# Expect script for ld-plugin LTO tests
# Copyright (C) 2011-2020 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.
# Check to see if the C and C++ compilers work
if { ![check_compiler_available] || [which $CXX] == 0 } {
return
}
# These tests require plugin and LTO.
if { ![check_plugin_api_available]
|| ![check_lto_available] } {
return
}
set saved_CFLAGS "$CFLAGS"
set saved_CXXFLAGS "$CXXFLAGS"
regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CFLAGS "" CFLAGS
regsub -all "(\\-Wp,)?-D_FORTIFY_SOURCE=\[0-9\]+" $CXXFLAGS "" CXXFLAGS
proc restore_notify { } {
global saved_CFLAGS
global saved_CXXFLAGS
set CFLAGS "$saved_CFLAGS"
set CXXFLAGS "$saved_CXXFLAGS"
}
set plugin_names {
liblto_plugin.so
liblto_plugin-0.dll
cyglto_plugin-0.dll
}
set plug_opt ""
foreach plug $plugin_names {
set plug_so [run_host_cmd $CC "--print-prog-name $plug"]
if { $plug_so eq $plug } then {
set plug_so [run_host_cmd $CC "--print-file-name $plug"]
}
if { $plug_so ne $plug } then {
set plug_opt "--plugin $plug_so"
break
}
}
set lto_fat ""
set lto_no_fat ""
if { [check_lto_fat_available] } {
set lto_fat "-ffat-lto-objects"
set lto_no_fat "-fno-fat-lto-objects"
set no_lto "-fno-lto"
}
# Simple LTO tests and generate input files for complex LTO tests.
set lto_link_tests [list \
[list "LTO 1" \
"-O2 -flto -fuse-linker-plugin" "-flto -fuse-linker-plugin" \
{lto-1a.c lto-1b.c} {} "lto-1.exe"] \
[list "Compile 2" \
"" "-O2 -flto -fuse-linker-plugin $NOSANITIZE_CFLAGS" \
{lto-2.c} {} ""] \
[list "LTO 2" \
"-static -O2 -flto -fuse-linker-plugin tmpdir/lto-2.o -lm" \
"$NOSANITIZE_CFLAGS" \
{dummy.c} {} "lto-2.exe"] \
[list "Compile 3a" \
"" "-flto" \
{lto-3a.c} {} ""] \
[list "Compile 3c" \
"" "-O2" \
{lto-3c.c} {} ""] \
[list "Build liblto-3.a" \
"" "-flto $lto_fat" \
{lto-3b.c} {} "liblto-3.a"] \
[list "Compile 5a" \
"" "-flto $lto_fat" \
{lto-5a.c} {} ""] \
[list "Compile 5b" \
"" "-flto $lto_fat" \
{lto-5b.c} {} ""] \
[list "Compile PR ld/12365" \
"" "-flto -O2 $lto_fat" \
{pr12365a.c pr12365b.c pr12365c.c} {} ""] \
[list "Compile 9" \
"" "-O2 -finline -flto" \
{lto-9.cc} {} "" "c++"] \
[list "Compile 11a" \
"" "-O -flto" \
{lto-11a.c} {} ""] \
[list "Compile 11b" \
"" "-O -flto" \
{lto-11b.c} {} ""] \
[list "Compile 11c" \
"" "-O" \
{lto-11c.c} {} ""] \
[list "Build liblto-12.a" \
"$plug_opt" "-O2 -flto" \
{lto-12c.c} {} "liblto-12.a"] \
[list "Compile 12" \
"" "-O2 -flto" \
{lto-12a.c lto-12b.c} {} ""] \
[list "Compile 13" \
"" "-O2 -flto" \
{lto-13a.c lto-13b.c} {} ""] \
[list "Build liblto-13.a" \
"" "-O2" \
{lto-13c.c} {} "liblto-13.a"] \
[list "Compile 14a" \
"" "-flto" \
{lto-14a.c lto-14b.c} {} ""] \
[list "Build liblto-14.a" \
"$plug_opt" "-flto" \
{lto-14c.c} {} "liblto-14.a"] \
[list "Compile 15a" \
"" "-flto" \
{lto-15a.c} {} ""] \
[list "Build liblto-15.a" \
"$plug_opt" "-flto" \
{lto-15b.c} {} "liblto-15.a"] \
[list "PR ld/12696" \
"-O2 -flto -fuse-linker-plugin -r -nostdlib" "-O2 -flto" \
{pr12696-1.cc} {} "pr12696-1r.o" "c++"] \
[list "Compile PR ld/12758" \
"" "" \
{pr12758a.s} {} ""] \
[list "Build libpr12758.a" \
"" "-flto -O2 $lto_fat $NOSANITIZE_CFLAGS" \
{pr12758b.c} {} "libpr12758.a"] \
[list "PR ld/12758" \
"$NOPIE_LDFLAGS $NOSANITIZE_CFLAGS -O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12758a.o -Wl,--start-group tmpdir/libpr12758.a -Wl,--end-group" \
"$NOSANITIZE_CFLAGS" \
{dummy.c} {} "pr12758.exe"] \
[list "Build libpr13183.a" \
"-T" "-flto -O2 $lto_fat" \
{pr13183a.c} {} "libpr13183.a"] \
[list "Compile PR ld/13183" \
"" "-flto -O2" \
{pr13183b.c} {} ""] \
[list "Compile PR ld/13201" \
