path: root/gdb/testsuite/gdb.base/sepdebug.exp

#   Copyright 1988-2016 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/>.

# Based on break.exp, written by Rob Savoye. (rob@cygnus.com)
# Modified to test gdb's handling of separate debug info files.
# Modified to test gdb's handling of a debug-id retrieval.

# This file has two parts. The first is testing that gdb behaves
# normally after reading in an executable and its corresponding
# separate debug file. The second moves the .debug file to a different
# location and tests the "set debug-file-directory" command.
# The third is for testing build-id retrievel by finding the separate
# ".debug-id/ab/cdef.debug" file.


#
# test running programs
#

standard_testfile .c

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug nowarnings}] != "" } {
    untested sepdebug.exp
    return -1
}

# Note: the procedure gdb_gnu_strip_debug will produce an executable called
# ${binfile}, which is just like the executable ($binfile) but without
# the debuginfo. Instead $binfile has a .gnu_debuglink section which contains
# the name of a debuginfo only file. This file will be stored in the
# gdb.base/ subdirectory.

if [gdb_gnu_strip_debug $binfile$EXEEXT] {
    # check that you have a recent version of strip and objcopy installed
    unsupported "cannot produce separate debug info files"
    return -1
}

#
# PR gdb/9538.  Verify that symlinked executable still finds the separate
# debuginfo.
#
set old_subdir $subdir
set subdir [file join ${old_subdir} pr9538]

# Cleanup any stale state.
set new_name [standard_output_file ${testfile}${EXEEXT}]
remote_exec build "rm -rf [file dirname $new_name]"

remote_exec build "mkdir [file dirname $new_name]"
remote_exec build "ln -s ${binfile}${EXEEXT} $new_name"
clean_restart ${testfile}${EXEEXT}
if { $gdb_file_cmd_debug_info != "debug" } then {
    fail "No debug information found."
}

# Restore subdir
set subdir ${old_subdir}

clean_restart ${testfile}${EXEEXT}
if { $gdb_file_cmd_debug_info != "debug" } then {
    fail "No debug information found."
}

#
# test simple breakpoint setting commands
#

#
# test break at function
#
gdb_test "break main" \
    "Breakpoint.*at.* file .*$srcfile, line.*" \
    "breakpoint function"

#
# test break at quoted function
#
gdb_test "break \"marker2\"" \
    "Breakpoint.*at.* file .*$srcfile, line.*" \
    "breakpoint quoted function"

#
# test break at function in file
#
gdb_test "break $srcfile:factorial" \
    "Breakpoint.*at.* file .*$srcfile, line.*" \
    "breakpoint function in file"

set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]

#
# test break at line number
#
# Note that the default source file is the last one whose source text
# was printed.  For native debugging, before we've executed the
# program, this is the file containing main, but for remote debugging,
# it's wherever the processor was stopped when we connected to the
# board.  So, to be sure, we do a list command.
#
gdb_test "list main" \
    ".*main \\(int argc, char \\*\\*argv, char \\*\\*envp\\).*" \
    "use `list' to establish default source file"
gdb_test "break $bp_location1" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location1\\." \
    "breakpoint line number"

#
# test duplicate breakpoint
#
gdb_test "break $bp_location1" \
    "Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line $bp_location1\\." \
    "breakpoint duplicate"

set bp_location2 [gdb_get_line_number "set breakpoint 2 here"]

#
# test break at line number in file
#
gdb_test "break $srcfile:$bp_location2" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location2\\." \
    "breakpoint line number in file"

set bp_location3 [gdb_get_line_number "set breakpoint 3 here"]
set bp_location4 [gdb_get_line_number "set breakpoint 4 here"]

#
# Test putting a break at the start of a multi-line if conditional.
# Verify the breakpoint was put at the start of the conditional.
#
gdb_test "break multi_line_if_conditional" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location3\\." \
    "breakpoint at start of multi line if conditional"

gdb_test "break multi_line_while_conditional" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location4\\." \
    "breakpoint at start of multi line while conditional"

set bp_location6 [gdb_get_line_number "set breakpoint 6 here"]

set main_line $bp_location6

set bp_location7 [gdb_get_line_number "set breakpoint 7 here"]
set bp_location8 [gdb_get_line_number "set breakpoint 8 here"]

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$main_line.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in marker2 at .*$srcfile:$bp_location8.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in factorial at .*$srcfile:$bp_location7.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$bp_location2.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_if_conditional at .*$srcfile:$bp_location3.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in multi_line_while_conditional at .*$srcfile:$bp_location4" \
    "breakpoint info"

# FIXME: The rest of this test doesn't work with anything that can't
# handle arguments.
# Huh? There doesn't *appear* to be anything that passes arguments
# below.

