home *** CD-ROM | disk | FTP | other *** search
- /* Definitions of target machine for GNU compiler,
- for Sun SPARC-V9 on a hypothetical elf format machine.
- Copyright (C) 1994, 1995 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. */
- /* ??? Until real v9 machines exist, all of this is subject to change. */
- /* ??? This file should really be called sp64-sol2.h or some such but that
- would be a bit misleading since no such machines exist yet. The current
- name is also misleading since the term "elf" is more properly applied to
- embedded configurations. */
-
- #define SPARCV9 /* See sparc.h. */
-
- /* ??? 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). Until real sparc64 machines exist, it's not clear
- which is better. */
-
- #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_STACK_BIAS + MASK_MEDANY + MASK_PTR64 + MASK_HARD_QUAD + MASK_EPILOGUE + MASK_FPU)
-
- /* __svr4__ is used by the C library */
- #undef CPP_PREDEFINES
- #define CPP_PREDEFINES "\
- -D__sparc__ -D__sparc_v9__ -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} \
- "
-
- #undef MD_EXEC_PREFIX
- #undef MD_STARTFILE_PREFIX
-
- #undef ASM_SPEC
- #define ASM_SPEC "\
- %{V} %{v:%{!V:-V}} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
- "
-
- /* This is taken from sol2.h. */
- #undef LINK_SPEC
- #define LINK_SPEC "\
- %{V} %{v:%{!V:-V}} \
- "
-
- /* 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 "%{!nostartfiles:crtend.o%s}"
-
- /* Use the default (for now). */
- #undef LIB_SPEC
-
- /* 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
-
- /* ??? Disabled for v9 as the current implementation of the Medium/Anywhere
- code model needs this in the data segment (still true?). Let's hope the
- assembler is fixed. */
- #undef 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
-
- /* 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)
-