merge with dev

This commit is contained in:
daan 2019-07-08 15:42:42 -07:00
commit 493dfc4b82
22 changed files with 321 additions and 147 deletions

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@ -1,7 +1,8 @@
cmake_minimum_required(VERSION 3.0)
project(libmimalloc C)
project(libmimalloc C CXX)
include("cmake/mimalloc-config-version.cmake")
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
option(MI_OVERRIDE "Override the standard malloc interface" ON)
option(MI_INTERPOSE "Use interpose to override standard malloc on macOS" ON)
@ -20,6 +21,7 @@ set(mi_sources
src/page.c
src/alloc.c
src/alloc-aligned.c
src/alloc-posix.c
src/heap.c
src/options.c
src/init.c)
@ -76,6 +78,7 @@ endif()
if(MI_USE_CXX MATCHES "ON")
message(STATUS "Use the C++ compiler to compile (MI_USE_CXX=ON)")
set_source_files_properties(${mi_sources} PROPERTIES LANGUAGE CXX )
set_source_files_properties(src/static.c test/test-api.c PROPERTIES LANGUAGE CXX )
endif()
# Compiler flags
@ -160,6 +163,8 @@ target_include_directories(mimalloc-obj PUBLIC
$<INSTALL_INTERFACE:${mi_install_dir}/include>
)
install(TARGETS mimalloc-obj EXPORT mimalloc DESTINATION ${mi_install_dir})
install(FILES $<TARGET_OBJECTS:mimalloc-obj>
DESTINATION ${mi_install_dir}
RENAME ${mi_basename}${CMAKE_C_OUTPUT_EXTENSION} )

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@ -212,12 +212,13 @@
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\src\alloc-aligned.c">
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">false</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">false</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">false</ExcludedFromBuild>
</ClCompile>
<ClCompile Include="..\..\src\alloc-override-win.c" />
<ClCompile Include="..\..\src\alloc-posix.c" />
<ClCompile Include="..\..\src\alloc.c" />
<ClCompile Include="..\..\src\heap.c" />
<ClCompile Include="..\..\src\init.c" />

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@ -61,5 +61,8 @@
<ClCompile Include="..\..\src\memory.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\src\alloc-posix.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
</Project>
</Project>

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@ -89,6 +89,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
<LanguageStandard>stdcpp17</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -101,6 +102,7 @@
<SDLCheck>true</SDLCheck>
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
<LanguageStandard>stdcpp17</LanguageStandard>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
@ -116,6 +118,7 @@
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<LanguageStandard>stdcpp17</LanguageStandard>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
@ -133,6 +136,7 @@
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>..\..\include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>_MBCS;%(PreprocessorDefinitions);NDEBUG</PreprocessorDefinitions>
<LanguageStandard>stdcpp17</LanguageStandard>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>

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@ -94,6 +94,7 @@
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>MI_DEBUG=3;_MBCS;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<CompileAs>Default</CompileAs>
</ClCompile>
<Lib>
<AdditionalLibraryDirectories>
@ -110,6 +111,7 @@
<ConformanceMode>true</ConformanceMode>
<AdditionalIncludeDirectories>../../include</AdditionalIncludeDirectories>
<PreprocessorDefinitions>MI_DEBUG=3;_MBCS;%(PreprocessorDefinitions);</PreprocessorDefinitions>
<CompileAs>Default</CompileAs>
</ClCompile>
<PostBuildEvent>
<Command>
@ -144,6 +146,7 @@
<FavorSizeOrSpeed>Neither</FavorSizeOrSpeed>
<OmitFramePointers>false</OmitFramePointers>
<EnableFiberSafeOptimizations>false</EnableFiberSafeOptimizations>
<CompileAs>Default</CompileAs>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
@ -174,6 +177,7 @@
<FavorSizeOrSpeed>Neither</FavorSizeOrSpeed>
<OmitFramePointers>false</OmitFramePointers>
<EnableFiberSafeOptimizations>false</EnableFiberSafeOptimizations>
<CompileAs>Default</CompileAs>
</ClCompile>
<Link>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
@ -217,6 +221,7 @@
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
</ClCompile>
<ClCompile Include="..\..\src\alloc-posix.c" />
<ClCompile Include="..\..\src\alloc.c" />
<ClCompile Include="..\..\src\heap.c" />
<ClCompile Include="..\..\src\init.c" />

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@ -53,6 +53,9 @@
<ClCompile Include="..\..\src\memory.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="..\..\src\alloc-posix.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="$(ProjectDir)..\..\include\mimalloc.h">
@ -68,4 +71,4 @@
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
</Project>
</Project>

