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# Copyright 2014-2020 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/>.
standard_testfile
# Take a list of directories DIRS, and return a regular expression
# that will match against the output of the 'directory' command
# assuming that DIRS are all of the directories that should appear in
# the results.
proc search_dir_list { dirs } {
set output "\r\nSource directories searched: "
append output [join $dirs "\[:;\]"]
return ${output}
}
# Check that adding directories to the search path changes the order
# in which directories are searched.
proc test_changing_search_directory {} {
gdb_start
set foo "/nOtExStInG"
gdb_test "directory $foo/a $foo/b $foo/c" \
[search_dir_list [list \
"$foo/a" \
"$foo/b" \
"$foo/c" \
"\\\$cdir" \
"\\\$cwd"]]
gdb_test "directory $foo/b $foo/d $foo/c" \
[search_dir_list [list \
"$foo/b" \
"$foo/d" \
"$foo/c" \
"$foo/a" \
"\\\$cdir" \
"\\\$cwd"]]
gdb_exit
}
# Test that the compilation directory can also be extended with a
# prefix from the directory search path in order to find source files.
proc test_truncated_comp_dir {} {
global srcfile srcdir subdir binfile
global decimal
# When we run this test the current directory will be something
# like this:
# /some/path/to/gdb/build/testsuite/
# We are going to copy the source file out of the source tree into
# a location like this:
# /some/path/to/gdb/build/testsuite/output/gdb.base/soure-dir/
#
# We will then switch to this directory and compile the source
# file, however, we will ask GCC to remove this prefix from the
# compilation directory in the debug info:
# /some/path/to/gdb/build/testsuite/output/
#
# As a result the debug information will look like this:
#
# DW_AT_name : source-dir.c
# DW_AT_comp_dir : /gdb.base/source-dir
#
# Finally we switch back to this directory:
# /some/path/to/gdb/build/testsuite/
#
# and start GDB. There was a time when GDB would be unable to
# find the source file no matter what we added to the directory
# search path, this should now be fixed.
set original_dir [pwd]
set working_dir [standard_output_file ""]
cd ${working_dir}
set strip_dir [file normalize "${working_dir}/../.."]
set new_srcfile [standard_output_file ${srcfile}]
set fd [open "$new_srcfile" w]
puts $fd "int
main ()
{
return 0;
}"
close $fd
set options \
"debug additional_flags=-fdebug-prefix-map=${strip_dir}="
if { [gdb_compile "${srcfile}" "${binfile}" \
executable ${options}] != "" } {
untested "failed to compile"
return -1
}
cd ${original_dir}
clean_restart ${binfile}
gdb_test_no_output "set directories \$cdir:\$cwd"
gdb_test "show directories" \
"\r\nSource directories searched: \\\$cdir\[:;\]\\\$cwd"
if ![runto_main] then {
fail "can't run to main"
return 0
}
gdb_test "info source" \
[multi_line \
"Current source file is ${srcfile}" \
"Compilation directory is \[^\n\r\]+" \
"Source language is c." \
"Producer is \[^\n\r\]+" \
"Compiled with DWARF $decimal debugging format." \
"Does not include preprocessor macro info." ] \
"info source before setting directory search list"
gdb_test "dir $strip_dir" \
[search_dir_list [list \
"$strip_dir" \
"\\\$cdir" \
"\\\$cwd"]] \
"setup source path search directory"
gdb_test "list" [multi_line \
"1\[ \t\]+int" \
"2\[ \t\]+main \\(\\)" \
"3\[ \t\]+\\{" \
"4\[ \t\]+return 0;" \
"5\[ \t\]+\\}" ]
gdb_test "info source" \
[multi_line \
"Current source file is ${srcfile}" \
"Compilation directory is \[^\n\r\]+" \
"Located in ${new_srcfile}" \
"Contains 5 lines." \
"Source language is c." \
"Producer is \[^\n\r\]+" \
"\[^\n\r\]+" \
"\[^\n\r\]+" ] \
"info source after setting directory search list"
}
test_changing_search_directory
test_truncated_comp_dir
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