Commit Graph

6203 Commits

Author SHA1 Message Date
Alan Modra
fce9773608 s12z and h8300 no-print-map-discarded fails
This tidies the remaining --no-print-map-discarded fails.  h8300-elf
warns on a section without flags, and s12z doesn't support
--gc-sections.

bfd/
	* elf32-s12z.c (elf_backend_can_gc_sections): Don't define
ld/
	* testsuite/ld-gc/skip-map-discarded.s: Add section attributes.
	* testsuite/lib/ld-lib.exp (check_gc_sections_available): Add
	s12z to list of targets not supporting --gc-sections.
2019-04-19 12:41:58 +09:30
H.J. Lu
9a7f0679fd x86: Suggest -fPIE when not building shared object
When PIC is needed, linker should suggest -fPIE, instead of -fPIC, when
not building shared object.

bfd/

	* elf64-x86-64.c (elf_x86_64_need_pic): Suggest -fPIE when not
	building shared object.
	* elfxx-x86.c (_bfd_x86_elf_size_dynamic_sections): Likewise.

ld/

	* testsuite/ld-i386/i386.exp: Run pr18801a and pr18801b instead
	of pr18801.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/pr18801.d: Removed.
	* testsuite/ld-x86-64/pr18801.d: Likewise.
	* testsuite/ld-i386/pr18801a.d: New file.
	* testsuite/ld-i386/pr18801b.d: Likewise.
	* testsuite/ld-x86-64/pr18801a.d: Likewise.
	* testsuite/ld-x86-64/pr18801b.d: Likewise.
	* testsuite/ld-x86-64/pie2.d: Suggest -fPIE instead of -fPIC.
	* testsuite/ld-x86-64/pie2.d: Likewise.
	* testsuite/ld-x86-64/pr19719.d: Likewise.
	* testsuite/ld-x86-64/pr19807-2a.d: Likewise.
	* testsuite/ld-x86-64/pr19969.d: Likewise.
	* testsuite/ld-x86-64/pr21997-1a.err: Likewise.
	* testsuite/ld-x86-64/pr21997-1b.err: Likewise.
	* testsuite/ld-x86-64/pr22001-1a.err: Likewise.
	* testsuite/ld-x86-64/pr22001-1b.err: Likewise.
	* testsuite/ld-x86-64/pr22791-1.err: Likewise.
2019-04-17 10:25:28 -07:00
H.J. Lu
4e84a8f8bb x86: Also check x86 linker_def for non-shared definition
Since elf_x86_linker_defined sets linker_def in elf_x86_link_hash_entry
for linker defined symbols, SYMBOL_DEFINED_NON_SHARED_P should also check
linker_def in elf_x86_link_hash_entry.

bfd/

	PR ld/24458
	* elfxx-x86.h (SYMBOL_DEFINED_NON_SHARED_P): Also check x86
	linker_def.

ld/

	PR ld/24458
	* testsuite/ld-x86-64/x86-64.exp: Run PR ld/24458 tests.
	* testsuite/ld-x86-64/pr24458.s: New file.
	* testsuite/ld-x86-64/pr24458a-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458a.d: Likewise.
	* testsuite/ld-x86-64/pr24458b-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458b.d: Likewise.
	* testsuite/ld-x86-64/pr24458c-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24458c.d: Likewise.
2019-04-17 09:08:46 -07:00
Jozef Lawrynowicz
e25de718de MSP430 Linker: Define __crt0_init_bss/__crt0_movedata symbols when .lower or .either prefixed sections are present.
ld	* config/tc-msp430.c (msp430_make_init_symbols): Define __crt0_init_bss
	symbol when .lower.bss or .either.bss sections exist.
	Define __crt0_movedata when .lower.data or .either.data sections exist.
	* testsuite/gas/msp430/either-data-bss-sym.d: New test.
	* testsuite/gas/msp430/low-data-bss-sym.d: New test.
	* testsuite/gas/msp430/either-data-bss-sym.s: New test source.
	* testsuite/gas/msp430/low-data-bss-sym.s: New test source.
	* testsuite/gas/msp430/msp430.exp: Run new tests.
	Enable large code model when running -mdata-region={upper,either}
	tests.
2019-04-17 15:05:08 +01:00
Alan Modra
a0fb961508 ns32k testsuite tidy
Some of these tests were excluded for ns32k-netbsd, exclude for all
ns32k instead.

binutils/
	* testsuite/binutils-all/copy-2.d: Don't run for ns32k-*-*.
	* testsuite/binutils-all/copy-3.d: Likewise.
gas/
	* testsuite/gas/all/gas.exp: Remove ns32k xfails.
	* testsuite/gas/all/weakref1u.d: Don't run for ns32k-*-*.
ld/
	* testsuite/ld-scripts/pr20302.d: Don't run for ns32k-*-*.
	* testsuite/ld-scripts/section-match-1.d: Likewise.
	* testsuite/ld-undefined/require-defined.exp: Likewise.
2019-04-16 19:59:55 +09:30
Faraz Shahbazker
86333705ae Skip print-map-discarded test for non-ELF targets
ld/
	* testsuite/ld-gc/gc.exp: Skip print-map-discarded test
	for non-ELF targets.
2019-04-15 08:48:42 -07:00
Andre Vieira
f6b2b12db8 [binutils, ARM, 11/16] New BFCSEL instruction for Armv8.1-M Mainline
s patch is part of a series of patches to add support for Armv8.1-M Mainline instructions to binutils.

This patch adds the BFCSEL instruction. It also adds a local relocation with a new bfd_reloc_code_real enum.

ChangeLog entries are as follows:

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* reloc.c (BFD_RELOC_THUMB_PCREL_BFCSEL): New relocation.
	* bfd-in2.h: Regenerated.
	* libbfd.h: Likewise.

*** gas/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>
             Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (T16_32_TAB): New entriy for bfcsel.
	(do_t_v8_1_branch): New switch case for bfcsel.
	(toU): Define.
	(insns): New instruction for bfcsel.
	(md_pcrel_from_section): New switch case
	for BFD_RELOC_THUMB_PCREL_BFCSEL.
	(md_appdy_fix): Likewise
	(tc_gen_reloc): Likewise.
	* testsuite/gas/arm/armv8_1-m-bfcsel.d: New.
	* testsuite/gas/arm/armv8_1-m-bfcsel.s: New.

*** ld/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* testsuite/ld-arm/bfcsel.s: New.
	* testsuite/ld-arm/bfcsel.d: New.
	* testsuite/ld-arm/arm-elf.exp: Add above test.

*** opcodes/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* arm-dis.c (thumb32_opcodes): New instruction bfcsel.
	(print_insn_thumb32): Edit the switch case for %Z.
2019-04-15 12:31:42 +01:00
Andre Vieira
65d1bc05e8 [binutils, ARM, 9/16] New BFL instruction for Armv8.1-M Mainline
This patch is part of a series of patches to add support for Armv8.1-M Mainline
instructions to binutils.

This patch adds the BFL instruction.

*** gas/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>
             Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (T16_32_TAB): New entrie for bfl.
	(do_t_v8_1_branch): New switch case for bfl.
	(insns): New instruction for bfl.
	* testsuite/gas/arm/armv8_1-m-bfl.d: New.
	* testsuite/gas/arm/armv8_1-m-bfl.s: New.
	* testsuite/gas/arm/armv8_1-m-bfl-bad.s: New.
	* testsuite/gas/arm/armv8_1-m-bfl-bad.d: New.
	* testsuite/gas/arm/armv8_1-m-bfl-bad.l: New.
	* testsuite/gas/arm/armv8_1-m-bfl-rel.d: New.
	* testsuite/gas/arm/armv8_1-m-bfl-rel.s: New.

*** ld/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* testsuite/ld-arm/bfl.s: New.
	* testsuite/ld-arm/bfl.d: New.
	* testsuite/ld-arm/arm-elf.exp: Add above test.

*** opcodes/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* arm-dis.c (thumb32_opcodes): New instruction bfl.
2019-04-15 12:30:33 +01:00
Andre Vieira
4389b29a5a [binutils, ARM, 6/16] New BF instruction for Armv8.1-M Mainline
This patch is part of a series of patches to add support for Armv8.1-M Mainline
instructions to binutils.

This patch adds the BF instruction.

