commit eab996435f
Author: Jan Beulich <jbeulich@suse.com>
Date: Tue Nov 7 13:58:32 2023 +0100
ld/x86: reduce testsuite dependency on system object files
changed some C compiler tests to assembler/linker tests which introduced
2 problems:
1. It broke x32 binutils tests since --64 was passed to assembler, but
-m elf_x86_64 wasn't passed to linker.
2. -nostdlib was passed to C compiler driver to exclude standard run-time
files which should be avoided with -r option for linker tests.
Fix them by passing -m elf_x86_64 to linker and removing -nostdlib for
linker tests with -r.
PR ld/30722
* testsuite/ld-x86-64/x86-64.exp: Pass -m elf_x86_64 to linker
for tests with --64. Remove -nostdlib for tests with -r.
The tests are not compatible with ilp32 abi: the GNU property
note is ABI dependent (size changes) and the disasm is ABI
dependent too. Making the test portable between the ABIs is
not trivial.
For now force lp64 abi.
PR ld/30722
Tests looking for certain .note-section recorded properties may not
involve object files from the underlying platform (e.g. via using the C
compiler for linking): Such object files may themselves have similar
note sections, and hence they may influence the overall outcome.
For now convert just the tests known to be affected by crt*.o coming
with "ISA v3 needed" notes. Eventually other tests ought to be
converted, too.
PR 30865
* ld.texi: Update description of the FILL command.
* testsuite/ld-scripts/fill2.d: New test.
* testsuite/ld-scripts/fill2.t: New test source.
* testsuite/ld-scripts/data.exp: Run the new test.
* testsuite/ld-x86-64/property-3.r: Update regexp to allow for targets which support x86-64-v3.
* testsuite/ld-x86-64/property-4.r: Likewise.
* testsuite/ld-x86-64/property-5.r: Likewise.
PR 27565
* ldlex.l: Add REVERSE.
* ldgram.y: Allow REVERSE to be used wherever a sorting command can be used.
* ld.h (struct wildcard_spec): Add 'reversed' field.
* ldlang.h (lang_wild_statement_struct): Add 'filenames_reversed' field.
* ldlang.c (compare_sections): Add reversed parameter. (wild_sort): Reverse the comparison if requested. (print_wild_statement): Handle the reversed field.
* ld.texi: Document the new feature.
* NEWS: Mention the new feature.
* testsuite/ld-scripts/sort-file-reversed-1.d: New test driver.
* testsuite/ld-scripts/sort-file-reversed-1.t: New test source.
* testsuite/ld-scripts/sort-file-reversed-2.t: New test source.
* testsuite/ld-scripts/sort-file-reversed-2.d: New test driver.
* testsuite/ld-scripts/sort-sections-reversed-1.d: New test driver.
* testsuite/ld-scripts/sort-sections-reversed-1.t: New test source.
* testsuite/ld-scripts/sort-sections-reversed-2.t: New test source.
* testsuite/ld-scripts/sort-sections-reversed-2.d: New test driver.
* testsuite/ld-scripts/sort-sections-reversed-3.d: New test driver.
* testsuite/ld-scripts/sort-sections-reversed-3.t: New test source.
Up to now, the linker would always create a QNX stack note from scratch.
However, object files could already have such note, ending up into
duplicates. QNX loader doesn't handle that.
Update the mechanism to first search through the input files for a .note
section holding a QNX stack note. If none are found, then a new section
is created into the stub file as before. This requires this search to be
done once the file have been opened, moving the whole logic a bit later
in the emulation process.
As part for this update, also allow to request an executable stack
without necessarily having to provide its size as well. In this case, s
etup a default lazy stack of 0x1000.
ld/ChangeLog:
* emultempl/nto.em (nto_create_QNX_note_section): New Function.
(nto_lookup_QNX_note_section): New Function.
(nto_add_note_section): Move the creation of the note section
in the above new functions.
(nto_create_output_section_statements): rename nto_after_open
* testsuite/ld-aarch64/aarch64-nto.exp: add new test.
* testsuite/ld-aarch64/nto-stack-note-3.d: New test.
* testsuite/ld-aarch64/nto-stack-note.s: New test.
