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fix compilation with C++, fix overrides in C++ to adhere to the spec (issue #26)

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daan 2019-07-07 18:11:21 -07:00
parent dd59a917ce
commit c3528203b5
10 changed files with 133 additions and 35 deletions
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42
src/alloc-override.c
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@ -30,12 +30,14 @@ terms of the MIT license. A copy of the license can be found in the file
#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_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)
@ -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