| /* 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) |