Files
binutils-gdb/gdb/testsuite/gdb.python/lotsa-lines.exp
Tom Tromey 72a8f76323 Change symbol::line to unsigned int
A user here at AdaCore noticed that, when debugging a certain program,
a stack frame reported line 34358, where it should have been line
99894.

After debugging a bit, I discovered:

(top) p (99894 & ~65536)
$60 = 34358

That line, symbol::line is too narrow.

This patch widens the member and changes all the uses that currently
use the narrower type.

Approved-By: Simon Marchi <simon.marchi@efficios.com>
2023-03-27 08:37:14 -06:00

52 lines
1.5 KiB
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# Copyright 2023 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 a very long file is ok.
load_lib gdb-python.exp
require allow_python_tests
standard_testfile .c
# Create a source file with many lines.
set c_file [standard_output_file $srcfile]
set chan [open $c_file w]
puts $chan "int callee (int x) { return x; }"
for {set i 2} {$i < 65538} {incr i} {
puts $chan "int call$i () { return callee ($i); }"
}
puts $chan "int main() { return call65537(); }"
close $chan
if {[prepare_for_testing "failed to prepare" ${testfile} \
[list $c_file] {debug}]} {
return
}
if {![runto callee]} {
return
}
gdb_test "print x" " = 65537"
# This doesn't actually demonstrate the bug, because it takes a code
# path not checking symbol::line.
gdb_test "frame 1" "call65537.*lotsa-lines.c:65537.*"
# This is the simplest way to see the problem.
gdb_test "python print(gdb.selected_frame().function().line)" "65537" \
"print function line number"