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01/01: gnu: webkitgtk: Fix build on i686.


From: guix-commits
Subject: 01/01: gnu: webkitgtk: Fix build on i686.
Date: Tue, 16 Apr 2019 17:45:28 -0400 (EDT)

mbakke pushed a commit to branch master
in repository guix.

commit e28ff04108ae7506a21d451cc23d63937076e2a3
Author: Marius Bakke <address@hidden>
Date:   Tue Apr 16 22:18:58 2019 +0200

    gnu: webkitgtk: Fix build on i686.
    
    Fixes <https://bugs.gnu.org/35232>.
    
    * gnu/packages/patches/webkitgtk-sse2.patch: New file.
    * gnu/local.mk (dist_patch_DATA): Add it.
    * gnu/packages/webkit.scm (webkitgtk-2.24)[source](patches): New field.
---
 gnu/local.mk                              |   1 +
 gnu/packages/patches/webkitgtk-sse2.patch | 202 ++++++++++++++++++++++++++++++
 gnu/packages/webkit.scm                   |   3 +-
 3 files changed, 205 insertions(+), 1 deletion(-)

diff --git a/gnu/local.mk b/gnu/local.mk
index e9111ba..41924a7 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1343,6 +1343,7 @@ dist_patch_DATA =                                         
\
   %D%/packages/patches/wavpack-CVE-2018-6767.patch             \
   %D%/packages/patches/wavpack-CVE-2018-7253.patch             \
   %D%/packages/patches/wavpack-CVE-2018-7254.patch             \
+  %D%/packages/patches/webkitgtk-sse2.patch                    \
   %D%/packages/patches/weechat-python.patch                    \
   %D%/packages/patches/wicd-bitrate-none-fix.patch             \
   %D%/packages/patches/wicd-get-selected-profile-fix.patch     \
diff --git a/gnu/packages/patches/webkitgtk-sse2.patch 
b/gnu/packages/patches/webkitgtk-sse2.patch
new file mode 100644
index 0000000..df70e38
--- /dev/null
+++ b/gnu/packages/patches/webkitgtk-sse2.patch
@@ -0,0 +1,202 @@
+Fix build on i686.
+
+This patch is taken from upstream, with ChangeLog entries omitted.
+
+From 5048338c5f21605441c6833907d1136ac9640b35 Mon Sep 17 00:00:00 2001
+From: "address@hidden"
+ <address@hidden@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
+Date: Wed, 10 Apr 2019 18:27:25 +0000
+Subject: [PATCH] Unreviewed, rolling out r243989.
+
+Broke i686 builds
+
+Reverted changeset:
+
+"[CMake] Detect SSE2 at compile time"
+https://bugs.webkit.org/show_bug.cgi?id=196488
+https://trac.webkit.org/changeset/243989
+
+git-svn-id: http://svn.webkit.org/repository/webkit/address@hidden 
268f45cc-cd09-0410-ab3c-d52691b4dbfc
+---
+ CMakeLists.txt                                | 10 ---
+ ChangeLog                                     | 12 ++++
+ Source/JavaScriptCore/ChangeLog               | 12 ++++
+ .../assembler/MacroAssemblerX86Common.cpp     |  7 ++
+ .../assembler/MacroAssemblerX86Common.h       | 30 +++++++++
+ Source/cmake/FindSSE2.cmake                   | 65 -------------------
+ 6 files changed, 61 insertions(+), 75 deletions(-)
+ delete mode 100644 Source/cmake/FindSSE2.cmake
+
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index acd77f4b623..d3e8a23f9ff 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -114,16 +114,6 @@ else ()
+     set(WTF_CPU_UNKNOWN 1)
+ endif ()
+ 
+-#---------------------------
+-# Make sure SSE2 is present.
+-#---------------------------
+-if (WTF_CPU_X86)
+-    include(FindSSE2)
+-    if (NOT SSE2_SUPPORT_FOUND)
+-        message(FATAL_ERROR "SSE2 support is required to compile WebKit")
+-    endif ()
+-endif ()
+-
+ # 
-----------------------------------------------------------------------------
+ # Determine the operating system
+ # 
