dwarf_unwinder_init(9)

💖 NAME 💖

okay so this is dwarf_unwinder_init(9) from the Kernel API Manual, and it is literally here to initialise the dwarf unwinder ✨

✨ SYNOPSIS ✨

int dwarf_unwinder_init (void );

🎀 ARGUMENTS 🎀

• void — no arguments, bestie. none. zero. the void is voiding 💅

🦋 DESCRIPTION 🦋

So what it does is build the data structures describing the .dwarf_frame section to make looking up CIE and FDE entries easier 🫶

Because the .eh_frame section is packed as tightly as possible, it is not easy to look up the FDE for a given PC — so we build a list of FDE and CIE entries that makes it easier. periodt. 💅

🌈 SEE ALSO 🌈

Kernel file: ./arch/sh/kernel/dwarf.c — and these iconic cross-references, in order:

• dwarf_frame_alloc_reg(9)
• dwarf_frame_reg(9)
• dwarf_read_addr(9)
• dwarf_read_uleb128(9)
• dwarf_read_leb128(9)
• dwarf_read_encoded_value(9)
• dwarf_entry_len(9)
• dwarf_lookup_cie(9)
• dwarf_lookup_fde(9)
• dwarf_cfa_execute_insns(9)
• dwarf_free_frame(9)
• dwarf_unwind_stack(9)
• dwarf_parse_section(9)
• module_dwarf_cleanup(9)

okay bye bestie, this page is from ./arch/sh/kernel, dated October 2026, and it is literally the dwarf_unwinder_init(9) era 🎀🫶💖