ld/testsuite/ld-elf/indirect.exp

# Expect script for various indirect symbol tests.
#   Copyright (C) 2012-2021 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
#

#
# Written by H.J. Lu (hongjiu.lu@intel.com)
#

# Exclude non-ELF targets.

if ![is_elf_format] {
    return
}

# Skip target where -shared is not supported

if ![check_shared_lib_support] {
    return
}

# Check if compiler works
if { ![check_compiler_available] } {
    return
}

# Some bare-metal targets don't support shared libs or PIC.
if { ![run_host_cmd_yesno $CC_FOR_TARGET "-shared -fPIC $srcdir/$subdir/dummy.c -o tmpdir/t.so"] } {
    return
}

proc check_link_message { cmd string testname } {
    send_log "$cmd\n"
    verbose "$cmd"
    catch "exec $cmd" exec_output
    send_log "$exec_output\n"
    verbose "$exec_output"

    foreach str $string {
	if [string match "*$str*" $exec_output] {
	    pass "$testname: $str"
	} else {
	    fail "$testname: $str"
	}
    }
}

# Disable LTO for these tests.
set cc_cmd "$CC_FOR_TARGET"
if {[check_lto_available]} {
   append cc_cmd " -fno-lto"
}

# Disable all sanitizers.
append cc_cmd " $NOSANITIZE_CFLAGS"

if { ![ld_compile $cc_cmd $srcdir/$subdir/indirect1a.c tmpdir/indirect1a.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/indirect1b.c tmpdir/indirect1b.o]
     || ![ld_compile "$cc_cmd -fPIC" $srcdir/$subdir/indirect2.c tmpdir/indirect2.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/indirect3a.c tmpdir/indirect3a.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/indirect3b.c tmpdir/indirect3b.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/indirect4a.c tmpdir/indirect4a.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/indirect4b.c tmpdir/indirect4b.o]
     || ![ld_compile "$cc_cmd -O2 -fPIC -I../bfd" $srcdir/$subdir/pr18720a.c tmpdir/pr18720a.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/pr18720b.c tmpdir/pr18720b.o]
     || ![ld_compile "$cc_cmd -fPIC" $srcdir/$subdir/pr19553d.c tmpdir/pr19553d.o]
     || ![ld_compile "$cc_cmd -fPIC" $srcdir/$subdir/pr19553c.c tmpdir/pr19553c.o]
     || ![ld_compile "$cc_cmd -fPIC" $srcdir/$subdir/pr19553b.c tmpdir/pr19553b.o]
     || ![ld_compile $cc_cmd $srcdir/$subdir/pr19553a.c tmpdir/pr19553a.o] } {
    unsupported "Indirect symbol tests"
    return
}

set build_tests {
  {"Build libindirect1c.so"
   "-shared" "-fPIC"
   {indirect1c.c} {} "libindirect1c.so"}
  {"Build libindirect3c.so"
   "-shared" "-fPIC"
   {indirect3c.c} {} "libindirect3c.so"}
  {"Build libindirect4c.so"
   "-shared" "-fPIC"
   {indirect4c.c} {} "libindirect4c.so"}
  {"Build libindirect5.so"
   "-shared -Wl,--version-script=indirect5.map" "-fPIC"
   {indirect5b.c} {} "libindirect5.so"}
  {"Build libpr18720c.so"
   "-shared" "-fPIC"
   {pr18720c.c} {} "libpr18720c.so"}
  {"Build pr18720b1.o"
   "-r -nostdlib tmpdir/pr18720b.o" ""
   {dummy.c} {} "pr18720b1.o"}
  {"Build pr18720a"
   "tmpdir/pr18720a.o tmpdir/pr18720b.o tmpdir/libpr18720c.so" ""
   {check-ptr-eq.c} {{readelf {--dyn-syms} pr18720.rd}} "pr18720a"}
  {"Build libpr19553b.so"
   "-shared -Wl,--version-script=pr19553.map" "-fPIC"
   {pr19553b.c} {} "libpr19553b.so"}
  {"Build libpr19553c.so"
   "-shared -Wl,--version-script=pr19553.map" "-fPIC"
   {pr19553c.c} {} "libpr19553c.so"}
  {"Build libpr19553d.so"
   "-shared tmpdir/libpr19553c.so" "-fPIC"
   {pr19553d.c} {} "libpr19553d.so"}
}