The PLT entry in executables and shared libraries contains an indirect
branch, like
jmp *foo@GOTPCREL(%rip)
push $index_foo
jmp .PLT0
or
endbr64
jmp *foo@GOTPCREL(%rip)
NOP padding
which is used to branch to the function, foo, defined in another object.
Each R_X86_64_JUMP_SLOT relocation has a corresponding PLT entry.
The dynamic tags have been added to the x86-64 psABI to mark such PLT
entries:
6d824a52a4
Add an x86-64 linker option, -z mark-plt, to mark PLT entries with
#define DT_X86_64_PLT (DT_LOPROC + 0)
#define DT_X86_64_PLTSZ (DT_LOPROC + 1)
#define DT_X86_64_PLTENT (DT_LOPROC + 3)
1. DT_X86_64_PLT: The address of the procedure linkage table.
2. DT_X86_64_PLTSZ: The total size, in bytes, of the procedure linkage
table.
3. DT_X86_64_PLTENT: The size, in bytes, of a procedure linkage table
entry.
and set the r_addend field of the R_X86_64_JUMP_SLOT relocation to the
memory offset of the indirect branch instruction. The dynamic linker
can use these tags to update the PLT section to direct branch.
bfd/
* elf-linker-x86.h (elf_linker_x86_params): Add mark_plt.
* elf64-x86-64.c (elf_x86_64_finish_dynamic_symbol): Set the
r_addend of R_X86_64_JUMP_SLOT to the indirect branch offset
in PLT entry for -z mark-plt.
* elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Add
DT_X86_64_PLT, DT_X86_64_PLTSZ and DT_X86_64_PLTENT for
-z mark-plt.
(_bfd_x86_elf_finish_dynamic_sections): Set DT_X86_64_PLT,
DT_X86_64_PLTSZ and DT_X86_64_PLTENT.
(_bfd_x86_elf_get_synthetic_symtab): Ignore addend for
JUMP_SLOT relocation.
(_bfd_x86_elf_link_setup_gnu_properties): Set
plt_indirect_branch_offset.
* elfxx-x86.h (elf_x86_plt_layout): Add plt_indirect_branch_offset.
binutils/
* readelf.c (get_x86_64_dynamic_type): New function.
(get_dynamic_type): Call get_x86_64_dynamic_type.
include/
* elf/x86-64.h (DT_X86_64_PLT): New.
(DT_X86_64_PLTSZ): Likewise.
(DT_X86_64_PLTENT): Likewise.
ld/
* ld.texi: Document -z mark-plt and -z nomark-plt.
* emulparams/elf32_x86_64.sh: Source x86-64-plt.sh.
* emulparams/elf_x86_64.sh: Likewise.
* emulparams/x86-64-plt.sh: New file.
* testsuite/ld-x86-64/mark-plt-1.s: Likewise.
* testsuite/ld-x86-64/mark-plt-1a-x32.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1a.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1b-x32.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1b.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1c-x32.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1c.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1d-x32.d: Likewise.
* testsuite/ld-x86-64/mark-plt-1d.d: Likewise.
* testsuite/ld-x86-64/x86-64.exp: Run -z mark-plt tests.
Move .got before .data so that it can be protected with -zrelro. Also
separate .got.plt from .got if -znow is not in effect; the first two words
of .got.plt are placed within the relro region.
ld:
PR ld/30877
* emulparams/elf32lriscv-defs.sh (DATA_GOT, SEPARATE_GOTPLT):
Define.
* emulparams/elf64lriscv-defs.sh (SEPARATE_GOTPLT): Define.
* testsuite/ld-elf/binutils.exp (binutils_test): Remove riscv*-*-*
from relro_got expression.
Error messages such as "conflicting CPU architectures 10/16" are not
very to understand, so this patch replaces the numbers with the
description they actually mean:
"conflicting CPU architectures ARM v7E-M vs Pre v4"
2023-09-01 Christophe Lyon <christophe.lyon@linaro.org>
bfd/
* elf32-arm.c (tag_cpu_arch_combine): Add name_table parameter and
use it.
(elf32_arm_merge_eabi_attributes): Update call to
tag_cpu_arch_combine.
ld/
* testsuite/ld-arm/attr-merge-9.out: Update expected error
message.
* testsuite/ld-arm/attr-merge-arch-2.d: Likewise.
