addresses outside of the 32-bit range before memory exhaustion. This
results in a higher entropy implementation of ASLR when used with the
DYNAMIC_BASE flag.
* include/coff/pe.h: Add HIGH_ENTROPY_VA flag
* ld/emultempl/pep.em: Add --high-entropy-va switch
* ld/ld.texinfo: Document the --high-entropy-va switch
bfd/
* peicode.h (pe_ILF_object_p): Adjust, as the version number
has been read.
(pe_bfd_object_p): Also read version number to detect ILF.
* pe-x86_64.c (COFF_WITH_PE_BIGOBJ): Define.
(x86_64pe_bigobj_vec): Define
* coffcode.h (bfd_coff_backend_data): Add _bfd_coff_max_nscns field.
(bfd_coff_max_nscns): New macro.
(coff_compute_section_file_positions): Use unsigned int for
target_index. Compare with bfd_coff_max_nscns.
(bfd_coff_std_swap_table, ticoff0_swap_table, ticoff1_swap_table):
Set a value for _bfd_coff_max_nscns.
(header_bigobj_classid): New constant.
(coff_bigobj_swap_filehdr_in, coff_bigobj_swap_filehdr_out)
(coff_bigobj_swap_sym_in, coff_bigobj_swap_sym_out)
(coff_bigobj_swap_aux_in, coff_bigobj_swap_aux_out): New
functions.
(bigobj_swap_table): New table.
* libcoff.h: Regenerate.
* coff-sh.c (bfd_coff_small_swap_table): Likewise.
* coff-alpha.c (alpha_ecoff_backend_data): Add value for
_bfd_coff_max_nscns.
* coff-mips.c (mips_ecoff_backend_data): Likewise.
* coff-rs6000.c (bfd_xcoff_backend_data)
(bfd_pmac_xcoff_backend_data): Likewise.
* coff64-rs6000.c (bfd_xcoff_backend_data)
(bfd_xcoff_aix5_backend_data): Likewise.
* targets.c (x86_64pe_bigobj_vec): Declare.
* configure.in (x86_64pe_bigobj_vec): New vector.
* configure: Regenerate.
* config.bfd: Add bigobj object format for Windows targets.
gas/
* config/tc-i386.c (use_big_obj): Declare.
(OPTION_MBIG_OBJ): Define.
(md_longopts): Add -mbig-obj option.
(md_parse_option): Handle it.
(md_show_usage): Display help for this option.
(i386_target_format): Use bigobj for x86-64 if -mbig-obj.
* doc/c-i386.texi: Document the option.
gas/testsuite/
* gas/pe/big-obj.d, gas/pe/big-obj.s: Add test.
* gas/pe/pe.exp: Add test.
include/coff/
* pe.h (struct external_ANON_OBJECT_HEADER_BIGOBJ): Declare.
(FILHSZ_BIGOBJ): Define.
(struct external_SYMBOL_EX): Declare.
(SYMENT_BIGOBJ, SYMESZ_BIGOBJ): Define.
(union external_AUX_SYMBOL_EX): Declare.
(AUXENT_BIGOBJ, AUXESZ_BIGOBJ): Define.
* internal.h (struct internal_filehdr): Change type
of f_nscns.
bfd/
2013-11-27 Tristan Gingold <gingold@adacore.com>
* pei-x86_64.c (pex_regs): Make it const. Add comments.
(pex64_get_runtime_function): Do not split UnwindData.
(pex64_get_unwind_info): Extract the chain and the handler.
(pex64_xdata_print_uwd_codes): Rewritten: do not reverse print
the opcode, handle version 2, add consistency check, make the
code host neutral.
(pex64_dump_xdata): Change arguments to pass the section and its
content. Handle version 2, change output.
(pex64_bfd_print_pdata): Add comments, load section for xdata.
Avoid duplicate outputs.
include/coff
2013-11-27 Tristan Gingold <gingold@adacore.com>
* pe.h (struct pex64_runtime_function): Remove isChained.
(UWOP_SAVE_XMM): Add comment.
(struct pex64_unwind_info): Remove extra fields.
