DWARF_LNE_SET_ADDRESS(3)

💖 NAME 💖

Okay bestie, this is the DWARF_LNE_SET_ADDRESS(3) page from the Library Functions Manual ✨. dwarf_lne_set_address — it sets the base address for line number information. Like, the main character of line-number setup 👑.

📚 LIBRARY 📚

DWARF Access Library (libdwarf, -ldwarf) — that's the squad you're linking with, no cap 💅.

✨ SYNOPSIS ✨

#include <libdwarf.h>

Dwarf_Unsigned
dwarf_lne_set_address(Dwarf_P_Debug dbg, Dwarf_Addr off,
    Dwarf_Unsigned symndx, Dwarf_Error *err);

🌸 DESCRIPTION 🌸

So dwarf_lne_set_address() sets the base address used by subsequent invocations of the dwarf_add_line_entry(3) function. It's giving setup energy for the line entries that come after it 🎀.

• dbg — should reference a DWARF producer instance allocated using dwarf_producer_init(3) or dwarf_producer_init_b(3). Like, don't just roll up with a random pointer, bestie 🫶.
• off — specifies a relocatable program address 🛠️.
• symndx — specifies the index of the ELF symbol to be used for relocation 🔗.
• err — if this argument is not NULL, it will be used to store error information in case of an error. If it's NULL, then no error info gets stored there, obviously 🙈.

🫶 RETURN VALUES 🫶

On success, function dwarf_lne_set_address() returns DW_DLV_OK — slay ✅. In case of an error, function dwarf_lne_set_address() returns DW_DLV_NOCOUNT and sets the argument err.

💀 ERRORS 💀

Function dwarf_lne_set_address() can fail with:

• [DW_DLE_ARGUMENT] — Argument dbg was NULL. Like bestie, you forgot the producer instance 😭.
• [DW_DLE_ARGUMENT] — The argument symndx had an illegal value. That index is not it 💅.
• [DW_DLE_MEMORY] — An out of memory condition was encountered during the execution of the function. The memory said nope 💀.

👀 SEE ALSO 👀

• dwarf(3)
• dwarf_add_directory_decl(3)
• dwarf_add_file_decl(3)
• dwarf_add_line_entry(3)
• dwarf_lne_end_sequence(3)
• dwarf_producer_init(3)
• dwarf_producer_init_b(3)

This page is from Debian, dated September 14, 2011 — mwah, and that's the whole vibe check, bestie 💖✨