--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mozilla-ppc-ipc.patch Tue May 03 13:23:01 2011 +0200
@@ -0,0 +1,222 @@
+# HG changeset patch
+# Parent f6996f95c7f8007fd7bf759092488ead6843441a
+Bug 587188 - Failed to build firefox from trunk on PPC
+
+diff --git a/ipc/chromium/Makefile.in b/ipc/chromium/Makefile.in
+--- a/ipc/chromium/Makefile.in
++++ b/ipc/chromium/Makefile.in
+@@ -241,17 +241,16 @@ CPPSRCS += \
+
+ endif # } OS_MACOSX
+
+ ifdef OS_LINUX # {
+
+ CPPSRCS += \
+ atomicops_internals_x86_gcc.cc \
+ base_paths_linux.cc \
+- data_pack.cc \
+ file_util_linux.cc \
+ file_version_info_linux.cc \
+ idle_timer_none.cc \
+ process_util_linux.cc \
+ time_posix.cc \
+ $(NULL)
+
+ ifdef MOZ_ENABLE_GTK2
+diff --git a/ipc/chromium/src/base/atomicops.h b/ipc/chromium/src/base/atomicops.h
+--- a/ipc/chromium/src/base/atomicops.h
++++ b/ipc/chromium/src/base/atomicops.h
+@@ -127,13 +127,15 @@ Atomic64 Release_Load(volatile const Ato
+ #if defined(OS_WIN) && defined(COMPILER_MSVC) && defined(ARCH_CPU_X86_FAMILY)
+ #include "base/atomicops_internals_x86_msvc.h"
+ #elif defined(OS_MACOSX) && defined(ARCH_CPU_X86_FAMILY)
+ #include "base/atomicops_internals_x86_macosx.h"
+ #elif defined(COMPILER_GCC) && defined(ARCH_CPU_X86_FAMILY)
+ #include "base/atomicops_internals_x86_gcc.h"
+ #elif defined(COMPILER_GCC) && defined(ARCH_CPU_ARM_FAMILY)
+ #include "base/atomicops_internals_arm_gcc.h"
++//#elif defined(COMPILER_GCC) && defined(ARCH_CPU_PPC_FAMILY)
++//#include "base/atomicops_internals_ppc_gcc.h"
+ #else
+ #include "base/atomicops_internals_mutex.h"
+ #endif
+
+ #endif // BASE_ATOMICOPS_H_
+diff --git a/ipc/chromium/src/base/atomicops_internals_ppc_gcc.h b/ipc/chromium/src/base/atomicops_internals_ppc_gcc.h
+new file mode 100644
+--- /dev/null
++++ b/ipc/chromium/src/base/atomicops_internals_ppc_gcc.h
+@@ -0,0 +1,148 @@
++// Copyright (c) 2010 JJDaNiMoTh <jjdanimoth@gmail.com>. All rights reserved.
++// Use of this source code is governed by a BSD-style license that can be
++// found in the LICENSE file.
++
++// This file is an internal atomic implementation, use base/atomicops.h instead.
++
++#ifndef BASE_ATOMICOPS_INTERNALS_PPC_GCC_H_
++#define BASE_ATOMICOPS_INTERNALS_PPC_GCC_H_
++#define ATOMICOPS_COMPILER_BARRIER() __asm__ __volatile__("" : : : "memory")
++
++#define PPC_ACQUIRE_BARRIER "\nisync\n"
++#define PPC_RELEASE_BARRIER "\nlwsync\n"
++
++namespace base {
++namespace subtle {
++
++// 32-bit low-level operations on any platform.
++
++/*
++ * Compare and exchange - if *ptr == old, set it to new,
++ * and return the old value of *p.
++ */
++inline Atomic32 NoBarrier_CompareAndSwap(volatile Atomic32* ptr,
++ Atomic32 old_value,
++ Atomic32 new_value) {
++ Atomic32 prev;
++
++ __asm__ __volatile__ (
++ "1: lwarx %0,0,%2\n"
++ "cmpw 0,%0,%3\n"
++ "bne- 2f\n"
++ "stwcx. %4,0,%2\n"
++ "bne- 1b\n"
++ "2:\n"
++ : "=&r" (prev), "+m" (*ptr)
++ : "r" (ptr), "r" (old_value), "r" (new_value)
++ : "cc", "memory");
++
++ return prev;
++}
++
++/*
++* Atomic exchange
++*
++* Changes the memory location '*ptr' to be new_value and returns
++* the previous value stored there.
