Man pages › Compared with Linux and the BSDs

`addr2line(1)` on Solnix vs Linux and the BSDs

addr2line is not in the Solnix base system: install pkgs.solnix.binutils. The Solnix page is the same text as the Linux binutils page, so Linux users see no difference. FreeBSD ships llvm-addr2line, an alias for llvm-symbolizer, with different defaults.

The manual pages

Solnix: addr2line(1) from pkgs.solnix.binutils
Linux: addr2line(1) binutils-2.46
FreeBSD: addr2line(1) 15.1-RELEASE

What Solnix runs

Not installed by default: add pkgs.solnix.binutils. The bundle shows no illumos variant of addr2line on PATH and lists no other variants.

Differences

Compared with	Topic	What differs
Linux	same program	The Solnix page and the Linux binutils-2.46 page have the same NAME, SYNOPSIS, options and behaviour text. Both use the GNU binutils addr2line. The part of the Linux page after the @file text was trimmed in the bundle, so it was not compared. Source: Solnix addr2line(1) SYNOPSIS, OPTIONS; Linux addr2line(1) SYNOPSIS, OPTIONS
FreeBSD	implementation	FreeBSD's addr2line page describes llvm-addr2line, an alias for llvm-symbolizer(1) with different defaults. It is meant as a drop-in replacement for GNU addr2line, which is what Solnix installs from binutils. Source: FreeBSD addr2line(1) NAME, DESCRIPTION; Solnix addr2line(1) NAME
FreeBSD	function names (`-f`)	The Solnix binutils page documents `-f` as showing function names. The FreeBSD page says llvm-addr2line does not print function names by default and needs `-f`. The Solnix text does not say whether `-f` is on by default. Source: FreeBSD addr2line(1) DESCRIPTION (-f); Solnix addr2line(1) -f
FreeBSD	demangling (`-C`)	On Solnix, `-C` or `--demangle` is an option that decodes C++ names. On FreeBSD, llvm-addr2line does not demangle by default and `-C` switches it on. The Solnix page documents `-C` as an option and gives no default. Source: FreeBSD addr2line(1) DESCRIPTION (-C); Solnix addr2line(1) -C, --demangle
FreeBSD	inlined frames (`-i`)	On FreeBSD, llvm-addr2line does not print inlined frames unless `-i` is given. Solnix documents `-i` as printing source information for all enclosing scopes of an inlined function. Pass `-i` explicitly in scripts for the same output on both. Source: FreeBSD addr2line(1) DESCRIPTION (-i); Solnix addr2line(1) -i, --inlines
FreeBSD	address parsing	FreeBSD llvm-addr2line reads all addresses as hexadecimal and ignores an optional 0x prefix. The Solnix page says it accepts hexadecimal addresses or symbol+offset. The FreeBSD page does not mention symbol+offset input. Source: FreeBSD addr2line(1) DESCRIPTION (first bullet); Solnix addr2line(1) DESCRIPTION
FreeBSD	environment variable	FreeBSD llvm-addr2line reads default options from LLVM_ADDR2LINE_OPTS. The Solnix page documents no environment variable. It does document @file, which reads options from a file. Source: FreeBSD addr2line(1) DESCRIPTION (last bullet); Solnix addr2line(1) @file
FreeBSD	output style	FreeBSD llvm-addr2line uses `--output-style=GNU` by default, so its output is meant to match GNU addr2line, as on Solnix. The FreeBSD page here lists no option flags beyond that, so check llvm-symbolizer(1) for the rest. Source: FreeBSD addr2line(1) DESCRIPTION (--output-style=GNU), SEE ALSO; Solnix addr2line(1) DESCRIPTION
FreeBSD	option documentation	The FreeBSD page gives only 'llvm-addr2line [options]' and lists no flags. The Solnix page lists `-a`, `-b`, `-C`, `-e`, `-f`, `-s`, `-i`, `-j`, `-p`, `-r`, `-R` and their long forms. Whether FreeBSD accepts `-a`, `-b`, `-j`, `-p`, `-r` or `-R` is not stated. Source: FreeBSD addr2line(1) SYNOPSIS; Solnix addr2line(1) SYNOPSIS, OPTIONS

Standards

POSIX: addr2line is not a POSIX.1-2024 utility.

Writing portable scripts

Pass -f, -C and -i explicitly if you need function names, demangling and inlined frames. FreeBSD's llvm-addr2line has all three off by default.
Give addresses as plain hexadecimal, with -e naming the executable, for the most portable use.

Every difference here is taken from the manual pages linked above: Solnix's published page, Linux (man-pages and the GNU and util-linux manuals), FreeBSD, OpenBSD and NetBSD. Each row names its source. Where a manual is silent, this page is too. Compiled 2026-10-26. Found a mistake? Mail hackers@lists.solnix.io.