1 /* Definitions of target machine for GCC, for SPARC running Solaris 2 2 Copyright 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005, 3 2006, 2007, 2008, 2010 Free Software Foundation, Inc. 4 Contributed by Ron Guilmette (rfg@netcom.com). 5 Additional changes by David V. Henkel-Wallace (gumby@cygnus.com). 6 7 This file is part of GCC. 8 9 GCC is free software; you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation; either version 3, or (at your option) 12 any later version. 13 14 GCC is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with GCC; see the file COPYING3. If not see 21 <http://www.gnu.org/licenses/>. */ 22 23 /* Supposedly the same as vanilla sparc svr4, except for the stuff below: */ 24 25 /* This is here rather than in sparc.h because it's not known what 26 other assemblers will accept. */ 27 28 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 29 #undef ASM_CPU_DEFAULT_SPEC 30 #define ASM_CPU_DEFAULT_SPEC "-xarch=v8plus" 31 #endif 32 33 #if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc 34 #undef ASM_CPU_DEFAULT_SPEC 35 #define ASM_CPU_DEFAULT_SPEC "-xarch=v8plusa" 36 #endif 37 38 #if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3 39 #undef ASM_CPU_DEFAULT_SPEC 40 #define ASM_CPU_DEFAULT_SPEC "-xarch=v8plusb" 41 #endif 42 43 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara 44 #undef ASM_CPU_DEFAULT_SPEC 45 #define ASM_CPU_DEFAULT_SPEC "-xarch=v8plusb" 46 #endif 47 48 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara2 49 #undef ASM_CPU_DEFAULT_SPEC 50 #define ASM_CPU_DEFAULT_SPEC "-xarch=v8plusb" 51 #endif 52 53 #undef ASM_CPU_SPEC 54 #define ASM_CPU_SPEC "\ 55 %{mcpu=v9:-xarch=v8plus} \ 56 %{mcpu=ultrasparc:-xarch=v8plusa} \ 57 %{mcpu=ultrasparc3:-xarch=v8plusb} \ 58 %{mcpu=niagara:-xarch=v8plusb} \ 59 %{mcpu=niagara2:-xarch=v8plusb} \ 60 %{!mcpu*:%(asm_cpu_default)} \ 61 " 62 63 #undef SUBTARGET_EXTRA_SPECS 64 #define SUBTARGET_EXTRA_SPECS \ 65 { "startfile_arch", STARTFILE_ARCH_SPEC }, \ 66 { "link_arch", LINK_ARCH_SPEC } 67 68 /* However it appears that Solaris 2.0 uses the same reg numbering as 69 the old BSD-style system did. */ 70 71 /* The Solaris 2 assembler uses .skip, not .zero, so put this back. */ 72 #undef ASM_OUTPUT_SKIP 73 #define ASM_OUTPUT_SKIP(FILE,SIZE) \ 74 fprintf (FILE, "\t.skip %u\n", (int)(SIZE)) 75 76 #undef LOCAL_LABEL_PREFIX 77 #define LOCAL_LABEL_PREFIX "." 78 79 /* This is how to store into the string LABEL 80 the symbol_ref name of an internal numbered label where 81 PREFIX is the class of label and NUM is the number within the class. 82 This is suitable for output with `assemble_name'. */ 83 84 #undef ASM_GENERATE_INTERNAL_LABEL 85 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ 86 sprintf ((LABEL), "*.L%s%lu", (PREFIX), (unsigned long)(NUM)) 87 88 /* The native TLS-enabled assembler requires the directive #tls_object 89 to be put on objects in TLS sections (as of v7.1). This is not 90 required by the GNU assembler but supported on SPARC. */ 91 #undef ASM_DECLARE_OBJECT_NAME 92 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ 93 do \ 94 { \ 95 HOST_WIDE_INT size; \ 96 \ 97 if (targetm.have_tls && DECL_THREAD_LOCAL_P (DECL)) \ 98 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "tls_object"); \ 99 else \ 100 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ 101 \ 102 size_directive_output = 0; \ 103 if (!flag_inhibit_size_directive \ 104 && (DECL) && DECL_SIZE (DECL)) \ 105 { \ 106 size_directive_output = 1; \ 107 size = int_size_in_bytes (TREE_TYPE (DECL)); \ 108 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ 109 } \ 110 \ 111 ASM_OUTPUT_LABEL (FILE, NAME); \ 112 } \ 113 while (0) 114 115 /* The Solaris assembler cannot grok .stabd directives. */ 116 #undef NO_DBX_BNSYM_ENSYM 117 #define NO_DBX_BNSYM_ENSYM 1 118 119 120 #undef ENDFILE_SPEC 121 #define ENDFILE_SPEC \ 122 "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 123 crtend.o%s crtn.o%s" 124 125 /* Select a format to encode pointers in exception handling data. CODE 126 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 127 true if the symbol may be affected by dynamic relocations. 128 129 Some Solaris dynamic linkers don't handle unaligned section relative 130 relocs properly, so force them to be aligned. */ 131 #ifndef HAVE_AS_SPARC_UA_PCREL 132 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 133 ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr) 134 #endif 135 136 137 /* Define for support of TFmode long double. 138 SPARC ABI says that long double is 4 words. */ 139 #define LONG_DOUBLE_TYPE_SIZE 128 140 141 /* Solaris's _Qp_* library routine implementation clobbers the output 142 memory before the inputs are fully consumed. */ 143 144 #undef TARGET_BUGGY_QP_LIB 145 #define TARGET_BUGGY_QP_LIB 1 146 147 #undef SUN_CONVERSION_LIBFUNCS 148 #define SUN_CONVERSION_LIBFUNCS 1 149 150 #undef DITF_CONVERSION_LIBFUNCS 151 #define DITF_CONVERSION_LIBFUNCS 1 152 153 #undef SUN_INTEGER_MULTIPLY_64 154 #define SUN_INTEGER_MULTIPLY_64 1 155 156 /* Solaris allows 64-bit out and global registers to be used in 32-bit mode. 157 sparc_override_options will disable V8+ if either not generating V9 code 158 or generating 64-bit code. */ 159 #undef TARGET_DEFAULT 160 #ifdef TARGET_64BIT_DEFAULT 161 #define TARGET_DEFAULT \ 162 (MASK_V9 + MASK_64BIT + MASK_PTR64 + MASK_STACK_BIAS + \ 163 MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) 164 #else 165 #define TARGET_DEFAULT \ 166 (MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) 167 #endif 168 169 /* Solaris-specific #pragmas are implemented on top of attributes. Hook in 170 the bits from config/sol2.c. */ 171 #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes 172 #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE 173 174 /* Register the Solaris-specific #pragma directives. */ 175 #define REGISTER_TARGET_PRAGMAS() solaris_register_pragmas () 176 177 /* Output a simple call for .init/.fini. */ 178 #define ASM_OUTPUT_CALL(FILE, FN) \ 179 do \ 180 { \ 181 fprintf (FILE, "\tcall\t"); \ 182 print_operand (FILE, XEXP (DECL_RTL (FN), 0), 0); \ 183 fprintf (FILE, "\n\tnop\n"); \ 184 } \ 185 while (0) 186 187 /* This is how to output an assembler line that says to advance 188 the location counter to a multiple of 2**LOG bytes using the 189 NOP instruction as padding. */ 190 #define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \ 191 if ((LOG) != 0) \ 192 fprintf (FILE, "\t.align %d,0x1000000\n", (1<<(LOG))) 193 194 /* Use Solaris ELF section syntax. */ 195 #undef TARGET_ASM_NAMED_SECTION 196 #define TARGET_ASM_NAMED_SECTION sparc_solaris_elf_asm_named_section 197 198 /* Solaris/SPARC as uses a non-standard .section/.pushsection syntax. 199 While gas supports it, too, we prefer the standard variant. */ 200 #ifndef USE_GAS 201 #undef PUSHSECTION_FORMAT 202 #define PUSHSECTION_FORMAT "\t.pushsection\t\"%s\"\n" 203 #endif 204 205 #define MD_UNWIND_SUPPORT "config/sparc/sol2-unwind.h" 206