot/dts/ untouched. Include dts directory so that clean-files rule from arch/arm/boot/dts/Makefile is invoked when make clean is done. Cc: Dirk Behme <dirk.behme@de.bosch.com> CC: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-02-23ARM: 7656/1: uImage: Error out on build of multiplatform without LOADADDROlof Johansson1-2/+2
On multiplatform kernels, $MACHINE will be empty so there will be no default LOADADDR. Fail to build the uImage target unless one is provided by the developer at build time. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2012-12-11Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds1-12/+0
Pull device tree changes from Grant Likely: "Here are the DT changes I've got queued up for v3.8. As described below, there are a lot of bug fixes here and documentation updates but nothing major: Bug fixes, little cleanups, and documentation changes. The most invasive thing here touches a bunch of the arch directories to use a common build rule for .dtb files. There are no major changes to functionality here other than a few new helper functions." * tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6: (34 commits) arm64: Fix the dtbs target building mtd: nand: davinci: fix the binding documentation rtc: rtc-mv: Add the device tree binding documentation devicetree/bindings: Move gpio-leds binding into leds directory of/vendor-prefixes: add Imagination Technologies microblaze: use new common dtc rule c6x: use new common dtc rule openrisc: use new common dtc rule arm64: Add dtbs target for building all the enabled dtb files arm64: use new common dtc rule ARM: dt: change .dtb build rules to build in dts directory kbuild: centralize .dts->.dtb rule Fix build when CONFIG_W1_MASTER_GPIO=m b exporting "allnodes" of/spi: Honour "status=disabled" property of device of_mdio: Honour "status=disabled" property of device of_i2c: Honour "status=disabled" property of device powerpc: Fix fallout from device_node->name constification of: add 'const' for of_parse_phandle parameter *np Documentation: correct of_platform_populate() argument list script: dtc: clean generated files ...
2012-12-03ARM: dt: change .dtb build rules to build in dts directoryGrant Likely1-12/+0
The current rules have the .dtb files build in a different directory from the .dts files. The only reason for this is that it was what PowerPC has done historically. This patch changes ARM to use the generic dtb rule which builds .dtb files in the same directory as the source .dts. Cc: Russell King <linux@arm.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Olof Johansson <olof@lixom.net> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Grant Likely <grant.likely@secretlab.ca> [swarren: added rm command for old stale .dtb files] Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2012-11-12ARM: boot: Fix usage of kechoFabio Estevam1-5/+5
Since commit edc88ceb0 (ARM: be really quiet when building with 'make -s') the following output is generated when building a kernel for ARM: echo ' Kernel: arch/arm/boot/Image is ready' Kernel: arch/arm/boot/Image is ready Building modules, stage 2. echo ' Kernel: arch/arm/boot/zImage is ready' Kernel: arch/arm/boot/zImage is ready As per Documentation/kbuild/makefiles.txt the correct way of using kecho is '@$(kecho)'. Make this change so no more unwanted 'echo' messages are displayed. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-10-09ARM: be really quiet when building with 'make -s'Arnd Bergmann1-5/+5
Sometimes we want the kernel build process to only print messages on errors, e.g. in automated build testing. This uses the "kecho" macro that the build system provides to hide a few informational messages. Nothing changes for a regular "make" or "make V=1". Without this patch, building any ARM kernel results in: Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Michal Marek <mmarek@suse.cz>
2012-09-14ARM: move all dtb targets out of Makefile.bootRob Herring1-0/+2
In preparation to support multi-platform kernels, move all the dtb targets out of the mach Makefile.boot and into the arch/arm/boot/dts/Makefile which is closer to the sources. DTBs are only built when CONFIG_OF is enabled and now use top level CONFIG_ARCH_xxx instead of chip or board specific config options. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Andrew Victor <linux@maxim.org.za> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Sascha Hauer <kernel@pengutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Cc: Gregory Clement <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Cc: Viresh Kumar <viresh.linux@gmail.com> Cc: Shiraz Hashim <shiraz.hashim@st.com> Cc: Rajeev Kumar <rajeev-dlh.kumar@st.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> Cc: Linus Walleij <linus.walleij@linaro.org>
2012-03-26Kbuild: centralize MKIMAGE and cmd_uimage definitionsStephen Warren1-14/+9
All ARCHs have the same definition of MKIMAGE. Move it to Makefile.lib to avoid duplication. All ARCHs have similar definitions of cmd_uimage. Place a sufficiently parameterized version in Makefile.lib to avoid duplication. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Nicolas Pitre <nico@linaro.org> Tested-by: Mike Frysinger <vapier@gentoo.org> [Blackfin] Tested-by: Michal Simek <monstr@monstr.eu> [Microblaze] Tested-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32] Signed-off-by: Michal Marek <mmarek@suse.cz>
2012-01-16Merge branch 'kbuild' of ↵Linus Torvalds1-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: Kbuild: Use dtc's -d (dependency) option dtc: Implement -d option to write out a dependency file kbuild: Fix comment in Makefile.lib scripts/genksyms: clean lex/yacc generated files kbuild: Correctly deal with make options which contain an "s"
2012-01-15Kbuild: Use dtc's -d (dependency) optionStephen Warren1-2/+4
This hooks dtc into Kbuild's dependency system. Thus, for example, "make dtbs" will rebuild tegra-harmony.dtb if only tegra20.dtsi has changed yet tegra-harmony.dts has not. The previous lack of this feature recently caused me to have very confusing "git bisect" results. For ARM, it's obvious what to add to $(targets). I'm not familiar enough with other architectures to know what to add there. Powerpc appears to already add various .dtb files into $(targets), but the other archs may need something added to $(targets) to work. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> [mmarek: Dropped arch/c6x part to avoid merging commits from the middle of the merge window] Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-11-08ARM: 7152/1: distclean: Remove generated .dtb filesDirk B1-0/+2
