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160 lines
4.8 KiB
C
160 lines
4.8 KiB
C
/* Definitions of target machine for GNU compiler, for SPARC64, ELF.
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Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
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Contributed by Doug Evans, dje@cygnus.com.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* ??? We're taking the scheme of including another file and then overriding
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the values we don't like a bit too far here. The alternative is to more or
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less duplicate all of svr4.h, sparc/sysv4.h, and sparc/sol2.h here
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(suitably cleaned up). */
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#include "sparc/sol2.h"
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
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/* A 64 bit v9 compiler without stack-bias,
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in a Medium/Anywhere code model environment.
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There is no stack bias as this configuration is intended for
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embedded systems. */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT \
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(MASK_V9 + MASK_PTR64 + MASK_64BIT + MASK_HARD_QUAD \
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+ MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
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#undef SPARC_DEFAULT_CMODEL
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#define SPARC_DEFAULT_CMODEL CM_EMBMEDANY
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/* __svr4__ is used by the C library (FIXME) */
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#undef CPP_SUBTARGET_SPEC
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#define CPP_SUBTARGET_SPEC "-D__svr4__"
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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#undef ASM_SPEC
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#define ASM_SPEC "\
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%{v:-V} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
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%{mlittle-endian:-EL} \
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%(asm_cpu) %(asm_arch) \
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"
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/* This is taken from sol2.h. */
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#undef LINK_SPEC
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#define LINK_SPEC "\
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%{v:-V} \
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%{mlittle-endian:-EL} \
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"
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/* We need something a little simpler for the embedded environment.
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Profiling doesn't really work yet so we just copy the default. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "\
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%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \
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crtbegin.o%s \
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"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "crtend.o%s"
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/* Use the default (for now). */
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#undef LIB_SPEC
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/* V9 chips can handle either endianness. */
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{"big-endian", -MASK_LITTLE_ENDIAN}, \
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{"little-endian", MASK_LITTLE_ENDIAN},
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#undef BYTES_BIG_ENDIAN
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#define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
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#undef WORDS_BIG_ENDIAN
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#define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
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/* ??? This should be 32 bits for v9 but what can we do? */
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "short unsigned int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE 16
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#undef LONG_DOUBLE_TYPE_SIZE
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#define LONG_DOUBLE_TYPE_SIZE 128
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "long long int"
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#undef SIZE_TYPE
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#define SIZE_TYPE "long long unsigned int"
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/* The medium/anywhere code model practically requires us to put jump tables
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in the text section as gcc is unable to distinguish LABEL_REF's of jump
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tables from other label refs (when we need to). */
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/* ??? Revisit this. */
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#undef JUMP_TABLES_IN_TEXT_SECTION
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#define JUMP_TABLES_IN_TEXT_SECTION
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/* System V Release 4 uses DWARF debugging info.
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GDB doesn't support 64 bit stabs yet and the desired debug format is DWARF
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anyway so it is the default. */
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#define DWARF_DEBUGGING_INFO
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#define DWARF2_DEBUGGING_INFO
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#define DBX_DEBUGGING_INFO
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
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/* Stabs doesn't use this, and it confuses a simulator. */
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/* ??? Need to see what DWARF needs, if anything. */
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#undef ASM_IDENTIFY_GCC
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#define ASM_IDENTIFY_GCC(FILE)
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/* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
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??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
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misnamed. These should all refer to explicit sizes (half/word/xword?),
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anything other than short/int/long/etc. */
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#define UNALIGNED_LONGLONG_ASM_OP ".uaxword"
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/* DWARF stuff. */
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#define ASM_OUTPUT_DWARF_ADDR(FILE, LABEL) \
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do { \
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fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
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assemble_name ((FILE), (LABEL)); \
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fprintf ((FILE), "\n"); \
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} while (0)
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#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE, RTX) \
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do { \
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fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
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output_addr_const ((FILE), (RTX)); \
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fputc ('\n', (FILE)); \
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} while (0)
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/* ??? Not sure if this should be 4 or 8 bytes. 4 works for now. */
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#define ASM_OUTPUT_DWARF_REF(FILE, LABEL) \
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do { \
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fprintf ((FILE), "\t%s\t", UNALIGNED_INT_ASM_OP); \
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assemble_name ((FILE), (LABEL)); \
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fprintf ((FILE), "\n"); \
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} while (0)
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