run_cc_link_tests $build_tests

set string ": final link failed: bad value"
set string1 ": local symbol \`foo\' in tmpdir/indirect1b.o is referenced by DSO"

set testname "Indirect symbol 1a"
set cmd "$ld -e start -o tmpdir/indirect1 tmpdir/indirect1a.o tmpdir/indirect1b.o tmpdir/libindirect1c.so"
check_link_message "$cmd" [list $string1 $string] "$testname"

set testname "Indirect symbol 1b"
set cmd "$ld -e start -o tmpdir/indirect1 tmpdir/indirect1a.o tmpdir/libindirect1c.so tmpdir/indirect1b.o"
check_link_message "$cmd" [list $string1 $string] "$testname"

set string2 ": no symbol version section for versioned symbol \`foo@FOO\'"
set testname "Indirect symbol 2"
set cmd "$ld -shared  -o tmpdir/indirect2.so tmpdir/indirect2.o"
check_link_message "$cmd" [list $string2] "$testname"

set run_tests {
    {"Run with libindirect3c.so 1"
     "-Wl,--no-as-needed tmpdir/indirect3a.o tmpdir/indirect3b.o tmpdir/libindirect3c.so" ""
     {dummy.c} "indirect3a" "indirect3.out"}
    {"Run with libindirect3c.so 2"
     "-Wl,--no-as-needed tmpdir/indirect3a.o tmpdir/libindirect3c.so tmpdir/indirect3b.o" ""
     {dummy.c} "indirect3b" "indirect3.out"}
    {"Run with libindirect3c.so 3"
     "-Wl,--no-as-needed tmpdir/indirect3b.o tmpdir/libindirect3c.so tmpdir/indirect3a.o" ""
     {dummy.c} "indirect3c" "indirect3.out"}
    {"Run with libindirect3c.so 4"
     "-Wl,--no-as-needed tmpdir/libindirect3c.so tmpdir/indirect3b.o tmpdir/indirect3a.o" ""
     {dummy.c} "indirect3d" "indirect3.out"}
    {"Run with libindirect4c.so 1"
     "-Wl,--no-as-needed tmpdir/indirect4a.o tmpdir/indirect4b.o tmpdir/libindirect4c.so" ""
     {dummy.c} "indirect4a" "indirect4.out"}
    {"Run with libindirect4c.so 2"
     "-Wl,--no-as-needed tmpdir/indirect4a.o tmpdir/libindirect4c.so tmpdir/indirect4b.o" ""
     {dummy.c} "indirect4b" "indirect4.out"}
    {"Run with libindirect4c.so 3"
     "-Wl,--no-as-needed tmpdir/indirect4b.o tmpdir/libindirect4c.so tmpdir/indirect4a.o" ""
     {dummy.c} "indirect4c" "indirect4.out"}
    {"Run with libindirect4c.so 4"
     "-Wl,--no-as-needed tmpdir/libindirect4c.so tmpdir/indirect4b.o tmpdir/indirect4a.o" ""
     {dummy.c} "indirect4d" "indirect4.out"}
    {"Run indirect5 1"
     "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libindirect5.so" ""
     {indirect5a.c} "indirect5a" "indirect5.out" "$NOPIE_CFLAGS"}
    {"Run indirect5 2"
     "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/indirect5a.o tmpdir/libindirect5.so" ""
     {dummy.c} "indirect5b" "indirect5.out" "$NOPIE_CFLAGS"}
    {"Run indirect6 1"
     "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libindirect5.so" ""
     {indirect6a.c} "indirect6a" "indirect5.out" "$NOPIE_CFLAGS"}
    {"Run indirect6 2"
     "$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/indirect6a.o tmpdir/libindirect5.so" ""
     {dummy.c} "indirect6b" "indirect5.out" "$NOPIE_CFLAGS"}
    {"Run with libpr18720c.so 1"
     "-Wl,--no-as-needed tmpdir/pr18720a.o tmpdir/pr18720b.o tmpdir/libpr18720c.so" ""
     {check-ptr-eq.c} "pr18720a" "pr18720.out"}
    {"Run with libpr18720c.so 2"
     "-Wl,--no-as-needed tmpdir/pr18720a.o tmpdir/libpr18720c.so tmpdir/pr18720b.o" ""
     {check-ptr-eq.c} "pr18720b" "pr18720.out"}
    {"Run with libpr18720c.so 3"
     "-Wl,--no-as-needed tmpdir/pr18720b.o tmpdir/libpr18720c.so tmpdir/pr18720a.o" ""
     {check-ptr-eq.c} "pr18720c" "pr18720.out"}
    {"Run with libpr18720c.so 4"
     "-Wl,--no-as-needed tmpdir/libpr18720c.so tmpdir/pr18720b.o tmpdir/pr18720a.o" ""
     {check-ptr-eq.c} "pr18720d" "pr18720.out"}
    {"Run with libpr18720c.so 5"
     "-Wl,--no-as-needed tmpdir/libpr18720c.so tmpdir/pr18720b1.o tmpdir/pr18720a.o" ""
     {check-ptr-eq.c} "pr18720d" "pr18720.out"}
    {"Run with libpr19553b.so"
     "-Wl,--no-as-needed tmpdir/libpr19553b.so tmpdir/libpr19553d.so -Wl,-rpath-link,." ""
     {pr19553a.c} "pr19553b" "pr19553b.out"}
    {"Run with libpr19553c.so"
     "-Wl,--no-as-needed tmpdir/libpr19553c.so tmpdir/libpr19553b.so tmpdir/libpr19553d.so" ""
     {pr19553a.c} "pr19553c" "pr19553c.out"}
    {"Run with libpr19553d.so"
     "-Wl,--no-as-needed tmpdir/libpr19553d.so tmpdir/libpr19553b.so -Wl,-rpath-link,." ""
     {pr19553a.c} "pr19553d" "pr19553d.out"}
}