#
# run until the breakpoint at main is hit. For non-stubs-using targets.
#
gdb_run_cmd
gdb_test "" \
    "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*" \
    "run until function breakpoint"

#
# run until the breakpoint at a line number
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location1.*$bp_location1\[\t \]+printf.*factorial.*" \
			"run until breakpoint set at a line number"

#
# Run until the breakpoint set in a function in a file
#
for {set i 6} {$i >= 1} {incr i -1} {
	gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:$bp_location7.*$bp_location7\[\t \]+.*if .value > 1. \{.*" \
			"run until file:function($i) breakpoint"
}

#
# Run until the breakpoint set at a quoted function
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, (0x\[0-9a-f\]+ in )?marker2 \\(a=43\\) at .*$srcfile:$bp_location8.*" \
		"run until quoted breakpoint"
#
# run until the file:function breakpoint at a line number in a file
#
gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location2.*$bp_location2\[\t \]+argc = \\(argc == 12345\\);.*" \
		"run until file:linenum breakpoint"

# Test break at offset +1
set bp_location10 [gdb_get_line_number "set breakpoint 10 here"]

gdb_test "break +1" \
    "Breakpoint.*at.* file .*$srcfile, line $bp_location10\\." \
    "breakpoint offset +1"

# Check to see if breakpoint is hit when stepped onto

gdb_test "step" \
    ".*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:$bp_location10.*$bp_location10\[\t \]+return argc;.*breakpoint 10 here.*" \
    "step onto breakpoint"

#
# delete all breakpoints so we can start over, course this can be a test too
#
delete_breakpoints

#
# test temporary breakpoint at function
#

gdb_test "tbreak main" "Temporary breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"

#
# test break at function in file
#

gdb_test "tbreak $srcfile:factorial" "Temporary breakpoint.*at.* file .*$srcfile, line.*" \
	"Temporary breakpoint function in file"

#
# test break at line number
#

gdb_test "tbreak $bp_location1" \
    "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location1.*" \
    "Temporary breakpoint line number #1"

gdb_test "tbreak $bp_location6" \
    "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location6.*" \
    "Temporary breakpoint line number #2"

#
# test break at line number in file
#

gdb_test "tbreak $srcfile:$bp_location2" \
    "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location2.*" \
    "Temporary breakpoint line number in file #1"

set bp_location11 [gdb_get_line_number "set breakpoint 11 here"]
gdb_test  "tbreak $srcfile:$bp_location11" "Temporary breakpoint.*at.* file .*$srcfile, line $bp_location11.*" "Temporary breakpoint line number in file #2"

#
# check to see what breakpoints are set (temporary this time)
#
gdb_test "info break" "Num     Type.*Disp Enb Address.*What.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in factorial at .*$srcfile:$bp_location7.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location1.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location6.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location2.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint     del.*y.*in main at .*$srcfile:$bp_location11.*" \
    "Temporary breakpoint info"


#***********

# Verify that catchpoints for fork, vfork and exec don't trigger
# inappropriately.  (There are no calls to those system functions
# in this test program.)
#
if ![runto_main] then { fail "sepdebug tests suppressed" }

gdb_test "catch" "Catch requires an event name.*" \
    "catch requires an event name"

gdb_test "catch fork" "Catchpoint \[0-9\]+ \\(fork\\)" \
    "set catch fork, never expected to trigger"

gdb_test "catch vfork" "Catchpoint \[0-9\]+ \\(vfork\\)" \
    "set catch vfork, never expected to trigger"

gdb_test "catch exec" "Catchpoint \[0-9\]+ \\(exec\\)" \
    "set catch exec, never expected to trigger"

# Verify that GDB responds gracefully when asked to set a breakpoint
# on a nonexistent source line.
#

gdb_test_no_output "set breakpoint pending off"
gdb_test "break 999" "No line 999 in the current file." \
    "break on non-existent source line"

# Run to the desired default location. If not positioned here, the
# tests below don't work.
#
gdb_test "until $bp_location1" "main .* at .*:$bp_location1.*" "until bp_location1"


# Verify that GDB allows one to just say "break", which is treated
# as the "default" breakpoint.  Note that GDB gets cute when printing
# the informational message about other breakpoints at the same
# location.  We'll hit that bird with this stone too.
#

gdb_test "break" "Breakpoint \[0-9\]*.*" \
    "break on default location, 1st time"

gdb_test "break" \
    "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
    "break on default location, 2nd time"

gdb_test "break" \
    "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
    "break on default location, 3rd time"

gdb_test "break" \
    "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*" \
    "break on default location, 4th time"

# Verify that a "silent" breakpoint can be set, and that GDB is indeed
# "silent" about its triggering.
#
if ![runto_main] then { fail "sepdebug tests suppressed" }

gdb_test_multiple "break $bp_location1" \
    "set to-be-silent break bp_location1" {
	-re "Breakpoint (\[0-9\]*) at .*, line $bp_location1.*$gdb_prompt $" {
	    pass "set to-be-silent break bp_location1"
	}
}

gdb_test "commands $expect_out(1,string)\nsilent\nend" ">end" "set silent break bp_location1"

gdb_test "info break $expect_out(1,string)" \
    "\[0-9\]*\[ \t\]*breakpoint.*:$bp_location1\r\n\[ \t\]*silent.*" \
    "info silent break bp_location1"

gdb_test "continue" "Continuing.*" "hit silent break bp_location1"

gdb_test "bt" "#0  main .* at .*:$bp_location1.*" \
    "stopped for silent break bp_location1"

# Verify that GDB can at least parse a breakpoint with the
# "thread" keyword.  (We won't attempt to test here that a
# thread-specific breakpoint really triggers appropriately.
# The gdb.threads subdirectory contains tests for that.)
#
set bp_location12 [gdb_get_line_number "set breakpoint 12 here"]

gdb_test "break $bp_location12 thread 999" "Unknown thread 999.*" \
    "thread-specific breakpoint on non-existent thread disallowed"

gdb_test "break $bp_location12 thread foo" \
    "Junk after thread keyword.*" \
    "thread-specific breakpoint on bogus thread ID disallowed"

# Verify that GDB responds gracefully to a breakpoint command with
# trailing garbage.
#

gdb_test "break $bp_location12 foo" \
    "malformed linespec error: unexpected string, \"foo\".*" \
    "breakpoint with trailing garbage disallowed"

# Verify that GDB responds gracefully to a "clear" command that has
# no matching breakpoint.  (First, get us off the current source line,
# which we know has a breakpoint.)
#

gdb_test "next" "marker1.*" "step over breakpoint"

gdb_test "clear 81" "No breakpoint at 81.*" \
    "clear line has no breakpoint disallowed"

gdb_test "clear" "No breakpoint at this line.*" \
    "clear current line has no breakpoint disallowed"

# Verify that we can set and clear multiple breakpoints.
#
# We don't test that it deletes the correct breakpoints.  We do at
# least test that it deletes more than one breakpoint.
#
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #1"
gdb_test "break marker3" "Breakpoint.*at.*" "break marker3 #2"
gdb_test "clear marker3" {Deleted breakpoints [0-9]+ [0-9]+.*}

# Verify that a breakpoint can be set via a convenience variable.
#

gdb_test_no_output "set \$foo=$bp_location11" \
    "set convenience variable \$foo to bp_location11"

gdb_test "break \$foo" \
    "Breakpoint (\[0-9\]*) at .*, line $bp_location11.*" \
    "set breakpoint via convenience variable"

# Verify that GDB responds gracefully to an attempt to set a
# breakpoint via a convenience variable whose type is not integer.
#

gdb_test_no_output "set \$foo=81.5" \
    "set convenience variable \$foo to 81.5"

gdb_test "break \$foo" \
    "Convenience variables used in line specs must have integer values.*" \
    "set breakpoint via non-integer convenience variable disallowed"

# Verify that we can set and trigger a breakpoint in a user-called function.
#

gdb_test "break marker2" \
    "Breakpoint (\[0-9\]*) at .*, line $bp_location8.*" \
    "set breakpoint on to-be-called function"

gdb_test "print marker2(99)" \
    "The program being debugged stopped while in a function called from GDB.\r\nEvaluation of the expression containing the function\r\n.marker2. will be abandoned.\r\nWhen the function is done executing, GDB will silently stop.*" \
    "hit breakpoint on called function"

# As long as we're stopped (breakpointed) in a called function,
# verify that we can successfully backtrace & such from here.

gdb_test "bt" \
    "#0\[ \t\]*($hex in )?marker2.*:$bp_location8\r\n#1\[ \t\]*<function called from gdb>.*" \
    "backtrace while in called function"

# Return from the called function.  For remote targets, it's important to do
# this before runto_main, which otherwise may silently stop on the dummy
# breakpoint inserted by GDB at the program's entry point.
#

gdb_test_multiple "finish" "finish from called function" {
    -re "Run till exit from .*marker2.* at .*$bp_location8\r\n.*function called from gdb.*$gdb_prompt $" {
	pass "finish from called function"
    }
    -re "Run till exit from .*marker2.* at .*$bp_location8\r\n.*Value returned.*$gdb_prompt $" {
	pass "finish from called function"
    }
}

# Verify that GDB responds gracefully to a "finish" command with
# arguments.
#
if ![runto_main] then { fail "sepdebug tests suppressed" }

gdb_test "finish 123" \
    "The \"finish\" command does not take any arguments.*" \
    "finish with arguments disallowed"

# Verify that GDB responds gracefully to a request to "finish" from
# the outermost frame.  On a stub that never exits, this will just
# run to the stubs routine, so we don't get this error...  Thus the 
# second condition.
#

gdb_test_multiple "finish" "finish from outermost frame disallowed" {
    -re "\"finish\" not meaningful in the outermost frame.*$gdb_prompt $" {
	pass "finish from outermost frame disallowed"
    }
    -re "Run till exit from.*$gdb_prompt $" {
	pass "finish from outermost frame disallowed"
    }
}

#
# Test "next" over recursive function call.
#

proc test_next_with_recursion {} { 
    global gdb_prompt
    global decimal
    global binfile

    gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
    delete_breakpoints

    gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"

    # Run until we call factorial with 6

    gdb_run_cmd
    gdb_test "" "Break.* factorial .value=6. .*" "run to factorial(6)"

    # Continue until we call factorial recursively with 5.

    if [gdb_test "continue" \
	"Continuing.*Break.* factorial .value=5. .*" \
	"continue to factorial(5)"] then { gdb_suppress_tests }

    # Do a backtrace just to confirm how many levels deep we are.

    if [gdb_test "backtrace" \
	"#0\[ \t\]+ factorial .value=5..*" \
	"backtrace from factorial(5)"] then { gdb_suppress_tests }

    # Now a "next" should position us at the recursive call, which
    # we will be performing with 4.

    if [gdb_test "next" \
	".* factorial .value - 1.;.*" \
	"next to recursive call"] then { gdb_suppress_tests }

    # Disable the breakpoint at the entry to factorial by deleting them all.
    # The "next" should run until we return to the next line from this
    # recursive call to factorial with 4.
    # Buggy versions of gdb will stop instead at the innermost frame on
    # the line where we are trying to "next" to.

    delete_breakpoints

    if [istarget "mips*tx39-*"] {
	set timeout 60
    }
    # We used to set timeout here for all other targets as well.  This
    # is almost certainly wrong.  The proper timeout depends on the
    # target system in use, and how we communicate with it, so there
    # is no single value appropriate for all targets.  The timeout
    # should be established by the Dejagnu config file(s) for the
    # board, and respected by the test suite.
    #
    # For example, if I'm running GDB over an SSH tunnel talking to a
    # portmaster in California talking to an ancient 68k board running
    # a crummy ROM monitor (a situation I can only wish were
    # hypothetical), then I need a large timeout.  But that's not the
    # kind of knowledge that belongs in this file.

    gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
	    "next over recursive call"

    # OK, we should be back in the same stack frame we started from.
    # Do a backtrace just to confirm.

    set result [gdb_test "backtrace" \
	    "#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
	    "backtrace from factorial(5.1)"]
    if { $result != 0 } { gdb_suppress_tests }

    if [target_info exists gdb,noresults] { gdb_suppress_tests }
  gdb_continue_to_end "recursive next test"
   gdb_stop_suppressing_tests
}

test_next_with_recursion


#********

proc test_different_dir {type test_different_dir xfail} {
    with_test_prefix "$type" {
	global srcdir subdir binfile srcfile timeout gdb_prompt
	global bp_location6 decimal hex

	gdb_exit
	gdb_start
	gdb_reinitialize_dir $srcdir/$subdir
	gdb_test_no_output "set debug-file-directory ${test_different_dir}" \
	    "set separate debug location"
	gdb_load ${binfile}

	#
	# test break at function
	#
	if {$xfail} {
	    setup_xfail "*-*-*"
	}
	gdb_test "break main" \
	    "Breakpoint.*at.* file .*$srcfile, line.*" \
	    "breakpoint function, optimized file"

	#
	# test break at function
	#
	if {$xfail} {
	    setup_xfail "*-*-*"
	}
	gdb_test "break marker4" \
	    "Breakpoint.*at.* file .*$srcfile, line.*" \
	    "breakpoint small function, optimized file"