"" "-flto -O2" \
{pr13201.c} {} ""] \
[list "PR ld/13287" \
"-flto -fuse-linker-plugin -Wl,--as-needed" "-flto" \
{pr13287.cc} {} "pr13287.exe" "c++"] \
[list "PR ld/15323 (1)" \
"" "-O2" \
{pr15323a.c} {} "" "c"] \
[list "PR ld/15323 (2)" \
"-O2 -flto -r -nostdlib" "-O2 -flto" \
{pr15323a.c} {} "pr15323a-r.o" "c"] \
[list "Compile(1) PR ld/pr16846" \
"" "-flto" \
{pr16846a.c pr16846b.c} {} ""] \
[list "Compile(2) PR ld/pr16846" \
"" "" \
{pr16846c.c} {} ""] \
[list "PR ld/pr16846(1)" \
"-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846b.o tmpdir/pr16846c.o" "" \
{dummy.c} {} "pr16846a.exe"] \
[list "PR ld/pr16846(2)" \
"-flto -fuse-linker-plugin tmpdir/pr16846a.o tmpdir/pr16846c.o tmpdir/pr16846b.o" "" \
{dummy.c} {} "pr16846b.exe"] \
[list "PR ld/19317 (1)" \
"$plug_opt" "-flto $lto_no_fat" \
{pr19317.c} {} "libpr19317.a"] \
[list "Build pr20276a.o" \
"" "-fno-lto -fcommon" \
{pr20276a.c}] \
[list "Build pr20276b.o" \
"$plug_opt" "-flto $lto_no_fat -fcommon" \
{pr20276b.c}] \
[list "Build pr20267a.o" \
"" "-fcommon" \
{pr20267a.c}] \
[list "Build libpr20267a.a" \
"$plug_opt" "-flto $lto_fat -fcommon" \
{pr20267b.c} {} "libpr20267a.a"] \
[list "Build libpr20267b.a" \
"$plug_opt" "-flto $lto_no_fat -fcommon" \
{pr20267b.c} {} "libpr20267b.a"] \
[list "Build pr20321" \
"-flto -Wl,-plugin,$plug_so" "-flto" \
{pr20321.c} {{warning ".*: duplicated plugin"}} \
"pr20321" "c"] \
[list "Build pr22502a.o" \
"" "" \
{pr22502a.c}] \
[list "Build pr22502b.o" \
"$plug_opt" "-flto $lto_no_fat" \
{pr22502b.c}] \
[list "Build pr22751.a" \
"$plug_opt" "-flto $lto_no_fat $INT128_CFLAGS" \
{pr22751.c} {} "pr22751.a"] \
[list "Build pr24406-2b.o" \
"" "-O2 -fno-lto" \
{pr24406-2b.c}] \
[list "Build pr26163a.o" \
"" "-O2 -fno-lto" \
{pr26163a.c}] \
[list "Build pr26262b.o" \
"" "-O2" \
{pr26262b.c} {} "" "c"] \
[list "Build pr26262c.o" \
"" "-O2" \
{pr26262c.c} {} "" "c"] \
[list "Build pr26267a.o" \
"" "-O2 -flto $lto_no_fat" \
{pr26267a.c} {} "" "c"] \
[list "Build pr26267b.o" \
"" "-O2" \
{pr26267b.c} {} "" "c"] \
[list "Build pr26267c.o" \
"" "-O2" \
{pr26267c.c} {} "" "c"] \
[list "Build pr26267a" \
"" "-O2" \
{pr26267a.c} {} "" "c"] \
[list "Build pr26267a" \
"-flto tmpdir/pr26267a.o tmpdir/pr26267b.o tmpdir/pr26267c.o" \
"-flto $lto_no_fat" \
{dummy.c} \
{{error_output "pr26267.err"}} \
"pr26267a"] \
[list "Build pr26267b" \
"-flto tmpdir/pr26267b.o tmpdir/pr26267c.o tmpdir/pr26267a.o" \
"-flto $lto_no_fat" \
{dummy.c} \
{{error_output "pr26267.err"}} \
"pr26267b"] \
[list "Build pr26389.o" \
"$plug_opt" "-flto $lto_no_fat -fcommon" \
{pr26389.c} \
[list [list "nm" "$plug_opt" "pr26389.d"]]] \
]
if { [at_least_gcc_version 10 0] } {
set lto_link_tests [concat $lto_link_tests [list \
[list "pr25355.o" \
"" \
"-flto -fno-common $lto_no_fat" \
{pr25355.c} \
[list [list "nm" "$plug_opt" "pr25355.d"]]] \
]]
}
if { [at_least_gcc_version 4 7] } {
set lto_link_tests [concat $lto_link_tests [list \
[list "Compile PR ld/12942 (1)" \
"" "-flto -O2" \
{pr12942a.cc pr12942c.cc} {} "" "c++"] \
[list "Compile PR ld/12942 (2)" \
"" "-O0" \
{pr12942b.cc} {} "" "c++"] \
]]
}
set lto_compile_elf_tests [list \
[list "Compile 7" \
"" "-flto -O2" \
{lto-7a.c lto-7b.c lto-7c.c} {} ""] \
[list "Compile 8a" \
"" "-O2" \
{lto-8a.c} {} ""] \
[list "Compile 8b" \
"" "-flto -O2" \
{lto-8b.c} {} ""] \
[list "PR ld/23309" \
"-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections -Wl,--gc-sections,-u,KeepMe" \
"-O2 -flto -fuse-linker-plugin -fvisibility=hidden -ffunction-sections" \
{pr23309.c} {{"nm" {} "pr23309.d"}} "pr23309.exe" "c"] \
]
