725 lines
27 KiB
C
725 lines
27 KiB
C
//===------------------------ malloc.c ------------------*- C -*-=============//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This library provides a cross-platform lock free thread caching malloc
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// implementation in C11.
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//
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//
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// This file provides overrides for the standard library malloc entry points for
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// C and new/delete operators for C++ It also provides automatic
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// initialization/finalization of process and threads
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//
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//===----------------------------------------------------------------------===//
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#if defined(__TINYC__)
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#include <sys/types.h>
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#endif
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#ifndef ARCH_64BIT
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#if defined(__LLP64__) || defined(__LP64__) || defined(_WIN64)
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#define ARCH_64BIT 1
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_Static_assert(sizeof(size_t) == 8, "Data type size mismatch");
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_Static_assert(sizeof(void *) == 8, "Data type size mismatch");
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#else
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#define ARCH_64BIT 0
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_Static_assert(sizeof(size_t) == 4, "Data type size mismatch");
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_Static_assert(sizeof(void *) == 4, "Data type size mismatch");
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#endif
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#endif
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#if (defined(__GNUC__) || defined(__clang__))
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#pragma GCC visibility push(default)
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#endif
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#define USE_IMPLEMENT 1
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#define USE_INTERPOSE 0
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#define USE_ALIAS 0
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#if defined(__APPLE__)
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#undef USE_INTERPOSE
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#define USE_INTERPOSE 1
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typedef struct interpose_t {
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void *new_func;
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void *orig_func;
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} interpose_t;
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#define MAC_INTERPOSE_PAIR(newf, oldf) {(void *)newf, (void *)oldf}
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#define MAC_INTERPOSE_SINGLE(newf, oldf) \
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__attribute__((used)) static const interpose_t macinterpose##newf##oldf \
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__attribute__((section("__DATA, __interpose"))) = \
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MAC_INTERPOSE_PAIR(newf, oldf)
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#endif
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#if !defined(_WIN32) && !defined(__APPLE__)
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#undef USE_IMPLEMENT
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#undef USE_ALIAS
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#define USE_IMPLEMENT 0
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#define USE_ALIAS 1
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#endif
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#ifdef _MSC_VER
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#pragma warning(disable : 4100)
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#undef malloc
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#undef free
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#undef calloc
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#define RPMALLOC_RESTRICT __declspec(restrict)
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#else
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#define RPMALLOC_RESTRICT
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#endif
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#if ENABLE_OVERRIDE
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typedef struct rp_nothrow_t {
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int __dummy;
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} rp_nothrow_t;
