# Expect script for linker support of IFUNC symbols and relocations.
#
-# Copyright 2009 Free Software Foundation, Inc.
+# Copyright (C) 2009-2017 Free Software Foundation, Inc.
# Contributed by Red Hat.
#
# This file is part of the GNU Binutils.
# Written by Nick Clifton <nickc@redhat.com>
-# IFUNC support has only been implemented for the x86_64 and ix86 so far.
-if {! ( [istarget "x86_64-*-elf*"]
- || [istarget "x86_64-*-linux*"]
- || [istarget "i?86-*-elf*"]
- || [istarget "i?86-*-linux*"]) } {
+# IFUNC support has only been implemented for the ix86, x86_64, powerpc,
+# aarch64, sparc, and S/390 so far.
+if {!(([istarget "i?86-*-*"]
+ || [istarget "x86_64-*-*"]
+ || [istarget "powerpc*-*-*"]
+ || [istarget "aarch64*-*-*"]
+ || [istarget "sparc*-*-*"]
+ || [istarget "s390*-*-*"])
+ && ([istarget "*-*-elf*"]
+ || [istarget "*-*-nacl*"]
+ || (([istarget "*-*-linux*"]
+ || [istarget "*-*-gnu*"])
+ && ![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"
+# Skip targets where -shared is not supported
+
+if ![check_shared_lib_support] {
return
}
}
verbose "Expected OSABI: $expected_osabi, Obtained osabi: $osabi"
-
+
return 0
}
# Look for a line like this:
# 58: 0000000000400600 30 IFUNC GLOBAL DEFAULT 12 library_func2
+ # with perhaps some other info between the visibility and section
- if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT\[ \]+\[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
+ if { ![regexp ".*\[ \]*IFUNC\[ \]+GLOBAL\[ \]+DEFAULT .* \[UND0-9\]+\[ \]+library_func2\n" [file_contents readelf.out]] } {
return 0
}
# 080496f4 0000002a R_386_IRELATIVE
- if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_\[_0-9A-Z\]+_IRELATIVE\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
+ if { ![regexp "\[0-9a-f\]+\[ \]+\[0-9a-f\]+\[ \]+R_\[_0-9A-Z\]+_IREL(|ATIVE)\[ \]*\[0-9a-f\]*\n" [file_contents readelf.out]] } {
return 0
}
set fails 0
# Create the object files, libraries and executables.
-if ![ld_compile "$CC -c -shared -fPIC" "$srcdir/$subdir/prog.c" "tmpdir/shared_prog.o"] {
- fail "Could not create a shared object file"
+if ![ld_compile "$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 -static" "$srcdir/$subdir/prog.c" "tmpdir/static_prog.o"] {
- fail "Could not create a static object file"
+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 $fails + 1]
}
-if ![ld_compile "$CC -c -shared -fPIC -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/shared_ifunc.o"] {
- fail "Could not create an object file containing an IFUNC symbol"
+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 -static -DWITH_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_ifunc.o"] {
- fail "Could not create a static object file containing an IFUNC symbol"
+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 -c -static -DWITHOUT_IFUNC" "$srcdir/$subdir/lib.c" "tmpdir/static_noifunc.o"] {
- fail "Could not create an ordinary static object file"
+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]
}
return
}
-if ![ld_simple_link $ld "tmpdir/libshared_ifunc.so" "-shared tmpdir/shared_ifunc.o"] {
+if ![ld_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]
}
return
}
-if ![default_ld_link $ld "tmpdir/dynamic_prog" "-Ltmpdir tmpdir/shared_prog.o -Bdynamic -lshared_ifunc -rpath ./tmpdir"] {
+if ![ld_link $CC "tmpdir/dynamic_prog" "-Wl,--no-as-needed,-rpath=./tmpdir,-Bdynamic -Ltmpdir tmpdir/shared_prog.o -lshared_ifunc"] {
fail "Could not link a dynamic executable"
set fails [expr $fails + 1]
}
-if ![default_ld_link $ld "tmpdir/static_prog" "-Ltmpdir tmpdir/static_prog.o -lifunc"] {
+if ![ld_link $CC "tmpdir/local_prog" "-Wl,--no-as-needed,-rpath=./tmpdir -Ltmpdir tmpdir/static_prog.o -lifunc"] {
+ fail "Could not link a dynamic executable using local ifunc"
+ set fails [expr $fails + 1]
+}
+if ![ld_link $CC "tmpdir/static_prog" "-static -Ltmpdir tmpdir/static_prog.o -lifunc"] {
fail "Could not link a static executable"
set fails [expr $fails + 1]
}
-if ![default_ld_link $ld "tmpdir/static_nonifunc_prog" "-Ltmpdir tmpdir/static_prog.o tmpdir/static_noifunc.o"] {
+if ![ld_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 ![ld_link $CC "tmpdir/test-1" "-Wl,--no-as-needed,-rpath=./tmpdir tmpdir/test-1.o tmpdir/libshared_ifunc.so"] {
+ fail "Could not link test-1"
+ set fails [expr $fails + 1]
+}
+if ![ld_link $ld "tmpdir/libtest-2.so" "-shared tmpdir/test-2.o"] {
+ fail "Could not link libtest-2.so"
+ set fails [expr $fails + 1]
+}
+if ![ld_link $ld "tmpdir/libtest-2-now.so" "-shared -z now tmpdir/test-2.o"] {
+ fail "Could not link libtest-2-now.so"
+ set fails [expr $fails + 1]
+}
if { $fails == 0 } {
pass "Building ifunc binaries"
# 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
+# ifunc should have an OSABI field of GNU. 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"
+case $target_triplet in {
+ { hppa*-*-linux* } { set expected_none {UNIX - GNU} }
+ default { set expected_none {UNIX - System V} }
+}
+
+if {! [check_osabi tmpdir/libshared_ifunc.so {UNIX - GNU}]} {
+ fail "Shared libraries containing ifunc does not have an OS/ABI field of GNU"
+ set fails [expr $fails + 1]
+}
+if {! [check_osabi tmpdir/local_prog {UNIX - GNU}]} {
+ fail "Local ifunc-using executable does not have an OS/ABI field of GNU"
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"
+if {! [check_osabi tmpdir/static_prog {UNIX - GNU}]} {
+ fail "Static ifunc-using executable does not have an OS/ABI field of GNU"
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"
+if {! [check_osabi tmpdir/dynamic_prog $expected_none]} {
+ fail "Dynamic ifunc-using executable does not have an OS/ABI field of $expected_none"
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"
+if {! [check_osabi tmpdir/static_nonifunc_prog $expected_none]} {
+ fail "Static non-ifunc-using executable does not have an OS/ABI field of $expected_none"
set fails [expr $fails + 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] != 1} {
- fail "Dynamic ifunc-using executable does not contain an IFUNC symbol"
+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]
+}
+if {[contains_ifunc_symbol tmpdir/libtest-2-now.so] != 0} {
+ fail "libtest-2-now.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
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] != 1} {
- fail "Dynamic ifunc-using executable does not contain a reloc against an IFUNC symbol"
+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} {
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/static_prog"
- remote_file host delete "tmpdir/static_nonifunc_prog"
-}
+run_cc_link_tests [list \
+ [list \
+ "Build libpr16467a.so" \
+ "-shared -Wl,--version-script=pr16467a.map" \
+ "-fPIC" \
+ { pr16467a.c } \
+ {} \
+ "libpr16467a.so" \
+ ] \
+ [list \
+ "Build libpr16467b.a" \
+ "" \
+ "-fPIC" \
+ { pr16467b.c } \
+ {} \
+ "libpr16467b.a" \
+ ] \
+ [list \
+ "Build libpr16467b.so" \
+ "-shared tmpdir/pr16467b.o tmpdir/libpr16467a.so \
+ -Wl,--version-script=pr16467b.map" \
+ "-fPIC" \
+ { dummy.c } \
+ {} \
+ "libpr16467b.so" \
+ ] \
+ [list \
+ "Build libpr16467c.a" \
+ "" \
+ "" \
+ { pr16467c.c } \
+ {} \
+ "libpr16467c.a" \
+ ] \
+ [list \
+ "Build libpr16467an.so" \
+ "-shared -Wl,-z,now -Wl,--version-script=pr16467a.map" \
+ "-fPIC" \
+ { pr16467a.c } \
+ {} \
+ "libpr16467an.so" \
+ ] \
+ [list \
+ "Build libpr16467bn.so" \
+ "-shared tmpdir/pr16467b.o tmpdir/libpr16467an.so \
+ -Wl,--version-script=pr16467b.map" \
+ "-fPIC" \
+ { dummy.c } \
+ {} \
+ "libpr16467bn.so" \
+ ] \
+]
+
+run_ld_link_exec_tests [list \
+ [list \
+ "Common symbol override ifunc test 1a" \
+ "-static" \
+ "" \
+ { ifunc-common-1a.c ifunc-common-1b.c } \
+ "ifunc-common-1a" \
+ "ifunc-common-1.out" \
+ "-g" \
+ ] \
+ [list \
+ "Common symbol override ifunc test 1b" \
+ "-static" \
+ "" \
+ { ifunc-common-1b.c ifunc-common-1a.c } \
+ "ifunc-common-1b" \
+ "ifunc-common-1.out" \
+ "-g" \
+ ] \
+]
set test_list [lsort [glob -nocomplain $srcdir/$subdir/*.d]]
foreach t $test_list {
verbose [file rootname $t]
run_dump_test [file rootname $t]
}
+
+# Run-time tests which require working IFUNC support.
+if { ![check_ifunc_available] } {
+ return
+}
+
+run_cc_link_tests [list \
+ [list \
+ "Build ifunc-lib.so" \
+ "-shared" \
+ "-fPIC" \
+ { ifunc-lib.c } \
+ {} \
+ "libifunc-lib.so" \
+ ] \
+ [list \
+ "Build ifunc-libn.so" \
+ "-shared -Wl,-z,now" \
+ "-fPIC" \
+ { ifunc-lib.c } \
+ {} \
+ "libifunc-libn.so" \
+ ] \
+]
+
+run_ld_link_exec_tests [list \
+ [list \
+ "Run pr16467" \
+ "-Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467b.so tmpdir/libpr16467a.so" \
+ "" \
+ { dummy.c } \
+ "pr16467" \
+ "pr16467.out" \
+ "" \
+ ] \
+ [list \
+ "Run pr16467 (-z now)" \
+ "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr16467c.o tmpdir/libpr16467bn.so tmpdir/libpr16467an.so" \
+ "" \
+ { dummy.c } \
+ "pr16467n" \
+ "pr16467.out" \
+ "" \
+ ] \
+ [list \
+ "Run ifunc-main" \
+ "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
+ "" \
+ { ifunc-main.c } \
+ "ifunc-main" \
+ "ifunc-main.out" \
+ ] \
+ [list \
+ "Run ifunc-main with -fpic" \
+ "-Wl,--no-as-needed tmpdir/libifunc-lib.so" \
+ "" \
+ { ifunc-main.c } \
+ "ifunc-main" \
+ "ifunc-main.out" \
+ "-fpic" \
+ ] \
+ [list \
+ "Run ifunc-main (-z now)" \
+ "-Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
+ "" \
+ { ifunc-main.c } \
+ "ifunc-mainn" \
+ "ifunc-main.out" \
+ ] \
+ [list \
+ "Run ifunc-main with PIE (-z now)" \
+ "-pie -Wl,-z,now -Wl,--no-as-needed tmpdir/libifunc-libn.so" \
+ "" \
+ { ifunc-main.c } \
+ "ifunc-mainpn" \
+ "ifunc-main.out" \
+ "-fpie" \
+ ] \
+]
+
+# Run-time tests which require working ifunc attribute support.
+if { ![check_ifunc_attribute_available] } {
+ return
+}
+
+run_cc_link_tests [list \
+ [list \
+ "Build pr18808a.o" \
+ "" \
+ "" \
+ { pr18808a.c } \
+ "" \
+ "" \
+ ] \
+ [list \
+ "Build libpr18808.so" \
+ "-shared" \
+ "-fPIC -O2 -g" \
+ { pr18808b.c } \
+ {} \
+ "libpr18808.so" \
+ ] \
+ [list \
+ "Build libpr18808n.so" \
+ "-shared -Wl,-z,now" \
+ "-fPIC -O2 -g" \
+ { pr18808b.c } \
+ {} \
+ "libpr18808n.so" \
+ ] \
+ [list \
+ "Build pr18841a.o" \
+ "" \
+ "" \
+ { pr18841a.c } \
+ "" \
+ "" \
+ ] \
+ [list \
+ "Build libpr18841b.so" \
+ "-shared" \
+ "-fPIC -O0 -g" \
+ { pr18841b.c } \
+ {} \
+ "libpr18841b.so" \
+ ] \
+ [list \
+ "Build libpr18841c.so" \
+ "-shared" \
+ "-fPIC -O0 -g" \
+ { pr18841c.c } \
+ {} \
+ "libpr18841c.so" \
+ ] \
+ [list \
+ "Build libpr18841bn.so" \
+ "-Wl,-z,now -shared" \
+ "-fPIC -O0 -g" \
+ { pr18841b.c } \
+ {} \
+ "libpr18841bn.so" \
+ ] \
+ [list \
+ "Build libpr18841cn.so" \
+ "-shared" \
+ "-Wl,-z,now -fPIC -O0 -g" \
+ { pr18841c.c } \
+ {} \
+ "libpr18841cn.so" \
+ ] \
+]
+
+run_ld_link_exec_tests [list \
+ [list \
+ "Run pr18808" \
+ "-Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808.so" \
+ "" \
+ { dummy.c } \
+ "pr18808" \
+ "pr18808.out" \
+ ] \
+ [list \
+ "Run pr18808 (-z now)" \
+ "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18808a.o tmpdir/libpr18808n.so" \
+ "" \
+ { dummy.c } \
+ "pr18808n" \
+ "pr18808.out" \
+ ] \
+ [list \
+ "Run pr18841 with libpr18841b.so" \
+ "-Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841b.so" \
+ "" \
+ { dummy.c } \
+ "pr18841b" \
+ "pr18841.out" \
+ ] \
+ [list \
+ "Run pr18841 with libpr18841c.so" \
+ "-Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841c.so" \
+ "" \
+ { dummy.c } \
+ "pr18841c" \
+ "pr18841.out" \
+ ] \
+ [list \
+ "Run pr18841 with libpr18841bn.so (-z now)" \
+ "-Wl,-z,now -Wl,--no-as-needed tmpdir/pr18841a.o tmpdir/libpr18841bn.so" \
+ "" \
+ { dummy.c } \
+ "pr18841bn" \
+ "pr18841.out" \
+ ] \
+ [list \
+ "Run pr18841 with libpr18841cn.so (-z now)" \
+ "-Wl,-z,now -Wl,--as-needed tmpdir/pr18841a.o tmpdir/libpr18841cn.so" \
+ "" \
+ { dummy.c } \
+ "pr18841cn" \
+ "pr18841.out" \
+ ] \
+]
projects / deliverable / binutils-gdb.git / blobdiff