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10 commits

Author SHA1 Message Date
Jim Kingdon
16726dd15b The point of these changes is to avoid reading the frame pointer
and stack pointer during stepping, to speed things up.
	A.  Changes to not select a frame until we need a selected frame:
	    * blockframe.c (flush_cached_frames): Call select_frame (NULL, -1).
	    * infrun.c (wait_for_inferior): Move call to select_frame back to
	    normal_stop.  This reverts a change of 13 Apr 94 (it says Jeff
	    Law, but the change was my idea); the only reason for that change
	    was so we could save and restore the selected frame in
	    wait_for_inferior, and now that flush_cached frames clears the
	    selected frame, that should work OK now.
	B.  Changes to not create a current_frame until we need one:
	    * blockframe.c (get_current_frame): If current_frame is NULL, try
	    to create an innermost frame.
	    * sparc-tdep.c (sparc_pop_frame), infcmd.c (run-stack_dummy),
	    infrun.c (wait_for_inferior), thread.c (thread_switch),
	    convex-tdep.c (set_thread_command), a29k-tdep.c (pop_frame),
	    alpha-tdep.c (alpha_pop_frame), convex-xdep.c (core_file_command),
	    h8300-tdep.c (h8300_pop_frame), h8500-tdep.c (h8300_pop_frame),
	    hppa-tdep.c (hppa_pop_frame), i386-tdep.c (i386_pop_frame),
	    i960-tdep.c (pop_frame), m68k-tdep.c
	    (m68k_pop_frame), mips-tdep.c (mips_pop_frame), rs6000-tdep.c
	    (push_dummy_frame, pop_dummy_frame, pop_frame), sh-tdep.c
	    (pop_frame), config/arm/tm-arm.h (POP_FRAME),
	    config/convex/tm-convex.h (POP_FRAME), config/gould/tm-pn.h
	    (POP_FRAME), config/ns32k/tm-merlin.h (POP_FRAME),
	    config/ns32k/tm-umax.h (POP_FRAME), config/tahoe/tm-tahoe.h
	    (POP_FRAME), config/vax/tm-vax.h (POP_FRAME): Don't
	    call create_new_frame.
	    * corelow.c (core_open), altos-xdep.c (core_file_command),
	    arm-xdep.c (core_file_command), gould-xdep.c (core_file_command),
	    m3-nat.c (select_thread), sun386-nat.c (core_file_command),
	    umax-xdep.c (core_file_command): Don't call create_new_frame; do
	    call flush_cached_frames.
	    * blockframe.c (reinit_frame_cache): Don't call create_new_frame
	    or select_frame.
	C.  Changes to get rid of stop_frame_address and instead only
	fetch the frame pointer when we need it.
	    * breakpoint.c (bpstat_stop_status): Remove argument
	    frame_address; use FRAME_FP (get_current_frame ()).
	    * infrun.c (wait_for_inferior): Don't pass frame pointer to
	    bpstat_stop_status.
	    * infrun.c (wait_for_inferior): Use FRAME_FP (get_current_frame
	    ()) instead of stop_frame_address.
	    * infrun.c (save_inferior_status, restore_inferior_status),
	    inferior.h (struct inferior_status): Don't save and restore
	    stop_frame_address.
	    * inferior.h, infcmd.c, thread.c (thread_switch), m3-nat.c
	    (select_thread): Remove stop_frame_address and uses thereof.
	D.  Same thing for the stack pointer.
	    * infrun.c (wait_for_inferior): Remove stop_sp and replace
	    uses thereof with read_sp ().
	E.  Change to eliminate one nasty little spot where we were
	wanting to know the frame pointer from before the current step
	(idea from GDB 3.5, which saved my ass, because my other ideas of
	how to fix it were very baroque).
	    * infrun.c: Remove prev_frame_address.
	    * infrun.c (wait_for_inferior, step_over_function): Use
	    step_frame_address instead of prev_frame_address.
	F.  Same basic idea for the stack pointer.
	    * inferior.h, infcmd.c: New variable step_sp.
	    * infcmd.c (step_1, until_next_command): Set it.
	    * infrun.c: Remove prev_sp and replace uses by step_sp.
	    * infrun.c (wait_for_inferior): If we get out of the step
	    range, then set step_sp to the current stack pointer before we
	    start going again.
1994-10-08 03:41:21 +00:00
Jim Kingdon
89ce0c8f50 gcc -Wall lint:
* thread.c: Include "gdbcmd.h" and <ctype.h>.
	* Makefile.in: Update dependency.
	* thread.c (thread_command): Remove unused variable p.
	* values.c (unpack_double): Use len instead of TYPE_LENGTH (type).
	* valprint.c (print_floating): Correctly check sign bit now that
	we are using unsigned arithmetic.
	* symtab.c (find_pc_line_range): Remove unused variables exact_match,
	ind, and l.
1993-11-10 15:58:48 +00:00
Stu Grossman
5090e82cca * inflow.c (terminal_init_inferior): Temporarily use Lynx PIDGET
macro to set process groups.
	* infptrace.c (child_resume): Temporarily use Lynx PIDGET to
	specify resumption of all threads.
	* infrun.c (wait_for_inferior):  Fix handling of thread-specific
	breakpoints for systems where DECR_PC_AFTER_BREAK > 0 (ie: backup
	PC by the right amount when continuing the thread).
	* thread.c (thread_apply_command):  Add the  `thread apply'
	command to apply a given GDB command to a list of threads.
1993-11-05 19:27:49 +00:00
Stu Grossman
de43d7d005 * breakpoint.c (breakpoint_thread_match break_command_1):
Thread-specific breakpoint support.
