On Wed, Mar 19, 2014 at 3:31 PM, Bill Schmidt
<wschm...@linux.vnet.ibm.com> wrote:
> Hi,
>
> This patch (diff-abi-elfv2) backports the fundamental changes for the
> ELFv2 ABI for powerpc64le. Copying Richard and Jakub for the libgcc,
> libitm, and libstdc++ bits.
>
> Thanks,
> Bill
>
>
> [gcc]
>
> 2014-03-29 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> Backport from mainline r204842:
>
> 2013-11-15 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * doc/invoke.texi (-mabi=elfv1, -mabi=elfv2): Document.
>
> Backport from mainline r204809:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/sysv4le.h (LINUX64_DEFAULT_ABI_ELFv2): Define.
>
> Backport from mainline r204808:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/rs6000.h (RS6000_SAVE_AREA): Handle ABI_ELFv2.
> (RS6000_SAVE_TOC): Remove.
> (RS6000_TOC_SAVE_SLOT): New macro.
> * config/rs6000/rs6000.c (rs6000_parm_offset): New function.
> (rs6000_parm_start): Use it.
> (rs6000_function_arg_advance_1): Likewise.
> (rs6000_emit_prologue): Use RS6000_TOC_SAVE_SLOT.
> (rs6000_emit_epilogue): Likewise.
> (rs6000_call_aix): Likewise.
> (rs6000_output_function_prologue): Do not save/restore r11
> around calling _mcount for ABI_ELFv2.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/rs6000-protos.h (rs6000_reg_parm_stack_space):
> Add prototype.
> * config/rs6000/rs6000.h (RS6000_REG_SAVE): Remove.
> (REG_PARM_STACK_SPACE): Call rs6000_reg_parm_stack_space.
> * config/rs6000/rs6000.c (rs6000_parm_needs_stack): New function.
> (rs6000_function_parms_need_stack): Likewise.
> (rs6000_reg_parm_stack_space): Likewise.
> (rs6000_function_arg): Do not replace BLKmode by Pmode when
> returning a register argument.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Michael Gschwind <m...@us.ibm.com>
>
> * config/rs6000/rs6000.h (FP_ARG_MAX_RETURN): New macro.
> (ALTIVEC_ARG_MAX_RETURN): Likewise.
> (FUNCTION_VALUE_REGNO_P): Use them.
> * config/rs6000/rs6000.c (TARGET_RETURN_IN_MSB): Define.
> (rs6000_return_in_msb): New function.
> (rs6000_return_in_memory): Handle ELFv2 homogeneous aggregates.
> Handle aggregates of up to 16 bytes for ELFv2.
> (rs6000_function_value): Handle ELFv2 homogeneous aggregates.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Michael Gschwind <m...@us.ibm.com>
>
> * config/rs6000/rs6000.h (AGGR_ARG_NUM_REG): Define.
> * config/rs6000/rs6000.c (rs6000_aggregate_candidate): New function.
> (rs6000_discover_homogeneous_aggregate): Likewise.
> (rs6000_function_arg_boundary): Handle homogeneous aggregates.
> (rs6000_function_arg_advance_1): Likewise.
> (rs6000_function_arg): Likewise.
> (rs6000_arg_partial_bytes): Likewise.
> (rs6000_psave_function_arg): Handle BLKmode arguments.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Michael Gschwind <m...@us.ibm.com>
>
> * config/rs6000/rs6000.h (AGGR_ARG_NUM_REG): Define.
> * config/rs6000/rs6000.c (rs6000_aggregate_candidate): New function.
> (rs6000_discover_homogeneous_aggregate): Likewise.
> (rs6000_function_arg_boundary): Handle homogeneous aggregates.
> (rs6000_function_arg_advance_1): Likewise.
> (rs6000_function_arg): Likewise.
> (rs6000_arg_partial_bytes): Likewise.
> (rs6000_psave_function_arg): Handle BLKmode arguments.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (machine_function): New member
> r2_setup_needed.
