binutils-gdb/ld/testsuite/ld-elf/elf.exp
Alan Modra 8bddb52eb9 Re: Disable execstack and rwx segments warnings for MIPS targets.
PR 29263
	* configure.ac: Fix typo.
	* testsuite/ld-elf/elf.exp: Add mips to targets that need
	--warn-execstack to pass first pr29072 test.
2022-06-28 09:52:36 +09:30

616 lines
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# Expect script for various ELF tests.
# Copyright (C) 2002-2022 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.
#
# Exclude non-ELF targets.
if ![is_elf_format] {
return
}
# Return true if target is riscv little endian.
# xfail the riscv little endain targets for the compressed1d1 test;
# The riscv big endian targets and others should pass.
proc riscv_little_endian { } {
if { [istarget "riscv32-*-*"]
|| [istarget "riscv64-*-*"]
|| [istarget "riscv32le-*-*"]
|| [istarget "riscv64le-*-*"] } {
return 1
}
return 0
}
set old_ldflags $LDFLAGS
if { [istarget spu*-*-*] } {
set LDFLAGS "$LDFLAGS --local-store 0:0"
}
# hpux .comm differs from everyone else
set hpux ""
set old_asflags $ASFLAGS
if [istarget "*-*-hpux*"] {
set hpux "--defsym HPUX=1"
set ASFLAGS "$ASFLAGS --defsym HPUX=1"
}
if { [istarget alpha*-*-* ] } {
# The compress1 test is written expecting 32-bit addresses; force the
# executable down into the low address space to match.
# ??? How can we adjust just the one testcase?
set LDFLAGS "$LDFLAGS -Ttext-segment 0x1000000"
set ASFLAGS "$ASFLAGS --defsym NO_SET=1"
}
if [istarget "tic6x-*-*"] {
append ASFLAGS " -mpic -mpid=near"
}
if { [istarget "*-*-solaris*"] } {
# Same for Solaris
set options_regsub(ld) {-melf_x86_64 -melf_x86_64_sol2}
}
if { [is_remote host] } then {
remote_download host merge.ld
}
# Note - the output file from the second test (symbol3w.a) is
# used in the proc is_elf64 test below...
run_ld_link_tests [list \
[list "Build symbol3.a" \
"" "" $hpux \
{symbol3.s} {} "symbol3.a" ] \
[list "Build symbol3w.a" \
"" "" "" \
{symbol3w.s} {} "symbol3w.a" ] \
]
if [is_elf64 tmpdir/symbol3w.a] {
set ASFLAGS "$ASFLAGS --defsym ALIGN=3"
set pr23900_1_exp "pr23900-1-64.rd"
set pr25490_2_exp "pr25490-2-64.rd"
set pr25490_3_exp "pr25490-3-64.rd"
set pr25490_4_exp "pr25490-4-64.rd"
set pr25490_5_exp "pr25490-5-64.rd"
set pr25490_6_exp "pr25490-6-64.rd"
} else {
set ASFLAGS "$ASFLAGS --defsym ALIGN=2"
set pr23900_1_exp "pr23900-1-32.rd"
if { [istarget avr-*-*]
|| [istarget h8300-*-*]
|| [istarget ip2k-*-*]
|| [istarget m68hc11-*]
|| [istarget "z80-*-*"] } {
set pr25490_2_exp "pr25490-2-16.rd"
set pr25490_3_exp "pr25490-3-16.rd"
set pr25490_4_exp "pr25490-4-16.rd"
set pr25490_5_exp "pr25490-5-16.rd"
set pr25490_6_exp "pr25490-6-16.rd"
} else {
set pr25490_2_exp "pr25490-2-32.rd"
set pr25490_3_exp "pr25490-3-32.rd"
set pr25490_4_exp "pr25490-4-32.rd"
set pr25490_5_exp "pr25490-5-32.rd"
set pr25490_6_exp "pr25490-6-32.rd"
}
}
# Targets that use _bfd_generic_link_add_symbols won't pass pr21703 tests
run_ld_link_tests {
{"PR ld/21703"
"--allow-multiple-definition tmpdir/pr21703-1.o tmpdir/pr21703-2.o" "" "" \
{pr21703-1.s pr21703-2.s} {{readelf {-s} pr21703.sd}} "pr21703" }
{"PR ld/21703 -r"
"-r --allow-multiple-definition tmpdir/pr21703-3.o tmpdir/pr21703-4.o" "" "" \
{pr21703-3.s pr21703-4.s} {{readelf {-s} pr21703-r.sd}} "pr21703.o" }
} \[is_generic\]
if [is_underscore_target] {
set ASFLAGS "$ASFLAGS --defsym UNDERSCORE=1"
}
set saved_ASFLAGS "$ASFLAGS"
if { [istarget "i?86-*-*"] || [istarget "x86_64-*-*"] } {
set ASFLAGS "$ASFLAGS -mx86-used-note=no"