# Generate input files for complex LTO tests for ELF.
set lto_link_elf_tests [list \
[list "LTO 6" \
"-O2 -flto -fuse-linker-plugin" "" \
{lto-6.c} {} "lto-6.exe" "c"] \
[list "Build liblto-7.so" \
"-shared" "-O2 -fpic" \
{lto-7d.c} {} "liblto-7.so" "c"] \
[list "Build liblto-17a.so" \
"-shared -O2 -fpic -flto -fuse-linker-plugin" "-O2 -fpic -flto" \
{lto-17a.c} {{"nm" {} "lto-17a.d"}} "liblto-17a.so" "c"] \
[list "Build liblto-17b.so 1" \
"-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
{lto-17b.c} {{"nm" {} "lto-17b-1.d"}} "liblto-17b.so"] \
[list "Build liblto-17b.so 2" \
"-shared -O2 -fpic -flto -fuse-linker-plugin tmpdir/lto-17a.o" "-O2 -fpic -flto" \
{lto-17b.c} {{"nm" {} "lto-17b-2.d"}} "liblto-17b.so"] \
[list "Compile PR ld/12760" \
"" "-g -O0" \
{pr12760a.c} {} ""] \
[list "Build libpr12760.a" \
"" "-flto -O2 $lto_fat" \
{pr12760b.c} {} "libpr12760.a"] \
[list "PR ld/12760" \
"-O2 -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin tmpdir/pr12760a.o -Wl,--start-group tmpdir/libpr12760.a -Wl,--end-group" "" \
{dummy.c} {{warning "pr12760a.c:6: warning: Bad \\.?bar"}} \
"pr12760.exe" "c"] \
[list "PR ld/12975" \
"-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib -Wl,-version-script,pr12975.t" "-O2 -flto" \
{pr12975.c} {{"readelf" {-s --wide} "pr12975.d"}} "pr12975.so" "c"] \
[list "PR ld/13229" \
"-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -finline -fno-early-inlining -flto" \
{pr13229.cc} {{"readelf" {-s --wide} "pr13229.d"}} "pr13229.so" "c++"] \
[list "PR ld/13244" \
"-shared -O2 -fPIC -flto -fuse-linker-plugin -nostdlib" "-O2 -fno-early-inlining -flto" \
{pr13244.c} {{"readelf" {-s --wide} "pr13244.d"}} "pr13244.so" "c"] \
[list "Build libpr16746a.a" \
"" "" \
{pr16746a.c pr16746b.c} {} "lib15146a.a"] \
[list "Build libpr16746b.a" \
"$plug_opt" "-O2 -flto" \
{pr16746c.c pr16746d.c} {} "lib15146b.a"] \
[list "PR ld/16746 (1)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr16746a.o tmpdir/pr16746c.o" "-O2 -flto" \
{dummy.c} {} "pr16746a.exe"] \
[list "PR ld/16746 (2)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr16746c.o tmpdir/pr16746a.o" "-O2 -flto" \
{dummy.c} {} "pr16746b.exe"] \
[list "Build pr21382a.o" \
"" "-O2 -flto" \
{pr21382a.c} {} "" "c"] \
[list "Build pr21382.so" \
"-shared" "-O2 -fpic" \
{pr21382b.c} {} "pr21382.so" "c"] \
[list {Build pr22220lib.so} \
{-shared -Wl,--version-script=pr22220lib.ver} {-fPIC} \
{pr22220lib.cc} {} {pr22220lib.so} {c++}] \
[list {Build pr22220main.o} \
{} {-flto} \
{pr22220main.cc} {} {} {c++}] \
[list "Build libpr23818.so" \
"-shared -flto -g -Wl,-version-script,pr23818.t" \
"-g -flto $lto_fat" \
{pr23818a.c pr23818b.c} \
{{"readelf" {-s --wide} "pr23818.d"}} \
"libpr23818.so"] \
[list "Build libpr23958.so" \
"-shared -flto -Wl,-version-script,pr23958.t" \
"-g -flto $lto_fat" \
{pr23958.c} \
"" \
"libpr23958.so"] \
[list "Build pr24486a.o" \
"$plug_opt" "-flto -O2" \
{pr24486a.c} {} "" "c"] \
[list "Build pr24486b.so" \