> (rs6000_emit_prologue): Set r2_setup_needed if necessary.
> (rs6000_output_mi_thunk): Set r2_setup_needed.
> (rs6000_output_function_prologue): Output global entry point
> prologue and local entry point marker if needed for ABI_ELFv2.
> Output -mprofile-kernel code here.
> (output_function_profiler): Do not output -mprofile-kernel
> code here; moved to rs6000_output_function_prologue.
> (rs6000_file_start): Output ".abiversion 2" for ABI_ELFv2.
>
> (rs6000_emit_move): Do not handle dot symbols for ABI_ELFv2.
> (rs6000_output_function_entry): Likewise.
> (rs6000_assemble_integer): Likewise.
> (rs6000_elf_encode_section_info): Likewise.
> (rs6000_elf_declare_function_name): Do not create dot symbols
> or .opd section for ABI_ELFv2.
>
> (rs6000_trampoline_size): Update for ABI_ELFv2 trampolines.
> (rs6000_trampoline_init): Likewise.
> (rs6000_elf_file_end): Call file_end_indicate_exec_stack
> for ABI_ELFv2.
>
> (rs6000_call_aix): Handle ELFv2 indirect calls. Do not check
> for function descriptors in ABI_ELFv2.
>
> * config/rs6000/rs6000.md ("*call_indirect_aix<mode>"): Support
> on ABI_AIX only, not ABI_ELFv2.
> ("*call_value_indirect_aix<mode>"): Likewise.
> ("*call_indirect_elfv2<mode>"): New pattern.
> ("*call_value_indirect_elfv2<mode>"): Likewise.
>
> * config/rs6000/predicates.md ("symbol_ref_operand"): Do not
> check for function descriptors in ABI_ELFv2.
> ("current_file_function_operand"): Likewise.
>
> * config/rs6000/ppc-asm.h [__powerpc64__ && _CALL_ELF == 2]:
> (toc): Undefine.
> (FUNC_NAME): Define ELFv2 variant.
> (JUMP_TARGET): Likewise.
> (FUNC_START): Likewise.
> (HIDDEN_FUNC): Likewise.
> (FUNC_END): Likeiwse.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config.gcc [powerpc*-*-* | rs6000-*-*]: Support --with-abi=elfv1
> and --with-abi=elfv2.
> * config/rs6000/option-defaults.h (OPTION_DEFAULT_SPECS): Add "abi".
> * config/rs6000/rs6000.opt (mabi=elfv1): New option.
> (mabi=elfv2): Likewise.
> * config/rs6000/rs6000-opts.h (enum rs6000_abi): Add ABI_ELFv2.
> * config/rs6000/linux64.h (DEFAULT_ABI): Do not hard-code to AIX_ABI
> if !RS6000_BI_ARCH.
> (ELFv2_ABI_CHECK): New macro.
> (SUBSUBTARGET_OVERRIDE_OPTIONS): Use it to decide whether to set
> rs6000_current_abi to ABI_AIX or ABI_ELFv2.
> (GLIBC_DYNAMIC_LINKER64): Support ELFv2 ld.so version.
> * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Predefine
> _CALL_ELF and __STRUCT_PARM_ALIGN__ if appropriate.
>
> * config/rs6000/rs6000.c (rs6000_debug_reg_global): Handle ABI_ELFv2.
> (debug_stack_info): Likewise.
> (rs6000_file_start): Treat ABI_ELFv2 the same as ABI_AIX.
> (rs6000_legitimize_tls_address): Likewise.
> (rs6000_conditional_register_usage): Likewise.
> (rs6000_emit_move): Likewise.
> (init_cumulative_args): Likewise.
> (rs6000_function_arg_advance_1): Likewise.
> (rs6000_function_arg): Likewise.
> (rs6000_arg_partial_bytes): Likewise.
> (rs6000_output_function_entry): Likewise.