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#if USE_IMPLEMENT
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL malloc(size_t size) {
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return rpmalloc(size);
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}
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL calloc(size_t count,
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size_t size) {
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return rpcalloc(count, size);
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}
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL realloc(void *ptr,
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size_t size) {
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return rprealloc(ptr, size);
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}
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extern inline void *RPMALLOC_CDECL reallocf(void *ptr, size_t size) {
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return rprealloc(ptr, size);
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}
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extern inline void *RPMALLOC_CDECL aligned_alloc(size_t alignment,
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size_t size) {
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return rpaligned_alloc(alignment, size);
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}
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extern inline void *RPMALLOC_CDECL memalign(size_t alignment, size_t size) {
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return rpmemalign(alignment, size);
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}
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extern inline int RPMALLOC_CDECL posix_memalign(void **memptr, size_t alignment,
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size_t size) {
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return rpposix_memalign(memptr, alignment, size);
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}
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extern inline void RPMALLOC_CDECL free(void *ptr) { rpfree(ptr); }
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extern inline void RPMALLOC_CDECL cfree(void *ptr) { rpfree(ptr); }
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extern inline size_t RPMALLOC_CDECL malloc_usable_size(void *ptr) {
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return rpmalloc_usable_size(ptr);
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}
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extern inline size_t RPMALLOC_CDECL malloc_size(void *ptr) {
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return rpmalloc_usable_size(ptr);
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}
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#ifdef _WIN32
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL _malloc_base(size_t size) {
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return rpmalloc(size);
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}
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extern inline void RPMALLOC_CDECL _free_base(void *ptr) { rpfree(ptr); }
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL _calloc_base(size_t count,
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size_t size) {
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return rpcalloc(count, size);
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}
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extern inline size_t RPMALLOC_CDECL _msize(void *ptr) {
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return rpmalloc_usable_size(ptr);
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}
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extern inline size_t RPMALLOC_CDECL _msize_base(void *ptr) {
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return rpmalloc_usable_size(ptr);
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}
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extern inline RPMALLOC_RESTRICT void *RPMALLOC_CDECL
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_realloc_base(void *ptr, size_t size) {
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return rprealloc(ptr, size);
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}
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#endif
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#ifdef _WIN32
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// For Windows, #include <rpnew.h> in one source file to get the C++ operator
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// overrides implemented in your module
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#else
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// Overload the C++ operators using the mangled names
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// (https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling) operators
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// delete and delete[]
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#define RPDEFVIS __attribute__((visibility("default")))