* dlltool.c (PAGE_SIZE): Delete.
(PAGE_MASK): Provide default definition based on COFF_PAGE_SIZE.
Check for DLLTOOL_DEFAULT_MX86_64 and DLLTOOL_DEFAULT_I386.
* coff-i386.h (COFF_PAGE_SIZE): Definition moved to coff/i386.h
* i386lh (COFF_PAGE_SIZE): Define.
* x86_64.h (COFF_PAGE_SIZE): Define.
(record_thumb_to_arm_glue, bfd_arm_process_before_allocation):
Change member name class to symbol_class.
* bfd/coff-i960.c (coff_i960_relocate_section) Rename variable
class to class_val. Change member name class to symbol_class.
* bfd/coff-rs6000.c (_bfd_xcoff_swap_aux_in)
(_bfd_xcoff_swap_aux_out): Rename arguments class to in_class.
* bfd/coff-stgo32.c (adjust_aux_in_post)
(adjust_aux_out_pre, adjust_aux_out_post): Rename arguments class
to in_class.
* bfd/coff64-rs6000.c (_bfd_xcoff64_swap_aux_in)
(_bfd_xcoff64_swap_aux_out): Rename arguments class to in_class.
* bfd/coffcode.h (coff_pointerize_aux_hook): Rename variable class
to n_sclass.
* bfd/coffgen.c (coff_write_symbol, coff_pointerize_aux): Rename
variables named class to n_sclass. (coff_write_symbols): Rename
variable class to sym_class. (bfd_coff_set_symbol_class): Rename
argument class to symbol_class.
* bfd/cofflink.c (_bfd_coff_link_hash_newfunc)
(coff_link_add_symbols, _bfd_coff_link_input_bfd)
(_bfd_coff_write_global_sym, _bfd_coff_generic_relocate_section):
Update code to use renamed members.
* bfd/coffswap.h (coff_swap_aux_in, coff_swap_aux_out): Rename
argument class to in_class.
* bfd/libcoff-in.h (struct coff_link_hash_entry, struct
coff_debug_merge_type) Renamed members class to symbol_class and
type_class.
* bfd/libcoff.h Regenerated.
* bfd/peXXigen.c: (_bfd_XXi_swap_aux_in, _bfd_XXi_swap_aux_out):
Rename argument class to in_class.
* bfd/pef.c (bfd_pef_parse_imported_symbol): Update code to use
renamed members.
* bfd/pef.h (struct bfd_pef_imported_symbol): Changed name of
member class to symbol_class.
* binutils/ieee.c (ieee_read_cxx_misc, ieee_read_cxx_class)
(ieee_read_reference): Rename variables named class to cxxclass.
* gas/config/tc-arc.c (struct syntax_classes): Rename member class
to s_class. (arc_extinst): Rename variable class to
s_class. Update code to use renamed members.
* gas/config/tc-mips.c (insn_uses_reg): Rename argument class to
regclass.
* gas/config/tc-ppc.c (ppc_csect, ppc_change_csect, ppc_function)
(ppc_tc, ppc_is_toc_sym, ppc_symbol_new_hook, ppc_frob_label)
(ppc_fix_adjustable, md_apply_fix): Update code to use renamed
members.
* gas/config/tc-ppc.h (struct ppc_tc_sy): Change name of member
from class to symbol_class. (OBJ_COPY_SYMBOL_ATTRIBUTES): Update
code to use renamed members.
* gas/config/tc-score.c (s3_adjust_paritybit): Rename argument
class to i_class.
* gas/config/tc-score7.c (s7_adjust_paritybit): Rename argument
class to i_class.
* gprof/corefile.c (core_create_function_syms): Rename variable
class to cxxclass.
* include/coff/ti.h (GET_LNSZ_SIZE, PUT_LNSZ_SIZE): Updated name
of class variable to in_class to match changes in function that
use this macro.
* include/opcode/ia64.h (struct ia64_operand): Renamed member
class to op_class
* ld/emultempl/elf32.em (gld${EMULATION_NAME}_load_symbols)
(gld${EMULATION_NAME}_try_needed): Rename variable class to
link_class
* opcodes/ia64-dis.c (print_insn_ia64): Update code to use renamed
member.
* opcodes/m88k-dis.c (m88kdis): Rename variable class to in_class.
* opcodes/tic80-opc.c (tic80_symbol_to_value)
(tic80_value_to_symbol): Rename argument class to symbol_class.
Fix references past allocated memory for i386-*-go32.
* ti.h (COFF_ADJUST_FILEHDR_IN_POST, COFF_ADJUST_FILEHDR_OUT_POST):
Reference F_TARGET_ID only when !COFF0_P.
Stop using bfd_usrdata in libbfd.
* coff-stgo32.c (bfd_coff_go32stub): Remove.
(stub_bytes, comment): Replace STUBSIZE by GO32_STUBSIZE.
(adjust_filehdr_in_post): Declare the abfd parameter as unused.
Replace STUBSIZE by GO32_STUBSIZE. Save now the stub in
filehdr_dst->u.go32.stub. New comment with the reason.
(adjust_filehdr_out_pre): Replace STUBSIZE by GO32_STUBSIZE.
Substitute the removed macro bfd_coff_go32stub.
(adjust_filehdr_out_post, adjust_scnhdr_in_post, adjust_scnhdr_out_pre)
(adjust_scnhdr_out_post, adjust_aux_in_post, adjust_aux_out_pre)
(adjust_aux_out_post): Replace STUBSIZE by GO32_STUBSIZE.
(create_go32_stub, go32_stubbed_coff_bfd_copy_private_bfd_data):
Replace STUBSIZE by GO32_STUBSIZE. Substitute the removed macro
bfd_coff_go32stub.
* coffcode.h (coff_mkobject_hook): Initialize coff->go32stub.
* libcoff-in.h (coff_data_type): New field go32stub.
* libcoff.h: Regenerated.
include/coff/
Stop using bfd_usrdata in libbfd.
* go32exe.h (struct external_filehdr_go32_exe <stub>, FILHSZ): Replace
STUBSIZE by GO32_STUBSIZE.
(STUBSIZE): Move the definition ...
* internal.h (GO32_STUBSIZE): ... here and rename it.
(struct internal_filehdr <go32stub>, F_GO32STUB): New.
* xcoff.h (XCOFF_EXPALL, XCOFF_EXPFULL): New flags.
(xcoff_loader_info): Add auto_export_flags.
bfd/
* bfd-in.h (bfd_xcoff_size_dynamic_sections): Replace the
bfd_boolean export_defineds parameter with an unsigned int
auto_export_flags parameter.
* bfd-in2.h: Regenerate.
* xcofflink.c (xcoff_archive_contains_shared_object_p): New function,
split out from xcoff_build_ldsyms.
(xcoff_covered_by_expall_p): New function.
(xcoff_auto_export_p): New function, split out from xcoff_build_ldsyms
but with extra code to handle -bexpfull and -bexpall.
(xcoff_mark_auto_exports): New function.
(xcoff_build_ldsyms): Use xcoff_auto_export_p to decide whether
a function should be automatically exported.
(bfd_xcoff_size_dynamic_sections): Replace the export_defineds
parameter with an auto_export_flags parameter. Update ldinfo
accordingly. Use xcoff_mark_auto_exports to mark all automatically-
exported symbols.
ld/
* emultempl/aix.em (auto_export_flags): New variable.
(explicit_auto_export_flags): Likewise.
(OPTION_EXPALL, OPTION_EXPFULL): New enum values.
(OPTION_NOEXPALL, OPTION_NOEXPFULL): Likewise.
(gld${EMULATION_NAME}_add_options): Add -bexpall, -bexpfull,
-bnoexpall and -bnoexpfull.
(gld${EMULATION_NAME}_handle_option): Handle them.
(gld${EMULATION_NAME}_before_allocation): Update the call to
bfd_size_dynamic_sections.
ld/testsuite/
* ld-powerpc/aix-export-1-all.dd, ld-powerpc/aix-export-1-full.dd,
ld-powerpc/aix-export-1a.s, ld-powerpc/aix-export-1b.s: New tests.
* ld-powerpc/aix52.exp: Run them.
* internal.h (C_AIX_WEAKEXT): New macro.
(C_WEAKEXT): Use the GNU definition in the generic part of the file,
and conditionally reset it to C_AIX_WEAKEXT in the XCOFF part of
the file.
(CSECT_SYM_P): New macro.
* xcoff.h (L_WEAK): Define.
(EXTERN_SYM_P): New macro.
bfd/
* coffcode.h (coff_pointerize_aux_hook): Update CSECT_SYM_P to
check whether a symbol has csect information.
(coff_print_aux): Likewise.
* coff-rs6000.c (_bfd_xcoff_swap_aux_in): Handle auxillary csect
information for C_AIX_WEAKEXT too.
(_bfd_xcoff_swap_aux_out): Likewise.
(xcoff_reloc_type_br): Handle defweak symbols too.
* coff64-rs6000.c (_bfd_xcoff64_swap_aux_in): Handle auxillary csect
information for C_AIX_WEAKEXT too.
(_bfd_xcoff64_swap_aux_out): Likewise.
(xcoff64_reloc_type_br): Handle defweak symbols too.
* coffgen.c (coff_print_symbol): Handle auxillary function
information for C_AIX_WEAKEXT too.
* xcofflink.c (_bfd_xcoff_canonicalize_dynamic_symtab): Set BSF_WEAK
instead of BSF_GLOBAL if the L_WEAK flag is set.
(xcoff_dynamic_definition_p): New function.
(xcoff_link_add_dynamic_symbols): Use it to decide whether ldsym
defines h. Don't change h if ldsym isn't the definition. Otherwise,
always take the symbol class from the ldsym. Use weak bfd symbol
types for weak ldsyms.
(xcoff_link_add_symbols): Use CSECT_SYM_P and EXTERN_SYM_P.
Fix the check for whether a definition is from a shared object.
Allow redefinitions of weak symbols.
(xcoff_link_check_ar_symbols): Use EXTERN_SYM_P.
(xcoff_keep_symbol_p): Likewise.
(bfd_xcoff_size_dynamic_sections): Use CSECT_SYM_P.
(xcoff_link_input_bfd): Use CSECT_SYM_P and EXTERN_SYM_P.
Add .loader entries for C_AIX_WEAKEXT as well as C_EXT symbols,
but mark them as L_WEAK.
(xcoff_write_global_symbol): Treat weak symbols as C_AIX_WEAKEXT
instead of C_EXT if C_AIX_WEAKEXT == C_WEAKEXT.
gas/
* config/tc-ppc.c (ppc_frob_symbol): Add csect information for
C_AIX_WEAKEXT too.
ld/testsuite/
* ld-powerpc/aix-glink-2a.s, ld-powerpc/aix-glink-2a.ex,
ld-powerpc/aix-glink-2b.s, ld-powerpc/aix-glink-2c.s,
ld-powerpc/aix-glink-2c.ex, ld-powerpc/aix-glink-2d.s,
ld-powerpc/aix-glink-2-32.dd, ld-powerpc/aix-glink-2-64.dd,
ld-powerpc/aix-weak-1a.s, ld-powerpc/aix-weak-1b.s,
ld-powerpc/aix-weak-1-rel.hd, ld-powerpc/aix-weak-1-rel.nd,
ld-powerpc/aix-weak-1-dso.hd, ld-powerpc/aix-weak-1-dso.nd,
ld-powerpc/aix-weak-1-dso.dnd, ld-powerpc/aix-weak-1.ex,
ld-powerpc/aix-weak-2a.s, ld-powerpc/aix-weak-2a.ex,
ld-powerpc/aix-weak-2a.nd, ld-powerpc/aix-weak-2b.s,
ld-powerpc/aix-weak-2b.nd, ld-powerpc/aix-weak-2c.s,
ld-powerpc/aix-weak-2c.ex, ld-powerpc/aix-weak-2c.nd,
ld-powerpc/aix-weak-2c.od, ld-powerpc/aix-weak-3a.s,
ld-powerpc/aix-weak-3a.ex, ld-powerpc/aix-weak-3b.s,
ld-powerpc/aix-weak-3b.ex, ld-powerpc/aix-weak-3-32.d,
ld-powerpc/aix-weak-3-32.dd, ld-powerpc/aix-weak-3-64.d,
ld-powerpc/aix-weak-3-64.dd: New tests.
* ld-powerpc/aix52.exp: Run them. Replace tmp/aix-* with
tmp/aix64-* in 64-bit ld options.
* xcoff.h (XCOFF_ALLOCATED): New flag.
bfd/
* xcofflink.c (xcoff_mark): When walking the relocations,
only mark the target symbol or the target section, not both.
(xcoff_final_definition_p): New function.
(xcoff_keep_symbol_p): Use it to check whether an external XCOFF
symbol is a valid definition of the associated output symbol.
Use XCOFF_ALLOCATED to stop the same hash table entry having
two output symbols.
(bfd_xcoff_size_dynamic_sections): Set XCOFF_ALLOCATED when
keeping a symbol.
(xcoff_link_input_bfd): Use xcoff_final_definition_p.
ld/testsuite/
* ld-powerpc/aix-no-dup-syms-1a.s, ld-powerpc/aix-no-dup-syms-1b.s,
ld-powerpc/aix-no-dup-syms-1.ex, ld-powerpc/aix-no-dup-syms-1.im,
ld-powerpc/aix-no-dup-syms-1-dso.dnd,
ld-powerpc/aix-no-dup-syms-1-dso.drd,
ld-powerpc/aix-no-dup-syms-1-dso.nd,
ld-powerpc/aix-no-dup-syms-1-dso.rd,
ld-powerpc/aix-no-dup-syms-1-rel.nd,
ld-powerpc/aix-no-dup-syms-1-rel.rd: New tests.
* ld-powerpc/aix52.exp: Run them.
* xcoff.h (XCOFF_CALLED, XCOFF_IMPORT): Update comments.
(XCOFF_WAS_UNDEFINED): New flag.
(xcoff_link_hash_table): Add an "rtld" field.
bfd/
* coff-rs6000.c (xcoff_ppc_relocate_section): Report relocations
against undefined symbols if the symbol's XCOFF_WAS_UNDEFINED
flag is set. Assert that all undefined symbols are either
imported or defined by a dynamic object.
* coff64-rs6000.c (xcoff64_ppc_relocate_section): Likewise.
* xcofflink.c (xcoff_link_add_symbols): Extend function-symbol
handling to all relocations. Only set XCOFF_CALLED for function
symbols.
(xcoff_find_function): New function, split out from...
(bfd_xcoff_export_symbol) ...here.
(xcoff_set_import_path): New function, split out from...
(bfd_xcoff_import_symbol): ...here. Remove assertion for old
meaning of XCOFF_CALLED.
(xcoff_mark_symbol): If we mark an undefined and unimported
symbol, find some way of defining it. If the symbol is a function
descriptor, fill in its definition automatically. If the symbol
is a function, mark its descriptor and allocate room for global
linkage code. Otherwise mark the symbol as implicitly imported.
Move the code for creating function descriptors from...
(xcoff_build_ldsyms): ...here. Use XCOFF_WAS_UNDEFINED to
check for symbols that were implicitly defined.
(xcoff_mark): Don't count any dynamic relocations against
function symbols.
(bfd_xcoff_size_dynamic_sections): Save the rtld parameter
in the xcoff link info.
(xcoff_link_input_bfd): Remove handling of undefined and
unexported symbols.
ld/
* emultempl/aix.em (gld${EMULATION_NAME}_handle_option): Make
-berok and -bernotok control link_info.unresolved_syms_in_objects
and link_info.unresolved_syms_in_shared_libs instead of
force_make_executable.
ld/testsuite/
* ld-powerpc/aix-glink-1.ex, ld-powerpc/aix-glink-1.s,
ld-powerpc/aix-glink-1-32.dd, ld-powerpc/aix-glink-1-64.dd,
ld-powerpc/aix-glink-1-32.d, ld-powerpc/aix-glink-1-64.d: New tests.
* ld-powerpc/aix52.exp: Run them.
2009-03-12 Dave Korn <dave.korn.cygwin@gmail.com>
* coff/internal.h (struct internal_extra_pe_aouthdr): Correct type
of DllCharacteristics flags field to unsigned.
* coff/pe.h (IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE,
IMAGE_DLL_CHARACTERISTICS_DYNAMIC_BASE,
IMAGE_DLL_CHARACTERISTICS_NX_COMPAT,
IMAGE_DLLCHARACTERISTICS_NO_ISOLATION,
IMAGE_DLLCHARACTERISTICS_NO_SEH,
IMAGE_DLLCHARACTERISTICS_NO_BIND,
IMAGE_DLLCHARACTERISTICS_WDM_DRIVER,
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE): New macros to
define flag bit values for DllCharacteristics field of PEAOUTHDR,
PEPAOUTHDR.
ld/ChangeLog
2009-03-12 Dave Korn <dave.korn.cygwin@gmail.com>
Danny Smith <dannysmith@users.sourceforge.net>
* emultmpl/pe.em (pe_dll_characteristics): New variable.
(OPTION_DYNAMIC_BASE, OPTION_FORCE_INTEGRITY, OPTION_NX_COMPAT,
OPTION_NO_ISOLATION. OPTION_NO_SEH, OPTION_NO_BIND,
OPTION_WDM_DRIVER, OPTION_TERMINAL_SERVER_AWARE):
New macros for options to set DllCharacteristics flag bits.
(gld${EMULATION_NAME}_add_options): Add dynamicbase, forceinteg,
nxcompat, no-isolation, no-seh, no-bind, wdmdriver, tsaware options.
(init): Add DllCharacteristics field.
(gld_${EMULATION_NAME}_list_options): List new options.
(gld${EMULATION_NAME}_handle_option): Handle new options.
* emultmpl/pep.em (pe_dll_characteristics): New variable.
(OPTION_DYNAMIC_BASE, OPTION_FORCE_INTEGRITY, OPTION_NX_COMPAT,
OPTION_NO_ISOLATION. OPTION_NO_SEH, OPTION_NO_BIND,
OPTION_WDM_DRIVER, OPTION_TERMINAL_SERVER_AWARE):
New macros for options to set DllCharacteristics flags.
(gld${EMULATION_NAME}_add_options): Add dynamicbase, forceinteg,
nxcompat,no-isolation, no-seh, no-bind, wdmdriver, tsaware options.
(init): Add DllCharacteristics field.
(gld_${EMULATION_NAME}_list_options): List new options.
(gld${EMULATION_NAME}_handle_option): Handle new options.
* ldtexinfo : Document dynamicbase, forceinteg, nxcompat,
no-isolation, no-seh, no-bind, wdmdriver, tsaware options.
* ti.h (GET_SCNHDR_NLNNO): Provide an alternative version of this
macro which does not trigger an array bounds warning in gcc.
(PUT_SCNHDR_NLNNO): Likewise.
(GET_SCNHDR_FLAGS): Likewise.
(PUT_SCNHDR_FLAGS): Likewise.
(GET_SCNHDR_PAGE): Likewise.
(PUT_SCNHDR_PAGE): Likewise.
(dir_names): Added CLR Runtime Header to dir_names[].
(_bfd_XX_print_private_bfd_data_common): Added EFI_ROM and XBOX subsystem names
(_bfd_XXi_swap_aouthdr_in, _bfd_XXi_swap_aouthdr_out)
(pe_print_idata, pe_print_edata)
(_bfd_XX_bfd_copy_private_bfd_data_common)
(_bfd_XXi_final_link_postscript): Use #DEFINEs for index into DataDirectory.
* pe.h: Added defines for IMAGE_SUBSYSTEM_EFI_ROM and IMAGE_SUBSYSTEM_XBOX.
* internal.h: Added defines for PE directory entry types.
NB: in internal.h because IMAGE_NUMBEROF_DIRECTORY_ENTRYIES is in pe.h