"-shared" "-O2 -fpic" \
{pr24486b.c} {} "pr24486b.so" "c"] \
[list "Build pr24486c.so" \
"-shared -Wl,--no-as-needed tmpdir/pr24486b.so" "-O2 -fpic" \
{pr24486c.c} {} "pr24486c.so" "c"] \
[list "PR ld/24486" \
"-O2 -flto tmpdir/pr24486a.o tmpdir/pr24486c.so -Wl,--as-needed tmpdir/pr24486b.so" "" \
{dummy.c} {} "pr24486.exe"] \
[list "Build pr25593a-1.o" \
"$plug_opt" "-flto -O2" \
{pr25593a-1.c} {} "" "c"] \
[list "Build pr25593a-2.o" \
"" "-O2" \
{pr25593a-2.c} {} "" "c"] \
[list "Build pr25593b.o" \
"" "-O2" \
{pr25593b.c} {} "" "c"] \
[list "Build pr25593c.so" \
"-shared" "-O2 -fpic" \
{pr25593c.c} {} "pr25593c.so" "c"] \
[list "Build pr25593d.so" \
"-shared" "-O2 -fpic" \
{pr25593d.c} {} "pr25593d.so" "c"] \
[list "Build pr25593e.so" \
"-shared" "-O2 -fpic" \
{pr25593e.c} {} "pr25593e.so" "c"] \
[list "PR ld/r25593 (LTO)" \
"-O2 -flto -Wl,--as-needed tmpdir/pr25593a-1.o tmpdir/pr25593b.o \
tmpdir/pr25593c.so tmpdir/pr25593d.so tmpdir/pr25593e.so" "" \
{dummy.c} {{readelf {-d --wide} pr25593.d}} "pr25593a.exe"] \
[list "PR ld/r25593" \
"-O2 -flto -Wl,--as-needed tmpdir/pr25593a-2.o tmpdir/pr25593b.o \
tmpdir/pr25593c.so tmpdir/pr25593d.so tmpdir/pr25593e.so" "" \
{dummy.c} {{readelf {-d --wide} pr25593.d}} "pr25593b.exe"] \
[list "Build pr25618a.o" \
"$plug_opt" "-O2 -flto -fpic" \
{pr25618a.cc} {} "" "c++"] \
[list "Build pr25618.a" \
"$plug_opt" "-O2 -flto -fpic" \
{pr25618b.cc} {} "pr25618.a" "c++"] \
[list "Build pr25618.so" \
"-shared -Wl,--exclude-libs,ALL tmpdir/pr25618a.o tmpdir/pr25618.a" \
"-fpic" \
{dummy.c} {{readelf {--dyn-syms --wide} pr25618.d}} "pr25618.so" "c++"] \
[list {liblto-18b.so} \
{-shared} {-O2 -fpic} \
{lto-18b.c} {} {liblto-18b.so}] \
[list {liblto-18b.a} \
"$plug_opt" {-flto -O2} \
{lto-18b.c} {} {liblto-18b.a}] \
[list {liblto-18c.so} \
{-shared} {-O2 -fpic} \
{lto-18c.c} {} {liblto-18c.so}] \
[list {liblto-18c.a} \
"$plug_opt" {-flto -O2} \
{lto-18c.c} {} {liblto-18c.a}] \
[list {lto-18d.o} \
{} {-flto -O2} \
{lto-18d.c} {} {}] \
]
# PR 14918 checks that libgcc is not spuriously included in a shared link of
# an empty program. The ARM crt1.o startup code however calls __libc_csu_init
# in /usr/lib/libc_nonshared.a(elf-init.oS). This in turn needs
# __aeabi_unwind_cpp_pr0@@GCC_3.5 which is provided by libgcc_s.so.1, so the
# test fails. Hence this code to skip the test.
if { ! [istarget "arm*-*-*"] } {
lappend lto_link_elf_tests [list \
[list "PR ld/14918" \
"-flto" "-flto" \
{pr14918.c} {{"readelf" {-d --wide} "pr14918.d"}} "pr14918.exe" "c"] \
]
}
# PR 12982 checks that an executable stack is not created by default
# when using the LTO plugin. The HPPA target however requires an
# executable stack for syscall restarts and signal returns, so we
# skip this test for that target.
if { ! [istarget "hppa*-*-*"] } {
lappend lto_link_elf_tests [list \
[list "PR ld/12982" \
"-O2 -flto -fuse-linker-plugin" "-O2 -flto" \
{pr12982.c} {{"readelf" {-l --wide} "pr12982.d"}} "pr12982.exe"] \
]
