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From: Mick Jordan <mick.jordan@oracle.com>
To: gdb@sourceware.org
Subject: gdb on Mac OS bpt implementation question
Date: Tue, 08 Nov 2011 23:42:00 -0000	[thread overview]
Message-ID: <4EB9BE43.7050200@oracle.com> (raw)

I'd be grateful if someone could point me to where in the gdb source 
code that Mac OS specific breakpoint setting is done. The problem I am 
trying to resolve is how breakpoints are set in shared libraries, given 
that they are loaded read-only on Mac OS X (assuming the "write a bpt 
instruction" approach). The context for this is a custom debugger we 
have for a Java VM (Maxine) which uses "write a bpt instruction" and 
works fine setting breakpoints in shared library code on Linux and 
Solaris, but not on MacOS (we get access faults trying to write the BPT 
instruction).

Thanks
Mick Jordan

             reply	other threads:[~2011-11-08 23:42 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-11-08 23:42 Mick Jordan [this message]
2011-11-09  7:48 ` Tristan Gingold
2011-11-10 22:19 ` Jason Molenda

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