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2016-04-14parisc: Fix ftrace function tracerHelge Deller1-3/+1
Fix the FTRACE function tracer for 32- and 64-bit kernel. The former code was horribly broken. Reimplement most coding in assembly and utilize optimizations, e.g. put mcount() and ftrace_stub() into one L1 cacheline. Signed-off-by: Helge Deller <deller@gmx.de>
2015-02-19Merge branch 'kbuild' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kbuild updates from Michal Marek: - several cleanups in kbuild - serialize multiple *config targets so that 'make defconfig kvmconfig' works - The cc-ifversion macro got support for an else-branch * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild,gcov: simplify kernel/gcov/Makefile more kbuild: allow cc-ifversion to have the argument for false condition kbuild,gcov: simplify kernel/gcov/Makefile kbuild,gcov: remove unnecessary workaround kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion kbuild: fix cc-ifversion macro kbuild: drop $(version_h) from MRPROPER_FILES kbuild: use mixed-targets when two or more config targets are given kbuild: remove redundant line from bounds.h/asm-offsets.h kbuild: merge bounds.h and asm-offsets.h rules kbuild: Drop support for clean-rule
2015-02-17parisc: hpux - Do not compile hpux subdirectoryHelge Deller1-1/+0
Signed-off-by: Helge Deller <deller@gmx.de>
2015-01-09kbuild: do not add $(call ...) to invoke cc-version or cc-fullversionMasahiro Yamada1-1/+1
The macros cc-version, cc-fullversion and ld-version take no argument. It is not necessary to add $(call ...) to invoke them. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Acked-by: Helge Deller <deller@gmx.de> [parisc] Signed-off-by: Michal Marek <mmarek@suse.cz>
2014-09-23parisc: Only use -mfast-indirect-calls option for 32-bit kernel buildsJohn David Anglin1-1/+6
In spite of what the GCC manual says, the -mfast-indirect-calls has never been supported in the 64-bit parisc compiler. Indirect calls have always been done using function descriptors irrespective of the -mfast-indirect-calls option. Recently, it was noticed that a function descriptor was always requested when the -mfast-indirect-calls option was specified. This caused problems when the option was used in application code and doesn't make any sense because the whole point of the option is to avoid using a function descriptor for indirect calls. Fixing this broke 64-bit kernel builds. I will fix GCC but for now we need the attached change. This results in the same kernel code as before. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v3.0+ Signed-off-by: Helge Deller <deller@gmx.de>
2013-11-08parisc: make "make install" not depend on vmlinuxHelge Deller1-7/+15
Install targets (install, zinstall, uinstall) on parisc 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 parisc and maybe other archs we need the same as for x86: 1648e4f8 x86, kbuild: make "make install" not depend on vmlinux This parisc patch was inspired by: 19514fc6 arm, kbuild: make "make install" not depend on vmlinux Signed-off-by: Helge Deller <deller@gmx.de>
2013-07-10parisc: switch to gzip-compressed vmlinuz kernelHelge Deller1-4/+11
The latest PA-RISC Boot Loader (palo) allows loading of gzip compressed vmlinuz kernels. So let's now switch to build a vmlinuz file when we build a palo boot image. PALO version 1.9 (or higher) is required for this which is available at git://git.kernel.org/pub/scm/linux/kernel/git/deller/palo.git Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # 3.10
2013-06-01parisc: rename "CONFIG_PA7100" to "CONFIG_PA7000"Paul Bolle1-1/+1
There's a Makefile line setting cflags for CONFIG_PA7100. But that Kconfig macro doesn't exist. There is a Kconfig symbol PA7000, which covers both PA7000 and PA7100 processors. So let's use the corresponding Kconfig macro. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-14parisc: make default cross compiler search more robust (v3)Helge Deller1-12/+9
People/distros vary how they prefix the toolchain name for 64bit builds. Rather than enforce one convention over another, add a for loop which does a search for all the general prefixes. For 64bit builds, we now search for (in order): hppa64-unknown-linux-gnu hppa64-linux-gnu hppa64-linux For 32bit builds, we look for: hppa-unknown-linux-gnu hppa-linux-gnu hppa-linux hppa2.0-unknown-linux-gnu hppa2.0-linux-gnu hppa2.0-linux hppa1.1-unknown-linux-gnu hppa1.1-linux-gnu hppa1.1-linux This patch was initiated by Mike Frysinger, with feedback from Jeroen Roovers, John David Anglin and Helge Deller. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Jeroen Roovers <jer@gentoo.org> Signed-off-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de>
