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+# Expect script for LD selective linking tests
+# Copyright (C) 1998-2014 Free Software Foundation, Inc.
+#
+# This file is part of the GNU Binutils.
+#
+# 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, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+# Written by Catherine Moore (clm@cygnus.com)
+# Make sure that constructors are handled correctly.
+
+# Only ELF based ports support selective linking
+if { ![is_elf_format] || ![check_gc_sections_available] } {
+ return
+}
+
+# List contains test-items with three items followed by four lists:
+# 1:name 2:test-type (CC or C++; add as needed) 3:filename 4:ld-flags
+# 5:must-have-symbols 6:must-not-have-symbols 7:xfail-targets.
+#
+# If a must(-not)-have symbol is a list, then that list must have two
+# items; the symbol name and a value the symbol must (not) have.
+#
+# Note: ld_nm trims leading `_' from _start
+#
+# FIXME: Instead of table, read settings from each source-file.
+set seltests {
+ {selective1 C 1.c {} {} {dropme1 dropme2} {}}
+ {selective2 C 2.c {} {} {foo} {}}
+ {selective3 C 2.c {-u foo} {foo} {{foo 0}} {}}
+ {selective4 C++ 3.cc {} {start a A::foo() B::foo()} {A::bar()} {mips*-*}}
+ {selective5 C++ 4.cc {} {start a A::bar()} {A::foo() B::foo()} {mips*-*}}
+ {selective6 C++ 5.cc {} {start a A::bar()}
+ {A::foo() B::foo() dropme1() dropme2()} {*-*-*}}
+}
+
+set cflags "-w -O -ffunction-sections -fdata-sections"
+set cxxflags "-fno-exceptions -fno-rtti"
+set ldflags "--gc-sections -Bstatic"
+
+if [istarget mips*-*] {
+ # MIPS16 doesn't support PIC code.
+ set cflags "-mno-abicalls $cflags"
+ # MIPS ELF uses __start by default, we override it.
+ set ldflags "-e _start $ldflags"
+}
+
+if [istarget sh64*-*-elf] {
+ # This is what gcc passes to ld by default, plus switch to the
+ # "usual" ELF _start (shelf32 normally uses just `start' for COFF
+ # compatibility)
+ set ldflags "-e _start -mshelf32 $ldflags"
+}
+
+# If we don't have g++ for the target, mark all tests as untested.
+if { ![is_remote host] && [which $CXX] == 0 } {
+ foreach testitem $seltests {
+ untested "[lindex $testitem 0]"
+ }
+ return
+}
+
+foreach testitem $seltests {
+ set testname [lindex $testitem 0]
+ set testtype [lindex $testitem 1]
+ set testfile [lindex $testitem 2]
+ set objfile "tmpdir/[file rootname $testfile].o"
+ set ldfile "tmpdir/[file rootname $testfile].x"
+ set failed 0
+
+ set ldargs [lindex $testitem 3]
+ set mustsyms [lindex $testitem 4]
+ set mustnotsyms [lindex $testitem 5]
+ set xfails [lindex $testitem 6]
+
+ foreach xfail_target $xfails {
+ setup_xfail $xfail_target
+ }
+
+ # It's either C or C++ at the moment.
+ if { $testtype == "C++" } {
+ set compiler "$CXX"
+ # Starting with 3.4.0, -fvtable-gc is no longer supported and thus
+ # the functionality we try to test for cannot be expected to work.
+ set version [remote_exec host "$CXX -dumpversion"]
+ set version [lindex $version 1]
+ if [regexp "^(\[1-9\]\[0-9\]+|\[4-9\]|3.(\[1-9\]\[0-9\]+|\[4-9\]))\\." $version] {
+ set testflags "$cflags $cxxflags"
+ setup_xfail {*-*-*}
+ } else {
+ set testflags "$cflags $cxxflags -fvtable-gc"
+ }
+ } else {
+ set testflags "$cflags"
+ set compiler "$CC"
+ }
+
+ # Note that we do not actually *use* CXX; we just add cxxflags for C++
+ # tests. It might have been a buglet originally; now I think better
+ # leave as is.
+ if { ![ld_compile "$compiler $testflags" $srcdir/$subdir/$testfile $objfile] } {
+ unresolved $testname
+ continue
+ }
+
+ # V850 targets need libgcc.a
+ if [istarget v850*-*-elf] {
+ set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
+ set libgcc [lindex $libgcc 1]
+ regsub -all "\[\r\n\]" $libgcc "" libgcc
+ set objfile "$objfile $libgcc"
+ }
+
+ # ARM targets need libgcc.a in THUMB mode so that __call_via_r3 is provided
+ if {[istarget arm-*-*]} {
+ set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
+ set libgcc [lindex $libgcc 1]
+ regsub -all "\[\r\n\]" $libgcc "" libgcc
+ set objfile "$objfile $libgcc"
+ }
+
+ # HPPA linux targets need libgcc.a for millicode routines ($$dyncall).
+ if [istarget hppa*-*-linux*] {
+ set libgcc [remote_exec host "$compiler -print-libgcc-file-name"]
+ set libgcc [lindex $libgcc 1]
+ regsub -all "\[\r\n\]" $libgcc "" libgcc
+ set objfile "$objfile $libgcc"
+ }
+
+ # m6811/m6812 code has references to soft registers.
+ if {[istarget m6811-*-*] || [istarget m6812-*-*] || [istarget m68hc1*-*-*]} {
+ set objfile "$objfile --defsym _.frame=0 --defsym _.d1=0"
+ set objfile "$objfile --defsym _.d2=0"
+ }
+
+ if ![ld_simple_link $ld $ldfile "$ldflags [join $ldargs] $objfile"] {
+ fail $testname
+ continue
+ }
+
+ if ![ld_nm $nm --demangle $ldfile] {
+ unresolved $testname
+ continue
+ }
+
+ # Must make V2 demangled names look like V3
+ foreach nm_output_key [array names nm_output] {
+ if [regsub \\(void\\) $nm_output_key () new_nm_output_key] {
+ set nm_output($new_nm_output_key) nm_output($nm_output_key)
+ }
+ }
+
+ # Check each mandated symbol and optionally mandated values.
+ foreach mustsym $mustsyms {
+ if { [llength [concat $mustsym]] == 1 } {
+ if { ![info exists nm_output($mustsym)] } {
+ verbose -log "$testname: missing $mustsym"
+ fail $testname
+ set failed 1
+ break
+ }
+ } {
+ set mustsymname [lindex $mustsym 0]
+ set mustsymvalue [lindex $mustsym 1]
+ if { ![info exists nm_output($mustsymname)] } {
+ verbose -log "$testname: missing $mustsymname"
+ fail $testname
+ set failed 1
+ break
+ } {
+ if { $nm_output($mustsymname) != $mustsymvalue } {
+ verbose -log "$testname: $mustsymname != $mustsymvalue"
+ verbose -log "is instead $nm_output($mustsymname)"
+ fail $testname
+ set failed 1
+ break
+ }
+ }
+ }
+ }
+
+ if { $failed != 0 } {
+ continue
+ }
+
+ # Check each unwanted symbol, or that symbols do not have specific
+ # values.
+ foreach mustnotsym $mustnotsyms {
+ if { [llength [concat $mustnotsym]] == 1 } {
+ if { [info exists nm_output($mustnotsym)] } {
+ verbose -log "$testname: $mustnotsym == $nm_output($mustnotsym)"
+ fail $testname
+ set failed 1
+ break
+ }
+ } {
+ set mustnotsymname [lindex $mustnotsym 0]
+ set mustnotsymvalue [lindex $mustnotsym 1]
+ if { [info exists nm_output($mustnotsymname)] \
+ && $nm_output($mustnotsymname) == $mustnotsymvalue} {
+ verbose -log "$testname: $mustnotsymname == $mustnotsymvalue"
+ fail $testname
+ set failed 1
+ break
+ }
+ }
+ }
+
+ if { $failed == 0 } {
+ pass $testname
+ }
+}
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