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extern void _ZdlPv(void *p);
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void RPDEFVIS _ZdlPv(void *p) { rpfree(p); }
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extern void _ZdaPv(void *p);
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void RPDEFVIS _ZdaPv(void *p) { rpfree(p); }
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#if ARCH_64BIT
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// 64-bit operators new and new[], normal and aligned
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extern void *_Znwm(uint64_t size);
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void *RPDEFVIS _Znwm(uint64_t size) { return rpmalloc(size); }
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extern void *_Znam(uint64_t size);
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void *RPDEFVIS _Znam(uint64_t size) { return rpmalloc(size); }
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extern void *_Znwmm(uint64_t size, uint64_t align);
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void *RPDEFVIS _Znwmm(uint64_t size, uint64_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_Znamm(uint64_t size, uint64_t align);
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void *RPDEFVIS _Znamm(uint64_t size, uint64_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnwmSt11align_val_t(uint64_t size, uint64_t align);
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void *RPDEFVIS _ZnwmSt11align_val_t(uint64_t size, uint64_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnamSt11align_val_t(uint64_t size, uint64_t align);
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void *RPDEFVIS _ZnamSt11align_val_t(uint64_t size, uint64_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnwmRKSt9nothrow_t(uint64_t size, rp_nothrow_t t);
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void *RPDEFVIS _ZnwmRKSt9nothrow_t(uint64_t size, rp_nothrow_t t) {
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(void)sizeof(t);
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return rpmalloc(size);
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}
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extern void *_ZnamRKSt9nothrow_t(uint64_t size, rp_nothrow_t t);
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void *RPDEFVIS _ZnamRKSt9nothrow_t(uint64_t size, rp_nothrow_t t) {
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(void)sizeof(t);
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return rpmalloc(size);
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}
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extern void *_ZnwmSt11align_val_tRKSt9nothrow_t(uint64_t size, uint64_t align,
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rp_nothrow_t t);
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void *RPDEFVIS _ZnwmSt11align_val_tRKSt9nothrow_t(uint64_t size, uint64_t align,
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rp_nothrow_t t) {
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(void)sizeof(t);
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnamSt11align_val_tRKSt9nothrow_t(uint64_t size, uint64_t align,
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rp_nothrow_t t);
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void *RPDEFVIS _ZnamSt11align_val_tRKSt9nothrow_t(uint64_t size, uint64_t align,
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rp_nothrow_t t) {
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(void)sizeof(t);
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return rpaligned_alloc(align, size);
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}
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// 64-bit operators sized delete and delete[], normal and aligned
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extern void _ZdlPvm(void *p, uint64_t size);
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void RPDEFVIS _ZdlPvm(void *p, uint64_t size) {
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rpfree(p);
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(void)sizeof(size);
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}
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extern void _ZdaPvm(void *p, uint64_t size);
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void RPDEFVIS _ZdaPvm(void *p, uint64_t size) {
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rpfree(p);
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(void)sizeof(size);
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}
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extern void _ZdlPvSt11align_val_t(void *p, uint64_t align);
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void RPDEFVIS _ZdlPvSt11align_val_t(void *p, uint64_t align) {
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rpfree(p);
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(void)sizeof(align);
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}
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extern void _ZdaPvSt11align_val_t(void *p, uint64_t align);
