Commit Graph

9052 Commits

Author SHA1 Message Date
Alan Modra 87c69f9732 Rename PowerPC64 pcrel GOT TLS relocations
These relocations should have had REL in their names, to reflect the
fact that they are pc-relative.  Fix that now by adding _PCREL.
I've added some back-compatibility code to support anyone using
.reloc with the old relocations.

include/
	* elf/ppc64.h (elf_ppc64_reloc_type): Rename
	R_PPC64_GOT_TLSGD34 to R_PPC64_GOT_TLSGD_PCREL34,
	R_PPC64_GOT_TLSLD34 to R_PPC64_GOT_TLSLD_PCREL34,
	R_PPC64_GOT_TPREL34 to R_PPC64_GOT_TPREL_PCREL34, and
	R_PPC64_GOT_DTPREL34 to R_PPC64_GOT_DTPREL_PCREL34.
bfd/
	* reloc.c: Rename
	BFD_RELOC_PPC64_GOT_TLSGD34 to BFD_RELOC_PPC64_GOT_TLSGD_PCREL34,
	BFD_RELOC_PPC64_GOT_TLSLD34 to BFD_RELOC_PPC64_GOT_TLSLD_PCREL34,
	BFD_RELOC_PPC64_GOT_TPREL34 to BFD_RELOC_PPC64_GOT_TPREL_PCREL34,
	BFD_RELOC_PPC64_GOT_DTPREL34 to BFD_RELOC_PPC64_GOT_DTPREL_PCREL34.
	* elf64-ppc.c: Update throughout for reloc renaming.
	(ppc64_elf_reloc_name_lookup): Handle old reloc names.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
gas/
	* config/tc-ppc.c: Update throughout for reloc renaming.
elfcpp/
	* powerpc.h: Rename
	R_PPC64_GOT_TLSGD34 to R_PPC64_GOT_TLSGD_PCREL34,
	R_PPC64_GOT_TLSLD34 to R_PPC64_GOT_TLSLD_PCREL34,
	R_PPC64_GOT_TPREL34 to R_PPC64_GOT_TPREL_PCREL34, and
	R_PPC64_GOT_DTPREL34 to R_PPC64_GOT_DTPREL_PCREL34.
gold/
	* powerpc.cc: Update throughout for reloc renaming.
2020-06-06 14:44:32 +09:30
H.J. Lu 8a4ba3a142 bfin: Initialize picrel to silence GCC warning 2020-06-05 06:22:56 -07:00
H.J. Lu 981f151804 bfin: Skip non SEC_ALLOC section
* elf32-bfin.c (bfinfdpic_relocate_section): Skip non SEC_ALLOC
	section.
2020-06-05 05:30:25 -07:00
Nick Clifton 9c65eeacd8 Fix a use before initialization bug in the pdp11.c source file.
* pdp11.c (aout_link_add_symbols): Fix use before initialisation
	bug.
2020-06-05 10:08:26 +01:00
Nelson Chu 412857647f RISC-V: The object without priv spec attributes can be linked with any object.
bfd/
	* elfnn-riscv.c (riscv_merge_attributes): Add new boolean
	priv_may_conflict, in_priv_zero and out_priv_zero to decide whether
	the object can be linked according to it's priv attributes.  The object
	without any priv spec attributes can be linked with others.  If the first
	input object doesn't contain any priv attributes, then we need to copy
	the setting from the next input one.  Also report more detailed error
	messages to user.

	ld/
	* testsuite/ld-riscv-elf/attr-merge-priv-spec.d: Rename to
	attr-merge-priv-spec-01.d.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-c.s: Set priv spec
	to 1.11.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-d.s: Empty priv spec
	setting.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-02.d: New testcase.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-03.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-01.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-02.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-03.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-04.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-05.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-failed-06.d: Likewise.
	* testsuite/ld-riscv-elf/ld-riscv-elf.exp: Updated.
2020-06-05 12:20:53 +08:00
Stephen Casner a975c88e65 Extend pdp11-aout symbol table format and code for .stab symbols.
* bfd/pdp11.c (pdp11_external_nlist): Repurposed e_unused to e_desc.
(N_STAB, is_stab): Needed new function is_stab to disambiguate
normal vs. .stab symbol table type values, replacing N_STAB mask.
(translate_from_native_sym_flags): Determine correct section for
different .stab types.
(translate_to_native_sym_flags): Leave .stab types intact.
(translate_symbol_table): Error if symbol indicates overlay;
store desc field from .stab symbols.
(write_syms): Output desc field with symbol.
(aout_link_check_ar_symbols): Skip .stab symbols.
(aout_link_add_symbols): Correctly distinguish .stab symbols.
(aout_link_write_other_symbol): Write 0 for desk and ovly fields.
(aout_link_write_symbols): Write 0 for desk and ovly fields;
correctly distinguish .stab symbols and select calculate their
section and value; and copy desc and ovly fields from input symbol
to output symbol.
2020-06-04 18:12:32 -07:00
Stephen Casner 3b9313c420 Correct a comment.
* bfd/aoutx.h (translate_symbol_table): Comment had external and
internal swapped.
* bfd/pdp11.c (translate_symbol_table): Likewise.
2020-06-04 12:34:17 -07:00
H.J. Lu add5f777de x86: Remove target_id from elf_x86_link_hash_table
Since target_id in elf_x86_link_hash_table is the same as hash_table_id
in elf_link_hash_table, we can use elf.hash_table_id instead of target_id.

	* elfxx-x86.h (elf_x86_link_hash_table): Remove target_id.
	(is_x86_elf): Check elf.hash_table_id instead of target_id.
	* elfxx-x86.c (_bfd_x86_elf_link_hash_table_create): Updated.
2020-06-04 09:56:25 -07:00
H.J. Lu c4b126b87a ELF: Don't check relocations in non-loaded, non-alloced sections
Don't do anything special with non-loaded, non-alloced sections.
In particular, any relocs in such sections should not affect GOT
and PLT reference counting (ie. we don't allow them to create GOT
or PLT entries), there's no possibility or desire to optimize TLS
relocs, and there's not much point in propagating relocs to shared
libs that the dynamic linker won't relocate.

Since check_relocs is no longer called on non-loaded, non-alloced
sections, remove SEC_ALLOC check.  Resolve relocation in debug section
against symbol defined in shared library to 0.

bfd/

	PR ld/26080
	* elf-m10300.c (mn10300_elf_relocate_section): Resolve relocation
	in debug section against symbol defined in shared library to 0.
	* elf32-i386.c (elf_i386_check_relocs): Remove SEC_ALLOC check.
	* elf32-lm32.c (lm32_elf_check_relocs): Likewise.
	* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
	* elf32-nds32.c (nds32_elf_check_relocs): Likewise.
	* elf32-nios2.c (nios2_elf32_check_relocs): Likewise.
	* elf32-or1k.c (or1k_elf_check_relocs): Likewise.
	* elf32-ppc.c (ppc_elf_check_relocs): Likewise.
	* elf32-sh.c (sh_elf_check_relocs): Likewise.
	* elf32-xtensa.c (elf_xtensa_check_relocs): Likewise.
	* elf64-alpha.c (elf64_alpha_check_relocs): Likewise.
	* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
	* elf32-vax.c (elf_vax_check_relocs): Set non_got_ref for non-GOT
	reference.
	(elf_vax_adjust_dynamic_symbol): Generate a copy reloc only if
	there is non-GOT reference.
	* elflink.c (_bfd_elf_link_check_relocs): Skip non-loaded,
	non-alloced sections.

