b11b09048d
gcc/ * doc/invoke.texi (SPARC options): Add -mflat. * config/sparc/sparc.opt: Likewise. * config/sparc/sparc-protos.h (sparc_expand_epilogue): Add parameter. (sparc_flat_expand_prologue): Declare. (sparc_flat_expand_epilogue): Likewise. * config/sparc/sparc.h (CPP_CPU_SPEC): Do not handle -msoft-float. (CPP_ENDIAN_SPEC): Replace with... (CPP_OTHER_SPEC): ...this. Also handle -mflat and -msoft-float. (CPP_SPEC): Adjust to above change. (EXTRA_SPECS): Likewise. (SPARC_INCOMING_INT_ARG_FIRST): Add TARGET_FLAT handling. (INCOMING_REGNO): Likewise. (OUTGOING_REGNO): Likewise. (LOCAL_REGNO): Likewise. (SETUP_FRAME_ADDRESSES): Likewise. (FIXED_REGISTERS): Set 0 for %fp. (CALL_USED_REGISTERS): Likewise. (INITIAL_ELIMINATION_OFFSET): Pass current_function_is_leaf. (EXIT_IGNORE_STACK): Define to 1 unconditionally. (RETURN_ADDR_REGNUM): Define. (RETURN_ADDR_RTX): Use it. (INCOMING_RETURN_ADDR_REGNUM): Define. (INCOMING_RETURN_ADDR_RTX): Use it. (DWARF_FRAME_RETURN_COLUMN): Likewise. (EH_RETURN_REGNUM): Define. (EH_RETURN_STACKADJ_RTX): Use it. (EH_RETURN_HANDLER_RTX): Delete. (EPILOGUE_USES): Use them and add TARGET_FLAT handling. * config/sparc/sparc.c (apparent_fsize, actual_fsize, num_gfregs): Delete. (struct machine_function): Add frame_size, apparent_frame_size, frame_base_reg, frame_base_offset, n_global_fp_regs and save_local_in_regs_p fields. (sparc_frame_size, sparc_apparent_frame_size, sparc_frame_base_reg, sparc_frame_base_offset, sparc_n_global_fp_regs, sparc_save_local_in_regs_p): New macros. (sparc_option_override): Error out if -fcall-saved-REG is specified for Out registers. (eligible_for_restore_insn): Fix formatting. (eligible_for_return_delay): Likewise. Add TARGET_FLAT handling. (eligible_for_sibcall_delay): Likewise. (RTX_OK_FOR_OFFSET_P, RTX_OK_FOR_OLO10_P): Add MODE parameter. (sparc_legitimate_address_p): Adjust to above change. (save_global_or_fp_reg_p): New predicate. (return_addr_reg_needed_p): Likewise. (save_local_or_in_reg_p): Likewise. (sparc_compute_frame_size): Use them. Add TARGET_FLAT handling. (SORR_SAVE, SORR_RESTORE): Delete. (sorr_pred_t): New typedef. (sorr_act_t): New enum. (save_or_restore_regs): Rename to... (emit_save_or_restore_regs): ...this. Change type of LOW and HIGH parameters, remove ACTION parameter, add LEAF_FUNCTION_P, SAVE_P, ACTION_TRUE and ACTION_FALSE parameters. Implement more general mechanism. Add CFI information for double-word saves in 32-bit mode. (emit_adjust_base_to_offset): New function extracted from... (emit_save_or_restore_regs): ...this. Rename the rest to... (emit_save_or_restore_regs_global_fp_regs): ...this. (emit_save_or_restore_regs_local_in_regs): New function. (gen_create_flat_frame_[123]): New functions. (sparc_expand_prologue): Use SIZE local variable. Adjust. (sparc_flat_expand_prologue): New function. (sparc_asm_function_prologue): Add TARGET_FLAT handling. (sparc_expand_epilogue): Use SIZE local variable. Adjust. (sparc_flat_expand_epilogue): New function. (sparc_can_use_return_insn_p): Add TARGET_FLAT handling. (output_return): Likewise. (output_sibcall): Likewise. (sparc_output_mi_thunk): Likewise. (sparc_frame_pointer_required): Likewise. (sparc_conditional_register_usage): If TARGET_FLAT, disable the leaf function optimization. * config/sparc/sparc.md (flat): New attribute. (prologue): Add TARGET_FLAT handling. (save_register_window): Disable if TARGET_FLAT. (create_flat_frame_[123]): New patterns. (epilogue): Add TARGET_FLAT handling. (sibcall_epilogue): Likewise. (eh_return): New expander. (eh_return_internal): New insn and splitter. (return_internal): Add TARGET_FLAT handling. (untyped_return): Remove bogus test and use RETURN_ADDR_REGNUM. (save_stack_nonlocal): Use RETURN_ADDR_REGNUM. (nonlocal_goto): Add TARGET_FLAT handling. * config/sparc/t-elf: Add -mflat multilib. * config/sparc/t-leon: Likewise. libgcc/ * config/sparc/linux-unwind.h (STACK_BIAS): Define. (sparc64_fallback_frame_state): Use it. (sparc64_frob_update_context): Further adjust context. * config/sparc/sol2-unwind.h (sparc64_frob_update_context): Likewise. * config/sparc/sol2-ci.S: Add TARGET_FLAT handling. * config/sparc/sol2-cn.S: Likewise. Co-Authored-By: Laurent Rougé <laurent.rouge@menta.fr> From-SVN: r174897
64 lines
1.7 KiB
ArmAsm
64 lines
1.7 KiB
ArmAsm
! crtn.s for solaris 2.0.
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! Copyright (C) 1992, 2008, 2009, 2011 Free Software Foundation, Inc.
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! Written By David Vinayak Henkel-Wallace, June 1992
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!
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! This file is free software; you can redistribute it and/or modify it
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! under the terms of the GNU General Public License as published by the
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! Free Software Foundation; either version 3, or (at your option) any
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! later version.
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!
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! This file is distributed in the hope that it will be useful, but
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! WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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! General Public License for more details.
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!
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! Under Section 7 of GPL version 3, you are granted additional
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! permissions described in the GCC Runtime Library Exception, version
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! 3.1, as published by the Free Software Foundation.
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!
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! You should have received a copy of the GNU General Public License and
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! a copy of the GCC Runtime Library Exception along with this program;
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! see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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! <http://www.gnu.org/licenses/>.
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! This file just makes sure that the .fini and .init sections do in
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! fact return. Users may put any desired instructions in those sections.
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! This file is the last thing linked into any executable.
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.section ".init"
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.align 4
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#ifdef _FLAT
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mov %i7, %o7
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#ifdef __sparcv9
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ldx [%sp+2343], %i7
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sub %sp, -176, %sp
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#else
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ld [%sp+156], %i7
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sub %sp, -96, %sp
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#endif
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#else
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restore
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#endif
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jmp %o7+8
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nop
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.section ".fini"
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.align 4
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#ifdef _FLAT
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mov %i7, %o7
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#ifdef __sparcv9
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ldx [%sp+2343], %i7
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sub %sp, -176, %sp
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#else
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ld [%sp+156], %i7
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sub %sp, -96, %sp
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#endif
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#else
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restore
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#endif
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jmp %o7+8
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nop
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! Th-th-th-that is all folks!
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