DWARF_EXPR_CURRENT_OFFSET(3)

✨ NAME ✨

okay so bestie, welcome to DWARF_EXPR_CURRENT_OFFSET(3) from the Library Functions Manual — yes, the title is a whole mouthful, but stay with me. This page is about dwarf_expr_current_offset — retrieve the number of bytes in a location expression stream. It’s giving byte-count realness, no cap. 💅

🫶 LIBRARY 🫶

DWARF Access Library (libdwarf, -ldwarf) — that’s where she lives, okay?

🌸 SYNOPSIS 🌸

#include <libdwarf.h>

Dwarf_Unsigned
dwarf_expr_current_offset(Dwarf_P_Expr expr, Dwarf_Error *err);

💖 DESCRIPTION 💖

Function dwarf_expr_current_offset() returns the size in bytes of the stream representation of a location expression. Literally just the byte count, bestie — she’s not doing extra. periodt.

Argument expr should reference a location expression descriptor allocated using dwarf_new_expr(3). So like, make sure it’s a valid descriptor, okay? 🫶

If argument err is not NULL, it will be used to store error information in case of an error. Very “if you have a spot for the drama, she’ll put the drama there” energy. 😭

🦋 RETURN VALUES 🦋

On success, function dwarf_expr_current_offset() returns the size in bytes of the location descriptor’s stream representation. In case of an error, function dwarf_expr_current_offset() returns DW_DLV_NOCOUNT and sets the argument err. That’s the whole vibe check. ✨

🎀 ERRORS 🎀

Function dwarf_expr_current_offset() can fail with:

• [DW_DLE_ARGUMENT] — Argument expr was NULL.

bestie. if expr is NULL, she will absolutely clock it and return that error. no cap. 💀

🌈 SEE ALSO 🌈

• dwarf(3)
• dwarf_add_expr_addr(3)
• dwarf_add_expr_addr_b(3)
• dwarf_add_expr_gen(3)
• dwarf_expr_into_block(3)
• dwarf_new_expr(3)

mwah 💋 this iconic little page comes from Debian, dated September 13, 2011 — DWARF_EXPR_CURRENT_OFFSET(3) forever, bestie. 🫶✨🎀