6f8ea6c424
GCC 6 can be configured to generate PIE by default. But some linker size tests expect non-PIE. This patch defines NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if target compiler supports them. Add $NOPIE_CFLAGS and $NOPIE_LDFLAGS to linker size tests if needed. * config/default.exp (NOPIE_CFLAGS): New. (NOPIE_LDFLAGS): Likewise. * ld-size/size.exp (run_cc_link_tests): Add $NOPIE_CFLAGS and $NOPIE_LDFLAGS if needed. (run_ld_link_exec_tests): Add $NOPIE_CFLAGS if needed.
354 lines
8.5 KiB
Text
354 lines
8.5 KiB
Text
# Basic expect script for LD Regression Tests
|
|
# Copyright (C) 1993-2015 Free Software Foundation, Inc.
|
|
#
|
|
# This file is part of the GNU Binutils.
|
|
#
|
|
# 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 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, write to the Free Software
|
|
# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
|
|
# MA 02110-1301, USA.
|
|
#
|
|
# Written by Jeffrey Wheat (cassidy@cygnus.com)
|
|
#
|
|
|
|
if ![info exists ld] then {
|
|
set ld [findfile $base_dir/ld-new $base_dir/ld-new [transform ld]]
|
|
}
|
|
|
|
if ![info exists as] then {
|
|
set as [findfile $base_dir/../gas/as-new $base_dir/../gas/as-new [transform as]]
|
|
}
|
|
|
|
if ![info exists nm] then {
|
|
set nm [findfile $base_dir/../binutils/nm-new $base_dir/../binutils/nm-new [transform nm]]
|
|
}
|
|
|
|
if ![info exists objdump] then {
|
|
set objdump [findfile $base_dir/../binutils/objdump]
|
|
}
|
|
|
|
if ![info exists objcopy] then {
|
|
set objcopy [findfile $base_dir/../binutils/objcopy]
|
|
}
|
|
|
|
if ![info exists ar] then {
|
|
set ar [findfile $base_dir/../binutils/ar]
|
|
}
|
|
|
|
if ![info exists strip] then {
|
|
set strip [findfile $base_dir/../binutils/strip-new $base_dir/../binutils/strip-new [transform strip]]
|
|
}
|
|
|
|
remote_exec host "mkdir -p tmpdir"
|
|
|
|
# Make symlinks from tmpdir/ld to the linker and assembler in the
|
|
# build tree, so that we can use a -B option to gcc to force it to use
|
|
# the newly built linker and assembler.
|
|
if {![file isdirectory tmpdir/ld]} then {
|
|
catch "exec mkdir tmpdir/ld" status
|
|
catch "exec ln -s ../../ld-new tmpdir/ld/ld" status
|
|
catch "exec ln -s ld tmpdir/ld/collect-ld" status
|
|
catch "exec ln -s ../../../gas/as-new tmpdir/ld/as" status
|
|
}
|
|
set gcc_B_opt "-B[pwd]/tmpdir/ld/"
|
|
|
|
# load the linker path
|
|
set ld_L_opt ""
|
|
if {[file exists tmpdir/libpath.exp]} {
|
|
load_lib tmpdir/libpath.exp
|
|
|
|
foreach dir $libpath {
|
|
append ld_L_opt " -L$dir"
|
|
}
|
|
}
|
|
|
|
# The "make check" target in the Makefile passes in
|
|
# "CC=$(CC_FOR_TARGET)". But, if the user invokes runtest directly
|
|
# (as when testing an installed linker), these flags may not be set.
|
|
if {![info exists CC]} {
|
|
set CC [find_gcc]
|
|
}
|
|
if {![info exists CFLAGS]} {
|
|
set CFLAGS "-g -O2"
|
|
}
|
|
if {![info exists CXX]} {
|
|
set CXX [find_g++]
|
|
}
|
|
if {![info exists CXXFLAGS]} {
|
|
set CXXFLAGS ""
|
|
}
|
|
|
|
# The mips64-*-linux-gnu compiler defaults to the N32 ABI after
|
|
# installed, but to the O32 ABI in the build tree, because of some
|
|
# specs-file hacks. Make sure we use an ABI that is compatible with
|
|
# the one we expect.
|
|
if {[istarget mips64*-*-linux*] &&
|
|
(![board_info [target_info name] exists multilib_flags] ||
|
|
![string match "*-mabi" [board_info [target_info name] multilib_flags]])
|
|
} {
|
|
append gcc_B_opt " -mabi=n32"
|
|
}
|
|
|
|
if { [istarget rx-*-*] } {
|
|
global ASFLAGS
|
|
set ASFLAGS "-muse-conventional-section-names"
|
|
}
|
|
|
|
# load the utility procedures
|
|
load_lib ld-lib.exp
|
|
|
|
proc get_link_files {varname} {
|
|
global $varname
|
|
global target_triplet
|
|
global srcdir
|
|
global CC
|
|
if ![info exists $varname] {
|
|
#configure.host returns variables that can be substituted into
|
|
#makefile rules, with embedded shell variable expansions.
|
|
#make wants $$shell_var, we want $shell_var ...
|
|
set cmd "host='$target_triplet' && . $srcdir/../configure.host && sed -e 's,\\\$\\\$,\$,g' <<EOF\n\$$varname\nEOF"
|
|
set status [catch "exec sh -c [list $cmd]" result]
|
|
if $status { error "Error getting native link files: $result" }
|
|
set cmd "CC='$CC' && eval echo \"$result\""
|
|
set status [catch "exec sh -c [list $cmd]" result]
|
|
if $status { error "Error getting native link files: $result" }
|
|
set $varname $result
|
|
send_log "$varname = $result\n"
|
|
}
|
|
}
|
|
|
|
proc get_target_emul {} {
|
|
global target_triplet
|
|
global srcdir
|
|
set status [catch "exec sh -c \"targ='$target_triplet' && . $srcdir/../configure.tgt && echo \\\$targ_emul\"" result]
