mirror of
https://github.com/microsoft/mimalloc.git
synced 2025-07-06 19:38:41 +03:00
Merge branch 'dev' into dev
This commit is contained in:
commit
f33aa58d88
79 changed files with 3509 additions and 3833 deletions
|
@ -71,8 +71,8 @@ int _mi_prim_free(void* addr, size_t size) {
|
|||
extern void* emmalloc_memalign(size_t alignment, size_t size);
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||||
// Note: the `try_alignment` is just a hint and the returned pointer is not guaranteed to be aligned.
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||||
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
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MI_UNUSED(try_alignment); MI_UNUSED(allow_large); MI_UNUSED(commit);
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||||
int _mi_prim_alloc(void* hint_addr, size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
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MI_UNUSED(try_alignment); MI_UNUSED(allow_large); MI_UNUSED(commit); MI_UNUSED(hint_addr);
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*is_large = false;
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||||
// TODO: Track the highest address ever seen; first uses of it are zeroes.
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||||
// That assumes no one else uses sbrk but us (they could go up,
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||||
|
|
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@ -418,9 +418,9 @@ static inline malloc_zone_t* mi_get_default_zone(void)
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}
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||||
|
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#if defined(__clang__)
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__attribute__((constructor(0)))
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__attribute__((constructor(101))) // highest priority
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#else
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__attribute__((constructor)) // seems not supported by g++-11 on the M1
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__attribute__((constructor)) // priority level is not supported by gcc
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#endif
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__attribute__((used))
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static void _mi_macos_override_malloc(void) {
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|
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@ -25,3 +25,52 @@ terms of the MIT license. A copy of the license can be found in the file
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#include "unix/prim.c" // mmap() (Linux, macOSX, BSD, Illumnos, Haiku, DragonFly, etc.)
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#endif
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// Generic process initialization
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#ifndef MI_PRIM_HAS_PROCESS_ATTACH
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#if defined(__GNUC__) || defined(__clang__)
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||||
// gcc,clang: use the constructor/destructor attribute
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||||
// which for both seem to run before regular constructors/destructors
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||||
#if defined(__clang__)
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#define mi_attr_constructor __attribute__((constructor(101)))
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#define mi_attr_destructor __attribute__((destructor(101)))
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#else
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||||
#define mi_attr_constructor __attribute__((constructor))
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#define mi_attr_destructor __attribute__((destructor))
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#endif
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static void mi_attr_constructor mi_process_attach(void) {
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_mi_process_load();
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}
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||||
static void mi_attr_destructor mi_process_detach(void) {
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_mi_process_done();
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}
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#elif defined(__cplusplus)
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||||
// C++: use static initialization to detect process start/end
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// This is not guaranteed to be first/last but the best we can generally do?
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struct mi_init_done_t {
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mi_init_done_t() {
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||||
_mi_process_load();
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||||
}
|
||||
~mi_init_done_t() {
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||||
_mi_process_done();
|
||||
}
|
||||
};
|
||||
static mi_init_done_t mi_init_done;
|
||||
#else
|
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#pragma message("define a way to call _mi_process_load/done on your platform")
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#endif
|
||||
#endif
|
||||
|
||||
// Generic allocator init/done callback
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||||
#ifndef MI_PRIM_HAS_ALLOCATOR_INIT
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bool _mi_is_redirected(void) {
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return false;
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||||
}
|
||||
bool _mi_allocator_init(const char** message) {
|
||||
if (message != NULL) { *message = NULL; }
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return true;
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}
|
||||
void _mi_allocator_done(void) {
|
||||
// nothing to do
|
||||
}
|
||||
#endif
|
||||
|
|
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@ -27,6 +27,7 @@ terms of the MIT license. A copy of the license can be found in the file
|
|||
#include <sys/mman.h> // mmap
|
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#include <unistd.h> // sysconf
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||||
#include <fcntl.h> // open, close, read, access
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||||
#include <stdlib.h> // getenv, arc4random_buf
|
||||
|
||||
#if defined(__linux__)
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#include <features.h>
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||||
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@ -139,6 +140,12 @@ void _mi_prim_mem_init( mi_os_mem_config_t* config )
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if (psize > 0) {
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config->page_size = (size_t)psize;
|
||||
config->alloc_granularity = (size_t)psize;
|
||||
#if defined(_SC_PHYS_PAGES)
|
||||
long pphys = sysconf(_SC_PHYS_PAGES);
|
||||
if (pphys > 0 && (size_t)pphys < (SIZE_MAX/(size_t)psize)) {
|
||||
config->physical_memory = (size_t)pphys * (size_t)psize;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
config->large_page_size = 2*MI_MiB; // TODO: can we query the OS for this?
