1 /* Operating system specific defines to be used when targeting GCC for any 2 Solaris 2 system. 3 Copyright 2002 Free Software Foundation, Inc. 4 5 This file is part of GNU CC. 6 7 GNU CC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 2, or (at your option) 10 any later version. 11 12 GNU CC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with GNU CC; see the file COPYING. If not, write to 19 the Free Software Foundation, 59 Temple Place - Suite 330, 20 Boston, MA 02111-1307, USA. */ 21 22 /* We use stabs-in-elf for debugging, because that is what the native 23 toolchain uses. */ 24 #undef PREFERRED_DEBUGGING_TYPE 25 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG 26 27 /* Solaris 2 (at least as of 2.5.1) uses a 32-bit wchar_t. */ 28 #undef WCHAR_TYPE 29 #define WCHAR_TYPE "long int" 30 31 #undef WCHAR_TYPE_SIZE 32 #define WCHAR_TYPE_SIZE BITS_PER_WORD 33 34 /* Solaris 2 uses a wint_t different from the default. This is required 35 by the SCD 2.4.1, p. 6-83, Figure 6-66. */ 36 #undef WINT_TYPE 37 #define WINT_TYPE "long int" 38 39 #undef WINT_TYPE_SIZE 40 #define WINT_TYPE_SIZE BITS_PER_WORD 41 42 #define HANDLE_PRAGMA_REDEFINE_EXTNAME 1 43 44 /* ??? Note: in order for -compat-bsd to work fully, 45 we must somehow arrange to fixincludes /usr/ucbinclude 46 and put the result in $(libsubdir)/ucbinclude. */ 47 48 #undef CPP_SUBTARGET_SPEC 49 #define CPP_SUBTARGET_SPEC "\ 50 %{pthreads:-D_REENTRANT -D_PTHREADS} \ 51 %{!pthreads:%{threads:-D_REENTRANT -D_SOLARIS_THREADS}} \ 52 %{compat-bsd:-iwithprefixbefore ucbinclude -I/usr/ucbinclude} \ 53 " 54 55 /* Names to predefine in the preprocessor for this target machine. */ 56 #define TARGET_OS_CPP_BUILTINS() \ 57 do { \ 58 builtin_define_std ("unix"); \ 59 builtin_define_std ("sun"); \ 60 builtin_define ("__svr4__"); \ 61 builtin_define ("__SVR4"); \ 62 builtin_define ("__PRAGMA_REDEFINE_EXTNAME"); \ 63 builtin_assert ("system=unix"); \ 64 builtin_assert ("system=svr4"); \ 65 /* For C++ we need to add some additional macro \ 66 definitions required by the C++ standard \ 67 library. */ \ 68 if (c_language == clk_cplusplus) \ 69 { \ 70 builtin_define ("_XOPEN_SOURCE=500"); \ 71 builtin_define ("_LARGEFILE_SOURCE=1"); \ 72 builtin_define ("_LARGEFILE64_SOURCE=1"); \ 73 builtin_define ("__EXTENSIONS__"); \ 74 } \ 75 } while (0) 76 77 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas). 78 It's safe to pass -s always, even if -g is not used. */ 79 #undef ASM_SPEC 80 #define ASM_SPEC "\ 81 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ 82 %{fpic:-K PIC} %{fPIC:-K PIC} \ 83 %(asm_cpu) \ 84 " 85 86 /* We don't use the standard LIB_SPEC only because we don't yet support c++. */ 87 #undef LIB_SPEC 88 #define LIB_SPEC \ 89 "%{compat-bsd:-lucb -lsocket -lnsl -lelf -laio} \ 90 %{!shared:\ 91 %{!symbolic:\ 92 %{pthreads:-lpthread} \ 93 %{!pthreads:%{threads:-lthread}} \ 94 %{p|pg:-ldl} -lc}}" 95 96 #undef ENDFILE_SPEC 97 #define ENDFILE_SPEC "crtend.o%s crtn.o%s" 98 99 /* We don't use the standard svr4 STARTFILE_SPEC because it's wrong for us. */ 100 #undef STARTFILE_SPEC 101 #define STARTFILE_SPEC "%{!shared: \ 102 %{!symbolic: \ 103 %{p:mcrt1.o%s} \ 104 %{!p: \ 105 %{pg:gcrt1.o%s gmon.o%s} \ 106 %{!pg:crt1.o%s}}}} \ 107 crti.o%s %(startfile_arch) \ 108 crtbegin.o%s" 109 110 #undef STARTFILE_ARCH32_SPEC 111 #define STARTFILE_ARCH32_SPEC "%{ansi:values-Xc.o%s} \ 112 %{!ansi:values-Xa.o%s}" 113 114 #undef STARTFILE_ARCH_SPEC 115 #define STARTFILE_ARCH_SPEC STARTFILE_ARCH32_SPEC 116 117 #undef LINK_ARCH32_SPEC_BASE 118 #define LINK_ARCH32_SPEC_BASE \ 119 "%{G:-G} \ 120 %{YP,*} \ 121 %{R*} \ 122 %{compat-bsd: \ 123 %{!YP,*:%{p|pg:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 124 %{!p:%{!pg:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}}} \ 125 -R /usr/ucblib} \ 126 %{!compat-bsd: \ 127 %{!YP,*:%{p|pg:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ 128 %{!p:%{!pg:-Y P,/usr/ccs/lib:/usr/lib}}}}" 129 130 #undef LINK_ARCH32_SPEC 131 #define LINK_ARCH32_SPEC LINK_ARCH32_SPEC_BASE 132 133 #undef LINK_ARCH_SPEC 134 #define LINK_ARCH_SPEC LINK_ARCH32_SPEC 135 136 /* This should be the same as in svr4.h, except with -R added. */ 137 #undef LINK_SPEC 138 #define LINK_SPEC \ 139 "%{h*} %{v:-V} \ 140 %{b} %{Wl,*:%*} \ 141 %{static:-dn -Bstatic} \ 142 %{shared:-G -dy %{!mimpure-text:-z text}} \ 143 %{symbolic:-Bsymbolic -G -dy -z text} \ 144 %(link_arch) \ 145 %{Qy:} %{!Qn:-Qy}" 146 147 /* This defines which switch letters take arguments. 148 It is as in svr4.h but with -R added. */ 149 #undef SWITCH_TAKES_ARG 150 #define SWITCH_TAKES_ARG(CHAR) \ 151 (DEFAULT_SWITCH_TAKES_ARG(CHAR) \ 152 || (CHAR) == 'R' \ 153 || (CHAR) == 'h' \ 154 || (CHAR) == 'z') 155 156 #define STDC_0_IN_SYSTEM_HEADERS 1 157 158 /* 159 * Attempt to turn on access permissions for the stack. 160 * 161 * This code must be defined when compiling gcc but not when compiling 162 * libgcc2.a, unless we're generating code for 64-bit SPARC 163 * 164 * _SC_STACK_PROT is only defined for post 2.6, but we want this code 165 * to run always. 2.6 can change the stack protection but has no way to 166 * query it. 167 * 168 */ 169 170 /* This declares mprotect (used in TRANSFER_FROM_TRAMPOLINE) for 171 libgcc2.c. */ 172 /* We don't want to include this because sys/mman.h is not present on 173 some non-Solaris configurations that use sol2.h. */ 174 #if 0 /* def L_trampoline */ 175 #include <sys/mman.h> 176 #endif 177 178 #define TRANSFER_FROM_TRAMPOLINE \ 179 \ 180 /* #define STACK_PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC) */ \ 181 \ 182 static int need_enable_exec_stack; \ 183 \ 184 static void check_enabling(void) __attribute__ ((constructor)); \ 185 static void check_enabling(void) \ 186 { \ 187 extern long sysconf(int); \ 188 \ 189 int prot = (int) sysconf(515 /* _SC_STACK_PROT */); \ 190 if (prot != 7 /* STACK_PROT_RWX */) \ 191 need_enable_exec_stack = 1; \ 192 } \ 193 \ 194 extern void __enable_execute_stack (void *); \ 195 void \ 196 __enable_execute_stack (addr) \ 197 void *addr; \ 198 { \ 199 if (!need_enable_exec_stack) \ 200 return; \ 201 else { \ 202 long size = getpagesize (); \ 203 long mask = ~(size-1); \ 204 char *page = (char *) (((long) addr) & mask); \ 205 char *end = (char *) ((((long) (addr + TRAMPOLINE_SIZE)) & mask) + size); \ 206 \ 207 if (mprotect (page, end - page, 7 /* STACK_PROT_RWX */) < 0) \ 208 perror ("mprotect of trampoline code"); \ 209 } \ 210 } 211