user/sven/linux.git/arch/powerpc/Makefile, branch leds/master

powerpc: Don't use gcc specific options on clang

2015-06-11T07:33:05Z

We have code to choose between several options, eg. -mabi=elfv2 vs -mcall-aixdesc, and -mcmodel=medium vs -mminimal-toc. But these are all GCC specific, so use cc-option on all of them. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

powerpc: Don't use -mno-strict-align on clang

2015-06-11T07:33:05Z

We added -mno-strict-align in commit f036b3681962 (powerpc: Work around little endian gcc bug) to fix gcc bug http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57134 Clang doesn't understand it. We need to use a conditional because we can't use the simpler call cc-option here. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

powerpc: Only use -mtraceback=no, -mno-string and -msoft-float if toolchain supports it

2015-06-11T07:33:05Z

These options are not recognised on LLVM, so use call cc-option to check for support. Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

powerpc/configs: Replace pseries_le_defconfig with a Makefile target using merge_config

2015-06-02T06:54:49Z

Rather than continuing to maintain a copy of pseries_defconfig with CONFIG_CPU_LITTLE_ENDIAN enabled, use the generic merge_config script and use an le.config to enable little endian on top of pseries_defconfig without the need for a duplicated _defconfig file. This method will require less maintenance in the future and will ensure that both 'defconfigs' are always in sync. It is worth noting that the seemingly more simple approach of: pseries_le_defconfig: pseries_defconfig $(Q)$(MAKE) le.config Will not work when building using O=builddir. The obvious fix to that: pseries_le_defconfig: $(Q)$(MAKE) -f $(srctree)/Makefile pseries_defconfig le.config Also does not work. This is because if we have for example: config FOO depends on CPU_BIG_ENDIAN select BAR Then BAR will be enabled by the first call to kconfig (via pseries_defconfig), and then will remain enabled after we merge le.config, even though FOO will have been turned off. The solution is to ensure to only invoke the kconfig logic once, after we have merged all the config fragments. This ensures nothing is select'ed on that should then be disabled by the later merged configs. This is done through the explicit call to make olddefconfig Signed-off-by: Cyril Bur Reviewed-by: Samuel Mendoza-Jonas [mpe: Massage change log, fix white space and use ARCH not SRCARCH] Signed-off-by: Michael Ellerman

powerpc: Reject binutils 2.24 when building little endian

2015-05-11T10:00:00Z

There is a bug in binutils 2.24 which causes miscompilation if we're building little endian and using weak symbols (which the kernel does). It is fixed in binutils commit 57fa7b8c7e59 "Correct elf_merge_st_other arguments for weak symbols", which is in binutils 2.25 and has been backported to the binutils 2.24 branch and has been picked up by most distros it seems. However if we're running stock 2.24 (no extra version) then the bug is present, so check for that and bail. Signed-off-by: Michael Ellerman

powerpc: Don't do gcc version checks if we're building with clang

2015-05-11T09:56:40Z

We have several checks for bad gcc versions in our Makefile. These don't apply if we're building with clang, so skip them in that case. The obvious check would be for ${COMPILER} = "gcc", but because of the way the logic in the top level Makefile conditionally sets COMPILER, it's possible that we're building with gcc but COMPILER was not set. So instead check for ${COMPILER} != "clang", which we know is currently the only other possibility. Signed-off-by: Michael Ellerman

powerpc: Convert relocs_check to a shell script using grep

2015-03-23T03:47:39Z

This runs a bit faster and removes another use of perl from the kernel build. Signed-off-by: Stephen Rothwell Acked-By: Tony Breeds Signed-off-by: Michael Ellerman

kbuild: do not add $(call ...) to invoke cc-version or cc-fullversion

2015-01-09T16:25:44Z

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 Acked-by: Helge Deller [parisc] Signed-off-by: Michal Marek

powerpc: Add POWER8 CPU selection

2014-09-25T13:14:49Z

This allows the user to build a kernel targeted at POWER8 (ie gcc -mcpu=power8). Signed-off-by: Anton Blanchard Signed-off-by: Michael Ellerman

Merge branch 'merge' into next

2014-05-28T03:30:12Z

Merge the binutils and kexec fixes.