}
# Check final symbols in executables.
set lto_link_symbol_tests [list \
[list "LTO 3 symbol" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
{dummy.c} {{"nm" {} "lto-3.d"}} "lto-3.exe" "c"] \
[list "LTO 5 symbol" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
{dummy.c} {{"nm" {} "lto-5.d"}} "lto-5.exe" "c"] \
[list "LTO 9 symbol" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-9.o" "" \
{dummy.c} {{"nm" {-C} "lto-9.d"}} "lto-9.exe" "c++"] \
[list "LTO 16a symbol" \
"-O2 $NOSANITIZE_CFLAGS -Wl,-e,foo -nostdlib -flto -fuse-linker-plugin" \
"-flto $NOSANITIZE_CFLAGS" \
{lto-16a.c} {{"nm" {} "lto-16a.d"}} "lto-16.exe" "c"] \
[list "LTO 16b symbol" \
"-O2 $NOSANITIZE_CFLAGS -Wl,-e,foo -u bar -nostdlib -flto -fuse-linker-plugin" \
"-flto $NOSANITIZE_CFLAGS" \
{lto-16a.c lto-16b.c} {{"nm" {} "lto-16b.d"}} "lto-16b.exe" "c"] \
[list "PR ld/13183" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr13183b.o tmpdir/libpr13183.a" "" \
{dummy.c} {{"nm" {} "pr13183.d"}} "pr13183.exe" "c"] \
]
# LTO run-time tests.
set lto_run_tests [list \
[list "LTO 3a" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/liblto-3.a" "" \
{dummy.c} "lto-3b.exe" "lto-3.out" "" "c"] \
[list "LTO 3b" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o tmpdir/lto-3.o" "" \
{dummy.c} "lto-3c.exe" "lto-3.out" "" "c"] \
[list "LTO 3c" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-3a.o tmpdir/lto-3c.o -Wl,--whole-archive tmpdir/liblto-3.a -Wl,--no-whole-archive tmpdir/liblto-3.a" "" \
{dummy.c} "lto-3d.exe" "lto-3.out" "" "c"] \
[list "LTO 5" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-5.o" "" \
{dummy.c} "lto-5.exe" "lto-5.out" "" "c"] \
[list "LTO 11" \
"-O -flto -fuse-linker-plugin tmpdir/liblto-11.a" "" \
{dummy.c} "lto-11.exe" "lto-11.out" "" "c"] \
[list "LTO 12a" \
"-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/liblto-12.a tmpdir/lto-12b.o" "" \
{dummy.c} "lto-12a.exe" "lto-12.out" "" "c"] \
[list "LTO 12b" \
"-O -flto -fuse-linker-plugin tmpdir/lto-12a.o tmpdir/lto-12b.o tmpdir/liblto-12.a" "" \
{dummy.c} "lto-12b.exe" "lto-12.out" "" "c"] \
[list "LTO 13" \
"-O -flto -fuse-linker-plugin tmpdir/lto-13a.o tmpdir/liblto-13.a tmpdir/lto-13b.o" "" \
{dummy.c} "lto-13.exe" "lto-13.out" "" "c"] \
[list "LTO 14" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-14a.o -Wl,--whole-archive tmpdir/liblto-14.a -Wl,--no-whole-archive tmpdir/lto-14b.o" "" \
{dummy.c} "lto-14.exe" "lto-14.out" "" "c"] \
[list "LTO 15" \
"-O2 -flto -fuse-linker-plugin -Wl,--start-group tmpdir/liblto-15.a tmpdir/lto-15a.o -Wl,--end-group" "" \
{dummy.c} "lto-15.exe" "lto-15.out" "" "c"] \
[list "PR ld/13066" \
"-O2 -flto -fuse-linker-plugin" "" \
{pr13066.cc} "pr13066.exe" "pr13066.out" "" "c++"] \
[list "PR ld/13201" \
"-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr13201.o -lm" "" \
{dummy.c} "pr13201.exe" "pr13201.out" "" "c"] \
[list "PR ld/15323 (3)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr15323a.o" "" \
{pr15323b.c} "pr15323.exe" "pr15323.out" "-flto -O2" "c"] \
[list "PR ld/15323 (4)" \
"-O2 -flto tmpdir/pr15323a-r.o" "" \
{dummy.c} "pr15323a.exe" "pr15323.out" "-flto -O2" "c"] \
[list "PR ld/19317 (3)" \
"-O2 -flto tmpdir/pr19317-r.o" "" \
{dummy.c} "pr19317.exe" "pr19317.out" "-flto -O2" "c"] \
[list "Run pr20276" \
"-O2 -flto tmpdir/pr20276a.o tmpdir/pr20276b.o" "" \
{dummy.c} "pr20276" "pass.out" "-flto -O2" "c"] \
[list "Run pr20267a" \
