3d9499950a
R_386_GOTOFF/R_X86_64_GOTOFF64 relocation shouldn't be used against protected data symbol on x86 since with copy relocation, address of protected data defined in the shared library may be external. This patch will break building shared libraries with protected data symbols using GCCs older than GCC 5 without the bug fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65248 GCC backport request should be made in the GCC bug report above. bfd/ PR ld/pr17709 * elf32-i386.c (elf_i386_relocate_section): Also check R_386_GOTOFF against protected data symbol when building shared library. * elf64-x86-64.c (elf_x86_64_relocate_section): Also check R_X86_64_GOTOFF64 against protected data symbol when building shared library. ld/testsuite/ PR ld/pr17709 * ld-i386/protected6.d: New file. * ld-i386/protected6.s: Likewise. * ld-x86-64/protected6.d: Likewise. * ld-x86-64/protected6.s: Likewise. * ld-x86-64/protected7.d: Likewise. * ld-x86-64/protected7.s: Likewise. * ld-x86-64/protected7a.d: Likewise. * ld-x86-64/protected7b.d: Likewise.
360 lines
11 KiB
Text
360 lines
11 KiB
Text
# Expect script for ld-i386 tests
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# Copyright (C) 2002-2015 Free Software Foundation, Inc.
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#
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# This file is part of the GNU Binutils.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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# Test i386 linking; all types of relocs. This tests the assembler and
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# tools like objdump as well as the linker.
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if {[istarget "i?86-*-vxworks"]} {
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set i386tests {
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{"VxWorks shared library test 1" "-shared -Tvxworks1.ld" ""
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"" {vxworks1-lib.s}
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{{readelf --relocs vxworks1-lib.rd} {objdump -dr vxworks1-lib.dd}
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{readelf --symbols vxworks1-lib.nd} {readelf -d vxworks1-lib.td}}
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"libvxworks1.so"}
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{"VxWorks executable test 1 (dynamic)" \
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"tmpdir/libvxworks1.so -Tvxworks1.ld -q --force-dynamic" ""
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"" {vxworks1.s}
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{{readelf --relocs vxworks1.rd} {objdump -dr vxworks1.dd}}
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"vxworks1"}
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{"VxWorks executable test 2 (dynamic)" \
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"-Tvxworks1.ld -q --force-dynamic" ""
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"" {vxworks2.s}
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{{readelf --segments vxworks2.sd}}
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"vxworks2"}
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{"VxWorks executable test 2 (static)"
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"-Tvxworks1.ld" ""
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"" {vxworks2.s}
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{{readelf --segments vxworks2-static.sd}}
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"vxworks2"}
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}
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run_ld_link_tests $i386tests
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run_dump_test "vxworks1-static"
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}
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if [istarget "*-*-go32*"] {
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run_ld_link_tests {{"go32 stub" "" "" "" {zero.s} {} "go32stub"}}
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set src "tmpdir/go32stub"
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set dest "tmpdir/go32stub-copy"
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set test "go32 stub patch the source"
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set fi [open $src r+]
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fconfigure $fi -translation binary
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if {[read $fi 2] != "MZ"} {
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fail $test
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} else {
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pass $test
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seek $fi 0x40
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puts -nonewline $fi "objcopy-test-go32stub"
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}
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close $fi
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set test "go32 stub objcopy"
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set status [remote_exec build $OBJCOPY "$OBJCOPYFLAGS $src $dest"]
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set exec_output [lindex $status 1]
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set exec_output [prune_warnings $exec_output]
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if [string match "" $exec_output] then {
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pass $test
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} else {
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send_log "$exec_output\n"
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verbose "$exec_output" 1
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fail $test
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}
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# cmp would compare the whole files and some data after the initial exe
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# stub could differ.
