From: Markus Metzger <markus.t.metzger@intel.com>
To: jan.kratochvil@redhat.com
Cc: gdb-patches@sourceware.org
Subject: [patch v4 00/24] record-btrace: reverse
Date: Wed, 03 Jul 2013 09:15:00 -0000 [thread overview]
Message-ID: <1372842874-28951-1-git-send-email-markus.t.metzger@intel.com> (raw)
This addresses fails reported by Jan on v3. I also merged in a few
fixes for bugs I found.
This patch series adds support for the "record goto" command and for
reverse execution to the btrace record target.
Since btrace only records the control flow, reverse execution is limited
to modifying the PC register. It does not support evaluating variables.
We do support the "backtrace" command, though. The back trace is computed
from the control-flow trace rather than by unwinding stack frames.
There are a number of opens wrt unwinding and reverse execution. The
opens are listed in the commit messages of the respective patches towards
the end of the series. This makes the series more an RFC than a real
PATCH series, I suppose.
It also changes the existing "record function-call-history" and "record
instruction-history" commands slightly and fixes PR/15240. The "record
function-call-history" command can now show the call relationship like this:
(gdb) record function-call-history /cli
12 fib inst 101,111 at src/fib.c:3,7
13 fib inst 112,124 at src/fib.c:3,8
14 fib inst 125,129 at src/fib.c:7
15 fib inst 130,142 at src/fib.c:3,8
16 fib inst 143,147 at src/fib.c:7,8
17 fib inst 148,152 at src/fib.c:7,8
18 fib inst 153,157 at src/fib.c:7
19 fib inst 158,168 at src/fib.c:3,7
20 fib inst 169,179 at src/fib.c:3,7
21 fib inst 180,185 at src/fib.c:3,4
Markus Metzger (24):
gdbarch: add instruction predicate methods
record: upcase record_print_flag enumeration constants
btrace: change branch trace data structure
record-btrace: fix insn range in function call history
record-btrace: start counting at one
btrace: increase buffer size
record-btrace: optionally indent function call history
record-btrace: make ranges include begin and end
btrace: add replay position to btrace thread info
target: add ops parameter to to_prepare_to_store method
record-btrace: supply register target methods
frame, backtrace: allow targets to supply a frame unwinder
record-btrace, frame: supply target-specific unwinder
record-btrace: provide xfer_partial target method
record-btrace: add to_wait and to_resume target methods.
record-btrace: provide target_find_new_threads method
record-btrace: add record goto target methods
record-btrace: extend unwinder
btrace, linux: fix memory leak when reading branch trace
btrace, gdbserver: read branch trace incrementally
record-btrace: show trace from enable location
infrun: reverse stepping from unknown functions
record-btrace: add (reverse-)stepping support
record-btrace: skip tail calls in back trace
gdb/NEWS | 18 +
gdb/amd64-tdep.c | 67 +
gdb/arch-utils.c | 15 +
gdb/arch-utils.h | 4 +
gdb/btrace.c | 1373 +++++++++++++++++---
gdb/btrace.h | 262 ++++-
gdb/common/btrace-common.h | 6 +-
gdb/common/linux-btrace.c | 110 ++-
gdb/common/linux-btrace.h | 5 +-
gdb/doc/gdb.texinfo | 30 +-
gdb/dwarf2-frame.c | 8 +-
gdb/frame-unwind.c | 80 +-
gdb/frame.c | 47 +-
gdb/frame.h | 8 +-
gdb/gdbarch.c | 105 ++
gdb/gdbarch.h | 24 +
gdb/gdbarch.sh | 9 +
gdb/gdbserver/linux-low.c | 18 +-
gdb/gdbserver/server.c | 11 +-
gdb/gdbserver/target.h | 6 +-
gdb/i386-tdep.c | 59 +
gdb/inf-child.c | 2 +-
gdb/infrun.c | 2 +-
gdb/monitor.c | 2 +-
gdb/ravenscar-thread.c | 7 +-
gdb/record-btrace.c | 1375 +++++++++++++++++---
gdb/record-full.c | 3 +-
gdb/record.c | 8 +-
gdb/record.h | 7 +-
gdb/remote-m32r-sdi.c | 2 +-
gdb/remote-mips.c | 5 +-
gdb/remote.c | 28 +-