> (rs6000_assemble_integer): Likewise.
> (rs6000_savres_strategy): Likewise.
> (rs6000_stack_info): Likewise.
> (rs6000_function_ok_for_sibcall): Likewise.
> (rs6000_emit_load_toc_table): Likewise.
> (rs6000_savres_routine_name): Likewise.
> (ptr_regno_for_savres): Likewise.
> (rs6000_emit_prologue): Likewise.
> (rs6000_emit_epilogue): Likewise.
> (rs6000_output_function_epilogue): Likewise.
> (output_profile_hook): Likewise.
> (output_function_profiler): Likewise.
> (rs6000_trampoline_size): Likewise.
> (rs6000_trampoline_init): Likewise.
> (rs6000_elf_output_toc_section_asm_op): Likewise.
> (rs6000_elf_encode_section_info): Likewise.
> (rs6000_elf_reloc_rw_mask): Likewise.
> (rs6000_elf_declare_function_name): Likewise.
> (rs6000_function_arg_boundary): Treat ABI_ELFv2 the same as ABI_AIX,
> except that rs6000_compat_align_parm is always assumed false.
> (rs6000_gimplify_va_arg): Likewise.
> (rs6000_call_aix): Update comment.
> (rs6000_sibcall_aix): Likewise.
> * config/rs6000/rs6000.md ("tls_gd_aix<TLSmode:tls_abi_suffix>"):
> Treat ABI_ELFv2 the same as ABI_AIX.
> ("*tls_gd_call_aix<TLSmode:tls_abi_suffix>"): Likewise.
> ("tls_ld_aix<TLSmode:tls_abi_suffix>"): Likewise.
> ("*tls_ld_call_aix<TLSmode:tls_abi_suffix>"): Likewise.
> ("load_toc_aix_si"): Likewise.
> ("load_toc_aix_di"): Likewise.
> ("call"): Likewise.
> ("call_value"): Likewise.
> ("*call_local_aix<mode>"): Likewise.
> ("*call_value_local_aix<mode>"): Likewise.
> ("*call_nonlocal_aix<mode>"): Likewise.
> ("*call_value_nonlocal_aix<mode>"): Likewise.
> ("*call_indirect_aix<mode>"): Likewise.
> ("*call_value_indirect_aix<mode>"): Likewise.
> ("sibcall"): Likewise.
> ("sibcall_value"): Likewise.
> ("*sibcall_aix<mode>"): Likewise.
> ("*sibcall_value_aix<mode>"): Likewise.
> * config/rs6000/predicates.md ("symbol_ref_operand"): Likewise.
> ("current_file_function_operand"): Likewise.
>
> Backport from mainline r204807:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_arg_partial_bytes): Simplify logic
> by making use of the fact that for vector / floating point arguments
> passed both in VRs/FPRs and in the fixed parameter area, the partial
> bytes mechanism is in fact not used.
>
> Backport from mainline r204806:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_psave_function_arg): New function.
> (rs6000_finish_function_arg): Likewise.
> (rs6000_function_arg): Use rs6000_psave_function_arg and
> rs6000_finish_function_arg to handle both vector and floating
> point arguments that are also passed in GPRs / the stack.
>
> Backport from mainline r204805:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (USE_FP_FOR_ARG_P): Remove TYPE argument.
> (USE_ALTIVEC_FOR_ARG_P): Likewise.
> (rs6000_darwin64_record_arg_advance_recurse): Update uses.
> (rs6000_function_arg_advance_1):Likewise.
> (rs6000_darwin64_record_arg_recurse): Likewise.
> (rs6000_function_arg): Likewise.
> (rs6000_arg_partial_bytes): Likewise.
>
> Backport from mainline r204804:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_option_override_internal): Replace
> "DEFAULT_ABI != ABI_AIX" test by testing for ABI_V4 or ABI_DARWIN.
> (rs6000_savres_strategy): Likewise.
