path: root/ld/testsuite/ld-elfweak/elfweak.exp

# Expect script for ld-weak tests
#   Copyright 2001 Free Software Foundation, Inc.
#
# This file 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.
#
# Written by H.J. Lu (hjl@gnu.org)
#	     Eric Youngdale (eric@andante.jic.com)
#

# This test can only be run if ld generates native executables.
if ![isnative] then {return}

# This test can only be run on a couple of ELF platforms.
# Square bracket expressions seem to confuse istarget.
# This is similar to the test that is used in ld-shared, BTW.
if { ![istarget i?86-*-sysv4*] \
     && ![istarget i?86-*-unixware] \
     && ![istarget i?86-*-elf*] \
     && ![istarget i?86-*-linux*] \
     && ![istarget ia64-*-elf*] \
     && ![istarget ia64-*-linux*] \
     && ![istarget m68k-*-linux*] \
     && ![istarget mips*-*-irix5*] \
     && ![istarget powerpc-*-elf*] \
     && ![istarget powerpc-*-linux*] \
     && ![istarget powerpc-*-sysv4*] \
     && ![istarget sparc*-*-elf] \
     && ![istarget sparc*-*-solaris2*] \
     && ![istarget sparc*-*-linux*] \
     && ![istarget arm*-*-linux*] \
     && ![istarget mips*-*-linux*] \
     && ![istarget alpha*-*-linux*] } {
    return
}

if { [istarget i?86-*-linux*aout*] \
     || [istarget i?86-*-linux*oldld*] \
     || [istarget m68k-*-linux*aout*] } {
    return
}

if { [istarget rs6000*-*-aix*] || [istarget powerpc*-*-aix*] } {
    return
}

set diff diff
set tmpdir tmpdir
set DOBJDUMP_FLAGS --dynamic-syms
set SOBJDUMP_FLAGS --syms
set shared --shared

#
# objdump_symstuff
#	Dump non-dynamic symbol stuff and make sure that it is sane.
#
proc objdump_symstuff { objdump object expectfile } {
    global SOBJDUMP_FLAGS
    global version_output
    global diff
    global tmpdir

    if ![info exists SOBJDUMP_FLAGS] { set SOBJDUMP_FLAGS "" }

    verbose -log "$objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out"

    catch "exec $objdump $SOBJDUMP_FLAGS $object | grep foo$  > $tmpdir/objdump.out" exec_output
    set exec_output [prune_warnings $exec_output]
    if [string match "" $exec_output] then {

# Now do a line-by-line comparison to effectively diff the darned things
# The stuff coming from the expectfile is actually a regex, so we can
# skip over the actual addresses and so forth.  This is currently very
# simpleminded - it expects a one-to-one correspondence in terms of line
# numbers.

	if [file exists $expectfile] then {
	    set file_a [open $expectfile r]
	} else {
	    perror "$expectfile doesn't exist"
	    return 0
	}
	
	if [file exists $tmpdir/objdump.out] then {
	    set file_b [open $tmpdir/objdump.out r]
	} else {
	    perror "$tmpdir/objdump.out doesn't exist"
	    return 0
	}

	verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2

	set eof -1
	set differences 0

	while { [gets $file_a line] != $eof } {
	    if [regexp "^#.*$" $line] then {
		continue
	    } else {
		lappend list_a $line
	    }
	}
	close $file_a

	while { [gets $file_b line] != $eof } {
	    if [regexp "^#.*$" $line] then {
		continue
	    } else {
		lappend list_b $line
	    }
	}
	close $file_b
	
	for { set i 0 } { $i < [llength $list_a] } { incr i } {
	    set line_a [lindex $list_a $i]
	    set line_b [lindex $list_b $i]
	    

	    verbose "\t$expectfile: $i: $line_a" 3
	    verbose "\t/tmp/objdump.out: $i: $line_b" 3
	    if [regexp $line_a $line_b] then {
		continue
	    } else {
		verbose -log "\t$expectfile: $i: $line_a"
		verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
		
		return 0
	    }
	}
	
	if { [llength $list_a] != [llength $list_b] } {
	    verbose -log "Line count"
	    return 0
	}
	
	if $differences<1 then {
	    return 1
	}
	
	return 0
    } else {
	verbose -log "$exec_output"
	return 0
    }

}

#
# objdump_dymsymstuff
#	Dump dynamic symbol stuff and make sure that it is sane.
#
proc objdump_dynsymstuff { objdump object expectfile } {
    global DOBJDUMP_FLAGS
    global version_output
    global diff
    global tmpdir

    if ![info exists DOBJDUMP_FLAGS] { set DOBJDUMP_FLAGS "" }

    verbose -log "$objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out"

    catch "exec $objdump $DOBJDUMP_FLAGS $object | grep foo$ > $tmpdir/objdump.out" exec_output
    set exec_output [prune_warnings $exec_output]
    if [string match "" $exec_output] then {

# Now do a line-by-line comparison to effectively diff the darned things
# The stuff coming from the expectfile is actually a regex, so we can
# skip over the actual addresses and so forth.  This is currently very
# simpleminded - it expects a one-to-one correspondence in terms of line
# numbers.

	if [file exists $expectfile] then {
	    set file_a [open $expectfile r]
	} else {
	    warning "$expectfile doesn't exist"
	    return 0
	}
	
	if [file exists $tmpdir/objdump.out] then {
	    set file_b [open $tmpdir/objdump.out r]
	} else {
	    fail "$tmpdir/objdump.out doesn't exist"
	    return 0
	}

	verbose "# Diff'ing: $expectfile $tmpdir/objdump.out" 2

	set eof -1
	set differences 0

	while { [gets $file_a line] != $eof } {
	    if [regexp "^#.*$" $line] then {
		continue
	    } else {
		lappend list_a $line
	    }
	}
	close $file_a

	while { [gets $file_b line] != $eof } {
	    if [regexp "^#.*$" $line] then {
		continue
	    } else {
		lappend list_b $line
	    }
	}
	close $file_b
	
	for { set i 0 } { $i < [llength $list_b] } { incr i } {
	    set line_b [lindex $list_b $i]
	    