2013-05-07parisc: fix NATIVE set up in buildMike Frysinger1-3/+1
The ifeq operator does not accept globs, so this little bit of code will never match (unless uname literally prints out "parsic*"). Rewrite to use a pattern matching operator so that NATIVE is set to 1 on parisc. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Helge Deller <deller@gmx.de>
2013-04-26parisc: disable -mlong-calls compiler option for kernel modulesHelge Deller1-2/+4
CONFIG_MLONGCALLS was introduced in commit ec758f98328da3eb933a25dc7a2eed01ef44d849 to overcome linker issues when linking huge linux kernels, e.g. with many modules linked in. But in the kernel module loader there is no support yet for the new relocation types, which is why modules built with -mlong-calls can't be loaded. Furthermore, for modules long calls are not really necessary, since we already use stub sections which resolve long distance calls. So, let's just disable this compiler option when compiling kernel modules. Signed-off-by: Helge Deller <deller@gmx.de>
2013-03-02parisc: do not install modules when installing kernelRolf Eike Beer1-3/+1
PA-RISC is the only arch that installs the modules when installing the kernel. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Signed-off-by: Helge Deller <deller@gmx.de>
2013-02-21parisc: add CONFIG_MLONGCALLS option to enable linkage of huge vmlinux ↵Helge Deller1-0/+4
executables When building a 64bit kernel which includes all necessary drivers and filesystems the vmlinux kernel often gets so huge, that the linker won't be able to resolve the branch stubs. This patch overcomes this limit by providing an option to compile the kernel with the -mlong-calls compiler option. Signed-off-by: Helge Deller <deller@gmx.de>
2013-02-21parisc: enhance automatic CONFIG_CROSS_COMPILE detectionHelge Deller1-5/+4
The current Makefile will only choose the hppa64 cross compiler when running natively on hppa in a 32bit userspace. This patch additionally chooses the correct 32/64 bit hppa compiler even when doing real cross compiling to hppa/hppa64 from another architecture. Signed-off-by: Helge Deller <deller@gmx.de>
2012-06-05[PARISC] fix code to find libgccJames Bottomley1-1/+2
Sam broke this with commit 1f2bfbd00e466ff3489b2ca5cc75b1cccd14c123 Author: Sam Ravnborg <sam@ravnborg.org> Date: Sat May 5 10:18:41 2012 +0200 kbuild: link of vmlinux moved to a script But we should be deriving the location of libgcc in the same way as all the other archs, so fix by adding a LIBGCC variable which is evaluated in the makefile Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-05-07parisc: Fix init_task falloutThomas Gleixner1-1/+1
Forgot to remove the objects from the Makefiles. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2012-02-28[PARISC] don't unconditionally override CROSS_COMPILE for 64 bit.James Bottomley1-0/+4
The user may wish to set their own value (for real cross compiles). Since the top level Makefile initialises CROSS_COMPILE to empty by default, we must check it for being empty (rather than for being defined) before we override. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2009-09-20kbuild: use INSTALLKERNEL to select customized installkernel scriptSam Ravnborg1-2/+2
Replace the use of CROSS_COMPILE to select a customized installkernel script with the possibility to set INSTALLKERNEL to select a custom installkernel script when running make: make INSTALLKERNEL=arm-installkernel install With this patch we are now more consistent across different architectures - they did not all support use of CROSS_COMPILE. The use of CROSS_COMPILE was a hack as this really belongs to gcc/binutils and the installkernel script does not change just because we change toolchain. The use of CROSS_COMPILE caused troubles with an upcoming patch that saves CROSS_COMPILE when a kernel is built - it would no longer be installable. [Thanks to Peter Z. for this hint] This patch undos what Ian did in commit: 0f8e2d62fa04441cd12c08ce521e84e5bd3f8a46 ("use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh") The patch has been lightly tested on x86 only - but all changes looks obvious. Acked-by: Peter Zijlstra <peterz@infradead.org> Acked-by: Mike Frysinger <vapier@gentoo.org> [blackfin] Acked-by: Russell King <linux@arm.linux.org.uk> [arm] Acked-by: Paul Mundt <lethal@linux-sh.org> [sh] Acked-by: "H. Peter Anvin" <hpa@zytor.com> [x86] Cc: Ian Campbell <icampbell@arcom.com> Cc: Tony Luck <tony.luck@intel.com> [ia64] Cc: Fenghua Yu <fenghua.yu@intel.com> [ia64] Cc: Hirokazu Takata <takata@linux-m32r.org> [m32r] Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k] Cc: Kyle McMartin <kyle@mcmartin.ca> [parisc] Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc] Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Cc: Thomas Gleixner <tglx@linutronix.de> [x86] Cc: Ingo Molnar <mingo@redhat.com> [x86] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-03-31parisc: add ftrace (function and graph tracer) functionalityHelge Deller1-1/+3
