Revert "gentoo resync : 24.03.2019"

This reverts commit aa3411e241a201d53a2689766fe419f2756819f3.

4 files changed, 322 insertions, 48 deletions

diff --git a/dev-util/gn/files/gn-gen-r0.patch b/dev-util/gn/files/gn-gen-r0.patch
new file mode 100644
index 000000000000..d30af3ab4ac6
--- /dev/null
+++ b/dev-util/gn/files/gn-gen-r0.patch
@@ -0,0 +1,51 @@
+diff --git a/build/gen.py b/build/gen.py
+index fce8fb18..2927da5f 100755
+--- a/build/gen.py
++++ b/build/gen.py
+@@ -260,17 +260,12 @@ def WriteGNNinja(path, options, linux_sysroot):
+     if options.debug:
+       cflags.extend(['-O0', '-g'])
+     else:
+-      cflags.append('-DNDEBUG')
+-      cflags.append('-O3')
+-      ldflags.append('-O3')
+       # Use -fdata-sections and -ffunction-sections to place each function
+       # or data item into its own section so --gc-sections can eliminate any
+       # unused functions and data items.
+       cflags.extend(['-fdata-sections', '-ffunction-sections'])
+       ldflags.extend(['-fdata-sections', '-ffunction-sections'])
+       ldflags.append('-Wl,-dead_strip' if is_mac else '-Wl,--gc-sections')
+-      # Omit all symbol information from the output file.
+-      ldflags.append('-Wl,-S' if is_mac else '-Wl,-strip-all')
+       # Enable identical code-folding.
+       if options.use_icf:
+         ldflags.append('-Wl,--icf=all')
+@@ -279,11 +274,11 @@ def WriteGNNinja(path, options, linux_sysroot):
+         '-D_FILE_OFFSET_BITS=64',
+         '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS',
+         '-pthread',
+-        '-pipe',
+         '-fno-exceptions',
+         '-fno-rtti',
+     ])
+     cflags_cc.extend(['-std=c++14', '-Wno-c++11-narrowing'])
++    ldflags.append('-pthread')
+ 
+     if is_linux:
+       if linux_sysroot:
+@@ -293,15 +288,6 @@ def WriteGNNinja(path, options, linux_sysroot):
+         # probably resolve this and (re-)add a way to build against libc++.
+         cflags.append('--sysroot=' + linux_sysroot)
+         ldflags.append('--sysroot=' + linux_sysroot)
+-      cflags.append('-stdlib=libstdc++')
+-      ldflags.extend(['-static-libstdc++',
+-                      '-stdlib=libstdc++',
+-                      '-Wl,--as-needed',
+-                     ])
+-      libs.extend([
+-          '-lgcc_s',
+-          '-lpthread',
+-      ])
+     elif is_mac:
+       min_mac_version_flag = '-mmacosx-version-min=10.9'
+       cflags.append(min_mac_version_flag)
diff --git a/dev-util/gn/files/gn-gen-r2.patch b/dev-util/gn/files/gn-gen-r2.patch
new file mode 100644
index 000000000000..701a317bf023
--- /dev/null
+++ b/dev-util/gn/files/gn-gen-r2.patch
@@ -0,0 +1,70 @@
+From 00e907811ea7fc56de73ad44903946a9179b1c4f Mon Sep 17 00:00:00 2001
+From: Mike Gilbert <floppym@gentoo.org>
+Date: Sun, 14 Oct 2018 20:34:07 -0400
+Subject: [PATCH] Remove unwanted cflags/ldflags parameters
+
+---
+ build/gen.py | 19 +------------------
+ 1 file changed, 1 insertion(+), 18 deletions(-)
+
+diff --git a/build/gen.py b/build/gen.py
+index 11c92460..b186e3b0 100755
+--- a/build/gen.py
++++ b/build/gen.py
+@@ -326,9 +326,6 @@ def WriteGNNinja(path, platform, host, options, linux_sysroot):
+     if options.debug:
+       cflags.extend(['-O0', '-g'])
+     else:
+-      cflags.append('-DNDEBUG')
+-      cflags.append('-O3')
+-      ldflags.append('-O3')
+       # Use -fdata-sections and -ffunction-sections to place each function
+       # or data item into its own section so --gc-sections can eliminate any
+       # unused functions and data items.
+@@ -340,14 +337,6 @@ def WriteGNNinja(path, platform, host, options, linux_sysroot):
+         # Garbage collection is done by default on aix.
+         ldflags.append('-Wl,--gc-sections')
+ 
+-      # Omit all symbol information from the output file.
