--- /dev/null
+# Expect script for linker support of STB_GNU_UNIQUE symbols
+#
+# Copyright 2009, 2010, 2011 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 "*-*-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]
+}
+
+if { $fails != 0 } {
+ return
+}
+
+# Check the object file.
+if {! [check_osabi tmpdir/unique.o {UNIX - Linux}]} {
+ fail "Object containing unique does not have an OS/ABI field of LINUX"
+ 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 - Linux}]} {
+ fail "Executable containing unique does not have an OS/ABI field of LINUX"
+ 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 - Linux}]} {
+ fail "PIC Object containing unique does not have an OS/ABI field of LINUX"
+ 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 - Linux}]} {
+ fail "Shared library containing unique does not have an OS/ABI field of LINUX"
+ 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]
+}
+
+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/unique_prog"
+ remote_file host delete "tmpdir/unique_shared_prog"
+}
projects / thirdparty / binutils-gdb.git / commitdiff