ChangeLog entries are as follows:
*** gas/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>
             Andre Vieira  <andre.simoesdiasvieira@arm.com>

	* config/tc-arm.c (T16_32_TAB): New entries for bf.
	(do_t_branch_future): New.
	(insns): New instruction for bf.
	* testsuite/gas/arm/armv8_1-m-bf.d: New.
	* testsuite/gas/arm/armv8_1-m-bf.s: New.
	* testsuite/gas/arm/armv8_1-m-bf-bad.s: New.
	* testsuite/gas/arm/armv8_1-m-bf-bad.l: New.
	* testsuite/gas/arm/armv8_1-m-bf-bad.d: New.
	* testsuite/gas/arm/armv8_1-m-bf-rel.d: New.
	* testsuite/gas/arm/armv8_1-m-bf-rel.s: New.

*** ld/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* testsuite/ld-arm/bf.s: New.
	* testsuite/ld-arm/bf.d: New.
	* testsuite/ld-arm/arm-elf.exp: Add above test.

*** opcodes/ChangeLog ***

2019-04-15  Sudakshina Das  <sudi.das@arm.com>

	* arm-dis.c (thumb32_opcodes): New instructions for bf.
2019-04-15 12:30:33 +01:00
Andre Vieira
031254f211 [binutils, ARM, 1/16] Add support for Armv8.1-M Mainline CLI
The patch is straightforward, it does the following:

- support the new Tag_CPU_arch build attribute value, ie.:
   + declare the new value
   + update all the asserts forcing logic to be reviewed for new
     architectures
   + create a corresponding bfd_mach_arm_8_1M_MAIN enumerator in bfd and
     add mapping from Tag_CPU_arch to it
   + teach readelf about new Tag_CPU_arch value
- declare armv8.1-m.main as a supported architecture value
- define Armv8.1-M Mainline in terms of feature bits available
- tell objdump mapping from bfd_mach_arm_8_1M_MAIN enumerator to feature
   bits available
- update architecture-specific logic in gas and bfd guarded by the
   asserts mentioned above.
- tests for all the above

ChangeLog entries are as follows:

*** bfd/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* archures.c (bfd_mach_arm_8_1M_MAIN): Define.
	* bfd-in2.h: Regenerate.
	* cpu-arm.c (arch_info_struct): Add entry for Armv8.1-M Mainline.
	* elf32-arm.c (using_thumb_only): Return true for Armv8.1-M Mainline
	and update assert.
	(using_thumb2): Likewise.
	(using_thumb2_bl): Update assert.
	(arch_has_arm_nop): Likewise.
	(bfd_arm_get_mach_from_attributes): Add case for Armv8.1-M Mainline.
	(tag_cpu_arch_combine): Add logic for Armv8.1-M Mainline merging.

*** binutils/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* readelf.c (arm_attr_tag_CPU_arch): Add entry for Armv8.1-M Mainline.

*** gas/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* config/tc-arm.c (cpu_arch_ver): Add entry for Armv8.1-M Mainline
	Tag_CPU_arch build attribute value.  Reindent.
	(get_aeabi_cpu_arch_from_fset): Update assert.
	(aeabi_set_public_attributes): Update assert for Tag_DIV_use logic.
	* testsuite/gas/arm/attr-march-armv8_1-m.main.d: New test.

*** include/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* elf/arm.h (TAG_CPU_ARCH_V8_1M_MAIN): new macro.
	(MAX_TAG_CPU_ARCH): Set value to above macro.
	* opcode/arm.h (ARM_EXT2_V8_1M_MAIN): New macro.
	(ARM_AEXT_V8_1M_MAIN): Likewise.
	(ARM_AEXT2_V8_1M_MAIN): Likewise.
	(ARM_ARCH_V8_1M_MAIN): Likewise.

*** ld/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* testsuite/ld-arm/attr-merge-13.attr: New test.
	* testsuite/ld-arm/attr-merge-13a.s: New test.
	* testsuite/ld-arm/attr-merge-13b.s: New test.

*** opcodes/ChangeLog ***

2019-04-15  Thomas Preud'homme  <thomas.preudhomme@arm.com>

	* arm-dis.c (select_arm_features): Add logic for Armv8.1-M Mainline.
2019-04-15 10:54:42 +01:00
Alan Modra
c40e31a121 Automatic makefile dependencies for generated ld/e*.c
This patch modifies genscripts.sh to emit dependency info along with
the generated emulation e*.c files.  This is done by a new source_sh
function that records its arg to a file (.deps/e*.Tc), using the
function whenever a shell script is sourced.  Entries in the file are
made unique and written to .deps/e*.Pc.  These files are then
included by the Makefile.

	* Makefile.am (GENSCRIPTS): Pass LIB_PATH as a parameter.  Add
	DEPDIR parameter.
	(ELF_DEPS, ELF_GEN_DEPS, ELF_X86_DEPS): Delete.
	(ALL_EMULATION_SOURCES, ALL_64_EMULATION_SOURCES): Depend on
	$GEN_DEPENDS.
	(e*.c): Delete all dependencies, instead include dependencies
	from $DEPDIR/*.Pc.
	* Makefile.in: Regenerate.
	* configure.ac (source_sh): Define and use function.
	* configure: Regenerate.
	* emulparams/aarch64cloudabib.sh, * emulparams/aarch64elf32b.sh,
	* emulparams/aarch64elfb.sh, * emulparams/aarch64fbsdb.sh,
	* emulparams/aarch64linux32b.sh, * emulparams/aarch64linuxb.sh,
	* emulparams/arcelf.sh, * emulparams/arcelf_prof.sh,
	* emulparams/arclinux.sh, * emulparams/arclinux_nps.sh,
	* emulparams/arclinux_prof.sh, * emulparams/arcv2elf.sh,
	* emulparams/arcv2elfx.sh, * emulparams/armelf_fbsd.sh,
	* emulparams/armelf_linux_eabi.sh,
	* emulparams/armelf_linux_fdpiceabi.sh,
	* emulparams/armelf_nacl.sh, * emulparams/armelf_nbsd.sh,
	* emulparams/armelf_vxworks.sh, * emulparams/armelfb.sh,
	* emulparams/armelfb_fbsd.sh, * emulparams/armelfb_fuchsia.sh,
	* emulparams/armelfb_linux.sh, * emulparams/armelfb_linux_eabi.sh,
	* emulparams/armelfb_linux_fdpiceabi.sh,
	* emulparams/armelfb_nacl.sh, * emulparams/armelfb_nbsd.sh,
	* emulparams/armsymbian.sh, * emulparams/cskyelf_linux.sh,
	* emulparams/elf32_sparc_sol2.sh,
	* emulparams/elf32_sparc_vxworks.sh, * emulparams/elf32_tic6x_be.sh,
	* emulparams/elf32_tic6x_elf_be.sh,
	* emulparams/elf32_tic6x_elf_le.sh,
	* emulparams/elf32_tic6x_linux_be.sh,
	* emulparams/elf32_tic6x_linux_le.sh,
	* emulparams/elf32_x86_64.sh, * emulparams/elf32_x86_64_nacl.sh,
	* emulparams/elf32b4300.sh, * emulparams/elf32bfinfd.sh,
	* emulparams/elf32bmipn32.sh, * emulparams/elf32bsmip.sh,
	* emulparams/elf32btsmip.sh, * emulparams/elf32btsmip_fbsd.sh,
	* emulparams/elf32btsmipn32.sh, * emulparams/elf32btsmipn32_fbsd.sh,
	* emulparams/elf32ebmip.sh, * emulparams/elf32ebmipvxworks.sh,
	* emulparams/elf32elmip.sh, * emulparams/elf32elmipvxworks.sh,
	* emulparams/elf32frvfd.sh, * emulparams/elf32l4300.sh,
	* emulparams/elf32lm32fd.sh, * emulparams/elf32lmip.sh,
	* emulparams/elf32lppc.sh, * emulparams/elf32lppclinux.sh,
	* emulparams/elf32lppcnto.sh, * emulparams/elf32lppcsim.sh,
	* emulparams/elf32lr5900.sh, * emulparams/elf32lr5900n32.sh,
	* emulparams/elf32lriscv.sh, * emulparams/elf32lriscv_ilp32.sh,
	* emulparams/elf32lriscv_ilp32f.sh, * emulparams/elf32lsmip.sh,
	* emulparams/elf32ltsmip.sh, * emulparams/elf32ltsmip_fbsd.sh,
	* emulparams/elf32ltsmipn32.sh, * emulparams/elf32ltsmipn32_fbsd.sh,
	* emulparams/elf32microblazeel.sh, * emulparams/elf32or1k_linux.sh,
	* emulparams/elf32ppc.sh, * emulparams/elf32ppc_fbsd.sh,
	* emulparams/elf32ppccommon.sh, * emulparams/elf32ppclinux.sh,
	* emulparams/elf32ppcnto.sh, * emulparams/elf32ppcsim.sh,
	* emulparams/elf32ppcvxworks.sh, * emulparams/elf32ppcwindiss.sh,
	* emulparams/elf32tilegx_be.sh, * emulparams/elf64_ia64_fbsd.sh,
	* emulparams/elf64_sparc_fbsd.sh, * emulparams/elf64_sparc_sol2.sh,
	* emulparams/elf64alpha_fbsd.sh, * emulparams/elf64alpha_nbsd.sh,
	* emulparams/elf64bmip-defs.sh, * emulparams/elf64bmip.sh,
	* emulparams/elf64btsmip.sh, * emulparams/elf64btsmip_fbsd.sh,
	* emulparams/elf64lppc.sh, * emulparams/elf64lriscv-defs.sh,
	* emulparams/elf64lriscv.sh, * emulparams/elf64lriscv_lp64.sh,
	* emulparams/elf64lriscv_lp64f.sh, * emulparams/elf64ltsmip.sh,
	* emulparams/elf64ltsmip_fbsd.sh, * emulparams/elf64ppc.sh,
	* emulparams/elf64ppc_fbsd.sh, * emulparams/elf64rdos.sh,
	* emulparams/elf64tilegx_be.sh, * emulparams/elf_i386.sh,
	* emulparams/elf_i386_be.sh, * emulparams/elf_i386_fbsd.sh,
	* emulparams/elf_i386_ldso.sh, * emulparams/elf_i386_nacl.sh,
	* emulparams/elf_i386_sol2.sh, * emulparams/elf_i386_vxworks.sh,
	* emulparams/elf_iamcu.sh, * emulparams/elf_k1om.sh,
	* emulparams/elf_k1om_fbsd.sh, * emulparams/elf_l1om.sh,
	* emulparams/elf_l1om_fbsd.sh, * emulparams/elf_x86_64.sh,
	* emulparams/elf_x86_64_cloudabi.sh,
	* emulparams/elf_x86_64_fbsd.sh, * emulparams/elf_x86_64_nacl.sh,
	* emulparams/elf_x86_64_sol2.sh, * emulparams/h8300helf.sh,
	* emulparams/h8300helf_linux.sh, * emulparams/h8300hnelf.sh,
	* emulparams/h8300self.sh, * emulparams/h8300self_linux.sh,
	* emulparams/h8300snelf.sh, * emulparams/h8300sxelf.sh,
	* emulparams/h8300sxelf_linux.sh, * emulparams/h8300sxnelf.sh,
	* emulparams/hppanbsd.sh, * emulparams/hppaobsd.sh,
	* emulparams/m32rlelf.sh, * emulparams/m32rlelf_linux.sh,
	* emulparams/m68kelfnbsd.sh, * emulparams/mn10300.sh,
	* emulparams/msp430X.sh, * emulparams/nds32belf.sh,
	* emulparams/nds32belf16m.sh, * emulparams/nds32belf_linux.sh,
	* emulparams/pjlelf.sh, * emulparams/ppclynx.sh,
	* emulparams/score7_elf.sh, * emulparams/shelf_fd.sh,
	* emulparams/shelf_linux.sh, * emulparams/shelf_nbsd.sh,
	* emulparams/shelf_uclinux.sh, * emulparams/shelf_vxworks.sh,
	* emulparams/shl.sh, * emulparams/shlelf.sh,
	* emulparams/shlelf_fd.sh, * emulparams/shlelf_nbsd.sh,
	* emulparams/shlelf_vxworks.sh: Use source_sh.
	* genscripts.sh: Adjust for changed parameters.  Emit dependencies
	for e*.c to .deps/*.Pc.
	(source_sh): New function, use it throughout to source scripts.
	* genscrba.sh (source_em): Use source_sh.
2019-04-13 12:13:22 +09:30
Alan Modra
50ff67e6cf ld TDIRS substitution
It is no longer true that autoconf/automake cannot substitute vars
with embedded new-lines.

