mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
35399224a1
bfd/ PR ld/15167 * elf64-ia64-vms.c (elf64_vms_link_add_object_symbols): Set unique_global only for definition. * elflink.c (_bfd_elf_merge_symbol): Don't set unique_global here. (elf_link_add_object_symbols): Set unique_global only for definition. ld/testsuite/ PR ld/15167 * ld-unique/unique.exp: Add a test for shared library with reference.
269 lines
8.7 KiB
Plaintext
269 lines
8.7 KiB
Plaintext
# Expect script for linker support of STB_GNU_UNIQUE symbols
|
|
#
|
|
# Copyright 2009, 2010, 2011, 2012 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>
|
|
# Adapted for unique checking by Mark J. Wielaard <mjw@redhat.com>
|
|
|
|
|
|
# STB_GNU_UNIQUE support has only been implemented for the ix86, x86_64,
|
|
# arm, powerpc, and sparc so far.
|
|
if {!(([istarget "i?86-*-*"]
|
|
|| [istarget "x86_64-*-*"]
|
|
|| [istarget "arm-*-*"]
|
|
|| [istarget "powerpc*-*-*"]
|
|
|| [istarget "sparc*-*-*"])
|
|
&& ([istarget "*-*-elf*"]
|
|
|| [istarget "*-*-nacl*"]
|
|
|| (([istarget "*-*-linux*"]
|
|
|| [istarget "*-*-gnu*"])
|
|
&& ![istarget "*-*-*aout*"]
|
|
&& ![istarget "*-*-*oldld*"]))) } {
|
|
verbose "UNIQUE tests not run - target does not support UNIQUE"
|
|
return
|
|
}
|
|
|
|
# We need a native system. FIXME: Strictly speaking this
|
|
# is not true, we just need to know how to create a fully
|
|
# linked executable, including the C and Z libraries, using
|
|
# the linker that is under test.
|
|
if ![isnative] {
|
|
verbose "UNIQUE tests not run - not a native toolchain"
|
|
return
|
|
}
|
|
|
|
# We need a working compiler. (Strictly speaking this is
|
|
# not true, we could use target specific assembler files).
|
|
if { [which $CC] == 0 } {
|
|
verbose "UNIQUE 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 UNIQUE symbol.
|
|
# Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
|
|
proc contains_unique_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_unique_symbol: Readelf produced unexpected out processing $binary_file: $got"
|
|
return -1
|
|
}
|
|
|
|
# Look for a line like this:
|
|
# 54: 0000000000400474 4 OBJECT UNIQUE DEFAULT 13 a
|
|
|
|
if { ![regexp ".*\[ \]*OBJECT\[ \]+UNIQUE\[ \]+DEFAULT\[ \]+\[UND0-9\]+\[ \]+\[ab\]\n" [file_contents readelf.out]] } {
|
|
return 0
|
|
}
|
|
|
|
return 1
|
|
}
|
|
|
|
set fails 0
|
|
|
|
# Create object file containing unique symbol.
|
|
if ![ld_compile "$CC -c" "$srcdir/$subdir/unique.s" "tmpdir/unique.o"] {
|
|
fail "Could not create a unique object"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create object file NOT containing unique symbol.
|
|
if ![ld_compile "$CC -c" "$srcdir/$subdir/unique_empty.s" "tmpdir/unique_empty.o"] {
|
|
fail "Could not create a non-unique object"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create pic object file containing unique symbol.
|
|
if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/unique_shared.s" "tmpdir/unique_shared.o"] {
|
|
fail "Could not create a pic unique object"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create executable containing unique symbol.
|
|
if ![default_ld_link $ld "tmpdir/unique_prog" "tmpdir/unique.o"] {
|
|
fail "Could not link a unique executable"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create shared library containing unique symbol.
|
|
if ![ld_simple_link $ld "tmpdir/libunique_shared.so" "-shared tmpdir/unique_shared.o"] {
|
|
fail "Could not create a shared library containing an unique symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create executable NOT containing unique symbol linked against library.