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@ -66,33 +66,35 @@ static inline void* mi_atomic_exchange_ptr(volatile void** p, void* exchange) {
#include <windows.h>
#include <intrin.h>
#if (MI_INTPTR_SIZE==8)
typedef LONG64 msc_intptr_t;
#define RC64(f) f##64
#else
typedef LONG msc_intptr_t;
#define RC64(f) f
#endif
static inline uintptr_t mi_atomic_increment(volatile uintptr_t* p) {
return (uintptr_t)RC64(_InterlockedIncrement)((volatile intptr_t*)p);
return (uintptr_t)RC64(_InterlockedIncrement)((volatile msc_intptr_t*)p);
}
static inline uint32_t mi_atomic_increment32(volatile uint32_t* p) {
return (uint32_t)_InterlockedIncrement((volatile int32_t*)p);
return (uint32_t)_InterlockedIncrement((volatile LONG*)p);
}
static inline uintptr_t mi_atomic_decrement(volatile uintptr_t* p) {
return (uintptr_t)RC64(_InterlockedDecrement)((volatile intptr_t*)p);
return (uintptr_t)RC64(_InterlockedDecrement)((volatile msc_intptr_t*)p);
}
static inline uintptr_t mi_atomic_subtract(volatile uintptr_t* p, uintptr_t sub) {
return (uintptr_t)RC64(_InterlockedExchangeAdd)((volatile intptr_t*)p, -((intptr_t)sub)) - sub;
return (uintptr_t)RC64(_InterlockedExchangeAdd)((volatile msc_intptr_t*)p, -((msc_intptr_t)sub)) - sub;
}
static inline uint32_t mi_atomic_subtract32(volatile uint32_t* p, uint32_t sub) {
return (uint32_t)_InterlockedExchangeAdd((volatile int32_t*)p, -((int32_t)sub)) - sub;
return (uint32_t)_InterlockedExchangeAdd((volatile LONG*)p, -((LONG)sub)) - sub;
}
static inline bool mi_atomic_compare_exchange32(volatile uint32_t* p, uint32_t exchange, uint32_t compare) {
return ((int32_t)compare == _InterlockedCompareExchange((volatile int32_t*)p, (int32_t)exchange, (int32_t)compare));
return ((int32_t)compare == _InterlockedCompareExchange((volatile LONG*)p, (LONG)exchange, (LONG)compare));
}
static inline bool mi_atomic_compare_exchange(volatile uintptr_t* p, uintptr_t exchange, uintptr_t compare) {
return (compare == RC64(_InterlockedCompareExchange)((volatile intptr_t*)p, (intptr_t)exchange, (intptr_t)compare));
return (compare == RC64(_InterlockedCompareExchange)((volatile msc_intptr_t*)p, (msc_intptr_t)exchange, (msc_intptr_t)compare));
}
static inline uintptr_t mi_atomic_exchange(volatile uintptr_t* p, uintptr_t exchange) {
return (uintptr_t)RC64(_InterlockedExchange)((volatile intptr_t*)p, (intptr_t)exchange);
return (uintptr_t)RC64(_InterlockedExchange)((volatile msc_intptr_t*)p, (msc_intptr_t)exchange);
}
static inline uintptr_t mi_atomic_read(volatile uintptr_t* p) {
return *p;

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@ -92,7 +92,7 @@ void _mi_stats_done(mi_stats_t* stats);
void* _mi_page_malloc(mi_heap_t* heap, mi_page_t* page, size_t size) mi_attr_noexcept; // called from `_mi_malloc_generic`
void* _mi_heap_malloc_zero(mi_heap_t* heap, size_t size, bool zero);
void* _mi_realloc_zero(void* p, size_t size, bool zero);
mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* page, void* p);
mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* page, const void* p);
void _mi_free_delayed_block(mi_block_t* block);
#if MI_DEBUG>1

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@ -130,7 +130,7 @@ typedef union mi_page_flags_u {
// Thread free list.
// We use 2 bits of the pointer for the `use_delayed_free` and `delayed_freeing` flags.
typedef union mi_thread_free_u {
uintptr_t value;
volatile uintptr_t value;
struct {
mi_delayed_t delayed:2;
#if MI_INTPTR_SIZE==8