gdb/target.c | 51 +-
gdb/target.h | 26 +-
gdb/testsuite/gdb.btrace/Makefile.in | 3 +-
gdb/testsuite/gdb.btrace/delta.exp | 76 ++
gdb/testsuite/gdb.btrace/exception.cc | 56 +
gdb/testsuite/gdb.btrace/exception.exp | 67 +
gdb/testsuite/gdb.btrace/finish.exp | 70 +
gdb/testsuite/gdb.btrace/function_call_history.exp | 328 +++--
gdb/testsuite/gdb.btrace/instruction_history.exp | 72 +-
gdb/testsuite/gdb.btrace/multi-thread-step.c | 53 +
gdb/testsuite/gdb.btrace/multi-thread-step.exp | 84 ++
gdb/testsuite/gdb.btrace/next.exp | 89 ++
gdb/testsuite/gdb.btrace/nexti.exp | 89 ++
gdb/testsuite/gdb.btrace/record_goto.c | 51 +
gdb/testsuite/gdb.btrace/record_goto.exp | 166 +++
gdb/testsuite/gdb.btrace/rn-dl-bind.c | 37 +
gdb/testsuite/gdb.btrace/rn-dl-bind.exp | 48 +
gdb/testsuite/gdb.btrace/step.exp | 113 ++
gdb/testsuite/gdb.btrace/stepi.exp | 114 ++
gdb/testsuite/gdb.btrace/tailcall.exp | 85 ++
gdb/testsuite/gdb.btrace/unknown_functions.c | 45 +
gdb/testsuite/gdb.btrace/unknown_functions.exp | 60 +
gdb/testsuite/gdb.btrace/x86-record_goto.S | 332 +++++
gdb/testsuite/gdb.btrace/x86-tailcall.S | 269 ++++
gdb/testsuite/gdb.btrace/x86-tailcall.c | 39 +
57 files changed, 5420 insertions(+), 709 deletions(-)
create mode 100644 gdb/testsuite/gdb.btrace/delta.exp
create mode 100644 gdb/testsuite/gdb.btrace/exception.cc
create mode 100755 gdb/testsuite/gdb.btrace/exception.exp
create mode 100644 gdb/testsuite/gdb.btrace/finish.exp
create mode 100644 gdb/testsuite/gdb.btrace/multi-thread-step.c
create mode 100644 gdb/testsuite/gdb.btrace/multi-thread-step.exp
create mode 100644 gdb/testsuite/gdb.btrace/next.exp
create mode 100644 gdb/testsuite/gdb.btrace/nexti.exp
create mode 100644 gdb/testsuite/gdb.btrace/record_goto.c
create mode 100644 gdb/testsuite/gdb.btrace/record_goto.exp
create mode 100644 gdb/testsuite/gdb.btrace/rn-dl-bind.c
create mode 100644 gdb/testsuite/gdb.btrace/rn-dl-bind.exp
create mode 100644 gdb/testsuite/gdb.btrace/step.exp
create mode 100644 gdb/testsuite/gdb.btrace/stepi.exp
create mode 100644 gdb/testsuite/gdb.btrace/tailcall.exp
create mode 100644 gdb/testsuite/gdb.btrace/unknown_functions.c
create mode 100644 gdb/testsuite/gdb.btrace/unknown_functions.exp
create mode 100644 gdb/testsuite/gdb.btrace/x86-record_goto.S
create mode 100644 gdb/testsuite/gdb.btrace/x86-tailcall.S
create mode 100644 gdb/testsuite/gdb.btrace/x86-tailcall.c
next reply other threads:[~2013-07-03 9:14 UTC|newest]
Thread overview: 88+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-03 9:15 Markus Metzger [this message]
2013-07-03 9:14 ` [patch v4 24/24] record-btrace: skip tail calls in back trace Markus Metzger
2013-08-18 19:10 ` Jan Kratochvil
2013-09-17 14:28 ` Metzger, Markus T
2013-09-18 8:28 ` Metzger, Markus T
2013-09-18 9:52 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 20/24] btrace, gdbserver: read branch trace incrementally Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-09-16 12:48 ` Metzger, Markus T
2013-09-22 14:42 ` Jan Kratochvil
2013-09-23 7:09 ` Metzger, Markus T
2013-09-25 19:05 ` Jan Kratochvil
2013-09-26 6:27 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 11/24] record-btrace: supply register target methods Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-09-16 9:19 ` Metzger, Markus T
2013-09-22 13:55 ` Jan Kratochvil
2013-09-23 6:55 ` Metzger, Markus T
2013-07-03 9:14 ` [patch v4 10/24] target: add ops parameter to to_prepare_to_store method Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 19/24] btrace, linux: fix memory leak when reading branch trace Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 03/24] btrace: change branch trace data structure Markus Metzger
2013-08-18 19:05 ` Jan Kratochvil