|
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config->has_overcommit = unix_detect_overcommit();
|
||||
|
@ -181,10 +188,11 @@ int _mi_prim_free(void* addr, size_t size ) {
|
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|
||||
static int unix_madvise(void* addr, size_t size, int advice) {
|
||||
#if defined(__sun)
|
||||
return madvise((caddr_t)addr, size, advice); // Solaris needs cast (issue #520)
|
||||
int res = madvise((caddr_t)addr, size, advice); // Solaris needs cast (issue #520)
|
||||
#else
|
||||
return madvise(addr, size, advice);
|
||||
int res = madvise(addr, size, advice);
|
||||
#endif
|
||||
return (res==0 ? 0 : errno);
|
||||
}
|
||||
|
||||
static void* unix_mmap_prim(void* addr, size_t size, size_t try_alignment, int protect_flags, int flags, int fd) {
|
||||
|
@ -331,7 +339,7 @@ static void* unix_mmap(void* addr, size_t size, size_t try_alignment, int protec
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|||
// when large OS pages are enabled for mimalloc, we call `madvise` anyways.
|
||||
if (allow_large && _mi_os_use_large_page(size, try_alignment)) {
|
||||
if (unix_madvise(p, size, MADV_HUGEPAGE) == 0) {
|
||||
*is_large = true; // possibly
|
||||
// *is_large = true; // possibly
|
||||
};
|
||||
}
|
||||
#elif defined(__sun)
|
||||
|
@ -340,7 +348,7 @@ static void* unix_mmap(void* addr, size_t size, size_t try_alignment, int protec
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cmd.mha_pagesize = _mi_os_large_page_size();
|
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cmd.mha_cmd = MHA_MAPSIZE_VA;
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||||
if (memcntl((caddr_t)p, size, MC_HAT_ADVISE, (caddr_t)&cmd, 0, 0) == 0) {
|
||||
*is_large = true;
|
||||
// *is_large = true; // possibly
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
@ -350,14 +358,14 @@ static void* unix_mmap(void* addr, size_t size, size_t try_alignment, int protec
|
|||
}
|
||||
|
||||
// Note: the `try_alignment` is just a hint and the returned pointer is not guaranteed to be aligned.
|
||||
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
int _mi_prim_alloc(void* hint_addr, size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
mi_assert_internal(size > 0 && (size % _mi_os_page_size()) == 0);
|
||||
mi_assert_internal(commit || !allow_large);
|
||||
mi_assert_internal(try_alignment > 0);
|
||||
|
||||
*is_zero = true;
|
||||
int protect_flags = (commit ? (PROT_WRITE | PROT_READ) : PROT_NONE);
|
||||
*addr = unix_mmap(NULL, size, try_alignment, protect_flags, false, allow_large, is_large);
|
||||
*addr = unix_mmap(hint_addr, size, try_alignment, protect_flags, false, allow_large, is_large);
|
||||
return (*addr != NULL ? 0 : errno);
|
||||
}
|
||||
|
||||
|
@ -773,7 +781,6 @@ bool _mi_prim_random_buf(void* buf, size_t buf_len) {
|
|||
defined(__sun) || \
|
||||
(defined(__APPLE__) && (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_7))
|
||||
|
||||
#include <stdlib.h>
|
||||
bool _mi_prim_random_buf(void* buf, size_t buf_len) {
|
||||
arc4random_buf(buf, buf_len);
|
||||
return true;
|
||||
|
|
|
@ -119,8 +119,8 @@ static void* mi_prim_mem_grow(size_t size, size_t try_alignment) {
|
|||
}
|
||||
|
||||
// Note: the `try_alignment` is just a hint and the returned pointer is not guaranteed to be aligned.
