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wip: track allocation locations in debug mode

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This commit is contained in:
Daan Leijen 2020-02-11 12:19:22 -08:00
parent 4090561975
commit 21a95c7449
10 changed files with 257 additions and 141 deletions
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57
include/mimalloc.h
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@ -360,6 +360,58 @@ mi_decl_nodiscard mi_decl_export void* mi_new_n(size_t count, size_t size) mi_at
mi_decl_nodiscard mi_decl_export void* mi_new_realloc(void* p, size_t newsize) mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_nodiscard mi_decl_export void* mi_new_reallocn(void* p, size_t newcount, size_t size) mi_attr_malloc mi_attr_alloc_size2(2, 3);
// ---------------------------------------------------------------------------------------------
// Experimental: Debugging API that tracks the source location of an allocation
// ---------------------------------------------------------------------------------------------
typedef struct mi_source_s {
long long src; // packed encoding of the source location
} mi_source_t;
mi_decl_export mi_source_t mi_source_ret(void* return_address);
mi_decl_export mi_source_t mi_source_loc(const char* fname, int lineno);
mi_decl_export void* mi_source_unpack(mi_source_t source, const char** fname, int* lineno);
#ifdef NDEBUG
#define MI_SOURCE_PARAM
#define MI_SOURCE_ARG
#define MI_SOURCE_RET()
#define MI_SOURCE_LOC()
#else
#ifdef _MSC_VER
#include <intrin.h>
#define mi_return_address() _ReturnAddress()
#elif (defined(__GNUC__) && (__GNUC__>=3)) // includes clang and icc
#define mi_return_address() __builtin_return_address(0)
#else
#define mi_return_address() NULL
#endif
#define MI_SOURCE_PARAM , mi_source_t __mi_source
#define MI_SOURCE_ARG , __mi_source
#define MI_SOURCE_RET() , mi_source_ret(mi_return_address())
#define MI_SOURCE_LOC() , mi_source_loc(__FILE__,__LINE__)
#endif
mi_decl_nodiscard mi_decl_export mi_decl_allocator void* mi_source_malloc(size_t size MI_SOURCE_PARAM) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_nodiscard mi_decl_export mi_decl_allocator void* mi_source_calloc(size_t count, size_t size MI_SOURCE_PARAM) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(1, 2);
mi_decl_nodiscard mi_decl_export mi_decl_allocator void* mi_source_realloc(void* p, size_t newsize MI_SOURCE_PARAM) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size(2);
mi_decl_nodiscard mi_decl_export mi_decl_allocator void* mi_source_malloc_aligned(size_t size, size_t alignment MI_SOURCE_PARAM) mi_attr_noexcept;
mi_decl_nodiscard mi_decl_export mi_decl_allocator void* mi_source_reallocn(void* p, size_t count, size_t size MI_SOURCE_PARAM) mi_attr_noexcept mi_attr_malloc mi_attr_alloc_size2(2, 3);
mi_decl_nodiscard mi_decl_export char* mi_source_strdup(const char* s MI_SOURCE_PARAM) mi_attr_noexcept;
mi_decl_nodiscard mi_decl_export char* mi_source_strndup(const char* s, size_t n MI_SOURCE_PARAM) mi_attr_noexcept;
mi_decl_nodiscard mi_decl_export char* mi_source_realpath(const char* fname, char* resolved_name MI_SOURCE_PARAM) mi_attr_noexcept;
mi_decl_nodiscard mi_decl_export void* mi_source_new(size_t size MI_SOURCE_PARAM) mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_nodiscard mi_decl_export void* mi_source_new_aligned(size_t size, size_t alignment MI_SOURCE_PARAM) mi_attr_malloc mi_attr_alloc_size(1) mi_attr_alloc_align(2);
mi_decl_nodiscard mi_decl_export void* mi_source_new_nothrow(size_t size MI_SOURCE_PARAM) mi_attr_malloc mi_attr_alloc_size(1);
mi_decl_nodiscard mi_decl_export void* mi_source_new_aligned_nothrow(size_t size, size_t alignment MI_SOURCE_PARAM) mi_attr_malloc mi_attr_alloc_size(1) mi_attr_alloc_align(2);
// ----------------------------------------------------------------------
// end of extern "C"
// ----------------------------------------------------------------------
#ifdef __cplusplus
}
#endif
@ -420,4 +472,7 @@ template<class T1,class T2> bool operator==(const mi_stl_allocator<T1>& , const
template<class T1,class T2> bool operator!=(const mi_stl_allocator<T1>& , const mi_stl_allocator<T2>& ) mi_attr_noexcept { return false; }
#endif // __cplusplus
#endif
#endif // MIMALLOC_H