Luna/kernel/include/std/errno.h

#pragma once

#define EPERM 1
#define ENOENT 2
#define ESRCH 3
#define EINTR 4
#define E2BIG 7
#define ENOEXEC 8
#define EBADF 9
#define EAGAIN 11
#define ENOMEM 12
#define EFAULT 14
#define EEXIST 17
#define ENOTDIR 20
#define EISDIR 21
#define EINVAL 22
#define EMFILE 24
#define ENOTTY 25
#define ENOSPC 28
#define ERANGE 36
#define ENOSYS 38
#define ENOTSUP 95
Kernel, libc and userspace: Add basic errno support. Kernel: Add an errno.h header with definitions for each header, and return those, negated, from syscalls when there is an error. mmap() returns an invalid address with errno encoded, instead of returning a negated errno; this address is encoded as ffffffffffffffEE where EE is errno in hex. libc: make syscall() return -1 and set errno on error, instead of returning the raw return value of the system call. Also, add mmap() and munmap() wrappers in sys/mman.h :). userspace: make the memeater program show the value of errno when allocating memory fails. Things to improve: add perror() and strerror() to make the errno experience even better! >.< 2022-10-08 10:06:09 +00:00			`#pragma once`

			`#define EPERM 1`
Kernel, libc, userspace: Implement file descriptors Kernel: Implement a descriptor struct which stores the opened node and read offset, and give each task 8 of those. Implement three syscalls: sys_read, sys_open and sys_close (sys_write still writes to the console instead of using a fd, for now) Implement three new errors: ENOENT, EBADF and EMFILE. libc: Implement the new errors, and the new syscalls in syscall(). Also fix _RETURN_WITH_ERRNO() to set errno correctly, which was making strerror() return null, thus crashing perror(). userspace: make init demonstrate the new file API. 2022-10-10 18:21:39 +00:00			`#define ENOENT 2`
Kernel, libc: Implement waitpid() FIXME: exec() is now doing weird page table stuff. But at least it works, no panics :) 2022-10-18 19:30:52 +00:00			`#define ESRCH 3`
libc: Add a few errors to errno.h As well as ino_t, which I forgot in the fstat() commit :) 2022-10-21 16:34:01 +00:00			`#define EINTR 4`
Kernel, libc, userspace: Implement command-line arguments (argv) The only thing missing now is for sh to pass them on. 2022-10-26 16:57:06 +00:00			`#define E2BIG 7`
Kernel, libc: Add ENOEXEC (Exec format error) 2022-10-12 17:15:44 +00:00			`#define ENOEXEC 8`
Kernel, libc, userspace: Implement file descriptors Kernel: Implement a descriptor struct which stores the opened node and read offset, and give each task 8 of those. Implement three syscalls: sys_read, sys_open and sys_close (sys_write still writes to the console instead of using a fd, for now) Implement three new errors: ENOENT, EBADF and EMFILE. libc: Implement the new errors, and the new syscalls in syscall(). Also fix _RETURN_WITH_ERRNO() to set errno correctly, which was making strerror() return null, thus crashing perror(). userspace: make init demonstrate the new file API. 2022-10-10 18:21:39 +00:00			`#define EBADF 9`
Kernel, libc: Implement O_NONBLOCK 2022-10-21 19:51:03 +00:00			`#define EAGAIN 11`
Kernel, libc and userspace: Add basic errno support. Kernel: Add an errno.h header with definitions for each header, and return those, negated, from syscalls when there is an error. mmap() returns an invalid address with errno encoded, instead of returning a negated errno; this address is encoded as ffffffffffffffEE where EE is errno in hex. libc: make syscall() return -1 and set errno on error, instead of returning the raw return value of the system call. Also, add mmap() and munmap() wrappers in sys/mman.h :). userspace: make the memeater program show the value of errno when allocating memory fails. Things to improve: add perror() and strerror() to make the errno experience even better! >.< 2022-10-08 10:06:09 +00:00			`#define ENOMEM 12`
Kernel, libc: Implement EFAULT 2022-10-12 17:25:35 +00:00			`#define EFAULT 14`
Kernel: Make mkdir() accessible to userspace 2022-10-16 15:22:12 +00:00			`#define EEXIST 17`
			`#define ENOTDIR 20`
VFS: Add a 'type' flag to Nodes, implement EISDIR 2022-10-11 15:48:11 +00:00			`#define EISDIR 21`
Kernel, libc: Add ENOSYS This error is returned by the kernel/C Library when an attempt is made to use a system call that doesn't exist. 2022-10-08 12:18:25 +00:00			`#define EINVAL 22`
Kernel, libc, userspace: Implement file descriptors Kernel: Implement a descriptor struct which stores the opened node and read offset, and give each task 8 of those. Implement three syscalls: sys_read, sys_open and sys_close (sys_write still writes to the console instead of using a fd, for now) Implement three new errors: ENOENT, EBADF and EMFILE. libc: Implement the new errors, and the new syscalls in syscall(). Also fix _RETURN_WITH_ERRNO() to set errno correctly, which was making strerror() return null, thus crashing perror(). userspace: make init demonstrate the new file API. 2022-10-10 18:21:39 +00:00			`#define EMFILE 24`
libc: Add a few errors to errno.h As well as ino_t, which I forgot in the fstat() commit :) 2022-10-21 16:34:01 +00:00			`#define ENOTTY 25`
Kernel: Make mkdir() accessible to userspace 2022-10-16 15:22:12 +00:00			`#define ENOSPC 28`
libc: Add dummy getcwd() 2022-10-24 15:05:28 +00:00			`#define ERANGE 36`
Kernel: Make mkdir() accessible to userspace 2022-10-16 15:22:12 +00:00			`#define ENOSYS 38`
			`#define ENOTSUP 95`