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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2012-09-14 13:22:48 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2012-09-26 15:45:21 +0200 |
| commit | 1a0f24878eb5ca56dff5f20b9f0e716947dc0394 (patch) | |
| tree | cf863abf5ae113716d1e203c1915c59358a7a372 /arch/s390 | |
| parent | s390/perf_events: compile only for CONFIG_64BIT (diff) | |
| download | linux-1a0f24878eb5ca56dff5f20b9f0e716947dc0394.tar.xz linux-1a0f24878eb5ca56dff5f20b9f0e716947dc0394.zip | |
s390/ipl,decrompressor: disable branch profiling
The early kernel decrompressing code can't call into the kernel
in order to profile branches. Fixes this link error:
arch/s390/boot/compressed/misc.o: In function `decompress_kernel':
misc.c:(.text+0x9a6): undefined reference to `ftrace_likely_update'
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
| -rw-r--r-- | arch/s390/boot/compressed/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index 10e22c4ec4a7..3ad8f61c9985 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -11,6 +11,7 @@ targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \ sizes.h head$(BITS).o KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2 +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING KBUILD_CFLAGS += $(cflags-y) KBUILD_CFLAGS += $(call cc-option,-mpacked-stack) KBUILD_CFLAGS += $(call cc-option,-ffreestanding) |