"-O2 -flto -fcommon tmpdir/pr20267a.o tmpdir/libpr20267a.a" "" \
{dummy.c} "pr20267a" "pass.out" "-flto -O2 -fcommon" "c"] \
[list "Run pr20267b" \
"-O2 -flto -fcommon tmpdir/pr20267a.o tmpdir/libpr20267b.a" "" \
{dummy.c} "pr20267b" "pass.out" "-flto -O2 -fcommon" "c"] \
[list "Run pr22502" \
"-O2 -flto tmpdir/pr22502a.o tmpdir/pr22502b.o" "" \
{dummy.c} "pr20267" "pass.out" "-flto -O2 -fcommon" "c"] \
[list "Run pr22751" \
"-O2 -flto" "" \
{dummy.c} "pr22751" "pass.out" "-flto -O2" "c" "" \
"-Wl,--whole-archive tmpdir/pr22751.a -Wl,--no-whole-archive"] \
[list "Run pr24406-1" \
"-O2 -flto" "" \
{pr24406-1.c} "pr24406-1" "pass.out" "-flto -O2" "c" "" \
"-Wl,--wrap=read"] \
[list "Run pr24406-2" \
"-O2 -flto" "" \
{pr24406-2a.c} "pr24406-2" "pass.out" \
"-flto -O2" "c" "" \
"tmpdir/pr24406-2b.o -Wl,--wrap=cook"] \
[list "Run pr26163" \
"-O2 -flto" "" \
{pr26163b.c} "pr24406-2" "pass.out" \
"-flto -O2" "c" "" \
"tmpdir/pr26163a.o -Wl,--defsym,g=real_g"] \
[list "Run pr26262a" \
"-O2 -flto" "" \
{pr26262a.c} "pr26262a" "pass.out" \
"-flto -O2" "c" "" \
"tmpdir/pr26262b.o tmpdir/pr26262c.o"] \
[list "Run pr26262b" \
"-flto -O2 tmpdir/pr26262b.o tmpdir/pr26262c.o" "" \
{pr26262a.c} "pr26262b" "pass.out" \
"-flto -O2" "c" "" \
""] \
]
if { [at_least_gcc_version 4 7] } {
set lto_run_tests [concat $lto_run_tests [list \
[list "PR ld/12942 (1)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942b.o" "" \
{dummy.c} "pr12942a.exe" "pr12942.out" "" "c++"] \
[list "PR ld/12942 (2)" \
"-O2 -flto -fuse-linker-plugin tmpdir/pr12942a.o tmpdir/pr12942c.o" "" \
{dummy.c} "pr12942c.exe" "pr12942.out" "" "c++"] \
]]
}
# LTO run-time tests for ELF which require shared library support.
set lto_run_elf_shared_tests [list \
[list "LTO 7" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-7b.o tmpdir/lto-7c.o tmpdir/lto-7a.o -Wl,--no-as-needed tmpdir/liblto-7.so" "" \
{dummy.c} "lto-7.exe" "lto-7.out" "" "c"] \
[list "Run pr21382" \
"-O2 -flto -fuse-linker-plugin -Wl,--as-needed tmpdir/pr21382a.o tmpdir/pr21382.so" "" \
{dummy.c} "pr21382.exe" "pass.out" "" "c"] \
[list {pr22220a} \
{-flto -fuse-linker-plugin tmpdir/pr22220main.o tmpdir/pr22220lib.so} {} \
{dummy.c} {pr22220a.exe} {pass.out} {} {c++}] \
[list {pr22220b} \
{-flto -fuse-linker-plugin -Wl,--no-as-needed tmpdir/pr22220lib.so tmpdir/pr22220main.o} {} \
{dummy.c} {pr22220b.exe} {pass.out} {} {c++}] \
[list {lto-18 (1)} \
{-flto -fuse-linker-plugin} {} \
{lto-18a.c} {lto-18-1.exe} {lto-18.out} {-flto -O2} {c} {} \
{tmpdir/lto-18d.o -Wl,--as-needed,-R,tmpdir -Ltmpdir -llto-18b -llto-18c}] \
[list {lto-18 (2)} \
{-flto -fuse-linker-plugin} {} \
{lto-18a.c} {lto-18-2.exe} {lto-18.out} {-flto -O2} {c} {} \
{-Wl,--as-needed,-R,tmpdir -Ltmpdir -llto-18b -llto-18c tmpdir/lto-18d.o}] \
[list {lto-18 (3)} \
{-static -flto -fuse-linker-plugin} {} \
{lto-18a.c} {lto-18-3.exe} {lto-18.out} {-flto -O2} {c} {} \
{tmpdir/lto-18d.o -Ltmpdir -llto-18b -llto-18c}] \
[list {lto-18 (4)} \
{-static -flto -fuse-linker-plugin} {} \
{lto-18a.c} {lto-18-4.exe} {lto-18.out} {-flto -O2} {c} {} \
{ -Ltmpdir -llto-18b -llto-18c tmpdir/lto-18d.o}] \
]
# LTO run-time tests for ELF
set lto_run_elf_tests [list \
[list "LTO 8" \
"-O2 -flto -fuse-linker-plugin tmpdir/lto-8b.o tmpdir/lto-8a.o" "" \
{dummy.c} "lto-8.exe" "lto-8.out" "" "c"] \
[list "LTO TLS IE" \
"-O2 -flto -fuse-linker-plugin" "" \
{run-ie.c} "run-ie.exe" "run-ie.out" "" "c"] \
]
