See https://sourceware.org/ml/binutils/2016-07/msg00091.html
This patch stop --gc-sections elf_gc_sweep_symbol localizing symbols
that ought to remain global.
The difficulty with always descending into output section statements
is that symbols defined by the script in such statements don't have
a bfd section when lang_do_assignments runs early in the link process.
There are two approaches to curing this problem. Either we can
create the bfd section early, or we can use a special section. This
patch takes the latter approach and uses bfd_und_section. (Creating
bfd sections early results in changed output section order, and thus
lots of testsuite failures. You can't create all output sections
early to ensure proper ordering as KEEP then stops empty sections
from being stripped.)
The wrinkle with this approach is that some code that runs at
gc-sections time needs to be made aware of the odd defined symbols
using bfd_und_section.
bfd/
* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Handle symbols
defined temporarily with bfd_und_section.
* elflink.c (_bfd_elf_gc_keep): Don't set SEC_KEEP for bfd_und_section.
* elfxx-mips.c (mips_elf_local_pic_function_p): Exclude defined
symbols with bfd_und_section.
ld/
* ldlang.c (lang_do_assignments_1): Descend into output section
statements that do not yet have bfd sections. Set symbol section
temporarily for symbols defined in such statements to the undefined
section. Don't error on data or reloc statements until final phase.
* ldexp.c (exp_fold_tree_1 <etree_assign>): Handle bfd_und_section
in expld.section.
* testsuite/ld-mmix/bpo-10.d: Adjust.
* testsuite/ld-mmix/bpo-11.d: Adjust.
Turned out that by moving the binary start to 256M I've hit a case with
potentially a lot of aliasing in the branch target buffer between
binaries and shared libs. So moving on.
Tested on s390x. No regressions.
ld/ChangeLog:
2016-10-10 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
* emulparams/elf64_s390.sh: Move binary start to 16M.
* testsuite/ld-s390/tlsbin_64.dd: Adjust testcases accordingly.
* testsuite/ld-s390/tlsbin_64.rd: Likewise.
Changes the result of ld expressions that were previously plain
numbers to be an absolute address, in the same circumstances where
numbers are treated as absolute addresses.
* ld.texinfo (Expression Section): Update result of arithmetic
expressions.
* ldexp.c (arith_result_section): New function.
(fold_binary): Use it.
Commit b751e639 regressed arm linux kernel builds, that have an
ASSERT (((__hyp_idmap_text_end - (__hyp_idmap_text_start
& ~ (((0x1 << 0xc) - 0x1))))
<= (0x1 << 0xc)), HYP init code too big or misaligned)
Due to some insanity in ld expression evaluation, the integer values
0x1 and 0xc above are treated as absolute addresses (ie. they have an
associated section, *ABS*, see exp_fold_tree_1 case etree_value) while
the expression (0x1 << 0xc) has a plain number result. The left hand
side of the inequality happens to evaluate to a "negative" .text
section relative value. Comparing a section relative value against an
absolute value works since the section relative value is first
converted to absolute. Comparing a section relative value against a
number just compares the offsets, which fails since the "negative"
offset is really a very large positive number.
This patch works around the problem by folding integer expressions, so
the assert again becomes
ASSERT (((__hyp_idmap_text_end - (__hyp_idmap_text_start
& 0xfffffffffffff000))
<= 0x1000), HYP init code too big or misaligned)
* ldexp.c (exp_value_fold): New function.
(exp_unop, exp_binop, exp_trinop): Use it.
This should mean the 2010-10-28 change for ld -r --gc-sections can
be reverted.
* scripttempl/v850.sc: Don't reference __ctbp, __ep, __gp when
not relocating.
* scripttempl/v850_rh850.sc: Likewise.
* ldmain.c (default_bfd_error_handler): New function pointer.
(ld_bfd_error_handler): New function.
(main): Arrange to call it on bfd errors/warnings.
(ld_bfd_assert_handler): Enable tail call.
It was like printf, which means you can't use bfd_set_error_handler to
hook in a function to do something and then call the original handler.
The patch also deletes some unused functions and makes pointers local.
bfd/
* bfd-in.h: Include stdarg.h.
* bfd.c (bfd_error_handler_type): Make like vprintf.
(_bfd_error_internal): Rename from _bfd_error_handler. Make static.
(error_handler_internal): New function, split out from..
(_bfd_default_error_handler): ..here. Rename to _bfd_error_handler.
(bfd_set_error_handler): Update.
