kernel.git/arch/s390/kernel/Makefile, branch linux-4.11.y

s390/sclp: move early printk code to drivers

2017-02-08T13:13:17Z

Move the early sclp printk code to the drivers folder where also the rest of the sclp code can be found. This way it is possible to use the sclp private header files for further cleanups. Reviewed-by: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: provide sclp based boot console

2017-01-16T06:27:55Z

Use the early sclp code to provide a boot console. This boot console is available if the kernel parameter "earlyprintk" has been specified, just like it works for other architectures that also provide an early boot console. This makes debugging of early problems much easier, since now we finally have working console output even before memory detection is running. The boot console will be automatically disabled as soon as another console will be registered. Reviewed-by: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: cleanup arch/s390/kernel Makefile

2016-12-12T11:11:26Z

Group all compiler flag modification lines together and sort them alphabetically. This should hopefully prevent future bugs due to missing flag modifications. Also fix indentation at some places. Reviewed-by: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: exclude early C code from gcov profiling

2016-12-12T11:10:15Z

Early C code must be excluded from gcov profiling since it may write to the bss section before - a potential initrd that resides there is rescued - the bss section is initialized (zeroed) This patch only addresses the problem that early code is instrumented for profiling, but not the problem that it jumps into other code that is still instrumented. That problem will be fixed with a follow-on patch. Reviewed-by: Peter Oberparleiter Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

2016-10-14T21:26:58Z

Pull kbuild updates from Michal Marek: - EXPORT_SYMBOL for asm source by Al Viro. This does bring a regression, because genksyms no longer generates checksums for these symbols (CONFIG_MODVERSIONS). Nick Piggin is working on a patch to fix this. Plus, we are talking about functions like strcpy(), which rarely change prototypes. - Fixes for PPC fallout of the above by Stephen Rothwell and Nick Piggin - fixdep speedup by Alexey Dobriyan. - preparatory work by Nick Piggin to allow architectures to build with -ffunction-sections, -fdata-sections and --gc-sections - CONFIG_THIN_ARCHIVES support by Stephen Rothwell - fix for filenames with colons in the initramfs source by me. * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: (22 commits) initramfs: Escape colons in depfile ppc: there is no clear_pages to export powerpc/64: whitelist unresolved modversions CRCs kbuild: -ffunction-sections fix for archs with conflicting sections kbuild: add arch specific post-link Makefile kbuild: allow archs to select link dead code/data elimination kbuild: allow architectures to use thin archives instead of ld -r kbuild: Regenerate genksyms lexer kbuild: genksyms fix for typeof handling fixdep: faster CONFIG_ search ia64: move exports to definitions sparc32: debride memcpy.S a bit [sparc] unify 32bit and 64bit string.h sparc: move exports to definitions ppc: move exports to definitions arm: move exports to definitions s390: move exports to definitions m68k: move exports to definitions alpha: move exports to actual definitions x86: move exports to actual definitions ...

s390: enable UBSAN

2016-09-20T12:26:23Z

This enables UBSAN for s390. We have to disable the null sanitizer as s390 code does access memory via a null pointer (the prefix page). Signed-off-by: Christian Borntraeger Acked-by: Andrey Ryabinin Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390: move exports to definitions

2016-08-08T03:47:20Z

Acked-by: Heiko Carstens Signed-off-by: Al Viro

s390/als: fix compile with gcov enabled

2016-07-31T09:28:00Z

Fix this one when gcov is enabled: arch/s390/kernel/als.o:(.data+0x118): undefined reference to `__gcov_merge_add' arch/s390/kernel/als.o: In function `_GLOBAL__sub_I_65535_0_verify_facilities': (.text.startup+0x8): undefined reference to `__gcov_init' Please merge with "s390/als: convert architecture level set code to C". Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky

s390/als: convert architecture level set code to C

2016-07-31T09:27:58Z

There is no reason to have this code in assembly language. Therefore convert it to C. Note that this code needs special treatment: it is called very early and one of the side effects is that e.g. the bss section is not cleared. Therefore the preferred way for static variables is to put them on the stack which has a size of 16KB. There is no functional change with this patch. Signed-off-by: Heiko Carstens Reviewed-by: Sascha Silbe Signed-off-by: Martin Schwidefsky

s390: enable kcov support

2016-06-28T07:32:39Z

Now that hopefully all inline assemblies have been converted to single basic blocks we can enable kcov on s390. Note that this patch does not disable as many files on s390 like the x86 variant does. Right now I didn't see a reason to do that, however additional files or directories can be excluded at any time. The runtime overhead seems to be quite high. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky