debug-in-ofile.exp   [plain text]

# Copyright 2005 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

if $tracelevel then {
        strace $tracelevel
        }

#
# This tests gdb's handling of debug information stored in .o files
# with -gdwarf-2.  Particularly the case where some of the .o files
# have been deleted.
#

set prms_id 0
set bug_id 0

set using_dsym 0
foreach x $board_variant_list {
    if {$x == ""} {
	continue
    }
    switch $x {
	dsym  {set using_dsym 1}
	default {}
    }
}

if {$using_dsym} {
    gdb_suppress_entire_file "This test doesn't work when forcing dsym testing"
    return 0
}

set test_name "debug-in-ofile"

set testfile "debug-in-ofile"

set binfile  "${objdir}/${subdir}/${testfile}"

set additional_flags additional_flags=-gdwarf-2


# Build all but four.c with dwarf.

foreach {src} {main one two three five six} {
    if  { [gdb_compile "$srcdir/$subdir/$src.c" "$objdir/$subdir/$src.o" object $additional_flags] != "" } {
	gdb_suppress_entire_file "Testcase compile failed for $test_name, so all tests in this file will automatically fail."
    }
    file delete -force $objdir/$subdir/$src.o.hidden
}

# Build four.c with stabs.
set src "four"
set additional_flags additional_flags=-gstabs+
if  { [gdb_compile "$srcdir/$subdir/$src.c" "$objdir/$subdir/$src.o" object $additional_flags] != "" } {
	gdb_suppress_entire_file "Testcase compile failed for $test_name, so all tests in this file will automatically fail."
}
file delete -force $objdir/$subdir/$src.o.hidden

set intermediate_obj $objdir/$subdir/dbg-in-ofile.o
file delete -force $intermediate_obj
file delete -force $intermediate_obj.hidden
set command "ld -r \"$objdir/$subdir/one.o\" \"$objdir/$subdir/three.o\" -o \"$intermediate_obj\""

set status [remote_exec  host $command]
if {[lindex $status 0] != 0} {
    puts [lindex $status 1]
    gdb_suppress_entire_file "Testcase ld -r failed for $test_name, so all tests in this file will automatically fail."
}

set intermediate_ar $objdir/$subdir/dbg-in-ofile.a
file delete -force $intermediate_ar
file delete -force $intermediate_ar.hidden
set command "ar -c -q \"$intermediate_ar\" \"$objdir/$subdir/two.o\" \"$objdir/$subdir/five.o\""

set status [remote_exec  host $command]
if {[lindex $status 0] != 0} {
    puts [lindex $status 1]
    gdb_suppress_entire_file "Testcase ld -r failed for $test_name, so all tests in this file will automatically fail."
}

set command "ranlib \"$intermediate_ar\""

set status [remote_exec  host $command]
if {[lindex $status 0] != 0} {
    puts [lindex $status 1]
    gdb_suppress_entire_file "Testcase ld -r failed for $test_name, so all tests in this file will automatically fail."
}

set additional_flags additional_flags=-gdwarf-2
if  { [gdb_compile "$objdir/$subdir/main.o $objdir/$subdir/four.o $intermediate_obj $intermediate_ar $objdir/$subdir/six.o" "${binfile}" executable $additional_flags] != "" } {
    gdb_suppress_entire_file "Testcase compile failed for $test_name, so all tests in this file will automatically fail."
}

# This sets breakpoints on the functions "my_one" through "six" and
# checks to make sure that the breakpoint type is the same as $pbt_ptr(function).
# Then it continues to each of the breakpoints, and makes sure we get there and
# can do a backtrace.

proc do_tests {title bpt_ptr} {
    global srcdir objdir subdir binfile gdb_prompt hex
    upvar $bpt_ptr expected_bpt

    # Start with a fresh gdb
    gdb_exit
    gdb_start
    gdb_reinitialize_dir $srcdir/$subdir
    gdb_file_cmd "${binfile}"
    
    send_gdb "set width 0\n"
    gdb_expect -re "$gdb_prompt $"
    runto_main

    foreach function {my_one my_two my_three my_four my_five my_six} {
	set breakpoints($function) [gdb_breakpoint_2 $function]
	if {[lindex $breakpoints($function) 0] eq [lindex $expected_bpt($function) 0]} {
	    pass "$title - Setting bpt at $function"
	} else {
	    fail "$title - Setting bpt at $function"
	}
    }

    foreach function {my_one my_two my_three my_four my_five my_six} {
	set type [lindex $breakpoints($function) 0] 
        switch $type {
	    line {gdb_continue $function}
	    address {gdb_test "continue" \
			 ".*Breakpoint [lindex $breakpoints($function) 1], $hex in $function \\\(\\\)" \
			 "$title: Continue to $function"}
	    error {}
	}
	# We aren't really checking the backtrace return, but we used to crash
	# when we backtrace, so I want to make sure we don't do that...
	gdb_test backtrace ".*" "$title: successful backtrace at $function"
    }
}


proc hide_file {args} {
    global objdir subdir
    foreach file $args {
	file rename $objdir/$subdir/$file $objdir/$subdir/$file.hidden
    }
}

proc reveal_file {args} {
    global objdir subdir
    foreach file $args {
	file rename $objdir/$subdir/$file.hidden $objdir/$subdir/$file
    }
}

# Okay, now we are going to remove some of the .o files

hide_file one.o six.o
array set expected_breakpoints {
    my_one   address
    my_two   line
    my_three line
    my_four  line
    my_five  line
    my_six   address
}
do_tests "missing one.o four.o" expected_breakpoints
reveal_file one.o six.o

hide_file dbg-in-ofile.a
array set expected_breakpoints {
    my_one   line
    my_two   address
    my_three line
    my_four  line
    my_five  address
    my_six   line
}
do_tests "missing .a file" expected_breakpoints
reveal_file dbg-in-ofile.a

# You have to hide the .o files as well, turns out
# since the debug info is not in the ld -r file, it
# really isn't used for debugging.

hide_file dbg-in-ofile.o one.o three.o
array set expected_breakpoints {
    my_one   address
    my_two   line
    my_three address
    my_four  line
    my_five  line
    my_six   line
}
do_tests "missing ld -r file" expected_breakpoints
reveal_file dbg-in-ofile.o one.o three.o

# Finally, build a dSYM file, and make sure we just ignore all the missing files.

set command "dsymutil $binfile"

set status [remote_exec  host $command]
if {[lindex $status 0] != 0} {
    puts [lindex $status 1]
    fail "Building dSYM file"
} else {
    pass "Building dSYM file"
    
    hide_file one.o six.o
    array set expected_breakpoints {
	my_one   line
	my_two   line
	my_three line
	my_four  line
	my_five  line
	my_six   line
    }
    do_tests "Using dSYM" expected_breakpoints
    reveal_file one.o six.o
    file delete -force $binfile.dSYM
}

return 0