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2d7ad24e87
binutils-gdb/ld/emulparams
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Alan Modra 2d7ad24e87 Support PLT16 relocs against local symbols 
Necessary if gcc is to use PLT16 relocs to implement -mlongcall, and
there isn't a good technical reason why local symbols should be
excluded from PLT16 support.  Non-ifunc local symbol PLT entries go in
a separate section to other PLT entries.  In a fixed position
executable they won't need to be relocated, and in a PIE or shared
library I chose to not implement lazy relocation.

bfd/
	* elf64-ppc.c (LOCAL_PLT_ENTRY_SIZE): Define.
	(struct ppc_stub_hash_entry): Add symtype field.
	(PLT_KEEP): Define.
	(struct ppc_link_hash_table): Add pltlocal and relpltlocal.
	(create_linkage_sections): Create pltlocal and relpltlocal.
	(ppc64_elf_check_relocs): Allow PLT relocs on local symbols.
	Set PLT_KEEP.
	(ppc64_elf_adjust_dynamic_symbol): Keep PLT entries for inline calls.
	(allocate_dynrelocs): Allocate pltlocal and relpltlocal.
	(ppc64_elf_size_dynamic_sections): Size pltlocal and relpltlocal.
	Keep PLT entries for inline calls against locals.
	(ppc_build_one_stub): Use pltlocal as appropriate.
	(ppc_size_one_stub): Likewise.
	(ppc64_elf_size_stubs): Set symtype.
	(build_global_entry_stubs_and_plt): Init pltlocal and write
	relpltlocal for globals.
	(write_plt_relocs_for_local_syms): Likewise for local syms.
	(ppc64_elf_relocate_section): Support PLT for local syms.
	* elf32-ppc.c (PLT_KEEP): Define.
	(struct ppc_elf_link_hash_table): Add pltlocal and relpltlocal.
	(ppc_elf_create_glink): Create pltlocal and relpltlocal.
	(ppc_elf_check_relocs): Allow PLT relocs on local symbols.
	Set PLT_KEEP.  Adjust update_local_sym_info call.
	(ppc_elf_adjust_dynamic_symbol): Keep PLT entries for inline calls.
	(allocate_dynrelocs): Allocate pltlocal and relpltlocal.
	(ppc_elf_size_dynamic_sections): Size pltlocal and relpltlocal.
	(ppc_elf_relocate_section): Support PLT16 relocs for local syms.
	(write_global_sym_plt): Init pltlocal and write relpltlocal.
	(ppc_finish_symbols): Likewise for locals.
ld/
	* emulparams/elf32ppc.sh (OTHER_RELRO_SECTIONS_2): Add .branch_lt.
	(OTHER_GOT_RELOC_SECTIONS): Add .rela.branch_lt.
	* testsuite/ld-powerpc/elfv2so.d: Update for symbol/stub reordering.
	* testsuite/ld-powerpc/relbrlt.d: Likewise.
	* testsuite/ld-powerpc/relbrlt.s: Likewise.
	* testsuite/ld-powerpc/tlsso.r: Likewise.
	* testsuite/ld-powerpc/tlstocso.r: Likewise.
gold/
	* powerpc.cc (Target_powerpc::lplt_): New variable.
	(Target_powerpc::lplt_section): Associated accessor.
	(Target_powerpc::plt_off): Handle local non-ifunc symbols.
	(Target_powerpc::make_lplt_section): New function.
	(Target_powerpc::make_local_plt_entry): New function.
	(Powerpc_relobj::do_relocate_sections): Write out lplt.
	(Output_data_plt_powerpc::first_plt_entry_offset): Zero for lplt.
	(Output_data_plt_powerpc::add_local_entry): New function.
	(Output_data_plt_powerpc::do_write): Ignore lplt.
	(Target_powerpc::make_iplt_section): Make lplt first.
	(Target_powerpc::make_brlt_section): Make .branch_lt relro.
	(Target_powerpc::Scan::local): Handle PLT16 relocs.
2018-04-09 17:05:09 +09:30
..
aarch64cloudabi.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64cloudabib.sh
aarch64elf32.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64elf32b.sh
aarch64elf.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64elfb.sh
aarch64fbsd.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64fbsdb.sh
aarch64linux32.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64linux32b.sh
aarch64linux.sh Ensure 8-byte alignment for AArch64 stubs. 2018-03-02 10:49:20 +00:00
aarch64linuxb.sh
aix5ppc.sh
aix5rs6.sh
aixppc.sh
aixrs6.sh
alpha.sh
alphavms.sh
arc-endianness.sh ld whitespace fixes 2017-10-12 23:30:43 +10:30
arc-nps.sh
arcelf_prof.sh
arcelf.sh [ARC] Add JLI support. 2017-07-19 09:56:55 +02:00
arclinux_nps.sh
arclinux_prof.sh
arclinux.sh
arcv2elf.sh [ARC] Add JLI support. 2017-07-19 09:56:55 +02:00
arcv2elfx.sh [ARC] Add JLI support. 2017-07-19 09:56:55 +02:00
arm_epoc_pe.sh
arm_wince_pe.sh
armaoutb.sh
armaoutl.sh
armcoff.sh
armelf_fbsd.sh
armelf_fuchsia.sh
armelf_linux_eabi.sh
armelf_linux.sh
armelf_nacl.sh
armelf_nbsd.sh
armelf_phoenix.sh
armelf_vxworks.sh
armelf.sh
armelfb_fbsd.sh
armelfb_fuchsia.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
call_nop.sh ld error/warning messages 2018-02-26 10:51:12 +10:30
cet.sh ld error/warning messages 2018-02-26 10:51:12 +10:30
coff_i860.sh
coff_sparc.sh
crisaout.sh
criself.sh
crislinux.sh
d10velf.sh
d30v_e.sh
d30v_o.sh
d30velf.sh
delta68.sh
dynamic_undefined_weak.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
elf32_tic6x_linux_be.sh
elf32_tic6x_linux_le.sh
elf32_x86_64_nacl.sh
elf32_x86_64.sh ld: Add OTHER_PLT_SECTIONS 2017-11-12 07:25:36 -08:00
elf32am33lin.sh
elf32b4300.sh
elf32bfin.sh
elf32bfinfd.sh
elf32bmip.sh
elf32bmipn32-defs.sh
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
elf32lriscv-defs.sh RISC-V: Disable shared library support for embedded elf. 2018-01-05 14:29:49 -08:00
elf32lriscv.sh
elf32lsmip.sh
elf32ltsmip_fbsd.sh
elf32ltsmip.sh
elf32ltsmipn32_fbsd.sh
elf32ltsmipn32.sh
elf32m32c.sh
elf32mb_linux.sh
elf32mbel_linux.sh
elf32mcore.sh ld error/warning messages 2018-02-26 10:51:12 +10:30
elf32mep.sh
elf32metag.sh
elf32microblaze.sh
elf32microblazeel.sh
elf32mipswindiss.sh MIPS/LD: Correct `mips-*-windiss' target emulation configuration 2018-01-26 23:05:06 +00:00
elf32moxie.sh
elf32mt.sh
elf32or1k_linux.sh
elf32or1k.sh
elf32ppc_fbsd.sh
elf32ppc.sh Support PLT16 relocs against local symbols 2018-04-09 17:05:09 +09:30
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 xtensa: ld: support -z relro 2018-03-07 13:05:12 -08:00
elf64_aix.sh
elf64_ia64_fbsd.sh
elf64_ia64_vms.sh
elf64_ia64.sh Stop the IA64 linker from removing unwind tables when garbage collecting. 2018-04-05 14:44:05 +01:00
elf64_s390.sh S/390: Add support for pgste marker 2017-06-23 08:00:46 +02:00
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
elf64lriscv-defs.sh
elf64lriscv.sh
elf64ltsmip_fbsd.sh
elf64ltsmip.sh
elf64mmix.sh ld whitespace fixes 2017-10-12 23:30:43 +10:30
elf64ppc_fbsd.sh
elf64ppc.sh
elf64rdos.sh
elf64tilegx_be.sh
elf64tilegx.sh
elf_fbsd.sh
elf_i386_be.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
elf_i386_chaos.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
elf_i386_fbsd.sh
elf_i386_ldso.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
elf_i386_nacl.sh
elf_i386_sol2.sh
elf_i386_vxworks.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
elf_i386.sh ld: Add OTHER_PLT_SECTIONS 2017-11-12 07:25:36 -08:00
elf_iamcu.sh ld: Add OTHER_PLT_SECTIONS 2017-11-12 07:25:36 -08:00
elf_k1om_fbsd.sh
elf_k1om.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
elf_l1om_fbsd.sh
elf_l1om.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -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 ld: Add OTHER_PLT_SECTIONS 2017-11-12 07:25:36 -08:00
extern_protected_data.sh
gld960.sh
gld960coff.sh
h8300.sh
h8300elf_linux.sh ld whitespace fixes 2017-10-12 23:30:43 +10:30
h8300elf.sh ld whitespace fixes 2017-10-12 23:30:43 +10:30
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 ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
i386mach.sh
i386moss.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
i386msdos.sh
i386nbsd.sh
i386nto.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
i386nw.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
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
msp430elf.sh
msp430X.sh
nds32belf16m.sh
nds32belf_linux.sh
nds32belf.sh
nds32elf16m.sh
nds32elf_linux.sh
nds32elf.sh
news.sh
nios2elf.sh Disable -shared support in nios2-elf-ld. 2018-02-02 23:00:02 -08:00
nios2linux.sh
ns32knbsd.sh
pc532macha.sh
pdp11.sh
pjelf.sh
pjlelf.sh
plt_unwind.sh
ppclynx.sh
ppcmacos.sh
ppcnw.sh
ppcpe.sh
pruelf.sh
README Update year range in copyright notice of binutils files 2018-01-03 17:49:56 +10:30
reloc_overflow.sh
riscix.sh
score3_elf.sh
score7_elf.sh
sh.sh
shelf32_linux.sh
shelf32_nbsd.sh
shelf32.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shelf64_nbsd.sh
shelf64.sh
shelf_fd.sh
shelf_linux.sh
shelf_nbsd.sh
shelf_nto.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shelf_uclinux.sh
shelf_vxworks.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shelf.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shl.sh
shlelf32_linux.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shlelf32_nbsd.sh
shlelf32.sh
shlelf64_nbsd.sh
shlelf64.sh
shlelf_fd.sh
shlelf_linux.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
shlelf_nbsd.sh
shlelf_nto.sh ELF: Call check_relocs after opening all inputs 2017-10-16 03:50:13 -07:00
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 ld whitespace fixes 2017-10-12 23:30:43 +10:30
w65.sh
xgateelf.sh
z80.sh
z8001.sh
z8002.sh

README

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