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Create standard devices for command line runs (#2724)

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This commit is contained in:
Ben Siraphob
2026-05-03 08:52:40 -07:00
committed by GitHub
parent f216f6ae3b
commit af9315a523
4 changed files with 30 additions and 21 deletions
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app/AppDelegate.m
+1 -21
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@@ -89,27 +89,7 @@ static NSString *const kSkipStartupMessage = @"Skip Startup Message";
FsInitialize();
// create some device nodes
// this will do nothing if they already exist
generic_mknodat(AT_PWD, "/dev/tty1", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 1));
generic_mknodat(AT_PWD, "/dev/tty2", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 2));
generic_mknodat(AT_PWD, "/dev/tty3", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 3));
generic_mknodat(AT_PWD, "/dev/tty4", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 4));
generic_mknodat(AT_PWD, "/dev/tty5", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 5));
generic_mknodat(AT_PWD, "/dev/tty6", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 6));
generic_mknodat(AT_PWD, "/dev/tty7", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 7));
generic_mknodat(AT_PWD, "/dev/tty", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_TTY_MINOR));
generic_mknodat(AT_PWD, "/dev/console", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_CONSOLE_MINOR));
generic_mknodat(AT_PWD, "/dev/ptmx", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_PTMX_MINOR));
generic_mknodat(AT_PWD, "/dev/null", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_NULL_MINOR));
generic_mknodat(AT_PWD, "/dev/zero", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_ZERO_MINOR));
generic_mknodat(AT_PWD, "/dev/full", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_FULL_MINOR));
generic_mknodat(AT_PWD, "/dev/random", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_RANDOM_MINOR));
generic_mknodat(AT_PWD, "/dev/urandom", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_URANDOM_MINOR));
generic_mkdirat(AT_PWD, "/dev/pts", 0755);
create_some_device_nodes();
// Permissions on / have been broken for a while, let's fix them
generic_setattrat(AT_PWD, "/", (struct attr) {.type = attr_mode, .mode = 0755}, false);
kernel/init.c
+26
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@@ -3,9 +3,11 @@
#include <sys/stat.h>
#include "fs/devices.h"
#include "fs/fd.h"
#include "fs/path.h"
#include "fs/real.h"
#include "fs/tty.h"
#include "kernel/calls.h"
#include "kernel/fs.h"
#include "kernel/init.h"
#include "kernel/personality.h"
@@ -125,6 +127,30 @@ void set_console_device(int major, int minor) {
console_minor = minor;
}
void create_some_device_nodes(void) {
// create some device nodes
// this will do nothing if they already exist
generic_mknodat(AT_PWD, "/dev/tty1", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 1));
generic_mknodat(AT_PWD, "/dev/tty2", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 2));
generic_mknodat(AT_PWD, "/dev/tty3", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 3));
generic_mknodat(AT_PWD, "/dev/tty4", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 4));
generic_mknodat(AT_PWD, "/dev/tty5", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 5));
generic_mknodat(AT_PWD, "/dev/tty6", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 6));
generic_mknodat(AT_PWD, "/dev/tty7", S_IFCHR|0666, dev_make(TTY_CONSOLE_MAJOR, 7));
generic_mknodat(AT_PWD, "/dev/tty", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_TTY_MINOR));
generic_mknodat(AT_PWD, "/dev/console", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_CONSOLE_MINOR));
generic_mknodat(AT_PWD, "/dev/ptmx", S_IFCHR|0666, dev_make(TTY_ALTERNATE_MAJOR, DEV_PTMX_MINOR));
generic_mknodat(AT_PWD, "/dev/null", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_NULL_MINOR));
generic_mknodat(AT_PWD, "/dev/zero", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_ZERO_MINOR));
generic_mknodat(AT_PWD, "/dev/full", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_FULL_MINOR));
generic_mknodat(AT_PWD, "/dev/random", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_RANDOM_MINOR));
generic_mknodat(AT_PWD, "/dev/urandom", S_IFCHR|0666, dev_make(MEM_MAJOR, DEV_URANDOM_MINOR));
generic_mkdirat(AT_PWD, "/dev/pts", 0755);
}
int create_stdio(const char *file, int major, int minor) {
struct fd *fd = generic_open(file, O_RDWR_, 0);
if (IS_ERR(fd)) {
kernel/init.h
+1
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@@ -8,6 +8,7 @@ int mount_root(const struct fs_ops *fs, const char *source);
void set_console_device(int major, int minor);
int become_first_process(void);
int become_new_init_child(void);
void create_some_device_nodes(void);
int create_stdio(const char *file, int major, int minor);
int create_piped_stdio(void);
main.c
+2
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@@ -1,6 +1,7 @@
#include <stdlib.h>
#include <string.h>
#include "kernel/calls.h"
#include "kernel/init.h"
#include "kernel/task.h"
#include "xX_main_Xx.h"
@@ -13,6 +14,7 @@ int main(int argc, char *const argv[]) {
fprintf(stderr, "xX_main_Xx: %s\n", strerror(-err));
return err;
}
create_some_device_nodes();
do_mount(&procfs, "proc", "/proc", "", 0);
do_mount(&devptsfs, "devpts", "/dev/pts", "", 0);
task_run_current();