run_cc_link_tests $lto_link_tests
# These compilation tests generate intermediate object files which will be used
# by some elf tests besides shared libs tests. So, always compile them.
run_cc_link_tests $lto_compile_elf_tests
# Restrict these to ELF targets that support shared libs and PIC.
if { [is_elf_format] && [check_lto_shared_available] } {
run_cc_link_tests $lto_link_elf_tests
set testname "PR ld/16746 (3)"
set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746b.o tmpdir/pr16746d.o"]
if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
pass $testname
} {
fail $testname
}
set testname "PR ld/16746 (4)"
set exec_output [run_host_cmd "$CC" "-O2 -flto -fuse-linker-plugin tmpdir/pr16746d.o tmpdir/pr16746b.o"]
if { [ regexp "warning: \\.?foobar" $exec_output ] && ![ regexp "symbol from plugin" $exec_output ] } {
pass $testname
} {
fail $testname
}
}
set testname "Build liblto-11.a"
remote_file host delete "tmpdir/liblto-11.a"
set catch_output [run_host_cmd "$ar" "rc $plug_opt tmpdir/liblto-11.a tmpdir/lto-11a.o tmpdir/lto-11b.o tmpdir/lto-11c.o"]
if {![string match "" $catch_output]} {
unresolved $testname
restore_notify
return
}
if { [at_least_gcc_version 4 7] } {
# Check expected LTO linker errors.
# Since the asm symbol name hack in pr12365b.c doesn't work on all
# targets, run PR ld/12365 tests only for known targets.
if { ([istarget "i?86-*-elf*"]
|| [istarget "i?86-*-linux*"]
|| [istarget "i?86-*-gnu*"]
|| [istarget "x86_64-*-linux*"]
|| [istarget "amd64-*-linux*"]) } {
set testname "PR ld/12365"
set exec_output [run_host_cmd "$CC" "-O2 -flto -flto-partition=none -fuse-linker-plugin -o tmpdir/pr12365 tmpdir/pr12365a.o tmpdir/pr12365b.o tmpdir/pr12365c.o"]
set exec_output [prune_warnings $exec_output]
if { [ regexp "undefined reference to `my_bcopy'" $exec_output ] } {
# Linker should catch the reference to undefined `my_bcopy'
# error caused by a GCC bug.
pass $testname
} elseif { [ string match "" $exec_output ] } {
global READELF
set exec_output [run_host_cmd "$READELF" "-s -W tmpdir/pr12365"]
if { [ regexp "my_bcopy" $exec_output ] } {
# Verify that there is no `my_bcopy' symbol in executable.
fail $testname
} {
pass $testname
}
} {
fail $testname
}
run_cc_link_tests [list \
[list \
"Build pr22721a.so" \
"-shared $NOSANITIZE_CFLAGS -nostdlib -nostartfiles \
-Wl,-version-script,pr22721.t" \
"" \
{pr22721a.s} \
{} \
"pr22721a.so" \
] \
[list \
"Build pr22721b.o" \
"$plug_opt $NOSANITIZE_CFLAGS" \
"-O2 -fPIC -flto $lto_no_fat" \
{pr22721b.c} \
] \
[list \
"Build PR ld/pr22721" \
"-O2 -flto -fuse-linker-plugin -nostdlib -nostartfiles \
$NOSANITIZE_CFLAGS \
-Wl,-e,_start tmpdir/pr22721b.o tmpdir/pr22721a.so" \
"$NOSANITIZE_CFLAGS" \
{dummy.c} \
{} \
"pr22721.exe"
] \
]
}
set testname "PR ld/12942 (3)"
set exec_output [run_host_cmd "$CXX" "-O2 -flto -fuse-linker-plugin tmpdir/pr12942b.o tmpdir/pr12942a.o"]
if { [ regexp "undefined reference to `\\.?link_error\\(\\)'" $exec_output ] } {
pass $testname
} {
fail $testname
}
run_cc_link_tests [list \
[list \
"Build pr23460*.o" \
"$plug_opt" \
"-O2 -fPIC -flto $lto_no_fat" \
{pr23460a.c pr23460b.c pr23460c.c \
pr23460d.c pr23460e.c pr23460f.c} \
] \
]
set exec_output [run_host_cmd "sh" \
"-c \"ulimit -n 16; \
$ar -rc $plug_opt \
tmpdir/libpr23460.a \
tmpdir/pr23460a.o \
tmpdir/pr23460b.o \
tmpdir/pr23460c.o \
tmpdir/pr23460d.o \
tmpdir/pr23460e.o \
tmpdir/pr23460f.o\""]
set exec_output [prune_warnings $exec_output]
if [string match "" $exec_output] then {
pass "PR binutils/23460"
} else {
fail "PR binutils/23460"