|
||||
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
MI_UNUSED(allow_large); MI_UNUSED(commit);
|
||||
int _mi_prim_alloc(void* hint_addr, size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
MI_UNUSED(allow_large); MI_UNUSED(commit); MI_UNUSED(hint_addr);
|
||||
*is_large = false;
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||||
*is_zero = false;
|
||||
*addr = mi_prim_mem_grow(size, try_alignment);
|
||||
|
|
|
@ -118,6 +118,18 @@ void _mi_prim_mem_init( mi_os_mem_config_t* config )
|
|||
GetSystemInfo(&si);
|
||||
if (si.dwPageSize > 0) { config->page_size = si.dwPageSize; }
|
||||
if (si.dwAllocationGranularity > 0) { config->alloc_granularity = si.dwAllocationGranularity; }
|
||||
// get virtual address bits
|
||||
if ((uintptr_t)si.lpMaximumApplicationAddress > 0) {
|
||||
const size_t vbits = MI_INTPTR_BITS - mi_clz((uintptr_t)si.lpMaximumApplicationAddress);
|
||||
config->virtual_address_bits = vbits;
|
||||
}
|
||||
// get physical memory
|
||||
ULONGLONG memInKiB = 0;
|
||||
if (GetPhysicallyInstalledSystemMemory(&memInKiB)) {
|
||||
if (memInKiB > 0 && memInKiB < (SIZE_MAX / MI_KiB)) {
|
||||
config->physical_memory = memInKiB * MI_KiB;
|
||||
}
|
||||
}
|
||||
// get the VirtualAlloc2 function
|
||||
HINSTANCE hDll;
|
||||
hDll = LoadLibrary(TEXT("kernelbase.dll"));
|
||||
|
@ -191,7 +203,7 @@ static void* win_virtual_alloc_prim_once(void* addr, size_t size, size_t try_ali
|
|||
}
|
||||
#endif
|
||||
// on modern Windows try use VirtualAlloc2 for aligned allocation
|
||||
if (try_alignment > 1 && (try_alignment % _mi_os_page_size()) == 0 && pVirtualAlloc2 != NULL) {
|
||||
if (addr == NULL && try_alignment > 1 && (try_alignment % _mi_os_page_size()) == 0 && pVirtualAlloc2 != NULL) {
|
||||
MI_MEM_ADDRESS_REQUIREMENTS reqs = { 0, 0, 0 };
|
||||
reqs.Alignment = try_alignment;
|
||||
MI_MEM_EXTENDED_PARAMETER param = { {0, 0}, {0} };
|
||||
|
@ -279,14 +291,14 @@ static void* win_virtual_alloc(void* addr, size_t size, size_t try_alignment, DW
|
|||
return p;
|
||||
}
|
||||
|
||||
int _mi_prim_alloc(size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
int _mi_prim_alloc(void* hint_addr, size_t size, size_t try_alignment, bool commit, bool allow_large, bool* is_large, bool* is_zero, void** addr) {
|
||||
mi_assert_internal(size > 0 && (size % _mi_os_page_size()) == 0);
|
||||
mi_assert_internal(commit || !allow_large);
|
||||
mi_assert_internal(try_alignment > 0);
|
||||
*is_zero = true;
|
||||
int flags = MEM_RESERVE;
|
||||
if (commit) { flags |= MEM_COMMIT; }
|
||||
*addr = win_virtual_alloc(NULL, size, try_alignment, flags, false, allow_large, is_large);
|
||||
*addr = win_virtual_alloc(hint_addr, size, try_alignment, flags, false, allow_large, is_large);
|
||||
return (*addr != NULL ? 0 : (int)GetLastError());
|
||||
}
|
||||
|
||||
|
@ -499,8 +511,7 @@ void _mi_prim_process_info(mi_process_info_t* pinfo)
|
|||
}
|
||||
|
||||
// get process info
|
||||
PROCESS_MEMORY_COUNTERS info;
|
||||
memset(&info, 0, sizeof(info));
|
||||
PROCESS_MEMORY_COUNTERS info; _mi_memzero_var(info);
|
||||
if (pGetProcessMemoryInfo != NULL) {
|
||||
pGetProcessMemoryInfo(GetCurrentProcess(), &info, sizeof(info));
|
||||
}
|
||||
|