++*/
++inline Atomic32 NoBarrier_AtomicExchange(volatile Atomic32* ptr,
++ Atomic32 new_value) {
++ Atomic32 prev;
++
++ __asm__ __volatile__(
++"1: lwarx %0,0,%2 \n"
++" stwcx. %3,0,%2 \n\
++ bne- 1b"
++ : "=&r" (prev), "+m" (*ptr)
++ : "r" (ptr), "r" (new_value)
++ : "cc", "memory");
++
++ return prev;
++}
++
++inline Atomic32 NoBarrier_AtomicIncrement(volatile Atomic32* ptr,
++ Atomic32 increment) {
++ Atomic32 temp;
++
++ __asm__ __volatile__(
++"1: lwarx %0,0,%2\n\
++ add %0,%1,%0\n"
++" stwcx. %0,0,%2 \n\
++ bne- 1b"
++ : "=&r" (temp)
++ : "r" (increment), "r" (ptr)
++ : "cc", "memory");
++
++ return temp;
++}
++
++inline Atomic32 Barrier_AtomicIncrement(volatile Atomic32* ptr,
++ Atomic32 increment) {
++ Atomic32 temp;
++
++ __asm__ __volatile__(
++ PPC_RELEASE_BARRIER
++"1: lwarx %0,0,%2\n\
++ add %0,%1,%0\n"
++" stwcx. %0,0,%2 \n\
++ bne- 1b"
++ PPC_ACQUIRE_BARRIER
++ : "=&r" (temp)
++ : "r" (increment), "r" (ptr)
++ : "cc", "memory");
++
++ return temp;
++}
++
++inline Atomic32 Acquire_CompareAndSwap(volatile Atomic32* ptr,
++ Atomic32 old_value,
++ Atomic32 new_value) {
++ return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
++}
++
++inline Atomic32 Release_CompareAndSwap(volatile Atomic32* ptr,
++ Atomic32 old_value,
++ Atomic32 new_value) {
++ return NoBarrier_CompareAndSwap(ptr, old_value, new_value);
++}
++
++inline void NoBarrier_Store(volatile Atomic32* ptr, Atomic32 value) {
++ *ptr = value;
++}
++
++inline void MemoryBarrier() {
++ __asm__ __volatile__("sync" : : : "memory");
++}
++
++inline void Acquire_Store(volatile Atomic32* ptr, Atomic32 value) {
++ *ptr = value;
++ MemoryBarrier();
++}
++
++inline void Release_Store(volatile Atomic32* ptr, Atomic32 value) {
++ MemoryBarrier();
++ *ptr = value;
++}
++
++inline Atomic32 NoBarrier_Load(volatile const Atomic32* ptr) {
++ return *ptr;
++}
++
++inline Atomic32 Acquire_Load(volatile const Atomic32* ptr) {
++ Atomic32 value = *ptr;
++ MemoryBarrier();
++ return value;
++
++}
++
++inline Atomic32 Release_Load(volatile const Atomic32* ptr) {
++ MemoryBarrier();
++ return *ptr;
++}
++
++} // namespace base::subtle
++} // namespace base
++
++#undef ATOMICOPS_COMPILER_BARRIER
++
++#endif // BASE_ATOMICOPS_INTERNALS_PPC_GCC_H_
+diff --git a/ipc/chromium/src/build/build_config.h b/ipc/chromium/src/build/build_config.h
+--- a/ipc/chromium/src/build/build_config.h
++++ b/ipc/chromium/src/build/build_config.h
+@@ -52,19 +52,20 @@
+ #define ARCH_CPU_X86_FAMILY 1
+ #define ARCH_CPU_X86 1
+ #define ARCH_CPU_32_BITS 1
+ #elif defined(__ARMEL__)
+ #define ARCH_CPU_ARM_FAMILY 1
+ #define ARCH_CPU_ARMEL 1
+ #define ARCH_CPU_32_BITS 1
+ #define WCHAR_T_IS_UNSIGNED 1
+-#elif defined(__ppc__)
++#elif defined(__ppc__) || defined(__powerpc) || defined(__PPC__)
+ #define ARCH_CPU_PPC 1
+ #define ARCH_CPU_32_BITS 1
++#define ARCH_CPU_PPC_FAMILY 1
+ #else
+ #error Please add support for your architecture in build/build_config.h
+ #endif
+
+ // Type detection for wchar_t.
+ #ifndef CHROMIUM_MOZILLA_BUILD
+
+ #if defined(OS_WIN)