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@ -41,6 +41,7 @@ terms of the MIT license. A copy of the license can be found in the file
#define mi_attr_malloc
#define mi_attr_alloc_size(s)
#define mi_attr_alloc_size2(s1,s2)
#define mi_cdecl __cdecl
#elif defined(__GNUC__) || defined(__clang__)
#define mi_decl_thread __thread
#define mi_decl_export __attribute__((visibility("default")))
@ -51,7 +52,8 @@ terms of the MIT license. A copy of the license can be found in the file
#define mi_attr_alloc_size2(s1,s2)
#else
#define mi_attr_alloc_size(s) __attribute__((alloc_size(s)))
#define mi_attr_alloc_size2(s1,s2) __attribute__((alloc_size(s1,s2)))
#define mi_attr_alloc_size2(s1,s2) __attribute__((alloc_size(s1,s2)))
#define mi_cdecl // leads to warnings... __attribute__((cdecl))
#endif
#else
#define mi_decl_thread __thread
@ -60,6 +62,7 @@ terms of the MIT license. A copy of the license can be found in the file
#define mi_attr_malloc
#define mi_attr_alloc_size(s)
#define mi_attr_alloc_size2(s1,s2)
#define mi_cdecl
#endif
// ------------------------------------------------------
@ -104,8 +107,8 @@ mi_decl_export mi_decl_allocator void* mi_reallocf(void* p, size_t newsize)
mi_decl_export mi_decl_allocator void* mi_rezalloc(void* p, size_t newsize) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_export mi_decl_allocator void* mi_recalloc(void* p, size_t count, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(2,3);
mi_decl_export size_t mi_usable_size(void* p) mi_attr_noexcept;
mi_decl_export size_t mi_good_size(size_t size) mi_attr_noexcept;
mi_decl_export size_t mi_usable_size(const void* p) mi_attr_noexcept;
mi_decl_export size_t mi_good_size(size_t size) mi_attr_noexcept;
mi_decl_export void mi_collect(bool force) mi_attr_noexcept;
mi_decl_export void mi_stats_print(FILE* out) mi_attr_noexcept;
@ -186,7 +189,7 @@ typedef struct mi_heap_area_s {
size_t block_size; // size in bytes of each block
} mi_heap_area_t;
typedef bool (mi_block_visit_fun)(const mi_heap_t* heap, const mi_heap_area_t* area, void* block, size_t block_size, void* arg);
typedef bool (mi_cdecl mi_block_visit_fun)(const mi_heap_t* heap, const mi_heap_area_t* area, void* block, size_t block_size, void* arg);
mi_decl_export bool mi_heap_visit_blocks(const mi_heap_t* heap, bool visit_all_blocks, mi_block_visit_fun* visitor, void* arg);
@ -232,8 +235,38 @@ mi_decl_export long mi_option_get(mi_option_t option);
mi_decl_export void mi_option_set(mi_option_t option, long value);
mi_decl_export void mi_option_set_default(mi_option_t option, long value);
// ----------------------------------------------------------------------------------
// mi prefixed implementations of various posix, unix, and C++ allocation functions.
// -----------------------------------------------------------------------------------
mi_decl_export size_t mi_malloc_size(const void* p) mi_attr_noexcept;
mi_decl_export size_t mi_malloc_usable_size(const void *p) mi_attr_noexcept;
mi_decl_export void mi_cfree(void* p) mi_attr_noexcept;
mi_decl_export int mi_posix_memalign(void** p, size_t alignment, size_t size) mi_attr_noexcept;
mi_decl_export int mi__posix_memalign(void** p, size_t alignment, size_t size) mi_attr_noexcept;
mi_decl_export mi_decl_allocator void* mi_memalign(size_t alignment, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_export mi_decl_allocator void* mi_valloc(size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_export mi_decl_allocator void* mi_pvalloc(size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_export mi_decl_allocator void* mi_aligned_alloc(size_t alignment, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_export mi_decl_allocator void* mi_reallocarray(void* p, size_t count, size_t size) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(2,3);
mi_decl_export void mi_free_size(void* p, size_t size) mi_attr_noexcept;
mi_decl_export void mi_free_size_aligned(void* p, size_t size, size_t alignment) mi_attr_noexcept;
mi_decl_export void mi_free_aligned(void* p, size_t alignment) mi_attr_noexcept;
#ifdef __cplusplus
}
#endif
#ifdef __cplusplus
#include <cstddef>
mi_decl_export void* mi_new(std::size_t n) noexcept(false) mi_attr_malloc mi_attr_alloc_size(1);
#if (__cplusplus > 201402L || defined(__cpp_aligned_new))
#include <new>
mi_decl_export void* mi_new_aligned(std::size_t n, std::align_val_t alignment) noexcept(false) mi_attr_malloc mi_attr_alloc_size(1);
#endif
#endif
#endif