@ -602,59 +613,205 @@ bool _mi_prim_random_buf(void* buf, size_t buf_len) {
|
|||
|
||||
#endif // MI_USE_RTLGENRANDOM
|
||||
|
||||
|
||||
|
||||
//----------------------------------------------------------------
|
||||
// Thread init/done
|
||||
// Process & Thread Init/Done
|
||||
//----------------------------------------------------------------
|
||||
|
||||
#if !defined(MI_SHARED_LIB)
|
||||
|
||||
// use thread local storage keys to detect thread ending
|
||||
// note: another design could be to use special linker sections (see issue #869)
|
||||
#include <fibersapi.h>
|
||||
#if (_WIN32_WINNT < 0x600) // before Windows Vista
|
||||
WINBASEAPI DWORD WINAPI FlsAlloc( _In_opt_ PFLS_CALLBACK_FUNCTION lpCallback );
|
||||
WINBASEAPI PVOID WINAPI FlsGetValue( _In_ DWORD dwFlsIndex );
|
||||
WINBASEAPI BOOL WINAPI FlsSetValue( _In_ DWORD dwFlsIndex, _In_opt_ PVOID lpFlsData );
|
||||
WINBASEAPI BOOL WINAPI FlsFree(_In_ DWORD dwFlsIndex);
|
||||
#endif
|
||||
|
||||
static DWORD mi_fls_key = (DWORD)(-1);
|
||||
|
||||
static void NTAPI mi_fls_done(PVOID value) {
|
||||
mi_heap_t* heap = (mi_heap_t*)value;
|
||||
if (heap != NULL) {
|
||||
_mi_thread_done(heap);
|
||||
FlsSetValue(mi_fls_key, NULL); // prevent recursion as _mi_thread_done may set it back to the main heap, issue #672
|
||||
static void NTAPI mi_win_main(PVOID module, DWORD reason, LPVOID reserved) {
|
||||
MI_UNUSED(reserved);
|
||||
MI_UNUSED(module);
|
||||
#if MI_TLS_SLOT >= 2
|
||||
if ((reason==DLL_PROCESS_ATTACH || reason==DLL_THREAD_ATTACH) && mi_prim_get_default_heap() == NULL) {
|
||||
_mi_heap_set_default_direct((mi_heap_t*)&_mi_heap_empty);
|
||||
}
|
||||
#endif
|
||||
if (reason==DLL_PROCESS_ATTACH) {
|
||||
_mi_process_load();
|
||||
}
|
||||
else if (reason==DLL_PROCESS_DETACH) {
|
||||
_mi_process_done();
|
||||
}
|
||||
else if (reason==DLL_THREAD_DETACH && !_mi_is_redirected()) {
|
||||
_mi_thread_done(NULL);
|
||||
}
|
||||
}
|
||||
|
||||
void _mi_prim_thread_init_auto_done(void) {
|
||||
mi_fls_key = FlsAlloc(&mi_fls_done);
|
||||
}
|
||||
|
||||
void _mi_prim_thread_done_auto_done(void) {
|
||||
// call thread-done on all threads (except the main thread) to prevent
|
||||
// dangling callback pointer if statically linked with a DLL; Issue #208
|
||||
FlsFree(mi_fls_key);
|
||||
}
|
||||
#if defined(MI_SHARED_LIB)
|
||||
#define MI_PRIM_HAS_PROCESS_ATTACH 1
|
||||
|
||||
void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {
|
||||
mi_assert_internal(mi_fls_key != (DWORD)(-1));
|
||||
FlsSetValue(mi_fls_key, heap);
|
||||
}
|
||||
// Windows DLL: easy to hook into process_init and thread_done
|
||||
__declspec(dllexport) BOOL WINAPI DllMain(HINSTANCE inst, DWORD reason, LPVOID reserved) {
|
||||
mi_win_main((PVOID)inst,reason,reserved);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
#else
|
||||
// nothing to do since `_mi_thread_done` is handled through the DLL_THREAD_DETACH event.
|
||||
void _mi_prim_thread_init_auto_done(void) { }
|
||||
void _mi_prim_thread_done_auto_done(void) { }
|
||||
void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {
|
||||
MI_UNUSED(heap);
|
||||
}
|
||||
|
||||
// Dll; nothing to do as in that case thread_done is handled through the DLL_THREAD_DETACH event.