}
# Build libraries required for SHF_GNU_RETAIN tests.
if { [check_gc_sections_available] && [supports_gnu_osabi] } {
run_ld_link_tests [list \
[list "Build libretain5.a" "" "" "" \
{retain5lib.s} {} "libretain5.a"] \
[list "Build libretain6.a" "" "" "" \
{retain6lib.s} {} "libretain6.a"] \
]
}
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 $t]
}
set ASFLAGS "$saved_ASFLAGS"
# Check that the --out-implib option work correctly.
# Targets that don't use elf.em won't support this.
run_ld_link_tests [list \
[list "Generate empty import library" \
"--out-implib=tmpdir/implib.lib" "" \
[concat "--defsym NO_GLOBAL=1" $hpux] \
{implib.s} \
{{ld empty-implib.out}} \
"implib" ] \
[list "Generate import library" \
"--out-implib=tmpdir/implib.lib" "" \
$hpux \
{implib.s} \
{{readelf {-s tmpdir/implib.lib} implib.rd}} \
"implib" ] \
] \[uses_genelf\]
#v850 gas complains about .tbss.var section attributes.
if { [check_gc_sections_available] && ![istarget "v850-*-*"] } {
run_ld_link_tests {
{"--gc-sections on tls variable"
"--gc-section" "" "" {tls_gc.s} {} "tls_gc"}
}
}
proc target_defaults_to_execstack {} {
if { [istarget "aarch64*-*-*"]
|| [istarget "arc*-*-*"]
|| [istarget "cris*-*-*"]
|| [istarget "ia64*-*-*"]
|| [istarget "nios2*-*-*"]
|| [istarget "powerpc64*-*-*"]
|| [istarget "riscv*-*-*"]
|| [istarget "tilegx*-*-*"]
|| [istarget "tilepro*-*-*"] } {
return 0
}
return 1
}
if { [istarget *-*-*linux*]
|| [istarget *-*-nacl*]
|| [istarget *-*-gnu*] } {
run_ld_link_tests [list \
[list "stack exec" \
"-z execstack" \
"" \
"" \
{stack.s} \
{{readelf {-Wl} stack-exec.rd}} \
"stack-exec.exe"] \
[list "stack noexec" \
"-z noexecstack" \
"" \
"" \
{stack.s} \
{{readelf {-Wl} stack-noexec.rd}} \
"stack-noexec.exe"] \
[list "stack size" \
"-z stack-size=0x123400 -z noexecstack" \
"" \
"" \
{stack.s} \
{{readelf {-Wl} stack-size.rd}} \
"stack-size.exe"] \
[list "PT_GNU_PROPERTY alignment" \
"" \
"" \
"" \
{pr23900-1.s} \
[list [list "readelf" {-Wl} $pr23900_1_exp]] \
"pr23900-1.exe"] \
]
# Test the linker's generation of execstack and executable segment warnings.
# Since these are normally pruned from the linker's output we temporarily
# disable tha action here.
rename prune_warnings_extra old_prune_warnings_extra
proc prune_warnings_extra { text } {
return $text
}
# The HPPA target disables the warnings by default since it needs an
# executable stack to support older kernels and an RWX segment to
# support its PLT. MIPS also turns off exec stack warnings.
if { [istarget "hppa*-*-*"] || [istarget mips*-*-*] } {
set extra_link_opts "--warn-execstack --warn-rwx-segments"
} else {
set extra_link_opts ""
}
run_ld_link_tests [list \
[list "PR ld/29072 (warn about an executable .note.GNU-stack)" \
"-e 0 $extra_link_opts" \
"" \
"" \
{pr29072-a.s} \
{{ld pr29072.a.warn}} \
"pr29072-a.exe"] \
[list "PR 29072 (warn about -z execstack)" \
"-z execstack --warn-execstack" \
"" \
"" \
{stack.s} \
{{ld pr29072.c.warn}} \
"pr29072-c.exe"] \
[list "PR ld/29072 (suppress warnings about executable stack)" \
"-e 0 --no-warn-execstack" \
"" \
"" \
{pr29072-a.s} \
{} \
"pr29072-d.exe"] \
[list "Ensure that a warning issued when creating a segment with RWX permissions" \
"-e 0 -Tnobits-1.t --warn-rwx-segments" \
"" \
"" \
{nobits-1.s} \
{{ld rwx-segments-1.l}} \
"rwx-segments-1.exe"] \
[list "Ensure that a warning issued when creating a TLS segment with execute permission" \
"-e 0 -T rwx-segments-2.t --warn-rwx-segments" \
"" \
"" \
{size-2.s} \
{{ld rwx-segments-2.l}} \
"rwx-segments-2.exe"] \
[list "Ensure that the RWX warning can be suppressed" \
"-e 0 -Tnobits-1.t --no-warn-rwx-segments" \
"" \
"" \
{nobits-1.s} \
{} \
"rwx-segments-3.exe"] \
]
if { [target_defaults_to_execstack] } {
run_ld_link_tests [list \
[list "PR ld/29072 (warn about absent .note.GNU-stack)" \
"-e 0 -z stack-size=0x123400 --warn-execstack" \
"" \
"" \
{pr29072-b.s} \
{{ld pr29072.b.warn}} \
"pr29072-b.exe"] \
]
} else {
run_ld_link_tests [list \
[list "PR ld/29072 (ignore absent .note.GNU-stack)" \
"-e 0 -z stack-size=0x123400" \
"" \
"" \
{pr29072-b.s} \
{} \
"pr29072-b.exe"] \
]
}
# Restore the normal pruning behaviour.
rename prune_warnings_extra ""
rename old_prune_warnings_extra prune_warnings_extra
}
if [check_gc_sections_available] {
run_ld_link_tests [list \
[list "__patchable_function_entries section 2" \
"--gc-sections -e _start" \
"" \
"" \
{pr25490-2.s} \
[list [list "readelf" {-SW} $pr25490_2_exp]] \
"pr25490-2.exe"] \
[list "__patchable_function_entries section 3" \
"--gc-sections -e _start" \
"" \
"" \
{pr25490-3.s} \
[list [list "readelf" {-SW} $pr25490_3_exp]] \
"pr25490-3.exe"] \
[list "__patchable_function_entries section 4" \
"--gc-sections -e _start" \
"" \
"" \
{pr25490-4.s} \
[list [list "readelf" {-SW} $pr25490_4_exp]] \
"pr25490-4.exe"] \
[list "__patchable_function_entries section 5" \
"--gc-sections -e _start" \
"" \
"" \
{pr25490-5.s} \
[list [list "readelf" {-SW} $pr25490_5_exp]] \
"pr25490-5.exe"] \
[list "__patchable_function_entries section 6" \
"--gc-sections -e _start" \
"" \
"" \
{pr25490-6.s} \
[list [list "readelf" {-SW} $pr25490_6_exp]] \
"pr25490-6.exe"] \
]
}
set LDFLAGS $old_ldflags
set ASFLAGS $old_asflags
# Check to see if the C compiler works
if { ![check_compiler_available] } {
return
}
if [check_gc_sections_available] {
run_cc_link_tests {
{"PR ld/13195" "-Wl,--gc-sections" ""
{pr13195.c} {} "pr13195"}
}
}
set array_tests {
{"preinit array" "" ""
{preinit.c} "preinit" "preinit.out"}
{"init array" "" ""
{init.c} "init" "init.out"}
{"fini array" "" ""
{fini.c} "fini" "fini.out"}
{"init array mixed" "" ""
{init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
}
set array_tests_pie {
{"PIE preinit array" "-pie" ""
{preinit.c} "preinit" "preinit.out" "-fPIE"}
{"PIE init array" "-pie" ""
{init.c} "init" "init.out" "-fPIE"}
{"PIE fini array" "-pie" ""
{fini.c} "fini" "fini.out" "-fPIE"}
{"PIE init array mixed" "-pie" ""
{init-mixed.c} "init-mixed" "init-mixed.out" "-I. -fPIE"}
{"PIE PR ld/14525" "-pie" ""
{pr14525.c} "pr14525" "pr14525.out" "-fPIE"}
}
set array_tests_static {
{"static preinit array" "-static" ""
{preinit.c} "preinit" "preinit.out"}
{"static init array" "-static" ""
{init.c} "init" "init.out"}
{"static fini array" "-static" ""
{fini.c} "fini" "fini.out"}
{"static init array mixed" "-static" ""
