ld/testsuite/ld-ifunc/ifunc.exp - binutils-gdb - Git at Google

 # Expect script for linker support of IFUNC symbols and relocations.
 #
 #   Copyright (C) 2009-2021 Free Software Foundation, Inc.
 #   Contributed by Red Hat.
 #
 # 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 Nick Clifton <nickc@redhat.com>


 if { ![is_elf_format] || ![supports_gnu_osabi]
      || [istarget alpha-*-*]
      || [istarget arc*-*-*]
      || [istarget am33*-*-*]
      || [istarget bfin-*-*]
      || [istarget cris*-*-*]
      || [istarget frv-*-*]
      || [istarget lm32-*-*]
      || [istarget m32r-*-*]
      || [istarget m68k-*-*]
      || [istarget microblaze-*-*]
      || [istarget mips*-*-*]
      || [istarget mn10300-*-*]
      || [istarget nds32*-*-*]
      || [istarget nios2-*-*]
      || [istarget or1k-*-*]
      || [istarget score*-*-*]
      || [istarget sh*-*-*]
      || [istarget tic6x-*-*]
      || [istarget tile*-*-*]
      || [istarget vax-*-*] } {
     verbose "IFUNC tests not run - target does not support IFUNC"
     return
 }

 # Skip targets where -shared is not supported

 if ![check_shared_lib_support] {
     return
 }

 set saved_ASFLAGS "$ASFLAGS"
 if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
     set ASFLAGS "$ASFLAGS -mx86-used-note=no"
 }

 # This test does not need a compiler...
 run_dump_test "ifuncmod5"

 set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
 foreach t $test_list {
     # We need to strip the ".d", but can leave the dirname.
     verbose [file rootname $t]
     run_dump_test [file rootname $t]
 }

 # We need a working compiler.  (Strictly speaking this is
 # not true, we could use target specific assembler files).
 if { ![check_compiler_available] } {
     verbose "IFUNC tests not run - no compiler available"
     return
 }

 # A procedure to check the OS/ABI field in the ELF header of a binary file.
 proc check_osabi { binary_file expected_osabi } {
     global READELF
     global READELFFLAGS

     catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got

     if ![string match "" $got] then {
 	verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
 	return 0
     }

     if { ![regexp "\n\[ \]*OS/ABI:\[ \]*(.+)\n\[ \]*ABI" \
 	   [file_contents readelf.out] nil osabi] } {
 	verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
 	return 0
     }

     if { $osabi == $expected_osabi } {
 	return 1
     }

     verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"

     return 0
 }

 # A procedure to confirm that a file contains the IFUNC symbol.
 # Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
 proc contains_ifunc_symbol { binary_file } {
     global READELF
     global READELFFLAGS

     catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got

     if ![string match "" $got] then {
 	verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
 	return -1
     }

     # Look for a line like this:
     #    58: 0000000000400600    30 IFUNC   GLOBAL DEFAULT   12 library_func2
     # with perhaps some other info between the visibility and section

     if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
 	return 0
     }

     return 1
 }

 # A procedure to confirm that a file contains the R_*_IRELATIVE
 # relocation.
 # Returns -1 upon error, 0 if the relocation was not found and 1 if
 # it was found.
 proc contains_irelative_reloc { binary_file } {
     global READELF
     global READELFFLAGS

     catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got

     if ![string match "" $got] then {
 	verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
 	return -1
     }

     # Look for a line like this:
     #    0000000000600ab0  0000000000000025 R_X86_64_IRELATIVE      000000000040061c
     #    080496f4  0000002a R_386_IRELATIVE


     if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_(\[_0-9A-Z\]+_IREL(|ATIVE)|PARISC_IPLT)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
 	return 0
     }

     return 1
 }

 # A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
 # Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
 proc contains_ifunc_reloc { binary_file } {
     global READELF
     global READELFFLAGS

     catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got

     if ![string match "" $got] then {
 	verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
 	return -1
     }

     if [string match "" [file_contents readelf.out]] then {
 	verbose "No relocs found in $binary_file"
 	return 0
     }

     if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
 	return 0
     }

     return 1
 }

 set fails 0

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

 # Create the object files, libraries and executables.
 if ![ld_compile "$cc_cmd -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
     fail "Could not create a PIC object file"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
     fail "Could not create a non-PIC object file"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
     fail "Could not create a PIC object file containing an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
     fail "Could not create a non-PIC object file containing an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
     fail "Could not create an ordinary non-PIC object file"
     set fails [expr $fails + 1]
 }
 if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
     fail "Could not create an empty object file"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
     fail "Could not create test-1.o"
     set fails [expr $fails + 1]
 }
 if ![ld_compile "$cc_cmd -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
     fail "Could not create test-2.o"
     set fails [expr $fails + 1]
 }

 if { $fails != 0 } {
     return
 }

 if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
     fail "Could not create a shared library containing an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
     fail "Could not create a static library containing an IFUNC symbol"
     set fails [expr $fails + 1]
 }

 if { $fails != 0 } {
     return
 }

 if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
     fail "Could not link a dynamic executable"
     set fails [expr $fails + 1]
 }
 if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
     fail "Could not link a dynamic executable using local ifunc"
     set fails [expr $fails + 1]
 }
 if ![string match "" $STATIC_LDFLAGS] {
     if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
 	fail "Could not link a static executable"
 	set fails [expr $fails + 1]
     }
 }
 if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
     fail "Could not link a non-ifunc using static executable"
     set fails [expr $fails + 1]
 }
 if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
     fail "Could not link test-1"
     set fails [expr $fails + 1]
 }
 if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
     fail "Could not link libtest-2.so"
     set fails [expr $fails + 1]
 }
 if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
     fail "Could not link libtest-2-now.so"
     set fails [expr $fails + 1]
 }

 if { $fails == 0 } {
   pass "Building ifunc binaries"
   set fails 0
 } else {
     return
 }

 # Check the executables and shared libraries
 #
 # The linked ifunc using executables and the shared library containing
 # ifunc should have an OSABI field of GNU.  The linked non-ifunc using
 # executable should have an OSABI field of NONE (aka System V).

 switch -glob $target_triplet {
     hppa*-*-linux* { set expected_none {UNIX - GNU} }
     default { set expected_none {UNIX - System V} }
 }

 if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
     fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
     set fails [expr $fails + 1]
 }
 if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
     fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
     set fails [expr $fails + 1]
 }
 if { ![string match "" $STATIC_LDFLAGS] \
      && ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
     fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
     set fails [expr $fails + 1]
 }
 if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
     fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
     set fails [expr $fails + 1]
 }
 if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
     fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
     set fails [expr $fails + 1]
 }

 # The linked ifunc using executables and the shared library containing
 # ifunc should contain an IFUNC symbol.  The non-ifunc using executable
 # should not.

 if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
     fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
     fail "Local ifunc-using executable does not contain an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if { ![string match "" $STATIC_LDFLAGS] \
      && [contains_ifunc_symbol tmpdir/static_prog] != 1} {
     fail "Static ifunc-using executable does not contain an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
     fail "Dynamic ifunc-using executable contains an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
     fail "Static non-ifunc-using executable contains an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
     fail "test-1 contains IFUNC symbols"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
     fail "libtest-2.so contains IFUNC symbols"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
     fail "libtest-2-now.so contains IFUNC symbols"
     set fails [expr $fails + 1]
 }

 # The linked ifunc using executables and shared libraries should contain
 # a dynamic reloc referencing the IFUNC symbol.  (Even the static
 # executable which should have a dynamic section created for it).  The
 # non-ifunc using executable should not.

 if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
     fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
     set fails [expr $fails + 1]
 }
 if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
     fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
     set fails [expr $fails + 1]
 }
 if { ![string match "" $STATIC_LDFLAGS] \
     && [contains_irelative_reloc tmpdir/static_prog] != 1} {
     fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
     fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
     set fails [expr $fails + 1]
 }
 if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
     fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
     set fails [expr $fails + 1]
 }

 if { $fails == 0 } {
   pass "Checking ifunc binaries"
 }

 run_cc_link_tests [list \
     [list \
 	"Build libpr16467a.so" \
 	"-shared -Wl,--version-script=pr16467a.map" \
 	"-fPIC" \
 	{ pr16467a.c } \
 	{} \
 	"libpr16467a.so" \
     ] \
     [list \
 	"Build libpr16467b.a" \
 	"" \
 	"-fPIC" \
 	{ pr16467b.c } \
 	{} \
 	"libpr16467b.a" \
     ] \
     [list \
 	"Build libpr16467b.so" \
 	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467a.so \
 	 -Wl,--version-script=pr16467b.map" \
 	"-fPIC" \
 	{ dummy.c } \
 	{} \
 	"libpr16467b.so" \
     ] \
     [list \
 	"Build libpr16467c.a" \
 	"" \
 	"" \
 	{ pr16467c.c } \
 	{} \
 	"libpr16467c.a" \
     ] \
     [list \
 	"Build libpr16467an.so" \
 	"-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
 	"-fPIC" \
 	{ pr16467a.c } \
 	{} \
 	"libpr16467an.so" \
     ] \
     [list \
 	"Build libpr16467bn.so" \
 	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467an.so \
 	 -Wl,--version-script=pr16467b.map" \
 	"-fPIC" \
 	{ dummy.c } \
 	{} \
 	"libpr16467bn.so" \
     ] \
 ]

 run_ld_link_exec_tests [list \
     [list \
 	"Common symbol override ifunc test 1a" \
 	"-static" \
 	"" \
 	{ ifunc-common-1a.c ifunc-common-1b.c } \
 	"ifunc-common-1a" \
 	"ifunc-common-1.out" \
 	"-g" \
     ] \
     [list \
 	"Common symbol override ifunc test 1b" \
 	"-static" \
 	"" \
 	{ ifunc-common-1b.c ifunc-common-1a.c } \
 	"ifunc-common-1b" \
 	"ifunc-common-1.out" \
 	"-g" \
     ] \
 ]