	* configure.ac (TDIRS): Build up tdirs in this variable and
	AC_SUBST, also using AM_SUBST_NOTMAKE.
	* configure: Regenerate.
	* Makefile.am (DISTCLEANFILES): Remove tdirs.
	* Makefile.in: Regenerate.
2019-04-13 12:12:43 +09:30
Nick Clifton
3bbec4bd95 Fix thinko in linker documentation.
PR 24450
	* ld.texi (Output Section Attributes): Add ALIGN_WITH_INPUT to
	example of section attributes.
2019-04-12 13:15:21 +01:00
Faraz Shahbazker
035801cebe ld: Add --no-print-map-discarded option
Add a new option to disable the listing of discarded sections
in map file output.  The use case stems from a large application
built with -ffunction-sections --gc-sections where the list of
discarded sections blows up the map file output.  The default
behaviour remains to print discarded sections,  but the new option
allows us to disable it.

ld/
	* NEWS: Mention new option --no-print-map-discarded.
	* ld.h (ld_config_type) <print_map_discarded>: New field.
	* ldlang.c (lang_map): Conditionally output discarded sections
	in map files based on configuration option.
	* ldlex.h (option_values) <OPTION_PRINT_MAP_DISCARDED,
	OPTION_NO_PRINT_MAP_DISCARDED>: New.
	* ldmain.c (main): Enabled print_map_discarded by default.
	* lexsup.c (ld_options): Add new command-line options.
	(parse_args) <OPTION_NO_PRINT_MAP_DISCARDED,
	OPTION_PRINT_MAP_DISCARDED>: New cases.
	* ld.texi: Document new options.
	* testsuite/ld-gc/gc.exp: Add new test.
	* testsuite/ld-gc/skip-map-discarded.s: New file.
	* testsuite/ld-gc/skip-map-discarded.d: New file.
	* testsuite/ld-gc/skip-map-discarded.map: New file.
2019-04-11 10:16:31 -07:00
H.J. Lu
233a00833b x86: Add -z cet-report=[none|warning|error]
Add -z cet-report=[none|warning|error] to report the missing Intel
Indirect Branch Tracking (IBT) and Shadow Stack (SHSTK) properties
in input .note.gnu.property section.  -z cet-report=none, which is
the default, will make the linker not report missing properties in
input files.  -z cet-report=warning will make the linker issue a
warning for missing properties in input files.  -z cet-report=error
will make the linker issue an error for missing properties in input
files.  Note that -z ibt will turn off the missing IBT property report
and -z shstk will turn off the missing SHSTK property report.
Supported for Linux/i386 and Linux/x86_64.

bfd/

	* elf-linker-x86.h (elf_x86_cet_report): New.
	(elf_linker_x86_params): Add cet_report.
	* elfxx-x86.c (_bfd_x86_elf_link_setup_gnu_properties): Report
	missing IBT and SHSTK properties if needed.

ld/

	* ld.texi: Document -z cet-report=[none|warning|error].
	* emulparams/cet.sh: Add -z cet-report=[none|warning|error].
	* testsuite/ld-i386/i386.exp: Run -z cet-report=[warning|error]
	tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/property-x86-cet1.d: New file.
	* testsuite/ld-i386/property-x86-cet2a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet2b.d: Likewise.
	* testsuite/ld-i386/property-x86-cet3a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet3b.d: Likewise.
	* testsuite/ld-i386/property-x86-cet4a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet4b.d: Likewise.
	* testsuite/ld-i386/property-x86-cet5a.d: Likewise.
	* testsuite/ld-i386/property-x86-cet5b.d: Likewise.
	* testsuite/ld-i386/property-x86-cet6.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet.s: Likewise.
	* testsuite/ld-x86-64/property-x86-cet1-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet1.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet2b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet3a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet3a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet3b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet3b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet4a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet4a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet4b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet4b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5a-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5a.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5b-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet5b.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet6-x32.d: Likewise.
	* testsuite/ld-x86-64/property-x86-cet6.d: Likewise.
2019-04-11 08:21:30 -07:00
H.J. Lu
b3d7a86748 ld: Add -static-pie tests
Add -static-pie tests for DT_INIT_ARRAY, DT_FINI_ARRAY, DT_PREINIT_ARRAY
and IFUNC.

	* testsuite/config/default.exp (STATIC_PIE_LDFLAGS): New.  Set
	to "-static-pie" if target compiler supports it.
	* testsuite/ld-elf/elf.exp: Run -static-pie tests if
	$STATIC_PIE_LDFLAGS isn't empty.
	* testsuite/ld-ifunc/ifunc.exp: Likewise.
2019-04-11 06:52:03 -07:00
Tamar Christina
ce12121b63 AArch64: When DF_BIND_NOW don't use TLSDESC GOT value.
When using DF_BIND_NOW on AArch64 we don't reserve the GOT slot for a TLSDESC,
but we still emitted DT_TLSDESC_GOT and DT_TLSDESC_PLT.  This caused random
memory corruption as the "special" value of (bfd_vma)-1 would be set for
dt_tlsdesc_got.

Since we don't have a value of dt_tlsdesc_got I also don't emit DT_TLSDESC_PLT
now becuase it would point to an incomplete PLT. To be able to write the PLT
entry DT_TLSDESC_GOT is needed and since we don't have one we can't write the
PLT entry either.

It is my understanding that GLIBC doesn't need these two entries when not lazy
loading.  Conversely AArch32 does not reserve neither the GOT not the PLT slot
when doing DF_BIND_NOW.

AArch32 does not need these checks because these values are initialized to 0
and so the if (...) checks don't pass, but on AArch64 these are initialized
to (bfd_vma)-1 and thus we need some extra checks.

bfd/ChangeLog:

	PR ld/24302
	* elfnn-aarch64.c (elfNN_aarch64_size_dynamic_sections): Don't emit
	DT_TLSDESC_GOT and DT_TLSDESC_PLT when DF_BIND_NOW.
	(elfNN_aarch64_finish_dynamic_sections): Don't write PLT if DF_BIND_NOW.

ld/ChangeLog:

	PR ld/24302
	* testsuite/ld-aarch64/aarch64-elf.exp: Add new test.
	* testsuite/ld-aarch64/tls-relax-gdesc-le-now.d: New test.
2019-04-11 11:30:03 +01:00
H.J. Lu
795e3bb7de ld: Don't define __rel[a]_iplt_start/__rel[a]_iplt_end in PIE
__rel[a]_iplt_start and __rel[a]_iplt_end are defined to handle IFUNC in
static executables.  For PIE, since IFUNC is handled as the part of the
normal dynamic relocation processing, there is no need to define these
symbols in PIE.

	* scripttempl/elf.sc (CREATE_PIC): New.  Set for CREATE_SHLIB or
	CREATE_PIE.
	(__rel_iplt_start): Don't define for CREATE_PIC.
	(__rel_iplt_end): Likewise.
	(__rela_iplt_start): Likewise.
	(__rela_iplt_end): Likewise.
2019-04-10 18:36:22 -07:00
Alan Modra
e6aded7c34 Re: XFAIL PR ld/20995 tests for lynxos and nto targets
* testsuite/ld-elf/shared.exp: Don't xfail PR ld/20995 for
	powerpc-nto.
2019-04-10 15:32:56 +09:30
Alan Modra
53b81c6de1 cskyelf.em branch stub handling
This fixes the csky-elf ld-elf/pr21884 and ld-unique/pr21529 failures,
by disabling branch stubs for binary (and other non-csky) output.
The csky-linux target gets branch stubs off by default because
presumably there are reasons why branch stubs were disabled, but
rather than killing the support completely it can be enabled by
--branch-stub.

	* emultempl/cskyelf.em (csk_elf_before_parse): New function,
	setting use_branch_stub false for linux.
	(csky_elf_create_output_section_statements): Do emit this
	function and all others in the file for linux, plus the branch
	option control.  Disable branch stubs when non-ELF.
2019-04-10 13:30:32 +09:30
Alan Modra
c55b17b809 Fix some ld dependencies
In looking at the csky-elf vs. csky-linux differences, the first thing
I compared was csky_elf.sh and cskyelf_linux.sh.  Those files are
mostly the same but besides the real differences, annoyingly have some
lines ordered differently.  It's better in such cases to have one file
source the other, making differences plain.  This patch does that for
csky and microblaze, removes an unused variable defined in a few
places, and fixes ld makefile dependencies.

	* Makefile.am (eskyelf.c, eskyelf_linux.c): Depend on cskyelf.em.
	(ecskyelf_linux.c): Depend on cskyelf.sh.
	(eelf32microblazeel.c): Depend on elf32microblaze.sh.
	* Makefile.in: Regenerate.
	* emulparams/cskyelf.sh: Comment regarding cskelf_linux.sh.
	(PAGE_SIZE): Don't define.
	* emulparams/cskyelf_linux.sh: Source sckyelf.sh, leaving just
	the differing variable defs/undefs.
	* emulparams/elf32mcore.sh (PAGE_SIZE): Don't define.
	* emulparams/elf32microblaze.sh: Comment re. elf32microblazeel.sh.
	(OUTPUT_FORMAT): Use BIG_OUTPUT_FORMAT.
	(PAGE_SIZE): Don't define.
	* emulparams/elf32microblazeel.sh: Source elf32microblaze.sh,
	leaving just the differing OUTPUT_FORMAT.
2019-04-10 13:30:32 +09:30
Alan Modra
6feda62721 Regen BLD-POTFILES.in
* po/BLD-POTFILES.in: Regenerate.
2019-04-10 13:30:32 +09:30
H.J. Lu
c93c0e7f3f XFAIL PR ld/20995 tests for lynxos and nto targets
lynxos and nto targets don't support RELRO.

	* testsuite/ld-elf/shared.exp: XFAIL PR ld/20995 tests for
	lynxos and nto targets.
2019-04-08 13:55:37 -07:00
H.J. Lu
3ae61bb67d x86: Remove i386-*-kaos* and i386-*-chaos targets
Remove i386-*-kaos* and i386-*-chaos targets since they are no longer
supported by config.sub:

$ .../config.sub i386-kaos
Invalid configuration `i386-kaos': system `kaos' not recognized
$ .../config.sub i386-chaos
Invalid configuration `i386-chaos': system `chaos' not recognized
$

bfd/

	* config.bfd: Remove i[3-7]86-*-kaos* and i[3-7]86-*-chaos targets.

gas/

	* configure.tgt: Remove i386-*-kaos* and i386-*-chaos targets.
	* testsuite/gas/i386/i386.exp: Remove *-*-caos* and "*-*-kaos*
	check.

ld/

	* Makefile.am (ALL_EMULATION_SOURCES): Remove eelf_i386_chaos.c.
	(eelf_i386_chaos.c): Removed.
	* Makefile.in: Regenerated.
	* configure.tgt: Remove i[3-7]86-*-kaos*.
	* emulparams/elf_i386_chaos.sh: Removed.
2019-04-08 11:58:51 -07:00
H.J. Lu
da9b5f7be7 Use elf-x86.em for i386-moss and i386-beos
* emulparams/elf_i386_be.sh (EXTRA_EM_FILE): New.
	* emulparams/i386moss.sh (EXTRA_EM_FILE): Likewise.
2019-04-08 11:27:57 -07:00
Alan Modra
d970ee2bae Fix i386-lynxos and other runtime linker fails
Segfaults due to htab->params being NULL.

	* emulparams/elf64rdos.sh (EXTRA_EM_FILE): Define.
	* emulparams/i386lynx.sh (EXTRA_EM_FILE): Define.
	* emulparams/i386nto.sh (EXTRA_EM_FILE): Define.
2019-04-08 14:11:57 +09:30
H.J. Lu
5b9c07b278 x86: Move x86-specific linker options to elf_linker_x86_params
Remove x86-specific linker options from bfd_link_info and put them in
elf_linker_x86_params.  Add _bfd_elf_linker_x86_set_options to pass
x86-specific linker options from ld to bfd.

bfd/

	* elf-linker-x86.h: New file.
	* elf32-i386.c (elf_i386_convert_load_reloc): Use htab->params
	to get x86-specific linker options.
	* elf64-x86-64.c (elf_x86_64_convert_load_reloc): Likewise.
	(elf_x86_64_check_relocs): Likewise.
	(elf_x86_64_relocate_section): Likewise.
	(elf_x86_64_link_setup_gnu_properties): Likewise.
	* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Likewise.
	(_bfd_x86_elf_link_setup_gnu_properties): Likewise.
	(_bfd_elf_linker_x86_set_options): New function.
	* elfxx-x86.h: Include "elf-linker-x86.h".
	(elf_x86_link_hash_table): Add params.

include/

	* bfdlink.h (bfd_link_info): Remove x86-specific linker options.

ld/

	* Makefile.am (ELF_X86_DEPS): Add $(srcdir)/emultempl/elf-x86.em.
	(eelf_i386_sol2.c): Also depend on
	$(srcdir)/emultempl/solaris2-x86.em.
	(eelf_x86_64_sol2.c): Likewise.
	* Makefile.in: Regenerated.
	* emulparams/call_nop.sh: Set x86-specific linker options via
	params.
	* emulparams/cet.sh: Likewise.
	* emulparams/reloc_overflow.sh: Likewise.
	* emulparams/elf32_x86_64.sh (EXTRA_EM_FILE): New.  Set to
	"elf-x86".
	* emulparams/elf_i386.sh: Likewise.
	* emulparams/elf_i386_be.sh: Likewise.
	* emulparams/elf_i386_chaos.sh: Likewise.
	* emulparams/elf_i386_ldso.sh: Likewise.
	* emulparams/elf_i386_vxworks.sh: Likewise.
	* emulparams/elf_iamcu.sh: Likewise.
	* emulparams/elf_k1om.sh: Likewise.
	* emulparams/elf_l1om.sh: Likewise.
	* emulparams/elf_x86_64.sh: Likewise.
	* emulparams/elf_i386_sol2.sh (EXTRA_EM_FILE): Changed to
	"solaris2-x86".
	* emulparams/elf_x86_64_sol2.sh: Likewise.
	* emultempl/elf-x86.em: New file.
	* emultempl/solaris2-x86.em: Likewise.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_parse): Don't
	set link_info.call_nop_byte.
2019-04-06 07:25:31 -07:00
Alan Modra
c2b1c27545 PowerPC disassembler: Don't emit trailing spaces
When an instruction has operands, the PowerPC disassembler prints
spaces after the opcode so as to line up operands.  If the operands
are all optional and all default value, then no operands are printed,
leaving trailing spaces.  This patch fixes that.

opcodes/
	* ppc-dis.c (print_insn_powerpc): Delay printing spaces after
	opcode until first operand is output.
gas/
	* testsuite/gas/ppc/476.d: Remove trailing spaces.
	* testsuite/gas/ppc/a2.d: Likewise.
	* testsuite/gas/ppc/booke.d: Likewise.
	* testsuite/gas/ppc/booke_xcoff.d: Likewise.
	* testsuite/gas/ppc/e500.d: Likewise.
	* testsuite/gas/ppc/e500mc.d: Likewise.
	* testsuite/gas/ppc/e6500.d: Likewise.
	* testsuite/gas/ppc/htm.d: Likewise.
	* testsuite/gas/ppc/power6.d: Likewise.
	* testsuite/gas/ppc/power8.d: Likewise.
	* testsuite/gas/ppc/power9.d: Likewise.
	* testsuite/gas/ppc/vle.d: Likewise.
ld/
	* testsuite/ld-powerpc/tlsexe32.d: Remove trailing spaces.
	* testsuite/ld-powerpc/tlsopt5.d: Likewise.
	* testsuite/ld-powerpc/tlsopt5_32.d: Likewise.
2019-04-05 12:20:49 +10:30
Alan Modra
1c6aafe894 PR24411, Division is not accepted in MEMORY length expression
Let's hope no one has section names starting with '/' in scripts.  If
they do, this change to fix parsing of '/' in expressiongs will break
their project.

	PR 24411
	ldlex.l (SYMBOLNAMECHAR1): Don't match '/'.
	(<EXPRESSION>"/DISCARD/"): New.
2019-04-03 13:01:49 +10:30
Alan Modra
092da96ac4 ldlex.l tidy
Underscore was specified twice in all these patterns, and backslash
twice in some.  Flex warned about the $SYSROOT rule, which is covered
by earlier rules:  "ldlex.l:386: warning, rule cannot be matched".

	* ldlex.l: Formatting.
	(CMDFILENAMECHAR, CMDFILENAMECHAR1): Delete.
	(FILENAMECHAR1, SYMBOLNAMECHAR1, FILENAMECHAR, WILDCHAR),
	(NOCFILENAMECHAR): Remove duplicate chars.  Reorder.
	(SYMBOLCHARN): Likewise.  Rename to SYMBOLNAMECHAR.
	(<INPUTLIST>"$SYSROOT"..): Delete rule.
2019-04-03 13:01:32 +10:30
Max Filippov
2487ef07c2 bfd: xtensa: fix shrink_dynamic_reloc_sections for export-dynamic
shrink_dynamic_reloc_sections must remove PLT entry that was created for
an undefined weak symbol in the presence of --export-dynamic option when
relaxation coalesces literals pointing to that symbol. This fixes the
following assertion:

  ld: BFD (GNU Binutils) 2.31.1 internal error, aborting at
  elf32-xtensa.c:3292 in elf_xtensa_finish_dynamic_sections

2019-03-29  Max Filippov  <jcmvbkbc@gmail.com>
bfd/
	* elf32-xtensa.c (shrink_dynamic_reloc_sections): Add
	info->export_dynamic to the conditional.

ld/
	* testsuite/ld-xtensa/relax-undef-weak-pie-export-dynamic.d: New
	test definition.
	* testsuite/ld-xtensa/xtensa.exp
	(relax-undef-weak-pie-export-dynamic): Add new test.
2019-03-29 10:02:10 -07:00
marxin
7ea79cb3af Provide string description of definition, visibility and resolution in LTO plug-in.
ld/ChangeLog:

2019-02-26  Martin Liska  <mliska@suse.cz>

	* plugin.c (get_symbols): Add lto_kind_str, lto_resolution_str,
	lto_visibility_str and use then to inform about plugin-symbols.
	* testsuite/ld-plugin/plugin-12.d: Adjust expected pattern.
2019-03-26 15:22:01 +01:00
Tamar Christina
796d6298bb Arm: Fix Arm disassembler mapping symbol search.
Similar to the AArch64 patches the Arm disassembler has the same issues with
out of order sections but also a few short comings.

For one thing there are multiple code blocks to determine mapping symbols, and
they all work slightly different, and neither fully correct.  The first thing
this patch does is centralise the mapping symbols search into one function
mapping_symbol_for_insn.  This function is then updated to perform a search in
a similar way as AArch64.

Their used to be a value has_mapping_symbols which was used to determine the
default disassembly for objects that have no mapping symbols.  The problem with
the approach was that it was determining this value in the same loop that needed
it, which is why this field could take on the states -1, 0, 1 where -1 means
"don't know".  However this means that until you actually find a mapping symbol
or reach the end of the disassembly glob, you don't know if you did the right
action or not, and if you didn't you can't correct it anymore.

This is why the two jump-reloc-veneers-* testcases end up disassembling some
insn as data when they shouldn't.

Out of order here refers to an object file where sections are not listed in a
monotonic increasing VMA order.

The ELF ABI for Arm [1] specifies the following for mapping symbols:

  1) A text section must always have a corresponding mapping symbol at it's
     start.
  2) Data sections do not require any mapping symbols.
  3) The range of a mapping symbol extends from the address it starts on up to
     the next mapping symbol (exclusive) or section end (inclusive).

However there is no defined order between a symbol and it's corresponding
mapping symbol in the symbol table.  This means that while in general we look
up for a corresponding mapping symbol, we have to make at least one check of
the symbol below the address being disassembled.

When disassembling different PCs within the same section, the search for mapping
symbol can be cached somewhat.  We know that the mapping symbol corresponding to
the current PC is either the previous one used, or one at the same address as
the current PC.

However this optimization and mapping symbol search must stop as soon as we
reach the end or start of the section.  Furthermore if we're only disassembling
a part of a section, the search is a allowed to search further than the current
chunk, but is not allowed to search past it (The mapping symbol if there, must
be at the same address, so in practice we usually stop at PC+4).

lastly, since only data sections don't require a mapping symbol the default
mapping type should be DATA and not INSN as previously defined, however if the
binary has had all its symbols stripped than this isn't very useful.  To fix
this we determine the default based on the section flags.  This will allow the
disassembler to be more useful on stripped binaries.  If there is no section
than we assume you to be disassembling INSN.

[1] https://developer.arm.com/docs/ihi0044/latest/elf-for-the-arm-architecture-abi-2018q4-documentation#aaelf32-table4-7

binutils/ChangeLog:

	* testsuite/binutils-all/arm/in-order-all.d: New test.
	* testsuite/binutils-all/arm/in-order.d: New test.
	* testsuite/binutils-all/arm/objdump.exp: Support .d tests.
	* testsuite/binutils-all/arm/out-of-order-all.d: New test.
	* testsuite/binutils-all/arm/out-of-order.T: New test.
	* testsuite/binutils-all/arm/out-of-order.d: New test.
	* testsuite/binutils-all/arm/out-of-order.s: New test.

ld/ChangeLog:

	* testsuite/ld-arm/jump-reloc-veneers-cond-long.d: Update disassembly.
	* testsuite/ld-arm/jump-reloc-veneers-long.d: Update disassembly.

opcodes/ChangeLog:

	* arm-dis.c (struct arm_private_data): Remove has_mapping_symbols.
	(mapping_symbol_for_insn): Implement new algorithm.
	(print_insn): Remove duplicate code.
2019-03-25 15:05:53 +00:00
Sudakshina Das
4e5391148d [BFD, AArch64, x86] Improve warning for --force-bti
The AArch64 linker option to turn on BTI (--force-bti) warns in case there are
input objects which have a missing GNU NOTE section for BTI. This patch is trying
to improve the warnings that come out.

In order to do so, I propose adding a new argument to elf_merge_gnu_properties
and the backend function merge_gnu_properties. This new argument makes sure
that we now pass both the objects along with the properties to which they
belong to. The x86 backend function has also been updated to match this
change.

*** bfd/ChangeLog ***

2019-03-21  Sudakshina Das  <sudi.das@arm.com>

	* elf-bfd.h (struct elf_backend_data): Add argument to
	merge_gnu_properties.
	* elf-properties.c (elf_merge_gnu_properties): Add argument to
	itself and while calling bed->merge_gnu_properties.
	(elf_merge_gnu_property_list): Update the calls for
	elf_merge_gnu_properties.
	* elfnn-aarch64.c (elfNN_aarch64_merge_gnu_properties): Update handling
	of --force-bti warning and add argument.
	* elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Add
	warning.
	* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Add argument.
	* elfxx-x86.h (_bfd_x86_elf_merge_gnu_properties): Likewise in
	declaration.

*** ld/ChangeLog ***

2019-03-21  Sudakshina Das  <sudi.das@arm.com>

	* testsuite/ld-aarch64/aarch64-elf.exp: Add new test.
	* testsuite/ld-aarch64/bti-plt-1.s: Add .ifdef for PAC note section.
	* testsuite/ld-aarch64/bti-plt-6.d: Update warning.
	* testsuite/ld-aarch64/bti-plt-7.d: Likewise.
	* testsuite/ld-aarch64/bti-warn.d: New test.
2019-03-21 16:20:21 +00:00
Alan Modra
f84bd4655c Adjust pr14156 test for m68hc1*
The test section alignment is unnecessarily high, overflowing the
m68hc11 page used by .init code.

	* testsuite/ld-elf/fini2.s: Reduce alignment.
	* testsuite/ld-elf/fini3.s: Likewise.
	* testsuite/ld-elf/finin.s: Likewise.
	* testsuite/ld-elf/init2.s: Likewise.
	* testsuite/ld-elf/init3.s: Likewise.
	* testsuite/ld-elf/initn.s: Likewise.
	* testsuite/ld-elf/pr14156a.d: Don't xfail m68hc1*-* or xgate-*.
	* testsuite/ld-elf/pr14156b.d: Don't xfail xgate-*.
2019-03-21 22:19:51 +10:30
Alan Modra
2d3181c7c4 Add SORT_NONE to .init and .fini in scripts
The special case for .init and .fini in update_wild_statements is
ineffective for .init or .fini wildcards inside other output sections.
The special case needs to be on the wildcard, not the output section.
This patch is belt and braces, both fixing update_wild_statements and
the scripts.

	* scripttempl/alpha.sc, * scripttempl/armbpabi.sc,
	* scripttempl/crisaout.sc, * scripttempl/elf32cr16.sc,
	* scripttempl/elf32crx.sc, * scripttempl/elf32xc16x.sc,
	* scripttempl/elf32xc16xl.sc, * scripttempl/elf32xc16xs.sc,
	* scripttempl/elf64hppa.sc, * scripttempl/elf_chaos.sc,
	* scripttempl/elfarc.sc, * scripttempl/elfarcv2.sc,
	* scripttempl/elfd30v.sc, * scripttempl/elfm68hc11.sc,
	* scripttempl/elfm68hc12.sc, * scripttempl/elfm9s12z.sc,
	* scripttempl/elfmicroblaze.sc, * scripttempl/elfxgate.sc,
	* scripttempl/elfxtensa.sc, * scripttempl/epiphany_4x4.sc,
	* scripttempl/ft32.sc, * scripttempl/i386beos.sc,
	* scripttempl/iq2000.sc, * scripttempl/mcorepe.sc,
	* scripttempl/mep.sc, * scripttempl/mips.sc, * scripttempl/moxie.sc,
	* scripttempl/pe.sc, * scripttempl/pep.sc, * scripttempl/ppcpe.sc,
	* scripttempl/tic4xcoff.sc, * scripttempl/tic80coff.sc,
	* scripttempl/v850.sc, * scripttempl/v850_rh850.sc,
	* scripttempl/visium.sc, * scripttempl/xstormy16.sc: Add KEEP and
	SORT_NONE to .init and .fini wildcards.
	* scripttempl/elf32xc16x.sc,
	* scripttempl/elf32xc16xl.sc,
	* scripttempl/elf32xc16xs.sc: Add .fini wildcard.
	* scripttempl/elf_chaos.sc: Add .init output section.
	* scripttempl/elfd30v.sc: Remove duplicate .init.
	* scripttempl/elfm68hc11.sc, * scripttempl/elfm68hc12.sc,
	* scripttempl/elfm9s12z.sc, * scripttempl/elfxgate.sc: Remove
	duplicate .init, and add .fini wildcard.
	* scripttempl/ppcpe.sc (INIT, FINI): Delete.
	* ldlang.c (update_wild_statements): Special case .init and
	.fini in the wildcard, not the output section.
2019-03-21 22:19:20 +10:30
Alan Modra
980a2e42f7 lm32-linux ld testsuite fails
A number of the fails are due to ld supporting the creation of shared
libraries but not allowing linking against them without using an
option like -Bdynamic.
FAIL: Symbol export class test (final shared object)
FAIL: PROVIDE_HIDDEN test 4
FAIL: PROVIDE_HIDDEN test 6
FAIL: PROVIDE_HIDDEN test 10
FAIL: PROVIDE_HIDDEN test 12
FAIL: Build pr22471b.so
FAIL: Build pr22649-2b.so
FAIL: Build pr22649-2d.so
FAIL: PR ld/20828 dynamic symbols with section GC (plain)
FAIL: PR ld/20828 dynamic symbols with section GC (version script)
FAIL: PR ld/20828 dynamic symbols with section GC (versioned)
FAIL: PR ld/21233 dynamic symbols with section GC (--undefined)
FAIL: PR ld/21233 dynamic symbols with section GC (--require-defined)
FAIL: PR ld/21233 dynamic symbols with section GC (EXTERN)
FAIL: Build pr22150
FAIL: PR ld/14170
FAIL: Link using broken linker script
FAIL: pr17068 link --as-needed lib in group
FAIL: ld-gc/pr20022

	* emulparams/elf32lm32fd.sh (DYNAMIC_LINK): Undef.
2019-03-21 08:57:30 +10:30
Alan Modra
3b6c196682 Fix some dlx fails
Generic linker ELF targets using CREATE_OBJECT_SYMBOLS in their
scripts run into a problem.  The file symbols are created by
_bfd_generic_link_output_symbols in each object file, in the section
corresponding to the CREATE_OBJECT_SYMBOLS section, typically .text.
If it so happens that the output .text section is stripped due to
being empty, then elf.c:assign_section_numbers won't assign an ELF
section number and swap_out_syms will report "unable to find
equivalent output section" for the object symbols.  Fix this by
always keeping an output section with CREATE_OBJECT_SYMBOLS.

	* ldlang.c (lang_size_sections_1): Set SEC_KEEP on
	create_object_symbols_section.
	* testsuite/ld-elf/pr22319.d: Don't xfail dlx.
2019-03-21 08:45:28 +10:30
Alan Modra
28a66f07f0 csky ld testsuite fixes
* testsuite/ld-elf/merge.d: Remove csky from xfails, add moxie.
	* testsuite/ld-elf/pr21884.d: Remove csky from xfails.
	* testsuite/ld-elf/shared.exp: Add csky to list not xfailing pr22374.
	* testsuite/ld-unique/pr21529.d: Remove csky from xfails
2019-03-18 22:37:26 +10:30
Nick Clifton
1c82ed745b Update the documentation describing where the linker will attempt to locate plugins.
PR 24262
	* ld.texi (-plugin): Correct the path used to locate linker
	plugins.
2019-03-15 12:08:56 +00:00
Sudakshina Das
1dbade7441 [BFD, LD, AArch64, 3/3] Add --pac-plt to enable PLTs protected with PAC.
This is part of the patch series to add support for BTI and
PAC in AArch64 linker.

1) This patch adds new definitions of PAC enabled PLTs
and both BTI and PAC enabled PLTs.
2) It also defines the new dynamic tag DT_AARCH64_PAC_PLT
for the PAC enabled PLTs.
3) This patch adds a new ld command line option: --pac-plt.
In the presence of this option, the linker uses the PAC
enabled PLTs and marks with DT_AARCH64_PAC_PLT.
4) In case both BTI and PAC are enabled the linker should
pick PLTs enabled with both and also use dynamic tags for both.
All these are made according to the new AArch64 ELF ABI
https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4

*** bfd/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* elfnn-aarch64.c (PLT_PAC_ENTRY_SIZE, PLT_PAC_SMALL_ENTRY_SIZE): New.
	(PLT_BTI_PAC_ENTRY_SIZE, PLT_BTI_PAC_SMALL_ENTRY_SIZE): New.
	(setup_plt_values): Account for PAC or PAC and BTI enabled PLTs.
	(elfNN_aarch64_size_dynamic_sections): Add checks for PLT_BTI_PAC
	and PLT_PAC_PLT.
	(elfNN_aarch64_finish_dynamic_sections): Account for PLT_BTI_PAC.
	(get_plt_type): Add case for DT_AARCH64_PAC_PLT.
	(elfNN_aarch64_plt_sym_val): Add cases for PLT_BTI_PAC and PLT_PAC.

*** binutils/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* readelf.c (get_aarch64_dynamic_type): Add case for
	DT_AARCH64_PAC_PLT.
	(dynamic_section_aarch64_val): Likewise.

*** include/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* elf/aarch64.h (DT_AARCH64_PAC_PLT): New.

*** ld/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* NEWS: Document --pac-plt.
	* emultempl/aarch64elf.em (OPTION_PAC_PLT): New.
	(PARSE_AND_LIST_LONGOPTS, PARSE_AND_LIST_OPTIONS): Add pac-plt.
	(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_PAC_PLT.
	* testsuite/ld-aarch64/aarch64-elf.exp: Add the following tests.
	* testsuite/ld-aarch64/bti-pac-plt-1.d: New test.
	* testsuite/ld-aarch64/bti-pac-plt-2.d: New test.
	* testsuite/ld-aarch64/pac-plt-1.d: New test.
	* testsuite/ld-aarch64/pac-plt-2.d: New test.
	* testsuite/ld-aarch64/bti-plt-1.s: Add .ifndef directive.
2019-03-13 11:47:33 +00:00
Sudakshina Das
37c18eedff [BFD, LD, AArch64, 2/3] Add --force-bti to enable BTI and to select BTI enabled PLTs
This is part of the patch series to add support for BTI and
PAC in AArch64 linker.

1) This patch adds a new ld command line option: --force-bti.
In the presence of this option, the linker enables BTI with the
GNU_PROPERTY_AARCH64_FEATURE_1_BTI feature. This gives out warning
in case of missing gnu notes for BTI in inputs.
2) It also defines a new set of BTI enabled PLTs. These are used either
when all the inputs are marked with GNU_PROPERTY_AARCH64_FEATURE_1_BTI
or when the new --force-bti option is used. This required adding new
fields in elf_aarch64_link_hash_table so that we could make the PLT
related information more generic.
3) It also defines a dynamic tag DT_AARCH64_BTI_PLT. The linker uses
this whenever it picks BTI enabled PLTs.
All these are made according to the new AArch64 ELF ABI
https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4

*** bfd/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* bfd-in.h (aarch64_plt_type, aarch64_enable_bti_type): New.
	(aarch64_bti_pac_info): New.
	(bfd_elf64_aarch64_set_options): Add aarch64_bti_pac_info argument.
	(bfd_elf32_aarch64_set_options): Likewise.
	* bfd-in2.h: Regenerate
	* elfnn-aarch64.c (PLT_BTI_ENTRY_SIZE): New.
	(PLT_BTI_SMALL_ENTRY_SIZE, PLT_BTI_TLSDESC_ENTRY_SIZE): New.
	(elfNN_aarch64_small_plt0_bti_entry): New.
	(elfNN_aarch64_small_plt_bti_entry): New.
	(elfNN_aarch64_tlsdesc_small_plt_bti_entry): New.
	(elf_aarch64_obj_tdata): Add no_bti_warn and plt_type fields.
	(elf_aarch64_link_hash_table): Add plt0_entry, plt_entry and
	tlsdesc_plt_entry_size fields.
	(elfNN_aarch64_link_hash_table_create): Initialise the new fields.
	(setup_plt_values): New helper function.
	(bfd_elfNN_aarch64_set_options): Use new bp_info to set plt sizes and
	bti enable type.
	(elfNN_aarch64_allocate_dynrelocs): Use new size members instead of
	fixed macros.
	(elfNN_aarch64_size_dynamic_sections): Likewise and add checks.
	(elfNN_aarch64_create_small_pltn_entry): Use new generic pointers
	to plt stubs instead of fixed ones and update filling them according
	to the need for bti.
	(elfNN_aarch64_init_small_plt0_entry): Likewise.
	(elfNN_aarch64_finish_dynamic_sections): Likewise.
	(get_plt_type, elfNN_aarch64_get_synthetic_symtab): New.
	(elfNN_aarch64_plt_sym_val): Update size accordingly.
	(elfNN_aarch64_link_setup_gnu_properties): Set up plts if BTI GNU NOTE
	is set.
	(bfd_elfNN_get_synthetic_symtab): Define.
	(elfNN_aarch64_merge_gnu_properties): Give out warning with --force-bti
	and mising BTI NOTE SECTION.

*** binutils/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* readelf.c (get_aarch64_dynamic_type): New.
	(get_dynamic_type): Use above for EM_AARCH64.
	(dynamic_section_aarch64_val): New.
	(process_dynamic_section): Use above for EM_AARCH64.

*** include/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* elf/aarch64.h (DT_AARCH64_BTI_PLT): New.

*** ld/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>
	    Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* NEWS: Document --force-bti.
	* emultempl/aarch64elf.em (plt_type, bti_type, OPTION_FORCE_BTI): New.
	(PARSE_AND_LIST_SHORTOPTS, PARSE_AND_LIST_OPTIONS): Add force-bti.
	(PARSE_AND_LIST_ARGS_CASES): Handle OPTION_FORCE_BTI.
	* testsuite/ld-aarch64/aarch64-elf.exp: Add all the tests below.
	* testsuite/ld-aarch64/bti-plt-1.d: New test.
	* testsuite/ld-aarch64/bti-plt-1.s: New test.
	* testsuite/ld-aarch64/bti-plt-2.s: New test.
	* testsuite/ld-aarch64/bti-plt-2.d: New test.
	* testsuite/ld-aarch64/bti-plt-3.d: New test.
	* testsuite/ld-aarch64/bti-plt-4.d: New test.
	* testsuite/ld-aarch64/bti-plt-5.d: New test.
	* testsuite/ld-aarch64/bti-plt-6.d: New test.
	* testsuite/ld-aarch64/bti-plt-7.d: New test.
	* testsuite/ld-aarch64/bti-plt-so.s: New test.
	* testsuite/ld-aarch64/bti-plt.ld: New test.
2019-03-13 11:47:07 +00:00
Sudakshina Das
cd702818c6 [BFD, LD, AArch64, 1/3] Add support for GNU PROPERTIES in AArch64 for BTI and PAC
This is part of the patch series to add support for BTI and
PAC in AArch64 linker.

This patch implements the following:
1) This extends in the gnu property support in the linker for
AArch64 by defining backend hooks for elf_backend_setup_gnu_properties,
elf_backend_merge_gnu_properties and elf_backend_parse_gnu_properties.
2) It defines AArch64 specific GNU property
GNU_PROPERTY_AARCH64_FEATURE_1_AND and 2 bit for BTI and PAC in it.
3) It also adds support in readelf.c to read and print these new
GNU properties in AArch64.
All these are made according to the new AArch64 ELF ABI
https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4

*** bfd/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* elf-properties.c (_bfd_elf_link_setup_gnu_properties): Exclude
	linker created inputs from merge.
	* elfnn-aarch64.c (struct elf_aarch64_obj_tdata): Add field for
	GNU_PROPERTY_AARCH64_FEATURE_1_AND properties.
	(elfNN_aarch64_link_setup_gnu_properties): New.
	(elfNN_aarch64_merge_gnu_properties): New.
	(elf_backend_setup_gnu_properties): Define for AArch64.
	(elf_backend_merge_gnu_properties): Likewise.
	* elfxx-aarch64.c (_bfd_aarch64_elf_link_setup_gnu_properties): Define.
	(_bfd_aarch64_elf_parse_gnu_properties): Define.
	(_bfd_aarch64_elf_merge_gnu_properties): Define.
	* elfxx-aarch64.h (_bfd_aarch64_elf_link_setup_gnu_properties): Declare.
	(_bfd_aarch64_elf_parse_gnu_properties): Declare.
	(_bfd_aarch64_elf_merge_gnu_properties): Declare.
	(elf_backend_parse_gnu_properties): Define for AArch64.

*** binutils/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* readelf.c (decode_aarch64_feature_1_and): New.
	(print_gnu_property_note): Add case for AArch64 gnu notes.

*** include/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* elf/common.h (GNU_PROPERTY_AARCH64_FEATURE_1_AND): New.
	(GNU_PROPERTY_AARCH64_FEATURE_1_BTI): New.
	(GNU_PROPERTY_AARCH64_FEATURE_1_PAC): New.

*** ld/ChangeLog ***

2019-03-13  Sudakshina Das  <sudi.das@arm.com>

	* NEWS: Document GNU_PROPERTY_AARCH64_FEATURE_1_BTI and
	GNU_PROPERTY_AARCH64_FEATURE_1_PAC.
	* testsuite/ld-aarch64/aarch64-elf.exp: Add run commands for new tests.
	* testsuite/ld-aarch64/property-bti-pac1.d: New test.
	* testsuite/ld-aarch64/property-bti-pac1.s: New test.
	* testsuite/ld-aarch64/property-bti-pac2.d: New test.
	* testsuite/ld-aarch64/property-bti-pac2.s: New test.
	* testsuite/ld-aarch64/property-bti-pac3.d: New test.
2019-03-13 11:47:00 +00:00
H.J. Lu
44b27f959a x86: Properly set IBT and SHSTK properties for -z ibt/shstk
There should be no AND properties if some input doesn't have them.  We
should set IBT and SHSTK properties for -z ibt and -z shstk if needed.

bfd/

	PR ld/24322
	* elfxx-x86.c (_bfd_x86_elf_merge_gnu_properties): Properly
	merge GNU_PROPERTY_X86_FEATURE_1_[IBT|SHSTK].

ld/

	PR ld/24322
	* testsuite/ld-i386/i386.exp: Run PR ld/24322 tests.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/pr24322a.d: New file.
	* testsuite/ld-i386/pr24322b.d: Likewise.
	* testsuite/ld-x86-64/pr24322a-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24322a.d: Likewise.
	* testsuite/ld-x86-64/pr24322b-x32.d: Likewise.
	* testsuite/ld-x86-64/pr24322b.d: Likewise.
	* testsuite/ld-x86-64/pr24322a.s: Likewise.
	* testsuite/ld-x86-64/pr24322b.s: Likewise.
	* testsuite/ld-x86-64/pr24322c.s: Likewise.
2019-03-13 14:38:29 +08:00
Nick Bowler
912ebfa0d7 Allow the use of the ORIGIN and LENGTH attributes in expressions inside MEMORY regions.
PR 24289
	* ldexp.c (fold_name): Allow lookups of the LENGTH and ORIGIN
	attributes during the first phase.
2019-03-06 15:20:29 +00:00
Andreas Krebbel
24801b1576 Revert "Add support to GNU ld to separate got related plt entries"
bfd/ChangeLog:

2019-03-01  Andreas Krebbel  <krebbel@linux.ibm.com>

	This reverts commit 5a12586d44.
	2019-01-14  Maamoun Tarsha  <maamountk@hotmail.com>

	PR 20113
	* elf32-s390.c (allocate_dynrelocs): Update comment.

ld/ChangeLog:

2019-03-01  Andreas Krebbel  <krebbel@linux.ibm.com>

	This reverts commit 5a12586d44.
	2019-01-14  Maamoun Tarsha  <maamountk@hotmail.com>

	PR 20113
	* emulparams/elf64_s390.sh (SEPARATE_GOTPLT): Define.
	* emulparams/elf_s390.sh (SEPARATE_GOTPLT): Define.
	* testsuite/ld-s390/gotreloc_31-1.dd: Update expected output.
	* testsuite/ld-s390/tlsbin.dd: Likewise.
	* testsuite/ld-s390/tlsbin.rd: Likewise.
	* testsuite/ld-s390/tlsbin.sd: Likewise.
	* testsuite/ld-s390/tlsbin_64.dd: Likewise.
	* testsuite/ld-s390/tlsbin_64.rd: Likewise.
	* testsuite/ld-s390/tlsbin_64.sd: Likewise.
	* testsuite/ld-s390/tlspic.dd: Likewise.
	* testsuite/ld-s390/tlspic.rd: Likewise.
	* testsuite/ld-s390/tlspic.sd: Likewise.
	* testsuite/ld-s390/tlspic_64.dd: Likewise.
	* testsuite/ld-s390/tlspic_64.rd: Likewise.
	* testsuite/ld-s390/tlspic_64.sd: Likewise.
	* testsuite/ld-s390/s390.exp: Skip s390 tests for tpf targets.
2019-03-01 15:35:00 +01:00
H.J. Lu
5cfe428cd1 x86-64: Skip protected check on symbol defined by linker
Skip symbol defined by linker when checking copy reloc on protected
symbol.

bfd/

	PR ld/24276
	* elf64-x86-64.c (elf_x86_64_check_relocs): Skip symbol defined
	by linker when checking copy reloc on protected symbol.

ld/

	PR ld/24276
	* testsuite/ld-i386/i386.exp: Run PR ld/24276 test.
	* testsuite/ld-x86-64/x86-64.exp: Likewise.
	* testsuite/ld-i386/pr24276.dso: New file.
	* testsuite/ld-i386/pr24276.warn: Likewise.
	* testsuite/ld-x86-64/pr24276.dso: Likewise.
	* testsuite/ld-x86-64/pr24276.warn: Likewise.
2019-02-27 11:53:27 -08:00
Alan Modra
160eba9301 PowerPC __tls_get_addr arg parsing
The syntax we ended up with for -m32 -fPIC calls to __tls_get_addr is
rather weird.
    bl __tls_get_addr+0x8000(gd0@tlsgd)@plt
This came about by accident, probably due to requiring the arg reloc
before the call reloc.

Of course the @plt really belongs with __tls_get_addr since it affects
the call rather than the call arg, and it isn't a great deal of
trouble to ensure the relocs are emitted in the correct order.  This
patch supports a newer syntax, like so:
    bl __tls_get_addr+0x8000@plt(gd0@tlsgd)

gas/
	* config/tc-ppc.c (parse_tls_arg): New function, extracted..
	(md_assembler): ..from here.  Call it after parsing other
	suffix modifiers too.
ld/
	* testsuite/ld-powerpc/tls32.s: Test new @plt syntax.
2019-02-21 18:05:05 +10:30
Max Filippov
eed62915fd bfd: xtensa: fix callx relaxation
Big section alignment requirements between source and destination of a
long call can result in making call range bigger than what's reachable
by the call opcode. Add biggest section alignment of sections between
the call site and call destination to the call distance when making
long call relaxation decision.

2019-02-20  Eric Tsai  <erictsai@cadence.com>
bfd/
	* elf32-xtensa.c (is_resolvable_asm_expansion): Scan output
	sections between the call site and call destination and adjust
	call distance by the largest alignment.

ld/
	* testsuite/ld-xtensa/call_overflow.d: New test definition.
	* testsuite/ld-xtensa/call_overflow1.s: New test source.
	* testsuite/ld-xtensa/call_overflow2.s: New test source.
	* testsuite/ld-xtensa/call_overflow3.s: New test source.
	* testsuite/ld-xtensa/xtensa.exp: Add call_overflow test.
2019-02-20 02:51:01 -08:00
Thomas Schwinge
abc163a464 [ld, hurd] Remove 'ld-elf/elf.exp' XFAILs
... as a follow-up to commit d981640286 "Run more
ld tests when not native", which replaced by a proper solution the following
mess before present in 'ld/configure.host':

    -*-*-gnu*)
    -  # When creating static executables, we ought to use crt0.o instead of crt1.o,
    -  # <http://www.gnu.org/software/hurd/open_issues/binutils.html#static>,
    -  # but the testing infrastructure is not prepared for that.  This is not
    -  # relevant for most tests, and the few remaining ones have been XFAILed.
    -  HOSTING_CRT0='[...]'
    -  HOSTING_LIBS='[...]'

	ld/
	* testsuite/ld-elf/elf.exp: Remove Hurd XFAILs.
2019-02-14 17:51:22 +01:00