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removed extra/gn

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Kevin Mihelich 2020-12-12 05:06:49 +00:00
parent 5b7489f6c8
commit 0f43b4090e
3 changed files with 0 additions and 264 deletions
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200
extra/gn/0001-Add-ARM-headers-back.patch
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@ -1,200 +0,0 @@
From 65fd24e06b2f1b559a7c788d5b90afacf9dba9a4 Mon Sep 17 00:00:00 2001
From: Kevin Mihelich <kevin@archlinuxarm.org>
Date: Sun, 12 Aug 2018 18:11:42 -0600
Subject: [PATCH] Add ARM headers back
---
base/numerics/safe_conversions_arm_impl.h | 51 +++++++++
base/numerics/safe_math_arm_impl.h | 122 ++++++++++++++++++++++
2 files changed, 173 insertions(+)
create mode 100644 base/numerics/safe_conversions_arm_impl.h
create mode 100644 base/numerics/safe_math_arm_impl.h
diff --git a/base/numerics/safe_conversions_arm_impl.h b/base/numerics/safe_conversions_arm_impl.h
new file mode 100644
index 00000000..da5813f6
--- /dev/null
+++ b/base/numerics/safe_conversions_arm_impl.h
@@ -0,0 +1,51 @@
+// Copyright 2017 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.
+
+#ifndef BASE_NUMERICS_SAFE_CONVERSIONS_ARM_IMPL_H_
+#define BASE_NUMERICS_SAFE_CONVERSIONS_ARM_IMPL_H_
+
+#include <cassert>
+#include <limits>
+#include <type_traits>
+
+#include "base/numerics/safe_conversions_impl.h"
+
+namespace base {
+namespace internal {
+
+// Fast saturation to a destination type.
+template <typename Dst, typename Src>
+struct SaturateFastAsmOp {
+ static const bool is_supported =
+ std::is_signed<Src>::value && std::is_integral<Dst>::value &&
+ std::is_integral<Src>::value &&
+ IntegerBitsPlusSign<Src>::value <= IntegerBitsPlusSign<int32_t>::value &&
+ IntegerBitsPlusSign<Dst>::value <= IntegerBitsPlusSign<int32_t>::value &&
+ !IsTypeInRangeForNumericType<Dst, Src>::value;
+
+ __attribute__((always_inline)) static Dst Do(Src value) {
+ int32_t src = value;
+ typename std::conditional<std::is_signed<Dst>::value, int32_t,
+ uint32_t>::type result;
+ if (std::is_signed<Dst>::value) {
+ asm("ssat %[dst], %[shift], %[src]"
+ : [dst] "=r"(result)
+ : [src] "r"(src), [shift] "n"(IntegerBitsPlusSign<Dst>::value <= 32
+ ? IntegerBitsPlusSign<Dst>::value
+ : 32));
+ } else {
+ asm("usat %[dst], %[shift], %[src]"
+ : [dst] "=r"(result)
+ : [src] "r"(src), [shift] "n"(IntegerBitsPlusSign<Dst>::value < 32
+ ? IntegerBitsPlusSign<Dst>::value
+ : 31));
+ }
+ return static_cast<Dst>(result);
+ }
+};
+
+} // namespace internal
+} // namespace base
+
+#endif // BASE_NUMERICS_SAFE_CONVERSIONS_ARM_IMPL_H_
diff --git a/base/numerics/safe_math_arm_impl.h b/base/numerics/safe_math_arm_impl.h
new file mode 100644
index 00000000..a7cda1bb
--- /dev/null
+++ b/base/numerics/safe_math_arm_impl.h
@@ -0,0 +1,122 @@
+// Copyright 2017 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.
+
+#ifndef BASE_NUMERICS_SAFE_MATH_ARM_IMPL_H_
+#define BASE_NUMERICS_SAFE_MATH_ARM_IMPL_H_
+
+#include <cassert>
+#include <limits>
+#include <type_traits>
+
+#include "base/numerics/safe_conversions.h"
+
+namespace base {
+namespace internal {
+
+template <typename T, typename U>
+struct CheckedMulFastAsmOp {
+ static const bool is_supported =
+ FastIntegerArithmeticPromotion<T, U>::is_contained;
+
+ // The following is much more efficient than the Clang and GCC builtins for
+ // performing overflow-checked multiplication when a twice wider type is
+ // available. The below compiles down to 2-3 instructions, depending on the
+ // width of the types in use.
+ // As an example, an int32_t multiply compiles to:
+ // smull r0, r1, r0, r1
+ // cmp r1, r1, asr #31
+ // And an int16_t multiply compiles to:
+ // smulbb r1, r1, r0
+ // asr r2, r1, #16
+ // cmp r2, r1, asr #15
+ template <typename V>
+ __attribute__((always_inline)) static bool Do(T x, U y, V* result) {
+ using Promotion = typename FastIntegerArithmeticPromotion<T, U>::type;
+ Promotion presult;
+
+ presult = static_cast<Promotion>(x) * static_cast<Promotion>(y);
+ *result = static_cast<V>(presult);
+ return IsValueInRangeForNumericType<V>(presult);
+ }
+};
+
+template <typename T, typename U>
+struct ClampedAddFastAsmOp {
+ static const bool is_supported =
+ BigEnoughPromotion<T, U>::is_contained &&
+ IsTypeInRangeForNumericType<
+ int32_t,
+ typename BigEnoughPromotion<T, U>::type>::value;
+
+ template <typename V>
+ __attribute__((always_inline)) static V Do(T x, U y) {
+ // This will get promoted to an int, so let the compiler do whatever is
+ // clever and rely on the saturated cast to bounds check.
+ if (IsIntegerArithmeticSafe<int, T, U>::value)
+ return saturated_cast<V>(x + y);
+
+ int32_t result;
+ int32_t x_i32 = x;
+ int32_t y_i32 = y;
+
+ asm("qadd %[result], %[first], %[second]"
+ : [result] "=r"(result)
+ : [first] "r"(x_i32), [second] "r"(y_i32));
+ return saturated_cast<V>(result);
+ }
+};
+
+template <typename T, typename U>
+struct ClampedSubFastAsmOp {
+ static const bool is_supported =
+ BigEnoughPromotion<T, U>::is_contained &&
+ IsTypeInRangeForNumericType<
+ int32_t,
+ typename BigEnoughPromotion<T, U>::type>::value;
+
+ template <typename V>
+ __attribute__((always_inline)) static V Do(T x, U y) {
+ // This will get promoted to an int, so let the compiler do whatever is
+ // clever and rely on the saturated cast to bounds check.
+ if (IsIntegerArithmeticSafe<int, T, U>::value)
+ return saturated_cast<V>(x - y);
+
+ int32_t result;
+ int32_t x_i32 = x;
+ int32_t y_i32 = y;
+
+ asm("qsub %[result], %[first], %[second]"
+ : [result] "=r"(result)
+ : [first] "r"(x_i32), [second] "r"(y_i32));
+ return saturated_cast<V>(result);
+ }
+};
+
+template <typename T, typename U>
+struct ClampedMulFastAsmOp {
+ static const bool is_supported = CheckedMulFastAsmOp<T, U>::is_supported;
+
+ template <typename V>
+ __attribute__((always_inline)) static V Do(T x, U y) {
+ // Use the CheckedMulFastAsmOp for full-width 32-bit values, because
+ // it's fewer instructions than promoting and then saturating.
+ if (!IsIntegerArithmeticSafe<int32_t, T, U>::value &&
+ !IsIntegerArithmeticSafe<uint32_t, T, U>::value) {
+ V result;
+ if (CheckedMulFastAsmOp<T, U>::Do(x, y, &result))
+ return result;
+ return CommonMaxOrMin<V>(IsValueNegative(x) ^ IsValueNegative(y));
+ }
+
+ assert((FastIntegerArithmeticPromotion<T, U>::is_contained));
+ using Promotion = typename FastIntegerArithmeticPromotion<T, U>::type;
+ return saturated_cast<V>(static_cast<Promotion>(x) *
+ static_cast<Promotion>(y));
+ }
+};
+
+} // namespace internal
+} // namespace base
+
+#endif // BASE_NUMERICS_SAFE_MATH_ARM_IMPL_H_
--
2.18.0