|
|
if $status { error "Error getting emulation name: $result" }
|
|
return $result
|
|
}
|
|
|
|
if [isnative] {
|
|
foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} {
|
|
get_link_files $x
|
|
}
|
|
} else {
|
|
foreach x {HOSTING_CRT0 HOSTING_SCRT0 HOSTING_LIBS HOSTING_SLIBS} { set $x "" }
|
|
}
|
|
if ![info exists HOSTING_EMU] { set HOSTING_EMU "-m [get_target_emul]" }
|
|
|
|
#
|
|
# ld_version -- extract and print the version number of ld compiler (GCC)
|
|
#
|
|
proc ld_version {} {
|
|
global ld
|
|
default_ld_version $ld
|
|
}
|
|
|
|
#
|
|
# ld_exit -- just a stub for ld
|
|
#
|
|
proc ld_exit {} {
|
|
}
|
|
|
|
#
|
|
# ld_start
|
|
# relink the linker
|
|
#
|
|
proc ld_start { ld target } {
|
|
#
|
|
}
|
|
|
|
#
|
|
# ld_relocate
|
|
# link an object using relocation
|
|
#
|
|
proc ld_relocate { ld target objects } {
|
|
default_ld_relocate $ld $target $objects
|
|
}
|
|
|
|
#
|
|
# ld_link
|
|
# link a program using ld
|
|
#
|
|
proc ld_link { ld target objects } {
|
|
default_ld_link $ld $target $objects
|
|
}
|
|
|
|
#
|
|
# ld_simple_link
|
|
# link a program using ld, without including any libraries
|
|
#
|
|
proc ld_simple_link { ld target objects } {
|
|
default_ld_simple_link $ld $target $objects
|
|
}
|
|
|
|
#
|
|
# ld_compile
|
|
# compile an object using $cc
|
|
#
|
|
proc ld_compile { cc source object } {
|
|
default_ld_compile $cc $source $object
|
|
}
|
|
|
|
#
|
|
# ld_assemble
|
|
# assemble a file
|
|
#
|
|
proc ld_assemble { as source object } {
|
|
default_ld_assemble $as "" $source $object
|
|
}
|
|
|
|
#
|
|
# ld_assemble_flags
|
|
# assemble a file with extra flags
|
|
#
|
|
proc ld_assemble_flags { as flags source object } {
|
|
default_ld_assemble $as $flags $source $object
|
|
}
|
|
|
|
#
|
|
# ld_nm
|
|
# run nm on a file
|
|
#
|
|
proc ld_nm { nm nmflags object } {
|
|
default_ld_nm $nm $nmflags $object
|
|
}
|
|
|
|
#
|
|
# ld_exec
|
|
# execute ithe target
|
|
#
|
|
proc ld_exec { target output } {
|
|
default_ld_exec $target $output
|
|
}
|
|
|
|
# From gas-defs.exp, to support run_dump_test.
|
|
if ![info exists AS] then {
|
|
set AS $as
|
|
}
|
|
|
|
if ![info exists ASFLAGS] then {
|
|
set ASFLAGS ""
|
|
}
|
|
|
|
if ![info exists OBJDUMP] then {
|
|
set OBJDUMP $objdump
|
|
}
|
|
|
|
if ![info exists OBJDUMPFLAGS] then {
|
|
set OBJDUMPFLAGS {}
|
|
}
|
|
|
|
if ![info exists NM] then {
|
|
set NM $nm
|
|
}
|
|
|
|
if ![info exists NMFLAGS] then {
|
|
set NMFLAGS {}
|
|
}
|
|
|
|
if ![info exists OBJCOPY] then {
|
|
set OBJCOPY $objcopy
|
|
}
|
|
|
|
if ![info exists OBJCOPYFLAGS] then {
|
|
set OBJCOPYFLAGS {}
|
|
}
|
|
|
|
if ![info exists READELF] then {
|
|
set READELF [findfile $base_dir/../binutils/readelf]
|
|
}
|
|
|
|
if ![info exists READELFFLAGS] then {
|
|
set READELFFLAGS {}
|
|
}
|
|
|
|
if ![info exists LD] then {
|
|
set LD [findfile $base_dir/ld-new ./ld-new [transform ld]]
|
|
}
|
|
|
|
if ![info exists LDFLAGS] then {
|
|
set LDFLAGS {}
|
|
}
|
|
|
|
# Set PLT_CFLAGS to "-fplt" if target compiler supports it.
|
|
|
|
if { ![info exists PLT_CFLAGS] } then {
|
|
if { [which $CC] != 0 } {
|
|
# Check if gcc supports -fplt
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/plt[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}.o
|
|
set f [open $src "w"]
|
|
puts $f ""
|
|
close $f
|
|
remote_download host $src
|
|
set plt_available [run_host_cmd_yesno "$CC" "$flags -c -fplt $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
|
|
if { $plt_available == 1 } then {
|
|
set PLT_CFLAGS "-fplt"
|
|
} else {
|
|
set PLT_CFLAGS ""
|
|
}
|
|
} else {
|
|
set PLT_CFLAGS ""
|
|
}
|
|
}
|
|
|
|
# Set NOPIE_CFLAGS to "-fno-PIE" and NOPIE_LDFLAGS to "-no-pie" if
|
|
# target compiler supports them.
|
|
|
|
if { ![info exists NOPIE_CFLAGS] || ![info exists NOPIE_LDFLAGS] } then {
|
|
if { [which $CC] != 0 } {
|
|
# Check if gcc supports -fno-PIE -no-pie.
|
|
set flags ""
|
|
if [board_info [target_info name] exists cflags] {
|
|
append flags " [board_info [target_info name] cflags]"
|
|
}
|
|
if [board_info [target_info name] exists ldflags] {
|
|
append flags " [board_info [target_info name] ldflags]"
|
|
}
|
|
|
|
set basename "tmpdir/nopie[pid]"
|
|
set src ${basename}.c
|
|
set output ${basename}
|
|
set f [open $src "w"]
|
|
puts $f "int main (void) { return 0; }"
|
|
close $f
|
|
remote_download host $src
|
|
set nopie_available [run_host_cmd_yesno "$CC" "$flags -fno-PIE -no-pie $src -o $output"]
|
|
remote_file host delete $src
|
|
remote_file host delete $output
|
|
file delete $src
|
|
|
|
if { $nopie_available == 1 } then {
|
|
set NOPIE_CFLAGS "-fno-PIE"
|
|
set NOPIE_LDFLAGS "-no-pie"
|
|
} else {
|
|
set NOPIE_CFLAGS ""
|
|
set NOPIE_LDFLAGS ""
|
|
}
|
|
} else {
|
|
set NOPIE_CFLAGS ""
|
|
set NOPIE_LDFLAGS ""
|
|
}
|
|
}
|