1 files changed, 0 insertions, 110 deletions
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);
-}