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889c2a6796
binutils-gdb/ld/emulparams
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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
..
aarch64elf32.sh
aarch64elf32b.sh
aarch64elf.sh
aarch64elfb.sh
aarch64fbsd.sh Add support for configuring an aarch64-freebsd target. 2015-04-02 15:07:27 +01:00
aarch64fbsdb.sh Add support for configuring an aarch64-freebsd target. 2015-04-02 15:07:27 +01:00
aarch64linux32.sh
aarch64linux32b.sh
aarch64linux.sh
aarch64linuxb.sh
aix5ppc.sh
aix5rs6.sh
aixppc.sh
aixrs6.sh
alpha.sh
alphavms.sh
arcelf.sh
arm_epoc_pe.sh
arm_wince_pe.sh
armaoutb.sh
armaoutl.sh
armcoff.sh
armelf_fbsd.sh
armelf_linux_eabi.sh
armelf_linux.sh
armelf_nacl.sh
armelf_nbsd.sh
armelf_vxworks.sh
armelf.sh
armelfb_fbsd.sh
armelfb_linux_eabi.sh
armelfb_linux.sh
armelfb_nacl.sh
armelfb_nbsd.sh
armelfb.sh
armnbsd.sh
armnto.sh
armpe.sh
armsymbian.sh
avr1.sh
avr2.sh
avr3.sh
avr4.sh
avr5.sh
avr6.sh
avr25.sh
avr31.sh
avr35.sh
avr51.sh
avrtiny.sh
avrxmega1.sh
avrxmega2.sh
avrxmega3.sh
avrxmega4.sh
avrxmega5.sh
avrxmega6.sh
avrxmega7.sh
coff_i860.sh
coff_sparc.sh
crisaout.sh
criself.sh
crislinux.sh
d10velf.sh
d30v_e.sh
d30v_o.sh
d30velf.sh
delta68.sh
elf32_dlx.sh
elf32_i860.sh
elf32_i960.sh
elf32_sparc_sol2.sh
elf32_sparc_vxworks.sh
elf32_sparc.sh
elf32_spu.sh
elf32_tic6x_be.sh
elf32_tic6x_elf_be.sh
elf32_tic6x_elf_le.sh
elf32_tic6x_le.sh Prevent multiple definitions for _HEAP_START, _HEAP_MAX, and _STACK_START when performing a relocatable link with a tic6x target. 2015-04-01 11:29:46 +01:00
elf32_tic6x_linux_be.sh
elf32_tic6x_linux_le.sh
elf32_x86_64_nacl.sh
elf32_x86_64.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf32am33lin.sh
elf32b4300.sh
elf32bfin.sh
elf32bfinfd.sh
elf32bmip.sh
elf32bmipn32-defs.sh Skip empty EMULATION_NAME 2015-04-08 09:46:50 -07:00
elf32bmipn32.sh
elf32bsmip.sh
elf32btsmip_fbsd.sh
elf32btsmip.sh
elf32btsmipn32_fbsd.sh
elf32btsmipn32.sh
elf32cr16.sh
elf32cr16c.sh
elf32crx.sh
elf32ebmip.sh
elf32ebmipvxworks.sh
elf32elmip.sh
elf32elmipvxworks.sh
elf32epiphany_4x4.sh
elf32epiphany.sh
elf32fr30.sh
elf32frv.sh
elf32frvfd.sh
elf32ft32.sh
elf32i370.sh
elf32ip2k.sh
elf32iq10.sh
elf32iq2000.sh
elf32l4300.sh
elf32lm32.sh
elf32lm32fd.sh
elf32lmip.sh
elf32lppc.sh
elf32lppclinux.sh
elf32lppcnto.sh
elf32lppcsim.sh
elf32lr5900.sh
elf32lr5900n32.sh
elf32lsmip.sh
elf32ltsmip_fbsd.sh
elf32ltsmip.sh
elf32ltsmipn32_fbsd.sh
elf32ltsmipn32.sh
elf32m32c.sh
elf32mb_linux.sh
elf32mbel_linux.sh
elf32mcore.sh
elf32mep.sh
elf32metag.sh
elf32microblaze.sh
elf32microblazeel.sh
elf32mipswindiss.sh
elf32moxie.sh
elf32mt.sh
elf32or1k_linux.sh
elf32or1k.sh
elf32ppc_fbsd.sh
elf32ppc.sh
elf32ppccommon.sh
elf32ppclinux.sh
elf32ppcnto.sh
elf32ppcsim.sh
elf32ppcvxworks.sh
elf32ppcwindiss.sh
elf32rl78.sh
elf32rx.sh
elf32tilegx_be.sh
elf32tilegx.sh
elf32tilepro.sh
elf32vax.sh
elf32visium.sh
elf32xc16x.sh
elf32xc16xl.sh
elf32xc16xs.sh
elf32xstormy16.sh
elf32xtensa.sh
elf64_aix.sh
elf64_ia64_fbsd.sh
elf64_ia64_vms.sh
elf64_ia64.sh
elf64_s390.sh
elf64_sparc_fbsd.sh
elf64_sparc_sol2.sh
elf64_sparc.sh
elf64alpha_fbsd.sh
elf64alpha_nbsd.sh
elf64alpha.sh
elf64bmip-defs.sh
elf64bmip.sh
elf64btsmip_fbsd.sh
elf64btsmip.sh
elf64hppa.sh
elf64lppc.sh
elf64ltsmip_fbsd.sh
elf64ltsmip.sh
elf64mmix.sh
elf64ppc_fbsd.sh
elf64ppc.sh
elf64rdos.sh
elf64tilegx_be.sh
elf64tilegx.sh
elf_fbsd.sh
elf_i386_be.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_i386_chaos.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_i386_fbsd.sh
elf_i386_ldso.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_i386_nacl.sh
elf_i386_sol2.sh
elf_i386_vxworks.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_i386.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_k1om_fbsd.sh
elf_k1om.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_l1om_fbsd.sh
elf_l1om.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
elf_nacl.sh
elf_s390.sh
elf_x86_64_cloudabi.sh
elf_x86_64_fbsd.sh
elf_x86_64_nacl.sh
elf_x86_64_sol2.sh
elf_x86_64.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
extern_protected_data.sh Add -z noextern-protected-data to ld for ELF/x86 2015-04-14 04:13:11 -07:00
gld960.sh
gld960coff.sh
h8300.sh
h8300elf_linux.sh
h8300elf.sh
h8300h.sh
h8300helf_linux.sh
h8300helf.sh
h8300hn.sh
h8300hnelf.sh
h8300s.sh
h8300self_linux.sh
h8300self.sh
h8300sn.sh
h8300snelf.sh
h8300sx.sh
h8300sxelf_linux.sh
h8300sxelf.sh
h8300sxn.sh
h8300sxnelf.sh
h8500.sh
h8500b.sh
h8500c.sh
h8500m.sh
h8500s.sh
hp3hpux.sh
hp300bsd.sh
hppa64linux.sh
hppaelf.sh
hppalinux.sh
hppanbsd.sh
hppaobsd.sh
i386aout.sh
i386beos.sh
i386bsd.sh
i386coff.sh
i386go32.sh
i386linux.sh
i386lynx.sh
i386mach.sh
i386moss.sh
i386msdos.sh
i386nbsd.sh
i386nto.sh
i386nw.sh
i386pe_posix.sh
i386pe.sh
i386pep.sh
lnk960.sh
m32relf_linux.sh
m32relf.sh
m32rlelf_linux.sh
m32rlelf.sh
m68hc11elf.sh
m68hc11elfb.sh
m68hc12elf.sh
m68hc12elfb.sh
m68k4knbsd.sh
m68kaout.sh
m68kaux.sh
m68kcoff.sh
m68kelf.sh
m68kelfnbsd.sh
m68klinux.sh
m68knbsd.sh
m68kpsos.sh
m88kbcs.sh
mcorepe.sh
mmo.sh
mn10200.sh
mn10300.sh
moxiebox.sh
msp430.sh
msp430X.sh
nds32belf16m.sh
nds32belf_linux.sh
nds32belf.sh
nds32elf16m.sh
nds32elf_linux.sh
nds32elf.sh
news.sh
nios2elf.sh
nios2linux.sh
ns32knbsd.sh
pc532macha.sh
pdp11.sh
pjelf.sh
pjlelf.sh
plt_unwind.sh Add ld_list_options 2015-04-08 04:55:23 -07:00
ppclynx.sh
ppcmacos.sh
ppcnw.sh
ppcpe.sh
README
riscix.sh
score3_elf.sh
score7_elf.sh
sh.sh
shelf32_linux.sh
shelf32_nbsd.sh
shelf32.sh
shelf64_nbsd.sh
shelf64.sh
shelf_fd.sh
shelf_linux.sh
shelf_nbsd.sh
shelf_nto.sh
shelf_uclinux.sh
shelf_vxworks.sh
shelf.sh
shl.sh
shlelf32_linux.sh
shlelf32_nbsd.sh
shlelf32.sh
shlelf64_nbsd.sh
shlelf64.sh
shlelf_fd.sh
shlelf_linux.sh
shlelf_nbsd.sh
shlelf_nto.sh
shlelf_vxworks.sh
shlelf.sh
shlsymbian.sh
shpe.sh
solaris2.sh
sparcaout.sh
sparclinux.sh
sparcnbsd.sh
st2000.sh
sun3.sh
sun4.sh
tic3xcoff_onchip.sh
tic3xcoff.sh
tic4xcoff.sh
tic30aout.sh
tic30coff.sh
tic54xcoff.sh
tic80coff.sh
v850_rh850.sh
v850.sh
vanilla.sh
vax.sh
vaxnbsd.sh
vsta.sh
vxworks.sh
w65.sh
xgateelf.sh
z80.sh
z8001.sh
z8002.sh

README

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