--- /dev/null
+# Expect script for linker support of IFUNC symbols and relocations.
+#
+# Copyright 2009 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>
+
+
+# IFUNC support has only been implemented for the ix86, x86_64 and powerpc
+# so far.
+if {!(([istarget "i?86-*-*"]
+ || [istarget "x86_64-*-*"]
+ || [istarget "powerpc*-*-*"])
+ && ([istarget "*-*-elf*"]
+ || ([istarget "*-*-linux*"]
+ && ![istarget "*-*-*aout*"]
+ && ![istarget "*-*-*oldld*"]))) } {
+ verbose "IFUNC tests not run - target does not support IFUNC"
+ 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 "IFUNC 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 "IFUNC 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 IFUNC symbol.
+# Returns -1 upon error, 0 if the symbol was not found and 1 if it was found.
+proc contains_ifunc_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_ifunc_symbol: Readelf produced unexpected out processing $binary_file: $got"
+ return -1
+ }
+
+ # Look for a line like this:
+ # 58: 0000000000400600 30 IFUNC GLOBAL DEFAULT 12 library_func2
+
+ if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT\[ \]+\[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
+ return 0
+ }
+
+ return 1
+}
+
+# A procedure to confirm that a file contains the R_*_IRELATIVE
+# relocation.
+# Returns -1 upon error, 0 if the relocation was not found and 1 if
+# it was found.
+proc contains_irelative_reloc { binary_file } {
+ global READELF
+ global READELFFLAGS
+
+ catch "exec $READELF $READELFFLAGS --relocs --wide $binary_file > readelf.out" got
+
+ if ![string match "" $got] then {
+ verbose "proc contains_irelative_reloc: Readelf produced unexpected out processing $binary_file: $got"
+ return -1
+ }
+
+ # Look for a line like this:
+ # 0000000000600ab0 0000000000000025 R_X86_64_IRELATIVE 000000000040061c
+ # 080496f4 0000002a R_386_IRELATIVE
+
+
+ if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_\[_0-9A-Z\]+_IREL(|ATIVE)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
+ return 0
+ }
+
+ return 1
+}
+
+# A procedure to confirm that a file contains a relocation that references an IFUNC symbol.
+# Returns -1 upon error, 0 if the reloc was not found and 1 if it was found.
+proc contains_ifunc_reloc { binary_file } {
+ global READELF
+ global READELFFLAGS
+
+ catch "exec $READELF $READELFFLAGS --relocs $binary_file > readelf.out" got
+
+ if ![string match "" $got] then {
+ verbose "proc contains_ifunc_reloc: Readelf produced unexpected out processing $binary_file: $got"
+ return -1
+ }
+
+ if [string match "" [file_contents readelf.out]] then {
+ verbose "No relocs found in $binary_file"
+ return 0
+ }
+
+ if { ![regexp "\\(\\)" [file_contents readelf.out]] } {
+ return 0
+ }
+
+ return 1
+}
+
+set fails 0
+
+# Create the object files, libraries and executables.
+if ![ld_compile "$CC -c -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
+ fail "Could not create a PIC object file"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -c" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
+ fail "Could not create a non-PIC object file"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -c -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
+ fail "Could not create a PIC object file containing an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -c -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
+ fail "Could not create a non-PIC object file containing an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -c -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
+ fail "Could not create an ordinary non-PIC object file"
+ set fails [expr $fails + 1]
+}
+if ![ld_assemble $as "$srcdir/ld-elf/empty.s" "tmpdir/empty.o"] {
+ fail "Could not create an empty object file"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -c" "$srcdir/$subdir/test-1.c" "tmpdir/test-1.o"] {
+ fail "Could not create test-1.o"
+ set fails [expr $fails + 1]
+}
+if ![ld_compile "$CC -fPIC -c" "$srcdir/$subdir/test-2.c" "tmpdir/test-2.o"] {
+ fail "Could not create test-2.o"
+ set fails [expr $fails + 1]
+}
+
+if { $fails != 0 } {
+ return
+}
+
+if ![ld_simple_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
+ fail "Could not create a shared library containing an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if ![ar_simple_create $ar "" "tmpdir/libifunc.a" "tmpdir/static_ifunc.o"] {
+ fail "Could not create a static library containing an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+
+if { $fails != 0 } {
+ return
+}
+
+if ![default_ld_link $ld "tmpdir/dynamic_prog" "-Ltmpdir tmpdir/shared_prog.o -Bdynamic -lshared_ifunc -rpath ./tmpdir"] {
+ fail "Could not link a dynamic executable"
+ set fails [expr $fails + 1]
+}
+if ![default_ld_link $ld "tmpdir/local_prog" "-Ltmpdir tmpdir/static_prog.o -lifunc"] {
+ fail "Could not link a dynamic executable using local ifunc"
+ set fails [expr $fails + 1]
+}
+if ![default_ld_link $ld "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
+ fail "Could not link a static executable"
+ set fails [expr $fails + 1]
+}
+if ![ld_simple_link $ld "tmpdir/static_nonifunc_prog" "-static tmpdir/empty.o"] {
+ fail "Could not link a non-ifunc using static executable"
+ set fails [expr $fails + 1]
+}
+if ![default_ld_link $ld "tmpdir/test-1" "tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
+ fail "Could not link test-1"
+ set fails [expr $fails + 1]
+}
+if ![ld_simple_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
+ fail "Could not link libtest-2.so"
+ set fails [expr $fails + 1]
+}
+
+if { $fails == 0 } {
+ pass "Building ifunc binaries"
+ set fails 0
+} else {
+ return
+}
+
+# Check the executables and shared libraries
+#
+# The linked ifunc using executables and the shared library containing
+# ifunc should have an OSABI field of LINUX. The linked non-ifunc using
+# executable should have an OSABI field of NONE (aka System V).
