| Index: build/config/arm.gni
|
| diff --git a/build/config/arm.gni b/build/config/arm.gni
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..8cbbf9a6e8b3fb659537b5da5b230a3902f66e9d
|
| --- /dev/null
|
| +++ b/build/config/arm.gni
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| @@ -0,0 +1,76 @@
|
| +# Copyright 2014 The Chromium Authors. All rights reserved.
|
| +# Use of this source code is governed by a BSD-style license that can be
|
| +# found in the LICENSE file.
|
| +
|
| +if (current_cpu == "arm" || current_cpu == "arm64") {
|
| + declare_args() {
|
| + # Version of the ARM processor when compiling on ARM. Ignored on non-ARM
|
| + # platforms.
|
| + if (current_cpu == "arm64") {
|
| + arm_version = 8
|
| + } else {
|
| + arm_version = 7
|
| + }
|
| +
|
| + # The ARM floating point mode. This is either the string "hard", "soft", or
|
| + # "softfp". An empty string means to use the default one for the
|
| + # arm_version.
|
| + arm_float_abi = ""
|
| +
|
| + # The ARM variant-specific tuning mode. This will be a string like "armv6"
|
| + # or "cortex-a15". An empty string means to use the default for the
|
| + # arm_version.
|
| + arm_tune = ""
|
| +
|
| + # Whether to use the neon FPU instruction set or not.
|
| + arm_use_neon = true
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| +
|
| + # Whether to enable optional NEON code paths.
|
| + arm_optionally_use_neon = false
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| +
|
| + if (is_android) {
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| + arm_use_neon = false
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| + arm_optionally_use_neon = true
|
| + }
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| +
|
| + if (is_ios) {
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| + arm_use_neon = false
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| + arm_optionally_use_neon = false
|
| + }
|
| + }
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| +
|
| + assert(arm_float_abi == "" || arm_float_abi == "hard" ||
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| + arm_float_abi == "soft" || arm_float_abi == "softfp")
|
| +
|
| + if (arm_version == 6) {
|
| + arm_arch = "armv6"
|
| + if (arm_tune != "") {
|
| + arm_tune = ""
|
| + }
|
| + if (arm_float_abi == "") {
|
| + arm_float_abi = "softfp"
|
| + }
|
| + arm_fpu = "vfp"
|
| +
|
| + # Thumb is a reduced instruction set available on some ARM processors that
|
| + # has increased code density.
|
| + arm_use_thumb = false
|
| + } else if (arm_version == 7) {
|
| + arm_arch = "armv7-a"
|
| + if (arm_tune == "") {
|
| + arm_tune = "generic-armv7-a"
|
| + }
|
| +
|
| + if (arm_float_abi == "") {
|
| + arm_float_abi = "softfp"
|
| + }
|
| +
|
| + arm_use_thumb = true
|
| +
|
| + if (arm_use_neon) {
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| + arm_fpu = "neon"
|
| + } else {
|
| + arm_fpu = "vfpv3-d16"
|
| + }
|
| + }
|
| +}
|
|
|