* breakpoint.h (struct breakpoint):  Add thread id field.
* fork-child.c (fork_inferior):  Move call to init_thread_list()
back a bit so that init_trace_fun can do thread functions.
* hppa-tdep.c (restore_pc_queue):  Add pid to call to target_wait.
* hppab-nat.c (child_resume):  Handle default pid.
* hppah-nat.c (child_resume):  Handle default pid.
* i386lynx-nat.c (child_wait):  New arg pid.
* inflow.c (kill_command):  Reset thread list.
* infptrace.c (child_resume):  Handle default pid.
* infrun.c:  Thread-specific breakpoint support.
* inftarg.c (child_wait):  Add pid arg.
* osfsolib.c (solib_create_inferior_hook):  Add pid to call to
target_resume.
* procfs.c:  Multi-thread support.
* remote-bug.c (bug_wait):  Add pid arg.
* remote-hms.c (hms_wait):  Add pid arg.
* remote-mips.c (mips_wait):  Add pid arg.
* remote-mon.c (monitor_wait):  Add pid arg.
* remote-nindy.c (nindy_wait):  Add pid arg.
* remote-sim.c (gdbsim_wait):  Add pid arg.
* remote-udi.c (udi_wait):  Add pid arg.
* remote-vx.c (vx_wait):  Add pid arg.
* remote-z8k.c (sim_wait):  Add pid arg.
* remote.c (remote_wait):  Add pid arg.
* solib.c (solib_create_inferior_hook):  Add pid to call to
target_resume.
* target.h (struct target_ops):  Add pid arg to to_wait and
to_notice_signals.
* thread.c (valid_thread_id):  New func to validate thread #s.
* (pid_to_thread_id):  New func to do the obvious.
* thread.h:  Prototypes for above.

* coff-solib.c (coff_solib_add):  Use nameoffset field to locate
filename.
1993-10-16 06:42:02 +00:00
Stu Grossman
d113e6b28e * corelow.c: Add multi thread/process support for core files with
.reg/XXX pseudo-sections.
* i386lynx-nat.c thread.h thread.c:  Remove unnecessary core file
support.
1993-09-25 00:40:20 +00:00
Jim Kingdon
37c99ddb4e * inferior.h, infrun.c, thread.c, infcmd.c: Remove all uses of
pc_changed.  If it was ever set to a non-zero value, it was before
	GDB 2.8.  It doesn't seem to have any useful function.
1993-09-13 20:54:00 +00:00
K. Richard Pixley
46c28185ab some gcc lint 1993-09-08 20:15:34 +00:00
Jim Kingdon
3082244d35 * thread.c (thread_switch): Define as static.
(add_thread): Cast return value from xmalloc.
1993-08-02 22:13:32 +00:00
Stu Grossman
da0baf42e1 Mon Aug 2 11:30:57 1993 Stu Grossman (grossman at cygnus.com)
* i386lynx-nat.c, thread.c, thread.h:  Update copyrights.
1993-08-02 18:33:21 +00:00
Stu Grossman
25286543da Sun Aug 1 22:58:18 1993 Stu Grossman (grossman at cygnus.com)
* Makefile.in (CLIBS):  Reorder to make Lynx ld happy.
	* (HFILES):  New file thread.h.
	* (OBS):  New file thread.c.
	* configure.in:  Host config for Lynx/386.
	* fork-child.c (fork_inferior):  Call init_thread_list().
	* infrun.c (resume):  Add pid to invocation of target_resume().
	* (wait_for_inferior): Pay attention to pid from target_wait().
	Multi-threading code now uses this to determine what to do.
	* inftarg.c (child_wait):  Conditionalize based on CHILD_WAIT macro.
	Use target_pid_to_str() macro throughout when printing pid.
	* inferior.h (child_resume):  Add pid to prototype.
	* hppab-nat.c hppah-nat.c infptrace.c (child_resume):  Pass in pid as
	argument, instead of using inferior_pid.
	* procfs.c (procfs_resume):  Pass in pid as argument.  Ignored for
	now.  Use target_pid_to_str() macro throughout for printing process id.
	* remote-adapt.c (adapt_resume):  Pass in pid as argument.
	* remote-eb.c (eb_resume):  Pass in pid as argument.
	* remote-es.c (es1800_resume):  Pass in pid as argument.
	* remote-hms.c (hms_resume):  Pass in pid as argument.
	* remote-mips.c (mips_resume):  Pass in pid as argument.
	* remote-mm.c (mm_resume):  Pass in pid as argument.
	* remote-monitor.c (monitor_resume):  Pass in pid as argument.
	* remote-nindy.c (nindy_resume):  Pass in pid as argument.
	* remote-sa.sparc.c (remote_resume):  Pass in pid as argument.
	* remote-sim.c (rem_resume):  Pass in pid as argument.
	* remote-sp64sim.c (simif_resume):  Pass in pid as argument.
	* remote-st.c (st2000_resume):  Pass in pid as argument.
	* remote-udi.c (udi_resume):  Pass in pid as argument.
	* remote-vx.c (vx_resume):  Pass in pid as argument.
	* remote-z8k.c (rem_resume):  Pass in pid as argument.
	* remote.c (remote_resume):  Pass in pid as argument.
	* solib.c (solid_create_inferior_hook):  Pass inferior_pid to
	target_resume().
	* target.c (normal_pid_to_str):  New routine to print out process
	ID normally.
	* target.h (struct target_ops):  Add pid to prototype at
	to_resume().  (target_resume):  Add pid argument.
	* (target_pid_to_str):  Default definition for normal type pids.
	* thread.c, thread.c:  New modules for multi thread/process control.
1993-08-02 06:25:36 +00:00