+
+if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - Linux}]} {
+ fail "Shared libraries containing ifunc does not have an OS/ABI field of LINUX"
+ set fails [expr $fails + 1]
+}
+if {! [check_osabi tmpdir/local_prog {UNIX - Linux}]} {
+ fail "Local ifunc-using executable does not have an OS/ABI field of LINUX"
+ set fails [expr $fails + 1]
+}
+if {! [check_osabi tmpdir/static_prog {UNIX - Linux}]} {
+ fail "Static ifunc-using executable does not have an OS/ABI field of LINUX"
+ set fails [expr $fails + 1]
+}
+if {! [check_osabi tmpdir/dynamic_prog {UNIX - Linux}]} {
+ fail "Dynamic ifunc-using executable does not have an OS/ABI field of LINUX"
+ set fails [expr $fails + 1]
+}
+if {! [check_osabi tmpdir/static_nonifunc_prog {UNIX - System V}]} {
+ fail "Static non-ifunc-using executable does not have an OS/ABI field of System V"
+ set fails [expr $fails + 1]
+}
+
+# The linked ifunc using executables and the shared library containing
+# ifunc should contain an IFUNC symbol. The non-ifunc using executable
+# should not.
+
+if {[contains_ifunc_symbol tmpdir/libshared_ifunc.so] != 1} {
+ fail "Shared libraries containing ifunc does not contain an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/local_prog] != 1} {
+ fail "Local ifunc-using executable does not contain an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/static_prog] != 1} {
+ fail "Static ifunc-using executable does not contain an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/dynamic_prog] != 0} {
+ fail "Dynamic ifunc-using executable contains an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/static_nonifunc_prog] != 0} {
+ fail "Static non-ifunc-using executable contains an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/test-1] != 0} {
+ fail "test-1 contains IFUNC symbols"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_symbol tmpdir/libtest-2.so] != 0} {
+ fail "libtest-2.so contains IFUNC symbols"
+ set fails [expr $fails + 1]
+}
+
+# The linked ifunc using executables and shared libraries should contain
+# a dynamic reloc referencing the IFUNC symbol. (Even the static
+# executable which should have a dynamic section created for it). The
+# non-ifunc using executable should not.
+
+if {[contains_irelative_reloc tmpdir/libshared_ifunc.so] != 1} {
+ fail "ifunc-using shared library does not contain R_*_IRELATIVE relocation"
+ set fails [expr $fails + 1]
+}
+if {[contains_irelative_reloc tmpdir/local_prog] != 1} {
+ fail "Local ifunc-using executable does not contain R_*_IRELATIVE relocation"
+ set fails [expr $fails + 1]
+}
+if {[contains_irelative_reloc tmpdir/static_prog] != 1} {
+ fail "Static ifunc-using executable does not contain R_*_IRELATIVE relocation"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_reloc tmpdir/dynamic_prog] != 0} {
+ fail "Dynamic ifunc-using executable contains a reloc against an IFUNC symbol"
+ set fails [expr $fails + 1]
+}
+if {[contains_ifunc_reloc tmpdir/static_nonifunc_prog] == 1} {
+ fail "Static non-ifunc-using executable contains a reloc against an IFUNC symbol!"
+ set fails [expr $fails + 1]
+}
+
+if { $fails == 0 } {
+ pass "Checking ifunc binaries"
+}
+
+# Clean up, unless we are being verbose, in which case we leave the files available.
+if { $verbose < 1 } {
+ remote_file host delete "tmpdir/shared_prog.o"
+ remote_file host delete "tmpdir/static_prog.o"
+ remote_file host delete "tmpdir/shared_ifunc.o"
+ remote_file host delete "tmpdir/static_ifunc.o"
+ remote_file host delete "tmpdir/static_noifunc.o"
+ remote_file host delete "tmpdir/libshared_ifunc.so"
+ remote_file host delete "tmpdir/libifunc.a"
+ remote_file host delete "tmpdir/dynamic_prog"
+ remote_file host delete "tmpdir/local_prog"
+ remote_file host delete "tmpdir/static_prog"
+ remote_file host delete "tmpdir/static_nonifunc_prog"
+}
+
+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]
+}
projects / msp430-binutils.git / blobdiff