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Pedro Alves 32990adaad Reduce Hg packet (select remote general thread) bouncing
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.
2014-10-02 09:55:38 +01:00
bfd daily update 2014-10-02 09:30:37 +09:30
binutils Readelf: Handle forward references to CIEs 2014-09-22 18:57:16 +09:30
config Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
cpu or1k: add missing l.msync, l.psync and l.psync instructions. 2014-07-20 20:26:09 +03:00
elfcpp Add tls support to gold aarch64 backend. 2014-09-17 14:24:10 -07:00
etc PR external/{16327,16328}: Remove etc/configure.texi and etc/standards.texi. 2014-06-27 11:33:25 +02:00
gas 2014-09-29 Terry Guo <terry.guo@arm.com> 2014-09-29 10:12:10 +08:00
gdb Reduce Hg packet (select remote general thread) bouncing 2014-10-02 09:55:38 +01:00
gold Fix error from previous patch where tosize and tovalue were redefined 2014-09-30 16:06:50 -07:00
gprof Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
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ld Find lto plugin when using gcc-5.0 2014-09-22 19:04:48 +09:30
libdecnumber PR c/59871 c/ * c-typeck.c (build_compound_expr): Warn even for right-hand operand of a comma expression. (emit_side_effect_warnings): Likewise. libdecnumber/ * decNumberLocal.h (UBFROMUS, UBFROMUI): Remove last argument. testsuite/ * gcc.dg/20020220-2.c: Adjust dg-warning message. * gcc.dg/pr59871.c: New test. 2014-05-08 10:18:28 -06:00
libiberty Delete temporary string within demangler even in failure cases. 2014-06-11 11:41:51 +01:00
opcodes Ignore MOD field for control/debug register move 2014-09-22 09:38:53 -07:00
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Makefile.def PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.in PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.tpl PR bootstrap/58572 * Makefile.tpl (POSTSTAGE1_CXX_EXPORT): Use -isystem instead of -I for libstdc++-v3 includes if $(LEAN). * Makefile.in: Regenerated. 2014-05-08 10:18:29 -06:00
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		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
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	CC=gcc ./configure
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