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set test "go32 stub comparison after objcopy"
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set fi [open $src]
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fconfigure $fi -translation binary
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set src_stub [read $fi 2048]
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close $fi
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set fi [open $dest]
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fconfigure $fi -translation binary
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set dest_stub [read $fi 2048]
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close $fi
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if {$src_stub == $dest_stub} {
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pass $test
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} else {
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fail $test
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}
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}
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if { !([istarget "i?86-*-elf*"]
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|| (([istarget "i?86-*-linux*"]
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|| [istarget "i?86-*-gnu*"])
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&& ![istarget "*-*-*aout*"]
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&& ![istarget "*-*-*oldld*"])
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|| [istarget "i?86-*-nacl*"]
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|| [istarget "x86_64-*-nacl*"]
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|| [istarget "x86_64-*-linux*"]
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|| [istarget "amd64-*-linux*"]) } {
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return
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}
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# List contains test-items with 3 items followed by 2 lists:
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# 0:name 1:ld early options 2:ld late options 3:assembler options
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# 4:filenames of assembler files 5: action and options. 6: name of output file
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# Actions:
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# objdump: Apply objdump options on result. Compare with regex (last arg).
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# nm: Apply nm options on result. Compare with regex (last arg).
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# readelf: Apply readelf options on result. Compare with regex (last arg).
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set i386tests {
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{"Helper shared library (basic PLT test)"
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"-shared -melf_i386" "" "--32" {pltlib.s} {} "libpltlib.so"}
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{"basic PLT generation (non-PIC)"
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"-melf_i386 tmpdir/libpltlib.so" "" "--32" {plt.s}
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{{objdump -drj.plt plt.pd}} "plt"}
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{"basic PLT generation (PIC)"
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"-shared -melf_i386 tmpdir/libpltlib.so" "" "--32" {plt-pic.s}
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{{objdump -drj.plt plt-pic.pd}} "libplt-pic.so"}
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{"TLS -fpic -shared transitions"
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"-shared -melf_i386 --no-ld-generated-unwind-info" ""
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"--32" {tlspic1.s tlspic2.s}
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{{readelf -Ssrl tlspic.rd} {objdump -drj.text tlspic.dd}
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{objdump -sj.got tlspic.sd} {objdump -sj.tdata tlspic.td}}
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"libtlspic.so"}
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{"TLS descriptor -fpic -shared transitions"
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"-shared -melf_i386 --no-ld-generated-unwind-info" ""
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"--32" {tlsdesc.s tlspic2.s}
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{{readelf -Ssrl tlsdesc.rd} {objdump -drj.text tlsdesc.dd}
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{objdump "-s -j.got -j.got.plt" tlsdesc.sd} {objdump -sj.tdata tlsdesc.td}}
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"libtlsdesc.so"}
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{"Helper shared library" "-shared -melf_i386" ""
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"--32" {tlslib.s} {} "libtlslib.so"}
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{"TLS -fpic and -fno-pic exec transitions"
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"-melf_i386 tmpdir/libtlslib.so --no-ld-generated-unwind-info" ""
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"--32" {tlsbinpic.s tlsbin.s}
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{{readelf -Ssrl tlsbin.rd} {objdump -drj.text tlsbin.dd}
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{objdump -sj.got tlsbin.sd} {objdump -sj.tdata tlsbin.td}}
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"tlsbin"}
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{"TLS descriptor -fpic and -fno-pic exec transitions"
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"-melf_i386 tmpdir/libtlslib.so --no-ld-generated-unwind-info" ""
