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/* Definitions of target machine for GNU compiler, for SPARC64, ELF.
Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
Contributed by Doug Evans, dje@cygnus.com.
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.
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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This is a v9 only compiler. -mv8 is not expected to work. If you want
a v8/v9 compiler, this isn't the place to do it. */
#define SPARC_V9 1 /* See sparc.h. */
#define SPARC_ARCH64 1
/* ??? We're taking the scheme of including another file and then overriding
the values we don't like a bit too far here. The alternative is to more or
less duplicate all of svr4.h, sparc/sysv4.h, and sparc/sol2.h here
(suitably cleaned up). */
#include "sparc/sol2.h"
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
/* A v9 compiler with stack-bias, 32 bit integers and 64 bit pointers,
in a Medium/Anywhere code model environment. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT \
(MASK_V9 + MASK_ARCH64 + MASK_PTR64 + MASK_HARD_QUAD \
+ MASK_STACK_BIAS + MASK_MEDANY + MASK_APP_REGS + MASK_EPILOGUE + MASK_FPU)
/* __svr4__ is used by the C library */
/* ??? __arch64__ is subject to change. */
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "\
-D__sparc__ -D__sparc_v9__ -D__arch64__ -D__svr4__ \
-Acpu(sparc64) -Amachine(sparc64) \
"
#undef CPP_SPEC
#define CPP_SPEC "\
%{mint64:-D__INT_MAX__=9223372036854775807LL -D__LONG_MAX__=9223372036854775807LL} \
%{mlong64:-D__LONG_MAX__=9223372036854775807LL} \
%{mlittle-endian:-D__LITTLE_ENDIAN__} \
"
#undef MD_EXEC_PREFIX
#undef MD_STARTFILE_PREFIX
#undef ASM_SPEC
#define ASM_SPEC "\
%{v:-V} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
%{mlittle-endian:-EL} \
"
/* This is taken from sol2.h. */
#undef LINK_SPEC
#define LINK_SPEC "\
%{v:-V} \
%{mlittle-endian:-EL} \
"
/* We need something a little simpler for the embedded environment.
Profiling doesn't really work yet so we just copy the default. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "\
%{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \
crtbegin.o%s \
"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC "crtend.o%s"
/* Use the default (for now). */
#undef LIB_SPEC
/* V9 chips can handle either endianness. */
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{"big-endian", -MASK_LITTLE_ENDIAN}, \
{"little-endian", MASK_LITTLE_ENDIAN},
#undef BYTES_BIG_ENDIAN
#define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
#undef WORDS_BIG_ENDIAN
#define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
/* Unfortunately, svr4.h redefines these so we have to restore them to
their original values in sparc.h. */
/* ??? It might be possible to eventually get svr4.h to do the right thing. */
#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "long long int"
#undef SIZE_TYPE
#define SIZE_TYPE "long long unsigned int"
/* ??? This should be 32 bits for v9 but what can we do? */
#undef WCHAR_TYPE
#define WCHAR_TYPE "short unsigned int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 16
/* The medium/anywhere code model practically requires us to put jump tables
in the text section as gcc is unable to distinguish LABEL_REF's of jump
tables from other label refs (when we need to). */
#undef JUMP_TABLES_IN_TEXT_SECTION
#define JUMP_TABLES_IN_TEXT_SECTION
/* System V Release 4 uses DWARF debugging info.
GDB doesn't support 64 bit stabs yet and the desired debug format is DWARF
anyway so it is the default. */
#define DWARF_DEBUGGING_INFO
#define DBX_DEBUGGING_INFO
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
/* Stabs doesn't use this, and it confuses a simulator. */
/* ??? Need to see what DWARF needs, if anything. */
#undef ASM_IDENTIFY_GCC
#define ASM_IDENTIFY_GCC(FILE)
/* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
misnamed. These should all refer to explicit sizes (half/word/xword?),
anything other than short/int/long/etc. */
#define UNALIGNED_LONGLONG_ASM_OP ".uaxword"
/* DWARF stuff. */
#define ASM_OUTPUT_DWARF_ADDR(FILE, LABEL) \
do { \
fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
assemble_name ((FILE), (LABEL)); \
fprintf ((FILE), "\n"); \
} while (0)
#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE, RTX) \
do { \
fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
output_addr_const ((FILE), (RTX)); \
fputc ('\n', (FILE)); \
} while (0)
/* ??? Not sure if this should be 4 or 8 bytes. 4 works for now. */
#define ASM_OUTPUT_DWARF_REF(FILE, LABEL) \
do { \
fprintf ((FILE), "\t%s\t", UNALIGNED_INT_ASM_OP); \
assemble_name ((FILE), (LABEL)); \
fprintf ((FILE), "\n"); \
} while (0)
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