> (rs6000_return_addr): Likewise.
> (rs6000_emit_load_toc_table): Replace "DEFAULT_ABI != ABI_AIX" by
> testing for ABI_V4 (since ABI_DARWIN is impossible here).
> (rs6000_emit_prologue): Likewise.
> (legitimate_lo_sum_address_p): Simplify DEFAULT_ABI test.
> (rs6000_elf_declare_function_name): Remove duplicated test.
> * config/rs6000/rs6000.md ("load_toc_v4_PIC_1"): Explicitly test
> for ABI_V4 (instead of "DEFAULT_ABI != ABI_AIX" test).
> ("load_toc_v4_PIC_1_normal"): Likewise.
> ("load_toc_v4_PIC_1_476"): Likewise.
> ("load_toc_v4_PIC_1b"): Likewise.
> ("load_toc_v4_PIC_1b_normal"): Likewise.
> ("load_toc_v4_PIC_1b_476"): Likewise.
> ("load_toc_v4_PIC_2"): Likewise.
> ("load_toc_v4_PIC_3b"): Likewise.
> ("load_toc_v4_PIC_3c"): Likewise.
> * config/rs6000/rs6000.h (RS6000_REG_SAVE): Simplify DEFAULT_ABI test.
> (RS6000_SAVE_AREA): Likewise.
> (FP_ARG_MAX_REG): Likewise.
> (RETURN_ADDRESS_OFFSET): Likewise.
> * config/rs6000/sysv.h (TARGET_TOC): Test for ABI_V4 instead
> of ABI_AIX.
> (SUBTARGET_OVERRIDE_OPTIONS): Likewise.
> (MINIMAL_TOC_SECTION_ASM_OP): Likewise.
>
> Backport from mainline r204803:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_call_indirect_aix): Rename to ...
> (rs6000_call_aix): ... this. Handle both direct and indirect calls.
> Create call insn directly instead of via various gen_... routines.
> Mention special registers used by the call in
> CALL_INSN_FUNCTION_USAGE.
> (rs6000_sibcall_aix): New function.
> * config/rs6000/rs6000.md (TOC_SAVE_OFFSET_32BIT): Remove.
> (TOC_SAVE_OFFSET_64BIT): Likewise.
> (AIX_FUNC_DESC_TOC_32BIT): Likewise.
> (AIX_FUNC_DESC_TOC_64BIT): Likewise.
> (AIX_FUNC_DESC_SC_32BIT): Likewise.
> (AIX_FUNC_DESC_SC_64BIT): Likewise.
> ("call" expander): Call rs6000_call_aix.
> ("call_value" expander): Likewise.
> ("call_indirect_aix<ptrsize>"): Replace this pattern ...
> ("call_indirect_aix<ptrsize>_nor11"): ... and this pattern ...
> ("*call_indirect_aix<mode>"): ... by this insn pattern.
> ("call_value_indirect_aix<ptrsize>"): Replace this pattern ...
> ("call_value_indirect_aix<ptrsize>_nor11"): ... and this pattern ...
> ("*call_value_indirect_aix<mode>"): ... by this insn pattern.
> ("*call_nonlocal_aix32", "*call_nonlocal_aix64"): Replace by ...
> ("*call_nonlocal_aix<mode>"): ... this pattern.
> ("*call_value_nonlocal_aix32", "*call_value_nonlocal_aix64"): Replace
> ("*call_value_nonlocal_aix<mode>"): ... by this pattern.
> ("*call_local_aix<mode>"): New insn pattern.
> ("*call_value_local_aix<mode>"): Likewise.
> ("sibcall" expander): Call rs6000_sibcall_aix.
> ("sibcall_value" expander): Likewise. Move earlier in file.
> ("*sibcall_nonlocal_aix<mode>"): Replace by ...
> ("*sibcall_aix<mode>"): ... this pattern.
> ("*sibcall_value_nonlocal_aix<mode>"): Replace by ...