 # Run-time tests which require working IFUNC support.
 if { ![check_ifunc_available] } {
     return
 }

 run_cc_link_tests [list \
     [list \
 	"Build ifunc-lib.so" \
 	"-shared" \
 	"-fPIC" \
 	{ ifunc-lib.c } \
 	{} \
 	"libifunc-lib.so" \
     ] \
     [list \
 	"Build ifunc-libn.so" \
 	"-shared -Wl,-z,now" \
 	"-fPIC" \
 	{ ifunc-lib.c } \
 	{} \
 	"libifunc-libn.so" \
     ] \
 ]

 run_ld_link_exec_tests [list \
     [list \
 	"Run pr16467" \
 	"-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
 	"" \
 	{ dummy.c } \
 	"pr16467" \
 	"pr16467.out" \
 	"" \
     ] \
     [list \
 	"Run pr16467 (-z now)" \
 	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
 	"" \
 	{ dummy.c } \
 	"pr16467n" \
 	"pr16467.out" \
 	"" \
     ] \
     [list \
 	"Run ifunc-main" \
 	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 	"" \
 	{ ifunc-main.c } \
 	"ifunc-main" \
 	"ifunc-main.out" \
     ] \
     [list \
 	"Run ifunc-main with -fpic" \
 	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
 	"" \
 	{ ifunc-main.c } \
 	"ifunc-main" \
 	"ifunc-main.out" \
 	"-fpic" \
     ] \
     [list \
 	"Run ifunc-main (-z now)" \
 	"-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 	"" \
 	{ ifunc-main.c } \
 	"ifunc-mainn" \
 	"ifunc-main.out" \
     ] \
     [list \
 	"Run ifunc-main with PIE (-z now)" \
 	"-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
 	"" \
 	{ ifunc-main.c } \
 	"ifunc-mainpn" \
 	"ifunc-main.out" \
 	"-fpie" \
     ] \
 ]

 # Run-time tests which require working ifunc attribute support.
 if { ![check_ifunc_attribute_available] } {
     return
 }

 run_cc_link_tests [list \
     [list \
 	"Build pr18808a.o" \
 	"" \
 	"" \
 	{ pr18808a.c } \
 	"" \
 	"" \
     ] \
     [list \
 	"Build libpr18808.so" \
 	"-shared" \
 	"-fPIC -O2 -g" \
 	{ pr18808b.c } \
 	{} \
 	"libpr18808.so" \
     ] \
     [list \
 	"Build libpr18808n.so" \
 	"-shared -Wl,-z,now" \
 	"-fPIC -O2 -g" \
 	{ pr18808b.c } \
 	{} \
 	"libpr18808n.so" \
     ] \
     [list \
 	"Build pr18841a.o" \
 	"" \
 	"$NOPIE_CFLAGS" \
 	{ pr18841a.c } \
 	"" \
 	"" \
     ] \
     [list \
 	"Build libpr18841b.so" \
 	"-shared" \
 	"-fPIC -O0 -g" \
 	{ pr18841b.c } \
 	{} \
 	"libpr18841b.so" \
     ] \
     [list \
 	"Build libpr18841c.so" \
 	"-shared" \
 	"-fPIC -O0 -g" \
 	{ pr18841c.c } \
 	{} \
 	"libpr18841c.so" \
     ] \
     [list \
 	"Build libpr18841bn.so" \
 	"-Wl,-z,now -shared" \
 	"-fPIC -O0 -g" \
 	{ pr18841b.c } \
 	{} \
 	"libpr18841bn.so" \
     ] \
     [list \
 	"Build libpr18841cn.so" \
 	"-shared" \
 	"-Wl,-z,now -fPIC -O0 -g" \
 	{ pr18841c.c } \
 	{} \
 	"libpr18841cn.so" \
     ] \
     [list \
 	"Build libpr23169a.so" \
 	"-shared" \
 	"-fPIC -O2 -g" \
 	{ pr23169a.c } \
 	{} \
 	"libpr23169a.so" \
     ] \
     [list \
 	"Build libpr23169b.so" \
 	"-shared -Wl,-z,now" \
 	"-fPIC -O2 -g" \
 	{ pr23169a.c } \
 	{} \
 	"libpr23169b.so" \
     ] \
     [list \
 	"Build pr23169a" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"$NOPIE_CFLAGS -O2 -g" \
 	{ pr23169b.c pr23169c.c } \
 	{{readelf {--dyn-syms} pr23169a.rd} \
 	 {readelf {-r -W} pr23169b.rd}} \
 	"pr23169a" \
     ] \
     [list \
 	"Build pr23169b" \
 	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"-fPIE -O2 -g" \
 	{ pr23169b.c pr23169c.c } \
 	{{readelf {--dyn-syms} pr23169c.rd} \
 	 {readelf {-r -W} pr23169b.rd}} \
 	"pr23169b" \
     ] \
     [list \
 	"Build pr23169c" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"-fPIE -O2 -g" \
 	{ pr23169b.c pr23169c.c } \
 	{{readelf {--dyn-syms} pr23169a.rd} \
 	 {readelf {-r -W} pr23169b.rd}} \
 	"pr23169c" \
     ] \
     [list \
 	"Build pr23169d" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 	"$NOPIE_CFLAGS -O2 -g" \
 	{ pr23169b.c pr23169c.c } \
 	{{readelf {--dyn-syms} pr23169a.rd} \
 	 {readelf {-r -W} pr23169b.rd}} \
 	"pr23169d" \
     ] \
     [list \
 	"Build pr23169f" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 	"-fPIE -O2 -g" \
 	{ pr23169b.c pr23169c.c } \
 	{{readelf {--dyn-syms} pr23169a.rd} \
 	 {readelf {-r -W} pr23169b.rd}} \
 	"pr23169f" \
     ] \
 ]

 run_ld_link_exec_tests [list \
     [list \
 	"Run pr18808" \
 	"-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
 	"" \
 	{ dummy.c } \
 	"pr18808" \
 	"pr18808.out" \
     ] \
     [list \
 	"Run pr18808 (-z now)" \
 	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
 	"" \
 	{ dummy.c } \
 	"pr18808n" \
 	"pr18808.out" \
     ] \
     [list \
 	"Run pr18841 with libpr18841b.so" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
 	"$NOPIE_CFLAGS" \
 	{ dummy.c } \
 	"pr18841b" \
 	"pr18841.out" \
     ] \
     [list \
 	"Run pr18841 with libpr18841c.so" \
 	"$NOPIE_LDFLAGS -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
 	"$NOPIE_CFLAGS" \
 	{ dummy.c } \
 	"pr18841c" \
 	"pr18841.out" \
     ] \
     [list \
 	"Run pr18841 with libpr18841bn.so (-z now)" \
 	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
 	"$NOPIE_CFLAGS" \
 	{ dummy.c } \
 	"pr18841bn" \
 	"pr18841.out" \
     ] \
     [list \
 	"Run pr18841 with libpr18841cn.so (-z now)" \
 	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
 	"$NOPIE_CFLAGS" \
 	{ dummy.c } \
 	"pr18841cn" \
 	"pr18841.out" \
     ] \
 ]

 # The pr23169 testcase is not valid.  In general, you can't call ifunc
 # resolvers in another binary unless you know what you're doing.  In
 # particular you must ensure that the binary containing the resolver
 # is relocated before the resolver is called (for example, the
 # function addresses returned by the resolver may be loaded from the
 # GOT).
 # That does not happen for the pr23169 testcase where the resolver is
 # in the executable (which is relocated last by ld.so).
 if { [isnative]
      && !([istarget "powerpc-*-*"]
            || [istarget "aarch64*-*-*"]
            || [istarget "sparc*-*-*"]
            || [istarget "riscv*-*-*"]) } {
 run_ld_link_exec_tests [list \
     [list \
 	"Run pr23169a" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"" \
 	{ pr23169b.c pr23169c.c } \
 	"pr23169a" \
 	"pass.out" \
 	"$NOPIE_CFLAGS -O2 -g" \
     ] \
     [list \
 	"Run pr23169b" \
 	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"" \
 	{ pr23169b.c pr23169c.c } \
 	"pr23169b" \
 	"pass.out" \
 	"-fPIE -O2 -g" \
     ] \
     [list \
 	"Run pr23169c" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
 	"" \
 	{ pr23169b.c pr23169c.c } \
 	"pr23169c" \
 	"pass.out" \
 	"-fPIE -O2 -g" \
     ] \
     [list \
 	"Run pr23169d" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 	"" \
 	{ pr23169b.c pr23169c.c } \
 	"pr23169d" \
 	"pass.out" \
 	"$NOPIE_CFLAGS -O2 -g" \
     ] \
     [list \
 	"Run pr23169f" \
 	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
 	"" \
 	{ pr23169b.c pr23169c.c } \
 	"pr23169f" \
 	"pass.out" \
 	"-fPIE -O2 -g" \
     ] \
 ]
 if { $STATIC_PIE_LDFLAGS != "" } then {
     run_ld_link_exec_tests [list \
 	[list \
 	    "Run pr23169g" \
 	    "$STATIC_PIE_LDFLAGS" \
 	    "" \
 	    { pr23169a.c pr23169b.c pr23169c.c } \
 	    "pr23169g" \
 	    "pass.out" \
 	    "-fPIE -O2 -g" \
 	] \
 ]
 }
 }

 set ASFLAGS "$saved_ASFLAGS"
	# Expect script for linker support of IFUNC symbols and relocations.
	#
	# Copyright (C) 2009-2021 Free Software Foundation, Inc.
	# Contributed by Red Hat.
	#
	# 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 Nick Clifton <nickc@redhat.com>


	if { ![is_elf_format] \|\| ![supports_gnu_osabi]
	\|\| [istarget alpha--]
	\|\| [istarget arc--*]
	\|\| [istarget am33--*]
	\|\| [istarget bfin--]
	\|\| [istarget cris--*]
	\|\| [istarget frv--]
	\|\| [istarget lm32--]
	\|\| [istarget m32r--]
	\|\| [istarget m68k--]
	\|\| [istarget microblaze--]
	\|\| [istarget mips--*]
	\|\| [istarget mn10300--]
	\|\| [istarget nds32--*]
	\|\| [istarget nios2--]
	\|\| [istarget or1k--]
	\|\| [istarget score--*]
	\|\| [istarget sh--*]
	\|\| [istarget tic6x--]
	\|\| [istarget tile--*]
	\|\| [istarget vax--] } {
	verbose "IFUNC tests not run - target does not support IFUNC"
	return
	}

	# Skip targets where -shared is not supported

	if ![check_shared_lib_support] {
	return
	}

	set saved_ASFLAGS "$ASFLAGS"
	if { [istarget "i?86--"] \|\| [istarget "x86_64--"] } {
	set ASFLAGS "$ASFLAGS -mx86-used-note=no"
	}

	# This test does not need a compiler...
	run_dump_test "ifuncmod5"

	set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
	foreach t $test_list {
	# We need to strip the ".d", but can leave the dirname.
	verbose [file rootname $t]
	run_dump_test [file rootname $t]
	}

	# We need a working compiler. (Strictly speaking this is
	# not true, we could use target specific assembler files).
	if { ![check_compiler_available] } {
	verbose "IFUNC tests not run - no compiler available"
	return
	}

	# A procedure to check the OS/ABI field in the ELF header of a binary file.
	proc check_osabi { binary_file expected_osabi } {
	global READELF
	global READELFFLAGS

	catch "exec $READELF $READELFFLAGS --file-header $binary_file > readelf.out" got

	if ![string match "" $got] then {
	verbose "proc check_osabi: Readelf produced unexpected out processing $binary_file: $got"
	return 0
	}

	if { ![regexp "\n\[ \]OS/ABI:\[ \](.+)\n\[ \]*ABI" \
	[file_contents readelf.out] nil osabi] } {
	verbose "proc check_osabi: Readelf failed to extract an ELF header from $binary_file"
	return 0
	}

	if { $osabi == $expected_osabi } {
	return 1
	}

	verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"

	return 0
	}

	# A procedure to confirm that a file contains the IFUNC symbol.
	# Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
	proc contains_ifunc_symbol { binary_file } {
	global READELF
	global READELFFLAGS

	catch "exec $READELF $READELFFLAGS --symbols $binary_file > readelf.out" got

	if ![string match "" $got] then {
	verbose "proc contains_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
	return -1
	}

	# Look for a line like this:
	# 58: 0000000000400600 30 IFUNC GLOBAL DEFAULT 12 library_func2
	# with perhaps some other info between the visibility and section

	if { ![regexp ".\[ \]IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
	return 0
	}

	return 1
	}

	# A procedure to confirm that a file contains the R_*_IRELATIVE
	# relocation.
	# Returns -1 upon error, 0 if the relocation was not found and 1 if
	# it was found.
	proc contains_irelative_reloc { binary_file } {
	global READELF
	global READELFFLAGS

	catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got

	if ![string match "" $got] then {
	verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
	return -1
	}

	# Look for a line like this:
	# 0000000000600ab0 0000000000000025 R_X86_64_IRELATIVE 000000000040061c
	# 080496f4 0000002a R_386_IRELATIVE


	if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_(\[_0-9A-Z\]+_IREL(\|ATIVE)\|PARISC_IPLT)\[ \]\[0-9a-f\]\n" [file_contents readelf.out]] } {
	return 0
	}

	return 1
	}

	# A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
	# Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
	proc contains_ifunc_reloc { binary_file } {
	global READELF
	global READELFFLAGS

	catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got

	if ![string match "" $got] then {
	verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
	return -1
	}

	if [string match "" [file_contents readelf.out]] then {
	verbose "No relocs found in $binary_file"
	return 0
	}

	if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
	return 0
	}

	return 1
	}

	set fails 0

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

	# Create the object files, libraries and executables.
	if ![ld_compile "$cc_cmd -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
	fail "Could not create a PIC object file"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
	fail "Could not create a non-PIC object file"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
	fail "Could not create a PIC object file containing an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -c $NOPIE_CFLAGS -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
	fail "Could not create a non-PIC object file containing an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
	fail "Could not create an ordinary non-PIC object file"
	set fails [expr $fails + 1]
	}
	if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
	fail "Could not create an empty object file"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
	fail "Could not create test-1.o"
	set fails [expr $fails + 1]
	}
	if ![ld_compile "$cc_cmd -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
	fail "Could not create test-2.o"
	set fails [expr $fails + 1]
	}

	if { $fails != 0 } {
	return
	}

	if ![ld_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
	fail "Could not create a shared library containing an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
	fail "Could not create a static library containing an IFUNC symbol"
	set fails [expr $fails + 1]
	}

	if { $fails != 0 } {
	return
	}

	if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
	fail "Could not link a dynamic executable"
	set fails [expr $fails + 1]
	}
	if ![ld_link $CC "tmpdir/local_prog" "$NOPIE_LDFLAGS -Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
	fail "Could not link a dynamic executable using local ifunc"
	set fails [expr $fails + 1]
	}
	if ![string match "" $STATIC_LDFLAGS] {
	if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
	fail "Could not link a static executable"
	set fails [expr $fails + 1]
	}
	}
	if ![ld_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
	fail "Could not link a non-ifunc using static executable"
	set fails [expr $fails + 1]
	}
	if ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
	fail "Could not link test-1"
	set fails [expr $fails + 1]
	}
	if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
	fail "Could not link libtest-2.so"
	set fails [expr $fails + 1]
	}
	if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
	fail "Could not link libtest-2-now.so"
	set fails [expr $fails + 1]
	}

	if { $fails == 0 } {
	pass "Building ifunc binaries"
	set fails 0
	} else {
	return
	}

	# Check the executables and shared libraries
	#
	# The linked ifunc using executables and the shared library containing
	# ifunc should have an OSABI field of GNU. The linked non-ifunc using
	# executable should have an OSABI field of NONE (aka System V).

	switch -glob $target_triplet {
	hppa--linux* { set expected_none {UNIX - GNU} }
	default { set expected_none {UNIX - System V} }
	}

	if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
	fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
	set fails [expr $fails + 1]
	}
	if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
	fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
	set fails [expr $fails + 1]
	}
	if { ![string match "" $STATIC_LDFLAGS] \
	&& ![check_osabi tmpdir/static_prog {UNIX - GNU}]} {
	fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
	set fails [expr $fails + 1]
	}
	if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
	fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
	set fails [expr $fails + 1]
	}
	if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
	fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
	set fails [expr $fails + 1]
	}

	# The linked ifunc using executables and the shared library containing
	# ifunc should contain an IFUNC symbol. The non-ifunc using executable
	# should not.

	if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
	fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
	fail "Local ifunc-using executable does not contain an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if { ![string match "" $STATIC_LDFLAGS] \
	&& [contains_ifunc_symbol tmpdir/static_prog] != 1} {
	fail "Static ifunc-using executable does not contain an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
	fail "Dynamic ifunc-using executable contains an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
	fail "Static non-ifunc-using executable contains an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
	fail "test-1 contains IFUNC symbols"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
	fail "libtest-2.so contains IFUNC symbols"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
	fail "libtest-2-now.so contains IFUNC symbols"
	set fails [expr $fails + 1]
	}

	# The linked ifunc using executables and shared libraries should contain
	# a dynamic reloc referencing the IFUNC symbol. (Even the static
	# executable which should have a dynamic section created for it). The
	# non-ifunc using executable should not.

