Commit Graph

8 Commits

Author SHA1 Message Date
Alan Modra
b90efa5b79 ChangeLog rotatation and copyright year update 2015-01-02 00:53:45 +10:30
Alan Modra
4b95cf5c0c Update copyright years 2014-03-05 22:16:15 +10:30
Alan Modra
45965137be Support R_PPC64_ADDR64_LOCAL
This adds support for "func@localentry", an expression that returns the
ELFv2 local entry point address of function "func".  I've excluded
dynamic relocation support because that obviously would require glibc
changes.

include/elf/
	* ppc64.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
bfd/
	* elf64-ppc.c (ppc64_elf_howto_raw): Add R_PPC64_ADDR64_LOCAL entry.
	(ppc64_elf_reloc_type_lookup): Support R_PPC64_ADDR64_LOCAL.
	(ppc64_elf_check_relocs): Likewise.
	(ppc64_elf_relocate_section): Likewise.
	* Add BFD_RELOC_PPC64_ADDR64_LOCAL.
	* bfd-in2.h: Regenerate.
	* libbfd.h: Regenerate.
gas/
	* config/tc-ppc.c (ppc_elf_suffix): Support @localentry.
	(md_apply_fix): Support R_PPC64_ADDR64_LOCAL.
ld/testsuite/
	* ld-powerpc/elfv2-2a.s, ld-powerpc/elfv2-2b.s: New files.
	* ld-powerpc/elfv2-2exe.d, ld-powerpc/elfv2-2so.d: New files.
	* ld-powerpc/powerpc.exp: Run new test.
elfcpp/
	* powerpc.h (R_PPC64_REL24_NOTOC, R_PPC64_ADDR64_LOCAL): Define.
gold/
	* powerpc.cc (Target_powerpc::Scan::local, global): Support
	R_PPC64_ADDR64_LOCAL.
	(Target_powerpc::Relocate::relocate): Likewise.
2014-03-05 19:57:39 +10:30
Alan Modra
b4f7960d53 PowerPC64 ELFv2 support for gold.
elfcpp/
	* powerpc.h (EF_PPC64_ABI): New enum constant.
	(STO_PPC64_LOCAL_BIT, STO_PPC64_LOCAL_MASK): Likewise.
	(ppc64_decode_local_entry): New function.
	(ppc64_encode_local_entry): Likewise.
gold/
	* powerpc.cc (Powerpc_relobj::abiversion, set_abiversion,
	ppc64_local_entry_offset, ppc64_local_entry_offset,
	do_read_symbols): New functions.
	(Powerpc_relobj::e_flags_, st_other_): New vars.
	(Powerpc_relobj::Powerpc_relobj): Call set_abiversion.
	(Powerpc_dynobj::abiversion, set_abiversion): New functions.
	(Powerpc_relobj::e_flags_): New var.
	(Target_powerpc::first_plt_entry_offset, plt_entry_size): Inline
	and adjust for ELFv2.
	(Target_powerpc::abiversion, set_abiversion, stk_toc): New functions.
	(Powerpc_relobj::do_find_special_sections): Check no .opd in ELFv2.
	(Powerpc_dynobj::do_find_special_sections): Likewise.
	(Target_powerpc::do_define_standard_symbols): Define ".TOC.".
	(Target_powerpc::Branch_info::make_stub): Adjust stub destination
	to ELFv2 local entry.
	(Target_powerpc::do_relax): No thread safe barriers needed for
	ELFv2.
	(Output_data_plt_powerpc::initial_plt_entry_size_,
	plt_entry_size): Delete.  Replace all uses with
	first_plt_entry_offset() and plt_entry_size().
	(Output_data_plt_powerpc::Output_data_plt_powerpc): Remove
	reserved_size parm.  Update callers.
	(Output_data_plt_powerpc::entry_count): Update.
	(Output_data_plt_powerpc::first_plt_entry_offset): Make private
	and use Target_powerpc::first_plt_entry_offset().
	(Output_data_plt_powerpc::get_plt_entry_size): Similarly and
	rename to plt_entry_size.
	(Output_data_plt_powerpc::add_ifunc_entry,
	add_local_ifunc_entry): Adjust reloc for ELFv2.
	(glink_eh_frame_fde_64): Rename to glink_eh_frame_fde_64v1.
	(glink_eh_frame_fde_64v2): New.
	(Stub_table::plt_call_size): Support ELFv2 sizing.
	(Output_data_glink::add_eh_frame): Use the new FDE.
	(Output_data_glink::set_final_data_size): Adjust for ELFv2 glink.
	(Stub_table::do_write): Write ELFv2 stubs and glink.
	(Target_powerpc::Relocate::relocate): Replaces nop after call
	with ld 2,24(1) and adjust local offset destination for ELFv2.
2013-10-30 13:45:05 +10:30
Alan Modra
f9c6b9078c Report overflow on PowerPC64 @h and @ha relocations.
This changes the behaviour of @h and @ha on PowerPC64 to report errors
on 32-bit overflow.  The motivation for this change is that on
PowerPC64, most uses of @h and @ha modifiers and their corresponding
relocations are to build up 32-bit offsets.  We'd like to know when
such offsets overflow.  Only rarely do people use @h or @ha with the
high 32-bit modifiers to build a 64-bit constant.  Those uses will now
need to use two new modifiers, @high and @higha, if the constant isn't
known at assembly time.  For now, we won't report overflow at assembly
time..

