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Message-ID: <20220331182628.7ofplkycqrjkoyov@nixos>
Date: Thu, 31 Mar 2022 14:26:28 -0400
From: Amine Chikhaoui <amine@...khaoui.org>
To: musl@...ts.openwall.com
Subject: Question: dladdr alternative for symbol info lookup with full static
linking
Hello,
I posted this question on #musl irc a week or so ago, but I don't think
anyone noticed so trying the mailing list instead:
>> I have a C++ project that I'm trying to statically link using musl.
>> Part of it has some logic for printing stacktraces, it does that by
>> using <unwind.h> from libgcc, but then when it gets to dladdr((void*)
>> ip, &info), where ip is the result of _Unwind_GetIPInfo, that seems to
>> always return an error.
>> It seems that this isn't the correct way to do things when statically
>> linking, is there an easy way to handle this? the main thing it tries
>> to do is get the function/symbol name demangled using
>> abi::__cxa_demangle later and print a stacktrace.
Just looking for any alternatives for doing something similar in order
to print a useful stacktrace when in a statically linked binary context.
Amine
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