|
||||
#elif !defined(MI_WIN_USE_FLS)
|
||||
#define MI_PRIM_HAS_PROCESS_ATTACH 1
|
||||
|
||||
void _mi_prim_thread_init_auto_done(void) {
|
||||
}
|
||||
static void NTAPI mi_win_main_attach(PVOID module, DWORD reason, LPVOID reserved) {
|
||||
if (reason == DLL_PROCESS_ATTACH || reason == DLL_THREAD_ATTACH) {
|
||||
mi_win_main(module, reason, reserved);
|
||||
}
|
||||
}
|
||||
static void NTAPI mi_win_main_detach(PVOID module, DWORD reason, LPVOID reserved) {
|
||||
if (reason == DLL_PROCESS_DETACH || reason == DLL_THREAD_DETACH) {
|
||||
mi_win_main(module, reason, reserved);
|
||||
}
|
||||
}
|
||||
|
||||
void _mi_prim_thread_done_auto_done(void) {
|
||||
}
|
||||
// Set up TLS callbacks in a statically linked library by using special data sections.
|
||||
// See <https://stackoverflow.com/questions/14538159/tls-callback-in-windows>
|
||||
// We use 2 entries to ensure we call attach events before constructors
|
||||
// are called, and detach events after destructors are called.
|
||||
#if defined(__cplusplus)
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {
|
||||
MI_UNUSED(heap);
|
||||
}
|
||||
#if defined(_WIN64)
|
||||
#pragma comment(linker, "/INCLUDE:_tls_used")
|
||||
#pragma comment(linker, "/INCLUDE:_mi_tls_callback_pre")
|
||||
#pragma comment(linker, "/INCLUDE:_mi_tls_callback_post")
|
||||
#pragma const_seg(".CRT$XLB")
|
||||
extern const PIMAGE_TLS_CALLBACK _mi_tls_callback_pre[];
|
||||
const PIMAGE_TLS_CALLBACK _mi_tls_callback_pre[] = { &mi_win_main_attach };
|
||||
#pragma const_seg()
|
||||
#pragma const_seg(".CRT$XLY")
|
||||
extern const PIMAGE_TLS_CALLBACK _mi_tls_callback_post[];
|
||||
const PIMAGE_TLS_CALLBACK _mi_tls_callback_post[] = { &mi_win_main_detach };
|
||||
#pragma const_seg()
|
||||
#else
|
||||
#pragma comment(linker, "/INCLUDE:__tls_used")
|
||||
#pragma comment(linker, "/INCLUDE:__mi_tls_callback_pre")
|
||||
#pragma comment(linker, "/INCLUDE:__mi_tls_callback_post")
|
||||
#pragma data_seg(".CRT$XLB")
|
||||
PIMAGE_TLS_CALLBACK _mi_tls_callback_pre[] = { &mi_win_main_attach };
|
||||
#pragma data_seg()
|
||||
#pragma data_seg(".CRT$XLY")
|
||||
PIMAGE_TLS_CALLBACK _mi_tls_callback_post[] = { &mi_win_main_detach };
|
||||
#pragma data_seg()
|
||||
#endif
|
||||
|
||||
#if defined(__cplusplus)
|
||||
}
|
||||
#endif
|
||||
|
||||
// nothing to do since `_mi_thread_done` is handled through the DLL_THREAD_DETACH event.
|
||||
void _mi_prim_thread_init_auto_done(void) { }
|
||||
void _mi_prim_thread_done_auto_done(void) { }
|
||||
void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {
|
||||
MI_UNUSED(heap);
|
||||
}
|
||||
|
||||
#else // deprecated: statically linked, use fiber api
|
||||
|
||||
#if defined(_MSC_VER) // on clang/gcc use the constructor attribute (in `src/prim/prim.c`)
|
||||
// MSVC: use data section magic for static libraries
|
||||
// See <https://www.codeguru.com/cpp/misc/misc/applicationcontrol/article.php/c6945/Running-Code-Before-and-After-Main.htm>
|
||||
#define MI_PRIM_HAS_PROCESS_ATTACH 1
|
||||
|
||||
static int mi_process_attach(void) {
|
||||
mi_win_main(NULL,DLL_PROCESS_ATTACH,NULL);
|
||||
atexit(&_mi_process_done);
|
||||
return 0;
|
||||
}
|
||||
typedef int(*mi_crt_callback_t)(void);
|
||||
#if defined(_WIN64)
|
||||
#pragma comment(linker, "/INCLUDE:_mi_tls_callback")
|
||||
#pragma section(".CRT$XIU", long, read)
|
||||
#else
|
||||
#pragma comment(linker, "/INCLUDE:__mi_tls_callback")
|
||||
#endif
|
||||
#pragma data_seg(".CRT$XIU")
|
||||
mi_decl_externc mi_crt_callback_t _mi_tls_callback[] = { &mi_process_attach };
|
||||
#pragma data_seg()
|
||||
#endif
|
||||
|
||||
// use the fiber api for calling `_mi_thread_done`.