run_ld_link_exec_tests $run_tests

# Check that "bar" is not dynamic in the executable
proc check_dynamic_syms { test } {
    global nm
    set cmd "$nm -D $test > dump.out"
    send_log "$cmd\n"
    catch "exec $cmd" comp_output
    if ![string match "" $comp_output] then {
	send_log "$comp_output\n"
	return 0
    }
    if { [string match "* bar\n*" [file_contents "dump.out"]] } then {
	verbose "output is [file_contents "dump.out"]"
	return 0
    }
    return 1
}

foreach t [list indirect5a indirect5b indirect6a indirect6b] {
    set testname [concat $t "dynsym"]
    if { [check_dynamic_syms tmpdir/$t] } {
	pass $testname
    } else {
	fail $testname
    }
}

send_log "$CC_FOR_TARGET -fPIE -pie $srcdir/$subdir/main.c -o tmpdir/pie"
catch "exec $CC_FOR_TARGET -fPIE -pie $srcdir/$subdir/main.c -o tmpdir/pie" exec_output
send_log "$exec_output"
if { ! [string match "" $exec_output] } {
    return
}

set pie_tests {
    {"Run indirect5 3"
     "-pie -Wl,--no-as-needed tmpdir/libindirect5.so" ""
     {indirect5a.c} "indirect5c" "indirect5.out" "-fPIE"}
    {"Run indirect5 4"
     "-pie -Wl,--no-as-needed tmpdir/indirect5a.o tmpdir/libindirect5.so" ""
     {dummy.c} "indirect5d" "indirect5.out" "-fPIE"}
    {"Run indirect6 3"
     "-pie -Wl,--no-as-needed tmpdir/libindirect5.so" ""
     {indirect6a.c} "indirect6c" "indirect5.out" "-fPIE"}
    {"Run indirect6 4"
     "-pie -Wl,--no-as-needed tmpdir/indirect6a.o tmpdir/libindirect5.so" "-fPIE"
     {dummy.c} "indirect6d" "indirect5.out" "-fPIE"}
}

run_ld_link_exec_tests $pie_tests

foreach t [list indirect5c indirect5d indirect6c indirect6d] {
    set testname [concat $t "dynsym"]
    if { [check_dynamic_syms tmpdir/$t] } {
	pass $testname
    } else {
	fail $testname
    }
}