	if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
	fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
	set fails [expr $fails + 1]
	}
	if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
	fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
	set fails [expr $fails + 1]
	}
	if { ![string match "" $STATIC_LDFLAGS] \
	&& [contains_irelative_reloc tmpdir/static_prog] != 1} {
	fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
	fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
	set fails [expr $fails + 1]
	}
	if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
	fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
	set fails [expr $fails + 1]
	}

	if { $fails == 0 } {
	pass "Checking ifunc binaries"
	}

	run_cc_link_tests [list \
	[list \
	"Build libpr16467a.so" \
	"-shared -Wl,--version-script=pr16467a.map" \
	"-fPIC" \
	{ pr16467a.c } \
	{} \
	"libpr16467a.so" \
	] \
	[list \
	"Build libpr16467b.a" \
	"" \
	"-fPIC" \
	{ pr16467b.c } \
	{} \
	"libpr16467b.a" \
	] \
	[list \
	"Build libpr16467b.so" \
	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467a.so \
	-Wl,--version-script=pr16467b.map" \
	"-fPIC" \
	{ dummy.c } \
	{} \
	"libpr16467b.so" \
	] \
	[list \
	"Build libpr16467c.a" \
	"" \
	"" \
	{ pr16467c.c } \
	{} \
	"libpr16467c.a" \
	] \
	[list \
	"Build libpr16467an.so" \
	"-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
	"-fPIC" \
	{ pr16467a.c } \
	{} \
	"libpr16467an.so" \
	] \
	[list \
	"Build libpr16467bn.so" \
	"-shared -Wl,--as-needed tmpdir/pr16467b.o tmpdir/libpr16467an.so \
	-Wl,--version-script=pr16467b.map" \
	"-fPIC" \
	{ dummy.c } \
	{} \
	"libpr16467bn.so" \
	] \
	]

	run_ld_link_exec_tests [list \
	[list \
	"Common symbol override ifunc test 1a" \
	"-static" \
	"" \
	{ ifunc-common-1a.c ifunc-common-1b.c } \
	"ifunc-common-1a" \
	"ifunc-common-1.out" \
	"-g" \
	] \
	[list \
	"Common symbol override ifunc test 1b" \
	"-static" \
	"" \
	{ ifunc-common-1b.c ifunc-common-1a.c } \
	"ifunc-common-1b" \
	"ifunc-common-1.out" \
	"-g" \
	] \
	]

	# Run-time tests which require working IFUNC support.
	if { ![check_ifunc_available] } {
	return
	}

	run_cc_link_tests [list \
	[list \
	"Build ifunc-lib.so" \
	"-shared" \
	"-fPIC" \
	{ ifunc-lib.c } \
	{} \
	"libifunc-lib.so" \
	] \
	[list \
	"Build ifunc-libn.so" \
	"-shared -Wl,-z,now" \
	"-fPIC" \
	{ ifunc-lib.c } \
	{} \
	"libifunc-libn.so" \
	] \
	]

	run_ld_link_exec_tests [list \
	[list \
	"Run pr16467" \
	"-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
	"" \
	{ dummy.c } \
	"pr16467" \
	"pr16467.out" \
	"" \
	] \
	[list \
	"Run pr16467 (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
	"" \
	{ dummy.c } \
	"pr16467n" \
	"pr16467.out" \
	"" \
	] \
	[list \
	"Run ifunc-main" \
	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-main" \
	"ifunc-main.out" \
	] \
	[list \
	"Run ifunc-main with -fpic" \
	"-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-main" \
	"ifunc-main.out" \
	"-fpic" \
	] \
	[list \
	"Run ifunc-main (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-mainn" \
	"ifunc-main.out" \
	] \
	[list \
	"Run ifunc-main with PIE (-z now)" \
	"-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
	"" \
	{ ifunc-main.c } \
	"ifunc-mainpn" \
	"ifunc-main.out" \
	"-fpie" \
	] \
	]