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@ -25,15 +25,19 @@ terms of the MIT license. A copy of the license can be found in the file
#if (defined(__GNUC__) || defined(__clang__)) && !defined(__MACH__)
// use aliasing to alias the exported function to one of our `mi_` functions
#define MI_FORWARD(fun) __attribute__((alias(#fun), used, visibility("default")))
#define MI_FORWARD1(fun,x) MI_FORWARD(fun)
#define MI_FORWARD2(fun,x,y) MI_FORWARD(fun)
#define MI_FORWARD0(fun,x) MI_FORWARD(fun)
#define MI_FORWARD(fun) __attribute__((alias(#fun), used, visibility("default")))
#define MI_FORWARD1(fun,x) MI_FORWARD(fun)
#define MI_FORWARD2(fun,x,y) MI_FORWARD(fun)
#define MI_FORWARD3(fun,x,y,z) MI_FORWARD(fun)
#define MI_FORWARD0(fun,x) MI_FORWARD(fun)
#define MI_FORWARD02(fun,x,y) MI_FORWARD(fun)
#else
// use forwarding by calling our `mi_` function
#define MI_FORWARD1(fun,x) { return fun(x); }
#define MI_FORWARD2(fun,x,y) { return fun(x,y); }
#define MI_FORWARD0(fun,x) { fun(x); }
#define MI_FORWARD1(fun,x) { return fun(x); }
#define MI_FORWARD2(fun,x,y) { return fun(x,y); }
#define MI_FORWARD3(fun,x,y,z) { return fun(x,y,z); }
#define MI_FORWARD0(fun,x) { fun(x); }
#define MI_FORWARD02(fun,x,y) { fun(x,y); }
#endif
#if defined(__APPLE__) && defined(MI_SHARED_LIB_EXPORT) && defined(MI_INTERPOSE)
@ -59,9 +63,7 @@ terms of the MIT license. A copy of the license can be found in the file
void* malloc(size_t size) mi_attr_noexcept MI_FORWARD1(mi_malloc, size);
void* calloc(size_t size, size_t n) mi_attr_noexcept MI_FORWARD2(mi_calloc, size, n);
void* realloc(void* p, size_t newsize) mi_attr_noexcept MI_FORWARD2(mi_realloc, p, newsize);
void free(void* p) mi_attr_noexcept MI_FORWARD0(mi_free, p);
//char* strdup(const char* s) MI_FORWARD1(mi_strdup, s);
//char* strndup(const char* s, size_t n) MI_FORWARD2(mi_strndup, s, n);
void free(void* p) mi_attr_noexcept MI_FORWARD0(mi_free, p);
#endif
#if (defined(__GNUC__) || defined(__clang__)) && !defined(__MACH__)
@ -81,17 +83,42 @@ terms of the MIT license. A copy of the license can be found in the file
#include <new>
void operator delete(void* p) noexcept MI_FORWARD0(mi_free,p);
void operator delete[](void* p) noexcept MI_FORWARD0(mi_free,p);
void* operator new(std::size_t n) noexcept(false) MI_FORWARD1(mi_malloc,n);
void* operator new[](std::size_t n) noexcept(false) MI_FORWARD1(mi_malloc,n);
#if (__cplusplus >= 201703L)
void* operator new( std::size_t n, std::align_val_t align) noexcept(false) MI_FORWARD2(mi_malloc_aligned,n,align);
void* operator new[]( std::size_t n, std::align_val_t align) noexcept(false) MI_FORWARD2(mi_malloc_aligned,n,align);
void* operator new(std::size_t n) noexcept(false) { return mi_new(n); }
void* operator new[](std::size_t n) noexcept(false) { return mi_new(n); }
void* operator new (std::size_t n, const std::nothrow_t& tag) noexcept MI_FORWARD1(mi_malloc, n);
void* operator new[](std::size_t n, const std::nothrow_t& tag) noexcept MI_FORWARD1(mi_malloc, n);
#if (__cplusplus >= 201402L)
void operator delete (void* p, std::size_t sz) MI_FORWARD02(mi_free_size,p,sz);
void operator delete[](void* p, std::size_t sz) MI_FORWARD02(mi_free_size,p,sz);
#endif
#if (__cplusplus > 201402L || defined(__cpp_aligned_new))
void operator delete (void* p, std::align_val_t al) noexcept { mi_free_aligned(p, static_cast<size_t>(al)); }
void operator delete[](void* p, std::align_val_t al) noexcept { mi_free_aligned(p, static_cast<size_t>(al)); }
void operator delete (void* p, std::size_t sz, std::align_val_t al) noexcept { mi_free_size_aligned(p, sz, static_cast<size_t>(al)); };
void operator delete[](void* p, std::size_t sz, std::align_val_t al) noexcept { mi_free_size_aligned(p, sz, static_cast<size_t>(al)); };
void* operator new( std::size_t n, std::align_val_t al) noexcept(false) { return mi_new_aligned(n,al); }
void* operator new[]( std::size_t n, std::align_val_t al) noexcept(false) { return mi_new_aligned(n,al); }
void* operator new (std::size_t n, std::align_val_t al, const std::nothrow_t&) noexcept { return mi_malloc_aligned(n, static_cast<size_t>(al)); }
void* operator new[](std::size_t n, std::align_val_t al, const std::nothrow_t&) noexcept { return mi_malloc_aligned(n, static_cast<size_t>(al)); }
#endif
#else
// ------------------------------------------------------
// With a C compiler we override the new/delete operators
// by defining the mangled C++ names of the operators (as
// With a C compiler we cannot override the new/delete operators
// as the standard requires calling into `get_new_handler` and/or
// throwing C++ exceptions (and we cannot do that from C). So, we
// hope the standard new uses `malloc` internally which will be
// redirected anyways.
// ------------------------------------------------------
#if 0
// ------------------------------------------------------
// Override by defining the mangled C++ names of the operators (as
// used by GCC and CLang).
// See <https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling>
// ------------------------------------------------------
@ -110,6 +137,7 @@ terms of the MIT license. A copy of the license can be found in the file
#else
#error "define overloads for new/delete for this platform (just for performance, can be skipped)"
#endif
#endif
#endif // __cplusplus
@ -121,57 +149,18 @@ extern "C" {
// Posix & Unix functions definitions
// ------------------------------------------------------
#include <errno.h>
#ifndef EINVAL
#define EINVAL 22
#endif
#ifndef ENOMEM
#define ENOMEM 12
#endif
void* reallocf(void* p, size_t newsize) MI_FORWARD2(mi_reallocf,p,newsize);
size_t malloc_size(void* p) MI_FORWARD1(mi_usable_size,p);
size_t malloc_usable_size(void *p) MI_FORWARD1(mi_usable_size,p);
void cfree(void* p) MI_FORWARD0(mi_free, p);
int posix_memalign(void** p, size_t alignment, size_t size) {
// TODO: the spec says we should return EINVAL also if alignment is not a power of 2.
// The spec also dictates we should not modify `*p` on an error. (issue#27)
// <http://man7.org/linux/man-pages/man3/posix_memalign.3.html>
if (alignment % sizeof(void*) != 0) return EINVAL; // no `p==NULL` check as it is declared as non-null
if ((alignment & (~alignment + 1)) != alignment) return EINVAL; // not a power of 2
void* q = mi_malloc_aligned(size, alignment);
if (q==NULL && size != 0) return ENOMEM;
*p = q;
return 0;
}
void* memalign(size_t alignment, size_t size) {
return mi_malloc_aligned(size, alignment);
}
void* valloc(size_t size) {
return mi_malloc_aligned(size, _mi_os_page_size());
}
void* pvalloc(size_t size) {
size_t psize = _mi_os_page_size();
if (size >= SIZE_MAX - psize) return NULL; // overflow
size_t asize = ((size + psize - 1) / psize) * psize;
return mi_malloc_aligned(asize, psize);
}
void* aligned_alloc(size_t alignment, size_t size) {
return mi_malloc_aligned(size, alignment);
}
void* reallocarray( void* p, size_t count, size_t size ) { // BSD
void* newp = mi_reallocn(p,count,size);
if (newp==NULL) errno = ENOMEM;
return newp;
}
// no forwarding here due to aliasing/name mangling issues
void* valloc(size_t size) { return mi_valloc(size); }
void* pvalloc(size_t size) { return mi_pvalloc(size); }
void* reallocarray(void* p, size_t count, size_t size) { return mi_reallocarray(p, count, size); }
void* memalign(size_t alignment, size_t size) { return mi_memalign(alignment, size); }
void* aligned_alloc(size_t alignment, size_t size) { return mi_aligned_alloc(alignment, size); }
int posix_memalign(void** p, size_t alignment, size_t size) { return mi_posix_memalign(p, alignment, size); }
#if defined(__GLIBC__) && defined(__linux__)
// forward __libc interface (needed for glibc-based Linux distributions)
@ -181,18 +170,10 @@ void* reallocarray( void* p, size_t count, size_t size ) { // BSD
void __libc_free(void* p) MI_FORWARD0(mi_free,p);
void __libc_cfree(void* p) MI_FORWARD0(mi_free,p);
void* __libc_memalign(size_t alignment, size_t size) {
return memalign(alignment,size);
}
void* __libc_valloc(size_t size) {
return valloc(size);
}
void* __libc_pvalloc(size_t size) {
return pvalloc(size);
}
int __posix_memalign(void** p, size_t alignment, size_t size) {
return posix_memalign(p,alignment,size);
}
void* __libc_valloc(size_t size) { return mi_valloc(size); }
void* __libc_pvalloc(size_t size) { return mi_pvalloc(size); }
void* __libc_memalign(size_t alignment, size_t size) { return mi_memalign(alignment,size); }
int __posix_memalign(void** p, size_t alignment, size_t size) { return mi_posix_memalign(p,alignment,size); }
#endif
#ifdef __cplusplus

