forked from forks/qmk_firmware
5c2052fd47
* [Core] Fix RISC-V toolchain installation The risc-v toolchain is only available on distributions based on Debian 11+ so we check for their availability before installing them. * [Core] Fix heap symbols and syscalls for picolibc picolibc internally uses __heap_start and __heap_end instead of the defacto chibios linker script standard __heap_base__ and __heap_end__ therefore we introduce these symbols as an alias. Usually all memory used within QMK is statically allocated, but some algorithms make usage of malloc and friends. Also the timeval struct is not defined by picolibc for syscalls, therefore it is declared as stub.
112 lines
2.9 KiB
C
112 lines
2.9 KiB
C
/* Copyright 2021 Nick Brassel, QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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/* To compile the ChibiOS syscall stubs with picolibc
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* the _reent struct has to be defined. */
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#if defined(USE_PICOLIBC)
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struct _reent;
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struct timeval;
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#endif
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#pragma GCC diagnostic ignored "-Wmissing-prototypes"
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__attribute__((weak, used)) int _open_r(struct _reent *r, const char *path, int flag, int m) {
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__errno_r(r) = ENOENT;
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return -1;
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}
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__attribute__((weak, used)) int _lseek_r(struct _reent *r, int file, int ptr, int dir) {
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__errno_r(r) = EBADF;
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return -1;
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}
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__attribute__((weak, used)) int _read_r(struct _reent *r, int file, char *ptr, int len) {
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__errno_r(r) = EBADF;
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return -1;
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}
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__attribute__((weak, used)) int _write_r(struct _reent *r, int file, char *ptr, int len) {
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__errno_r(r) = EBADF;
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return -1;
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}
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__attribute__((weak, used)) int _close_r(struct _reent *r, int file) {
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__errno_r(r) = EBADF;
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return -1;
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}
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__attribute__((weak, used)) int _link_r(struct _reent *r, const char *oldpath, const char *newpath) {
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__errno_r(r) = EPERM;
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return -1;
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}
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__attribute__((weak, used)) int _unlink_r(struct _reent *r, const char *path) {
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__errno_r(r) = EPERM;
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return -1;
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}
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__attribute__((weak, used)) clock_t _times_r(struct _reent *r, void *t) {
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__errno_r(r) = EFAULT;
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return -1;
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}
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__attribute__((weak, used)) int _fstat_r(struct _reent *r, int file, struct stat *st) {
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__errno_r(r) = EBADF;
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return -1;
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}
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__attribute__((weak, used)) int _isatty_r(struct _reent *r, int fd) {
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__errno_r(r) = EBADF;
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return 0;
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}
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__attribute__((weak, used)) caddr_t _sbrk_r(struct _reent *r, int incr) {
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__errno_r(r) = ENOMEM;
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return (caddr_t)-1;
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}
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__attribute__((weak, used)) int _kill(int pid, int sig) {
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errno = EPERM;
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return -1;
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}
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__attribute__((weak, used)) pid_t _getpid(void) { return 1; }
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__attribute__((weak, used)) void _fini(void) { return; }
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__attribute__((weak, used, noreturn)) void _exit(int i) {
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while (1)
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;
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}
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__attribute__((weak, used)) int _gettimeofday_r(struct _reent *r, struct timeval *t, void *tzp) {
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__errno_r(r) = EPERM;
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return -1;
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}
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__attribute__((weak, used)) void *__dso_handle;
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__attribute__((weak, used)) void __cxa_pure_virtual(void) {
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while (1)
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;
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}
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#pragma GCC diagnostic pop
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