7cc779f15c
This patch adds clang-style FORTIFY to Bionic. For more information on FORTIFY, please see https://goo.gl/8HS2dW . This implementation works for versions of clang that don't support diagnose_if, so please see the "without diagnose_if" sections. We plan to swap to a diagnose_if-based FORTIFY later this year (since it doesn't really add any features; it just simplifies the implementation a lot, and it gives us much prettier diagnostics) Bug: 32073964 Test: Builds on angler, bullhead, marlin, sailfish. Bionic CTS tests pass on Angler and Bullhead. Change-Id: I607aecbeee81529709b1eee7bef5b0836151eb2b
86 lines
2.8 KiB
C
86 lines
2.8 KiB
C
/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef LIBC_INCLUDE_MALLOC_H_
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#define LIBC_INCLUDE_MALLOC_H_
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#include <sys/cdefs.h>
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#include <stddef.h>
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#include <stdio.h>
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__BEGIN_DECLS
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#if defined(__clang__)
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/* clang should support alloc_size in the nearish future. */
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#if __has_attribute(alloc_size)
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#error "We should enable alloc_size for clang."
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#else
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#define __BIONIC_ALLOC_SIZE(...)
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#endif
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#else
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#define __BIONIC_ALLOC_SIZE(...) __attribute__((__alloc_size__(__VA_ARGS__)))
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#endif
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void* malloc(size_t byte_count) __mallocfunc __BIONIC_ALLOC_SIZE(1) __wur;
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void* calloc(size_t item_count, size_t item_size) __mallocfunc __BIONIC_ALLOC_SIZE(1,2) __wur;
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void* realloc(void* p, size_t byte_count) __BIONIC_ALLOC_SIZE(2) __wur;
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void free(void* p);
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void* memalign(size_t alignment, size_t byte_count) __mallocfunc __BIONIC_ALLOC_SIZE(2) __wur;
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size_t malloc_usable_size(const void* p) __INTRODUCED_IN(17);
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#ifndef STRUCT_MALLINFO_DECLARED
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#define STRUCT_MALLINFO_DECLARED 1
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struct mallinfo {
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size_t arena; /* Total number of non-mmapped bytes currently allocated from OS. */
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size_t ordblks; /* Number of free chunks. */
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size_t smblks; /* (Unused.) */
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size_t hblks; /* (Unused.) */
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size_t hblkhd; /* Total number of bytes in mmapped regions. */
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size_t usmblks; /* Maximum total allocated space; greater than total if trimming has occurred. */
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size_t fsmblks; /* (Unused.) */
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size_t uordblks; /* Total allocated space (normal or mmapped.) */
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size_t fordblks; /* Total free space. */
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size_t keepcost; /* Upper bound on number of bytes releasable by malloc_trim. */
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};
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#endif /* STRUCT_MALLINFO_DECLARED */
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struct mallinfo mallinfo(void);
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/*
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* XML structure for malloc_info(3) is in the following format:
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*
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* <malloc version="jemalloc-1">
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* <heap nr="INT">
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* <allocated-large>INT</allocated-large>
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* <allocated-huge>INT</allocated-huge>
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* <allocated-bins>INT</allocated-bins>
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* <bins-total>INT</bins-total>
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* <bin nr="INT">
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* <allocated>INT</allocated>
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* <nmalloc>INT</nmalloc>
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* <ndalloc>INT</ndalloc>
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* </bin>
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* <!-- more bins -->
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* </heap>
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* <!-- more heaps -->
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* </malloc>
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*/
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int malloc_info(int, FILE*) __INTRODUCED_IN(23);
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__END_DECLS
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#endif /* LIBC_INCLUDE_MALLOC_H_ */
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