diff options
Diffstat (limited to 'libstdc++')
-rw-r--r-- | libstdc++/Android.mk | 35 | ||||
-rw-r--r-- | libstdc++/src/libstdc++.cpp | 1 | ||||
-rw-r--r-- | libstdc++/src/new.cpp | 57 | ||||
-rw-r--r-- | libstdc++/src/one_time_construction.cpp | 110 | ||||
-rw-r--r-- | libstdc++/src/pure_virtual.cpp | 8 | ||||
-rw-r--r-- | libstdc++/src/typeinfo.cpp | 27 |
6 files changed, 3 insertions, 235 deletions
diff --git a/libstdc++/Android.mk b/libstdc++/Android.mk index c7ed1f5..ff9609a 100644 --- a/libstdc++/Android.mk +++ b/libstdc++/Android.mk @@ -1,46 +1,15 @@ LOCAL_PATH:= $(call my-dir) -# Common C++ flags to build this library. -# Note that we need to access private Bionic headers -# and define ANDROID_SMP accordingly. -libstdc++_cflags := -Ibionic/libc/ -ifeq ($(TARGET_CPU_SMP),true) - libstdc++_cflags += -DANDROID_SMP=1 -else - libstdc++_cflags += -DANDROID_SMP=0 -endif -libstdc++_cflags += -Wall -Wextra -Werror - include $(CLEAR_VARS) - -LOCAL_SRC_FILES:= \ - src/one_time_construction.cpp \ - src/new.cpp \ - src/pure_virtual.cpp \ - src/typeinfo.cpp - +LOCAL_SRC_FILES := src/libstdc++.cpp LOCAL_MODULE:= libstdc++ LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk - -LOCAL_CFLAGS := $(libstdc++_cflags) - LOCAL_SYSTEM_SHARED_LIBRARIES := libc - include $(BUILD_SHARED_LIBRARY) include $(CLEAR_VARS) - -LOCAL_SRC_FILES:= \ - src/one_time_construction.cpp \ - src/new.cpp \ - src/pure_virtual.cpp \ - src/typeinfo.cpp - -LOCAL_CFLAGS := $(libstdc++_cflags) - +LOCAL_SRC_FILES:= src/libstdc++.cpp LOCAL_MODULE:= libstdc++ LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk - LOCAL_SYSTEM_SHARED_LIBRARIES := libc - include $(BUILD_STATIC_LIBRARY) diff --git a/libstdc++/src/libstdc++.cpp b/libstdc++/src/libstdc++.cpp new file mode 100644 index 0000000..3676aa1 --- /dev/null +++ b/libstdc++/src/libstdc++.cpp @@ -0,0 +1 @@ +extern "C" void __this_library_is_now_part_of_libc() {} diff --git a/libstdc++/src/new.cpp b/libstdc++/src/new.cpp deleted file mode 100644 index ddd3dba..0000000 --- a/libstdc++/src/new.cpp +++ /dev/null @@ -1,57 +0,0 @@ -#include "new" -#include <stdlib.h> - -const std::nothrow_t std::nothrow = {}; - -void* operator new(std::size_t size) -{ - void* p = malloc(size); - if (p == NULL) { - abort(); - } - return p; -} - -void* operator new[](std::size_t size) -{ - void* p = malloc(size); - if (p == NULL) { - abort(); - } - return p; -} - -void operator delete(void* ptr) -{ - free(ptr); -} - -void operator delete[](void* ptr) -{ - free(ptr); -} - -void* operator new(std::size_t size, const std::nothrow_t&) -{ - return malloc(size); -} - -void* operator new[](std::size_t size, const std::nothrow_t&) -{ - return malloc(size); -} - -void operator delete(void* ptr, const std::nothrow_t&) -{ - free(ptr); -} - -void operator delete[](void* ptr, const std::nothrow_t&) -{ - free(ptr); -} - - - - - diff --git a/libstdc++/src/one_time_construction.cpp b/libstdc++/src/one_time_construction.cpp deleted file mode 100644 index 5574311..0000000 --- a/libstdc++/src/one_time_construction.cpp +++ /dev/null @@ -1,110 +0,0 @@ -/* - * Copyright 2006 The Android Open Source Project - */ - -#include <stddef.h> -#include <sys/atomics.h> -#include <endian.h> - -#include "private/bionic_atomic_inline.h" -#include "private/bionic_futex.h" - -// This file contains C++ ABI support functions for one time -// constructors as defined in the "Run-time ABI for the ARM Architecture" -// section 4.4.2 -// -// ARM C++ ABI and Itanium/x86 C++ ABI has different definition for -// one time construction: -// -// ARM C++ ABI defines the LSB of guard variable should be tested -// by compiler-generated code