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void RPDEFVIS _ZdaPvSt11align_val_t(void *p, uint64_t align) {
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rpfree(p);
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(void)sizeof(align);
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}
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extern void _ZdlPvmSt11align_val_t(void *p, uint64_t size, uint64_t align);
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void RPDEFVIS _ZdlPvmSt11align_val_t(void *p, uint64_t size, uint64_t align) {
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rpfree(p);
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(void)sizeof(size);
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(void)sizeof(align);
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}
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extern void _ZdaPvmSt11align_val_t(void *p, uint64_t size, uint64_t align);
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void RPDEFVIS _ZdaPvmSt11align_val_t(void *p, uint64_t size, uint64_t align) {
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rpfree(p);
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(void)sizeof(size);
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(void)sizeof(align);
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}
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#else
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// 32-bit operators new and new[], normal and aligned
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extern void *_Znwj(uint32_t size);
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void *RPDEFVIS _Znwj(uint32_t size) { return rpmalloc(size); }
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extern void *_Znaj(uint32_t size);
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void *RPDEFVIS _Znaj(uint32_t size) { return rpmalloc(size); }
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extern void *_Znwjj(uint32_t size, uint32_t align);
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void *RPDEFVIS _Znwjj(uint32_t size, uint32_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_Znajj(uint32_t size, uint32_t align);
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void *RPDEFVIS _Znajj(uint32_t size, uint32_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnwjSt11align_val_t(size_t size, size_t align);
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void *RPDEFVIS _ZnwjSt11align_val_t(size_t size, size_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnajSt11align_val_t(size_t size, size_t align);
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void *RPDEFVIS _ZnajSt11align_val_t(size_t size, size_t align) {
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnwjRKSt9nothrow_t(size_t size, rp_nothrow_t t);
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void *RPDEFVIS _ZnwjRKSt9nothrow_t(size_t size, rp_nothrow_t t) {
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(void)sizeof(t);
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return rpmalloc(size);
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}
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extern void *_ZnajRKSt9nothrow_t(size_t size, rp_nothrow_t t);
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void *RPDEFVIS _ZnajRKSt9nothrow_t(size_t size, rp_nothrow_t t) {
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(void)sizeof(t);
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return rpmalloc(size);
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}
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extern void *_ZnwjSt11align_val_tRKSt9nothrow_t(size_t size, size_t align,
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rp_nothrow_t t);
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void *RPDEFVIS _ZnwjSt11align_val_tRKSt9nothrow_t(size_t size, size_t align,
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rp_nothrow_t t) {
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(void)sizeof(t);
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return rpaligned_alloc(align, size);
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}
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extern void *_ZnajSt11align_val_tRKSt9nothrow_t(size_t size, size_t align,
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rp_nothrow_t t);
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void *RPDEFVIS _ZnajSt11align_val_tRKSt9nothrow_t(size_t size, size_t align,
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rp_nothrow_t t) {
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(void)sizeof(t);
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return rpaligned_alloc(align, size);
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}
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// 32-bit operators sized delete and delete[], normal and aligned
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extern void _ZdlPvj(void *p, uint64_t size);
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void RPDEFVIS _ZdlPvj(void *p, uint64_t size) {