	# Run-time tests which require working ifunc attribute support.
	if { ![check_ifunc_attribute_available] } {
	return
	}

	run_cc_link_tests [list \
	[list \
	"Build pr18808a.o" \
	"" \
	"" \
	{ pr18808a.c } \
	"" \
	"" \
	] \
	[list \
	"Build libpr18808.so" \
	"-shared" \
	"-fPIC -O2 -g" \
	{ pr18808b.c } \
	{} \
	"libpr18808.so" \
	] \
	[list \
	"Build libpr18808n.so" \
	"-shared -Wl,-z,now" \
	"-fPIC -O2 -g" \
	{ pr18808b.c } \
	{} \
	"libpr18808n.so" \
	] \
	[list \
	"Build pr18841a.o" \
	"" \
	"$NOPIE_CFLAGS" \
	{ pr18841a.c } \
	"" \
	"" \
	] \
	[list \
	"Build libpr18841b.so" \
	"-shared" \
	"-fPIC -O0 -g" \
	{ pr18841b.c } \
	{} \
	"libpr18841b.so" \
	] \
	[list \
	"Build libpr18841c.so" \
	"-shared" \
	"-fPIC -O0 -g" \
	{ pr18841c.c } \
	{} \
	"libpr18841c.so" \
	] \
	[list \
	"Build libpr18841bn.so" \
	"-Wl,-z,now -shared" \
	"-fPIC -O0 -g" \
	{ pr18841b.c } \
	{} \
	"libpr18841bn.so" \
	] \
	[list \
	"Build libpr18841cn.so" \
	"-shared" \
	"-Wl,-z,now -fPIC -O0 -g" \
	{ pr18841c.c } \
	{} \
	"libpr18841cn.so" \
	] \
	[list \
	"Build libpr23169a.so" \
	"-shared" \
	"-fPIC -O2 -g" \
	{ pr23169a.c } \
	{} \
	"libpr23169a.so" \
	] \
	[list \
	"Build libpr23169b.so" \
	"-shared -Wl,-z,now" \
	"-fPIC -O2 -g" \
	{ pr23169a.c } \
	{} \
	"libpr23169b.so" \
	] \
	[list \
	"Build pr23169a" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"$NOPIE_CFLAGS -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	{readelf {-r -W} pr23169b.rd}} \
	"pr23169a" \
	] \
	[list \
	"Build pr23169b" \
	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169c.rd} \
	{readelf {-r -W} pr23169b.rd}} \
	"pr23169b" \
	] \
	[list \
	"Build pr23169c" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	{readelf {-r -W} pr23169b.rd}} \
	"pr23169c" \
	] \
	[list \
	"Build pr23169d" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"$NOPIE_CFLAGS -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	{readelf {-r -W} pr23169b.rd}} \
	"pr23169d" \
	] \
	[list \
	"Build pr23169f" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"-fPIE -O2 -g" \
	{ pr23169b.c pr23169c.c } \
	{{readelf {--dyn-syms} pr23169a.rd} \
	{readelf {-r -W} pr23169b.rd}} \
	"pr23169f" \
	] \
	]

	run_ld_link_exec_tests [list \
	[list \
	"Run pr18808" \
	"-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
	"" \
	{ dummy.c } \
	"pr18808" \
	"pr18808.out" \
	] \
	[list \
	"Run pr18808 (-z now)" \
	"-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
	"" \
	{ dummy.c } \
	"pr18808n" \
	"pr18808.out" \
	] \
	[list \
	"Run pr18841 with libpr18841b.so" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841b" \
	"pr18841.out" \
	] \
	[list \
	"Run pr18841 with libpr18841c.so" \
	"$NOPIE_LDFLAGS -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841c" \
	"pr18841.out" \
	] \
	[list \
	"Run pr18841 with libpr18841bn.so (-z now)" \
	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841bn" \
	"pr18841.out" \
	] \
	[list \
	"Run pr18841 with libpr18841cn.so (-z now)" \
	"$NOPIE_LDFLAGS -Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
	"$NOPIE_CFLAGS" \
	{ dummy.c } \
	"pr18841cn" \
	"pr18841.out" \
	] \
	]

	# The pr23169 testcase is not valid. In general, you can't call ifunc
	# resolvers in another binary unless you know what you're doing. In
	# particular you must ensure that the binary containing the resolver
	# is relocated before the resolver is called (for example, the
	# function addresses returned by the resolver may be loaded from the
	# GOT).
	# That does not happen for the pr23169 testcase where the resolver is
	# in the executable (which is relocated last by ld.so).
	if { [isnative]
	&& !([istarget "powerpc--"]
	\|\| [istarget "aarch64--*"]
	\|\| [istarget "sparc--*"]
	\|\| [istarget "riscv--*"]) } {
	run_ld_link_exec_tests [list \
	[list \
	"Run pr23169a" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169a" \
	"pass.out" \
	"$NOPIE_CFLAGS -O2 -g" \
	] \
	[list \
	"Run pr23169b" \
	"-pie -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169b" \
	"pass.out" \
	"-fPIE -O2 -g" \
	] \
	[list \
	"Run pr23169c" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed tmpdir/libpr23169a.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169c" \
	"pass.out" \
	"-fPIE -O2 -g" \
	] \
	[list \
	"Run pr23169d" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169d" \
	"pass.out" \
	"$NOPIE_CFLAGS -O2 -g" \
	] \
	[list \
	"Run pr23169f" \
	"$NOPIE_LDFLAGS -Wl,--no-as-needed,-z,now tmpdir/libpr23169b.so" \
	"" \
	{ pr23169b.c pr23169c.c } \
	"pr23169f" \
	"pass.out" \
	"-fPIE -O2 -g" \
	] \
	]
	if { $STATIC_PIE_LDFLAGS != "" } then {
	run_ld_link_exec_tests [list \
	[list \
	"Run pr23169g" \
	"$STATIC_PIE_LDFLAGS" \
	"" \
	{ pr23169a.c pr23169b.c pr23169c.c } \
	"pr23169g" \
	"pass.out" \
	"-fPIE -O2 -g" \
	] \
	]
	}
	}

	set ASFLAGS "$saved_ASFLAGS"