reboot
Partial in Antinomie 0.7.0 · Syscall list
Synopsis
Section titled “Synopsis”long reboot(int magic1, int magic2, unsigned int cmd, void *arg);| Number (x86-64) | 169 |
| ABI | common |
| Kernel entry point | sys_reboot |
This is the raw kernel prototype from the pinned Linux 6.12.94 schema, not the libc wrapper.
Description
Section titled “Description”Restarts, halts or powers off the machine, or enables and disables Ctrl-Alt-Del handling.
Arguments
Section titled “Arguments”| Name | Type | Meaning |
|---|---|---|
magic1 (arg0) |
int |
First magic number; must match. |
magic2 (arg1) |
int |
Second magic number; must match. |
cmd (arg2) |
unsigned int |
Command or operation selector. |
arg (arg3) |
void * |
Command-specific argument. |
Return value
Section titled “Return value”On success: 0, or never returns when the system actually restarts or halts.
In an Antinomie trace the Return column and the ret filter field show the raw kernel return value. On failure that is the negative errno, for example -2 for ENOENT, not the -1 plus errno that the libc wrapper gives. syscall.errno holds the positive errno and syscall.success is false.
Common errors
Section titled “Common errors”| Raw return | Name | Meaning |
|---|---|---|
-22 |
EINVAL |
An argument is invalid. |
-1 |
EPERM |
The operation is not permitted for this process. |
Man page
Section titled “Man page”Captured by Antinomie
Section titled “Captured by Antinomie”Coverage mark: Partial. The restart command string is decoded for LINUX_REBOOT_CMD_RESTART2. An unknown command records a reboot.unknown_selector “no decoder” gap.
Every call is recorded as an Entry record (the six argument words and the pointees copied at entry) and an Exit record (the return value and the pointees copied at exit).
Arguments
Section titled “Arguments”| Argument | When | How | Recorded field key | Condition |
|---|---|---|---|---|
magic1 (arg0) |
Entry | raw scalar word | args.0, args.magic1 |
|
magic2 (arg1) |
Entry | raw scalar word | args.1, args.magic2 |
|
cmd (arg2) |
Entry | raw scalar word | args.2, args.cmd |
|
arg (arg3) |
Entry | the pointer itself, as a raw word | args.3, args.raw[3] |
|
| ↳ pointee | Entry | NUL-terminated string, up to 255 bytes | arg3.restart_command |
cmd is LINUX_REBOOT_CMD_RESTART2 |
Filter fields
Section titled “Filter fields”- Result:
ret,syscall.errno,syscall.success,syscall.duration_ns. - Argument words:
args.magic1(arg0),args.magic2(arg1),args.cmd(arg2),args.arg(arg3);args.0toargs.5by position.
See Syscall Trace filter for the full syntax.
Known gaps
Section titled “Known gaps”- An unknown
cmdrecordsreboot.unknown_selectorwith the “no decoder” status. - See the coverage mark above for the code paths that record a gap.
For what the capture statuses mean, see Capture statuses. For what is never recorded, see Known gaps.