gdb/

	* python/py-breakpoint.c (bppy_set_condition): New comment.
	* python/py-cmd.c (cmdpy_function): Call also gdbpy_print_stack for
	failed PyUnicode_Decode.
	(cmdpy_completer): Skip element for failed
	python_string_to_host_string.
	(cmdpy_init): Return -1 on failed python_string_to_host_string.
	* python/py-frame.c (frapy_read_var): Extend the function comment.
	* python/py-function.c (fnpy_init): Return -1 on failed
	python_string_to_host_string.
	* python/py-inferior.c (infpy_read_memory, infpy_write_memory): Extend
	the function comment.
	(infpy_search_memory): Extend the function comment.  Remove the
	PyErr_SetString call on already set error state.
	* python/py-param.c (set_parameter_value): Extend the function
	comment.  Return -1 on failed python_string_to_host_string, twice.
	(set_attr): Extend the function comment.
	(compute_enum_values): Extend the function comment.  New variable
	back_to.  Protect self->enumeration by BACK_TO cleanups.  Return 0 on
	failed python_string_to_host_string.
	(get_doc_string): Call gdbpy_print_stack on failed
	python_string_to_host_string.
	(parmpy_init): Extend the function comment.
	* python/py-prettyprint.c (pretty_print_one_value): Likewise.
	(gdbpy_get_display_hint, print_children): Call gdbpy_print_stack on
	failed python_string_to_host_string.
	* python/py-value.c (valpy_new, valpy_getitem, valpy_call)
	(valpy_binop, valpy_richcompare): Extend the function comment.
	* python/python.c
	(struct python_env) <error_type, error_value, error_traceback>: New
	fields.
	(restore_python_env): Handle PyErr_Occurred.  Call PyErr_Restore.
	(ensure_python_env): Call PyErr_Fetch.
	* varobj.c (update_dynamic_varobj_children): Call gdbpy_print_stack on
	failed convert_value_from_python.
	(value_get_print_value): Call gdbpy_print_stack on failed
	python_string_to_target_python_string.

gdb/testsuite/
	* gdb.python/py-error.exp: New file.
	* gdb.python/py-error.py: New file.

3 files changed, 86 insertions, 0 deletions

diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index f94b56b..bc3b2fc 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2010-10-13  Jan Kratochvil  <jan.kratochvil@redhat.com>
+
+	* gdb.python/py-error.exp: New file.
+	* gdb.python/py-error.py: New file.
+
 2010-10-12  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	* gdb.base/break-interp.exp (test_ld): Replace gdb_expect by
diff --git a/gdb/testsuite/gdb.python/py-error.exp b/gdb/testsuite/gdb.python/py-error.exp
new file mode 100644
index 0000000..a366fc3
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-error.exp
@@ -0,0 +1,56 @@
+# Copyright (C) 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/>.
+
+# Test error while loading *-gdb.py.  IBM1047 is chosen as possibly supported
+# by glibc but unsupported by Python
+
+set testfile "py-error"
+
+load_lib gdb-python.exp
+
+# Start with a fresh gdb.
+gdb_exit
+gdb_start
+
+# Skip all tests if Python scripting is not enabled.
+if { [skip_python_tests] } { continue }
+
+set charset "IBM1047"
+
+set test2 "main reached"
+
+set test "set host-charset $charset"
+set test_regex [string_to_regexp $test]
+gdb_test_multiple $test $test {
+    -re "^$test_regex\r\n$gdb_prompt $" {
+	pass $test
+    }
+    -re "^$test_regex\r\nUndefined item: \"$charset\"\\.\r\n$gdb_prompt $" {
+	xfail $test
+	untested $test2
+	set test2 ""
+    }
+}
+
+if {$test2 == ""} {
+    return 0
+}
+
+set remote_python_file [remote_download host ${srcdir}/${subdir}/${testfile}.py]
+
+# argc=LookupError: unknown encoding: IBM1047
+gdb_test "source $remote_python_file" "Traceback.*ClassName.*\r\nLookupError: unknown encoding: $charset" $test2
+
+gdb_test "p 1" " = 1" "no delayed error"
diff --git a/gdb/testsuite/gdb.python/py-error.py b/gdb/testsuite/gdb.python/py-error.py
new file mode 100644
index 0000000..9182a09
--- /dev/null
+++ b/gdb/testsuite/gdb.python/py-error.py
@@ -0,0 +1,25 @@
+# Copyright (C) 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/>.
+
+import gdb
+
+class ClassName(gdb.Command):
+    'a'
+    def __init__(self):
+        gdb.Command.__init__ (self, "ClassName", gdb.COMMAND_DATA, prefix=True)
+    def invoke(self, args, from_tty):
+        print
+
+ClassName()