Remove Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch.

It seems that causes crashes in an hardware-dependant fashion
(Closes: #685524).

3 files changed, 2 insertions, 282 deletions

diff --git a/debian/changelog b/debian/changelog
index 5ef17f6..b543448 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,6 +1,7 @@
 qt4-x11 (4:4.8.2+dfsg-2) UNRELEASED; urgency=low
 
-
+  * Remove Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch. It seems
+    that causes crashes in an hardware-dependant fashion (Closes: #685524).
 
  -- Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>  Mon, 27 Aug 2012 17:22:53 -0300
 
diff --git a/debian/patches/Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch b/debian/patches/Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch
deleted file mode 100644
index ac86a84..0000000
--- a/debian/patches/Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch
+++ /dev/null
@@ -1,280 +0,0 @@
-Description: Fix JIT crash on x86-64 (avoid 32-bit branch offset overflow)
- .
- Cherry-picked from webkit commit
- a5b3261a8c4386b4e14ce40a34c7fc933a5f7001
-Origin: commit ada98493bbfbd9af0d0b593017e29d39bcd3495e
-Author: Kent Hansen <kent.hansen@nokia.com>
-Forwarded: not-needed
-Applied-Upstream: yes
-Reviewed-by: Simon Hausmann <simon.hausmann@nokia.com>
-Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
----
- .../javascriptcore/JavaScriptCore/ChangeLog        |   27 +++++++++++++++++
- .../JavaScriptCore/JavaScriptCore.pri              |    1 +
- .../JavaScriptCore/jit/ExecutableAllocator.cpp     |   21 +++++++++++++
- .../jit/ExecutableAllocatorFixedVMPool.cpp         |   31 +++++++++++++-------
- .../jit/ExecutableAllocatorPosix.cpp               |   29 ++----------------
- .../jit/ExecutableAllocatorSymbian.cpp             |    2 +-
- .../JavaScriptCore/jit/ExecutableAllocatorWin.cpp  |    2 +-
- .../javascriptcore/JavaScriptCore/wtf/Platform.h   |   10 +++++++
- 8 files changed, 84 insertions(+), 39 deletions(-)
-
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/ChangeLog b/src/3rdparty/javascriptcore/JavaScriptCore/ChangeLog
-index 9cbf0c1..5ab23e6 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/ChangeLog
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/ChangeLog
-@@ -1,3 +1,30 @@
-+2010-07-08  Gavin Barraclough  <barraclough@apple.com>
-+
-+        Reviewed by Sam Weinig.
-+
-+        https://bugs.webkit.org/show_bug.cgi?id=41641
-+
-+        Update compile flags to allow use of ExecutableAllocatorFixedVMPool on platforms
-+        other than x86-64 (this may be useful on 32-bit platforms, too).
-+
-+        Simplify ifdefs by dividing into thwo broad allocation strategies
-+        (ENABLE_EXECUTABLE_ALLOCATOR_FIXED & ENABLE_EXECUTABLE_ALLOCATOR_DEMAND).
-+
-+        Rename constant used in the code to have names descriptive of their purpose,
-+        rather than their specific value on a given platform.
-+
-+        * jit/ExecutableAllocator.cpp:
-+        (JSC::ExecutableAllocator::reprotectRegion):
-+        (JSC::ExecutableAllocator::cacheFlush):
-+        * jit/ExecutableAllocatorFixedVMPool.cpp:
-+        (JSC::FixedVMPoolAllocator::FixedVMPoolAllocator):
-+        (JSC::FixedVMPoolAllocator::free):
-+        (JSC::ExecutablePool::systemAlloc):
-+        * jit/ExecutableAllocatorPosix.cpp:
-+        * jit/ExecutableAllocatorSymbian.cpp:
-+        * jit/ExecutableAllocatorWin.cpp:
-+        * wtf/Platform.h:
-+
- 2010-08-24  Oliver Hunt  <oliver@apple.com>
- 
-         Reviewed by Geoff Garen.
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/JavaScriptCore.pri b/src/3rdparty/javascriptcore/JavaScriptCore/JavaScriptCore.pri
-index b061321..847f69c 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/JavaScriptCore.pri
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/JavaScriptCore.pri
-@@ -100,6 +100,7 @@ SOURCES += \
-     interpreter/CallFrame.cpp \
-     interpreter/Interpreter.cpp \
-     interpreter/RegisterFile.cpp \
-+    jit/ExecutableAllocatorFixedVMPool.cpp \
-     jit/ExecutableAllocatorPosix.cpp \
-     jit/ExecutableAllocatorSymbian.cpp \
-     jit/ExecutableAllocatorWin.cpp \
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.cpp
-index f6b27ec..f0ebbab 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.cpp
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocator.cpp
-@@ -33,6 +33,27 @@ namespace JSC {
- 
- size_t ExecutableAllocator::pageSize = 0;
- 
-+#if ENABLE(ASSEMBLER_WX_EXCLUSIVE)
-+void ExecutableAllocator::reprotectRegion(void* start, size_t size, ProtectionSeting setting)
-+{
-+    if (!pageSize)
-+        intializePageSize();
-+
-+    // Calculate the start of the page containing this region,
-+    // and account for this extra memory within size.
-+    intptr_t startPtr = reinterpret_cast<intptr_t>(start);
-+    intptr_t pageStartPtr = startPtr & ~(pageSize - 1);
-+    void* pageStart = reinterpret_cast<void*>(pageStartPtr);
-+    size += (startPtr - pageStartPtr);
-+
-+    // Round size up
-+    size += (pageSize - 1);
-+    size &= ~(pageSize - 1);
-+
-+    mprotect(pageStart, size, (setting == Writable) ? PROTECTION_FLAGS_RW : PROTECTION_FLAGS_RX);
-+}
-+#endif
-+
- }
- 
- #endif // HAVE(ASSEMBLER)
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp
-index dd1db4e..16d0fb1 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorFixedVMPool.cpp
-@@ -27,25 +27,33 @@
- 
- #include "ExecutableAllocator.h"
- 
--#include <errno.h>
-+#if ENABLE(EXECUTABLE_ALLOCATOR_FIXED)
- 
--#if ENABLE(ASSEMBLER) && OS(DARWIN) && CPU(X86_64)
-+#include <errno.h>
- 
- #include "TCSpinLock.h"
--#include <mach/mach_init.h>
--#include <mach/vm_map.h>
- #include <sys/mman.h>
- #include <unistd.h>
- #include <wtf/AVLTree.h>
- #include <wtf/VMTags.h>
- 
-+#if CPU(X86_64)
-+    // These limits suitable on 64-bit platforms (particularly x86-64, where we require all jumps to have a 2Gb max range).
-+    #define VM_POOL_SIZE (2u * 1024u * 1024u * 1024u) // 2Gb
-+    #define COALESCE_LIMIT (16u * 1024u * 1024u) // 16Mb
-+#else
-+    // These limits are hopefully sensible on embedded platforms.
-+    #define VM_POOL_SIZE (32u * 1024u * 1024u) // 32Mb
-+    #define COALESCE_LIMIT (4u * 1024u * 1024u) // 4Mb
-+#endif
-+
-+// ASLR currently only works on darwin (due to arc4random) & 64-bit (due to address space size).
-+#define VM_POOL_ASLR (OS(DARWIN) && CPU(X86_64))
-+
- using namespace WTF;
- 
- namespace JSC {
- 
--#define TWO_GB (2u * 1024u * 1024u * 1024u)
--#define SIXTEEN_MB (16u * 1024u * 1024u)
--
- // FreeListEntry describes a free chunk of memory, stored in the freeList.
- struct FreeListEntry {
-     FreeListEntry(void* pointer, size_t size)
-@@ -291,9 +299,12 @@ public:
-         // for now instead of 2^26 bits of ASLR lets stick with 25 bits of randomization plus
-         // 2^24, which should put up somewhere in the middle of usespace (in the address range
-         // 0x200000000000 .. 0x5fffffffffff).
--        intptr_t randomLocation = arc4random() & ((1 << 25) - 1);
-+        intptr_t randomLocation = 0;
-+#if VM_POOL_ASLR
-+        randomLocation = arc4random() & ((1 << 25) - 1);
-         randomLocation += (1 << 24);
-         randomLocation <<= 21;
-+#endif
-         m_base = mmap(reinterpret_cast<void*>(randomLocation), m_totalHeapSize, INITIAL_PROTECTION_FLAGS, MAP_PRIVATE | MAP_ANON, VM_TAG_FOR_EXECUTABLEALLOCATOR_MEMORY, 0);
-         if (!m_base)
-             CRASH();
-@@ -387,7 +398,7 @@ public:
-         // 16MB of allocations have been freed, sweep m_freeList
-         // coalescing any neighboring fragments.
-         m_countFreedSinceLastCoalesce += size;
--        if (m_countFreedSinceLastCoalesce >= SIXTEEN_MB) {
-+        if (m_countFreedSinceLastCoalesce >= COALESCE_LIMIT) {
-             m_countFreedSinceLastCoalesce = 0;
-             coalesceFreeSpace();
-         }
-@@ -429,7 +440,7 @@ ExecutablePool::Allocation ExecutablePool::systemAlloc(size_t size)
-   SpinLockHolder lock_holder(&spinlock);
- 
-     if (!allocator)
--        allocator = new FixedVMPoolAllocator(JIT_ALLOCATOR_LARGE_ALLOC_SIZE, TWO_GB);
