rethook_alloc(9)

💖 NAME 💖

Okay bestie, welcome to the Kernel API Manual page for rethook_alloc(9) — this one allocates a struct rethook. That's the whole name vibe. ✨

• rethook_alloc — allocates a struct rethook.

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🎀 SYNOPSIS 🎀

Here's the exact signature, no cap:

struct rethook * rethook_alloc (void *data , rethook_handler_t handler ,
int size , int num );

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🌸 ARGUMENTS 🌸

• data — the data you pass along to the handler when the return is hooked. 🫶
• handler — the return-hook callback function, and it must NOT be NULL. This is not a drill, bestie.
• size — node size: the rethook node and additional data.
• num — the number of rethook nodes to be preallocated.

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🦋 DESCRIPTION 🦋

This function allocates and initializes a new rethook using data and handler. It returns a pointer to the new rethook, or error codes for failures. Literally that's the deal. 💅

Heads up: handler == NULL means this rethook is going to be freed. That's the note. Don't skip it. 💀

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🌈 SEE ALSO 🌈

• Kernel file ./kernel/trace/rethook.c
• rethook_stop(9)
• rethook_free(9)
• rethook_recycle(9)
• rethook_try_get(9)
• rethook_hook(9)
• rethook_find_ret_addr(9)

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Signed, sealed, slayed: source/version ./kernel/trace, dated October 2026 — all about rethook_alloc(9). 💅🎀