For disassembly to only use spec-mandated aliases, respective non-alias
entries need to come ahead of their alias ones. Since identical
mnemonics need to stay together, whole groups are moved up where
necessary.
This partly reverts 839189bc93 ("RISC-V: re-arrange opcode table for
consistent alias handling"), but then also goes beyond a plain revert.
Reviewed-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Adjust PR ld/30791 tests:
1. Generic linker targets don't comply with all orhpan section merging
rules.
2. z80 fails since a, b, c, d are registers for z80.
3. hppa fails since .text sections aren't merged for relocatable link.
PR ld/30791
* testsuite/ld-elf/pr30791a.d: Xfail for generic and z80
targets.
* testsuite/ld-elf/pr30791b.d: Xfail for hppa and z80 targets.
If a linker script does not place the PLT relocations and "normal"
relocations in separate ELF sections, `ld` will currently output incorrect
values for DT_JMPREL and DT_PLTRELSZ - they cover the entire ELF section,
rather than just the PLT relocations
Don't ignore the extent of the BFD section - use the size of the srelplt
BFD section and its offset from the output_secttion
bfd/
PR ld/30787
* elfxx-x86.c (_bfd_x86_elf_finish_dynamic_sections): Use input
section for DT_JMPREL and DT_PLTRELSZ.
ld/
PR ld/30787
* testsuite/ld-i386/i386.exp: Run pr30787.
* testsuite/ld-x86-64/x86-64.exp: Likewise.
* testsuite/ld-i386/pr30787.d: New file.
* testsuite/ld-i386/pr30787.s: Likewise.
* testsuite/ld-i386/pr30787.t: Likewise.
* testsuite/ld-x86-64/pr30787.d: Likewise.
* testsuite/ld-x86-64/pr30787.s: Likewise.
* testsuite/ld-x86-64/pr30787.t: Likewise.
If we're using dump_prog in a test which fails, log the dump.out contents
to ld.log to aid debugging.
This avoids needing to ask reporters to manually run e.g. `objdump` commands
when making bug reports.
PR30722
* ld/testsuite/lib/ld-lib.exp: Log failed dump.out contents to aid
debugging.
Approved-by: Nick Clifton <nickc@redhat.com>
Signed-off-by: Sam James <sam@gentoo.org>
pr23169b test only works with lazy binding. To work with linker which
disables lazy binding by default, build pr23169b binaries with -z lazy.
PR ld/30698
* ld-ifunc/ifunc.exp: Build pr23169b binaries with -z lazy.
Fix issue reported by Dave and Alan.
Put back the old pattern for hppa-*-linux* and add hppa[12]*-*-linux* to cover
Gentoo's hppa1.1 and hppa2.0 without including hppa64 inadvertently like I did
before.
ld/
PR 30733
PR 30734
* ld/testsuite/ld-elf/relocatable.d: Use better pattern to exclude hppa64
but include hppa1.1, hppa2.0.
* ld/testsuite/ld-elf/retain7a.d: Ditto.
Fixes: 0e339f6b4f
Fixes: e3b6618719
Signed-off-by: Sam James <sam@gentoo.org>
PR 30733
* ld/testsuite/ld-elf/retain7a.d: Fix XFAIL entry for hppa to match
hppa{1.1,2.0}*, like hppa2.0-unknown-linux-gnu which Gentoo uses.
Signed-off-by: Sam James <sam@gentoo.org>
PR 30734
* ld/testsuite/ld-elf/relocatable.d: Fix notarget entry for hppa to match
hppa{1.1,2.0}*, like hppa2.0-unknown-linux-gnu which Gentoo uses.
Signed-off-by: Sam James <sam@gentoo.org>
This fixes miscounting of dynamic relocations on GOT entries when
a) there are both local-dynamic and global-dynamic tls accesss for a
given symbol, and
b) the symbol is global with non-default visibility, and
c) the __tls_get_addr calls aren't optimised away.
PR 30697
bfd/
* elf32-ppc.c (allocate_dynrelocs): Correct local-dynamic
reloc count.
ld/
* testsuite/ld-powerpc/tls32ldgd.d,
* testsuite/ld-powerpc/tls32ldgd.s: New test.
* testsuite/ld-powerpc/powerpc.exp: Run it.
