[Minios-devel] [UNIKRAFT PATCH 11/13] arch/arm64: Add processor optimization GCC flags for arm64

[Wei Chen <Wei.Chen@xxxxxxx>]

We added serval arm64 CPU models in support list. In this patch,
we check the GCC version and add optimization GCC flags for
selected processor.

Current supported arm64 CPU models:
native, generic, cortex-a53, cortex-a57, cortex-a72, cortex-a73,
cortex-a55 and cortex-a75.

Signed-off-by: Wei Chen <Wei.Chen@xxxxxxx>
---
 arch/arm/arm64/Compiler.uk |  6 ++++++
 arch/arm/arm64/Makefile.uk | 27 +++++++++++++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 arch/arm/arm64/Compiler.uk
 create mode 100644 arch/arm/arm64/Makefile.uk

diff --git a/arch/arm/arm64/Compiler.uk b/arch/arm/arm64/Compiler.uk
new file mode 100644
index 0000000..854d153
--- /dev/null
+++ b/arch/arm/arm64/Compiler.uk
@@ -0,0 +1,6 @@
+# set cross compile
+ifeq ($(CROSS_COMPILE),)
+ifneq ($(UK_ARCH),$(HOSTARCH))
+       CROSS_COMPILE := aarch64-linux-gnu-
+endif
+endif
diff --git a/arch/arm/arm64/Makefile.uk b/arch/arm/arm64/Makefile.uk
new file mode 100644
index 0000000..44ada5f
--- /dev/null
+++ b/arch/arm/arm64/Makefile.uk
@@ -0,0 +1,27 @@
+ASFLAGS  += -D__ARM_64__
+CFLAGS   += -D__ARM_64__ -fms-extensions
+CXXFLAGS += -D__ARM_64__ -fms-extensions
+
+# GCC support -mcpu=native for arm64 from 6.0
+$(eval $(call set_flags_for_valid_gcc,$(MARCH_ARM64_NATIVE),6,0,-mcpu=native))
+
+# GCC support -mcpu=generic for arm64 from 4.8
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_GENERIC),4,8,-march=armv8-a -mcpu=generic 
-mtune=generic))
+
+# GCC support -mcpu=cortex-a53 for arm64 from 4.9
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA53),4,9,-march=armv8-a 
-mcpu=cortex-a53 -mtune=cortex-a53))
+
+# GCC support -mcpu=cortex-a57 for arm64 from 4.9
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA57),4,9,-march=armv8-a 
-mcpu=cortex-a57 -mtune=cortex-a57))
+
+# GCC support -mcpu=cortex-a72 for arm64 from 5.0
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA72),5,0,-march=armv8-a 
-mcpu=cortex-a72 -mtune=cortex-a72))
+
+# GCC support -mcpu=cortex-a73 for arm64 from 7.0
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA73),7,0,-march=armv8-a 
-mcpu=cortex-a73 -mtune=cortex-a73))
+
+# GCC support -mcpu=cortex-a55 for arm64 from 8.0
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA55),8,0,-march=armv8.2-a 
-mcpu=cortex-a55 -mtune=cortex-a55))
+
+# GCC support -mcpu=cortex-a75 for arm64 from 8.0
+$(eval $(call 
set_flags_for_valid_gcc,$(MARCH_ARM64_CORTEXA75),8,0,-march=armv8.2-a 
-mcpu=cortex-a75 -mtune=cortex-a75))
-- 
2.7.4


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