-+        allocator = new FixedVMPoolAllocator(JIT_ALLOCATOR_LARGE_ALLOC_SIZE, VM_POOL_SIZE);
-     ExecutablePool::Allocation alloc = {reinterpret_cast<char*>(allocator->alloc(size)), size};
-     return alloc;
- }
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp
-index 2eb0c87..b04049c 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorPosix.cpp
-@@ -27,7 +27,7 @@
- 
- #include "ExecutableAllocator.h"
- 
--#if ENABLE(ASSEMBLER) && OS(UNIX) && !OS(SYMBIAN)
-+#if ENABLE(EXECUTABLE_ALLOCATOR_DEMAND) && !OS(WINDOWS) && !OS(SYMBIAN)
- 
- #include <sys/mman.h>
- #include <unistd.h>
-@@ -35,8 +35,6 @@
- 
- namespace JSC {
- 
--#if !(OS(DARWIN) && !PLATFORM(QT) && CPU(X86_64))
--
- void ExecutableAllocator::intializePageSize()
- {
-     ExecutableAllocator::pageSize = getpagesize();
-@@ -57,29 +55,6 @@ void ExecutablePool::systemRelease(const ExecutablePool::Allocation& alloc)
-     ASSERT_UNUSED(result, !result);
- }
- 
--#endif // !(OS(DARWIN) && !PLATFORM(QT) && CPU(X86_64))
--
--#if ENABLE(ASSEMBLER_WX_EXCLUSIVE)
--void ExecutableAllocator::reprotectRegion(void* start, size_t size, ProtectionSeting setting)
--{
--    if (!pageSize)
--        intializePageSize();
--
--    // Calculate the start of the page containing this region,
--    // and account for this extra memory within size.
--    intptr_t startPtr = reinterpret_cast<intptr_t>(start);
--    intptr_t pageStartPtr = startPtr & ~(pageSize - 1);
--    void* pageStart = reinterpret_cast<void*>(pageStartPtr);
--    size += (startPtr - pageStartPtr);
--
--    // Round size up
--    size += (pageSize - 1);
--    size &= ~(pageSize - 1);
--
--    mprotect(pageStart, size, (setting == Writable) ? PROTECTION_FLAGS_RW : PROTECTION_FLAGS_RX);
--}
--#endif
--
- }
- 
--#endif // HAVE(ASSEMBLER)
-+#endif
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorSymbian.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorSymbian.cpp
-index e82975c..9028f50 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorSymbian.cpp
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorSymbian.cpp
-@@ -22,7 +22,7 @@
- 
- #include "ExecutableAllocator.h"
- 
--#if ENABLE(ASSEMBLER) && OS(SYMBIAN)
-+#if ENABLE(EXECUTABLE_ALLOCATOR_DEMAND) && OS(SYMBIAN)
- 
- #include <e32hal.h>
- #include <e32std.h>
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorWin.cpp b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorWin.cpp
-index e38323c..72a1d5f 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorWin.cpp
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/jit/ExecutableAllocatorWin.cpp
-@@ -27,7 +27,7 @@
- 
- #include "ExecutableAllocator.h"
- 
--#if ENABLE(ASSEMBLER) && OS(WINDOWS)
-+#if ENABLE(EXECUTABLE_ALLOCATOR_DEMAND) && OS(WINDOWS)
- 
- #include "windows.h"
- 
-diff --git a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h
-index 700977e..d930ed7 100644
---- a/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h
-+++ b/src/3rdparty/javascriptcore/JavaScriptCore/wtf/Platform.h
-@@ -1016,6 +1016,16 @@ on MinGW. See https://bugs.webkit.org/show_bug.cgi?id=29268 */
- #define ENABLE_ASSEMBLER_WX_EXCLUSIVE 0
- #endif
- 
-+/* Pick which allocator to use; we only need an executable allocator if the assembler is compiled in.
-+   On x86-64 we use a single fixed mmap, on other platforms we mmap on demand. */
-+#if ENABLE(ASSEMBLER)
-+#if CPU(X86_64)
-+#define ENABLE_EXECUTABLE_ALLOCATOR_FIXED 1
-+#else
-+#define ENABLE_EXECUTABLE_ALLOCATOR_DEMAND 1
-+#endif
-+#endif
-+
- #if !defined(ENABLE_PAN_SCROLLING) && OS(WINDOWS)
- #define ENABLE_PAN_SCROLLING 1
- #endif
--- 
-1.7.10.4
-
diff --git a/debian/patches/series b/debian/patches/series
index b7ab26d..5522a5c 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -4,7 +4,6 @@ QTBUG-14724_close_orphaned_file_descriptors_after_printing.patch
 QTBUG-21900_Buttons_in_Qt_applications_not_clickable_when_run_under_gnome-shell.patch
 QElfParser-fix-type-of-sh_size.patch
 Fix-cursor-truncate-to-include-line-position.patch
-Fix-JIT-crash-on-x86-64-avoid-32-bit-branch-offset-o.patch
 
 # qt-copy patches
 0195-compositing-properties.diff