xbc_get_info(9)

✨ xbc_get_info 💅 (section 9 of the Kernel API Manual, bestie)

okay so you found your way into the kernel API manual, welcome, this page is literally about peeking at your loaded boot config's stats 🎀

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🌸 NAME 🌸

xbc_get_info — get the information of loaded boot config ✨

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🦋 SYNOPSIS 🦋

int xbc_get_info (int *node_size , size_t *data_size );

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💖 ARGUMENTS 💖

• node_size — a pointer where the number of nodes gets stored, bestie. that's it, that's the whole job 🫶
• data_size — a pointer where the size of bootconfig data gets stored. iconic, no notes 💅

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🌈 DESCRIPTION 🌈

okay so here's the tea ☕ — this bad boy grabs the number of used nodes and drops it into node_size, but only if node_size is not NULL. same deal for data_size: it gets the size of bootconfig data, but only if data_size is not NULL. very "if you don't ask, you don't get" energy, honestly 🙈

and the return? it returns 0 if the boot config is initialized (slay, we're so back 🔥), or it returns -ENODEV (not the vibe, girl 😭).

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👑 SEE ALSO 👑

• Kernel file ./lib/bootconfig.c — the source, the mothership, the main character 💜
• xbc_prepend_embedded_cmdline(9)
• xbc_embedded_cmdline_applied(9)
• bootconfig_cmdline_requested(9)
• xbc_root_node(9)
• xbc_node_index(9)
• xbc_node_get_parent(9)
• xbc_node_get_child(9)
• xbc_node_get_next(9)
• xbc_node_get_data(9)
• xbc_node_find_subkey(9)
• xbc_node_find_value(9)
• xbc_node_compose_key_after(9)
• xbc_node_find_next_leaf(9)
• xbc_node_find_next_key_value(9)
• xbc_snprint_cmdline(9)
• _xbc_exit(9)
• xbc_init(9)

like, the whole friend group fr fr 🫶 go read them all, iykyk 🌟

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💀 reminder bestie: both args are optional-by-NULL, but if you pass NULL you get nothing back for that one. no cap.

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⭐ this page came from the ./lib corner of the source tree, dated October 2026 — and that's the whole manual page, periodt 💅🎀✨