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Split newlib syscall support to its own file (#141)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,155 @@ | ||
| /* | ||
| * NEWLIB syscall implementations | ||
| * | ||
| * Copyright (c) 2021 Earle F. Philhower, III <earlephilhower@yahoo.com> | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
| */ | ||
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| #include <Arduino.h> | ||
| #include <stdint.h> | ||
| #include <errno.h> | ||
| #include <_syslist.h> | ||
| #include <sys/times.h> | ||
| #include <pico/stdlib.h> | ||
| #include <pico/multicore.h> | ||
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| #undef errno | ||
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| // TODO - check the fd, create a VFS, etc. | ||
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| extern "C" int errno; | ||
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| extern "C" ssize_t _write(int fd, const void *buf, size_t count) { | ||
| #if defined DEBUG_RP2040_PORT | ||
| return DEBUG_RP2040_PORT.write((const char *)buf, count); | ||
| #else | ||
| return 0; | ||
| #endif | ||
| } | ||
|
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| extern "C" int _chown (const char *path, uid_t owner, gid_t group) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _close (int fildes) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _execve (char *name, char **argv, char **env) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _fork (void) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _fstat (int fildes, struct stat *st) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _getpid (void) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| static int64_t __timedelta_us = 0.0; | ||
|
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| extern "C" int _gettimeofday (struct timeval *tv, void *tz) { | ||
| uint64_t now_us = to_us_since_boot(get_absolute_time()) + __timedelta_us; | ||
| if (tv) { | ||
| tv->tv_sec = now_us / 1000000L; | ||
| tv->tv_usec = now_us % 1000000L; | ||
| } | ||
| return 0; | ||
| } | ||
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| extern "C" int settimeofday (const struct timeval *tv, const struct timezone *tz) { | ||
| uint64_t now_us = to_us_since_boot(get_absolute_time()); | ||
| if (tv) { | ||
| uint64_t newnow_us; | ||
| newnow_us = tv->tv_sec * 1000000L; | ||
| newnow_us += tv->tv_usec; | ||
| __timedelta_us = newnow_us - now_us; | ||
| } | ||
| return 0; | ||
| } | ||
|
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| extern "C" int _isatty (int file) { | ||
| errno = ENOSYS; | ||
| return 0; | ||
| } | ||
|
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| extern "C" int _kill (int pid, int sig) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _link (char *existing, char *newlink) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _lseek (int file, int ptr, int dir) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _open (char *file, int flags, int mode) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _read (int file, char *ptr, int len) | ||
| { | ||
| // return Serial.read(ptr, len); | ||
| return -1; | ||
| } | ||
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| extern "C" int _readlink (const char *path, char *buf, size_t bufsize) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
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| extern "C" int _stat (const char *file, struct stat *st) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
|
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| extern "C" int _symlink (const char *path1, const char *path2) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
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| extern "C" clock_t _times (struct tms *buf) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
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| extern "C" int _unlink (char *name) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } | ||
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| extern "C" int _wait (int *status) { | ||
| errno = ENOSYS; | ||
| return -1; | ||
| } |