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s390x: only build kernels supported by gcc with dynamic arch support 

When building with dynamic arch support, only build kernels for
architectures that are supported by the gcc we are building with.

Signed-off-by: Marius Hillenbrand <mhillen@linux.ibm.com>
This commit is contained in:
Marius Hillenbrand 2020-05-11 18:37:04 +02:00
parent 8c338616f9
commit 62cf391cbb
1 changed files with 18 additions and 0 deletions
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18
Makefile.system
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@ -564,8 +564,26 @@ endif
ifeq ($(ARCH), zarch) ifeq ($(ARCH), zarch)
DYNAMIC_CORE = ZARCH_GENERIC DYNAMIC_CORE = ZARCH_GENERIC
# Z13 is supported since gcc-5.2, gcc-6, and in RHEL 7.3 and newer
GCC_GE_52 := $(subst 0,,$(shell expr `$(CC) -dumpversion` \>= "5.2"))
ifeq ($(wildcard /etc/redhat-release), /etc/redhat-release)
RHEL_WITH_Z13 := $(subst 0,,$(shell source /etc/os-release ; expr $$VERSION_ID \>= "7.3"))
endif
ifeq ($(or $(GCC_GE_52),$(RHEL_WITH_Z13)), 1)
DYNAMIC_CORE += Z13 DYNAMIC_CORE += Z13
else
$(info OpenBLAS: Not building Z13 kernels because gcc is older than 5.2 or 6.x)
endif
GCC_MAJOR_GE_7 := $(shell expr `$(CC) -dumpversion | cut -f1 -d.` \>= 7)
ifeq ($(GCC_MAJOR_GE_7), 1)
DYNAMIC_CORE += Z14 DYNAMIC_CORE += Z14
else
$(info OpenBLAS: Not building Z14 kernels because gcc is older than 7.x)
endif
endif endif
ifeq ($(ARCH), power) ifeq ($(ARCH), power)