# Copyright 2012-2021 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/>.

load_lib mi-support.exp
set MIFLAGS "-i=mi"

gdb_exit
if [mi_gdb_start] {
    continue
}

standard_testfile
set srcfileabs [standard_output_file $srcfile]

# Double the final slash separator in $srcfileabs, such that
# "/path/to/$srcfile" becomes "/path/to//$srcfile".  This is
# passed as the "source" argument of gdb_compile, which, when
# using GCC (as of 10.2) will result in the doubled slash
# being incorporated into the built executable's debug info.
# This is then used to check compare_filenames_for_search does
# not falsely use an absolute filename as a relative one.
# Note that Clang (as of 12.0.0) normalizes the path before
# storing it in the executable's debug info, removing the double
# slash.  This nullifies the "compare_filenames_for_search does
# not match" test when using Clang (it can never fail).
if { [regsub {/[^/]+$} $srcfileabs {/\0} srcfileabs] != 1 } {
    xfail "cannot double the last slash separator"
    return -1
}

if { [regsub {^(/[^/]+)/} $srcfileabs {\1subst/} srcfileabssubst] != 1
     || [regsub {^(/[^/]+)/.*$} $srcfileabs {\1} initdir] != 1 } {
    xfail "missing root subdirectory"
    return -1
}

# Generate a regular expression which to match $srcfileabs with
# or without the doubled slash.  This is used by the substituted
# fullname test.
set srcfileabssubst_regexp [string_to_regexp $srcfileabssubst]
regsub {//} $srcfileabssubst_regexp {\0?} srcfileabssubst_regexp

set f [open $srcfileabs "w"]
puts $f "int main (void) { return 0; }"
close $f

if { [gdb_compile "$srcfileabs" "${binfile}" executable {debug}] != "" } {
    untested "failed to compile"
    return -1
}

file delete -- $srcfileabs

mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}

mi_gdb_test "-interpreter-exec console \"set substitute-path ${initdir} ${initdir}subst\"" {\^done} "set substitute-path"

mi_gdb_test "-file-list-exec-source-file" ".*\",fullname=\".*\".*" "fullname present"

mi_gdb_test "-file-list-exec-source-file" ".*\",fullname=\"$srcfileabssubst_regexp\".*" "substituted fullname"

# Test compare_filenames_for_search does not falsely use absolute
# filename as a relative one.  Note that this test can falsely pass
# with Clang, and possibly other compilers too; see the comment
# above for more.
mi_gdb_test "-break-insert -t /$srcfile:main" \
	    "\\^error,msg=\"No source file named /[string_to_regexp $srcfile]\\.\"" \
	    "compare_filenames_for_search does not match"
mi_gdb_test "-break-insert -t $srcfile:main" \
	    {\^done,bkpt=.*} \
	    "compare_filenames_for_search does match"