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rpfree(p);
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(void)sizeof(size);
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}
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extern void _ZdaPvj(void *p, uint64_t size);
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void RPDEFVIS _ZdaPvj(void *p, uint64_t size) {
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rpfree(p);
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(void)sizeof(size);
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}
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extern void _ZdlPvSt11align_val_t(void *p, uint32_t align);
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void RPDEFVIS _ZdlPvSt11align_val_t(void *p, uint64_t a) {
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rpfree(p);
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(void)sizeof(align);
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}
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extern void _ZdaPvSt11align_val_t(void *p, uint32_t align);
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void RPDEFVIS _ZdaPvSt11align_val_t(void *p, uint64_t a) {
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rpfree(p);
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(void)sizeof(align);
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}
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extern void _ZdlPvjSt11align_val_t(void *p, uint32_t size, uint32_t align);
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void RPDEFVIS _ZdlPvjSt11align_val_t(void *p, uint64_t size, uint64_t align) {
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rpfree(p);
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(void)sizeof(size);
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(void)sizeof(a);
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}
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extern void _ZdaPvjSt11align_val_t(void *p, uint32_t size, uint32_t align);
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void RPDEFVIS _ZdaPvjSt11align_val_t(void *p, uint64_t size, uint64_t align) {
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rpfree(p);
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(void)sizeof(size);
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(void)sizeof(a);
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}
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#endif
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#endif
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#endif
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#if USE_INTERPOSE || USE_ALIAS
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static void *rpmalloc_nothrow(size_t size, rp_nothrow_t t) {
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(void)sizeof(t);
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return rpmalloc(size);
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}
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static void *rpaligned_alloc_reverse(size_t size, size_t align) {
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return rpaligned_alloc(align, size);
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}
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static void *rpaligned_alloc_reverse_nothrow(size_t size, size_t align,
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rp_nothrow_t t) {
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(void)sizeof(t);
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return rpaligned_alloc(align, size);
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}
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static void rpfree_size(void *p, size_t size) {
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(void)sizeof(size);
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rpfree(p);
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}
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static void rpfree_aligned(void *p, size_t align) {
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(void)sizeof(align);
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rpfree(p);
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}
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static void rpfree_size_aligned(void *p, size_t size, size_t align) {
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(void)sizeof(size);
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(void)sizeof(align);
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rpfree(p);
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}
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#endif
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#if USE_INTERPOSE
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__attribute__((used)) static const interpose_t macinterpose_malloc[]
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__attribute__((section("__DATA, __interpose"))) = {
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// new and new[]