-----------------------------------------------------------------------------
+diff --git a/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp 
b/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp
+index 8c752c0d030..31753589df7 100644
+--- a/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp
++++ b/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.cpp
+@@ -168,6 +168,11 @@ static_assert(PROBE_OFFSETOF_REG(cpu.fprs, 
X86Registers::xmm15) == PROBE_CPU_XMM
+ static_assert(sizeof(Probe::State) == PROBE_SIZE, "Probe::State::size's 
matches ctiMasmProbeTrampoline");
+ static_assert((PROBE_EXECUTOR_OFFSET + PTR_SIZE) <= (PROBE_SIZE + OUT_SIZE), 
"Must have room after ProbeContext to stash the probe handler");
+ 
++#if CPU(X86)
++// SSE2 is a hard requirement on x86.
++static_assert(isSSE2Present(), "SSE2 support is required in JavaScriptCore");
++#endif
++
+ #undef PROBE_OFFSETOF
+ 
+ #if CPU(X86)
+@@ -787,6 +792,7 @@ void MacroAssemblerX86Common::collectCPUFeatures()
+     std::call_once(onceKey, [] {
+         {
+             CPUID cpuid = getCPUID(0x1);
++            s_sse2CheckState = (cpuid[3] & (1 << 26)) ? CPUIDCheckState::Set 
: CPUIDCheckState::Clear;
+             s_sse4_1CheckState = (cpuid[2] & (1 << 19)) ? 
CPUIDCheckState::Set : CPUIDCheckState::Clear;
+             s_sse4_2CheckState = (cpuid[2] & (1 << 20)) ? 
CPUIDCheckState::Set : CPUIDCheckState::Clear;
+             s_popcntCheckState = (cpuid[2] & (1 << 23)) ? 
CPUIDCheckState::Set : CPUIDCheckState::Clear;
+@@ -803,6 +809,7 @@ void MacroAssemblerX86Common::collectCPUFeatures()
+     });
+ }
+ 
++MacroAssemblerX86Common::CPUIDCheckState 
MacroAssemblerX86Common::s_sse2CheckState = CPUIDCheckState::NotChecked;
+ MacroAssemblerX86Common::CPUIDCheckState 
MacroAssemblerX86Common::s_sse4_1CheckState = CPUIDCheckState::NotChecked;
+ MacroAssemblerX86Common::CPUIDCheckState 
MacroAssemblerX86Common::s_sse4_2CheckState = CPUIDCheckState::NotChecked;
+ MacroAssemblerX86Common::CPUIDCheckState 
MacroAssemblerX86Common::s_avxCheckState = CPUIDCheckState::NotChecked;
+diff --git a/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h 
b/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h
+index ff097290ef3..097bcb0bb86 100644
+--- a/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h
++++ b/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h
+@@ -4197,11 +4197,41 @@ private:
+     }
+ #endif
+ 
++#if CPU(X86)
++#if OS(MAC_OS_X)
++
++    // All X86 Macs are guaranteed to support at least SSE2,
++    static bool isSSE2Present()
++    {
++        return true;
++    }
++
++#else // OS(MAC_OS_X)
++    static bool isSSE2Present()
++    {
++        if (s_sse2CheckState == CPUIDCheckState::NotChecked)
++            collectCPUFeatures();
++        return s_sse2CheckState == CPUIDCheckState::Set;
++    }
++
++#endif // OS(MAC_OS_X)
++#elif !defined(NDEBUG) // CPU(X86)
++
++    // On x86-64 we should never be checking for SSE2 in a non-debug build,
++    // but non debug add this method to keep the asserts above happy.
++    static bool isSSE2Present()
++    {
++        return true;
++    }
++
++#endif
++
+     using CPUID = std::array<unsigned, 4>;
+     static CPUID getCPUID(unsigned level);
+     static CPUID getCPUIDEx(unsigned level, unsigned count);
+     JS_EXPORT_PRIVATE static void collectCPUFeatures();
+ 
++    JS_EXPORT_PRIVATE static CPUIDCheckState s_sse2CheckState;
+     JS_EXPORT_PRIVATE static CPUIDCheckState s_sse4_1CheckState;
+     JS_EXPORT_PRIVATE static CPUIDCheckState s_sse4_2CheckState;