2013-09-10 9:11 ` Metzger, Markus T
2013-09-12 20:09 ` Jan Kratochvil
2013-09-16 9:01 ` Metzger, Markus T
2013-09-21 19:44 ` Jan Kratochvil
2013-09-23 6:54 ` Metzger, Markus T
2013-09-23 7:15 ` Jan Kratochvil
2013-09-23 7:27 ` Metzger, Markus T
2013-09-22 16:57 ` Jan Kratochvil
2013-09-22 17:16 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 05/24] record-btrace: start counting at one Markus Metzger
2013-08-18 19:11 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 09/24] btrace: add replay position to btrace thread info Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-09-10 13:24 ` Metzger, Markus T
2013-09-12 20:19 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 16/24] record-btrace: provide target_find_new_threads method Markus Metzger
2013-08-18 19:15 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 07/24] record-btrace: optionally indent function call history Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-09-10 13:06 ` Metzger, Markus T
2013-09-10 13:08 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 08/24] record-btrace: make ranges include begin and end Markus Metzger
2013-08-18 19:12 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 22/24] infrun: reverse stepping from unknown functions Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 14/24] record-btrace: provide xfer_partial target method Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-09-16 9:30 ` Metzger, Markus T
2013-09-22 14:18 ` Jan Kratochvil
2013-07-03 9:14 ` [patch v4 02/24] record: upcase record_print_flag enumeration constants Markus Metzger
2013-08-18 19:11 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 01/24] gdbarch: add instruction predicate methods Markus Metzger
2013-07-03 9:49 ` Mark Kettenis
2013-07-03 11:10 ` Metzger, Markus T
2013-08-18 19:04 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 04/24] record-btrace: fix insn range in function call history Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 18/24] record-btrace: extend unwinder Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-09-16 11:21 ` Metzger, Markus T
2013-09-27 13:55 ` Jan Kratochvil
2013-09-30 9:45 ` Metzger, Markus T
2013-09-30 10:26 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 21/24] record-btrace: show trace from enable location Markus Metzger
2013-08-18 19:10 ` instruction_history.exp unset variable [Re: [patch v4 21/24] record-btrace: show trace from enable location] Jan Kratochvil
2013-09-16 14:11 ` Metzger, Markus T
2013-08-18 19:16 ` [patch v4 21/24] record-btrace: show trace from enable location Jan Kratochvil
2013-07-03 9:15 ` [patch v4 12/24] frame, backtrace: allow targets to supply a frame unwinder Markus Metzger
2013-08-18 19:14 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 13/24] record-btrace, frame: supply target-specific unwinder Markus Metzger
2013-08-18 19:07 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 06/24] btrace: increase buffer size Markus Metzger
2013-08-18 19:06 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 23/24] record-btrace: add (reverse-)stepping support Markus Metzger
2013-08-18 19:09 ` Jan Kratochvil
2013-09-17 9:43 ` Metzger, Markus T
2013-09-29 17:24 ` Jan Kratochvil
2013-09-30 9:30 ` Metzger, Markus T
2013-09-30 10:25 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 15/24] record-btrace: add to_wait and to_resume target methods Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-07-03 9:15 ` [patch v4 17/24] record-btrace: add record goto " Markus Metzger
2013-08-18 19:08 ` Jan Kratochvil
2013-08-18 19:04 ` [patch v4 00/24] record-btrace: reverse Jan Kratochvil
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