Make the n64 ABI the default for 64-bit Linux targets specified with
`-gnuabi64' suffix included in the target triplet, for configurations
such as the Debian mips64el and mips64r6el ports. Adjust testsuite
configuration accordingly.
There are the following regressions with the new target triplet:
mips64-linux-gnuabi64 +FAIL: readelf -S bintest
mips64-linux-gnuabi64 +FAIL: MIPS reloc estimation 1
mips64el-linux-gnuabi64 +FAIL: readelf -S bintest
mips64el-linux-gnuabi64 +FAIL: MIPS reloc estimation 1
The `readelf' issue comes from a difference in section headers produced
that the `binutils/testsuite/binutils-all/readelf.s-64' pattern template
does not match. While there has been a precedent it does not appear to
me that there is a clear advantage from adding more and more variations
to the template rather than forking the existing template into multiple
ones for a more exact match. So this is best deferred to a separate
discussion.
The MIPS reloc estimation issue is an actual bug in `objdump', which
discards a number of trailing entries from output here for n64 composed
relocations:
DYNAMIC RELOCATION RECORDS
OFFSET TYPE VALUE
0000000000000000 R_MIPS_NONE *ABS*
0000000000000000 R_MIPS_NONE *ABS*
and consequently `ld/testsuite/ld-mips-elf/reloc-estimate-1.d' does not
match even though ELF output produced is correct according to `readelf':
Relocation section '.rel.dyn' at offset 0x10400 contains 2 entries:
Offset Info Type Sym. Value Sym. Name
000000000000 000000000000 R_MIPS_NONE
Type2: R_MIPS_NONE
Type3: R_MIPS_NONE
000000010000 000300001203 R_MIPS_REL32 0000000000010010 foo@@V2
Type2: R_MIPS_64
Type3: R_MIPS_NONE
As a genuine bug this has to be handled separately.
Co-Authored by: Maciej W. Rozycki <macro@orcam.me.uk>
bfd/
* config.bfd: Add `mips64*el-*-linux*-gnuabi64' and
`mips64*-*-linux*-gnuabi64' targets.
binutils/
* testsuite/binutils-all/mips/mips.exp: Handle `*-*-*-gnuabi64'
targets.
* testsuite/binutils-all/objcopy.exp: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/binutils-all/remove-relocs-01.d: Likewise.
* testsuite/binutils-all/remove-relocs-04.d: Likewise.
* testsuite/binutils-all/remove-relocs-05.d: Likewise.
* testsuite/binutils-all/remove-relocs-06.d: Likewise.
gas/
* configure.ac: Handle `mips64*-linux-gnuabi64' targets.
* configure: Regenerate.
* testsuite/gas/mips/compact-eh-eb-7.d: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/gas/mips/compact-eh-el-7.d: Likewise.
ld/
* configure.tgt: Add `mips64*el-*-linux-gnuabi64' and
`mips64*-*-linux-gnuabi64' targets.
* testsuite/ld-undefined/undefined.exp: Handle
`mips64*-*-*-gnuabi64' targets.
* testsuite/ld-mips-elf/attr-gnu-4-10.d: Likewise.
* testsuite/ld-mips-elf/compact-eh6.d: Likewise.
* testsuite/ld-mips-elf/mips-elf.exp: Handle `*-*-*-gnuabi64'
targets.
IRIX 6 does not have MIPS16 stub section support in its n32 linker
scripts, causing such input sections to be propagated to the respective
output sections rather than `.text', causing dump pattern mismatches.
Expect IRIX 6 to fail with n32 testing then, removing this regression:
mips-sgi-irix6 -FAIL: MIPS16 interlinking for local functions 1 (n32)
We may choose to update IRIX 6 n32 linker scripts sometime, as it seems
a harmless change.
ld/
* testsuite/ld-mips-elf/mips-elf.exp: Expect IRIX 6 to fail with
n32 `mips16-local-stubs-1' testing.