+-      if platform.is_darwin():
+-        ldflags.append('-Wl,-S')
+-      elif platform.is_aix():
+-        ldflags.append('-Wl,-s')
+-      else:
+-        ldflags.append('-Wl,-strip-all')
+-
+       # Enable identical code-folding.
+       if options.use_icf:
+         ldflags.append('-Wl,--icf=all')
+@@ -356,12 +345,12 @@ def WriteGNNinja(path, platform, host, options, linux_sysroot):
+         '-D_FILE_OFFSET_BITS=64',
+         '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS',
+         '-pthread',
+-        '-pipe',
+         '-fno-exceptions',
+         '-fno-rtti',
+         '-fdiagnostics-color',
+     ])
+     cflags_cc.extend(['-std=c++14', '-Wno-c++11-narrowing'])
++    ldflags.extend(['-pthread'])
+ 
+     if platform.is_linux():
+       if linux_sysroot:
+@@ -369,14 +358,8 @@ def WriteGNNinja(path, platform, host, options, linux_sysroot):
+         cflags.append('--sysroot=' + linux_sysroot)
+         ldflags.append('--sysroot=' + linux_sysroot)
+       ldflags.extend([
+-          '-static-libstdc++',
+           '-Wl,--as-needed',
+       ])
+-      libs.extend([
+-          # These are needed by libc++.
+-          '-ldl',
+-          '-lpthread',
+-      ])
+     elif platform.is_darwin():
+       min_mac_version_flag = '-mmacosx-version-min=10.9'
+       cflags.append(min_mac_version_flag)
+-- 
+2.19.1
+
diff --git a/dev-util/gn/files/gn-gen-r3.patch b/dev-util/gn/files/gn-gen-r3.patch
deleted file mode 100644
index 362a6854a264..000000000000
--- a/dev-util/gn/files/gn-gen-r3.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From bedf2161dea8cf4813fd14891feee2e8e8d5bf28 Mon Sep 17 00:00:00 2001
-From: Mike Gilbert <floppym@gentoo.org>
-Date: Sun, 14 Oct 2018 20:34:07 -0400
-Subject: [PATCH] Remove unwanted cflags/ldflags parameters
-
----
- build/gen.py | 9 ---------
- 1 file changed, 9 deletions(-)
-
-diff --git a/build/gen.py b/build/gen.py
-index a7142fab..06d5e2b3 100755
---- a/build/gen.py
-+++ b/build/gen.py
-@@ -278,11 +278,6 @@ def WriteGNNinja(path, platform, host, options):
-     if options.debug:
-       cflags.extend(['-O0', '-g'])
-     else:
--      cflags.append('-DNDEBUG')
--      cflags.append('-O3')
--      if options.no_strip:
--        cflags.append('-g')
--      ldflags.append('-O3')
-       # Use -fdata-sections and -ffunction-sections to place each function
-       # or data item into its own section so --gc-sections can eliminate any
-       # unused functions and data items.
-@@ -311,7 +306,6 @@ def WriteGNNinja(path, platform, host, options):
-         '-D_FILE_OFFSET_BITS=64',
-         '-D__STDC_CONSTANT_MACROS', '-D__STDC_FORMAT_MACROS',
-         '-pthread',
--        '-pipe',
-         '-fno-exceptions',
-         '-fno-rtti',
-         '-fdiagnostics-color',
-@@ -320,11 +314,8 @@ def WriteGNNinja(path, platform, host, options):
- 
-     if platform.is_linux():
-       ldflags.extend([
--          '-static-libstdc++',
-           '-Wl,--as-needed',
-       ])
--      # This is needed by libc++.
--      libs.append('-ldl')
-     elif platform.is_darwin():
-       min_mac_version_flag = '-mmacosx-version-min=10.9'
-       cflags.append(min_mac_version_flag)
--- 
-2.21.0
-
diff --git a/dev-util/gn/files/gn-numerics-arm.patch b/dev-util/gn/files/gn-numerics-arm.patch
new file mode 100644
index 000000000000..f822cdb40852
--- /dev/null
+++ b/dev-util/gn/files/gn-numerics-arm.patch
@@ -0,0 +1,201 @@
+From 8952cb06749d4bd390991878281bc7e72a6eef2c Mon Sep 17 00:00:00 2001
+From: Mike Gilbert <floppymaster@gmail.com>
+Date: Mon, 10 Dec 2018 10:27:20 -0500
+Subject: [PATCH] Add missing headers for ARM
+
+Bug: https://bugs.gentoo.org/672862
+---
+ 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_
+-- 
+2.20.0.rc2
+