Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/rs6000/lynx.h @ 158:494b0b89df80 default tip
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| author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 25 May 2020 18:13:55 +0900 |
| parents | 1830386684a0 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions for Rs6000 running LynxOS. |
| 145 | 2 Copyright (C) 1995-2020 Free Software Foundation, Inc. |
| 0 | 3 Contributed by David Henkel-Wallace, Cygnus Support (gumby@cygnus.com) |
| 4 Rewritten by Adam Nemet, LynuxWorks Inc. | |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published | |
| 10 by the Free Software Foundation; either version 3, or (at your | |
| 11 option) any later version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 License for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 /* Undefine the definition to enable the LynxOS default from the | |
| 23 top-level lynx.h. */ | |
| 24 | |
| 25 #undef SUBTARGET_EXTRA_SPECS | |
| 26 | |
| 27 /* Get rid off the spec definitions from rs6000/sysv4.h. */ | |
| 28 | |
| 29 #undef CPP_SPEC | |
| 30 #define CPP_SPEC \ | |
| 31 "%{msoft-float: -D_SOFT_FLOAT} \ | |
| 32 %(cpp_cpu) \ | |
| 33 %(cpp_os_lynx)" | |
| 34 | |
| 35 /* LynxOS only supports big-endian on PPC so we override the | |
| 36 definition from sysv4.h. Since the LynxOS 4.0 compiler was set to | |
| 37 return every structure in memory regardless of their size we have | |
| 38 to emulate the same behavior here with disabling the SVR4 structure | |
| 39 returning. */ | |
| 40 | |
| 41 #undef CC1_SPEC | |
| 42 #define CC1_SPEC \ | |
| 43 "%{G*} %{mno-sdata:-msdata=none} \ | |
| 44 %{maltivec:-mabi=altivec} \ | |
| 45 -maix-struct-return" | |
| 46 | |
| 47 #undef ASM_SPEC | |
| 48 #define ASM_SPEC \ | |
| 49 "%(asm_cpu) \ | |
| 50 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}}" | |
| 51 | |
| 52 #undef STARTFILE_SPEC | |
| 53 #undef ENDFILE_SPEC | |
| 54 #undef LIB_SPEC | |
| 55 #undef LINK_SPEC | |
| 56 #define LINK_SPEC \ | |
| 57 "%{!msdata=none:%{G*}} %{msdata=none:-G0} \ | |
| 58 %(link_os_lynx)" | |
| 59 | |
| 60 /* Override the definition from sysv4.h. */ | |
| 61 | |
| 62 #undef TARGET_OS_CPP_BUILTINS | |
| 63 #define TARGET_OS_CPP_BUILTINS() \ | |
| 64 do \ | |
| 65 { \ | |
| 66 builtin_define ("__BIG_ENDIAN__"); \ | |
| 67 builtin_define ("__powerpc__"); \ | |
| 68 builtin_assert ("cpu=powerpc"); \ | |
| 69 builtin_assert ("machine=powerpc"); \ | |
| 70 builtin_define ("__PPC__"); \ | |
| 71 } \ | |
| 72 while (0) | |
| 73 | |
| 74 /* LynxOS does not do anything with .fixup plus let's not create | |
| 75 writable section for linkonce.r and linkonce.t. */ | |
| 76 | |
| 77 #undef RELOCATABLE_NEEDS_FIXUP | |
| 78 | |
| 79 /* Override these from rs6000.h with the generic definition. */ | |
| 80 | |
| 81 #undef SIZE_TYPE | |
| 82 #undef ASM_OUTPUT_ALIGN | |
| 83 #undef PREFERRED_DEBUGGING_TYPE | |
| 84 | |
| 85 /* The file rs6000.c defines TARGET_HAVE_TLS unconditionally to the | |
| 86 value of HAVE_AS_TLS. HAVE_AS_TLS is true as gas support for TLS | |
| 87 is detected by configure. Override the definition to false. */ | |
| 88 | |
| 89 #undef HAVE_AS_TLS | |
| 90 #define HAVE_AS_TLS 0 | |
| 91 | |
| 111 | 92 /* Use standard DWARF numbering for DWARF debugging information. */ |
| 93 #define RS6000_USE_DWARF_NUMBERING | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
94 |
| 0 | 95 #ifdef CRT_BEGIN |
| 96 /* This function is part of crtbegin*.o which is at the beginning of | |
| 97 the link and is called from .fini which is usually toward the end | |
| 98 of the executable. Make it longcall so that we don't limit the | |
| 99 text size of the executables to 32M. */ | |
| 100 | |
| 101 static void __do_global_dtors_aux (void) __attribute__ ((longcall)); | |
| 102 #endif /* CRT_BEGIN */ | |
| 103 | |
| 104 #ifdef CRT_END | |
| 105 /* Similarly here. This function resides in crtend*.o which is toward | |
| 106 to end of the link and is called from .init which is at the | |
| 107 beginning. */ | |
| 108 | |
| 109 static void __do_global_ctors_aux (void) __attribute__ ((longcall)); | |
| 110 #endif /* CRT_END */ |