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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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47
libc/calls/struct/timespec.h
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@ -8,35 +8,38 @@ struct timespec {
int64_t tv_nsec; /* nanoseconds */
};
int clock_getres(int, struct timespec *);
int clock_gettime(int, struct timespec *);
int clock_settime(int, const struct timespec *);
int clock_getres(int, struct timespec *) libcesque;
int clock_gettime(int, struct timespec *) libcesque;
int clock_settime(int, const struct timespec *) libcesque;
int clock_nanosleep(int, int, const struct timespec *, struct timespec *);
int futimens(int, const struct timespec[2]);
int nanosleep(const struct timespec *, struct timespec *);
int utimensat(int, const char *, const struct timespec[2], int);
int timespec_getres(struct timespec *, int);
int timespec_get(struct timespec *, int);
int futimens(int, const struct timespec[2]) libcesque;
int nanosleep(const struct timespec *, struct timespec *) libcesque;
int utimensat(int, const char *, const struct timespec[2], int) libcesque;
int timespec_getres(struct timespec *, int) libcesque;
int timespec_get(struct timespec *, int) libcesque;
#ifdef _COSMO_SOURCE
/* cosmopolitan libc's non-posix timespec library
removed by default due to emacs codebase clash */
#define timespec_zero ((struct timespec){0})
#define timespec_max ((struct timespec){0x7fffffffffffffff, 999999999})
int timespec_cmp(struct timespec, struct timespec) pureconst;
int64_t timespec_tomicros(struct timespec) pureconst;
int64_t timespec_tomillis(struct timespec) pureconst;
int64_t timespec_tonanos(struct timespec) pureconst;
struct timespec timespec_add(struct timespec, struct timespec) pureconst;
struct timespec timespec_fromnanos(int64_t) pureconst;
struct timespec timespec_frommicros(int64_t) pureconst;
struct timespec timespec_frommillis(int64_t) pureconst;
struct timespec timespec_real(void);
struct timespec timespec_mono(void);
struct timespec timespec_sleep(struct timespec);
int timespec_sleep_until(struct timespec);
struct timespec timespec_sub(struct timespec, struct timespec) pureconst;
struct timespec timespec_subz(struct timespec, struct timespec) pureconst;
libcesque int timespec_cmp(struct timespec, struct timespec) pureconst;
libcesque int64_t timespec_tomicros(struct timespec) pureconst;
libcesque int64_t timespec_tomillis(struct timespec) pureconst;
libcesque int64_t timespec_tonanos(struct timespec) pureconst;
libcesque struct timespec timespec_add(struct timespec,
struct timespec) pureconst;
libcesque struct timespec timespec_fromnanos(int64_t) pureconst;
libcesque struct timespec timespec_frommicros(int64_t) pureconst;
libcesque struct timespec timespec_frommillis(int64_t) pureconst;
libcesque struct timespec timespec_real(void) libcesque;
libcesque struct timespec timespec_mono(void) libcesque;
libcesque struct timespec timespec_sleep(struct timespec) libcesque;
libcesque int timespec_sleep_until(struct timespec) libcesque;
libcesque struct timespec timespec_sub(struct timespec,
struct timespec) pureconst;
libcesque struct timespec timespec_subz(struct timespec,
struct timespec) pureconst;
int sys_futex(int *, int, int, const struct timespec *, int *);
static inline struct timespec timespec_fromseconds(int64_t __x) {
return (struct timespec){__x};