b1739f7f0d
libc: Add support for the new clock() system call
2022-10-15 13:21:22 +02:00
3a9dddaa57
Kernel, libc: Remove the rand() system call
...
That's why we now have a VFS and a /dev pseudo-filesystem. To provide that kind of things.
Remember, everything is a file!!
The new way to ask the kernel for random numbers is to read from /dev/random.
2022-10-15 13:04:48 +02:00
225284a6ca
libc: Add support for mprotect()
2022-10-15 12:59:13 +02:00
613f8170b6
Kernel, libc: Implement mprotect() and use proper PROT_* values
2022-10-15 12:57:14 +02:00
a002e75725
libc: Add strstr()
2022-10-15 12:33:36 +02:00
3fde7e46f5
libc: Add strcmp() and strncmp()
2022-10-15 12:30:49 +02:00
3e2a4276e9
libc: Add memcmp() and memmove()
...
Those were there since forever in the kernel, but they haven't been added to libc until now.
2022-10-15 12:23:37 +02:00
94a6336e4d
libc: add memchr(), strnlen(), strdup(), and rename memclr() to bzero()
2022-10-15 12:18:37 +02:00
523e88e5a9
libc: Add sched_yield()
2022-10-15 11:43:13 +02:00
b0e071e964
libc: Make functions with no arguments be defined as type function(void)
...
Instead of type function().
2022-10-15 11:39:13 +02:00
3e2bebf0aa
libc: Alias __lc_unreachable to __builtin_unreachable
2022-10-15 11:20:20 +02:00
1e86acd4c0
libc: Implement fcntl(F_DUPFD) and dup()
2022-10-15 11:16:34 +02:00
c77e752a82
libc: Implement fileno()
2022-10-15 10:28:52 +02:00
d0d6557e99
libc: Add assert()
2022-10-15 10:05:48 +02:00
8398b2e2e4
libc: Change bits/macros.h to use a __lc_ prefix for internal macros
...
That way, we don't pollute user programs with our own 'noreturn' and 'deprecated' macros
2022-10-15 09:52:37 +02:00
d5bc87099f
libc: #define STDOUT_FILENO and STDERR_FILENO
...
Still missing stdin >.<
2022-10-14 21:24:18 +02:00
eb67ab113e
libc: Add ctype.h
2022-10-14 21:12:26 +02:00
0e64c57e10
libc: Change __{stderr, stdout} to {stderr, stdout}
2022-10-14 19:23:14 +02:00
3b83d7ccaf
libc: Implement fsetpos() and fgetpos()
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Not much to do, since these are kind of equivalent to fseek() and ftell().
2022-10-14 19:12:40 +02:00
743aedcd49
libc: Implement atexit() and _exit()
...
exit() now calls registered handlers before calling _exit().
And initialize_libc() can now register a handler to close stdout and stderr on program termination!! :)
2022-10-12 20:41:55 +02:00
de6041fede
libc: Add fdopen()
2022-10-12 20:19:13 +02:00
5f8376409d
Kernel, libc: Implement EFAULT
2022-10-12 19:25:35 +02:00
4091799701
Kernel, libc: Add ENOEXEC (Exec format error)
2022-10-12 19:15:44 +02:00
531afc3d6f
libc: Add support for the new exec() system call
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execv() is a temporary wrapper that ignores the second parameter, while execve() and execvp() still error out.
2022-10-12 17:45:58 +02:00
edda41a7bb
libc: Implement fseek(), ftell() and rewind()
...
All three use the new syscall seek() (with its lseek() wrapper in unistd.h)!!
2022-10-12 15:56:03 +02:00
4a5db1dca7
libc: Add lseek()
2022-10-12 15:37:29 +02:00
928ade123c
libc: Add support for the new seek() system call
2022-10-12 15:32:09 +02:00
e40304f2f1
libc: Add off_t to sys/types.h
2022-10-12 15:30:41 +02:00
e90b90c556
Kernel, libc: Round up to nearest page-aligned size instead of down
2022-10-12 12:15:12 +02:00
d89685bb36
libc: Document sys/types.h
2022-10-12 12:07:42 +02:00
1e16a78106
libc: Document functions in sys/mman.h
2022-10-12 12:06:45 +02:00
0d3e7d4463
libc: Document errno.h
2022-10-12 12:01:07 +02:00
b42c866db8
Correct description for fopen()
2022-10-12 11:58:07 +02:00
9f5b3b76d2
libc: Document the function in fcntl.h
2022-10-12 11:57:49 +02:00
f44411aa46
libc: Document the functions in luna.h
2022-10-12 11:54:29 +02:00
6aabe19fb4
libc: Document the functions in stdio.h
2022-10-12 11:51:32 +02:00
ffc223c2cf
libc: Document functions in stdlib.h
...
Also, add prototypes for calloc() and realloc(), which were already implemented but not in the header.
2022-10-12 11:30:21 +02:00
19ee20b6f5
libc: Document the functions in string.h
2022-10-12 11:19:14 +02:00
38e87d8f8f
libc: Document the functions in unistd.h
2022-10-12 11:02:18 +02:00
44834b8a0f
libc: Implement fputs, fputc, putc and putchar
2022-10-12 10:05:14 +02:00
d3ac590e24
Kernel: Remove the sys_getversion() syscall
...
User programs can now acquire this information by reading /dev/version.
2022-10-11 21:31:28 +02:00
80ab982fe4
libc: make stdout and stderr functional
...
what were before one extern FILE* without reference now are opened by libc on program initialization, to point to /dev/console by default.
2022-10-11 21:08:46 +02:00
53a4b3b85e
libc: Add new flags to open()
...
Since we now have write support, we can add O_WRONLY and O_RDWR to fcntl.h :)
2022-10-11 21:07:21 +02:00
12cf37d0a7
Kernel/syscalls: Modify sys_write to accept a file descriptor and write to it
...
Previously, sys_write only wrote to the tty. Now, it uses the VFS interface, as it should.
2022-10-11 21:06:12 +02:00
1278cec065
VFS: Add a 'type' flag to Nodes, implement EISDIR
2022-10-11 17:48:11 +02:00
6c51477197
libc: Implement ferror() and feof()
2022-10-11 16:57:08 +02:00
93f6be9319
libc: Implement the start of a FILE* API (the standard, portable C way of doing file stuff)
2022-10-10 21:08:57 +02:00
9e0bd39964
libc: Implement wrappers for sys_{open,read,write}
...
read() and close() are in unistd.h, but open() in fnctl.h.
I thought only the definitions for O_SOMETHING were in fnctl.h, but it is as it is.
Don't know why, but let's not anger the Unix gods.
The FILE* C API is pending as well.
2022-10-10 20:45:26 +02:00
da2ede3450
Kernel, libc, userspace: Implement file descriptors
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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 20:21:39 +02:00
abcf1b6118
Define PAGE_SIZE as 4096 and use it everywhere instead of using 4096 as a magic number
2022-10-08 14:52:28 +02:00
