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OpenBLAS/Makefile.arm

Makefile.arm 347 B
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arm: Determine the abi from compiler if not specified on command line If ARM abi is not explicitly mentioned on the command line, then set the arm abi to softfp or hard according to the compiler environment. This assumes that compiler sets the defines __ARM_PCS and __ARM_PCS_VFP accordingly.
8 years ago
Support Android NDK armeabi-v7a-hard ABI. (-mfloat-abi=hard) e.g. make HOSTCC=gcc CC=arm-linux-androideabi-gcc NO_LAPACK=1 TARGET=ARMV7 In Android NDK, it uses armeabi-v7a-hard ABI. TARGET_CFLAGS += -mhard-float -D_NDK_MATH_NO_SOFTFP=1 TARGET_LDFLAGS += -Wl,--no-warn-mismatch -lm_hard For more information, please check hard-float example at android_ndk/tests/device/hard-float/jni/.
10 years ago
Restore -march flag for Android builds fixes #2419 - renewed discussion in #2112 suggests removal of the option was primarily aimed at non-Android builds
5 years ago
​
Support Android NDK armeabi-v7a-hard ABI. (-mfloat-abi=hard) e.g. make HOSTCC=gcc CC=arm-linux-androideabi-gcc NO_LAPACK=1 TARGET=ARMV7 In Android NDK, it uses armeabi-v7a-hard ABI. TARGET_CFLAGS += -mhard-float -D_NDK_MATH_NO_SOFTFP=1 TARGET_LDFLAGS += -Wl,--no-warn-mismatch -lm_hard For more information, please check hard-float example at android_ndk/tests/device/hard-float/jni/.
10 years ago
ARM soft fp abi branch.
10 years ago
​
Add cortex-a9 and cortex-a15 targets.
10 years ago
Support Android NDK armeabi-v7a-hard ABI. (-mfloat-abi=hard) e.g. make HOSTCC=gcc CC=arm-linux-androideabi-gcc NO_LAPACK=1 TARGET=ARMV7 In Android NDK, it uses armeabi-v7a-hard ABI. TARGET_CFLAGS += -mhard-float -D_NDK_MATH_NO_SOFTFP=1 TARGET_LDFLAGS += -Wl,--no-warn-mismatch -lm_hard For more information, please check hard-float example at android_ndk/tests/device/hard-float/jni/.
10 years ago
moved compiler flags from Makefile.rule to Makefile.arm
12 years ago
added cpu detection and target ARMV6, used in raspberry pi
12 years ago
Makefile.arm: remove -march flags The provided -march flags, especially for ARMv5 and ARMv6 may not necessarily match the needed ones: for ARMv5, it might be armv5, armv5te, armv5t, etc. If the wrong one is used, the incorrect toolchain sysroot can be used in a multilib toolchain. Therefore, let the user building OpenBLAS pass the appropriate -march flag. The other flags, such as -mfpu=vfp or -mfloat-abi=hard are kept, as they are actually required for the build to proceed (OpenBLAS uses VFP instructions, and assume an EABIhf ABI). [Peter: update for v0.2.20] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com> [Retrieved from: https://git.buildroot.net/buildroot/tree/package/openblas/0001-Makefile.arm-remove-march-flags.patch] Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
6 years ago
​
added ARMV5 as reference platform
11 years ago
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  1. ifeq ($(CORE), $(filter $(CORE),ARMV7 CORTEXA9 CORTEXA15))

  2. ifeq ($(OSNAME), Android)

  3. CCOMMON_OPT += -mfpu=neon -march=armv7-a

  4. FCOMMON_OPT += -mfpu=neon -march=armv7-a

  5. else

  6. CCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a

  7. FCOMMON_OPT += -mfpu=vfpv3 -march=armv7-a

  8. endif

  9. endif

  10. 

  11. ifeq ($(CORE), ARMV6)

  12. CCOMMON_OPT += -mfpu=vfp

  13. FCOMMON_OPT += -mfpu=vfp

  14. endif

OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.