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Pedro Alves 8980e177bb Push thread->control.command_interp to the struct thread_fsm
I noticed that if we step into an inline function, step_1 never
reaches proceed, and thus nevers sets the thread's
tp->control.command_interp.  Because of that,
should_print_stop_to_console fails to determine that is should print
stop output to the console.

The fix is to set the thread's command_interp earlier.  However, I
realized that we can move that field to the thread_fsm, given that its
lifetime is exactly the same as thread_fsm.  So the patch plumbs all
fsms constructors to take the command interp and store it in the
thread_fsm.

We can see the fix in action, with e.g., the gdb.opt/inline-cmds.exp
test, and issuing a step when stopped at line 67:

 &"s\n"
 ^running
 *running,thread-id="all"
 (gdb)
 ~"67\t  result = func2 ();\n"
 *stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="main",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
 (gdb)
 s
 &"s\n"
 ^running
 *running,thread-id="all"
 (gdb)
+ ~"func2 () at /home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c:67\n"
+ ~"67\t  result = func2 ();\n"
 *stopped,reason="end-stepping-range",frame={addr="0x00000000004004d0",func="func2",args=[],file="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",fullname="/home/pedro/gdb/mygit/src/gdb/testsuite/gdb.opt/inline-cmds.c",line="67"},thread-id="1",stopped-threads="all",core="0"
 (gdb)

(The inline-cmds.exp command is adjusted to exercise this.)

(Due to the follow_fork change, this also fixes "next N" across a fork
with "set follow-fork child" with "set detach-on-fork on".  Commands
that rely on internal breakpoints, like "finish" will still require
more work to migrate breakpoints etc. to the child thread.)

gdb/ChangeLog:
2016-06-21  Pedro Alves  <palves@redhat.com>

	* breakpoint.c (new_until_break_fsm): Add 'cmd_interp' parameter.
	(until_break_fsm_should_stop, until_break_fsm_clean_up): Add
	thread parameter.
	(until_break_command): Pass command interpreter to thread fsm
	ctor.
	* cli/cli-interp.c (should_print_stop_to_console): Adjust.
	* gdbthread.h (struct thread_control_state) <command_interp>:
	Delete field.
	* infcall.c (new_call_thread_fsm): Add 'cmd_interp' parameter.
	Pass it down.
	(call_thread_fsm_should_stop): Add thread parameter.
	(call_function_by_hand_dummy): Pass command interpreter to thread
	fsm ctor.  Pass thread pointer to fsm clean up method.
	* infcmd.c: Include interps.h.
	(struct step_command_fsm) <thread>: Delete field.
	(new_step_command_fsm): Add 'cmd_interp' parameter.  Pass it down.
	(step_command_fsm_prepare): Remove references to fsm's thread
	field.
	(step_1): Pass command interpreter to thread
	fsm ctor.  Pass thread pointer to fsm clean up method.
	(step_command_fsm_should_stop, step_command_fsm_clean_up): Add
	thread parameter and use it.
	(new_until_next_fsm): Add 'cmd_interp' parameter.  Pass it down.
	(until_next_fsm_should_stop, until_next_fsm_clean_up): Add thread
	parameter and use it.
	(until_next_command): Pass command interpreter to thread fsm ctor.
	(struct finish_command_fsm) <thread>: Delete field.
	(finish_command_fsm_ops): Add NULL slot for should_notify_stop.
	(new_finish_command_fsm): Add 'cmd_interp' parameter and pass it
	down.  Remove thread parameter and adjust.
	(finish_command_fsm_should_stop, finish_command_fsm_clean_up): Add
	thread parameter and use it.
	(finish_command): Pass command interpreter to thread fsm ctor.
	Don't pass thread.
	* infrun.c (follow_fork): Move thread fsm to child fork instead of
	command interpreter, only.
	(clear_proceed_status_thread): Remove reference to command_interp.
	(proceed): Don't record the thread's command interpreter.
	(clean_up_just_stopped_threads_fsms): Pass thread to fsm clean_up
	method.
	(fetch_inferior_event): Pass thread to fsm should_stop method.
	* thread-fsm.c (thread_fsm_ctor): Add 'cmd_interp' parameter.
	Store it.
	(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
	parameter and pass it down.
	* thread-fsm.h (struct thread_fsm) <command_interp>: New field.
	(struct thread_fsm_ops) <clean_up, should_stop>: Add thread
	parameter.
	(thread_fsm_ctor): Add 'cmd_interp' parameter.
	(thread_fsm_clean_up, thread_fsm_should_stop): Add thread
	parameter.
	* thread.c (thread_cancel_execution_command): Pass thread to
	thread fsm clean_up method.

gdb/testsuite/ChangeLog:
2016-06-21  Pedro Alves  <palves@redhat.com>

	* gdb.opt/inline-cmds.c: Add "set mi break here" marker.
	* gdb.opt/inline-cmds.exp: Add MI tests.
2016-06-21 01:11:53 +01:00
bfd Automatic date update in version.in 2016-06-21 00:00:18 +00:00
binutils Fix simple gas testsuite failures. 2016-06-15 16:25:34 +01:00
config
cpu
elfcpp Add support for MIPS .rld_map section. 2016-06-20 12:16:26 -07:00
etc Fix compile time warning messages building with gcc v6.1.1 2016-06-13 10:49:26 +01:00
gas MIPS/GAS/testsuite: Uniquely identify MIPS64r6 tests 2016-06-20 23:43:24 +01:00
gdb Push thread->control.command_interp to the struct thread_fsm 2016-06-21 01:11:53 +01:00
gold gold/x86: Handle output without PLT 2016-06-20 12:28:32 -07:00
gprof
include bfd,opcodes: sparc: new opcode v9{c,d,e,v,m} architectures and bfd machine numbers. 2016-06-17 02:12:48 -07:00
intl
ld Use the IR symbol table for the IR input object 2016-06-20 05:10:46 -07:00
libdecnumber
libiberty Don't needlessly clear xmemdup allocated memory. 2016-05-31 20:34:47 +09:30
opcodes opcodes,gas: sparc: fix rdasr,wrasr,rdpr,wrpr,rdhpr,wrhpr insns. 2016-06-17 02:15:43 -07:00
readline
sim
texinfo
zlib
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ChangeLog Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
compile
config-ml.in
config.guess Fix typo introduced during the most recent synchronization update. 2016-05-27 14:34:06 +01:00
config.rpath
config.sub Sync config.guess and config.sub with FSF GCC mainline versions 2016-05-23 11:42:17 +01:00
configure
configure.ac
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depcomp
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MAINTAINERS
Makefile.def
Makefile.in Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
Makefile.tpl Add dependencies to configure rule 2016-05-28 22:36:04 +09:30
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		   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.