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"--32" {tlsbindesc.s tlsbin.s}
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{{readelf -Ssrl tlsbindesc.rd} {objdump -drj.text tlsbindesc.dd}
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{objdump -sj.got tlsbindesc.sd} {objdump -sj.tdata tlsbindesc.td}}
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"tlsbindesc"}
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{"TLS -fno-pic -shared"
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"-shared -melf_i386 --no-ld-generated-unwind-info" ""
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"--32" {tlsnopic1.s tlsnopic2.s}
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{{readelf -Ssrl tlsnopic.rd} {objdump -drj.text tlsnopic.dd}
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{objdump -sj.got tlsnopic.sd}} "libtlsnopic.so"}
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{"TLS with global dynamic and descriptors"
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"-shared -melf_i386 --no-ld-generated-unwind-info" ""
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"--32" {tlsgdesc.s}
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{{readelf -Ssrl tlsgdesc.rd} {objdump -drj.text tlsgdesc.dd}}
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"libtlsgdesc.so"}
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{"TLS in debug sections" "-melf_i386" ""
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"--32" {tlsg.s}
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{{objdump -sj.debug_foobar tlsg.sd}} "tlsg"}
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{"TLS @indntpoff with %eax" "-melf_i386" "" "--32" {tlsindntpoff.s}
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{{objdump -drj.text tlsindntpoff.dd}} "tlsindntpoff"}
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{"Reloc section order" "-shared -melf_i386 -z nocombreloc" "" "--32"
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{reloc.s} {{objdump -hw reloc.d}} "reloc.so"}
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{"Basic --emit-relocs support" "-shared -melf_i386 --emit-relocs" "" "--32"
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{emit-relocs.s} {{readelf --relocs emit-relocs.rd}} "emit-relocs.so"}
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{"-z combreloc relocation sections" "-shared -melf_i386 -z combreloc" ""
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"--32" {combreloc.s} {{readelf -r combreloc.d}} "combreloc.so"}
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{"TLS GD->LE transition" "-melf_i386" ""
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"--32" {tlsgd1.s}
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{{objdump -dwr tlsgd1.dd}} "tlsgd1"}
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{"TLS LD->LE transition" "-melf_i386" ""
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"--32" {tlsld1.s}
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{{objdump -dwr tlsld1.dd}} "tlsld1"}
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{"TLS IE->LE transition" "-melf_i386" ""
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"--32" {tlsie1.s}
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{{objdump -dwr tlsie1.dd}} "tlsie1"}
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{"PR ld/17313 (1)" "-melf_i386" ""
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"--32" {zero.s} {} ""}
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{"PR ld/17313 (2)" "-melf_i386 -shared --just-symbols=tmpdir/zero.o" ""
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"--32" {lea1.s} {} "libpr17313.so"}
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{"PR ld/17306 (1)" "-melf_i386" ""
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"--32" {pr17306b.s} {} ""}
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{"PR ld/17306 (2)" "-melf_i386 -shared -Bsymbolic --just-symbols=tmpdir/pr17306b.o" ""
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"--32" {pr17306a.s} {} "libpr17306.so"}
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{"PR ld/17709 (1)" "-melf_i386 -shared" ""
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"--32" {pr17709a.s} {} "libpr17709.so"}
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{"PR ld/17709 (2)" "-melf_i386 tmpdir/libpr17709.so" ""
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"--32" {pr17709b.s} {{readelf -r pr17709.rd}} "pr17709"}
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}
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# So as to avoid rewriting every last test case here in a nacl variant,
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# we use black magic to massage the generic cases into nacl-variant cases.
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if [istarget "*-*-nacl*"] {
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# Change all the -melf_i386 to -melf_i386_nacl so linking can succeed.
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regsub -all elf_i386 $i386tests elf_i386_nacl i386tests
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# Same, applied to all the run_dump_test cases.
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set options_regsub(ld) {elf_i386 elf_i386_nacl}
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# The section/segment layout differs too much for the vanilla
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# readelf output files to match. So massage the cases so that
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# they refer to a foo-nacl.rd file instead of a foo.rd file.
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regsub -all {([a-z0-9]+)\.rd} $i386tests {\1-nacl.rd} i386tests
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# Likewise for PLTs.