+     JS_EXPORT_PRIVATE static CPUIDCheckState s_avxCheckState;
+diff --git a/Source/cmake/FindSSE2.cmake b/Source/cmake/FindSSE2.cmake
+deleted file mode 100644
+index 7a947feadd4..00000000000
+--- a/Source/cmake/FindSSE2.cmake
++++ /dev/null
+@@ -1,65 +0,0 @@
+-#################################
+-# Check for the presence of SSE2.
+-#
+-# Once done, this will define:
+-# - SSE2_SUPPORT_FOUND - the system supports (at least) SSE2.
+-#
+-# Copyright (c) 2014, Pablo Fernandez Alcantarilla, Jesus Nuevo
+-# Copyright (c) 2019, Igalia S.L.
+-#
+-# Redistribution and use in source and binary forms, with or without 
modification,
+-# are permitted provided that the following conditions are met:
+-#
+-#   * Redistributions of source code must retain the above copyright notice,
+-#     this list of conditions and the following disclaimer.
+-#
+-#   * Redistributions in binary form must reproduce the above copyright 
notice,
+-#     this list of conditions and the following disclaimer in the 
documentation
+-#     and/or other materials provided with the distribution.
+-#
+-#   * Neither the name of the copyright holders nor the names of its 
contributors
+-#     may be used to endorse or promote products derived from this software 
without
+-#     specific prior written permission.
+-#
+-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
AND ANY
+-# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES
+-# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 
NO EVENT
+-# SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
INDIRECT,
+-# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
NOT LIMITED
+-# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
PROFITS; OR
+-# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
WHETHER IN
+-# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
ARISING IN ANY
+-# WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 
SUCH DAMAGE.
+-
+-set(SSE2_SUPPORT_FOUND FALSE)
+-
+-macro(CHECK_FOR_SSE2)
+-    include(CheckCXXSourceRuns)
+-
+-    check_cxx_source_runs("
+-        #include <emmintrin.h>
+-        int main ()
+-        {
+-            __m128d a, b;
+-            double vals[2] = {0};
+-            a = _mm_loadu_pd (vals);
+-            b = _mm_add_pd (a,a);
+-            _mm_storeu_pd (vals,b);
+-            return(0);
+-        }"
+-        HAVE_SSE2_EXTENSIONS)
+-
+-    if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_COMPILER_IS_GNUCXX OR 
CMAKE_COMPILER_IS_CLANG)
+-        if (HAVE_SSE2_EXTENSIONS)
+-            set(SSE2_SUPPORT_FOUND TRUE)
+-        endif ()
+-    elseif (MSVC AND NOT CMAKE_CL_64)
+-        if (HAVE_SSE2_EXTENSIONS)
+-            set(SSE2_SUPPORT_FOUND TRUE)
+-            message(STATUS "Found SSE2 extensions.")
+-        endif (HAVE_SSE2_EXTENSIONS)
+-    endif ()
+-
+-endmacro(CHECK_FOR_SSE2)
+-
+-CHECK_FOR_SSE2()
+-- 
+2.21.0
+
diff --git a/gnu/packages/webkit.scm b/gnu/packages/webkit.scm
index c807585..ce69d0a 100644
--- a/gnu/packages/webkit.scm
+++ b/gnu/packages/webkit.scm
@@ -175,7 +175,8 @@ HTML/CSS applications to full-fledged web browsers.")
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "0v9riwrmwi9wxbb8hlvcbyyxa9zxhcdk6s1xcspalk6asam8xjsk"))))
+                "0v9riwrmwi9wxbb8hlvcbyyxa9zxhcdk6s1xcspalk6asam8xjsk"))
+              (patches (search-patches "webkitgtk-sse2.patch"))))
     (native-inputs
      `(("gcc" ,gcc-7)  ; webkitgtk-2.22 requires gcc-6 or newer
        ,@(package-native-inputs webkitgtk)))



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