[pushed] Fix latent bug in tui_copy_source_line
Commit Message
The original change was created by Tom Tromey.
Change URL: https://gnutoolchain-gerrit.osci.io/r/c/binutils-gdb/+/683
......................................................................
Fix latent bug in tui_copy_source_line
tui_copy_source_line has a bug, where it can advance past the
terminating \0 in its input string. This patch fixes the bug and adds
a test case for this function.
gdb/ChangeLog
2019-12-01 Tom Tromey <tom@tromey.com>
* tui/tui-winsource.c (tui_copy_source_line): Don't advance past
\0.
* unittests/tui-selftests.c: New file.
* Makefile.in (SUBDIR_UNITTESTS_SRCS): Add tui-selftests.c.
Change-Id: I46cdabe6e57549983149b8f640cda5edd16fa260
---
M gdb/ChangeLog
M gdb/Makefile.in
M gdb/tui/tui-winsource.c
A gdb/unittests/tui-selftests.c
4 files changed, 58 insertions(+), 0 deletions(-)
@@ -1,5 +1,12 @@
2019-12-01 Tom Tromey <tom@tromey.com>
+ * tui/tui-winsource.c (tui_copy_source_line): Don't advance past
+ \0.
+ * unittests/tui-selftests.c: New file.
+ * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add tui-selftests.c.
+
+2019-12-01 Tom Tromey <tom@tromey.com>
+
* tui/tui.c (tui_enable): Call tui_update_variables earlier.
2019-12-01 Tom Tromey <tom@tromey.com>
@@ -442,6 +442,7 @@
unittests/string_view-selftests.c \
unittests/style-selftests.c \
unittests/tracepoint-selftests.c \
+ unittests/tui-selftests.c \
unittests/unpack-selftests.c \
unittests/utils-selftests.c \
unittests/vec-utils-selftests.c \
@@ -103,6 +103,8 @@
lineptr += skip_bytes;
continue;
}
+ if (c == '\0')
+ break;
++lineptr;
++column;
new file mode 100644
@@ -0,0 +1,48 @@
+/* Self tests for the TUI
+
+ Copyright (C) 2019 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ 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 "defs.h"
+#include "gdbsupport/selftest.h"
+#include "tui/tui-winsource.h"
+
+namespace selftests {
+namespace tui {
+
+static void
+run_tests ()
+{
+ const char *text = "hello";
+ std::string result = tui_copy_source_line (&text, 0, 0, 50, 0);
+ SELF_CHECK (result == "hello");
+ SELF_CHECK (*text == '\0');
+
+ text = "hello\n";
+ result = tui_copy_source_line (&text, 0, 0, 3, 0);
+ SELF_CHECK (result == "hel");
+ SELF_CHECK (*text == '\0');
+}
+
+} /* namespace tui*/
+} /* namespace selftests */
+
+void
+_initialize_tui_selftest ()
+{
+ selftests::register_test ("tui", selftests::tui::run_tests);
+}