mirror of
https://git.proxmox.com/git/wasi-libc
synced 2025-06-13 15:56:16 +00:00
cf366c06d1
`lseek(x, 0, SEEK_CUR)` has no effect other than to return the current file offset. The patch here uses a macro with `__builtin_constant_p` to recognize this case and rewrite it to a library call that uses `fd_tell` rather than `fd_seek`, so that programs that don't need actual seeking don't end up importing `fd_seek`. This is also the first usage of `__wasi_fd_tell` in WASI libc, so this adds it to undefined-symbols.txt.
22 lines
431 B
C
22 lines
431 B
C
#ifndef __wasi_libc_h
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#define __wasi_libc_h
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#include <__typedef_off_t.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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void __wasilibc_init_preopen(void);
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int __wasilibc_register_preopened_fd(int fd, const char *path);
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int __wasilibc_fd_renumber(int fd, int newfd);
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int __wasilibc_rmfileat(int fd, const char *path);
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int __wasilibc_rmdirat(int fd, const char *path);
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off_t __wasilibc_tell(int fd);
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#ifdef __cplusplus
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}
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#endif
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#endif
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