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regsub -all -- {([a-z0-9]+)\.pd} $i386tests {\1-nacl.pd} i386tests
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}
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run_ld_link_tests $i386tests
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run_dump_test "abs"
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run_dump_test "pcrel8"
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run_dump_test "pcrel16"
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run_dump_test "pcrel16abs"
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run_dump_test "alloc"
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run_dump_test "warn1"
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run_dump_test "tlsgd2"
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run_dump_test "tlsie2"
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run_dump_test "tlsie3"
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run_dump_test "tlsie4"
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run_dump_test "tlsie5"
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run_dump_test "hidden1"
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run_dump_test "hidden2"
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run_dump_test "hidden3"
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run_dump_test "protected1"
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run_dump_test "protected2"
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run_dump_test "protected3"
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run_dump_test "protected4"
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run_dump_test "protected5"
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run_dump_test "protected6"
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run_dump_test "tlspie1"
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run_dump_test "tlspie2"
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run_dump_test "nogot1"
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run_dump_test "nogot2"
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run_dump_test "discarded1"
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run_dump_test "pr12718"
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run_dump_test "pr12921"
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run_dump_test "pr12570a"
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run_dump_test "pr12570b"
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run_dump_test "lea1a"
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run_dump_test "lea1b"
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run_dump_test "lea1c"
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run_dump_test "lea1d"
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run_dump_test "lea1e"
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run_dump_test "lea1f"
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run_dump_test "mov1a"
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run_dump_test "mov1b"
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if { !([istarget "i?86-*-linux*"]
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|| [istarget "i?86-*-gnu*"]
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|| [istarget "i?86-*-nacl*"]
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|| [istarget "x86_64-*-nacl*"]
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|| [istarget "x86_64-*-linux*"]) } {
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return
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}
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run_dump_test "compressed1"
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run_dump_test "pr12627"
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run_dump_test "pr13302"
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run_dump_test "pr14215"
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run_dump_test "pr17057"
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run_dump_test "pr17935-1"
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run_dump_test "pr17935-2"
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# Must be Linux native with the C compiler
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if { [isnative]
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&& [istarget "i?86-*-linux*"]
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&& [which $CC] != 0 } {
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run_cc_link_tests [list \
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[list \
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"Build plt-lib.so" \
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"-shared" \
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"-fPIC" \
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{ plt-lib.c } \
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{} \
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"libplt-lib.so" \
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] \
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[list \
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"Build libplt-main1.a" \
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"" \
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"-fPIC" \
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{ plt-main1.c } \
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{{readelf {-Wr} plt-main1.rd}} \
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"libplt-main1.a" \
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] \
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[list \
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"Build libplt-main2.a" \
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"" \
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"-fPIC" \
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{ plt-main2.c } \
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{{readelf {-Wr} plt-main2.rd}} \
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"libplt-main2.a" \
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] \
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[list \
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"Build libplt-main3.a" \
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"" \
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"-fPIC" \
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{ plt-main3.c } \
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{{readelf {-Wr} plt-main3.rd}} \
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"libplt-main3.a" \
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] \
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[list \
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"Build libplt-main4.a" \
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"" \
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"-fPIC" \
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{ plt-main4.c } \
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{{readelf {-Wr} plt-main4.rd}} \
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"libplt-main4.a" \
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] \
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[list \
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"Build plt-main" \
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"tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
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tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
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"" \
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{ plt-main5.c } \
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{{readelf {-Wr} plt-main.rd}} \
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"plt-main" \
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] \
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[list \
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"Build plt-main with PIE" \
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"tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
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tmpdir/plt-main4.o tmpdir/libplt-lib.so -pie" \
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"-fPIC" \
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{ plt-main5.c } \
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{{readelf {-Wr} plt-main.rd}} \
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"plt-main" \
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] \
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]
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run_ld_link_exec_tests [] [list \
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[list \
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"Run plt-main" \
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"tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
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tmpdir/plt-main4.o tmpdir/libplt-lib.so" \
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"" \
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{ plt-main5.c } \
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"plt-main" \
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"plt-main.out" \
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] \
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[list \
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"Run plt-main with PIE" \
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"tmpdir/plt-main1.o tmpdir/plt-main2.o tmpdir/plt-main3.o \
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tmpdir/plt-main4.o tmpdir/libplt-lib.so -pie" \
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"" \
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{ plt-main5.c } \
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"plt-main-pie" \
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"plt-main.out" \
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"-fPIC" \
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] \
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]
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}
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