ld/

	PR ld/26080
	* testsuite/ld-elf/comm-data.exp: Remove copy_reloc.
	* testsuite/ld-elf/comm-data2r.rd: Removed.
	* testsuite/ld-elf/comm-data2r.sd: Likewise.
	* testsuite/ld-elf/comm-data2r.xd: Likewise.
2020-06-04 05:58:47 -07:00
Alan Modra 7eea15c514 Correct PR number in changelog 2020-06-04 10:20:48 +09:30
Stephen Casner 31af1e68af Copy several years of fixes from bfd/aoutx.h to bfd/pdp11.c.
* pdp11.c (some_aout_object_p): 4c1534c7a2 - Don't set EXEC_P for
files with relocs.
(aout_get_external_symbols): 6b8f0fd579 - Return if count is zero.
0301ce1486 PR 22306 - Handle stringsize of zero, and error for any
other size that doesn't qcover the header word.
bf82069dce PR 23056 - Allocate an extra byte at the end of the
string table, and zero it.
(translate_symbol_table): 0d329c0a83 PR 22887 - Print an error
message and set bfd_error on finding an invalid name string offset.
(add_to_stringtab): INLINE -> inline
(pdp11_aout_swap_reloc_in): 116acb2c26 PR 22887 - Correct r_index
bound check.
(squirt_out_relocs): e2996cc315 PR 20921 - Check for and report
any relocs that could not be recognised.
92744f0580 PR 20929 - Check for relocs	without an associated symbol.
(find_nearest_line):  808346fcfc PR 23055 - Check that the symbol
name exists and is long enough, before attempting to see if it is
for a .o file.
c386442122 - Correct case for N_SO being the last symbol.
50455f1ab2 PR 20891 - Handle the case where the main file name
and the directory name are both empty.
e82ab856bb PR 20892 - Handle the case where function name is empty.
(aout_link_add_symbols): e517df3dbf PR 19629 - Check for out of
range string table offsets.
531336e3a0 PR 20909 - Fix off-by-one error in check for an
illegal string offset.
(aout_link_includes_newfunc): Add comment.
(pdp11_aout_link_input_section): ad756e3f9e - Return with an error
on unexpected relocation type rather than ASSERT.
2020-06-03 17:43:45 -07:00
H.J. Lu d4d8aee345 nios2: Call _bfd_elf_maybe_set_textrel to set DF_TEXTREL
Call _bfd_elf_maybe_set_textrel to set DF_TEXTREL by scanning dynamic
relocations in read-only section.

	PR ld/26066
	* elf32-nios2.c (nios2_elf32_size_dynamic_sections): Call
	_bfd_elf_maybe_set_textrel to set DF_TEXTREL.
2020-06-03 09:25:51 -07:00
H.J. Lu 58ee44efbc nios2: Don't check relocations in non-loaded, non-alloced sections
Don't do anything special with non-loaded, non-alloced sections.
In particular, any relocs in such sections should not affect GOT
and PLT reference counting (ie. we don't allow them to create GOT
or PLT entries), there's no possibility or desire to optimize TLS
relocs, and there's not much point in propagating relocs to shared
libs that the dynamic linker won't relocate.

	PR ld/26066
	* elf32-nios2.c (nios2_elf32_check_relocs): Skip non-loaded,
	non-alloced sections.
2020-06-03 09:21:14 -07:00
H.J. Lu 9a6896021d frv: Don't generate dynamic relocation for non SEC_ALLOC sections
Don't generate dynamic relocations for non SEC_ALLOC sections because
run-time loader won't process them.

	* elf32-frv.c (elf32_frv_relocate_section): Don't generate
	dynamic relocations for non SEC_ALLOC sections.
2020-06-03 09:12:53 -07:00
H.J. Lu 50d036364f arc: Don't generate dynamic relocation for non SEC_ALLOC sections
Don't generate dynamic relocations for non SEC_ALLOC sections because
run-time loader won't process them.

	* elf32-arc.c (elf_arc_relocate_section): Don't generate dynamic
	relocations for non SEC_ALLOC sections.
2020-06-03 09:10:03 -07:00
Gunther Nikl 0bff75284e This patch set for the generic BFD a.out backend removes a dead #define and makes aoutx.h self-contained: [PATCH 1/2]: bfd: remove unused NO_WRITE_HEADER_KLUDGE #define [PATCH 2/2]: bfd: make aoutx.h self-contained
* aout64.c (BMAGIC, QMAGIC): Do not define.
	* aoutx.h (N_IS_BMAGIC, N_SET_QMAGIC): New defines.
	(NAME (aout, some_aout_object_p)): Use N_IS_QMAGIC and N_IS_BMAGIC
	to check the file format.
	(adjust_z_magic): Use N_SET_QMAGIC to set file format.
	* i386aout.c (NO_WRITE_HEADER_KLUDGE): Delete define.
	* libaout.h (NO_WRITE_HEADER_KLUDGE): Do not define.
2020-06-03 15:24:58 +01:00
H.J. Lu d49e5065ed ELF: Consolidate maybe_set_textrel
All maybe_set_textrel implementations are the same.  Consolidate them
to a single _bfd_elf_maybe_set_textrel.

	* elf-bfd.h (_bfd_elf_maybe_set_textrel): New
	* elf32-arm.c (maybe_set_textrel): Removed.
	(elf32_arm_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-csky.c (maybe_set_textrel): Removed.
	(csky_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-hppa.c (maybe_set_textrel): Removed.
	(elf32_hppa_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-lm32.c (maybe_set_textrel): Removed.
	(lm32_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-m32r.c (maybe_set_textrel): Removed.
	(m32r_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-metag.c (maybe_set_textrel): Removed.
	(elf_metag_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-nds32.c (maybe_set_textrel): Removed.
	(nds32_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-or1k.c (maybe_set_textrel): Removed.
	(or1k_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-ppc.c (maybe_set_textrel): Removed.
	(ppc_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-s390.c (maybe_set_textrel): Removed.
	(elf_s390_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-sh.c (maybe_set_textrel): Removed.
	(sh_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-tic6x.c (maybe_set_textrel): Removed.
	(elf32_tic6x_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf32-tilepro.c (maybe_set_textrel): Removed.
	(tilepro_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf64-ppc.c (maybe_set_textrel): Removed.
	(ppc64_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elf64-s390.c (maybe_set_textrel): Removed.
	(elf_s390_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elfnn-aarch64.c (maybe_set_textrel): Removed.
	(elfNN_aarch64_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elfnn-riscv.c (maybe_set_textrel): Removed.
	(riscv_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elfxx-sparc.c (maybe_set_textrel): Removed.
	(_bfd_sparc_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elfxx-tilegx.c (maybe_set_textrel): Removed.
	(tilegx_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elfxx-x86.c (maybe_set_textrel): Removed.
	(_bfd_x86_elf_size_dynamic_sections): Replace maybe_set_textrel
	with _bfd_elf_maybe_set_textrel.
	* elflink.c (_bfd_elf_maybe_set_textrel): New.
2020-06-03 07:07:24 -07:00
H.J. Lu ad172eaa4f ELF: Copy dyn_relocs in _bfd_elf_link_hash_copy_indirect
Copy dyn_relocs in _bfd_elf_link_hash_copy_indirect instead of in each
target backend.

	PR ld/26067
	* elf32-arm.c (elf32_arm_copy_indirect_symbol): Don't copy
	dyn_relocs.
	* elf32-csky.c (csky_elf_copy_indirect_symbol): Likewise.
	* elf32-hppa.c (elf32_hppa_copy_indirect_symbol): Likewise.
	* elf32-metag.c (elf_metag_copy_indirect_symbol): Likewise.
	* elf32-microblaze.c (microblaze_elf_copy_indirect_symbol):
	Likewise.
	* elf32-nds32.c (nds32_elf_copy_indirect_symbol): Likewise.
	* elf32-nios2.c (nios2_elf32_copy_indirect_symbol): Likewise.
	* elf32-or1k.c (or1k_elf_copy_indirect_symbol): Likewise.
	* elf32-s390.c (elf_s390_copy_indirect_symbol): Likewise.
	* elf32-sh.c (sh_elf_copy_indirect_symbol): Likewise.
	* elf32-tilepro.c (tilepro_elf_copy_indirect_symbol): Likewise.
	* elf64-s390.c (elf_s390_copy_indirect_symbol): Likewise.
	* elfnn-aarch64.c (elfNN_aarch64_copy_indirect_symbol): Likewise.
	* elfnn-riscv.c (riscv_elf_copy_indirect_symbol): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_copy_indirect_symbol): Likewise.
	* elfxx-tilegx.c (tilegx_elf_copy_indirect_symbol): Likewise.
	* elfxx-x86.c (_bfd_x86_elf_copy_indirect_symbol): Likewise.
	* elf32-lm32.c (lm32_elf_copy_indirect_symbol): Removed.
	(elf_backend_copy_indirect_symbol): Likewise.
	* elf32-m32r.c (m32r_elf_copy_indirect_symbol): Removed.
	(elf_backend_copy_indirect_symbol): Likewise.
	* elflink.c (_bfd_elf_link_hash_copy_indirect): Copy dyn_relocs.
2020-06-03 07:03:59 -07:00
H.J. Lu 5dbc8b372f ELF: Consolidate readonly_dynrelocs
All readonly_dynrelocs implementations are the same.  Consolidate them
to a single _bfd_elf_readonly_dynrelocs.

