Re: toolchain/56771: profiled programs crash in __mcount

[Martin Husemann <martin%duskware.de@localhost>]

The following reply was made to PR toolchain/56771; it has been noted by GNATS.

From: Martin Husemann <martin%duskware.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: toolchain/56771: profiled programs crash in __mcount
Date: Mon, 28 Mar 2022 14:37:51 +0200

 Rumours say that we need -pg to go with -static, but that does not fix
 the crash here - but gives a more interesting backtrace:
 
  > c++ -pg -static -g -o call_once test.cc -pthread
  > ./call_once
  > gdb call_once call_once.core 
 Core was generated by `call_once'.
 Program terminated with signal SIGBUS, Bus error.
 #0  __mcount (frompc=<optimized out>, selfpc=1252584)
     at /usr/src/lib/libc/../../common/lib/libc/gmon/mcount.c:204
 204                     top->selfpc = selfpc;
 (gdb) bt
 #0  __mcount (frompc=<optimized out>, selfpc=1252584)
     at /usr/src/lib/libc/../../common/lib/libc/gmon/mcount.c:204
 #1  0x0000000000131ce8 in atexit ()
 #2  0x000000000010064c in ___start ()
 
 
 Martin