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authorDaniel Jacobowitz <drow@false.org>2007-07-02 21:29:28 +0000
committerDaniel Jacobowitz <drow@false.org>2007-07-02 21:29:28 +0000
commitb0f4b84b5c44685c7880e9e3e013314590662a17 (patch)
tree0071037729bf478008a8a49a212f72c8b6e18caf /gdb/infrun.c
parent9bbf65bb0848c4ea2887cdd4ca39561249ef11f5 (diff)
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* infrun.c (inferior_ignoring_startup_exec_events): Delete.
(start_remote): Use STOP_QUIETLY_REMOTE. (handle_inferior_event): Do not condition TARGET_WAITKIND_LOADED support on a SOLIB_ADD definition. Update breakpoints_inserted. Update to match shared library event breakpoint support. Only resume if appropriate. Handle STOP_QUIETLY_REMOTE. (normal_stop): Handle TARGET_WAITKIND_LOADED. * fork-child.c (startup_inferior): Do not set inferior_ignoring_startup_exec_events * inferior.h (inferior_ignoring_startup_exec_events): Delete declaration. (enum stop_kind): Improve documentation. Add STOP_QUIETLY_REMOTE. * config/gdbserver.exp (gdb_reconnect): New. * gdb.base/so-disc-shr.c, gdb.base/solib-disc.c, gdb.base/solib-disc.exp: New files. * lib/gdb.exp (gdb_test_multiple): Allow tests to match "Ending remote debugging". (gdb_compile): Add shlib_load flag. * lib/gdbserver-support.exp (gdbserver_run): Save the protocol and port. (gdbserver_reconnect): New.
Diffstat (limited to 'gdb/infrun.c')
-rw-r--r--gdb/infrun.c79
1 files changed, 65 insertions, 14 deletions
diff --git a/gdb/infrun.c b/gdb/infrun.c
index 346e6c8..b7c0b70 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -84,7 +84,6 @@ static int prepare_to_proceed (void);
void _initialize_infrun (void);
-int inferior_ignoring_startup_exec_events = 0;
int inferior_ignoring_leading_exec_events = 0;
/* When set, stop the 'step' command if we enter a function which has
@@ -828,7 +827,7 @@ start_remote (int from_tty)
{
init_thread_list ();
init_wait_for_inferior ();
- stop_soon = STOP_QUIETLY;
+ stop_soon = STOP_QUIETLY_REMOTE;
trap_expected = 0;
/* Always go on waiting for the target, regardless of the mode. */
@@ -1297,16 +1296,22 @@ handle_inferior_event (struct execution_control_state *ecs)
case TARGET_WAITKIND_LOADED:
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: TARGET_WAITKIND_LOADED\n");
- /* Ignore gracefully during startup of the inferior, as it
- might be the shell which has just loaded some objects,
- otherwise add the symbols for the newly loaded objects. */
-#ifdef SOLIB_ADD
+ /* Ignore gracefully during startup of the inferior, as it might
+ be the shell which has just loaded some objects, otherwise
+ add the symbols for the newly loaded objects. Also ignore at
+ the beginning of an attach or remote session; we will query
+ the full list of libraries once the connection is
+ established. */
if (stop_soon == NO_STOP_QUIETLY)
{
+ int breakpoints_were_inserted;
+
/* Remove breakpoints, SOLIB_ADD might adjust
breakpoint addresses via breakpoint_re_set. */
+ breakpoints_were_inserted = breakpoints_inserted;
if (breakpoints_inserted)
remove_breakpoints ();
+ breakpoints_inserted = 0;
/* Check for any newly added shared libraries if we're
supposed to be adding them automatically. Switch
@@ -1328,17 +1333,50 @@ handle_inferior_event (struct execution_control_state *ecs)
exec/process stratum, instead relying on the target stack
to propagate relevant changes (stop, section table
changed, ...) up to other layers. */
+#ifdef SOLIB_ADD
SOLIB_ADD (NULL, 0, &current_target, auto_solib_add);
+#else
+ solib_add (NULL, 0, &current_target, auto_solib_add);
+#endif
target_terminal_inferior ();
+ /* Try to reenable shared library breakpoints, additional
+ code segments in shared libraries might be mapped in now. */
+ re_enable_breakpoints_in_shlibs ();
+
+ /* If requested, stop when the dynamic linker notifies
+ gdb of events. This allows the user to get control
+ and place breakpoints in initializer routines for
+ dynamically loaded objects (among other things). */
+ if (stop_on_solib_events)
+ {
+ stop_stepping (ecs);
+ return;
+ }
+
+ /* NOTE drow/2007-05-11: This might be a good place to check
+ for "catch load". */
+
/* Reinsert breakpoints and continue. */
- if (breakpoints_inserted)
- insert_breakpoints ();
+ if (breakpoints_were_inserted)
+ {
+ insert_breakpoints ();
+ breakpoints_inserted = 1;
+ }
}
-#endif
- resume (0, TARGET_SIGNAL_0);
- prepare_to_wait (ecs);
- return;
+
+ /* If we are skipping through a shell, or through shared library
+ loading that we aren't interested in, resume the program. If
+ we're running the program normally, also resume. But stop if
+ we're attaching or setting up a remote connection. */
+ if (stop_soon == STOP_QUIETLY || stop_soon == NO_STOP_QUIETLY)
+ {
+ resume (0, TARGET_SIGNAL_0);
+ prepare_to_wait (ecs);
+ return;
+ }
+
+ break;
case TARGET_WAITKIND_SPURIOUS:
if (debug_infrun)
@@ -1862,7 +1900,8 @@ handle_inferior_event (struct execution_control_state *ecs)
&& (stop_signal == TARGET_SIGNAL_ILL
|| stop_signal == TARGET_SIGNAL_SEGV
|| stop_signal == TARGET_SIGNAL_EMT))
- || stop_soon == STOP_QUIETLY || stop_soon == STOP_QUIETLY_NO_SIGSTOP)
+ || stop_soon == STOP_QUIETLY || stop_soon == STOP_QUIETLY_NO_SIGSTOP
+ || stop_soon == STOP_QUIETLY_REMOTE)
{
if (stop_signal == TARGET_SIGNAL_TRAP && stop_after_trap)
{
@@ -1875,7 +1914,7 @@ handle_inferior_event (struct execution_control_state *ecs)
/* This is originated from start_remote(), start_inferior() and
shared libraries hook functions. */
- if (stop_soon == STOP_QUIETLY)
+ if (stop_soon == STOP_QUIETLY || stop_soon == STOP_QUIETLY_REMOTE)
{
if (debug_infrun)
fprintf_unfiltered (gdb_stdlog, "infrun: quietly stopped\n");
@@ -3160,6 +3199,18 @@ Further execution is probably impossible.\n"));
switch (bpstat_ret)
{
case PRINT_UNKNOWN:
+ /* If we had hit a shared library event breakpoint,
+ bpstat_print would print out this message. If we hit
+ an OS-level shared library event, do the same
+ thing. */
+ if (last.kind == TARGET_WAITKIND_LOADED)
+ {
+ printf_filtered (_("Stopped due to shared library event\n"));
+ source_flag = SRC_LINE; /* something bogus */
+ do_frame_printing = 0;
+ break;
+ }
+
/* FIXME: cagney/2002-12-01: Given that a frame ID does
(or should) carry around the function and does (or
should) use that when doing a frame comparison. */