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| author | Pedro Alves <palves@redhat.com> | 2013-05-23 17:17:50 +0000 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2013-05-23 17:17:50 +0000 |
| commit | 6876850721768f002bdebf47ea013b6283403d37 (patch) | |
| tree | e74423040d1475a4cef93a62b049cb7af2b6753f /gdb/NEWS | |
| parent | ee9c380976c428455ba465c586e1c945fb1c0e97 (diff) | |
| download | gdb-6876850721768f002bdebf47ea013b6283403d37.tar.gz | |
range stepping: gdbserver (x86 GNU/Linux)
This patch adds support for range stepping to GDBserver, teaching it
about vCont;r.
It'd be easy to enable this for all hardware single-step targets
without needing the linux_target_ops hook, however, at least PPC needs
special care, due to the fact that PPC atomic sequences can't be
hardware single-stepped through, a thing which GDBserver doesn't know
about. So this leaves the support limited to x86/x86_64.
gdb/
2013-05-23 Pedro Alves <palves@redhat.com>
* NEWS: Mention GDBserver range stepping support.
gdb/gdbserver/
2013-05-23 Yao Qi <yao@codesourcery.com>
Pedro Alves <palves@redhat.com>
* linux-low.c (lwp_in_step_range): New function.
(linux_wait_1): If the thread was range stepping and stopped
outside the stepping range, report the stop to GDB. Otherwise,
continue stepping. Add range stepping debug output.
(linux_set_resume_request): Copy the step range from the resume
request to the lwp.
(linux_supports_range_stepping): New.
(linux_target_ops) <supports_range_stepping>: Set to
linux_supports_range_stepping.
* linux-low.h (struct linux_target_ops)
<supports_range_stepping>: New field.
(struct lwp_info) <step_range_start, step_range_end>: New fields.
* linux-x86-low.c (x86_supports_range_stepping): New.
(the_low_target) <supports_range_stepping>: Set to
x86_supports_range_stepping.
* server.c (handle_v_cont): Handle 'r' action.
(handle_v_requests): Append ";r" if the target supports range
stepping.
* target.h (struct thread_resume) <step_range_start,
step_range_end>: New fields.
(struct target_ops) <supports_range_stepping>:
New field.
(target_supports_range_stepping): New macro.
Diffstat (limited to 'gdb/NEWS')
| -rw-r--r-- | gdb/NEWS | 5 |
1 files changed, 5 insertions, 0 deletions
@@ -95,6 +95,11 @@ vCont;r stub to step through an address range itself, without GDB involvemement at each single-step. +* New features in the GDB remote stub, GDBserver + + ** GDBserver now supports target-assisted range stepping. Currently + enabled on x86/x86_64 GNU/Linux targets. + *** Changes in GDB 7.6 * Target record has been renamed to record-full. |