This patch adds the ftrace debugging functionality to the parisc kernel. It will currently only work with 64bit kernels, because the gcc options -pg and -ffunction-sections can't be enabled at the same time and -ffunction-sections is still needed to be able to link 32bit kernels. Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2009-01-05parisc: quiet palo not-found message from "which"Kyle McMartin1-1/+1
Reduces moaning when building on a machine without palo installed. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2008-03-16[PARISC] move defconfig to arch/parisc/configs/Adrian Bunk1-0/+3
This patch moves the default parisc defconfig to arch/parisc/configs/generic_defconfig where it belongs and selects it as the default defconfig through KBUILD_DEFCONFIG. Signed-off-by: Adrian Bunk <adrian.bunk@movial.fi> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-12-06Revert "[PARISC] import necessary bits of libgcc.a"Kyle McMartin1-1/+1
This reverts commit efb80e7e097d0888e59fbbe4ded2ac5a256f556d, it turned out to cause sporadic problems with the timer interrupt on 32-bit kernels. Needs more investigation. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-20[PARISC] Make palo target work when $obj != $srcKyle McMartin1-5/+9
Stumbled upon when I was testing it out and using make O=... to build. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-20[PARISC] Fix tests in palo targetKyle McMartin1-2/+2
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-19[PARISC] Fix palo targetKyle McMartin1-1/+1
Hunk missing from previous commit, oops. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-19[PARISC] Restore palo targetKyle McMartin1-0/+20
Turns out, people were still using it, and it accidently works. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-19[PARISC] Attempt to clean up parisc/MakefileKyle McMartin1-38/+24
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-18[PARISC] import necessary bits of libgcc.aKyle McMartin1-1/+1
Currently we're hacking libs-y to include libgcc.a, but this has unforeseen consequences since the userspace libgcc is linked with fpregs enabled. We need the kernel to stop using fpregs in an uncontrolled manner to implement lazy fpu state saves. Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
2007-10-15kbuild: enable 'make CFLAGS=...' to add additional options to CCSam Ravnborg1-1/+1
The variable CFLAGS is a wellknown variable and the usage by kbuild may result in unexpected behaviour. On top of that several people over time has asked for a way to pass in additional flags to gcc. This patch replace use of CFLAGS with KBUILD_CFLAGS all over the tree and enabling one to use: make CFLAGS=... to specify additional gcc commandline options. One usecase is when trying to find gcc bugs but other use cases has been requested too. Patch was tested on following architectures: alpha, arm, i386, x86_64, mips, sparc, sparc64, ia64, m68k Test was simple to do a defconfig build, apply the patch and check that nothing got rebuild. Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-12-08[PARISC] Remove GCC_VERSION usage as suggested by Adrian BunkGrant Grundler1-6/+2
Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-22[PARISC] Update minimum compiler version and CROSS_COMPILE for parisc64Randolph Chung1-1/+10
Prefix changed in debian, include "gnu" in the commandline. Signed-off-by: Carlos O'Donell <carlos@parisc-linux.org> Ensure the compiler version is new enough (>= 3.3) Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-10-22[PARISC] Disable use of fpregs in pa_memcpyRandolph Chung1-1/+1
Disable use of fpregs in pa_memcpy, and turn on the -mdisable-fpregs flag. Signed-off-by: Randolph Chung <tausq@parisc-linux.org> Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
2005-09-09kbuild: m68k,parisc,ppc,ppc64,s390,xtensa use generic asm-offsets.h supportSam Ravnborg1-9/+1
Delete obsoleted parts form arch makefiles and rename to asm-offsets.h Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+121
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!
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