(bfd_get_error_handler, bfd_get_assert_handler): Delete.
(_bfd_assert_handler): Make static.
* coffgen.c (null_error_handler): Update params.
* elf-bfd.h (struct elf_backend_data <link_order_error_handler>):
Don't use bfd_error_handler_type.
* elf64-mmix.c (mmix_dump_bpo_gregs): Likewise.
* elfxx-target.h (elf_backend_link_order_error_handler): Default
to _bfd_error_handler.
* libbfd-in.h (_bfd_default_error_handler): Don't declare.
(bfd_assert_handler_type): Likewise.
(_bfd_error_handler): Update.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
ld/
* ldlang.c (ignore_bfd_errors): Update params.
SEC_EXCLUDE is ignored when doing a relocatable link. But we can't
merge 2 input sections with the same name when only one of them has
SHF_EXCLUDE.
PR ld/20528
* emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't
merge 2 sections with different SHF_EXCLUDE.
* testsuite/ld-elf/pr20528a.d: New file.
* testsuite/ld-elf/pr20528a.s: Likewise.
* testsuite/ld-elf/pr20528b.d: Likewise.
* testsuite/ld-elf/pr20528b.s: Likewise.
2016-09-28 Christophe Lyon <christophe.lyon@linaro.org>
PR ld/20608
bfd/
* elf32-arm.c (arm_type_of_stub): Handle the case when the pre-PLT
Thumb-ARM stub is too far.
ld
* testsuite/ld-arm/arm-elf.exp: Handle new testcase.
* testsuite/ld-arm/farcall-mixed-app2.d: New file.
* testsuite/ld-arm/farcall-mixed-app2.r: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.s: Likewise.
* testsuite/ld-arm/farcall-mixed-app2.sym: Likewise.
This patch extends Tag_GNU_Power_ABI_FP to cover long double ABIs,
makes the assembler warn about undefined tag values, and removes
similar warnings from the linker. I think it is better to not
warn in the linker about undefined tag values as future extensions to
the tags then won't result in likely bogus warnings. This is
consistent with the fact that an older linker won't warn on an
entirely new tag.
include/
* elf/ppc.h (Tag_GNU_Power_ABI_FP): Comment.
bfd/
* elf-bfd.h (_bfd_elf_ppc_merge_fp_attributes): Declare.
* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): New function.
(ppc_elf_merge_obj_attributes): Use it. Don't copy first file
attributes, merge them. Don't warn about undefined tag bits,
or copy unknown values to output.
* elf64-ppc.c (ppc64_elf_merge_private_bfd_data): Call
_bfd_elf_ppc_merge_fp_attributes.
binutils/
* readelf.c (display_power_gnu_attribute): Catch truncated section
for all powerpc attributes. Display long double ABI. Don't
capitalize words, except for names. Show known bits of tag values
when some unknown bits are present. Whitespace fixes.
gas/
* config/tc-ppc.c (ppc_elf_gnu_attribute): New function.
(md_pseudo_table <ELF>): Handle "gnu_attribute".
ld/
* testsuite/ld-powerpc/attr-gnu-4-4.s: Delete.
* testsuite/ld-powerpc/attr-gnu-4-14.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-24.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-34.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-41.d: Delete.
* testsuite/ld-powerpc/attr-gnu-4-32.d: Adjust expected warning.
* testsuite/ld-powerpc/attr-gnu-8-23.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-01.d: Adjust expected output.
* testsuite/ld-powerpc/attr-gnu-4-02.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-03.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-10.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-11.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-20.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-22.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-4-33.d: Likewise.
* testsuite/ld-powerpc/attr-gnu-8-11.d: Likewise.
* testsuite/ld-powerpc/powerpc.exp: Don't run deleted tests.
PR ld/20595
ld * testsuite/ld-arm/unwind-4.d: Add -q option to linker command
line and -r option to objdump command line. Match emitted relocs
to make sure that superflous relocs are not generated.
bfd * elf-bfd.h (struct elf_backend_data): Add
elf_backend_count_output_relocs callback to count relocations in
the final output.
* elf-arm.c (elf32_arm_add_relocation): Deleted.
(elf32_arm_write_section): Move additional relocation to emit_relocs.
(elf32_arm_count_output_relocs): New function.
(emit_relocs): New function.
(elf32_arm_emit_relocs): New function.
(elf32_arm_vxworks_emit_relocs): New function.
(elf_backend_emit_relocs): Updated to use the new functions.