82
src/alloc-posix.c Normal file
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@ -0,0 +1,82 @@
/* ----------------------------------------------------------------------------
Copyright (c) 2018,2019, Microsoft Research, Daan Leijen
This is free software; you can redistribute it and/or modify it under the
terms of the MIT license. A copy of the license can be found in the file
"LICENSE" at the root of this distribution.
-----------------------------------------------------------------------------*/
// ------------------------------------------------------------------------
// mi prefixed publi definitions of various Posix, Unix, and C++ functions
// for convenience and used when overriding these functions.
// ------------------------------------------------------------------------
#include "mimalloc.h"
#include "mimalloc-internal.h"
// ------------------------------------------------------
// Posix & Unix functions definitions
// ------------------------------------------------------
#include <errno.h>
#ifndef EINVAL
#define EINVAL 22
#endif
#ifndef ENOMEM
#define ENOMEM 12
#endif
size_t mi_malloc_size(const void* p) mi_attr_noexcept {
return mi_usable_size(p);
}
size_t mi_malloc_usable_size(const void *p) mi_attr_noexcept {
return mi_usable_size(p);
}
void mi_cfree(void* p) mi_attr_noexcept {
mi_free(p);
}
int mi_posix_memalign(void** p, size_t alignment, size_t size) mi_attr_noexcept {
// Note: The spec dictates we should not modify `*p` on an error. (issue#27)
// <http://man7.org/linux/man-pages/man3/posix_memalign.3.html>
if (p == NULL) return EINVAL;
if (alignment % sizeof(void*) != 0) return EINVAL; // natural alignment
if ((alignment & (alignment - 1)) != 0) return EINVAL; // not a power of 2
void* q = mi_malloc_aligned(size, alignment);
if (q==NULL && size != 0) return ENOMEM;
*p = q;
return 0;
}
int mi__posix_memalign(void** p, size_t alignment, size_t size) mi_attr_noexcept {
return mi_posix_memalign(p, alignment, size);
}
void* mi_memalign(size_t alignment, size_t size) mi_attr_noexcept {
return mi_malloc_aligned(size, alignment);
}
void* mi_valloc(size_t size) mi_attr_noexcept {
return mi_malloc_aligned(size, _mi_os_page_size());
}
void* mi_pvalloc(size_t size) mi_attr_noexcept {
size_t psize = _mi_os_page_size();
if (size >= SIZE_MAX - psize) return NULL; // overflow
size_t asize = ((size + psize - 1) / psize) * psize;
return mi_malloc_aligned(asize, psize);
}
void* mi_aligned_alloc(size_t alignment, size_t size) mi_attr_noexcept {
return mi_malloc_aligned(size, alignment);
}
void* mi_reallocarray( void* p, size_t count, size_t size ) mi_attr_noexcept { // BSD
void* newp = mi_reallocn(p,count,size);
if (newp==NULL) errno = ENOMEM;
return newp;
}