# The tests are rigged so that we should never export a symbol with the
# word 'hide' in it.  Thus we just search for it, and bail if we find it.
	    if [regexp "hide" $line_b] then {
		verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
		
		return 0
	    }

	    verbose "\t$expectfile: $i: $line_b" 3

	    # We can't assume that the sort is consistent across
	    # systems, so we must check each regexp.  When we find a
	    # regexp, we null it out, so we don't match it twice.
	    for { set j 0 } { $j < [llength $list_a] } { incr j } {
		set line_a [lindex $list_a $j]

		if [regexp $line_a $line_b] then {
		    lreplace $list_a $j $j "CAN NOT MATCH"
		    break
		}
	    }

	    if { $j >= [llength $list_a] } {
		verbose -log "\t$tmpdir/objdump.out: $i: $line_b"
		
		return 0
	    }
	}
	
	if { [llength $list_a] != [llength $list_b] } {
	    verbose -log "Line count"
	    return 0
	}
	
	if $differences<1 then {
	    return 1
	}
	
	return 0
    } else {
	verbose -log "$exec_output"
	return 0
    }

}

proc build_lib {test libname obj1 obj2 dynsymexp} {
    global ld
    global objdump
    global tmpdir
    global shared
    global srcdir
    global subdir

    if {![ld_simple_link $ld $tmpdir/$libname.so "$shared $tmpdir/$obj1 $tmpdir/$obj2"]} {
	fail $test
	return
    }

    if {![objdump_dynsymstuff $objdump $tmpdir/$libname.so $srcdir/$subdir/$dynsymexp]} {
	fail $test
	return
    }
    pass $test
}

proc build_exec { test execname obj1 obj2 flags dat dynsymexp symexp} {
    global ld
    global objdump
    global tmpdir
    global shared
    global srcdir
    global subdir
    global exec_output

    if {![ld_link $ld $tmpdir/$execname "$flags $tmpdir/$obj1 $tmpdir/$obj2"]} {
	fail "$test"
	return
    }

    if {![string match "" $dynsymexp]} then {
        if {![objdump_dynsymstuff $objdump $tmpdir/$execname $srcdir/$subdir/$dynsymexp]} {
	    fail $test
	    return
	}
    }

    if {![string match "" $symexp]} then {
        if {![objdump_symstuff $objdump $tmpdir/$execname $srcdir/$subdir/$symexp]} {
	    fail $test
	    return
	}
    }

    # Run the resulting program
    send_log "$tmpdir/$execname >$tmpdir/$execname.out\n"
    verbose "$tmpdir/$execname >$tmpdir/$execname.out"
    catch "exec $tmpdir/$execname >$tmpdir/$execname.out" exec_output
    if ![string match "" $exec_output] then {
	send_log "$exec_output\n"
	verbose "$exec_output"
	fail $test
	return
    }

    send_log "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat\n"
    verbose "diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat"
    catch "exec diff $tmpdir/$execname.out $srcdir/$subdir/$dat.dat" exec_output
    set exec_output [prune_warnings $exec_output]

    if {![string match "" $exec_output]} then {
	send_log "$exec_output\n"
	verbose "$exec_output"
	fail $test
        return
    }

    pass $test
}

if [istarget mips*-*-*] {
    set picflag ""
} else {
    # Unfortunately, the gcc argument is -fpic and the cc argument is
    # -KPIC.  We have to try both.
    set picflag "-fpic"
    send_log "$CC $picflag\n"
    verbose "$CC $picflag"
    catch "exec $CC $picflag" exec_output
    send_log "$exec_output\n"
    verbose "--" "$exec_output"
    if { [string match "*illegal option*" $exec_output] \
	 || [string match "*option ignored*" $exec_output] \
	 || [string match "*unrecognized option*" $exec_output] \
	 || [string match "*passed to ld*" $exec_output] } {
	if [istarget *-*-sunos4*] {
	    set picflag "-pic"
	} else {
	    set picflag "-KPIC"
	}
    }
}
verbose "Using $picflag to compile PIC code"

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/foo.c $tmpdir/foo.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS $picflag" $srcdir/$subdir/bar.c $tmpdir/bar.o] {
    unresolved "ELF weak"
    return
}

if ![ld_compile "$CC $CFLAGS" $srcdir/$subdir/main.c $tmpdir/main.o] {
    unresolved "ELF weak"
    return
}

if {![ld_simple_link $ld $tmpdir/libbar.so "$shared $tmpdir/bar.o"]} {
    fail "ELF weak"
    return
}

build_lib "ELF DSO weak first" libfoo foo.o bar.o dso.dsym
build_lib "ELF DSO weak last" libfoo bar.o foo.o dso.dsym
build_lib "ELF DSO weak first DSO" libfoo foo.o libbar.so dsow.dsym
build_lib "ELF DSO weak last DSO" libfoo libbar.so foo.o dsow.dsym
build_exec "ELF weak first" foo main.o bar.o "" strong "" strong.sym
build_exec "ELF weak last" foo bar.o main.o "" strong "" strong.sym
build_exec "ELF weak first DSO" foo main.o libbar.so "-rpath ." weak weak.dsym ""
build_exec "ELF weak last DSO" foo libbar.so main.o "-rpath ." weak weak.dsym ""