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MAC_INTERPOSE_PAIR(rpmalloc, _Znwm),
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MAC_INTERPOSE_PAIR(rpmalloc, _Znam),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse, _Znwmm),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse, _Znamm),
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MAC_INTERPOSE_PAIR(rpmalloc_nothrow, _ZnwmRKSt9nothrow_t),
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MAC_INTERPOSE_PAIR(rpmalloc_nothrow, _ZnamRKSt9nothrow_t),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse, _ZnwmSt11align_val_t),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse, _ZnamSt11align_val_t),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse_nothrow,
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_ZnwmSt11align_val_tRKSt9nothrow_t),
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MAC_INTERPOSE_PAIR(rpaligned_alloc_reverse_nothrow,
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_ZnamSt11align_val_tRKSt9nothrow_t),
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// delete and delete[]
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MAC_INTERPOSE_PAIR(rpfree, _ZdlPv), MAC_INTERPOSE_PAIR(rpfree, _ZdaPv),
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MAC_INTERPOSE_PAIR(rpfree_size, _ZdlPvm),
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MAC_INTERPOSE_PAIR(rpfree_size, _ZdaPvm),
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MAC_INTERPOSE_PAIR(rpfree_aligned, _ZdlPvSt11align_val_t),
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MAC_INTERPOSE_PAIR(rpfree_aligned, _ZdaPvSt11align_val_t),
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MAC_INTERPOSE_PAIR(rpfree_size_aligned, _ZdlPvmSt11align_val_t),
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MAC_INTERPOSE_PAIR(rpfree_size_aligned, _ZdaPvmSt11align_val_t),
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// libc entry points
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MAC_INTERPOSE_PAIR(rpmalloc, malloc),
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MAC_INTERPOSE_PAIR(rpmalloc, calloc),
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MAC_INTERPOSE_PAIR(rprealloc, realloc),
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MAC_INTERPOSE_PAIR(rprealloc, reallocf),
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#if defined(__MAC_10_15) && __MAC_OS_X_VERSION_MIN_REQUIRED >= __MAC_10_15
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MAC_INTERPOSE_PAIR(rpaligned_alloc, aligned_alloc),
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#endif
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MAC_INTERPOSE_PAIR(rpmemalign, memalign),
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MAC_INTERPOSE_PAIR(rpposix_memalign, posix_memalign),
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MAC_INTERPOSE_PAIR(rpfree, free), MAC_INTERPOSE_PAIR(rpfree, cfree),
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MAC_INTERPOSE_PAIR(rpmalloc_usable_size, malloc_usable_size),
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MAC_INTERPOSE_PAIR(rpmalloc_usable_size, malloc_size)};
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#endif
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#if USE_ALIAS
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#define RPALIAS(fn) __attribute__((alias(#fn), used, visibility("default")));
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// Alias the C++ operators using the mangled names
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// (https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling)
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// operators delete and delete[]
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void _ZdlPv(void *p) RPALIAS(rpfree) void _ZdaPv(void *p) RPALIAS(rpfree)
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#if ARCH_64BIT
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// 64-bit operators new and new[], normal and aligned
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void *_Znwm(uint64_t size) RPMALLOC_ATTRIB_MALLOC
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RPMALLOC_ATTRIB_ALLOC_SIZE(1)
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RPALIAS(rpmalloc) void *_Znam(uint64_t size) RPMALLOC_ATTRIB_MALLOC
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RPMALLOC_ATTRIB_ALLOC_SIZE(1) RPALIAS(rpmalloc) void *_Znwmm(uint64_t size,
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uint64_t align)
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RPALIAS(rpaligned_alloc_reverse) void *_Znamm(uint64_t size,
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uint64_t align)
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RPALIAS(rpaligned_alloc_reverse) void *_ZnwmSt11align_val_t(
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size_t size, size_t align)
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RPALIAS(rpaligned_alloc_reverse) void *_ZnamSt11align_val_t(
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size_t size, size_t align)