The MIPS16 interlinking test for local functions expects to be assembled
with 32-bit addressing, otherwise causing assembly warnings:
.../ld/testsuite/ld-mips-elf/mips16-local-stubs-1.s: Assembler messages:
.../ld/testsuite/ld-mips-elf/mips16-local-stubs-1.s:16: Warning: la used to load 64-bit address; recommend using dla instead
Use the per-ABI framework then to run the test explicitly for o32 and
n32 ABIs only, replacing the `-mips4' option from the `as' tag with
`.module mips4' pseudo-op within the source itself so as to avoid
assembly errors:
Assembler messages:
Error: -mips4 conflicts with the other architecture options, which imply -mips3
with n32 testing for some targets, and ultimately removing these
regressions:
mips64-openbsd -FAIL: MIPS16 interlinking for local functions 1
mips64el-openbsd -FAIL: MIPS16 interlinking for local functions 1
Co-Authored-By: Maciej W. Rozycki <macro@orcam.me.uk>
ld/
* testsuite/ld-mips-elf/mips16-local-stubs-1.d: Remove `-mips4'
from the `as' tag.
* testsuite/ld-mips-elf/mips16-local-stubs-1.s: Add `.module
mips4'.
* testsuite/ld-mips-elf/mips-elf.exp: Run `mips16-local-stubs-1'
for o32 and n32 ABIs only.
The `got-dump-1' test case uses 32-bit addressing, so it makes no sense
to run it with the n64 ABI. And there is a corresponding `got-dump-2'
test already for the n64 ABI.
Use the per-ABI framework then to run the `got-dump-1' test explicitly
for o32 and n32 ABIs only.
ld/
* testsuite/ld-mips-elf/mips-elf.exp: Run `got-dump-1' for o32
and n32 ABIs only.
OpenBSD targets produce ELF64 files while the pattern dump expects ELF32
output and specific header sizes. Disable it for `mips64*-*-openbsd*'
for these targets then, removing these failures:
mips64-openbsd -FAIL: ld-mips-elf/attr-gnu-4-10
mips64el-openbsd -FAIL: ld-mips-elf/attr-gnu-4-10
ld/
* testsuite/ld-mips-elf/attr-gnu-4-10.d: Add `notarget' tag with
`mips64*-*-openbsd*'.
IRIX targets do not enable the production of a `.pdr' section in GAS by
default, which causes a failure with the `attr-gnu-4-10' test case due
to a difference resulting in the number and indices of sections produced
in linker output.
As the presence or absence of this section is not relevant to this test
case, just enable it unconditionally, fixing these regressions:
mips-sgi-irix5 -FAIL: ld-mips-elf/attr-gnu-4-10
mips-sgi-irix6 -FAIL: ld-mips-elf/attr-gnu-4-10
ld/
* testsuite/ld-mips-elf/attr-gnu-4-10.d: Add `as' tag with
`-mpdr'.
The `mips-sgi-irix6' target only supports IRIX linker emulations, but
most JALR relaxation tests request the relevant traditional emulation
instead, causing a link failure:
./ld-new: unrecognised emulation mode: elf32btsmipn32
Supported emulations: elf32bmipn32 elf32bsmip elf64bmip
This is clearly an omission from the conversion to use the per-ABI
framework made with commit 78da84f994 ("MIPS/LD/testsuite: Correct
mips-elf.exp test ABI/emul/endian arrangement"). These tests are also
endianness agnostic, which was missed in the conversion as well.
Remove the unnecessary explicit ABI and endianness options then and rely
on the per-ABI framework to get things right, removing this regression:
mips-sgi-irix6 -FAIL: MIPS relax-jalr-shared n32
ld/
* testsuite/ld-mips-elf/relax-jalr-n32-shared.d: Remove flags
related to ABI and endianness selection from the `as' and `ld'
tags.
* testsuite/ld-mips-elf/relax-jalr-n64.d: Likewise.
* testsuite/ld-mips-elf/relax-jalr-n64-shared.d: Likewise.
* testsuite/ld-mips-elf/mips-elf.exp: Remove `as' and `ld' tag
additions from the invocation of JALR relaxation tests.
