gdb/

	Revert:
	2010-10-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
		    Pedro Alves  <pedro@codesourcery.com>
	* gdbthread.h (currently_stepping): New declaration.
	* infrun.c (currently_stepping): Remove the forward declaration.
	(currently_stepping): Make it global.
	* linux-nat.c (resume_callback) <lp->stopped && lp->status == 0>: New
	variables tp and step, initialized them.  Pass STEP to to_resume.
	Print also possibly "PTRACE_SINGLESTEP" if STEP.  Initialize LP->STEP.
	* remote.c (currently_stepping_callback): New.
	(remote_vcont_resume)
	<ptid_equal (ptid, minus_one_ptid) || ptid_is_pid (ptid)>:
	New variable tp.  Call currently_stepping_callback and step such
	thread.

gdb/testsuite/
	Revert:
	2010-10-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
	* gdb.threads/sigstep-threads.exp: New file.
	* gdb.threads/sigstep-threads.c: New file.

3 files changed, 7 insertions, 128 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8c07761..c70d914 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2010-11-02  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	Revert:
+	2010-10-17  Jan Kratochvil  <jan.kratochvil@redhat.com>
+	* gdb.threads/sigstep-threads.exp: New file.
+	* gdb.threads/sigstep-threads.c: New file.
+
 2010-10-20  Michael Snyder  <msnyder@vmware.com>
 
 	* gdb.threads/fork-child-threads.exp: Don't run on remote target.
diff --git a/gdb/testsuite/gdb.threads/sigstep-threads.c b/gdb/testsuite/gdb.threads/sigstep-threads.c
deleted file mode 100644
index 7e04c32..0000000
--- a/gdb/testsuite/gdb.threads/sigstep-threads.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* This testcase is part of GDB, the GNU debugger.
-
-   Copyright 2010 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 3 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-
-#include <pthread.h>
-#include <assert.h>
-#include <signal.h>
-
-#include <asm/unistd.h>
-#include <unistd.h>
-#define tgkill(tgid, tid, sig) syscall (__NR_tgkill, (tgid), (tid), (sig))
-#define gettid() syscall (__NR_gettid)
-
-static volatile int var;
-
-static void
-handler (int signo)	/* step-0 */
-{			/* step-0 */
-  var++;		/* step-1 */
-  tgkill (getpid (), gettid (), SIGUSR1);	/* step-2 */
-}
-
-static void *
-start (void *arg)
-{
-  signal (SIGUSR1, handler);
-  tgkill (getpid (), gettid (), SIGUSR1);
-  assert (0);
-
-  return NULL;
-}
-
-int
-main (void)
-{
-  pthread_t thread;
-
-  pthread_create (&thread, NULL, start, NULL);
-  start (NULL);	/* main-start */
-  return 0;
-}
diff --git a/gdb/testsuite/gdb.threads/sigstep-threads.exp b/gdb/testsuite/gdb.threads/sigstep-threads.exp
deleted file mode 100644
index 5110706..0000000
--- a/gdb/testsuite/gdb.threads/sigstep-threads.exp
+++ /dev/null
@@ -1,74 +0,0 @@
-# Copyright 2010 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-set testfile sigstep-threads
-set srcfile ${testfile}.c
-set executable ${testfile}
-set binfile ${objdir}/${subdir}/${executable}
-
-if { [gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
-    untested ${testfile}.exp
-    return -1
-}
-
-clean_restart $executable
-
-if ![runto_main] {
-    return -1;
-}
-
-# `noprint' would not test the full logic of GDB.
-gdb_test "handle SIGUSR1 nostop print pass" "\r\nSIGUSR1\[ \t\]+No\[ \t\]+Yes\[ \t\]+Yes\[ \t\].*"
-
-gdb_test_no_output "set scheduler-locking off"
-
-gdb_breakpoint [gdb_get_line_number "step-1"]
-gdb_test_no_output {set $step1=$bpnum}
-gdb_continue_to_breakpoint "step-1" ".* step-1 .*"
-gdb_test_no_output {disable $step1}
-
-# 1 as we are now stopped at the `step-1' label.
-set step_at 1
-for {set i 0} {$i < 100} {incr i} {
-    set test "step $i"
-    # Presume this step failed - as in the case of a timeout.
-    set failed 1
-    gdb_test_multiple "step" $test {
-	-re "\r\nProgram received signal SIGUSR1, User defined signal 1.\r\n" {
-	    exp_continue -continue_timer
-	}
-	-re "step-(\[012\]).*\r\n$gdb_prompt $" {
-	    set now $expect_out(1,string)
-	    if {$step_at == 2 && $now == 1} {
-		set failed 0
-	    } elseif {$step_at == 1 && $now == 2} {
-		set failed 0
-		# Continue over the re-signalling back to the handle entry.
-		gdb_test_no_output {enable $step1} ""
-		gdb_test "continue" " step-1 .*" ""
-		set now 1
-		gdb_test_no_output {disable $step1} ""
-	    } else  {
-		fail $test
-	    }
-	    set step_at $now
-	}
-    }
-    if $failed {
-	return
-    }
-}
-# We can never reliably say the racy problematic case has been tested.
-pass "step"