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# Copyright 2013-2021 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/>.
# This testcase was originally for PR gdb/15415, a problem with the "run"
# command expanding symlinks in the name of the program being run.
# This test uses pathnames on build to create symbolic links on host and
# expects the test program running on target to see those symbolic links.
# Therefore, it can't work reliably on anything other than configurations
# where build/host/target are all the same.
if { ![isnative] } {
unsupported "argv0-symlink.exp not supported on non-native target"
return -1
}
if { [is_remote host] } {
unsupported "argv0-symlink.exp not supported on remote host"
return -1
}
standard_testfile
set has_argv0 [gdb_has_argv0]
if { [build_executable ${testfile}.exp ${testfile} ${srcfile}] == -1 } {
return -1
}
with_test_prefix "file symlink" {
set test "kept name"
set filelink "${testfile}-filelink"
remote_file host delete [standard_output_file $filelink]
set status [remote_exec host \
"ln -sf ${testfile} [standard_output_file $filelink]"]
if {[lindex $status 0] != 0} {
unsupported "$test (host does not support symbolic links)"
return 0
}
clean_restart "$filelink"
if ![runto_main] {
untested "could not run to main"
return -1
}
gdb_test_no_output "set print repeats 10000"
gdb_test_no_output "set print elements 10000"
if { $has_argv0 } {
gdb_test {print argv[0]} "/$filelink\"" $test
} else {
unsupported $test
}
# For a link named /PATH/TO/DIR/LINK, we want to check the output
# against "/DIR/LINK", but computed in a way that doesn't make
# assumptions about the test directory layout.
set full_filelink [standard_output_file $filelink]
set lastdir [file tail [file dirname $full_filelink]]
gdb_test "info inferiors" "/$lastdir/$filelink *" \
"$test for info inferiors"
}
with_test_prefix "dir symlink" {
set test "kept name"
set dirlink "${testfile}-dirlink"
# 'ln -sf' does not overwrite symbol link to a directory.
# 'remote_file host delete' uses stat (not lstat), therefore it refuses to
# delete a directory.
remote_exec host "rm -f [standard_output_file $dirlink]"
set status [remote_exec host "ln -sf . [standard_output_file $dirlink]"]
if {[lindex $status 0] != 0} {
unsupported "$test (host does not support symbolic links)"
return 0
}
clean_restart "$dirlink/$filelink"
if ![runto_main] {
untested "could not run to main"
return -1
}
gdb_test_no_output "set print repeats 10000"
gdb_test_no_output "set print elements 10000"
if { $has_argv0 } {
# gdbserver in extended-remote mode does not have this issue.
# Plain remote does, however.
if { [target_info gdb_protocol] != "extended-remote"
|| ![target_is_gdbserver] } {
setup_kfail "*-*-*" gdb/15934
}
gdb_test {print argv[0]} "/$dirlink/$filelink\"" $test
} else {
unsupported $test
}
gdb_test "info inferiors" "/$lastdir/$filelink *" \
"$test for info inferiors"
}
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