There are only n64 linker emulations included with `mips64*-*-openbsd*'
targets, however the unaligned JALX tests insist on running across all
targets and force the n32 ABI, causing link errors with the targets
concerned, e.g.:
./ld-new: tmpdir/unaligned-jalx-0.o: ABI is incompatible with that of the selected emulation
./ld-new: failed to merge target specific data of file tmpdir/unaligned-jalx-0.o
./ld-new: tmpdir/unaligned-insn.o: ABI is incompatible with that of the selected emulation
./ld-new: failed to merge target specific data of file tmpdir/unaligned-insn.o
Convert the tests then to use the per-ABI framework and run them for the
o32 and n32 ABIs, removing these regressions:
mips64-openbsd -FAIL: MIPS JALX to unaligned symbol 0
mips64-openbsd -FAIL: MIPS JALX to unaligned symbol 1
mips64-openbsd -FAIL: MIPS JALX to unaligned symbol 2
mips64-openbsd -FAIL: MIPS JALX to unaligned symbol 3
mips64-openbsd -FAIL: MIPS16 JALX to unaligned symbol 0
mips64-openbsd -FAIL: MIPS16 JALX to unaligned symbol 1
mips64-openbsd -FAIL: microMIPS JALX to unaligned symbol 0
mips64-openbsd -FAIL: microMIPS JALX to unaligned symbol 1
mips64el-openbsd -FAIL: MIPS JALX to unaligned symbol 0
mips64el-openbsd -FAIL: MIPS JALX to unaligned symbol 1
mips64el-openbsd -FAIL: MIPS JALX to unaligned symbol 2
mips64el-openbsd -FAIL: MIPS JALX to unaligned symbol 3
mips64el-openbsd -FAIL: MIPS16 JALX to unaligned symbol 0
mips64el-openbsd -FAIL: MIPS16 JALX to unaligned symbol 1
mips64el-openbsd -FAIL: microMIPS JALX to unaligned symbol 0
mips64el-openbsd -FAIL: microMIPS JALX to unaligned symbol 1
Similar tests for the n64 ABI can be added separately, using suitable
dump patterns.
ld/
* testsuite/ld-mips-elf/unaligned-jalx-0.d: Remove `-32' from
the `as' tag.
* testsuite/ld-mips-elf/unaligned-jalx-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-2.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-3.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-mips16-0.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-mips16-1.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-micromips-0.d: Likewise.
* testsuite/ld-mips-elf/unaligned-jalx-micromips-1.d: Likewise.
* testsuite/ld-mips-elf/mips-elf.exp: Run unaligned JALX tests
with `run_dump_test_o32' and `run_dump_test_n32' rather than
`run_dump_test'.
In ld/emulparams/elf64bmip-defs.sh there is no explicit handling of the
`.interp' section, which causes it to be positioned in output at an odd
place.
Let's include it with INITIAL_READONLY_SECTIONS, just like o32/n32 do,
fixing a regression from commit 5a8e7be242 ("INITIAL_READONLY_SECTIONS
in elf.sc"), where the handling of n64 was missed due to an unfortunate
sequence of events where ld/emulparams/elf64bmip-defs.sh was only added
with commit 94bb04b3c6 ("Use .reginfo rather than .MIPS.options in n32
linker scripts") the day before.
Add test cases covering section ordering across the three ABIs. This
change also fixes ld/pr23658-2:
FAIL: Build pr23658-2
Co-Authored-By: Maciej W. Rozycki <macro@orcam.me.uk>
ld/ChangeLog:
* emulparams/elf64bmip-defs.sh: Include `.interp' with
INITIAL_READONLY_SECTIONS.
* testsuite/ld-mips-elf/pie-n64.d: Adjust addresses.
* testsuite/ld-mips-elf/sections-1-o32.rd: New test.
* testsuite/ld-mips-elf/sections-1-o32t.rd: New test.
* testsuite/ld-mips-elf/sections-1-n32.rd: New test.
* testsuite/ld-mips-elf/sections-1-n32t.rd: New test.
* testsuite/ld-mips-elf/sections-1-n32p.rd: New test.
* testsuite/ld-mips-elf/sections-1-n64.rd: New test.
* testsuite/ld-mips-elf/sections-1-n64t.rd: New test.
* testsuite/ld-mips-elf/sections-2-o32.rd: New test.
* testsuite/ld-mips-elf/sections-2-o32t.rd: New test.
* testsuite/ld-mips-elf/sections-2-n32.rd: New test.
* testsuite/ld-mips-elf/sections-2-n32t.rd: New test.
* testsuite/ld-mips-elf/sections-2-n32p.rd: New test.
* testsuite/ld-mips-elf/sections-2-n64.rd: New test.
* testsuite/ld-mips-elf/sections-2-n64t.rd: New test.
* testsuite/ld-mips-elf/sections.s: New test source.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
