gdb/

	Fix lost siginfo_t for inferior calls.
	* infrun.c
	(struct inferior_thread_state) <siginfo_gdbarch, siginfo_data>: New.
	(save_inferior_thread_state): New variables regcache, gdbarch and
	siginfo_data.  Initialize SIGINFO_DATA if gdbarch_get_siginfo_type_p.
	Move INF_STATE allocation later, pre-clear it.  Initialize REGISTERS
	using REGCACHE.
	(restore_inferior_thread_state): New variables regcache and gdbarch.
	Restore SIGINFO_DATA for matching GDBARCH.  Restore REGISTERS using
	REGCACHE.  Free also SIGINFO_DATA.

gdb/testsuite/
	Fix lost siginfo_t for inferior calls.
	* gdb.base/siginfo-infcall.exp: New file.
	* gdb.base/siginfo-infcall.c: New file.

3 files changed, 132 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index d2ec668..3ae8411 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2010-09-24  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	Fix lost siginfo_t for inferior calls.
+	* gdb.base/siginfo-infcall.exp: New file.
+	* gdb.base/siginfo-infcall.c: New file.
+
 2010-09-22  Joel Brobecker  <brobecker@adacore.com>
 
 	* gdb.dwarf2/dw2-const.S: Minor (space) reformatting.
diff --git a/gdb/testsuite/gdb.base/siginfo-infcall.c b/gdb/testsuite/gdb.base/siginfo-infcall.c
new file mode 100644
index 0000000..4215725
--- /dev/null
+++ b/gdb/testsuite/gdb.base/siginfo-infcall.c
@@ -0,0 +1,79 @@
+/* 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 <signal.h>
+#include <assert.h>
+#include <string.h>
+#include <unistd.h>
+
+#ifndef SA_SIGINFO
+# error "SA_SIGINFO is required for this test"
+#endif
+
+static int
+callme (void)
+{
+  return 42;
+}
+
+static int
+pass (void)
+{
+  return 1;
+}
+
+static int
+fail (void)
+{
+  return 1;
+}
+
+static void
+handler (int sig, siginfo_t *siginfo, void *context)
+{
+  assert (sig == SIGUSR1);
+  assert (siginfo->si_signo == SIGUSR1);
+  if (siginfo->si_pid == getpid ())
+    pass ();
+  else
+    fail ();
+}
+
+int
+main (void)
+{
+  struct sigaction sa;
+  int i;
+
+  callme ();
+
+  memset (&sa, 0, sizeof (sa));
+  sa.sa_sigaction = handler;
+  sa.sa_flags = SA_SIGINFO;
+
+  i = sigemptyset (&sa.sa_mask);
+  assert (i == 0);
+
+  i = sigaction (SIGUSR1, &sa, NULL);
+  assert (i == 0);
+
+  i = raise (SIGUSR1);
+  assert (i == 0);
+
+  sleep (600);
+  return 0;
+}
diff --git a/gdb/testsuite/gdb.base/siginfo-infcall.exp b/gdb/testsuite/gdb.base/siginfo-infcall.exp
new file mode 100644
index 0000000..a229345
--- /dev/null
+++ b/gdb/testsuite/gdb.base/siginfo-infcall.exp
@@ -0,0 +1,47 @@
+# 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/>.
+
+if [target_info exists gdb,nosignals] {
+    verbose "Skipping siginfo-infcall.exp because of nosignals."
+    continue
+}
+
+set testfile siginfo-infcall
+set srcfile ${testfile}.c
+set executable ${testfile}
+if { [prepare_for_testing ${testfile}.exp $executable] } {
+    return -1
+}
+
+if ![runto_main] {
+    return -1
+}
+
+gdb_breakpoint "pass"
+gdb_breakpoint "fail"
+
+gdb_test "continue" "Program received signal SIGUSR1, .*" "continue to SIGUSR1"
+
+gdb_test "p callme ()" " = 42"
+
+set test "continue to the handler"
+gdb_test_multiple "continue" $test {
+    -re "Breakpoint \[0-9\]+,\[^\r\n\]* pass .*\r\n$gdb_prompt $" {
+	pass $test
+    }
+    -re "Breakpoint \[0-9\]+,\[^\r\n\]* fail .*\r\n$gdb_prompt $" {
+	fail $test
+    }
+}