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1.1 root 1: /* Definitions of target machine for GNU compiler,
2: for Sun SPARC-V9 on a hypothetical elf format machine.
1.1.1.2 ! root 3: Copyright (C) 1994, 1995 Free Software Foundation, Inc.
1.1 root 4: Contributed by Doug Evans, [email protected].
5:
6: This file is part of GNU CC.
7:
8: GNU CC is free software; you can redistribute it and/or modify
9: it under the terms of the GNU General Public License as published by
10: the Free Software Foundation; either version 2, or (at your option)
11: any later version.
12:
13: GNU CC is distributed in the hope that it will be useful,
14: but WITHOUT ANY WARRANTY; without even the implied warranty of
15: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16: GNU General Public License for more details.
17:
18: You should have received a copy of the GNU General Public License
19: along with GNU CC; see the file COPYING. If not, write to
1.1.1.2 ! root 20: the Free Software Foundation, 59 Temple Place - Suite 330,
! 21: Boston, MA 02111-1307, USA. */
1.1 root 22:
23: /* This is a v9 only compiler. -mv8 is not expected to work. If you want
24: a v8/v9 compiler, this isn't the place to do it. */
25: /* ??? Until real v9 machines exist, all of this is subject to change. */
26: /* ??? This file should really be called sp64-sol2.h or some such but that
27: would be a bit misleading since no such machines exist yet. The current
28: name is also misleading since the term "elf" is more properly applied to
29: embedded configurations. */
30:
31: #define SPARCV9 /* See sparc.h. */
32:
33: /* ??? We're taking the scheme of including another file and then overriding
34: the values we don't like a bit too far here. The alternative is to more or
35: less duplicate all of svr4.h, sparc/sysv4.h, and sparc/sol2.h here
36: (suitably cleaned up). Until real sparc64 machines exist, it's not clear
37: which is better. */
38:
39: #include "sparc/sol2.h"
40:
1.1.1.2 ! root 41: #undef TARGET_VERSION
! 42: #define TARGET_VERSION fprintf (stderr, " (sparc64-elf)")
! 43:
1.1 root 44: /* A v9 compiler with stack-bias, 32 bit integers and 64 bit pointers,
45: in a Medium/Anywhere code model environment. */
46:
47: #undef TARGET_DEFAULT
48: #define TARGET_DEFAULT \
49: (MASK_V9 + MASK_STACK_BIAS + MASK_MEDANY + MASK_PTR64 + MASK_HARD_QUAD + MASK_EPILOGUE + MASK_FPU)
50:
1.1.1.2 ! root 51: /* __svr4__ is used by the C library */
1.1 root 52: #undef CPP_PREDEFINES
1.1.1.2 ! root 53: #define CPP_PREDEFINES "\
! 54: -D__sparc__ -D__sparc_v9__ -D__svr4__ \
! 55: -Acpu(sparc64) -Amachine(sparc64) \
! 56: "
1.1 root 57:
58: #undef CPP_SPEC
59: #define CPP_SPEC "\
60: %{mint64:-D__INT_MAX__=9223372036854775807LL -D__LONG_MAX__=9223372036854775807LL} \
61: %{mlong64:-D__LONG_MAX__=9223372036854775807LL} \
62: "
63:
64: #undef MD_EXEC_PREFIX
65: #undef MD_STARTFILE_PREFIX
66:
1.1.1.2 ! root 67: #undef ASM_SPEC
! 68: #define ASM_SPEC "\
! 69: %{V} %{v:%{!V:-V}} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
! 70: "
1.1 root 71:
72: /* This is taken from sol2.h. */
73: #undef LINK_SPEC
74: #define LINK_SPEC "\
1.1.1.2 ! root 75: %{V} %{v:%{!V:-V}} \
1.1 root 76: "
77:
1.1.1.2 ! root 78: /* We need something a little simpler for the embedded environment.
! 79: Profiling doesn't really work yet so we just copy the default. */
! 80: #undef STARTFILE_SPEC
! 81: #define STARTFILE_SPEC "\
! 82: %{!shared:%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}} \
! 83: crtbegin.o%s \
! 84: "
! 85:
! 86: #undef ENDFILE_SPEC
! 87: #define ENDFILE_SPEC "%{!nostartfiles:crtend.o%s}"
! 88:
! 89: /* Use the default (for now). */
! 90: #undef LIB_SPEC
! 91:
1.1 root 92: /* Unfortunately, svr4.h redefines these so we have to restore them to
93: their original values in sparc.h. */
94: /* ??? It might be possible to eventually get svr4.h to do the right thing. */
95:
96: #undef PTRDIFF_TYPE
97: #define PTRDIFF_TYPE "long long int"
98:
99: #undef SIZE_TYPE
100: #define SIZE_TYPE "long long unsigned int"
101:
102: /* ??? This should be 32 bits for v9 but what can we do? */
103: #undef WCHAR_TYPE
104: #define WCHAR_TYPE "short unsigned int"
105:
106: #undef WCHAR_TYPE_SIZE
107: #define WCHAR_TYPE_SIZE 16
108:
109: /* ??? Disabled for v9 as the current implementation of the Medium/Anywhere
110: code model needs this in the data segment (still true?). Let's hope the
111: assembler is fixed. */
112: #undef JUMP_TABLES_IN_TEXT_SECTION
113:
114: /* System V Release 4 uses DWARF debugging info.
115: GDB doesn't support 64 bit stabs yet and the desired debug format is DWARF
116: anyway so it is the default. */
117:
118: #define DWARF_DEBUGGING_INFO
119: #define DBX_DEBUGGING_INFO
120:
121: #undef PREFERRED_DEBUGGING_TYPE
122: #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
123:
124: /* Define the names of various pseudo-ops used by the Sparc/svr4 assembler.
125: ??? If ints are 64 bits then UNALIGNED_INT_ASM_OP (defined elsewhere) is
126: misnamed. These should all refer to explicit sizes (half/word/xword?),
127: anything other than short/int/long/etc. */
128:
129: #define UNALIGNED_LONGLONG_ASM_OP ".uaxword"
130:
131: /* DWARF stuff. */
132:
1.1.1.2 ! root 133: #define ASM_OUTPUT_DWARF_ADDR(FILE, LABEL) \
! 134: do { \
! 135: fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
! 136: assemble_name ((FILE), (LABEL)); \
! 137: fprintf ((FILE), "\n"); \
! 138: } while (0)
! 139:
! 140: #define ASM_OUTPUT_DWARF_ADDR_CONST(FILE, RTX) \
! 141: do { \
! 142: fprintf ((FILE), "\t%s\t", UNALIGNED_LONGLONG_ASM_OP); \
! 143: output_addr_const ((FILE), (RTX)); \
! 144: fputc ('\n', (FILE)); \
! 145: } while (0)
1.1 root 146:
147: /* ??? Not sure if this should be 4 or 8 bytes. 4 works for now. */
1.1.1.2 ! root 148: #define ASM_OUTPUT_DWARF_REF(FILE, LABEL) \
! 149: do { \
! 150: fprintf ((FILE), "\t%s\t", UNALIGNED_INT_ASM_OP); \
! 151: assemble_name ((FILE), (LABEL)); \
! 152: fprintf ((FILE), "\n"); \
! 153: } while (0)
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