mirror of
https://git.musl-libc.org/git/musl
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c9f415d7ea
replacement is subject to conditions on the replacement functions. they may only call functions which are async-signal-safe, as specified either by POSIX or as an implementation-defined extension. if any allocator functions are replaced, at least malloc, realloc, and free must be provided. if calloc is not provided, it will behave as malloc+memset. any of the memalign-family functions not provided will fail with ENOMEM. in order to implement the above properties, calloc and __memalign check that they are using their own malloc or free, respectively. choice to check malloc or free is based on considerations of supporting __simple_malloc. in order to make this work, calloc is split into separate versions for __simple_malloc and full malloc; commit ba819787ee93ceae94efd274f7849e317c1bff58 already did most of the split anyway, and completing it saves an extra call frame. previously, use of -Bsymbolic-functions made dynamic interposition impossible. now, we are using an explicit dynamic-list, so add allocator functions to the list. most are not referenced anyway, but all are added for completeness.
45 lines
403 B
Plaintext
45 lines
403 B
Plaintext
{
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environ;
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__environ;
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stdin;
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stdout;
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stderr;
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malloc;
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calloc;
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realloc;
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free;
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memalign;
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posix_memalign;
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aligned_alloc;
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malloc_usable_size;
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timezone;
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daylight;
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tzname;
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__timezone;
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__daylight;
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__tzname;
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signgam;
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__signgam;
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optarg;
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optind;
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opterr;
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optreset;
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__optreset;
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getdate_err;
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h_errno;
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program_invocation_name;
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program_invocation_short_name;
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__progname;
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__progname_full;
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__stack_chk_guard;
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};
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