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Re: [rfc, s390] [gdb part] Support extended register sets
- From: Tom Tromey <tromey at redhat dot com>
- To: "Ulrich Weigand" <uweigand at de dot ibm dot com>
- Cc: gdb-patches at sourceware dot org
- Date: Fri, 02 Dec 2011 09:26:37 -0700
- Subject: Re: [rfc, s390] [gdb part] Support extended register sets
- References: <201112011538.pB1Fc4tA018987@d06av02.portsmouth.uk.ibm.com>
>>>>> "Ulrich" == Ulrich Weigand <uweigand@de.ibm.com> writes:
Ulrich> Since I'm already at it, the patch also adds another register,
Ulrich> which is unrelated to system call restarting, but also has been
Ulrich> added to the kernel a while ago and is not yet supported in GDB:
Ulrich> last_break: presented as a new register set NT_S390_LAST_BREAK,
Ulrich> always size 8 bytes; holds the address of the last branch
Ulrich> instruction
Nice. Jan had an idea for a way this would be useful to gdb:
http://sourceware.org/bugzilla/show_bug.cgi?id=11705
Tom