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32990adaad
A patch I wrote made GDB pull the thread list sooner when debugging with target remote, and I noticed an intended consequence. GDB started bouncing around the currently selected remote/general thread more frequently. E.g.: Sending packet: $qTMinFTPILen#3b...Packet received: 5 +Sending packet: $Hgp726d.726d#53...Packet received: OK Sending packet: $m400680,40#2f...Packet received: 85c0741455bff00d60004889e5ffd05de97bffffff0f1f00e973ffffff0f1f00554889e5c745fc00000000c745fc01000000e900000000c745fc02000000b800 +Sending packet: $Hgp726d.7278#28...Packet received: OK Sending packet: $m4006b2,1#28...Packet received: e9 Fast tracepoint 2 at 0x4006b2: file gdb/testsuite/gdb.trace/range-stepping.c, line 53. Sending packet: $qTStatus#49...Packet received: T0;tnotrun:0;tframes:0;tcreated:0;tfree:500000;tsize:500000;circular:0;disconn:0;starttime:0;stoptime:0;username:;notes:: This ended up breaking "tstart" when one has fast tracepoints set, because gdbserver isn't expecting an Hg packet in response to qRelocInsn: (gdb) ftrace *set_point Fast tracepoint 3 at 0x4006b2: file gdb/testsuite/gdb.trace/range-stepping.c, line 53. (gdb) PASS: gdb.trace/range-stepping.exp: ftrace: ftrace *set_point tstart gdbserver: Malformed response to qRelocInsn, ignoring: Hgp2783.2783 Target does not support this command. (gdb) FAIL: gdb.trace/range-stepping.exp: ftrace: tstart remote_trace_start should probably start by making sure the remote current thread matches inferior_ptid (calling set_general_thread), but still, reducing unnecessary bouncing is a good idea. It happens because the memory/symbol/breakpoint routines use switch_to_program_space_and_thread to do something in the right context and then revert back to the previously current thread. The fix is to simply make any_thread_of_process, find_inferior_for_program_space, etc. give preference to the current thread/inferior it if matches. gdb/ 2014-10-02 Pedro Alves <palves@redhat.com> * gdbthread.h (any_thread_of_process, any_live_thread_of_process): Adjust comments. * inferior.c (find_inferior_for_program_space): Give preference to the current inferior. * inferior.h (find_inferior_for_program_space): Update comment. * progspace.c (switch_to_program_space_and_thread): Prefer the current inferior if it's bound to the program space requested. If the inferior found doesn't have a PID yet, don't bother looking up a thread. * progspace.h (switch_to_program_space_and_thread): Adjust comment. * thread.c (any_thread_of_process, any_live_thread_of_process): Give preference to the current thread. |
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bfd | ||
binutils | ||
config | ||
cpu | ||
elfcpp | ||
etc | ||
gas | ||
gdb | ||
gold | ||
gprof | ||
include | ||
intl | ||
ld | ||
libdecnumber | ||
libiberty | ||
opcodes | ||
readline | ||
sim | ||
texinfo | ||
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.gitattributes | ||
.gitignore | ||
ChangeLog | ||
compile | ||
config-ml.in | ||
config.guess | ||
config.rpath | ||
config.sub | ||
configure | ||
configure.ac | ||
COPYING | ||
COPYING.LIB | ||
COPYING.LIBGLOSS | ||
COPYING.NEWLIB | ||
COPYING3 | ||
COPYING3.LIB | ||
depcomp | ||
djunpack.bat | ||
install-sh | ||
libtool.m4 | ||
ltgcc.m4 | ||
ltmain.sh | ||
ltoptions.m4 | ||
ltsugar.m4 | ||
ltversion.m4 | ||
lt~obsolete.m4 | ||
MAINTAINERS | ||
Makefile.def | ||
Makefile.in | ||
Makefile.tpl | ||
makefile.vms | ||
missing | ||
mkdep | ||
mkinstalldirs | ||
move-if-change | ||
README | ||
README-maintainer-mode | ||
setup.com | ||
src-release.sh | ||
symlink-tree | ||
ylwrap |
README for GNU development tools This directory contains various GNU compilers, assemblers, linkers, debuggers, etc., plus their support routines, definitions, and documentation. If you are receiving this as part of a GDB release, see the file gdb/README. If with a binutils release, see binutils/README; if with a libg++ release, see libg++/README, etc. That'll give you info about this package -- supported targets, how to use it, how to report bugs, etc. It is now possible to automatically configure and build a variety of tools with one command. To build all of the tools contained herein, run the ``configure'' script here, e.g.: ./configure make To install them (by default in /usr/local/bin, /usr/local/lib, etc), then do: make install (If the configure script can't determine your type of computer, give it the name as an argument, for instance ``./configure sun4''. You can use the script ``config.sub'' to test whether a name is recognized; if it is, config.sub translates it to a triplet specifying CPU, vendor, and OS.) If you have more than one compiler on your system, it is often best to explicitly set CC in the environment before running configure, and to also set CC when running make. For example (assuming sh/bash/ksh): CC=gcc ./configure make A similar example using csh: setenv CC gcc ./configure make Much of the code and documentation enclosed is copyright by the Free Software Foundation, Inc. See the file COPYING or COPYING.LIB in the various directories, for a description of the GNU General Public License terms under which you can copy the files. REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info on where and how to report problems.