diff options
| -rw-r--r-- | gdb/cli/cli-cmds.c | 2 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/list-nodebug.c | 21 | ||||
| -rw-r--r-- | gdb/testsuite/gdb.base/list-nodebug.exp | 37 |
3 files changed, 60 insertions, 0 deletions
diff --git a/gdb/cli/cli-cmds.c b/gdb/cli/cli-cmds.c index 8cadd63..cfe7b71 100644 --- a/gdb/cli/cli-cmds.c +++ b/gdb/cli/cli-cmds.c @@ -1291,6 +1291,8 @@ list_command (const char *arg, int from_tty) set_default_source_symtab_and_line (); cursal = get_current_source_symtab_and_line (); } + if (cursal.symtab == nullptr) + error (_("No debug information available to print source lines.")); list_around_line (arg, cursal); /* Set the repeat args so just pressing "enter" after using "list ." will print the following lines instead of the same lines again. */ diff --git a/gdb/testsuite/gdb.base/list-nodebug.c b/gdb/testsuite/gdb.base/list-nodebug.c new file mode 100644 index 0000000..078517c --- /dev/null +++ b/gdb/testsuite/gdb.base/list-nodebug.c @@ -0,0 +1,21 @@ +/* This testcase is part of GDB, the GNU debugger. + + Copyright 2024 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/>. */ + +int main () +{ + return 0; +} diff --git a/gdb/testsuite/gdb.base/list-nodebug.exp b/gdb/testsuite/gdb.base/list-nodebug.exp new file mode 100644 index 0000000..08de054 --- /dev/null +++ b/gdb/testsuite/gdb.base/list-nodebug.exp @@ -0,0 +1,37 @@ +# Copyright 2024 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 that using the command "list" in a file with no debug information +# will not crash GDB and will give reasonable output. + +standard_testfile .c + +if {[prepare_for_testing "failed to prepare" ${testfile} ${srcfile} \ + {nodebug}]} { + return -1 +} + +if {![runto_main]} { + untested "couldn't run to main" + return +} + +# Check that GDB doesn't crash when we use list . on an inferior with +# no debug information +gdb_test "list ." "No debug.*" "first 'list .'" +# This should be called twice because the first list invocation since +# printing a frame may take a different codepath, which wouldn't +# trigger the crash. +gdb_test "list ." "No debug.*" "second 'list .'" |