> ("*sibcall_value_aix<mode>"): ... this pattern.
> * config/rs6000/rs6000-protos.h (rs6000_call_indirect_aix): Remove.
> (rs6000_call_aix): Add prototype.
> (rs6000_sibcall_aix): Likewise.
>
> Backport from mainline r204799:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/rs6000/rs6000.c (rs6000_emit_prologue): Do not place a
> RTX_FRAME_RELATED_P marker on the UNSPEC_MOVESI_FROM_CR insn.
> Instead, add USEs of all modified call-saved CR fields to the
> insn storing the result to the stack slot, and provide an
> appropriate REG_FRAME_RELATED_EXPR for that insn.
> * config/rs6000/rs6000.md ("*crsave"): New insn pattern.
> * config/rs6000/predicates.md ("crsave_operation"): New predicate.
>
> [gcc/testsuite]
>
> 2014-03-29 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> Backport from mainline r204808:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * gcc.target/powerpc/ppc64-abi-1.c (stack_frame_t): Remove
> compiler and linker field if _CALL_ELF == 2.
> * gcc.target/powerpc/ppc64-abi-2.c (stack_frame_t): Likewise.
> * gcc.target/powerpc/ppc64-abi-dfp-1.c (stack_frame_t): Likewise.
> * gcc.dg/stack-usage-1.c (SIZE): Update value for _CALL_ELF == 2.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * gcc.target/powerpc/ppc64-abi-dfp-1.c (FUNC_START): New macro.
> (WRAPPER): Use it.
> * gcc.target/powerpc/no-r11-1.c: Skip on powerpc_elfv2.
> * gcc.target/powerpc/no-r11-2.c: Skip on powerpc_elfv2.
> * gcc.target/powerpc/no-r11-3.c: Skip on powerpc_elfv2.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * lib/target-supports.exp (check_effective_target_powerpc_elfv2):
> New function.
> * gcc.target/powerpc/pr57949-1.c: Disable for powerpc_elfv2.
> * gcc.target/powerpc/pr57949-2.c: Likewise.
>
> Backport from mainline r204799:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * g++.dg/eh/ppc64-sighandle-cr.C: New test.
>
> [libgcc]
>
> 2014-03-29 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> Backport from mainline r204808:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/linux-unwind.h (TOC_SAVE_SLOT): Define.
> (frob_update_context): Use it.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/tramp.S [__powerpc64__ && _CALL_ELF == 2]:
> (trampoline_initial): Provide ELFv2 variant.
> (__trampoline_setup): Likewise.
>
> * config/rs6000/linux-unwind.h (frob_update_context): Do not
> check for AIX indirect function call sequence if _CALL_ELF == 2.
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/linux-unwind.h (get_regs): Do not support
> old kernel versions if _CALL_ELF == 2.
> (frob_update_context): Do not support PLT stub variants only
> generated by old linkers if _CALL_ELF == 2.
>
> Backport from mainline r204800:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
> Alan Modra <amo...@gmail.com>
>
> * config/rs6000/linux-unwind.h (ppc_fallback_frame_state): Correct
> location of CR save area for 64-bit little-endian systems.
>
> [libitm]
>
> 2014-03-29 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> Backport from mainline r204808:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * config/powerpc/sjlj.S [__powerpc64__ && _CALL_ELF == 2]:
> (FUNC): Define ELFv2 variant.
> (END): Likewise.
> (HIDDEN): Likewise.
> (CALL): Likewise.
> (BASE): Likewise.
> (LR_SAVE): Likewise.
>
> [libstdc++]
>
> 2014-03-29 Bill Schmidt <wschm...@linux.vnet.ibm.com>
>
> Backport from mainline r204808:
>
> 2013-11-14 Ulrich Weigand <ulrich.weig...@de.ibm.com>
>
> * scripts/extract_symvers.in: Ignore <localentry: > fields
> in readelf --symbols output.
Okay.
Thanks, David