before calling __cxa_guard_acquire et al. -// -// The Itanium/x86 C++ ABI defines the low-order _byte_ should be -// tested instead. -// -// Meanwhile, guard variable are 32bit aligned for ARM, and 64bit -// aligned for x86. -// -// Reference documentation: -// -// section 3.2.3 of ARM IHI 0041C (for ARM) -// section 3.3.2 of the Itanium C++ ABI specification v1.83 (for x86). -// -// There is no C++ ABI available for other ARCH. But the gcc source -// shows all other ARCH follow the definition of Itanium/x86 C++ ABI. - - -#if defined(__arm__) -// The ARM C++ ABI mandates that guard variable are -// 32-bit aligned, 32-bit values. And only its LSB is tested by -// the compiler-generated code before calling -// __cxa_guard_acquire. -// -typedef union { - int volatile state; - int32_t aligner; -} _guard_t; - -const static int ready = 0x1; -const static int pending = 0x2; -const static int waiting = 0x6; - -#else // GCC sources indicates all none-arm follow the same ABI -// The Itanium/x86 C++ ABI mandates that guard variables -// are 64-bit aligned, 64-bit values. Also, the least-significant -// byte is tested by the compiler-generated code before, we calling -// __cxa_guard_acquire. We can access it through the first -// 32-bit word in the union below. -// -typedef union { - int volatile state; - int64_t aligner; -} _guard_t; - -const static int ready = letoh32(0x1); -const static int pending = letoh32(0x100); -const static int waiting = letoh32(0x10000); -#endif - -extern "C" int __cxa_guard_acquire(_guard_t* gv) -{ - // 0 -> pending, return 1 - // pending -> waiting, wait and return 0 - // waiting: untouched, wait and return 0 - // ready: untouched, return 0 - -retry: - if (__bionic_cmpxchg(0, pending, &gv->state) == 0) { - ANDROID_MEMBAR_FULL(); - return 1; - } - __bionic_cmpxchg(pending, waiting, &gv->state); // Indicate there is a waiter - __futex_wait(&gv->state, waiting, NULL); - - if (gv->state != ready) // __cxa_guard_abort was called, let every thread try since there is no return code for this condition - goto retry; - - ANDROID_MEMBAR_FULL(); - return 0; -} - -extern "C" void __cxa_guard_release(_guard_t* gv) -{ - // pending -> ready - // waiting -> ready, and wake - - ANDROID_MEMBAR_FULL(); - if (__bionic_cmpxchg(pending, ready, &gv->state) == 0) { - return; - } - - gv->state = ready; - __futex_wake(&gv->state, 0x7fffffff); -} - -extern "C" void __cxa_guard_abort(_guard_t* gv) -{ - ANDROID_MEMBAR_FULL(); - gv->state= 0; - __futex_wake(&gv->state, 0x7fffffff); -} diff --git a/libstdc++/src/pure_virtual.cpp b/libstdc++/src/pure_virtual.cpp deleted file mode 100644 index 6b5e328..0000000 --- a/libstdc++/src/pure_virtual.cpp +++ /dev/null @@ -1,8 +0,0 @@ -#undef NDEBUG -#include <assert.h> - -extern "C" void __cxa_pure_virtual() { - // We can't call __libc_format_log from libstdc++ because it's hidden and in libc, so cheat. - assert(!"Pure virtual function called. Are you calling virtual methods from a destructor?"); - /* NOTREACHED */ -} diff --git a/libstdc++/src/typeinfo.cpp b/libstdc++/src/typeinfo.cpp deleted file mode 100644 index 928d2ea..0000000 --- a/libstdc++/src/typeinfo.cpp +++ /dev/null @@ -1,27 +0,0 @@ -#include "typeinfo" -#include <stdlib.h> - -type_info::type_info() { -} - -type_info::~type_info() { -} - -char const* type_info::name() const { - return "N/A"; -} - -bool type_info::operator==(type_info const& /*rhs*/) const { - return false; -} - -bool type_info::operator!=(type_info const& /*rhs*/) const { - return false; -} - -bool type_info::before(type_info const& /*rhs*/) const { - return false; -} - -type_info::type_info(type_info const& /*rhs*/) { -} |