}
}
# Run "ld -r" to generate inputs for complex LTO tests.
run_dump_test "lto-3r"
remote_exec host "mv" "tmpdir/dump tmpdir/lto-3.o"
run_dump_test "lto-5r"
remote_exec host "mv" "tmpdir/dump tmpdir/lto-5.o"
run_cc_link_tests $lto_link_symbol_tests
run_ld_link_tests [list \
[list "PR ld/19317 (2)" \
"-r tmpdir/pr19317.o" "" "" \
{dummy.s} {} "pr19317-r.o"] \
]
run_ld_link_exec_tests $lto_run_tests
if { [is_elf_format] } {
run_ld_link_exec_tests $lto_run_elf_tests
# Note - it is not guaranteed that the ordering of symbols in the dynamic
# symbol table will match the ordering of the symbols specified by the
# --dynamic-list command line option.
#
# For PR22983 we want to make sure that all four symbols specified in
# pr222983.t are present in the output, but a simple sequences of regexps
# will not work as we do not know the order of the symbols. (Readelf
# does not have a symbol sorting option and the run_cc_list_tests proc
# does not allow for the output of the dump program to piped into `sort`).
#
# So instead we run readelf four times, each time checking for the
# presence of a specific symbol from the pr22983.t file.
run_cc_link_tests [list \
[list \
"Build pr22983" \
"-Wl,--dynamic-list,pr22983.t" \
"-flto" \
{pr22983a.c pr22983b.c} \
{{readelf {--dyn-syms --wide} pr22983.1.d} \
{readelf {--dyn-syms --wide} pr22983.2.d} \
{readelf {--dyn-syms --wide} pr22983.3.d} \
{readelf {--dyn-syms --wide} pr22983.4.d}} \
"pr22983" \
] \
]
}
if { [is_elf_format] && [check_lto_shared_available] } {
run_ld_link_exec_tests $lto_run_elf_shared_tests
}
proc pr20103 {cflags libs} {
global CC
set testname "PR ld/20103 ($cflags $libs)"
set exec_output [run_host_cmd "$CC" "$cflags $libs"]
if { [ regexp "undefined reference to `\\.?dead'" $exec_output ] } {
pass "$testname (1)"
} {
fail "$testname (1)"
}
if { [ regexp "plugin needed to handle lto object" $exec_output ] } {
fail "$testname (2)"
} {
pass "$testname (2)"
}
}
if { [check_lto_fat_available] } {
run_cc_link_tests [list \
[list \
"Build fatpr20103a.a" \
"$plug_opt" "-flto -ffat-lto-objects" \
{pr20103a.c} {} "fatpr20103a.a"
] \
[list \
"Build fatpr20103b.a" \
"$plug_opt" "-flto -ffat-lto-objects" \
{pr20103b.c} {} "fatpr20103b.a"
] \
[list \
"Build fatpr20103c.a" \
"$plug_opt" "-flto -ffat-lto-objects" \
{pr20103c.c} {} "fatpr20103c.a" \
] \
[list \
"Build thinpr20103a.a" \
"$plug_opt" "-flto -fno-fat-lto-objects" \
{pr20103a.c} {} "thinpr20103a.a"
] \
[list \
"Build thinpr20103b.a" \
"$plug_opt" "-flto -fno-fat-lto-objects" \
{pr20103b.c} {} "thinpr20103b.a"
] \
[list \
"Build thinpr20103c.a" \
"$plug_opt" "-flto -fno-fat-lto-objects" \
{pr20103c.c} {} "thinpr20103c.a" \
] \
[list \
"Build pr20103a" \
"-O2 -flto -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
"-O2 -flto" \
{dummy.c} {} "pr20103a" \
] \
[list \
"Build pr20103b" \
"-O2 -flto -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
"-O2 -flto" \
{dummy.c} {} "pr20103b" \
] \
[list \
"Build pr20103c" \
"-O2 -Wl,--start-group tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a -Wl,--end-group" \
"-O2" \
{dummy.c} {} "pr20103c" \
] \
]
pr20103 "-O2 -flto" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
pr20103 "-O2 -flto" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
pr20103 "-O2" "tmpdir/fatpr20103a.a tmpdir/fatpr20103b.a tmpdir/fatpr20103c.a"
if { [at_least_gcc_version 4 9] } {
run_cc_link_tests [list \
[list \
"Build pr20103d" \
"-O2 -Wl,--start-group tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a -Wl,--end-group" \
"-O2" \
{dummy.c} {} "pr20103d" \
] \
]
pr20103 "-O2" "tmpdir/thinpr20103a.a tmpdir/thinpr20103b.a tmpdir/thinpr20103c.a"
}
}
restore_notify