Your message dated Sun, 15 Jul 2018 10:34:12 +0000
with message-id <[email protected]>
and subject line Bug#872800: fixed in gdb 8.1-1
has caused the Debian Bug report #872800,
regarding Enable Intel PT recording format
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
872800: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=872800
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: gdb
Version: 7.12-6
Severity: wishlist
Tags: patch
Dear maintainer,
please enable the --with-intel-pt configuration option for gdb. This allows for
efficient Record-And-Play functionality in GDB [1]
Intel PT (Processor Trace) provides hardware-level tracing capabilities with
minimal performance overhead on modern Intel CPUs (beginning with the Broadwell
micro-architecture).
For more information about Intel PT, please refer to [2] and [3].
The Intel PT kernel driver has been merged in 4.1 and various bug fixes have
come since ([4]).
GDB supports the Intel PT backend for reverse-stepping / backwards-debugging
since 7.10.
Decoding of the packet stream generated by the Intel hardware is done by
Intel's Processor Trace Decoding Library libipt [5]. Thus, this patchs adds a
build-dependency on libipt-dev and a runtime dependency on libipt1.
Please see the patch attached.
Greetings
Jack
[1] https://sourceware.org/gdb/onlinedocs/gdb/Process-Record-and-Replay.html
[2] https://software.intel.com/en-us/blogs/2013/09/18/processor-tracing
[3] https://old.lwn.net/Articles/648154/
[4] http://halobates.de/blog/p/410
[5] https://github.com/01org/processor-trace
From b3fa17d7a4d2eb5d50ecd81f0ae339139b34d854 Mon Sep 17 00:00:00 2001
From: Jack Henschel <[email protected]>
Date: Mon, 21 Aug 2017 13:21:35 +0200
Subject: [PATCH] Enable Intel PT
---
debian/control.in | 1 +
debian/rules | 5 +++++
2 files changed, 6 insertions(+)
diff --git a/debian/control.in b/debian/control.in
index 917c36cdb..db3dafdb7 100644
--- a/debian/control.in
+++ b/debian/control.in
@@ -35,6 +35,7 @@ Build-Depends:
liblzma-dev,
libbabeltrace-dev [amd64 armel armhf i386 kfreebsd-amd64 kfreebsd-i386 mips mipsel mips64el powerpc s390x],
libbabeltrace-ctf-dev [amd64 armel armhf i386 kfreebsd-amd64 kfreebsd-i386 mips mipsel mips64el powerpc s390x],
+ libipt-dev [amd64],
python-dev,
# Python3 build
python3-dev,
diff --git a/debian/rules b/debian/rules
index 74835a2f7..3850cc53b 100755
--- a/debian/rules
+++ b/debian/rules
@@ -93,6 +93,11 @@ ifneq (,$(filter $(DEB_HOST_ARCH),amd64 armel armhf i386 kfreebsd-amd64 kfreebsd
arch_config_args += --with-babeltrace
endif
+# Enable Intel Processor Trace (PT) on Linux x86 platform
+ifneq (,$(filter $(DEB_HOST_ARCH),amd64 i386))
+ arch_config_args += --with-intel-pt
+endif
+
ifdef GDB_TARGET
run_tests := no
--
2.14.1
signature.asc
Description: OpenPGP digital signature
--- End Message ---
--- Begin Message ---
Source: gdb
Source-Version: 8.1-1
We believe that the bug you reported is fixed in the latest version of
gdb, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Héctor Orón Martínez <[email protected]> (supplier of updated gdb package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Wed, 11 Jul 2018 19:59:33 +0200
Source: gdb
Binary: gdb gdb-python2 gdb-minimal gdb-multiarch gdbserver gdb-source
Architecture: source
Version: 8.1-1
Distribution: unstable
Urgency: medium
Maintainer: Héctor Orón Martínez <[email protected]>
Changed-By: Héctor Orón Martínez <[email protected]>
Description:
gdb - GNU Debugger
gdb-minimal - GNU Debugger (minimal version)
gdb-multiarch - GNU Debugger (with support for multiple architectures)
gdb-python2 - GNU Debugger (linked against python2)
gdb-source - GNU Debugger (source)
gdbserver - GNU Debugger (remote server)
Closes: 872800 881569 883814 884105 886658 894702
Changes:
gdb (8.1-1) unstable; urgency=medium
.
[ Héctor Orón Martínez ]
* Imported Upstream version 8.1, changes in this release:
- Breakpoints on C++ functions are now set on all scopes by default
("wild" matching);
- Support for inserting breakpoints on functions marked with C++ ABI tags;
- Target floating-point arithmetic emulation during expression evaluation
(requires MPFR 3.1 or later);
- Various Python Scripting enhancements;
- Improved Rust support; in particular, Trait objects can now be inspected
when debugging Rust code;
- GDB no longer makes assumptions about the type of symbols without
debugging information to avoid producing erroneous and often confusing
results;
- The 'enable' and 'disable' commands now accept a range of breakpoint
locations;
- New 'starti' command to start the program at the first instruction;
- New 'rbreak' command to insert a number of breakpoints via a regular
expression pattern (requires Python);
- The 'ptype' command now supports printing the offset and size of
the fields in a struct;
- The 'gcore' command now supports dumping all the memory mappings
('-a' command-line option);
- New shortcuts for TUI Single-Key mode: 'i' for stepi, and 'o' for nexti;
- GDBserver enhancements:
+ Support for transmitting environment variables to GDBserver;
+ Support for starting inferior processes with a specified initial
working directory;
+ On Unix systems, support for globbing expansion and variable
substitution of inferior command-line arguments;
- Various completion enhancements;
- The command used to compile and inject code with the 'compile' command
is now configurable;
- New '--readnever' command-line option to speed the GDB startup when
debugging information is not needed;
- Support for the following new native configurations:
+ FreeBSD/aarch64 (aarch64*-*-freebsd*);
+ FreeBSD/arm (arm*-*-freebsd*);
- Support for the following new targets:
+ FreeBSD/aarch64 (aarch64*-*-freebsd*);
+ FreeBSD/arm (arm*-*-freebsd*);
+ OpenRISC ELF (or1k*-*-elf)
- Removed support for the following targets and native configurations:
+ Solaris2/x86 (i?86-*-solaris2.[0-9]);
+ Solaris2/sparc (sparc*-*-solaris2.[0-9]);
(Closes: #886658, #881569, #894702)
* debian/patches: refresh series
* debian/copyright: use https instead http
* debian/control.in: set Rules-Requires-Root to no
* debian/control.in: bump standards version
* debian/control.in: thanks Samuel Bronson for past work
(Closes: #883814)
* debian/control.in: thanks Luca Bruno for past work
* debian/control: sync to debian/control.in
.
[ James Clarke ]
* Use unversioned libunwind-dev build dependency on ia64
(Closes: #884105)
.
[ Jack Henschel ]
* Enable Intel PT
(Closes: #872800)
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