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# Expect script for common symbol override.
#
# Copyright (C) 2011-2026 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 Maciej W. Rozycki <macro@codesourcery.com>
#
# This test is for ELF shared-library targets.
if { ![is_elf_format] || ![check_shared_lib_support] } {
return
}
# This target requires extra GAS options when building code for shared
# libraries.
set AFLAGS_PIC ""
if [istarget "tic6x-*-*"] {
append AFLAGS_PIC " -mpic -mpid=near"
}
# This target requires a non-default emulation for successful shared
# library/executable builds.
set LFLAGS ""
if [istarget "tic6x-*-*"] {
append LFLAGS " -melf32_tic6x_le"
}
# These targets do not default to linking with shared libraries.
if { [istarget "mips*vr4100*-*-elf*"] \
|| [istarget "mips*vr4300*-*-elf*"] \
|| [istarget "mips*vr5000*-*-elf*"] } {
append LFLAGS " -call_shared"
}
# Define a global symbol.
set testname "Common symbol override test"
run_ld_link_tests [list \
[list \
"$testname (auxiliary shared object build)" \
"$LFLAGS -shared" "" \
"$AFLAGS_PIC" \
{ comm-data1.s } \
{ \
{ readelf -s comm-data1.sd } \
} \
"libcomm-data.so" \
] \
]
# Set the pointer size according to the ELF flavor.
set AFLAGS ""
if [is_elf64 "tmpdir/libcomm-data.so"] {
append AFLAGS " --defsym ELF64=1"
}
# HPUX targets use a different .comm syntax.
if [istarget "*-*-hpux*"] {
append AFLAGS " --defsym HPUX=1"
}
# bfin-elf does not currently support copy relocs.
setup_xfail "bfin-*-*"
clear_xfail "bfin-*-linux-uclibc*"
# Verify that a common symbol has been converted to an undefined
# reference to the global symbol of the same name defined above
# and that the debug reference has been dropped.
run_ld_link_tests [list \
[list \
"$testname" \
"$LFLAGS -T comm-data2.ld -Ltmpdir -lcomm-data" "" \
"$AFLAGS" \
{ comm-data2.s } \
[list \
[list readelf -s comm-data2.sd] \
[list readelf -r comm-data2.rd] \
[list readelf "-x .debug_foo" comm-data2.xd]] \
"comm-data" \
] \
[list \
"$testname 3a" \
"-static" "" \
"" \
{ comm-data3a.s comm-data3b.s } \
{ \
{ readelf -s comm-data3.sd } \
} \
"comm-data3a" \
] \
[list \
"$testname 3b" \
"-static" "" \
"" \
{ comm-data3b.s comm-data3a.s } \
{ \
{ readelf -s comm-data3.sd } \
} \
"comm-data3b" \
] \
[list \
"libpr26580-1.so" \
"$LFLAGS -shared" "" \
"$AFLAGS_PIC $AFLAGS" \
{ pr26580-b.s } \
{ } \
"libpr26580-1.so" \
] \
[list \
"pr26580-1" \
"$LFLAGS --as-needed -Ltmpdir -lpr26580-1" "" \
"$AFLAGS" \
{ pr26580-a.s } \
{ {readelf -s pr26580-1.sd} } \
"pr26580-1" \
] \
[list \
"pr26580-2" \
"$LFLAGS --no-as-needed -Ltmpdir -lpr26580-1" "" \
"$AFLAGS" \
{ pr26580-a.s } \
{ {readelf -s pr26580-2.sd} } \
"pr26580-2" \
] \
]
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