This also fixes an error when applying some of the HIGHER and HIGHEST
relocations.

include/elf/
	* ppc64.h (R_PPC64_ADDR16_HIGH, R_PPC64_ADDR16_HIGHA,
	R_PPC64_TPREL16_HIGH, R_PPC64_TPREL16_HIGHA,
	R_PPC64_DTPREL16_HIGH, R_PPC64_DTPREL16_HIGHA): New.
	(IS_PPC64_TLS_RELOC): Match new tls relocs.
bfd/
	* reloc.c (BFD_RELOC_PPC64_ADDR16_HIGH, BFD_RELOC_PPC64_ADDR16_HIGHA,
	BFD_RELOC_PPC64_TPREL16_HIGH, BFD_RELOC_PPC64_TPREL16_HIGHA,
	BFD_RELOC_PPC64_DTPREL16_HIGH, BFD_RELOC_PPC64_DTPREL16_HIGHA): New.
	* elf64-ppc.c (ppc64_elf_howto_raw): Add entries for new relocs.
	Make all _HA and _HI relocs report signed overflow.
	(ppc64_elf_reloc_type_lookup): Handle new relocs.
	(must_be_dyn_reloc, ppc64_elf_check_relocs): Likewise.
	(dec_dynrel_count, ppc64_elf_relocate_section): Likewise.
	(ppc64_elf_relocate_section): Don't apply 0x8000 adjust to
	R_PPC64_TPREL16_HIGHER, R_PPC64_TPREL16_HIGHEST,
	R_PPC64_DTPREL16_HIGHER, and R_PPC64_DTPREL16_HIGHEST.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.
gas/
	* config/tc-ppc.c (SEX16): Don't mask.
	(REPORT_OVERFLOW_HI): Define as zero.
	(ppc_elf_suffix): Support @high, @higha, @dtprel@high, @dtprel@higha,
	@tprel@high, and @tprel@higha modifiers.
	(md_assemble): Ignore X_unsigned when applying 16-bit insn fields.
	Add (disabled) code to check @h and @ha reloc overflow for powerpc64.
	Handle new relocs.
	(md_apply_fix): Similarly.
elfcpp/
	* powerpc.h (R_PPC64_ADDR16_HIGH, R_PPC64_ADDR16_HIGHA,
	R_PPC64_TPREL16_HIGH, R_PPC64_TPREL16_HIGHA,
	R_PPC64_DTPREL16_HIGH, R_PPC64_DTPREL16_HIGHA): Define.
gold/
	* powerpc.cc (Target_powerpc::Scan::check_non_pic): Handle new relocs.
	(Target_powerpc::Scan::global, local): Likewise.
	(Target_powerpc::Relocate::relocate): Likewise.  Check for overflow
	on all ppc64 @h and @ha relocs.
2013-10-30 13:33:15 +10:30
Alan Modra
6ce7895693 elfcpp/
* powerpc.h: Add more relocs.
	(R_PPC_REL16*): Rename to R_POWERPC_REL16*.
gold/
	* powerpc.cc: Update for renamed R_PPC_REL16 relocs.
	(Output_data_got_powerpc::do_write): Don't rely on base class lookup
	for replace_constant call.
	(Output_data_plt_powerpc::do_print_to_mapfile): New function.
	(Output_data_glink::do_print_to_mapfile): New function.
	(Target_powerpc::Scan::local): Ignore R_PPC64_TOCSAVE.
	(Target_powerpc::Relocate::relocate): Likewise.
2012-08-14 02:22:32 +00:00
Ian Lance Taylor
6e5710cea9 elfcpp:/
* i386.h (R_386_IRELATIVE): Define.
	* powerpc.h (R_POWERPC_IRELATIVE): Define.
	(R_PPC_RELAX32, R_PPC_RELAX32PC): Don't define.
	(R_PPC_RELAX32_PLT, R_PPC_RELAX32PC_PLT): Don't define.
	* sparc.h (R_SPARC_IRELATIVE): Define.
	* x86_64.h (R_X86_64_IRELATIVE): Define.
	(R_X86_64_GNU_VTINHERIT): Rename from R_386_GNU_VTINHERIT.
	(R_X86_64_GNU_VTENTRY): Rename from R_386_GNU_VTENTRY.
gold:/
	* x86_64.cc (Target_x86_64::Scan::local): Use
	R_X86_64_GNU_VTINHERIT instead of R_386_GNU_VTINHERIT and
	R_X86_64_GNU_VTENTRY instead of R_386_GNU_VTENTRY.
	(Target_x86_64::Scan::global): Likewise.
	(Target_x86_64::Relocate::relocate): Likewise.
	(Target_x86_64::Relocatable_size_for_reloc::get_size_for_reloc):
	Likewise.
2010-08-04 09:53:38 +00:00
David Edelsohn
8da8e50a53 2008-06-12 David S. Miller <davem@davemloft.net>
* powerpc.h: New file.
        * elfcpp.h (SHT_ORDERED): New enum constant.
        (DT_PPC_GOT, DT_PPC64_GLINK, DT_PPC64_OPD, DT_PPC64_OPDSZ): Same.
2008-06-12 16:58:40 +00:00