56
extra/gn/PKGBUILD
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@ -1,56 +0,0 @@
# Maintainer: Evangelos Foutras <evangelos@foutrelis.com>
# ALARM: Kevin Mihelich <kevin@archlinuxarm.org>
# - add ARM headers back that were removed upstream
buildarch=28
pkgname=gn
pkgver=0.1819.e327ffdc
_commit=e327ffdc503815916db2543ec000226a8df45163
pkgrel=2
pkgdesc="Meta-build system that generates build files for Ninja"
arch=('x86_64')
url="https://gn.googlesource.com/gn/"
license=('BSD')
depends=('gcc-libs')
makedepends=('clang' 'ninja' 'python' 'git')
source=(git+https://gn.googlesource.com/gn#commit=$_commit
0001-Add-ARM-headers-back.patch)
md5sums=('SKIP'
'9948af7a864a8e57697c49d15cdcb395')
pkgver() {
cd $pkgname
echo 0.$(git rev-list --count initial-commit..).$(git rev-parse --short HEAD)
}
prepare() {
cd $pkgname
patch -p1 -i ../0001-Add-ARM-headers-back.patch
}
build() {
cd $pkgname
./build/gen.py
ninja -C out
}
check() {
cd $pkgname
./out/gn_unittests
}
package() {
cd $pkgname
install -D out/gn "$pkgdir/usr/bin/gn"
install -Dm644 -t "$pkgdir/usr/share/doc/$pkgname" docs/*
install -Dm644 -t "$pkgdir/usr/share/licenses/$pkgname" LICENSE
mkdir -p "$pkgdir/usr/share/vim/vimfiles"
cp -r misc/vim/{autoload,ftdetect,ftplugin,syntax} \
"$pkgdir/usr/share/vim/vimfiles/"
install -Dm644 -t "$pkgdir/usr/share/emacs/site-lisp" misc/emacs/gn-mode.el
}
# vim:set ts=2 sw=2 et:

8
extra/gn/chromium-gn-version.sh
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@ -1,8 +0,0 @@
#!/bin/bash
set -eo pipefail
chromium_version=${1:-$(curl -s https://omahaproxy.appspot.com/linux)}
curl -s https://chromium.googlesource.com/chromium/src/+/$chromium_version/DEPS?format=TEXT |
base64 -d | grep -Po "'gn_version': 'git_revision:\K[^']*"