commit 95f6f9b48eef6afc042abfe184f4a636f891298e
author Jake Weinstein <xboxlover360@gmail.com> Thu Apr 06 22:08:26 2017 -0400
committer Jackeagle <jackeagle102@gmail.com> Sat Sep 30 09:59:50 2017 -0400
tree f122d2f0d8386b98b842066657d6795b78c8807d
parent bd06d5389bbcdcd858d1f6cb4a3734f10adee053

soong: use optimal FPU for Cortex-A53 and Cortex-A53.A57

* Both CPUs support ARMv8 instructions and Advanced SIMD

Test: make otapackage
Change-Id: Ib552044e549c50165492d53c76bff47c1c522d10

cc/config/arm_device.go

diff --git a/cc/config/arm_device.go b/cc/config/arm_device.go
index 773d1ae..87acd76 100644
--- a/cc/config/arm_device.go
+++ b/cc/config/arm_device.go
@@ -127,6 +127,15 @@
 			// better solution comes around. See Bug 27340895
 			"-D__ARM_FEATURE_LPAE=1",
 		},
+		"cortex-a53": []string{
+			"-mcpu=cortex-a7",
+			"-mfpu=neon-fp-armv8",
+			// Fake an ARM compiler flag as these processors support LPAE which GCC/clang
+			// don't advertise.
+			// TODO This is a hack and we need to add it for each processor that supports LPAE until some
+			// better solution comes around. See Bug 27340895
+			"-D__ARM_FEATURE_LPAE=1",
+		},
 		"krait": []string{
 			"-mcpu=cortex-a15",
 			"-mfpu=neon-vfpv4",
@@ -207,6 +216,7 @@
 	pctx.StaticVariable("ArmCortexA7Cflags", strings.Join(armCpuVariantCflags["cortex-a7"], " "))
 	pctx.StaticVariable("ArmCortexA8Cflags", strings.Join(armCpuVariantCflags["cortex-a8"], " "))
 	pctx.StaticVariable("ArmCortexA15Cflags", strings.Join(armCpuVariantCflags["cortex-a15"], " "))
+	pctx.StaticVariable("ArmCortexA53Cflags", strings.Join(armCpuVariantCflags["cortex-a53"], " "))
 	pctx.StaticVariable("ArmKraitCflags", strings.Join(armCpuVariantCflags["krait"], " "))
 	pctx.StaticVariable("ArmKryoCflags", strings.Join(armCpuVariantCflags["kryo"], " "))
 
@@ -237,6 +247,8 @@
 		strings.Join(armClangCpuVariantCflags["cortex-a8"], " "))
 	pctx.StaticVariable("ArmClangCortexA15Cflags",
 		strings.Join(armClangCpuVariantCflags["cortex-a15"], " "))
+	pctx.StaticVariable("ArmClangCortexA53Cflags",
+		strings.Join(armClangCpuVariantCflags["cortex-a53"], " "))
 	pctx.StaticVariable("ArmClangKraitCflags",
 		strings.Join(armClangCpuVariantCflags["krait"], " "))
 	pctx.StaticVariable("ArmClangKryoCflags",
@@ -255,8 +267,8 @@
 		"cortex-a7":      "${config.ArmCortexA7Cflags}",
 		"cortex-a8":      "${config.ArmCortexA8Cflags}",
 		"cortex-a15":     "${config.ArmCortexA15Cflags}",
-		"cortex-a53":     "${config.ArmCortexA7Cflags}",
-		"cortex-a53.a57": "${config.ArmCortexA7Cflags}",
+		"cortex-a53":     "${config.ArmCortexA53Cflags}",
+		"cortex-a53.a57": "${config.ArmCortexA53Cflags}",
 		"krait":          "${config.ArmKraitCflags}",
 		"kryo":           "${config.ArmKryoCflags}",
 		"denver":         "${config.ArmCortexA15Cflags}",
@@ -273,8 +285,8 @@
 		"cortex-a7":      "${config.ArmClangCortexA7Cflags}",
 		"cortex-a8":      "${config.ArmClangCortexA8Cflags}",
 		"cortex-a15":     "${config.ArmClangCortexA15Cflags}",
-		"cortex-a53":     "${config.ArmClangCortexA7Cflags}",
-		"cortex-a53.a57": "${config.ArmClangCortexA7Cflags}",
+		"cortex-a53":     "${config.ArmClangCortexA53Cflags}",
+		"cortex-a53.a57": "${config.ArmClangCortexA53Cflags}",
 		"krait":          "${config.ArmClangKraitCflags}",
 		"kryo":           "${config.ArmClangKryoCflags}",
 		"denver":         "${config.ArmClangCortexA15Cflags}",