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@ -106,12 +106,12 @@ void* mi_zalloc(size_t size) mi_attr_noexcept {
// multi-threaded free
static mi_decl_noinline void _mi_free_block_mt(mi_page_t* page, mi_block_t* block)
{
mi_thread_free_t tfree;
mi_thread_free_t tfreex;
mi_thread_free_t tfree = {0};
mi_thread_free_t tfreex = {0};
bool use_delayed;
do {
tfreex = tfree = page->thread_free;
tfreex.value = tfree.value = page->thread_free.value;
use_delayed = (tfree.delayed == MI_USE_DELAYED_FREE);
if (mi_unlikely(use_delayed)) {
// unlikely: this only happens on the first concurrent free in a page that is in the full list
@ -143,7 +143,7 @@ static mi_decl_noinline void _mi_free_block_mt(mi_page_t* page, mi_block_t* bloc
// and reset the MI_DELAYED_FREEING flag
do {
tfreex = tfree = page->thread_free;
tfreex.value = tfree.value = page->thread_free.value;
tfreex.delayed = MI_NO_DELAYED_FREE;
} while (!mi_atomic_compare_exchange((volatile uintptr_t*)&page->thread_free, tfreex.value, tfree.value));
}
@ -177,7 +177,7 @@ static inline void _mi_free_block(mi_page_t* page, bool local, mi_block_t* block
// Adjust a block that was allocated aligned, to the actual start of the block in the page.
mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* page, void* p) {
mi_block_t* _mi_page_ptr_unalign(const mi_segment_t* segment, const mi_page_t* page, const void* p) {
mi_assert_internal(page!=NULL && p!=NULL);
size_t diff = (uint8_t*)p - _mi_page_start(segment, page, NULL);
size_t adjust = (diff % page->block_size);
@ -256,7 +256,7 @@ void _mi_free_delayed_block(mi_block_t* block) {
}
// Bytes available in a block
size_t mi_usable_size(void* p) mi_attr_noexcept {
size_t mi_usable_size(const void* p) mi_attr_noexcept {
if (p==NULL) return 0;
const mi_segment_t* segment = _mi_ptr_segment(p);
const mi_page_t* page = _mi_segment_page_of(segment,p);
@ -282,8 +282,11 @@ size_t mi_usable_size(void* p) mi_attr_noexcept {
#ifdef __cplusplus
void* _mi_externs[] = {
(void*)&_mi_page_malloc,
(void*)&mi_malloc_small,
(void*)&mi_malloc,
(void*)&mi_malloc_small,
(void*)&mi_heap_malloc,
(void*)&mi_heap_zalloc,
(void*)&mi_heap_malloc_small
};
@ -294,6 +297,24 @@ void* _mi_externs[] = {
// Allocation extensions
// ------------------------------------------------------
void mi_free_size(void* p, size_t size) mi_attr_noexcept {
UNUSED_RELEASE(size);
mi_assert(size <= mi_usable_size(p));
mi_free(p);
}
void mi_free_size_aligned(void* p, size_t size, size_t alignment) mi_attr_noexcept {
UNUSED_RELEASE(alignment);
mi_assert(((uintptr_t)p % alignment) == 0);
mi_free_size(p,size);
}
void mi_free_aligned(void* p, size_t alignment) mi_attr_noexcept {
UNUSED_RELEASE(alignment);
mi_assert(((uintptr_t)p % alignment) == 0);
mi_free(p);
}
extern inline void* mi_heap_calloc(mi_heap_t* heap, size_t count, size_t size) mi_attr_noexcept {
size_t total;
if (mi_mul_overflow(count,size,&total)) return NULL;
@ -444,3 +465,42 @@ char* mi_heap_realpath(mi_heap_t* heap, const char* fname, char* resolved_name)
char* mi_realpath(const char* fname, char* resolved_name) mi_attr_noexcept {
return mi_heap_realpath(mi_get_default_heap(),fname,resolved_name);
}
#ifdef __cplusplus
#include <new>
static mi_decl_noinline void* mi_new_try(std::size_t n) noexcept(false) {
void* p;
do {
std::new_handler h = std::get_new_handler();
if (h==NULL) throw std::bad_alloc();
h();
// and try again
p = mi_malloc(n);
} while (p==NULL);
return p;
}
// spit out `new_try` for better assembly code
void* mi_new(std::size_t n) noexcept(false) {
void* p = mi_malloc(n);
if (mi_likely(p != NULL)) return p;
else return mi_new_try(n);
}
#if (__cplusplus > 201402L || defined(__cpp_aligned_new))
// for aligned allocation its fine as it is not inlined anyways
void* mi_new_aligned(std::size_t n, std::align_val_t alignment) noexcept(false) {
void* p;
while ((p = mi_malloc_aligned(n,static_cast<size_t>(alignment))) == NULL) {
std::new_handler h = std::get_new_handler();
if (h==NULL) throw std::bad_alloc();
h();
// and try again
};
return p;
}
#endif
#endif