(elf_backend_count_output_relocs): New define.
* bfd/elflink.c (bfd_elf_final_link): Do not add additional_reloc_count
to the relocation count.
(_bfd_elf_link_size_reloc_section): Use callback to count the
relocations which will be in output.
(_bfd_elf_default_count_output_relocs): New function.
* bfd/elfxx-target.h (elf_backend_count_output_relocs): New define.
SVE defines new names for existing NZCV conditions, to reflect the
result of instructions like PTEST. This patch adds support for these
names.
The patch also adds comments to the disassembly output to show the
alternative names of a condition code. For example:
cinv x0, x1, cc
becomes:
cinv x0, x1, cc // cc = lo, ul, last
and:
b.cc f0 <...>
becomes:
b.cc f0 <...> // b.lo, b.ul, b.last
Doing this for the SVE names follows the practice recommended by the
SVE specification and is definitely useful when reading SVE code.
If the feeling is that it's too distracting elsewhere, we could add
an option to turn it off.
include/
* opcode/aarch64.h (aarch64_cond): Bump array size to 4.
opcodes/
* aarch64-dis.c (remove_dot_suffix): New function, split out from...
(print_mnemonic_name): ...here.
(print_comment): New function.
(print_aarch64_insn): Call it.
* aarch64-opc.c (aarch64_conds): Add SVE names.
(aarch64_print_operand): Print alternative condition names in
a comment.
gas/
* config/tc-aarch64.c (opcode_lookup): Search for the end of
a condition name, rather than assuming that it will have exactly
2 characters.
(parse_operands): Likewise.
* testsuite/gas/aarch64/alias.d: Add new condition-code comments
to the expected output.
* testsuite/gas/aarch64/beq_1.d: Likewise.
* testsuite/gas/aarch64/float-fp16.d: Likewise.
* testsuite/gas/aarch64/int-insns.d: Likewise.
* testsuite/gas/aarch64/no-aliases.d: Likewise.
* testsuite/gas/aarch64/programmer-friendly.d: Likewise.
* testsuite/gas/aarch64/reloc-insn.d: Likewise.
* testsuite/gas/aarch64/b_c_1.d, testsuite/gas/aarch64/b_c_1.s:
New test.
ld/
* testsuite/ld-aarch64/emit-relocs-280.d: Match branch comments.
* testsuite/ld-aarch64/weak-undefined.d: Likewise.
There was a gap in the documentation of EXCLUDE_FILE that could cause
confusion to a user. When writing an input section specifier like this:
*(EXCLUDE_FILE (somefile.o) .text .text.*)
this could mean one of the following:
1. All '.text' and '.text.*' from all files except for 'somefile.o',
or
2. All '.text' from all files except 'somefile.o', and all '.text.*'
sections from all files.
It turns out that the second interpretation is correct, but the manual
does not make this clear (to me at least). Hopefully this patch makes
things clearer.
ld/ChangeLog:
* ld/ld.texinfo (Input Section Basics): Expand the description of
EXCLUDE_FILE.
bfd/
2016-09-14 Thomas Preud'homme <thomas.preudhomme@arm.com>
* elf32-arm.c (elf32_arm_gc_mark_extra_sections): Only mark section
not already marked.
ld/
2016-09-14 Thomas Preud'homme <thomas.preudhomme@arm.com>
* testsuite/ld-arm/cmse-veneers.s: Add a test for ARMv8-M Security
Extensions entry functions in absolute section.
* testsuite/ld-arm/cmse-veneers.rd: Adapt expected output accordingly.
The assembler accepts dtpoff complex relocation expression like
identifier@dtpoff + const. However, it doesn't accept an expression such
as identifier@dtpoff@base + const. This patch solves this issue, and adds
a number of tests.
ld/
2016-09-14 Claudiu Zissulescu <claziss@synopsys.com>
* testsuite/ld-arc/tls-dtpoff.dd: New file.
* testsuite/ld-arc/tls-dtpoff.rd: Likewise.
* testsuite/ld-arc/tls-dtpoff.s: Likewise.
* testsuite/ld-arc/tls-relocs.ld: Likewise.
* testsuite/ld-arc/arc.exp: Add new tdpoff test.
gas/
2016-09-14 Claudiu Zissulescu <claziss@synopsys.com>
* testsuite/gas/arc/tls-relocs2.d: New file.
* testsuite/gas/arc/tls-relocs2.s: Likewise.