{init-mixed.c} "init-mixed" "init-mixed.out" "-I."}
}
# NetBSD ELF systems do not currently support the .*_array sections.
set xfails "*-*-netbsd*"
run_ld_link_exec_tests $array_tests $xfails
if { [istarget *-*-linux*]
|| [istarget *-*-nacl*]
|| [istarget *-*-gnu*] } {
run_ld_link_exec_tests $array_tests_pie $xfails
if { $STATIC_PIE_LDFLAGS != "" } then {
run_ld_link_exec_tests [list \
[list \
"Static PIE preinit array" \
"$STATIC_PIE_LDFLAGS" \
"" \
{preinit.c} \
"preinit-static-pie" \
"preinit.out" \
"-fPIE" \
] \
[list \
"Static PIE init array" \
"$STATIC_PIE_LDFLAGS" \
"" \
{init.c} \
"init-static-pie" \
"init.out" \
"-fPIE" \
] \
[list \
"Static PIE fini array" \
"$STATIC_PIE_LDFLAGS" \
"" \
{fini.c} \
"fini-static-pie" \
"fini.out" \
"-fPIE" \
] \
[list \
"Static PIE init array mixed" \
"$STATIC_PIE_LDFLAGS" \
"" \
{init-mixed.c} \
"init-mixed-static-pie" \
"init-mixed.out" \
"-I. -fPIE" \
] \
[list \
"Static PIE PR ld/14525" \
"$STATIC_PIE_LDFLAGS" \
"" \
{pr14525.c} \
"pr14525-static-pie" \
"pr14525.out" \
"-fPIE" \
] \
]
}
run_ld_link_exec_tests [list \
[list \
"Run mbind2a" \
"$NOPIE_LDFLAGS -Wl,-z,common-page-size=0x4000 -Wl,-z,noexecstack" \
"" \
{ mbind2a.s mbind2b.c } \
"mbind2a" \
"pass.out" \
"-O2 -I../bfd" \
] \
[list \
"Run mbind2b" \
"-static -Wl,-z,common-page-size=0x4000 -Wl,-z,noexecstack" \
"" \
{ mbind2a.s mbind2b.c } \
"mbind2b" \
"pass.out" \
"-O2 -I../bfd" \
] \
]
}
run_ld_link_exec_tests $array_tests_static $xfails
run_cc_link_tests [list \
[list \
"Build pr26391-1" \
"-Wl,-z,unique-symbol" \
"-fno-function-sections" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
{{nm "" pr26391.nd}} \
"pr26391-1" \
] \
[list \
"Build pr26391-2" \
"-Wl,-z,unique-symbol" \
"-ffunction-sections" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
{{nm "" pr26391.nd}} \
"pr26391-2" \
] \
[list \
"Build pr26391-3" \
"-Wl,-z,unique-symbol,--emit-relocs" \
"-fno-function-sections" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
{{nm "" pr26391.nd}} \
"pr26391-3" \
] \
[list \
"Build pr26391-4" \
"-Wl,-z,unique-symbol,--emit-relocs" \
"-ffunction-sections" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
{{nm "" pr26391.nd}} \
"pr26391-4" \
] \
]
run_ld_link_tests [list \
[list \
"Build pr26391-5.o" \
"-z unique-symbol -r" \
"" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
[list \
[list "nm" "$dep_plug_opt" "pr26391.nd"] \
[list "nm" "$dep_plug_opt" "pr26391.fd"] \
] \
"pr26391-5.o" \
"-fno-function-sections" \
] \
[list \
"Build pr26391-6.o" \
"-z unique-symbol -r" \
"" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
{{nm "" pr26391.nd}} \
"pr26391-6.o" \
"-ffunction-sections" \
] \
]
run_ld_link_exec_tests [list \
[list \
"Run pr26391-1" \
"-Wl,-z,unique-symbol" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
"pr26391-1" \
"pr26391.out" \
"-fno-function-sections" \
] \
[list \
"Run pr26391-2" \
"-Wl,-z,unique-symbol" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
"pr26391-2" \
"pr26391.out" \
"-ffunction-sections" \
] \
[list \
"Run pr26391-3" \
"-Wl,-z,unique-symbol,--emit-relocs" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
"pr26391-3" \
"pr26391.out" \
"-fno-function-sections" \
] \
[list \
"Run pr26391-4" \
"-Wl,-z,unique-symbol,--emit-relocs" \
"" \
{pr26391a.c pr26391b.c pr26391c.c pr26391d.c} \
"pr26391-4" \
"pr26391.out" \
"-ffunction-sections" \
] \
[list \
"Run pr26391-5" \
"-Wl,-z,unique-symbol" \
"" \
{dummy.c} \
"pr26391-5" \
"pr26391.out" \
"" \
"c" \
"" \
"tmpdir/pr26391-5.o" \
] \
[list \
"Run pr26391-6" \
"-Wl,-z,unique-symbol" \
"" \
{dummy.c} \
"pr26391-6" \
"pr26391.out" \
"" \
"c" \
"" \
"tmpdir/pr26391-6.o" \
] \
]
catch "exec rm -f tmpdir/preinit tmpdir/init tmpdir/fini tmpdir/init-mixed" status