| Message ID | 20240929-nolibc-csky-v1-2-bb28031a73b0@weissschuh.net (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | csky: add shutdown and nolibc support | expand |
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h index 7b82bc3cf107439a3f09f98b99d4d540ffb9ba2a..b3b78343647177c9e5ecb7261997b4f5e03fb8f5 100644 --- a/tools/include/nolibc/sys.h +++ b/tools/include/nolibc/sys.h @@ -595,6 +595,14 @@ off_t sys_lseek(int fd, off_t offset, int whence) { #ifdef __NR_lseek return my_syscall3(__NR_lseek, fd, offset, whence); +#elif defined(__NR_llseek) + off_t result; + int ret; + + ret = my_syscall5(__NR_llseek, fd, + sizeof(offset) > 4 ? offset >> 32 : 0, + offset, &result, whence); + return ret ? ret : result; #else return __nolibc_enosys(__func__, fd, offset, whence); #endif
Not all architectures implement the lseek syscall, for example csky for which support will be added. Provide a fallback implementation to the llseek syscall. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> --- tools/include/nolibc/sys.h | 8 ++++++++ 1 file changed, 8 insertions(+)