* config/tc-arc.c (tokenize_arguments): Accept offsets when base
is used.
PR ld/20537
* emultempl/elf32.em: More OPTION_xxx values into an enum. Add
OPTION_NO_EH_FRAME_HDR.
(_add_options): Add support for --no-eh-frame-hdr.
* ld.texinfo: Document new option.
* lexsup.c (elf_shlib_list_options): List new option.
* NEWS: Mention the new option.
We can resolve size relocation against symbol which needs copy relocation
when building executable.
bfd/
PR ld/20550
* elf64-x86-64.c (elf_x86_64_relocate_section): Resolve size
relocation with copy relocation when building executable.
ld/
PR ld/20550
* testsuite/ld-x86-64/pr20550a.s: New file.
* testsuite/ld-x86-64/pr20550b.s: Likewise.
* testsuite/ld-x86-64/x86-64.exp (x86_64tests): Add tests for
PR ld/20550.
* Makefile.am (CFLAGS_FOR_TARGET): Define as a copy of CFLAGS but
without any sanitization options.
(CXXFLAGS_FOR_TARGET): Define as a copy of CXXFLAGS but without
any sanitization options.
(check-DEJAGNU): Pass CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET
as CFLAGS and CXXFLAGS respectively.
Prior to the patch, addends for relocs were being adjusted even if
they went beyond an alignment boundary. This is wrong - to
preserve alignment constraints, the relaxation logic adds as many padding
bytes at the alignment boundary as was deleted, so addends beyond the
boundary should not be adjusted. avr-prop-7.s reproduces this
scenario.
Also, prior to this patch, the relaxation logic assumed that the addr
parameter pointed to the middle of the instruction to be deleted, and
that addr - count would therefore be the shrinked instruction's
address. This is true when actually shrinking instructions.
The alignment constraints handling logic also invokes the same logic
though, with addr as the starting offset of padding bytes and
with count as the number of bytes to be deleted. Calculating the
shrinked insn's address as addr - count is obviously wrong in this
case - that offset would point to count bytes before the last
non-padded byte. avr-prop-8.s reproduces this scenario.
To fix scenario 1, the patch adds an additional check to ensure reloc addends
aren't adjusted if they cross a shrink boundary. The shrink boundary
is either the section size or an alignment boundary. Addends pointing
at an alignment boundary don't need to be adjusted, as padding would
occur and keep the boundary the same. Addends pointing at section size
need to be adjusted though, as no padding occurs and the section size
itself would get decremented. The patch records whether padding
occured (did_pad) and uses that to detect and handle this condition.
To fix scenario 2, the patch adds an additional parameter
(delete_shrinks_insn) to elf32_avr_relax_delete_bytes to distinguish
instruction bytes deletion from padding bytes deletion. It then uses that to
correctly set shrinked_insn_address.
bfd/ChangeLog:
2016-09-02 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
PR ld/20545
* elf32-avr.c (elf32_avr_relax_delete_bytes): Add parameter
delete_shrinks_insn. Modify computation of shrinked_insn_address.
Compute shrink_boundary and adjust addend only if
addend_within_shrink_boundary.
(elf32_avr_relax_section): Modify calls to
elf32_avr_relax_delete_bytes to pass extra parameter.
ld/ChangeLog:
2016-09-02 Senthil Kumar Selvaraj <senthil_kumar.selvaraj@atmel.com>
PR ld/20545
* testsuite/ld-avr/avr-prop-7.d: New test.
* testsuite/ld-avr/avr-prop-7.s: New test.
* testsuite/ld-avr/avr-prop-8.d: New test.
* testsuite/ld-avr/avr-prop-8.s: New test.
ld/ChangeLog:
Cupertino Miranda <cmiranda@synopsys.com>
* testsuite/ld-arc/tls_gs-01.d: Set to XFAIL on arc*-*-elf*.
* testsuite/ld-arc/tls_ie-01.d: Likewise.
On i386, IFUNC function must be called via PLT. Since PLT in PIC
object uses EBX register, R_386_PLT32 relocation must be used to
call IFUNC function even when IFUNC function is defined locally.
Linker should issue an error when R_386_PC32 relocation is used
to call IFUNC function.
Since PR ld/19784 tests doesn't use PLT relocation to local IFUNC
function, they are moved to the x86-64 test directory.
bfd/
PR ld/14961
PR ld/20515
* elf32-i386.c (elf_i386_check_relocs): Issue an error when
R_386_PC32 relocation is used to call IFUNC function in PIC
object.
ld/
PR ld/14961
PR ld/20515
* testsuite/ld-i386/i386.exp: Run pr20515.
* testsuite/ld-i386/pr20515.d: New file.
* testsuite/ld-i386/pr20515.s: Likewise.
* testsuite/ld-ifunc/ifunc-14a.s: Use R_386_PLT32 to call IFUNC
function.
* testsuite/ld-ifunc/ifunc-14c.s: Likewise.
* testsuite/ld-ifunc/ifunc-2-i386.s: Likewise.
* testsuite/ld-ifunc/ifunc-2-local-i386.s: Likewise.
* testsuite/ld-ifunc/ifunc.exp: Move PR ld/19784 tests to ...
* testsuite/ld-x86-64/x86-64.exp: Here.
* testsuite/ld-ifunc/pr19784a.c: Moved to ...
* testsuite/ld-x86-64/pr19784a.c: Here.
* testsuite/ld-ifunc/pr19784b.c: Moved to ...
* testsuite/ld-x86-64/pr19784b.c: Here.
* testsuite/ld-ifunc/pr19784c.c: Moved to ...
* testsuite/ld-x86-64/pr19784c.c: Here.
2016-08-26 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* bfd-in.h (struct elf32_arm_params): Define.
(bfd_elf32_arm_set_target_relocs): Rename into ...
(bfd_elf32_arm_set_target_params): This. Use a struct
elf32_arm_params to pass all parameters but the bfd and bfd_link_info.
* bfd-in2.h: Regenerate.
* elf32-arm.c (bfd_elf32_arm_set_target_relocs): Rename into ...
(bfd_elf32_arm_set_target_params): This. Pass all values via a struct
elf32_arm_params rather than as individual parameters.
ld/
* emultempl/armelf.em (params): New static variable.
(thumb_entry_symbol, byteswap_code, target1_is_rel, target2_type,
fix_v4bx, use_blx, vfp11_denorm_fix, stm32l4xx_fix, fix_cortex_a8,
no_enum_size_warning, no_wchar_size_warning, pic_veneer,
merge_exidx_entries, fix_arm1176, cmse_implib): move as part of the
above new structure.
(arm_elf_before_allocation): Access static variable from the params
structure.
(gld${EMULATION_NAME}_finish): Likewise.
(arm_elf_create_output_section_statements): Likewise and pass the
address of that structure to bfd_elf32_arm_set_target_relocs instead
of the static variables.
(PARSE_AND_LIST_ARGS_CASES): Access static variable from the params
structure.
Forgot to set should_relocate to TRUE in case of GOT and TLS relocations of
undefined symbols for shared libraries.
In dynamic libraries if symbol is not known the instruction relocation would
not be resolved to point to the respective .got entry.
A test was created to detect similar future mistakes.
bfd/ChangeLog:
Cupertino Miranda <cmiranda@synopsys.com>
* elf32-arc.c (elf_arc_relocate_section): Changed. Set should_relocate
to TRUE for GOT and TLS relocs.
ld/ChangeLog:
Cupertino Miranda <cmiranda@synopsys.com>
* ld/testsuite/ld-arc/tls_gd-01.s: Added a testcase for this patch.
* ld/testsuite/ld-arc/tls_gd-01.d: Likewise.
When no dynamic relocation was generated the .got content would not be
updated for the TLS_IE_GOT relocation addresses.
bfd/ChangeLog:
Cupertino Miranda <cmiranda@synopsys.com>
* arc-got.h (relocate_fix_got_relocs_for_got_info): Fixed addresses in
debug comments. Fixed address in .got related to TLS_IE_GOT dynamic
relocation.
ld/ChangeLog:
Cupertino Miranda <cmiranda@synopsys.com>
* testsuite/ld-arc/tls_ie-01.s: Added to verify associated fix.
* testsuite/ld-arc/tls_ie-01.d: Likewise
2016-08-26 Thomas Preud'homme <thomas.preudhomme@arm.com>
bfd/
* bfd-in.h (bfd_elf32_arm_set_target_relocs): Add a new parameter for
the input import library bfd.
* bfd-in2.h: Regenerate.
* elf32-arm.c (struct elf32_arm_link_hash_table): New in_implib_bfd
and new_cmse_stub_offset fields.
(stub_hash_newfunc): Initialize stub_offset and stub_template_size to
-1.
(elf32_arm_add_stub): Likewise for stub_offset.
(arm_new_stubs_start_offset_ptr): New function.
(arm_build_one_stub): Only allocate a stub_offset if it is -1. Allow
empty SG veneers to have zero relocations.
(arm_size_one_stub): Only initialize stub size and template
information for non empty veneers. Do not update veneer section size
if veneer already has an offset.
(elf32_arm_create_stub): Return the stub entry pointer or NULL instead
of a boolean indicating success or failure.
(cmse_scan): Change stub_changed parameter into an integer pointer
parameter cmse_stub_created to count the number of stub created and
adapt to change of return value in elf32_arm_create_stub.
(cmse_entry_fct_p): New function.
(arm_list_new_cmse_stub): Likewise.
(set_cmse_veneer_addr_from_implib): Likewise.
(elf32_arm_size_stubs): Define cmse_stub_created, pass its address to
cmse_scan instead of that of cmse_stub_changed to compute the number
of stub created and use it to initialize stub_changed. Call
set_cmse_veneer_addr_from_implib after all cmse_scan. Adapt to change
of return value in elf32_arm_create_stub. Use
arm_stub_section_start_offset () if not NULL to initialize size of
secure gateway veneers section. Initialize stub_offset of Cortex-A8
erratum fix to -1. Use ret to hold return value.
(elf32_arm_build_stubs): Use arm_stub_section_start_offset () if not
NULL to initialize size of secure gateway veneers section. Adapt
comment to stress the importance of zeroing veneer section content.
(bfd_elf32_arm_set_target_relocs): Add new in_implib_bfd parameter to
initialize eponymous field in struct elf32_arm_link_hash_table.
ld/
* emultempl/armelf.em (in_implib_filename): Declare and initialize new
variable.
(arm_elf_create_output_section_statements): Open import input library
file for writing and pass resulting in_implib_bfd to
bfd_elf32_arm_set_target_relocs.
(PARSE_AND_LIST_PROLOGUE): Define OPTION_IN_IMPLIB option.
(PARSE_AND_LIST_LONGOPTS): Define --in-implib option.
(PARSE_AND_LIST_OPTIONS): Add help message for --in-implib option.
(PARSE_AND_LIST_ARGS_CASES): Handle new OPTION_IN_IMPLIB case.
* ld.texinfo (--cmse-implib): Update to mention --in-implib.
(--in-implib): Document new option.
* NEWS: Likewise.
* testsuite/ld-arm/arm-elf.exp
(Secure gateway import library generation): add --defsym VER=1 to gas
CLI.
(Secure gateway import library generation: errors): Likewise.
(Input secure gateway import library): New test.
(Input secure gateway import library: no output import library):
Likewise.
(Input secure gateway import library: not an SG input import library):
Likewise.
(Input secure gateway import library: earlier stub section base):
Likewise.
(Input secure gateway import library: later stub section base):
Likewise.
(Input secure gateway import library: veneer comeback): Likewise.
(Input secure gateway import library: entry function change):
Likewise.
* testsuite/ld-arm/cmse-implib.s: Add input import library testing.
* testsuite/ld-arm/cmse-implib.rd: Update accordingly.
* testsuite/ld-arm/cmse-new-implib.out: New file.
* testsuite/ld-arm/cmse-new-implib.rd: Likewise.
* testsuite/ld-arm/cmse-new-implib-no-output.out: Likewise.
* testsuite/ld-arm/cmse-new-implib-not-sg-in-implib.out: Likewise.
* testsuite/ld-arm/cmse-new-earlier-later-implib.out: Likewise.
* testsuite/ld-arm/cmse-new-comeback-implib.rd: Likewise.
* testsuite/ld-arm/cmse-new-wrong-implib.out: Likewise.
This fixes a few problems in the powerpc ld configury.
1) Using powerpc*le-* to test for powerpcle and powerpc64le would
incorrectly match a target triple like powerpc-apple-elf.
2) In the same vein, *64* could match 64 in the user supplied MANUF-OS
part of the target triple.
3) tooldir vars were missing, and some target aliases would result in
ridiculous values for those tdir_* vars given.
4) Since 2016-04-25, BE support was added automatically when asking
for an LE target. If that is a good idea, then so is adding LE
support when asking for BE.
* configure.tgt (powerpc*-*-linux* et al): Rewrite, adding LE
support for BE. First output all target endian configury
values, then opposite endian. Handle more tooldirs. Fix
bogus matches with strings in MANUF-OS part of target triple.