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@ -84,7 +84,7 @@ typedef enum mi_collect_e {
static bool mi_heap_page_collect(mi_heap_t* heap, mi_page_queue_t* pq, mi_page_t* page, void* arg_collect, void* arg2 ) {
UNUSED(arg2);
UNUSED(heap);
mi_collect_t collect = (mi_collect_t)arg_collect;
mi_collect_t collect = *((mi_collect_t*)arg_collect);
_mi_page_free_collect(page);
if (mi_page_all_free(page)) {
// no more used blocks, free the page. TODO: should we retire here and be less aggressive?
@ -131,7 +131,7 @@ static void mi_heap_collect_ex(mi_heap_t* heap, mi_collect_t collect)
_mi_heap_delayed_free(heap);
// collect all pages owned by this thread
mi_heap_visit_pages(heap, &mi_heap_page_collect, (void*)(collect), NULL);
mi_heap_visit_pages(heap, &mi_heap_page_collect, &collect, NULL);
mi_assert_internal( collect != ABANDON || heap->thread_delayed_free == NULL );
// collect segment caches
@ -480,7 +480,7 @@ static bool mi_heap_visit_areas_page(mi_heap_t* heap, mi_page_queue_t* pq, mi_pa
// Visit all heap pages as areas
static bool mi_heap_visit_areas(const mi_heap_t* heap, mi_heap_area_visit_fun* visitor, void* arg) {
if (visitor == NULL) return false;
return mi_heap_visit_pages((mi_heap_t*)heap, &mi_heap_visit_areas_page, visitor, arg);
return mi_heap_visit_pages((mi_heap_t*)heap, &mi_heap_visit_areas_page, (void*)(visitor), arg); // note: function pointer to void* :-{
}
// Just to pass arguments

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@ -426,7 +426,7 @@ static void mi_process_done(void) {
// C++: use static initialization to detect process start
static bool _mi_process_init(void) {
mi_process_init();
return (mi_main_thread_id != 0);
return (_mi_heap_main.thread_id != 0);
}
static bool mi_initialized = _mi_process_init();

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@ -56,7 +56,7 @@ static inline uint8_t mi_bsr32(uint32_t x);
#include <intrin.h>
static inline uint8_t mi_bsr32(uint32_t x) {
uint32_t idx;
_BitScanReverse(&idx, x);
_BitScanReverse((DWORD*)&idx, x);
return idx;
}
#elif defined(__GNUC__) || defined(__clang__)

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@ -114,7 +114,7 @@ void _mi_page_use_delayed_free(mi_page_t* page, bool enable) {
mi_thread_free_t tfreex;
do {
tfreex = tfree = page->thread_free;
tfreex.value = tfree.value = page->thread_free.value;
tfreex.delayed = (enable ? MI_USE_DELAYED_FREE : MI_NO_DELAYED_FREE);
if (mi_unlikely(tfree.delayed == MI_DELAYED_FREEING)) {
mi_atomic_yield(); // delay until outstanding MI_DELAYED_FREEING are done.
@ -137,10 +137,10 @@ void _mi_page_use_delayed_free(mi_page_t* page, bool enable) {
static void mi_page_thread_free_collect(mi_page_t* page)
{
mi_block_t* head;
mi_thread_free_t tfree;
mi_thread_free_t tfreex;
mi_thread_free_t tfree = {0};
mi_thread_free_t tfreex = {0};
do {
tfreex = tfree = page->thread_free;
tfreex.value = tfree.value = page->thread_free.value;
head = (mi_block_t*)((uintptr_t)tfree.head << MI_TF_PTR_SHIFT);
tfreex.head = 0;
} while (!mi_atomic_compare_exchange((volatile uintptr_t*)&page->thread_free, tfreex.value, tfree.value));

