uretprobe
Implemented in Antinomie 0.7.0 · Syscall list
Synopsis
Section titled “Synopsis”long uretprobe(void);| Number (x86-64) | 335 |
| ABI | common |
| Kernel entry point | sys_uretprobe |
This is the raw kernel prototype from the pinned Linux 6.12.94 schema, not the libc wrapper.
Description
Section titled “Description”Entered by the kernel’s user-space return probe trampoline. Programs do not call it.
Arguments
Section titled “Arguments”The call takes no arguments.
Return value
Section titled “Return value”On success: the restored rax of the interrupted code.
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.
Man page
Section titled “Man page”Captured by Antinomie
Section titled “Captured by Antinomie”Coverage mark: Implemented. All arguments are plain values, recorded as the raw argument words at entry. There is no pointee to copy and no known 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).
Family notes
Section titled “Family notes”uretprobehas no pointer argument. Its input is three words on the user stack (context.uretprobe_regs, 24 bytes), recorded at entry.
Other recorded fields
Section titled “Other recorded fields”context.uretprobe_regs. When and how each is recorded: Not documented yet.
Filter fields
Section titled “Filter fields”- Result:
ret,syscall.errno,syscall.success,syscall.duration_ns. - Argument words: none;
args.0toargs.5by position.
See Syscall Trace filter for the full syntax.
For what the capture statuses mean, see Capture statuses. For what is never recorded, see Known gaps.