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Add dontthrow attribute to most libc functions

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This will help C++ code that uses exceptions to be tinier. For example,
this change shaves away 1000 lines of assembly code from LLVM's libcxx,
which is 0.7% of all assembly instructions in the entire library.
This commit is contained in:
Justine Tunney 2024-01-09 01:26:03 -08:00
parent cb19e172da
commit eeb20775d2
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GPG key ID: BE714B4575D6E328
103 changed files with 1455 additions and 1456 deletions
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24
libc/mem/mem.h
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@ -24,14 +24,14 @@ char *strdup(const char *) paramsnonnull() mallocesque;
char *strndup(const char *, size_t) paramsnonnull() mallocesque;
void *aligned_alloc(size_t, size_t) attributeallocalign((1))
attributeallocsize((2)) returnspointerwithnoaliases libcesque __wur;
int posix_memalign(void **, size_t, size_t);
int posix_memalign(void **, size_t, size_t) libcesque;
int mallopt(int, int);
int malloc_trim(size_t);
size_t bulk_free(void **, size_t);
size_t malloc_usable_size(void *);
void **independent_calloc(size_t, size_t, void **);
void **independent_comalloc(size_t, size_t *, void **);
int mallopt(int, int) libcesque;
int malloc_trim(size_t) libcesque;
size_t bulk_free(void **, size_t) libcesque;
size_t malloc_usable_size(void *) libcesque;
void **independent_calloc(size_t, size_t, void **) libcesque;
void **independent_comalloc(size_t, size_t *, void **) libcesque;
wchar_t *wcsdup(const wchar_t *) strlenesque __wur;
@ -48,12 +48,12 @@ struct mallinfo {
size_t keepcost; /* releasable (via malloc_trim) space */
};
struct mallinfo mallinfo(void);
struct mallinfo mallinfo(void) libcesque;
size_t malloc_footprint(void);
size_t malloc_max_footprint(void);
size_t malloc_footprint_limit(void);
size_t malloc_set_footprint_limit(size_t);
size_t malloc_footprint(void) libcesque;
size_t malloc_max_footprint(void) libcesque;
size_t malloc_footprint_limit(void) libcesque;
size_t malloc_set_footprint_limit(size_t) libcesque;
void malloc_inspect_all(void (*)(void *, void *, size_t, void *), void *);
COSMOPOLITAN_C_END_