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@ -21,5 +21,6 @@ terms of the MIT license. A copy of the license can be found in the file
#include "heap.c"
#include "alloc.c"
#include "alloc-aligned.c"
#include "alloc-posix.c"
#include "init.c"
#include "options.c"

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@ -13,17 +13,25 @@ if (NOT CMAKE_BUILD_TYPE)
endif()
# Import mimalloc (if installed)
find_package(mimalloc 1.0 REQUIRED)
find_package(mimalloc 1.0 REQUIRED NO_SYSTEM_ENVIRONMENT_PATH)
message(STATUS "${MIMALLOC_INCLUDE_DIR}")
# Tests
add_executable(static-override main-override.c)
target_link_libraries(static-override PUBLIC mimalloc-static)
add_executable(static-override-cxx main-override.cpp)
target_link_libraries(static-override-cxx PUBLIC mimalloc-static)
add_executable(dynamic-override main-override.c)
target_link_libraries(dynamic-override PUBLIC mimalloc)
add_executable(dynamic-override-cxx main-override.cpp)
target_link_libraries(dynamic-override-cxx PUBLIC mimalloc)
# with a static library
add_executable(static-override main-override.c)
target_link_libraries(static-override PUBLIC mimalloc-static)
add_executable(static-override-cxx main-override.cpp)
target_link_libraries(static-override-cxx PUBLIC mimalloc-static)
# and with a static object file; need to link with pthread explicitly :-(
add_executable(static-override-obj main-override.c $<TARGET_OBJECTS:mimalloc-obj>)
target_include_directories(static-override-obj PUBLIC $<TARGET_PROPERTY:mimalloc-obj,INTERFACE_INCLUDE_DIRECTORIES>)
target_link_libraries(static-override-obj PUBLIC pthread)

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@ -21,7 +21,7 @@ public:
};
int main() {
mi_stats_reset();
mi_stats_reset();
atexit(free_p);
void* p1 = malloc(78);
void* p2 = malloc(24);
@ -36,8 +36,11 @@ int main() {
free(s);
Test* t = new Test(42);
delete t;
int err = mi_posix_memalign(&p1,32,60);
if (!err) free(p1);
free(p);
mi_collect(true);
// mi_stats_print(NULL); // MIMALLOC_VERBOSE env is set to 2
mi_stats_print(NULL); // MIMALLOC_VERBOSE env is set to 2
return 0;
}

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@ -1,17 +0,0 @@
#include <stdio.h>
#include <assert.h>
#include <rcmalloc.h>
int main() {
void* p1 = rc_malloc(16);
void* p2 = rc_malloc(16);
rc_free(p1);
rc_free(p2);
p1 = rc_malloc(16);
p2 = rc_malloc(16);
rc_free(p1);
rc_free(p2);
rc_collect(true);
rc_stats_print();
return 0;
}

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@ -87,33 +87,33 @@ int main() {
// ---------------------------------------------------
#if defined(MI_MALLOC_OVERRIDE) && !defined(_WIN32)
CHECK_BODY("posix_memalign1", {
void* p = &main;
void* p = &p;
int err = posix_memalign(&p, sizeof(void*), 32);
mi_assert((err==0 && (uintptr_t)p % sizeof(void*) == 0) || p==&main);
mi_assert((err==0 && (uintptr_t)p % sizeof(void*) == 0) || p==&p);
mi_free(p);
result = (err==0);
});
CHECK_BODY("posix_memalign_no_align", {
void* p = &main;
void* p = &p;
int err = posix_memalign(&p, 3, 32);
mi_assert(p==&main);
mi_assert(p==&p);
result = (err==EINVAL);
});
CHECK_BODY("posix_memalign_zero", {
void* p = &main;
void* p = &p;
int err = posix_memalign(&p, sizeof(void*), 0);
mi_free(p);
result = (err==0);
});
CHECK_BODY("posix_memalign_nopow2", {
void* p = &main;
void* p = &p;
int err = posix_memalign(&p, 3*sizeof(void*), 32);
result = (err==EINVAL && p==&main);
result = (err==EINVAL && p==&p);
});
CHECK_BODY("posix_memalign_nomem", {
void* p = &main;
void* p = &p;
int err = posix_memalign(&p, sizeof(void*), SIZE_MAX);
result = (err==ENOMEM && p==&main);
result = (err==ENOMEM && p==&p);
});
#endif