H.J. Lu 889c2a6796 Add -z noextern-protected-data to ld for ELF/x86 ... Address of protected data defined in the shared library may be external, i.e., due to copy relocation. By default, linker backend checks if relocations against protected data symbols are valid for building shared library and issues an error if relocation isn't allowed. The new option override linker backend default. When -z noextern-protected-data is used, updates on protected data symbols by another module won't be visibile to the resulting shared library. This option is specific to ELF/i386 and ELF/x86-64. bfd/ PR ld/pr17709 * elflink.c (_bfd_elf_adjust_dynamic_copy): Check info->extern_protected_data when warning copy relocs against protected symbols. (_bfd_elf_symbol_refs_local_p): Check info->extern_protected_data when checking protected non-function symbols. include/ PR ld/pr17709 * bfdlink.h (bfd_link_info): Add extern_protected_data. ld/ PR ld/pr17709 * ld.texinfo: Document "-z noextern-protected-data". * ldmain.c (main): Initialize link_info.extern_protected_data to -1. * lexsup.c (elf_shlib_list_options): Add "-z [no]extern-protected-data". * emulparams/elf32_x86_64.sh: Source extern_protected_data.sh. * 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_k1om.sh: Likewise. * emulparams/elf_l1om.sh: Likewise. * emulparams/elf_x86_64.sh: Source extern_protected_data.sh. (PARSE_AND_LIST_OPTIONS): Renamed to ... (PARSE_AND_LIST_OPTIONS_BNDPLT): This. (PARSE_AND_LIST_ARGS_CASE_Z): Renamed to ... (PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT): This. (PARSE_AND_LIST_OPTIONS): Append $PARSE_AND_LIST_OPTIONS_BNDPLT. (PARSE_AND_LIST_ARGS_CASE_Z): Append $PARSE_AND_LIST_ARGS_CASE_Z_BNDPLT. * emulparams/extern_protected_data.sh: New file. ld/testsuite/ PR ld/pr17709 * ld-i386/i386.exp: Run protected6b. * ld-i386/protected6b.d: New file. * ld-x86-64/protected6b.d: Likewise. * ld-x86-64/x86-64.exp: Run protected6b.		2015-04-14 04:13:11 -07:00
..
config
ld-aarch64	[AArch64] Workaround for Cortex A53 erratum 843419	2015-04-01 13:16:38 +01:00
ld-alpha	Properly place the NULL STT_FILE symbol revistited	2015-02-18 00:31:52 +10:30
ld-arm	Modify get_reloc_section for targets that map .got.plt to .got	2015-04-07 23:22:11 +09:30
ld-auto-import
ld-avr	AVR/ld: Use .avr.prop data during linker relaxation.	2015-02-25 23:19:11 +00:00
ld-bootstrap	Remove --with-zlib from ld	2015-03-31 03:59:04 -07:00
ld-cdtest
ld-checks
ld-cris	Strip undefined symbols from .symtab	2015-02-19 13:36:34 +10:30
ld-crx
ld-cygwin
ld-d10v
ld-discard
ld-elf	Add SHF_COMPRESSED support to gas and objcopy	2015-04-08 07:54:09 -07:00
ld-elfcomm
ld-elfvers
ld-elfvsb
ld-elfweak
ld-fastcall
ld-frv
ld-gc	Add a testcase for PR ld/18223	2015-04-10 04:15:53 -07:00
ld-h8300
ld-i386	Add -z noextern-protected-data to ld for ELF/x86	2015-04-14 04:13:11 -07:00
ld-ia64	Strip undefined symbols from .symtab	2015-02-19 13:36:34 +10:30
ld-ifunc
ld-libs
ld-linkonce
ld-m68hc11
ld-m68k
ld-mep
ld-metag
ld-mips-elf	Strip undefined symbols from .symtab	2015-02-19 13:36:34 +10:30
ld-misc
ld-mmix	Strip undefined symbols from .symtab	2015-02-19 13:36:34 +10:30
ld-mn10300
ld-nds32
ld-nios2
ld-pe
ld-pie
ld-plugin	Add a testcase for PR ld/17973	2015-02-14 06:26:20 -08:00
ld-powerpc	Fix ppc32 synthetic symbols when __tls_get_addr_opt stub is generated	2015-03-11 18:04:25 +10:30
ld-s390	Properly place the NULL STT_FILE symbol revistited	2015-02-18 00:31:52 +10:30
ld-scripts	Allow symbols in MEMORY region specification	2015-01-28 15:06:48 +10:30
ld-selective
ld-sh	[SH] Fix clrs, sets, pref insn arch memberships.	2015-02-25 21:26:59 +01:00
ld-shared
ld-size
ld-sparc	Pad only text sections at end by default	2015-02-28 22:26:56 +10:30
ld-spu
ld-srec
ld-tic6x	Modify get_reloc_section for targets that map .got.plt to .got	2015-04-07 23:22:11 +09:30
ld-tilegx	Pad only text sections at end by default	2015-02-28 22:26:56 +10:30
ld-tilepro	Pad only text sections at end by default	2015-02-28 22:26:56 +10:30
ld-undefined
ld-unique
ld-v850
ld-vax-elf
ld-versados
ld-visium
ld-vxworks
ld-x86-64	Add -z noextern-protected-data to ld for ELF/x86	2015-04-14 04:13:11 -07:00
ld-xc16x
ld-xstormy16
ld-xtensa
lib	Remove is_zlib_supported	2015-04-06 12:19:13 -07:00
ChangeLog	Add -z noextern-protected-data to ld for ELF/x86	2015-04-14 04:13:11 -07:00
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