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RPALIAS(rpaligned_alloc_reverse) void *_ZnwmRKSt9nothrow_t(
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size_t size, rp_nothrow_t t)
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RPALIAS(rpmalloc_nothrow) void *_ZnamRKSt9nothrow_t(
|
|
size_t size,
|
|
rp_nothrow_t t) RPALIAS(rpmalloc_nothrow) void
|
|
*_ZnwmSt11align_val_tRKSt9nothrow_t(size_t size,
|
|
size_t align,
|
|
rp_nothrow_t t)
|
|
RPALIAS(rpaligned_alloc_reverse_nothrow) void
|
|
*_ZnamSt11align_val_tRKSt9nothrow_t(
|
|
size_t size, size_t align,
|
|
rp_nothrow_t t)
|
|
RPALIAS(rpaligned_alloc_reverse_nothrow)
|
|
// 64-bit operators delete and delete[], sized and aligned
|
|
void _ZdlPvm(void *p, size_t n) RPALIAS(rpfree_size) void _ZdaPvm(void *p,
|
|
size_t n)
|
|
RPALIAS(rpfree_size) void _ZdlPvSt11align_val_t(void *p, size_t a)
|
|
RPALIAS(rpfree_aligned) void _ZdaPvSt11align_val_t(void *p,
|
|
size_t a)
|
|
RPALIAS(rpfree_aligned) void _ZdlPvmSt11align_val_t(void *p,
|
|
size_t n,
|
|
size_t a)
|
|
RPALIAS(rpfree_size_aligned) void _ZdaPvmSt11align_val_t(
|
|
void *p, size_t n, size_t a)
|
|
RPALIAS(rpfree_size_aligned)
|
|
#else
|
|
// 32-bit operators new and new[], normal and aligned
|
|
void *_Znwj(uint32_t size) RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(1)
|
|
RPALIAS(rpmalloc) void *_Znaj(uint32_t size) RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(1) RPALIAS(rpmalloc) void *_Znwjj(uint32_t size,
|
|
uint32_t align)
|
|
RPALIAS(rpaligned_alloc_reverse) void *_Znajj(uint32_t size,
|
|
uint32_t align)
|
|
RPALIAS(rpaligned_alloc_reverse) void *_ZnwjSt11align_val_t(
|
|
size_t size, size_t align)
|
|
RPALIAS(rpaligned_alloc_reverse) void *_ZnajSt11align_val_t(
|
|
size_t size, size_t align)
|
|
RPALIAS(rpaligned_alloc_reverse) void *_ZnwjRKSt9nothrow_t(
|
|
size_t size, rp_nothrow_t t)
|
|
RPALIAS(rpmalloc_nothrow) void *_ZnajRKSt9nothrow_t(
|
|
size_t size,
|
|
rp_nothrow_t t) RPALIAS(rpmalloc_nothrow) void
|
|
*_ZnwjSt11align_val_tRKSt9nothrow_t(size_t size,
|
|
size_t align,
|
|
rp_nothrow_t t)
|
|
RPALIAS(rpaligned_alloc_reverse_nothrow) void
|
|
*_ZnajSt11align_val_tRKSt9nothrow_t(
|
|
size_t size, size_t align,
|
|
rp_nothrow_t t)
|
|
RPALIAS(rpaligned_alloc_reverse_nothrow)
|
|
// 32-bit operators delete and delete[], sized and aligned
|
|
void _ZdlPvj(void *p, size_t n) RPALIAS(rpfree_size) void _ZdaPvj(void *p,
|
|
size_t n)
|
|
RPALIAS(rpfree_size) void _ZdlPvSt11align_val_t(void *p, size_t a)
|
|
RPALIAS(rpfree_aligned) void _ZdaPvSt11align_val_t(void *p,
|
|
size_t a)
|
|
RPALIAS(rpfree_aligned) void _ZdlPvjSt11align_val_t(void *p,
|
|
size_t n,
|
|
size_t a)
|
|
RPALIAS(rpfree_size_aligned) void _ZdaPvjSt11align_val_t(
|
|
void *p, size_t n, size_t a)
|
|
RPALIAS(rpfree_size_aligned)
|
|
#endif
|
|
|
|
void *malloc(size_t size) RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(1)
|
|
RPALIAS(rpmalloc) void *calloc(size_t count, size_t size)
|
|
RPALIAS(rpcalloc) void *realloc(void *ptr, size_t size)
|
|
RPALIAS(rprealloc) void *reallocf(void *ptr, size_t size)
|
|
RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(2)
|
|
RPALIAS(rprealloc) void *aligned_alloc(size_t alignment, size_t size)
|
|
RPALIAS(rpaligned_alloc) void *memalign(
|
|
size_t alignment, size_t size) RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(2)
|
|
RPALIAS(rpmemalign) int posix_memalign(void **memptr, size_t alignment,
|
|
size_t size)
|
|
RPALIAS(rpposix_memalign) void free(void *ptr)
|
|
RPALIAS(rpfree) void cfree(void *ptr) RPALIAS(rpfree)
|
|
#if defined(__ANDROID__) || defined(__FreeBSD__)
|
|
size_t
|
|
malloc_usable_size(const void *ptr) RPALIAS(rpmalloc_usable_size)
|
|
#else
|
|
size_t
|
|
malloc_usable_size(void *ptr) RPALIAS(rpmalloc_usable_size)
|
|
#endif
|
|
size_t malloc_size(void *ptr) RPALIAS(rpmalloc_usable_size)
|
|
|
|
#endif
|
|
|
|
static inline size_t _rpmalloc_page_size(void) {
|
|
return _memory_page_size;
|
|
}
|
|
|
|
extern void *RPMALLOC_CDECL reallocarray(void *ptr, size_t count, size_t size);
|
|
|
|
extern void *RPMALLOC_CDECL reallocarray(void *ptr, size_t count, size_t size) {
|
|
size_t total;
|
|
#if ENABLE_VALIDATE_ARGS
|
|
#ifdef _MSC_VER
|
|
int err = SizeTMult(count, size, &total);
|
|
if ((err != S_OK) || (total >= MAX_ALLOC_SIZE)) {
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
#else
|
|
int err = __builtin_umull_overflow(count, size, &total);
|
|
if (err || (total >= MAX_ALLOC_SIZE)) {
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
#endif
|
|
#else
|
|
total = count * size;
|
|
#endif
|
|
return realloc(ptr, total);
|
|
}
|
|
|
|
extern inline void *RPMALLOC_CDECL valloc(size_t size) {
|
|
get_thread_heap();
|
|
return rpaligned_alloc(_rpmalloc_page_size(), size);
|
|
}
|
|
|
|
extern inline void *RPMALLOC_CDECL pvalloc(size_t size) {
|
|
get_thread_heap();
|
|
const size_t page_size = _rpmalloc_page_size();
|
|
const size_t aligned_size = ((size + page_size - 1) / page_size) * page_size;
|
|
#if ENABLE_VALIDATE_ARGS
|
|
if (aligned_size < size) {
|
|
errno = EINVAL;
|
|
return 0;
|
|
}
|
|
#endif
|
|
return rpaligned_alloc(_rpmalloc_page_size(), aligned_size);
|
|
}
|
|
|
|
