1a66cd67e2
* config/sh/t-elf, config/sh/crt1.asm, config/sh/crti.asm, config/sh/crtn.asm: New files. * config/sh/t-sh (EXTRA_MULTILIB_PARTS): Set. (crt1.o, crti.o, crtn.o): New targets. * configure.in [sh-*-elf*, sh-*-rtemself*] (tmake_file): Added sh/t-elf. * configure: Rebuilt. * config/sh/sh.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP, STARTFILE_SPEC, ENDFILE_SPEC, CRT_CALL_STATIC_FUNCTION): Define. * config/sh/elf.h (INIT_SECTION_ASM_OP, FINI_SECTION_ASM_OP): Undefine for config/elfos.h to redefine. (STARTFILE_SPEC, ENDFILE_SPEC): Redefine after config/elfos.h. * config/sh/sh-protos.h (nonpic_symbol_mentioned_p, legitimize_pic_address, output_pic_addr_const): Declare. * config/sh/sh.h (CONDITIONAL_REGISTER_USAGE): Fix PIC register. (PREFERGOT_BIT, TARGET_PREFERGOT): Likewise. (TARGET_SWITCHES): New switch -mprefergot. (OVERRIDE_OPTIONS): Set flag_no_function_cse unless -mprefergot. (PIC_OFFSET_TABLE_REGNUM): Define. (GOT_SYMBOL_TABLE): Likewise. (LEGITIMIZE_ADDRESS): Use legitimize_pic_address. (ENCODE_SECTION_INFO): Define. (FINALIZE_PIC): New macros. (LEGITIMATE_PIC_OPERAND_P, SYMBOLIC_CONST_P): New macro. (ASM_OUTPUT_INT, ASM_OUTPUT_SHORT): Use output_pic_addr_const. * config/sh/sh.c (print_operand_address): Use output_pic_addr_const. (prepare_move_operands): Call emit_pic_move or emit_pic_const_move if appropriate. (output_far_jump): For PIC, use braf and output long offset. (machine_dependent_reorg): (sh_expand_prologue): Save and initialize the PIC register. (sh_expand_epilogue): Restore it. (initial_elimination_offset): Account for it. (nonpic_symbol_mentioned_p): New function. (legitimize_pic_address): Likewise. (output_pic_addr_const): Likewise. * config/sh/sh.md (calli_pcrel, call_valuei_pcrel): New insns. (call, call_value): Use them. (GOTaddr2picreg, sym_label2reg, symGOT2reg, symGOTOFF2reg, symPLT_label2reg): New expands. * invoke.texi (SH Options): Document -mprefergot. From-SVN: r36111
102 lines
2.9 KiB
NASM
102 lines
2.9 KiB
NASM
/* Copyright (C) 2000 Free Software Foundation, Inc.
|
|
This file was adapted from glibc sources.
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option) any
|
|
later version.
|
|
|
|
In addition to the permissions in the GNU General Public License, the
|
|
Free Software Foundation gives you unlimited permission to link the
|
|
compiled version of this file into combinations with other programs,
|
|
and to distribute those combinations without any restriction coming
|
|
from the use of this file. (The General Public License restrictions
|
|
do apply in other respects; for example, they cover modification of
|
|
the file, and distribution when not linked into a combine
|
|
executable.)
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* The code in sections .init and .fini is supposed to be a single
|
|
regular function. The function in .init is called directly from
|
|
start in crt1.asm. The function in .fini is atexit()ed in crt1.asm
|
|
too.
|
|
|
|
crti.asm contributes the prologue of a function to these sections,
|
|
and crtn.asm comes up the epilogue. STARTFILE_SPEC should list
|
|
crti.o before any other object files that might add code to .init
|
|
or .fini sections, and ENDFILE_SPEC should list crtn.o after any
|
|
such object files. */
|
|
|
|
.section .init
|
|
/* The alignment below can't be smaller, otherwide the mova below
|
|
breaks. Yes, we might align just the label, but then we'd be
|
|
exchanging an alignment here for one there, since the code fragment
|
|
below ensures 4-byte alignment on __ELF__. */
|
|
#ifdef __ELF__
|
|
.p2align 2
|
|
#else
|
|
.p2align 1
|
|
#endif
|
|
.global _init
|
|
_init:
|
|
#ifdef __ELF__
|
|
mov.l r12,@-r15
|
|
mova 0f,r0
|
|
mov.l 0f,r12
|
|
#endif
|
|
mov.l r14,@-r15
|
|
#ifdef __ELF__
|
|
add r0,r12
|
|
#endif
|
|
sts.l pr,@-r15
|
|
#ifdef __ELF__
|
|
bra 1f
|
|
#endif
|
|
mov r15,r14
|
|
#ifdef __ELF__
|
|
0: .long _GLOBAL_OFFSET_TABLE_
|
|
1:
|
|
#endif
|
|
|
|
.section .fini
|
|
/* The alignment below can't be smaller, otherwide the mova below
|
|
breaks. Yes, we might align just the label, but then we'd be
|
|
exchanging an alignment here for one there, since the code fragment
|
|
below ensures 4-byte alignment on __ELF__. */
|
|
#ifdef __ELF__
|
|
.p2align 2
|
|
#else
|
|
.p2align 1
|
|
#endif
|
|
.global _fini
|
|
_fini:
|
|
#ifdef __ELF__
|
|
mov.l r12,@-r15
|
|
mova 0f,r0
|
|
mov.l 0f,r12
|
|
#endif
|
|
mov.l r14,@-r15
|
|
#ifdef __ELF__
|
|
add r0,r12
|
|
#endif
|
|
sts.l pr,@-r15
|
|
#ifdef __ELF__
|
|
bra 1f
|
|
#endif
|
|
mov r15,r14
|
|
#ifdef __ELF__
|
|
0: .long _GLOBAL_OFFSET_TABLE_
|
|
1:
|
|
#endif
|