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Re: ia64 patch to handle predicated insns in prologue
- From: Kevin Buettner <kevinb at redhat dot com>
- To: "J. Johnston" <jjohnstn at redhat dot com>, gdb-patches at sources dot redhat dot com
- Date: Tue, 26 Aug 2003 13:10:50 -0700
- Subject: Re: ia64 patch to handle predicated insns in prologue
- References: <3F4BA737.7030805@redhat.com>
On Aug 26, 2:30pm, J. Johnston wrote:
> The accompanying patch handles a bug in backtracing through glibc's sleep.
> The compiler generates some predicated insns prior to saving the return register
> b0 into a register stack register. The current code stops when it sees a
> predicated insn. The change makes the prologue examination stop only if the
> function is frameless or we have already seen the return register.
>
> This removes a number of failures in gdb.threads caused when we catch another
> thread in sleep and we try and backtrace.
>
> Ok to commit?
Okay.
Thanks again,
Kevin