	PR ld/26067
	* elf-bfd.h (_bfd_elf_readonly_dynrelocs): New.
	* elf32-arm.c (readonly_dynrelocs): Removed.
	(maybe_set_textrel): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	* elf32-csky.c (readonly_dynrelocs): Removed.
	(maybe_set_textrel): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	*  elf32-hppa.c(readonly_dynrelocs): Removed.
	(alias_readonly_dynrelocs): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-lm32.c (readonly_dynrelocs): Removed.
	(lm32_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-m32r.c (readonly_dynrelocs): Removed.
	(m32r_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-metag.c (readonly_dynrelocs): Removed.
	(elf_metag_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-microblaze.c (readonly_dynrelocs): Removed.
	(microblaze_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	* elf32-nds32.c (readonly_dynrelocs): Removed.
	(nds32_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-or1k.c (readonly_dynrelocs): Removed.
	(or1k_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	* elf32-ppc.c (readonly_dynrelocs): Removed.
	(alias_readonly_dynrelocs): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	(ppc_elf_adjust_dynamic_symbol): Likewise.
	(maybe_set_textrel): Likewise.
	* elf32-s390.c (readonly_dynrelocs): Removed.
	(elf_s390_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-sh.c (readonly_dynrelocs): Removed.
	(sh_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf32-tic6x.c (readonly_dynrelocs): Removed.
	(maybe_set_textrel): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	* elf32-tilepro.c (readonly_dynrelocs): Removed.
	(tilepro_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elf64-ppc.c (readonly_dynrelocs): Removed.
	(alias_readonly_dynrelocs): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	(ppc64_elf_adjust_dynamic_symbol): Likewise.
	(maybe_set_textrel): Likewise.
	* elf64-s390.c (readonly_dynrelocs): Removed.
	(elf_s390_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elflink.c (_bfd_elf_readonly_dynrelocs): New.
	* elfnn-aarch64.c (readonly_dynrelocs): Removed.
	(maybe_set_textrel): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	* elfnn-riscv.c (readonly_dynrelocs): Removed.
	(riscv_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elfxx-sparc.c (readonly_dynrelocs): Removed.
	(_bfd_sparc_elf_adjust_dynamic_symbol): Replace
	readonly_dynrelocs with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elfxx-tilegx.c (readonly_dynrelocs): Removed.
	(tilegx_elf_adjust_dynamic_symbol): Replace readonly_dynrelocs
	with _bfd_elf_readonly_dynrelocs.
	(maybe_set_textrel): Likewise.
	* elfxx-x86.c (readonly_dynrelocs): Removed.
	(maybe_set_textrel): Replace readonly_dynrelocs with
	_bfd_elf_readonly_dynrelocs.
	(_bfd_x86_elf_adjust_dynamic_symbol): Likewise.
2020-06-03 07:01:13 -07:00
H.J. Lu 433953ffa1 x86: Silence -fsanitize=undefined
Replace "&(EH)->elf" with "(struct elf_link_hash_entry *) (EH)" to
silence -fsanitize=undefined.

	* elfxx-x86.h (GENERATE_DYNAMIC_RELOCATION_P): Replace
	"&(EH)->elf" with "(struct elf_link_hash_entry *) (EH)".
2020-06-03 06:32:24 -07:00
Alan Modra 675800364b PR26069, strip/objcopy misaligned address accesses
PR 26069
	PR 18758
	* peicode.h (pe_ILF_make_a_section): Align data for compilers
	other than gcc.
	(pe_ILF_build_a_bfd): Likewise.
2020-06-03 17:59:44 +09:30
Alan Modra 0ed18fa177 PR26069, strip/objcopy memory leaks
PR 26029
	* elf.c (_bfd_elf_close_and_cleanup): Free elf_shstrtab for
	core files as well as objects.
2020-06-03 17:59:44 +09:30
H.J. Lu 190eb1ddba ELF: Move dyn_relocs to struct elf_link_hash_entry
All ELF backends with shared library support have

  /* Track dynamic relocs copied for this symbol.  */
  struct elf_dyn_relocs *dyn_relocs;

in symbol hash entry.  Move dyn_relocs to struct elf_link_hash_entry
to reduce code duplication.

	PR ld/26067
	* elf-bfd.h (elf_link_hash_entry): Add dyn_relocs after size.
	* elf-s390-common.c (s390_elf_allocate_ifunc_dyn_relocs):
	Updated.
	* elf32-arc.c (elf_arc_link_hash_entry): Remove dyn_relocs.
	(elf_arc_link_hash_newfunc): Updated.
	* elf32-arm.c (elf32_arm_link_hash_entry): Remove dyn_relocs.
	(elf32_arm_link_hash_newfunc): Updated.
	(elf32_arm_copy_indirect_symbol): Likewise.
	(elf32_arm_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs_for_symbol): Likewise.
	* elf32-csky.c (csky_elf_link_hash_entry): Remove dyn_relocs.
	(csky_elf_link_hash_newfunc): Updated.
	(csky_allocate_dynrelocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(csky_elf_copy_indirect_symbol): Likewise.
	* elf32-hppa.c (elf32_hppa_link_hash_entry): Remove dyn_relocs.
	(hppa_link_hash_newfunc): Updated.
	(elf32_hppa_copy_indirect_symbol): Likewise.
	(elf32_hppa_hide_symbol): Likewise.
	(elf32_hppa_adjust_dynamic_symbol): Likewise.
	(allocate_dynrelocs): Likewise.
	(elf32_hppa_relocate_section): Likewise.
	* elf32-i386.c (elf_i386_check_relocs): Likewise.
	* elf32-lm32.c (elf_lm32_link_hash_entry): Removed.
	(lm32_elf_link_hash_newfunc): Likewise.
	(lm32_elf_link_hash_table_create): Updated.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	(lm32_elf_copy_indirect_symbol): Likewise.
	* elf32-m32r.c (elf_m32r_link_hash_entry): Removed.
	(m32r_elf_link_hash_newfunc): Likewise.
	(m32r_elf_link_hash_table_create): Updated.
	(m32r_elf_copy_indirect_symbol): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf32-metag.c (elf_metag_link_hash_entry): Remove dyn_relocs.
	(metag_link_hash_newfunc): Updated.
	(elf_metag_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf32-microblaze.c (elf32_mb_link_hash_entry): Remove
	dyn_relocs.
	(link_hash_newfunc): Updated.
	(microblaze_elf_check_relocs): Likewise.
	(microblaze_elf_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf32-nds32.c (elf_nds32_link_hash_entry): Remove dyn_relocs.
	(nds32_elf_link_hash_newfunc): Updated.
	(nds32_elf_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	(nds32_elf_check_relocs): Likewise.
	* elf32-nios2.c (elf32_nios2_link_hash_entry): Remove dyn_relocs.
	(link_hash_newfunc): Updated.
	(nios2_elf32_copy_indirect_symbol): Likewise.
	(nios2_elf32_check_relocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf32-or1k.c (elf_or1k_link_hash_entry): Remove dyn_relocs.
	(or1k_elf_link_hash_newfunc): Updated.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	(or1k_elf_copy_indirect_symbol): Likewise.
	* elf32-ppc.c (ppc_elf_link_hash_entry): Remove dyn_relocs.
	(ppc_elf_link_hash_newfunc): Updated.
	(ppc_elf_copy_indirect_symbol): Likewise.
	(ppc_elf_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(ppc_elf_adjust_dynamic_symbol): Likewise.
	(allocate_dynrelocs): Likewise.
	(ppc_elf_relocate_section): Likewise.
	* elf32-s390.c (elf_s390_link_hash_entry): Remove dyn_relocs.
	(link_hash_newfunc): Updated.
	(elf_s390_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(elf_s390_adjust_dynamic_symbol): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf32-sh.c (elf_sh_link_hash_entry): Remove dyn_relocs.
	(sh_elf_link_hash_newfunc): Updated.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	(sh_elf_copy_indirect_symbol): Likewise.
	(sh_elf_check_relocs): Likewise.
	* elf32-tic6x.c (elf32_tic6x_link_hash_entry): Removed.
	(elf32_tic6x_link_hash_newfunc): Likewise.
	(elf32_tic6x_link_hash_table_create): Updated.
	(readonly_dynrelocs): Likewise.
	(elf32_tic6x_check_relocs): Likewise.
	(elf32_tic6x_allocate_dynrelocs): Likewise.
	* elf32-tilepro.c (tilepro_elf_link_hash_entry): Remove
	dyn_relocs.
	(link_hash_newfunc): Updated.
	(tilepro_elf_copy_indirect_symbol): Likewise.
	(tilepro_elf_check_relocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf64-ppc.c (ppc_link_hash_entry): Remove dyn_relocs.
	(ppc64_elf_copy_indirect_symbol): Updated.
	(ppc64_elf_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(ppc64_elf_adjust_dynamic_symbol): Likewise.
	(dec_dynrel_count): Likewise.
	(allocate_dynrelocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* elf64-s390.c (elf_s390_link_hash_entry): Remove dyn_relocs.
	(link_hash_newfunc): Updated.
	(elf_s390_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.
	* elfnn-aarch64.c (elf_aarch64_link_hash_entry): Remove
	dyn_relocs.
	(elfNN_aarch64_link_hash_newfunc): Updated.
	(elfNN_aarch64_copy_indirect_symbol): Likewise.
	(readonly_dynrelocs): Likewise.
	(need_copy_relocation_p): Likewise.
	(elfNN_aarch64_allocate_dynrelocs): Likewise.
	(elfNN_aarch64_allocate_ifunc_dynrelocs): Likewise.
	* elfnn-riscv.c (riscv_elf_link_hash_entry): Remove dyn_relocs.
	(link_hash_newfunc): Updated.
	(riscv_elf_copy_indirect_symbol): Likewise.
	(riscv_elf_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elfxx-sparc.c (_bfd_sparc_elf_link_hash_entry): Remove
	dyn_relocs.
	(link_hash_newfunc): Updated.
	(_bfd_sparc_elf_copy_indirect_symbol): Likewise.
	(_bfd_sparc_elf_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elfxx-tilegx.c (tilegx_elf_link_hash_entry): Remove dyn_relocs.
	(link_hash_newfunc): Updated.
	(tilegx_elf_copy_indirect_symbol): Likewise.
	(tilegx_elf_check_relocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(allocate_dynrelocs): Likewise.
	* elfxx-x86.c (elf_x86_allocate_dynrelocs): Likewise.
	(readonly_dynrelocs): Likewise.
	(_bfd_x86_elf_copy_indirect_symbol): Likewise.
	* elfxx-x86.h (elf_x86_link_hash_entry): Remove dyn_relocs.
2020-06-01 18:19:05 -07:00
Alan Modra 2fdb65f247 alpha-vms: ETIR checks
Better validity checks, and remove a fuzzer vulnerability of sorts that
targeted the store-immediate-repeat command with a zero length but
very large repeat counts to chew cpu.

	* vms-alpha.c (_bfd_vms_slurp_etir): Check bound for the current
	command against cmd_length, not the end of record.  For
	ETIR__C_STO_IMMR check size against cmd_length, mask repeat count
	to 32-bits and break out on zero size.  Add ETIR__C_STC_LP_PSB
	cmd_length test.
2020-06-01 23:33:28 +09:30
David Faust 12adf8053b bfd: fix handling of R_BPF_INSN_{32,64} relocations.
2020-05-28  David Faust  <david.faust@oracle.com>

	* elf64-bpf.c (bpf_elf_relocate_section): Fix handling of
	R_BPF_INSN_{32,64} relocations.
2020-05-28 21:54:46 +02:00
Stephen Casner 66e3eb08a5 Fix all unexpected failures in gas testsuite for pdp11-aout.
These failures were caused by the PDP11's mix of little-endian octets
in shorts but shorts in big endian order for long or quad so regexps
did not match.  Also tests used addresses as values in .long which
required BRD_RELOC_32 that was not implemented.

* gas/config/tc-pdp11.c (md_number_to_chars): Implement .quad
* gas/testsuite/gas/all/gas.exp: Select alternate test scripts for
pdp11, skip octa test completely.
* gas/testsuite/gas/all/eqv-dot-pdp11.s: Identical to eqv-dot.s
* gas/testsuite/gas/all/eqv-dot-pdp11.d: Match different octet order.
* gas/testsuite/gas/all/cond-pdp11.l: Match different octet order.

* bfd/pdp11.c: Implement BRD_RELOC_32 to relocate the low 16 bits of
addreses in .long (used in testsuites) and .stab values.
2020-05-28 10:11:59 -07:00
H.J. Lu a6dbf402de ld: Add --warn-textrel and obsolete --warn-shared-textrel
--warn-shared-textrel and -z text apply to both shared object and PIE.
Add --warn-textrel and obsolete --warn-shared-textrel.  Consolidate
--warn-textrel and -z text/notext/textoff implementation.

bfd/

	PR ld/22909
	* elflink.c (bfd_elf_final_link): Use bfd_link_textrel_check.
	Check bfd_link_dll when issue a DT_TEXTREL warning.
	* elfxx-x86.c (maybe_set_textrel): Likewise.
	(_bfd_x86_elf_size_dynamic_sections): Likewise.

include/

	PR ld/22909
	* bfdlink.h (textrel_check_method): New enum.
	(bfd_link_textrel_check): New.
	(bfd_link_info): Replace warn_shared_textrel and error_textrel
	with textrel_check.

ld/

	PR ld/22909
	* NEWS: Mention --warn-textrel.
	* ld.texi: Update -z text/notext/textoff.  Add --warn-textrel.
	Remove --warn-shared-textrel.
	* ldlex.h (option_values): Rename OPTION_WARN_SHARED_TEXTREL to
	OPTION_WARN_TEXTREL.
	* lexsup.c (ld_options): Add --warn-textrel.  Obsolete
	--warn-shared-textrel.
	(parse_args): Updated.
	(elf_shlib_list_options): Check link_info.textrel_check.
	* emultempl/elf.em: Updated.
	* testsuite/ld-elf/pr19539.d: Replace -z notext with
	--warn-textrel.  Expect a warning.
	* testsuite/ld-i386/warn1.d: Update expected warning.
2020-05-27 04:54:10 -07:00
Nick Clifton 9e7cb4c359 Extend the error message displayed when a plugin fails to load.
* plugin.c (try_load_plugin): Extend error message when a plugin
	fails to open.
2020-05-26 14:50:02 +01:00
Alan Modra c892b44730 Fix potential segfault
Code in vms-lib.c leaves arch_header NULL.

	* bfdio.c (bfd_get_file_size): Don't segfault on NULL arch_header.
2020-05-23 16:56:38 +09:30
Alan Modra 6f3fe02b0b PowerPC: downgrade FP mismatch error for shared libraries to a warning
PR 25882
bfd/
	* elf32-ppc.c (_bfd_elf_ppc_merge_fp_attributes): Don't init FP
	attributes from shared libraries, and do not return an error if
	they don't match.
gold/
	* powerpc.cc (merge_object_attributes): Replace name param with
	obj param.  Update callers.  Don't init FP attributes from shared
	libraries, and do not emit an error if they don't match.
2020-05-22 13:32:51 +09:30
Alan Modra 0490dd41ae Re: PR25993, read of freed memory
git commit 7b958a48e1 put the bfd filename in the bfd objalloc
memory.  That means the filename is freed by _bfd_free_cached_info.
Which is called by _bfd_compute_and_write_armap to tidy up symbol
tables after they are done with.

Unfortunately, _bfd_write_archive_contents wants to seek and read from
archive elements after that point, and if the number of elements
exceeds max_open_files in cache.c then some of those elements will
have their files closed.  To reopen, you need the filename.

	PR 25993
	* opncls.c (_bfd_free_cached_info): Keep a copy of the bfd
	filename.
	(_bfd_delete_bfd): Free the copy.
	(_bfd_new_bfd): Free nbfd->memory on error.
2020-05-21 23:39:36 +09:30
Alan Modra c95949892f Replace "if (x) free (x)" with "free (x)", bfd
* aoutx.h: Replace "if (x) free (x)" with "free (x)" throughout.
	* archive.c, * bfd.c, * bfdio.c, * coff-alpha.c, * coff-ppc.c,
	* coff-sh.c, * coff-stgo32.c, * coffcode.h, * coffgen.c,
	* cofflink.c, * cpu-arm.c, * doc/chew.c, * dwarf2.c, * ecoff.c,
	* ecofflink.c, * elf-eh-frame.c, * elf-m10200.c, * elf-m10300.c,
	* elf-strtab.c, * elf.c, * elf32-arc.c, * elf32-arm.c,
	* elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c, * elf32-crx.c,
	* elf32-epiphany.c, * elf32-ft32.c, * elf32-h8300.c,
	* elf32-ip2k.c, * elf32-m32c.c, * elf32-m68hc11.c,
	* elf32-m68k.c, * elf32-microblaze.c, * elf32-msp430.c,
	* elf32-nds32.c, * elf32-nios2.c, * elf32-ppc.c, * elf32-pru.c,
	* elf32-rl78.c, * elf32-rx.c, * elf32-sh.c, * elf32-spu.c,
	* elf32-v850.c, * elf32-xtensa.c, * elf64-alpha.c,
	* elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mips.c
	* elf64-mmix.c, * elf64-ppc.c, * elf64-sparc.c, * elfcode.h,
	* elflink.c, * elfnn-ia64.c, * elfnn-riscv.c, * elfxx-mips.c,
	* elfxx-x86.c, * format.c, * ihex.c, * libbfd.c, * linker.c,
	* mmo.c, * opncls.c, * pdp11.c, * peXXigen.c, * pef.c,
	* peicode.h, * simple.c, * som.c, * srec.c, * stabs.c, * syms.c,
	* targets.c, * vms-lib.c, * xcofflink.c, * xtensa-isa.c: Likewise.
2020-05-21 10:11:57 +09:30
Nelson Chu 8f595e9b4f [PATCH v2 0/9] RISC-V: Support version controling for ISA standard extensions and CSR
1. Remove the -mriscv-isa-version and --with-riscv-isa-version options.
We can still use -march to choose the version for each extensions, so there is
no need to add these.

2. Change the arguments of options from [1p9|1p9p1|...] to [1.9|1.9.1|...].
Unlike the architecture string has specified by spec, ther is no need to do
the same thing for options.

3. Spilt the patches to reduce the burdens of review.

[PATCH 3/7] RISC-V: Support new GAS options and configure options to set ISA versions
to
[PATCH v2 3/9] RISC-V: Support GAS option -misa-spec to set ISA versions
[PATCH v2 4/9] RISC-V: Support configure options to set ISA versions by default.

[PATCH 4/7] RISC-V: Support version checking for CSR according to privilege version.
to
[PATCH v2 5/9] RISC-V: Support version checking for CSR according to privilege spec version.
[PATCH v2 6/9] RISC-V: Support configure option to choose the privilege spec version.

4. Use enum class rather than string to compare the choosen ISA spec in opcodes/riscv-opc.c.
The behavior is same as comparing the choosen privilege spec.

include	* opcode/riscv.h: Include "bfd.h" to support bfd_boolean.
	(enum riscv_isa_spec_class): New enum class.  All supported ISA spec
	belong to one of the class
	(struct riscv_ext_version): New structure holds version information
	for the specific ISA.
	* opcode/riscv-opc.h (DECLARE_CSR): There are two version information,
	define_version and abort_version.  The define_version means which
	privilege spec is started to define the CSR, and the abort_version
	means which privilege spec is started to abort the CSR.  If the CSR is
	valid for the newest spec, then the abort_version should be
	PRIV_SPEC_CLASS_DRAFT.
	(DECLARE_CSR_ALIAS): Same as DECLARE_CSR, but only for the obselete CSR.
	* opcode/riscv.h (enum riscv_priv_spec_class): New enum class.  Define
	the current supported privilege spec versions.
	(struct riscv_csr_extra): Add new fields to store more information
	about the CSR.  We use these information to find the suitable CSR
	address when user choosing a specific privilege spec.

binutils * dwarf.c: Updated since DECLARE_CSR is changed.

opcodes	* riscv-opc.c (riscv_ext_version_table): The table used to store
	all information about the supported spec and the corresponding ISA
	versions.  Currently, only Zicsr is supported to verify the
	correctness of Z sub extension settings.  Others will be supported
	in the future patches.
	(struct isa_spec_t, isa_specs): List for all supported ISA spec
	classes and the corresponding strings.
	(riscv_get_isa_spec_class): New function.  Get the corresponding ISA
	spec class by giving a ISA spec string.
	* riscv-opc.c (struct priv_spec_t): New structure.
	(struct priv_spec_t priv_specs): List for all supported privilege spec
	classes and the corresponding strings.
	(riscv_get_priv_spec_class): New function.  Get the corresponding
	privilege spec class by giving a spec string.
	(riscv_get_priv_spec_name): New function.  Get the corresponding
	privilege spec string by giving a CSR version class.
	* riscv-dis.c: Updated since DECLARE_CSR is changed.
	* riscv-dis.c: Add new disassembler option -Mpriv-spec to dump the CSR
	according to the chosen version.  Build a hash table riscv_csr_hash to
	store the valid CSR for the chosen pirv verison.  Dump the direct
	CSR address rather than it's name if it is invalid.
	(parse_riscv_dis_option_without_args): New function.  Parse the options
	without arguments.
	(parse_riscv_dis_option): Call parse_riscv_dis_option_without_args to
	parse the options without arguments first, and then handle the options
	with arguments.  Add the new option -Mpriv-spec, which has argument.
	* riscv-dis.c (print_riscv_disassembler_options): Add description
	about the new OBJDUMP option.

ld	* testsuite/ld-riscv-elf/attr-merge-arch-01.d: Updated
        priv attributes according to the -mpriv-spec option.
	* testsuite/ld-riscv-elf/attr-merge-arch-02.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-arch-03.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-a.s: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec-b.s: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-priv-spec.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-stack-align.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-strict-align-01.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-strict-align-02.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-strict-align-03.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-strict-align-04.d: Likewise.
	* testsuite/ld-riscv-elf/attr-merge-strict-align-05.d: Likewise.

bfd 	* elfxx-riscv.h (riscv_parse_subset_t): Add new callback function
	get_default_version.  It is used to find the default version for
	the specific extension.
	* elfxx-riscv.c (riscv_parsing_subset_version): Remove the parameters
	default_major_version and default_minor_version.  Add new bfd_boolean
	parameter *use_default_version.  Set it to TRUE if we need to call
	the callback rps->get_default_version to find the default version.
	(riscv_parse_std_ext): Call rps->get_default_version if we fail to find
	the default version in riscv_parsing_subset_version, and then call
	riscv_add_subset to add the subset into subset list.
	(riscv_parse_prefixed_ext): Likewise.
	(riscv_std_z_ext_strtab): Support Zicsr extensions.
	* elfnn-riscv.c (riscv_merge_std_ext): Use strcasecmp to compare the
	strings rather than characters.
	riscv_merge_arch_attr_info): The callback function get_default_version
	is only needed for assembler, so set it to NULL int the linker.
	* elfxx-riscv.c (riscv_estimate_digit): Remove the static.
	* elfxx-riscv.h: Updated.

gas	* testsuite/gas/riscv/priv-reg-fail-read-only-01.s: Updated.
	* config/tc-riscv.c (default_arch_with_ext, default_isa_spec):
	Static variables which are used to set the ISA extensions. You can
	use -march (or ELF build attributes) and -misa-spec to set them,
	respectively.
	(ext_version_hash): The hash table used to handle the extensions
	with versions.
	(init_ext_version_hash): Initialize the ext_version_hash according
	to riscv_ext_version_table.
	(riscv_get_default_ext_version): The callback function of
	riscv_parse_subset_t.  According to the choosed ISA spec,
	get the default version for the specific extension.
	(riscv_set_arch): Set the callback function.
	(enum options, struct option md_longopts): Add new option -misa-spec.
	(md_parse_option): Do not call riscv_set_arch for -march.  We will
	call it later in riscv_after_parse_args.  Call riscv_get_isa_spec_class
	to set default_isa_spec class.
	(riscv_after_parse_args): Call init_ext_version_hash to initialize the
	ext_version_hash, and then call riscv_set_arch to set the architecture
	with versions according to default_arch_with_ext.
	* testsuite/gas/riscv/attribute-02.d: Set 0p0 as default version for
	x extensions.
	* testsuite/gas/riscv/attribute-03.d: Likewise.
	* testsuite/gas/riscv/attribute-09.d: New testcase.  For i-ext, we
	already set it's version to 2p1 by march, so no need to use the default
	2p2 version.  For m-ext, we do not set the version by -march and ELF arch
	attribute, so set the default 2p0 to it.  For zicsr, it is not defined in
	ISA spec 2p2, so set 0p0 to it.
	* testsuite/gas/riscv/attribute-10.d: New testcase.  The version of
	zicsr is 2p0 according to ISA spec 20191213.
	* config/tc-riscv.c (DEFAULT_RISCV_ARCH_WITH_EXT)
	(DEFAULT_RISCV_ISA_SPEC): Default configure option settings.
	You can set them by configure options --with-arch and
	--with-isa-spec, respectively.
	(riscv_set_default_isa_spec): New function used to set the
	default ISA spec.
	(md_parse_option): Call riscv_set_default_isa_spec rather than
	call riscv_get_isa_spec_class directly.
	(riscv_after_parse_args): If the -isa-spec is not set, then we
	set the default ISA spec according to DEFAULT_RISCV_ISA_SPEC by
	calling riscv_set_default_isa_spec.
	* testsuite/gas/riscv/attribute-01.d: Add -misa-spec=2.2, since
	the --with-isa-spec may be set to different ISA spec.
	* testsuite/gas/riscv/attribute-02.d: Likewise.
	* testsuite/gas/riscv/attribute-03.d: Likewise.
	* testsuite/gas/riscv/attribute-04.d: Likewise.
	* testsuite/gas/riscv/attribute-05.d: Likewise.
	* testsuite/gas/riscv/attribute-06.d: Likewise.
	* testsuite/gas/riscv/attribute-07.d: Likewise.
	* configure.ac: Add configure options, --with-arch and
	--with-isa-spec.
	* configure: Regenerated.
	* config.in: Regenerated.
	* config/tc-riscv.c (default_priv_spec): Static variable which is
	used to check if the CSR is valid for the chosen privilege spec. You
	can use -mpriv-spec to set it.
	(enum reg_class): We now get the CSR address from csr_extra_hash rather
	than reg_names_hash.  Therefore, move RCLASS_CSR behind RCLASS_MAX.
	(riscv_init_csr_hashes): Only need to initialize one hash table
	csr_extra_hash.
	(riscv_csr_class_check): Change the return type to void.  Don't check
	the ISA dependency if -mcsr-check isn't set.
	(riscv_csr_version_check): New function.  Check and find the CSR address
	from csr_extra_hash, according to default_priv_spec.  Report warning
	for the invalid CSR if -mcsr-check is set.
	(reg_csr_lookup_internal): Updated.
	(reg_lookup_internal): Likewise.
	(md_begin): Updated since DECLARE_CSR and DECLARE_CSR_ALIAS are changed.
	(enum options, struct option md_longopts): Add new GAS option -mpriv-spec.
	(md_parse_option): Call riscv_set_default_priv_version to set
	default_priv_spec.
	(riscv_after_parse_args): If -mpriv-spec isn't set, then set the default
	privilege spec to the newest one.
	(enum riscv_csr_class, struct riscv_csr_extra): Move them to
	include/opcode/riscv.h.
	* testsuite/gas/riscv/priv-reg-fail-fext.d: This test case just want
	to check the ISA dependency for CSR, so fix the spec version by adding
	-mpriv-spec=1.11.
	* testsuite/gas/riscv/priv-reg-fail-fext.l: Likewise.  There are some
	version warnings for the test case.
	* gas/testsuite/gas/riscv/priv-reg-fail-read-only-01.d: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-read-only-01.l: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-read-only-02.d: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-rv32-only.d: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-rv32-only.l: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9.d: New test case.
	Check whether the CSR is valid when privilege version 1.9 is choosed.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9.l: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9p1.d: New test case.
	Check whether the CSR is valid when privilege version 1.9.1 is choosed.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p9p1.l: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p10.d: New test case.
	Check whether the CSR is valid when privilege version 1.10 is choosed.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p10.l: Likewise.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p11.d: New test case.
	Check whether the CSR is valid when privilege version 1.11 is choosed.
	* gas/testsuite/gas/riscv/priv-reg-fail-version-1p11.l: Likewise.
	* config/tc-riscv.c (DEFAULT_RISCV_ISA_SPEC): Default configure option
	setting.  You can set it by configure option --with-priv-spec.
	(riscv_set_default_priv_spec): New function used to set the default
	privilege spec.
	(md_parse_option): Call riscv_set_default_priv_spec rather than
	call riscv_get_priv_spec_class directly.
	(riscv_after_parse_args): If -mpriv-spec isn't set, then we set the
	default privilege spec according to DEFAULT_RISCV_PRIV_SPEC by
	calling riscv_set_default_priv_spec.
	* testsuite/gas/riscv/csr-dw-regnums.d: Add -mpriv-spec=1.11, since
	the --with-priv-spec may be set to different privilege spec.
	* testsuite/gas/riscv/priv-reg.d: Likewise.
	* configure.ac: Add configure option --with-priv-spec.
	* configure: Regenerated.
	* config.in: Regenerated.
	* config/tc-riscv.c (explicit_attr): Rename explicit_arch_attr to
	explicit_attr.  Set it to TRUE if any ELF attribute is found.
	(riscv_set_default_priv_spec): Try to set the default_priv_spec if
	the priv attributes are set.
	(md_assemble): Set the default_priv_spec according to the priv
	attributes when we start to assemble instruction.
	(riscv_write_out_attrs): Rename riscv_write_out_arch_attr to
	riscv_write_out_attrs.  Update the arch and priv attributes.  If we
	don't set the corresponding ELF attributes, then try to output the
	default ones.
	(riscv_set_public_attributes): If any ELF attribute or -march-attr
	options is set (explicit_attr is TRUE), then call riscv_write_out_attrs
	to update the arch and priv attributes.
	(s_riscv_attribute): Make sure all arch and priv attributes are set
	before any instruction.
	* testsuite/gas/riscv/attribute-01.d: Update the priv attributes if any
	ELF attribute or -march-attr is set.  If the priv attributes are not
	set, then try to update them by the default setting (-mpriv-spec or
	--with-priv-spec).
	* testsuite/gas/riscv/attribute-02.d: Likewise.
	* testsuite/gas/riscv/attribute-03.d: Likewise.
	* testsuite/gas/riscv/attribute-04.d: Likewise.
	* testsuite/gas/riscv/attribute-06.d: Likewise.
	* testsuite/gas/riscv/attribute-07.d: Likewise.
	* testsuite/gas/riscv/attribute-08.d: Likewise.
	* testsuite/gas/riscv/attribute-09.d: Likewise.
	* testsuite/gas/riscv/attribute-10.d: Likewise.
	* testsuite/gas/riscv/attribute-unknown.d: Likewise.
	* testsuite/gas/riscv/attribute-05.d: Likewise.  Also, the priv spec
	set by priv attributes must be supported.
	* testsuite/gas/riscv/attribute-05.s: Likewise.
	* testsuite/gas/riscv/priv-reg-fail-version-1p9.d: Likewise.  Updated
	priv attributes according to the -mpriv-spec option.
	* testsuite/gas/riscv/priv-reg-fail-version-1p9p1.d: Likewise.
	* testsuite/gas/riscv/priv-reg-fail-version-1p10.d: Likewise.
	* testsuite/gas/riscv/priv-reg-fail-version-1p11.d: Likewise.
	* testsuite/gas/riscv/priv-reg.d: Removed.
	* testsuite/gas/riscv/priv-reg-version-1p9.d: New test case.  Dump the
	CSR according to the priv spec 1.9.
	* testsuite/gas/riscv/priv-reg-version-1p9p1.d: New test case.  Dump the
	CSR according to the priv spec 1.9.1.
	* testsuite/gas/riscv/priv-reg-version-1p10.d: New test case.  Dump the
	CSR according to the priv spec 1.10.
	* testsuite/gas/riscv/priv-reg-version-1p11.d: New test case.  Dump the
	CSR according to the priv spec 1.11.
	* config/tc-riscv.c (md_show_usage): Add descriptions about
	the new GAS options.
	* doc/c-riscv.texi: Likewise.
2020-05-20 17:22:48 +01:00
Nick Clifton 11c0dd51e8 Fix thinko in bfd ChangeLog entry 2020-05-20 11:43:56 +01:00
Alan Modra 7b958a48e1 PR25993, read of freed memory
ldmain.c:add_archive_element copies file name pointers from the bfd to
a lang_input_statement_type.
  input->filename = abfd->filename;
  input->local_sym_name = abfd->filename;
This results in stale pointers when twiddling the bfd filename in
places like the pe ld after_open.  So don't free the bfd filename,
and make copies using bfd_alloc memory that won't result in small
memory leaks that annoy memory checkers.

	PR 25993
bfd/
	* archive.c (_bfd_get_elt_at_filepos): Don't strdup filename,
	use bfd_set_filename.
	* elfcode.h (_bfd_elf_bfd_from_remote_memory): Likewise.
	* mach-o.c (bfd_mach_o_fat_member_init): Likewise.
	* opncls.c (bfd_fopen, bfd_openstreamr, bfd_openr_iovec, bfd_openw),
	(bfd_create): Likewise.
	(_bfd_delete_bfd): Don't free filename.
	(bfd_set_filename): Copy filename param to bfd_alloc'd memory,
	return pointer to the copy or NULL on alloc fail.
	* vms-lib.c (_bfd_vms_lib_get_module): Free newname and test
	result of bfd_set_filename.
	* bfd-in2.h: Regenerate.
gdb/
	* solib-darwin.c (darwin_bfd_open): Don't strdup pathname for
	bfd_set_filename.
	* solib-aix.c (solib_aix_bfd_open): Use std::string for name
	passed to bfd_set_filename.
	* symfile-mem.c (add_vsyscall_page): Likewise for string
	passed to symbol_file_add_from_memory.
	(symbol_file_add_from_memory): Make name param a const char* and
	don't strdup.
ld/
	* emultempl/pe.em (gld_${EMULATION_NAME}_after_open): Don't copy
	other_bfd_filename for bfd_set_filename, and test result of
	bfd_set_filename call.  Don't create a new is->filename, simply
	copy from bfd filename.  Free new_name after bfd_set_filename.
	* emultempl/pep.em (gld_${EMULATION_NAME}_after_open): Likewise.
2020-05-20 11:43:50 +09:30
Alan Modra 3c568b8afa PR26011, excessive memory allocation with fuzzed reloc sections
Check sizes early, before users of slurp_relocs allocate buffers for
the swapped in relocs.

	PR 26011
	* elf.c (_bfd_elf_get_reloc_upper_bound): Sanity check reloc
	section size against file size.
	(_bfd_elf_get_dynamic_reloc_upper_bound): Likewise.
2020-05-20 07:59:15 +09:30
Gunther Nikl 6fd1d259e9 Fix thinko in recent update to bfd_section_from_shdr.
PR 26005
	* elf.c (bfd_section_from_shdr): Replace bfd_malloc + memset with
	bfd_zmalloc to allocate memory for the sections_being_created array.
2020-05-19 17:32:26 +01:00
Stafford Horne 7e94cf6cb0 OpenRISC BFD fixups for Glibc:
or1k: Fix static linking when with .rela.got relocations
  or1k: Fix dynamic TLS symbol flag
  or1k: Add TLS mask to handle multiple model access
  or1k: Fix issue with multiple PCREL relocations
  or1k: TLS offset to use tcb size and section alignment
  or1k: refactor: Rename p to sec_relocs
  or1k: refactor: Rename s to sgot and splt
  or1k: Add dynamic flag to tpoff

bfd	* elf32-or1k.c (or1k_elf_finish_dynamic_symbol): Rename srela
	to relgot.
	(or1k_elf_relocate_section): Access srelgot via
	htab->root.srelgot.  Add assertions for srelgot->contents.
	Introduce local variable for srelgot to not reuse global
	sreloc.
	(or1k_elf_relocate_section): Fixup dynamic symbol detection.
	(or1k_set_got_and_rela_sizes): New function.
	(or1k_initial_exec_offset): New function.
	(TLS_GD, TLS_IE, TLS_LD, TLS_LE): Redefine macros as masks.
	(or1k_elf_relocate_section): Allow for TLS to handle multiple
	model access.
	(or1k_elf_check_relocs): Use OR to set TLS access.
	(allocate_dynrelocs): Use or1k_set_got_and_rela_sizes to set
	sizes.
	(or1k_elf_size_dynamic_sections): Use
	or1k_set_got_and_rela_sizes to set sizes.
	(or1k_elf_relocate_section): Fixup PCREL relocation calculation.
	(TCB_SIZE): New macro.
	(tpoff): Use TCB_SIZE and alignment to calculate offset.
	(allocate_dynrelocs, readonly_dynrelocs, or1k_elf_check_relocs)
	(or1k_elf_size_dynamic_sections): Rename p to sec_relocs.
	(allocate_dynrelocs): Rename s to splt or sgot based on usage.
	(tpoff): Add dynamic boolean argument.
	(or1k_elf_relocate_section): Pass dynamic flag to tpoff.
2020-05-19 14:26:33 +01:00
Siddhesh Poyarekar 7e05773767 [PATCH v3] aarch64: Emit jump slot for conditional branch to undefined symbols
The linker silently writes out a conditional branch to 0 if the
target symbol in R_AARCH64_CONDBR19 or R_AARCH64_TSTBR14 relocations is
undefined.  Emit a PLT instead so that behaviour is the same for these
relocations as the llvm linker.

The special behaviour for undefined weak symbols, where conditional
branches to such symbols result in a branch unto themselves, has been
retained.  This is because the weak-undefined.s test explicitly checks
for that, leading me to conclude that it's expected behaviour.

bfd	* elfnn-aarch64.c (elfNN_aarch64_final_link_relocate): Club
	BFD_RELOC_AARCH64_BRANCH19 and BFD_RELOC_AARCH64_TSTBR14
	cases with BFD_RELOC_AARCH64_JUMP26.
	(elfNN_aarch64_check_relocs): Likewise.

ld	* testsuite/ld-aarch64/aarch64-elf.exp: New test
	emit-relocs-560.
	* testsuite/ld-aarch64/emit-relocs-560.d: New file.
	* testsuite/ld-aarch64/emit-relocs-560.s: New file.
2020-05-19 11:07:52 +01:00
Alan Modra 765cf5f623 Use bfd_get_filename throughout bfd
* aix5ppc-core.c (xcoff64_core_file_matches_executable_p): Use
	bfd_get_filename rather than accessing bfd->filename directly.
	* aout-target.h (MY (object_p)): Likewise.
	* aoutx.h (aout_find_nearest_line, aout_link_write_symbols): Likewise.
	* archive.c (find_nested_archive, _bfd_generic_read_ar_hdr_mag),
	(_bfd_construct_extended_name_table, _bfd_bsd44_write_ar_hdr),
	(_bfd_archive_bsd44_construct_extended_name_table),
	(_bfd_write_archive_contents, _bfd_compute_and_write_armap),
	(_bfd_bsd_write_armap): Likewise.
	* bfd.c (bfd_errmsg, _bfd_doprnt): Likewise.
	* cache.c (bfd_open_file): Likewise.
	* ecoff.c (_bfd_ecoff_write_armap): Likewise.
	* ecofflink.c (bfd_ecoff_debug_accumulate_other): Likewise.
	* elf32-bfin.c (bfinfdpic_relocate_section): Likewise.
	* elf32-frv.c (elf32_frv_relocate_section): Likewise.
	* elf32-hppa.c (elf32_hppa_final_link): Likewise.
	* elf32-nds32.c (nds32_elf_output_symbol_hook),
	(patch_tls_desc_to_ie): Likewise.
	* elf32-spu.c (sort_bfds, print_one_overlay_section),
	(spu_elf_auto_overlay): Likewise.
	* elf64-hppa.c (elf_hppa_final_link): Likewise.
	* elf64-ia64-vms.c (elf64_ia64_size_dynamic_sections): Likewise.
	* elfcore.h (elf_core_file_matches_executable_p): Likewise.
	* elflink.c (bfd_elf_size_dynamic_sections),
	(elf_link_input_bfd): Likewise.
	* linker.c (_bfd_generic_link_output_symbols): Likewise.
	* mach-o.c (bfd_mach_o_follow_dsym),
	(bfd_mach_o_close_and_cleanup): Likewise.
	* opncls.c (_bfd_delete_bfd, _maybe_make_executable),
	(find_separate_debug_file, get_build_id_name): Likewise.
	* pdp11.c (aout_find_nearest_line, aout_link_write_symbols): Likewise.
	* plugin.c (bfd_plugin_open_input): Likewise.
	* rs6000-core.c (rs6000coff_core_file_matches_executable_p): Likewise.
	* som.c (som_write_armap): Likewise.
	* srec.c (srec_write_record, srec_write_symbols): Likewise.
	* vms-lib.c (_bfd_vms_lib_get_imagelib_file),
	(_bfd_vms_lib_write_archive_contents): Likewise.
	* xcofflink.c (xcoff_link_add_dynamic_symbols): Likewise.
2020-05-19 12:35:03 +09:30
Alan Modra 39a1432c09 win32 typo fix
PR 25713
	* bfdio.c (_bfd_real_fopen): Typo fix.
2020-05-19 10:51:04 +09:30
Nick Clifton ed02cdb5b7 Fix a use-after-free bug in the BFD library when scanning a corrupt ELF file.
PR 26005
	* elf.c (bfd_section_from_shdr): Use bfd_malloc to allocate memory
	for the sections_being_created array.
2020-05-18 15:52:03 +01:00
Alan Modra 7a87e9c805 ECOFF slurp_relocs thinko
In git commit 806470a219 I swapped the order of internal vs. external
relocs memory allocation in ecoff_slurp_reloc_table, the idea being
that the external reloc size can be sanity checked against file size.
However, that fails badly with bfd_alloc memory where releasing any
block also releases all more recently allocated blocks.

	* ecoff.c (ecoff_slurp_reloc_table): Malloc external_relocs so
	they can be freed without also freeing internal_relocs.
2020-05-18 20:56:39 +09:30
Jaydeep Chauhan ca859a8939 Fix the BFD library to handle Windows pathnames with more than 260 characters and UNIX style directory separators.
PR 25713
	* bfdio.c (_bfd_real_fopen): Convert UNIX style sirectory
	separators into DOS style when creating a WIN32 fullpath.
2020-05-18 11:36:26 +01:00
Nelson Chu fc46e8bd35 RISC-V: Add elfNN_riscv_mkobject to initialize RISC-V tdata.
For now we only have one char pointer in RISC-V tdata, so it should be fine.
But once we need more elements in tdata, then we may get some uninitialize
or unexpected values.  I do meet the same problem when extending the RISC-V
tdata.

	bfd/
	elfnn-riscv.c (elfNN_riscv_mkobject):  New function.  We need this
	to initialize RISC-V tdata.
2020-05-14 10:39:54 +08:00
Gunther Nikl 533f049e00 [PATCH] bfd: Fix 64-bit relocation handling for a.out
* aoutx.h (NAME (aout, swap_std_reloc_out)): Reject an unsupported
	relocation size.
2020-05-12 12:18:09 +01:00
Alan Modra 94ba9882d5 Power10 VSX 32-byte storage access
bfd/
	* elf64-ppc.c (xlate_pcrel_opt): Handle lxvp and stxvp.
opcodes/
	* ppc-opc.c (insert_xtp, extract_xtp): New functions.
	(XTP, DQXP, DQXP_MASK): Define.
	(powerpc_opcodes): Add lxvp, stxvp, lxvpx, stxvpx.
	(prefix_opcodes): Add plxvp and pstxvp.
gas/
	* testsuite/gas/ppc/vsx_32byte.d,
	* testsuite/gas/ppc/vsx_32byte.s: New test.
	* testsuite/gas/ppc/ppc.exp: Run it.
ld/
	* testsuite/ld-powerpc/pcrelopt.s: Add lxvp and stxvp.
	* testsuite/ld-powerpc/pcrelopt.d: Update.
2020-05-11 21:08:37 +09:30
Alan Modra 7c1f422735 PowerPC Rename powerxx to power10
Now that ISA3.1 is out we can finish with the powerxx silliness.

bfd/
	* elf64-ppc.c: Rename powerxx to power10 throughout.
gas/
	* config/tc-ppc.c (md_assemble): Update for PPC_OPCODE_POWER10
	renaming.
	* testsuite/gas/ppc/prefix-align.d: Use -mpower10/-Mpower10 in
	place of -mfuture/-Mfuture.
	* testsuite/gas/ppc/prefix-pcrel.d: Likewise.
	* testsuite/gas/ppc/prefix-reloc.d: Likewise.
gold/
	* powerpc.cc: Rename powerxx to power10 throughout.
include/
	* elf/ppc64.h: Update comment.
	* opcode/ppc.h (PPC_OPCODE_POWER10): Rename from PPC_OPCODE_POWERXX.
ld/
	* testsuite/ld-powerpc/callstub-1.d: Use -mpower10/-Mpower10 in
	place of -mfuture/-Mfuture.
	* testsuite/ld-powerpc/notoc2.d: Likewise.
	* testsuite/ld-powerpc/powerpc.exp: Likewise.
	* testsuite/ld-powerpc/tlsgd.d: Likewise.
	* testsuite/ld-powerpc/tlsie.d: Likewise.
	* testsuite/ld-powerpc/tlsld.d: Likewise.
opcodes/
	* ppc-dis.c (ppc_opts): Add "power10" entry.
	(print_insn_powerpc): Update for PPC_OPCODE_POWER10 renaming.
	* ppc-opc.c (POWER10): Rename from POWERXX.  Update all uses.
2020-05-11 21:08:36 +09:30
Alan Modra 4d5acb1ea5 PR25961, buffer overflow in coff_swap_aux_in
PR 25961
	* coffgen.c (coff_get_normalized_symtab): Check that buffer
	contains required number of auxents before processing any auxent.
	* coffswap.h (coff_swap_aux_in <C_FILE>): Only swap in extended
	file name from auxents for PE.
2020-05-11 18:11:26 +09:30
Gunther Nikl 7242fa8aa7 [PATCH] bfd: tweak SET_ARCH_MACH of aout-cris.c
* aout-cris.c (DEFAULT_ARCH): Delete define.
	(MY_set_arch_mach): Likewise.
	(SET_ARCH_MACH): Use bfd_set_arch_mach with an explicit architecture
	of bfd_arch_cris.
	(swap_ext_reloc_in): Add casts to r_index extraction. Mask valid bits
	of r_type before the shift.
2020-05-04 16:07:26 +01:00