|
|
if ![default_ld_link $ld "tmpdir/unique_shared_prog" "-Ltmpdir tmpdir/unique_empty.o -Bdynamic -lunique_shared -rpath ./tmpdir"] {
|
|
fail "Could not link a dynamic executable"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Create shared library containing unique symbol with reference.
|
|
if ![ld_simple_link $ld "tmpdir/libunique_shared_ref.so" "-shared tmpdir/unique_shared.o tmpdir/unique_empty.o"] {
|
|
fail "Could not create a shared library containing an unique symbol with reference"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails != 0 } {
|
|
return
|
|
}
|
|
|
|
# Check the object file.
|
|
if {! [check_osabi tmpdir/unique.o {UNIX - GNU}]} {
|
|
fail "Object containing unique does not have an OS/ABI field of GNU"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/unique.o] != 1} {
|
|
fail "Object containing unique does not contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking unique object"
|
|
}
|
|
|
|
# Check the executable.
|
|
if {! [check_osabi tmpdir/unique_prog {UNIX - GNU}]} {
|
|
fail "Executable containing unique does not have an OS/ABI field of GNU"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/unique_prog] != 1} {
|
|
fail "Executable containing unique does not contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking unique executable"
|
|
}
|
|
|
|
# Check the empty object file.
|
|
if {! [check_osabi tmpdir/unique_empty.o {UNIX - System V}]} {
|
|
fail "Object NOT containing unique does not have an OS/ABI field of System V"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/unique_empty.o] == 1} {
|
|
fail "Object NOT containing unique does contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking empty unique object"
|
|
}
|
|
|
|
# Check the unique PIC file.
|
|
if {! [check_osabi tmpdir/unique_shared.o {UNIX - GNU}]} {
|
|
fail "PIC Object containing unique does not have an OS/ABI field of GNU"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/unique_shared.o] != 1} {
|
|
fail "PIC Object containing unique does not contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking unique PIC object"
|
|
}
|
|
|
|
# Check the unique shared library.
|
|
if {! [check_osabi tmpdir/libunique_shared.so {UNIX - GNU}]} {
|
|
fail "Shared library containing unique does not have an OS/ABI field of GNU"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/libunique_shared.so] != 1} {
|
|
fail "Shared library containing unique does not contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
# Check the unique shared library with reference.
|
|
if {! [check_osabi tmpdir/libunique_shared_ref.so {UNIX - GNU}]} {
|
|
fail "Shared library containing unique with reference does not have an OS/ABI field of GNU"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/libunique_shared_ref.so] != 1} {
|
|
fail "Shared library containing unique with reference does not contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking unique PIC object"
|
|
}
|
|
|
|
# Check the empty executable linked against unique shared library.
|
|
if {! [check_osabi tmpdir/unique_shared_prog {UNIX - System V}]} {
|
|
fail "Executable NOT containing unique does not have an OS/ABI field of System V"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if {[contains_unique_symbol tmpdir/unique_shared_prog] == 1} {
|
|
fail "Executable NOT containing unique does contain an UNIQUE symbol"
|
|
set fails [expr $fails + 1]
|
|
}
|
|
|
|
if { $fails == 0 } {
|
|
pass "Checking shared empty executable"
|
|
}
|
|
|
|
# Clean up, unless we are being verbose, in which case we leave the files available.
|
|
if { $verbose < 1 } {
|
|
remote_file host delete "tmpdir/unique_empty.o"
|
|
remote_file host delete "tmpdir/unique.o"
|
|
remote_file host delete "tmpdir/unique_shared.o"
|
|
remote_file host delete "tmpdir/libunique_shared.so"
|
|
remote_file host delete "tmpdir/libunique_shared_ref.so"
|
|
remote_file host delete "tmpdir/unique_prog"
|
|
remote_file host delete "tmpdir/unique_shared_prog"
|
|
}
|