1 /* Configuration for an OpenBSD i386 target. 2 3 Copyright (C) 2005-2018 Free Software Foundation, Inc. 4 5 This file is part of GCC. 6 7 GCC 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 3, or (at your option) 10 any later version. 11 12 GCC 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 GCC; see the file COPYING3. If not see 19 <http://www.gnu.org/licenses/>. */ 20 21 #define TARGET_OS_CPP_BUILTINS() \ 22 do \ 23 { \ 24 OPENBSD_OS_CPP_BUILTINS(); \ 25 } \ 26 while (0) 27 28 #undef DBX_REGISTER_NUMBER 29 #define DBX_REGISTER_NUMBER(n) \ 30 (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n]) 31 32 /* This must agree with <machine/_types.h>. */ 33 #undef SIZE_TYPE 34 #define SIZE_TYPE "long unsigned int" 35 36 #undef PTRDIFF_TYPE 37 #define PTRDIFF_TYPE "long int" 38 39 #undef WCHAR_TYPE 40 #define WCHAR_TYPE "int" 41 42 #undef WCHAR_TYPE_SIZE 43 #define WCHAR_TYPE_SIZE 32 44 45 #undef WINT_TYPE 46 #define WINT_TYPE "int" 47 48 /* Don't default to pcc-struct-return, because gcc is the only compiler, and 49 we want to retain compatibility with older gcc versions. */ 50 51 #undef DEFAULT_PCC_STRUCT_RETURN 52 #define DEFAULT_PCC_STRUCT_RETURN 0 53 54 /* Override the default comment-starter of "/". */ 55 #undef ASM_COMMENT_START 56 #define ASM_COMMENT_START "#" 57 58 #undef ASM_APP_ON 59 #define ASM_APP_ON "#APP\n" 60 61 #undef ASM_APP_OFF 62 #define ASM_APP_OFF "#NO_APP\n" 63 64 /* A C statement to output to the stdio stream FILE an assembler 65 command to advance the location counter to a multiple of 1<<LOG 66 bytes if it is within MAX_SKIP bytes. 67 68 This is used to align code labels according to Intel recommendations. */ 69 70 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN 71 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ 72 do { \ 73 if ((LOG) != 0) { \ 74 if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ 75 else { \ 76 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ 77 /* Make sure that we have at least 8 byte alignment if > 8 byte \ 78 alignment is preferred. */ \ 79 if ((LOG) > 3 \ 80 && (1 << (LOG)) > ((MAX_SKIP) + 1) \ 81 && (MAX_SKIP) >= 7) \ 82 fputs ("\t.p2align 3\n", (FILE)); \ 83 } \ 84 } \ 85 } while (0) 86 #endif 87 88 /* OpenBSD's profiler recovers all information from the stack pointer. 89 The icky part is not here, but in <machine/profile.h>. */ 90 #undef FUNCTION_PROFILER 91 #define FUNCTION_PROFILER(FILE, LABELNO) \ 92 fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE); 93 94 #undef LINK_SPEC 95 #define LINK_SPEC \ 96 "%{!shared:%{!nostdlib:%{!r:%{!e*:-e __start}}}} \ 97 %{shared:-shared} %{R*} \ 98 %{static:-Bstatic} \ 99 %{!static:-Bdynamic} \ 100 %{assert*} \ 101 -dynamic-linker /usr/libexec/ld.so" 102 103 #undef STARTFILE_SPEC 104 #define STARTFILE_SPEC "\ 105 %{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \ 106 crtbegin%O%s} %{shared:crtbeginS%O%s}" 107 108 #undef ENDFILE_SPEC 109 #define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}" 110 111 #define OBSD_HAS_CORRECT_SPECS 112 113 #define HAVE_ENABLE_EXECUTE_STACK 114