#endif // ENABLE_OVERRIDE
|
|
|
|
#if ENABLE_PRELOAD
|
|
|
|
#ifdef _WIN32
|
|
|
|
#if defined(BUILD_DYNAMIC_LINK) && BUILD_DYNAMIC_LINK
|
|
|
|
extern __declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE instance,
|
|
DWORD reason, LPVOID reserved);
|
|
|
|
extern __declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE instance,
|
|
DWORD reason,
|
|
LPVOID reserved) {
|
|
(void)sizeof(reserved);
|
|
(void)sizeof(instance);
|
|
if (reason == DLL_PROCESS_ATTACH)
|
|
rpmalloc_initialize();
|
|
else if (reason == DLL_PROCESS_DETACH)
|
|
rpmalloc_finalize();
|
|
else if (reason == DLL_THREAD_ATTACH)
|
|
rpmalloc_thread_initialize();
|
|
else if (reason == DLL_THREAD_DETACH)
|
|
rpmalloc_thread_finalize(1);
|
|
return TRUE;
|
|
}
|
|
|
|
// end BUILD_DYNAMIC_LINK
|
|
#else
|
|
|
|
extern void _global_rpmalloc_init(void) {
|
|
rpmalloc_set_main_thread();
|
|
rpmalloc_initialize();
|
|
}
|
|
|
|
#if defined(__clang__) || defined(__GNUC__)
|
|
|
|
static void __attribute__((constructor)) initializer(void) {
|
|
_global_rpmalloc_init();
|
|
}
|
|
|
|
#elif defined(_MSC_VER)
|
|
|
|
static int _global_rpmalloc_xib(void) {
|
|
_global_rpmalloc_init();
|
|
return 0;
|
|
}
|
|
|
|
#pragma section(".CRT$XIB", read)
|
|
__declspec(allocate(".CRT$XIB")) void (*_rpmalloc_module_init)(void) =
|
|
_global_rpmalloc_xib;
|
|
#if defined(_M_IX86) || defined(__i386__)
|
|
#pragma comment(linker, "/include:" \
|
|
"__rpmalloc_module_init")
|
|
#else
|
|
#pragma comment(linker, "/include:" \
|
|
"_rpmalloc_module_init")
|
|
#endif
|
|
|
|
#endif
|
|
|
|
// end !BUILD_DYNAMIC_LINK
|
|
#endif
|
|
|
|
#else
|
|
|
|
#include <pthread.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
extern void rpmalloc_set_main_thread(void);
|
|
|
|
static pthread_key_t destructor_key;
|
|
|
|
static void thread_destructor(void *);
|
|
|
|
static void __attribute__((constructor)) initializer(void) {
|
|
rpmalloc_set_main_thread();
|
|
rpmalloc_initialize();
|
|
pthread_key_create(&destructor_key, thread_destructor);
|
|
}
|
|
|
|
static void __attribute__((destructor)) finalizer(void) { rpmalloc_finalize(); }
|
|
|
|
typedef struct {
|
|
void *(*real_start)(void *);
|
|
void *real_arg;
|
|
} thread_starter_arg;
|
|
|
|
static void *thread_starter(void *argptr) {
|
|
thread_starter_arg *arg = argptr;
|
|
void *(*real_start)(void *) = arg->real_start;
|
|
void *real_arg = arg->real_arg;
|
|
rpmalloc_thread_initialize();
|
|
rpfree(argptr);
|
|
pthread_setspecific(destructor_key, (void *)1);
|
|
return (*real_start)(real_arg);
|
|
}
|
|
|
|
static void thread_destructor(void *value) {
|
|
(void)sizeof(value);
|
|
rpmalloc_thread_finalize(1);
|
|
}
|
|
|
|
#ifdef __APPLE__
|
|
|
|
static int pthread_create_proxy(pthread_t *thread, const pthread_attr_t *attr,
|
|
void *(*start_routine)(void *), void *arg) {
|
|
rpmalloc_initialize();
|
|
thread_starter_arg *starter_arg = rpmalloc(sizeof(thread_starter_arg));
|
|
starter_arg->real_start = start_routine;
|
|
starter_arg->real_arg = arg;
|
|
return pthread_create(thread, attr, thread_starter, starter_arg);
|
|
}
|
|
|
|
MAC_INTERPOSE_SINGLE(pthread_create_proxy, pthread_create);
|
|
|
|
#else
|
|
|
|
#include <dlfcn.h>
|
|
|
|
int pthread_create(pthread_t *thread, const pthread_attr_t *attr,
|
|
void *(*start_routine)(void *), void *arg) {
|
|
#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
|
|
defined(__NetBSD__) || defined(__DragonFly__) || defined(__APPLE__) || \
|
|
defined(__HAIKU__)
|
|
char fname[] = "pthread_create";
|
|
#else
|
|
char fname[] = "_pthread_create";
|
|
#endif
|
|
void *real_pthread_create = dlsym(RTLD_NEXT, fname);
|
|
rpmalloc_thread_initialize();
|
|
thread_starter_arg *starter_arg = rpmalloc(sizeof(thread_starter_arg));
|
|
starter_arg->real_start = start_routine;
|
|
starter_arg->real_arg = arg;
|
|
return (*(int (*)(pthread_t *, const pthread_attr_t *, void *(*)(void *),
|
|
void *))real_pthread_create)(thread, attr, thread_starter,
|
|
starter_arg);
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if ENABLE_OVERRIDE
|
|
|
|
#if defined(__GLIBC__) && defined(__linux__)
|
|
|
|
void *__libc_malloc(size_t size) RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(1)
|
|
RPALIAS(rpmalloc) void *__libc_calloc(size_t count, size_t size)
|
|
RPMALLOC_ATTRIB_MALLOC RPMALLOC_ATTRIB_ALLOC_SIZE2(1, 2)
|
|
RPALIAS(rpcalloc) void *__libc_realloc(void *p, size_t size)
|
|
RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(2) RPALIAS(rprealloc) void __libc_free(void *p)
|
|
RPALIAS(rpfree) void __libc_cfree(void *p)
|
|
RPALIAS(rpfree) void *__libc_memalign(size_t align, size_t size)
|
|
RPMALLOC_ATTRIB_MALLOC
|
|
RPMALLOC_ATTRIB_ALLOC_SIZE(2)
|
|
RPALIAS(rpmemalign) int __posix_memalign(void **p, size_t align,
|
|
size_t size)
|
|
RPALIAS(rpposix_memalign)
|
|
|
|
extern void *__libc_valloc(size_t size);
|
|
extern void *__libc_pvalloc(size_t size);
|
|
|
|
void *__libc_valloc(size_t size) { return valloc(size); }
|
|
|
|
void *__libc_pvalloc(size_t size) { return pvalloc(size); }
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if (defined(__GNUC__) || defined(__clang__))
|
|
#pragma GCC visibility pop
|
|
#endif
|