Re: gdb problem with DYLD_INSERT_LIBRARIES and pthread in dylib constructor
Re: gdb problem with DYLD_INSERT_LIBRARIES and pthread in dylib constructor
- Subject: Re: gdb problem with DYLD_INSERT_LIBRARIES and pthread in dylib constructor
- From: Jeff Johnson <email@hidden>
- Date: Wed, 15 Jul 2009 14:40:04 -0500
On Jul 15, 2009, at 2:17 PM, Greg Parker wrote:
On Jul 15, 2009, at 12:07 PM, Jeff Johnson wrote:
Hi. I'm experiencing a strange problem with gdb. I'm testing a
version of a dylib that has a long-running pthread created in the
constructor. This can be simulated with the example code at the
end. If I use DYLD_INSERT_LIBRARIES to load the dylib on the
command line, it works fine:
$ DYLD_INSERT_LIBRARIES=/path/to/my.dylib /path/to/the/executable
However, I'm unable to run it in gdb:
$ gdb /path/to/the/executable
(gdb) set environment DYLD_INSERT_LIBRARIES=/path/to/my.dylib
(gdb) run
When I do that, I always get the following:
/bin/bash: /usr/bin/arch: Operation not supported
/bin/bash: /usr/bin/arch: Unknown error: 0
Program exited with code 01.
By default, gdb runs a shell and /usr/bin/arch in order to launch
your program. DYLD_INSERT_LIBRARIES is inserting your dylib into
those processes as well, which apparently confuses /usr/bin/arch.
Try `set start-with-shell 0` in gdb before running your program.
Perfect, that works. Thanks!
-Jeff
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