	#
	# run until the breakpoint at main is hit. For non-stubs-using targets.
	#
	gdb_run_cmd
	if {$xfail} {
	    setup_xfail "*-*-*"
	}
	set test "run until function breakpoint, optimized file"
	gdb_test_multiple "" $test {
	    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:$bp_location6.*$bp_location6\[\t \]+if .argc.* \{.*$gdb_prompt $" {
		pass $test
	    }
	    -re "Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$gdb_prompt $" {
		pass "$test (code motion)"
	    }
	}

	#
	# run until the breakpoint at a small function
	#

	#
	# Add a second pass pattern.  The behavior differs here between stabs
	# and dwarf for one-line functions.  Stabs preserves two line symbols
	# (one before the prologue and one after) with the same line number, 
	# but dwarf regards these as duplicates and discards one of them.
	# Therefore the address after the prologue (where the breakpoint is)
	# has no exactly matching line symbol, and GDB reports the breakpoint
	# as if it were in the middle of a line rather than at the beginning.

	set bp_location14 [gdb_get_line_number "set breakpoint 14 here"]
	if {$xfail} {
	    setup_xfail "*-*-*"
	}

	gdb_test_multiple "continue" "run until breakpoint set at small function, optimized file" {
	    -re "Breakpoint $decimal, marker4 \\(d=177601976\\) at .*$srcfile:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*$gdb_prompt $" {
		pass "run until breakpoint set at small function, optimized file (line bp_location14)"
	    }
	    -re "Breakpoint $decimal, $hex in marker4 \\(d=177601976\\) at .*$srcfile:$bp_location14\[\r\n\]+$bp_location14\[\t \]+void marker4.*$gdb_prompt $" {
		pass "run until breakpoint set at small function, optimized file (line bp_location14)"
	    }
	}

	# proc test_different_dir
    }
}


# now move the .debug file to a different location so that we can test
# the "set debug-file-directory" command.

set different_dir [standard_output_file ${testfile}.dir]
set debugfile "${different_dir}/[standard_output_file ${testfile}${EXEEXT}.debug]"
remote_exec build "rm -rf $different_dir"
remote_exec build "mkdir -p [file dirname $debugfile]"
remote_exec build "mv -f [standard_output_file ${testfile}${EXEEXT}.debug] $debugfile"

test_different_dir debuglink $different_dir 0


# Test CRC mismatch is reported.

if {[build_executable sepdebug.exp sepdebug2 sepdebug2.c debug] != -1
    && ![gdb_gnu_strip_debug [standard_output_file sepdebug2]$EXEEXT]} {

    remote_exec build "cp ${debugfile} [standard_output_file sepdebug2.debug]"

    gdb_exit
    gdb_start
    gdb_reinitialize_dir $srcdir/$subdir

    set escapedobjdirsubdir [string_to_regexp [standard_output_file {}]]

    gdb_test "file [standard_output_file sepdebug2]" "warning: the debug information found in \"${escapedobjdirsubdir}/sepdebug2\\.debug\" does not match \"${escapedobjdirsubdir}/sepdebug2\" \\(CRC mismatch\\)\\..*\\(no debugging symbols found\\).*" "CRC mismatch is reported"
}


# NT_GNU_BUILD_ID / .note.gnu.build-id test:

set build_id_debug_filename [build_id_debug_filename_get $binfile$EXEEXT]
if ![string compare $build_id_debug_filename ""] then {
    unsupported "build-id is not supported by the compiler"

    # Spare debug files may confuse testsuite runs in the future.
    remote_exec build "rm -f $debugfile"
} else {
    set build_id_debugself_filename [build_id_debug_filename_get $debugfile]
    set test "build-id support by binutils"
    set xfail 0
    if ![string compare $build_id_debugself_filename ""] then {
	unsupported $test
	set xfail 1
    } elseif {[string compare $build_id_debugself_filename $build_id_debug_filename] != 0} then {
	fail $test
    } else {
	pass $test
    }

    file mkdir [file dirname [standard_output_file ${build_id_debug_filename}]]
    remote_exec build "mv $debugfile [standard_output_file ${build_id_debug_filename}]"

    test_different_dir build-id [standard_output_file {}] $xfail

    # Test also multiple directories can be specified.  Without the build-id
    # reference GDB would find the separate debug info just at the same
    # location as the executable file.

    test_different_dir multiple-dirs "/doesnotexist:[standard_output_file {}]" $xfail

    # Spare debug files may confuse testsuite runs in the future.
    remote_exec build "rm -f [standard_output_file ${build_id_debug_filename}]"
}