syscall_get_error(9)

🦋 NAME 🦋

okay so this is the syscall_get_error(9) page, part of the Kernel API Manual, and it's literally here to check the result of a traced system call. main character energy for syscall tracing ✨

✨ SYNOPSIS ✨

long syscall_get_error (struct task_struct *task , struct pt_regs *regs
);

🎀 ARGUMENTS 🎀

• task — the task of interest, and bestie it must be blocked. no exceptions 💅
• regs — the task_pt_regs of task. literally that 🫶

💅 DESCRIPTION 💅

So it returns 0 if the system call succeeded, or -ERRORCODE if it failed. that's the whole vibe check, fr fr 😌

⚠️ It's only valid to call this when task is stopped for tracing on exit from a system call, due to SYSCALL_WORK_SYSCALL_TRACE or SYSCALL_WORK_SYSCALL_AUDIT. like, do not freelance this check at other times, bestie — it's giving strict rules only 🔥

🌈 SEE ALSO 🌈

Kernel file ./include/asm-generic/syscall.h — go read the source, iykyk. also these iconic siblings:

• syscall_get_nr(9)
• syscall_set_nr(9)
• syscall_rollback(9)
• syscall_get_return_value(9)
• syscall_set_return_value(9)
• syscall_get_arguments(9)
• syscall_set_arguments(9)
• syscall_get_arch(9)

this page's source/home is ./include/asm-generic, and the version/date is October 2026. mwah, mwah 💋🎀