The patch 'arm/dt: Add dtb make rule' adds support to create a .dtb file. But this is never removed afterwards. Remove the generated .dtb file if 'distclean' is called. Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com> Acked-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Grant Likely <grant.likely@secretlab.ca> Cc: Shawn Guo <shawn.guo@freescale.com> Cc: Jason Liu <jason.hui@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-17ARM: 7021/1: Check for multiple load addresses before building a uImageSascha Hauer1-0/+9
uImages need a load address specified. This makes them incompatible with multiple zreladdrs. Catch this error before building an uImage so that we do not end up with broken uImages. The load address can still be specified with LOADADDR= on the command line. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-07-25arm/dt: Add dtb make ruleRob Herring1-0/+6
Add a make rule to compile dt blobs for ARM. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Shawn Guo <shawn.guo@freescale.com> Tested-by: Jason Liu <jason.hui@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-23ARM: add 'uinstall' target for installing uboot kernelsRussell King1-0/+4
We have 'install' and 'zinstall' for installing Image and zImage kernels, so add 'uinstall' to complete the set. This allows developers to have a ~/bin/installkernel script which (eg) copies the kernel to the tftp server automatically once the kernel has built, resulting in a better workflow. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-11-30ARM: 6503/1: Thumb-2: Restore sensible zImage header layout for ↵Dave Martin1-5/+0
CONFIG_THUMB2_KERNEL The code which makes up the zImage header intends to leave a 32-byte gap followed by a branch to the real entry point, a magic number, and a word containing the absolute entry point address. This gets messed up with with CONFIG_THUMB2_KERNEL, because the size of the initial padding NOPs changes. Instead, the header can be made fully compatible by restoring it to ARM. In the Thumb-2 case, we can replace the initial NOPs with a sequence which switches to Thumb and jumps to the real entry point. As a consequence, the zImage entry point is now always ARM, so no special magic is needed any more for the uImage rules in the Thumb-2 case. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-09-09ARM: Partially revert "Auto calculate ZRELADDR and provide option for ↵Russell King1-3/+5
exceptions" Partially revert e69edc7, which introduced automatic zreladdr support. The change in the way the manual definition is defined seems to be error and conflict prone. Go back to the original way we were handling this for the time being, while keeping the automatic zreladdr facility. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-07-12ARM: Auto calculate ZRELADDR and provide option for exceptionsEric Miao1-5/+3
As long as the zImage is placed within the 128MB range from the start of memory, ZRELADDR (Address where the decompressed kernel will be placed, usually == PHYS_OFFSET + TEXT_OFFSET) can be determined at run-time by masking PC with 0xf80000000. Running through all the Makefile.boot, all those zreladdr-y addresses == 0x[0-f][08]00_0000 + TEXT_OFFSET can be determined at run-time. Option CONFIG_AUTO_ZRELADDR and CONFIG_ZRELADDR are introduced, CONFIG_ZRELADDR _must_ be explicitly specified if: - ((zreladdr-y - TEXT_OFFSET) & ~0xf8000000) != 0, which means masking PC with 0xf8000000 will result in an incorrect address. Currently this is only a problem on u300. - or the assumption of the zImage being loaded by the bootloader within the first 128MB of RAM is incorrect - or when ZBOOT_ROM is used, where the above assumption is usually wrong. [ukleinek: changed mask from 0xf0000000 to 0xf8000000 for mx1 and shark + some review fixes from the mailing list] Original-Idea-and-Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Eric Miao <eric.miao@canonical.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2009-07-24Thumb-2: Make the uImage entry an odd numberCatalin Marinas1-1/+8
This allows U-Boot to branch to the kernel in Thumb-2 mode via "mov pc, lr". Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2008-04-19[ARM] 4854/1: fix the load address of uImage for CONFIG_ZBOOT_ROM=yUwe Kleine-König1-1/+7
U-Boot puts an image at the load address specified in the uImage header before jumping to the entry point. In the CONFIG_ZBOOT_ROM case ZBOOT_ROM_TEXT is the right load address. Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-07-20[ARM] Make 'i' and 'zi' targets workRussell King1-0/+8
The 'i' and 'zi' targets short-circuit the dependencies for 'install' and 'zinstall' targets; these are useful for installing the kernel on platforms which have make but no compiler installed. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-03-06kbuild: change kbuild to not rely on incorrect GNU make behaviorPaul Smith1-1/+4
The kbuild system takes advantage of an incorrect behavior in GNU make. Once this behavior is fixed, all files in the kernel rebuild every time, even if nothing has changed. This patch ensures kbuild works with both the incorrect and correct behaviors of GNU make. For more details on the incorrect behavior, see: http://lists.gnu.org/archive/html/bug-make/2006-03/msg00003.html Changes in this patch: - Keep all targets that are to be marked .PHONY in a variable, PHONY. - Add .PHONY: $(PHONY) to mark them properly. - Remove any $(PHONY) files from the $? list when determining whether targets are up-to-date or not. Signed-off-by: Paul Smith <psmith@gnu.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-03[ARM] Make kernel link address depend on PAGE_OFFSETRussell King1-1/+1
We are coding the kernel link address into the makefiles, which is invisibly dependent on PAGE_OFFSET. If PAGE_OFFSET is changed, the makefiles also need to be changed. Make adjustments such that the makefiles encode just the offset from PAGE_OFFSET for the kernel link address, and use PAGE_OFFSET in the linker scripts directly. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-04-16Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+91
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!