|
||||
#include <fibersapi.h>
|
||||
#if (_WIN32_WINNT < 0x600) // before Windows Vista
|
||||
WINBASEAPI DWORD WINAPI FlsAlloc( _In_opt_ PFLS_CALLBACK_FUNCTION lpCallback );
|
||||
WINBASEAPI PVOID WINAPI FlsGetValue( _In_ DWORD dwFlsIndex );
|
||||
WINBASEAPI BOOL WINAPI FlsSetValue( _In_ DWORD dwFlsIndex, _In_opt_ PVOID lpFlsData );
|
||||
WINBASEAPI BOOL WINAPI FlsFree(_In_ DWORD dwFlsIndex);
|
||||
#endif
|
||||
|
||||
static DWORD mi_fls_key = (DWORD)(-1);
|
||||
|
||||
static void NTAPI mi_fls_done(PVOID value) {
|
||||
mi_heap_t* heap = (mi_heap_t*)value;
|
||||
if (heap != NULL) {
|
||||
_mi_thread_done(heap);
|
||||
FlsSetValue(mi_fls_key, NULL); // prevent recursion as _mi_thread_done may set it back to the main heap, issue #672
|
||||
}
|
||||
}
|
||||
|
||||
void _mi_prim_thread_init_auto_done(void) {
|
||||
mi_fls_key = FlsAlloc(&mi_fls_done);
|
||||
}
|
||||
|
||||
void _mi_prim_thread_done_auto_done(void) {
|
||||
// call thread-done on all threads (except the main thread) to prevent
|
||||
// dangling callback pointer if statically linked with a DLL; Issue #208
|
||||
FlsFree(mi_fls_key);
|
||||
}
|
||||
|
||||
void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {
|
||||
mi_assert_internal(mi_fls_key != (DWORD)(-1));
|
||||
FlsSetValue(mi_fls_key, heap);
|
||||
}
|
||||
#endif
|
||||
|
||||
// ----------------------------------------------------
|
||||
// Communicate with the redirection module on Windows
|
||||
// ----------------------------------------------------
|
||||
#if defined(MI_SHARED_LIB) && !defined(MI_WIN_NOREDIRECT)
|
||||
#define MI_PRIM_HAS_ALLOCATOR_INIT 1
|
||||
|
||||
static bool mi_redirected = false; // true if malloc redirects to mi_malloc
|
||||
|
||||
bool _mi_is_redirected(void) {
|
||||
return mi_redirected;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
mi_decl_export void _mi_redirect_entry(DWORD reason) {
|
||||
// called on redirection; careful as this may be called before DllMain
|
||||
#if MI_TLS_SLOT >= 2
|
||||
if ((reason==DLL_PROCESS_ATTACH || reason==DLL_THREAD_ATTACH) && mi_prim_get_default_heap() == NULL) {
|
||||
_mi_heap_set_default_direct((mi_heap_t*)&_mi_heap_empty);
|
||||
}
|
||||
#endif
|
||||
if (reason == DLL_PROCESS_ATTACH) {
|
||||
mi_redirected = true;
|
||||
}
|
||||
else if (reason == DLL_PROCESS_DETACH) {
|
||||
mi_redirected = false;
|
||||
}
|
||||
else if (reason == DLL_THREAD_DETACH) {
|
||||
_mi_thread_done(NULL);
|
||||
}
|
||||
}
|
||||
__declspec(dllimport) bool mi_cdecl mi_allocator_init(const char** message);
|
||||
__declspec(dllimport) void mi_cdecl mi_allocator_done(void);
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
bool _mi_allocator_init(const char** message) {
|
||||
return mi_allocator_init(message);
|
||||
}
|
||||
void _mi_allocator_done(void) {
|
||||
mi_allocator_done();
|
||||
}
|
||||
#endif
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue