binutils-gdb/ld/testsuite/ld-powerpc/relbrlt.s

 .text
 .global _start
_start:
1:
 bl far
 nop
 bl far2far
 nop
 bl huge
 nop
 .long 0
 b 1b
 .space 0x1bf0000

 .section .text.pad1,"ax"
 .space 0x1bf0000

 .section .text.far,"ax"
far:
 blr

 .section .text.pad2,"ax"
 .space 0x40ffe0

 .section .text.far2far,"ax"
far2far:
 blr

 .section .text.pad3,"ax"
 .space 0x1bf0000

 .section .text.huge,"ax"
huge:
 blr
* ld-powerpc/plt1.s: New. * ld-powerpc/plt1.d: New. * ld-powerpc/relbrlt.s: New. * ld-powerpc/relbrlt.d: New. * ld-powerpc/powerpc.exp: Run them. 2006-10-24 21:29:37 +08:00			`.text`
			`.global _start`
			`_start:`
			`1:`
			`bl far`
			`nop`
			`bl far2far`
			`nop`
			`bl huge`
			`nop`
			`.long 0`
			`b 1b`
			`.space 0x1bf0000`

			`.section .text.pad1,"ax"`
			`.space 0x1bf0000`

			`.section .text.far,"ax"`
			`far:`
			`blr`

			`.section .text.pad2,"ax"`
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 07:52:53 +08:00			`.space 0x40ffe0`
* ld-powerpc/plt1.s: New. * ld-powerpc/plt1.d: New. * ld-powerpc/relbrlt.s: New. * ld-powerpc/relbrlt.d: New. * ld-powerpc/powerpc.exp: Run them. 2006-10-24 21:29:37 +08:00
			`.section .text.far2far,"ax"`
			`far2far:`
			`blr`

			`.section .text.pad3,"ax"`
			`.space 0x1bf0000`

			`.section .text.huge,"ax"`
			`huge:`
			`blr`