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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
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
103 changed files with 1455 additions and 1456 deletions
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8
libc/sock/epoll.h
View file

@ -15,10 +15,10 @@ struct thatispacked epoll_event {
epoll_data_t data;
};
int epoll_create(int);
int epoll_create1(int);
int epoll_ctl(int, int, int, struct epoll_event *);
int epoll_wait(int, struct epoll_event *, int, int);
int epoll_create(int) libcesque;
int epoll_create1(int) libcesque;
int epoll_ctl(int, int, int, struct epoll_event *) libcesque;
int epoll_wait(int, struct epoll_event *, int, int) libcesque;
int epoll_pwait(int, struct epoll_event *, int, int, const sigset_t *);
COSMOPOLITAN_C_END_

2
libc/sock/goodsocket.internal.h
View file

@ -3,7 +3,7 @@
#include "libc/calls/struct/timeval.h"
COSMOPOLITAN_C_START_
int GoodSocket(int, int, int, bool, const struct timeval *);
int GoodSocket(int, int, int, bool, const struct timeval *) libcesque;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_GOODSOCKET_H_ */

4
libc/sock/ifaddrs.h
View file

@ -16,8 +16,8 @@ struct ifaddrs {
void *ifa_data;
};
void freeifaddrs(struct ifaddrs *);
int getifaddrs(struct ifaddrs **);
void freeifaddrs(struct ifaddrs *) libcesque;
int getifaddrs(struct ifaddrs **) libcesque;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_IFADDRS_H_ */

4
libc/sock/select.h
View file

@ -19,9 +19,9 @@ typedef struct fd_set {
#define FD_ZERO(SET) bzero((SET)->fds_bits, sizeof((SET)->fds_bits))
#define FD_SIZE(bits) (((bits) + (sizeof(long) * 8) - 1) / sizeof(long))
int select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
int select(int, fd_set *, fd_set *, fd_set *, struct timeval *) libcesque;
int pselect(int, fd_set *, fd_set *, fd_set *, const struct timespec *,
const sigset_t *);
const sigset_t *) libcesque;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_SELECT_H_ */

2
libc/sock/select.internal.h
View file

@ -4,7 +4,7 @@
#include "libc/sock/select.h"
COSMOPOLITAN_C_START_
const char *DescribeFdSet(char[100], ssize_t, int, fd_set *);
const char *DescribeFdSet(char[100], ssize_t, int, fd_set *) libcesque;
#define DescribeFdSet(x, y, z) DescribeFdSet(alloca(100), x, y, z)
COSMOPOLITAN_C_END_

36
libc/sock/sock.h
View file

@ -5,10 +5,10 @@ COSMOPOLITAN_C_START_
#define INET_ADDRSTRLEN 22
#define IFHWADDRLEN 6
uint16_t htons(uint16_t) pureconst;
uint16_t ntohs(uint16_t) pureconst;
uint32_t htonl(uint32_t) pureconst;
uint32_t ntohl(uint32_t) pureconst;
libcesque uint16_t htons(uint16_t) pureconst;
libcesque uint16_t ntohs(uint16_t) pureconst;
libcesque uint32_t htonl(uint32_t) pureconst;
libcesque uint32_t ntohl(uint32_t) pureconst;
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
#define htons(x) __builtin_bswap16(x)
@ -17,21 +17,21 @@ uint32_t ntohl(uint32_t) pureconst;
#define ntohl(x) __builtin_bswap32(x)
#endif
const char *inet_ntop(int, const void *, char *, uint32_t);
int inet_pton(int, const char *, void *);
uint32_t inet_addr(const char *);
uint32_t *GetHostIps(void);
const char *inet_ntop(int, const void *, char *, uint32_t) libcesque;
int inet_pton(int, const char *, void *) libcesque;
uint32_t inet_addr(const char *) libcesque;
libcesque uint32_t *GetHostIps(void) __wur;
int socket(int, int, int);
int listen(int, int);
int shutdown(int, int);
ssize_t send(int, const void *, size_t, int);
ssize_t recv(int, void *, size_t, int);
ssize_t sendfile(int, int, int64_t *, size_t);
int getsockopt(int, int, int, void *, uint32_t *);
int setsockopt(int, int, int, const void *, uint32_t);
int socketpair(int, int, int, int[2]);
int sockatmark(int);
int socket(int, int, int) libcesque;
int listen(int, int) libcesque;
int shutdown(int, int) libcesque;
ssize_t send(int, const void *, size_t, int) libcesque;
ssize_t recv(int, void *, size_t, int) libcesque;
ssize_t sendfile(int, int, int64_t *, size_t) libcesque;
int getsockopt(int, int, int, void *, uint32_t *) libcesque;
int setsockopt(int, int, int, const void *, uint32_t) libcesque;
int socketpair(int, int, int, int[2]) libcesque;
int sockatmark(int) libcesque;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_SOCK_H_ */

10
libc/sock/syslog.h
View file

@ -2,11 +2,11 @@
#define COSMOPOLITAN_LIBC_SOCK_SYSLOG_H_
COSMOPOLITAN_C_START_
int setlogmask(int);
void openlog(const char *, int, int);
void syslog(int, const char *, ...);
void closelog(void);
void vsyslog(int, const char *, va_list);
int setlogmask(int) libcesque;
void openlog(const char *, int, int) libcesque;
void syslog(int, const char *, ...) libcesque;
void closelog(void) libcesque;
void vsyslog(int, const char *, va_list) libcesque;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_SOCK_SYSLOG_H_ */