1# Copyright 2020 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16# Test that a backtrace is shown correctly for an objfile that uses partial 17# symtabs created by another objfile sharing the same BFD. 18# 19# It mimics how a bug with psymtab sharing was initially found: 20# 21# 1. Load the test file twice, such that the second objfile re-uses the 22# per_bfd object created for the first objfile. 23# 2. Run to some point where in the backtrace there is a frame for a 24# function that's in a CU that's not yet read in. 25# 3. Check that this frame's information is complete in the "backtrace" 26# output. 27 28standard_testfile .c share-psymtabs-bt-2.c 29 30if { [prepare_for_testing "failed to prepare" $testfile "$srcfile $srcfile2" \ 31 {debug}] } { 32 untested "failed to compile" 33 return -1 34} 35 36# Load $binfile a second time. The second created objfile will re-use the 37# partial symtabs created by the first one. 38if { [gdb_file_cmd $binfile] != 0 } { 39 fail "file command failed" 40 return -1 41} 42 43gdb_breakpoint "bar" 44if { ![runto "bar"] } { 45 fail "failed to run to bar" 46 return -1 47} 48 49# A buggy GDB would fail to find the full symbol associated to this frame's 50# address, so would just show "foo ()" (from the minimal symbol). 51gdb_test "bt" "foo \\(x=12345\\).*" 52