| /* Definitions of target machine for GNU compiler, for SPARClet. |
| Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
| Contributed by Doug Evans (dje@cygnus.com). |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "sparc/aout.h" |
| |
| /* -mbroken-saverestore is not included here because the long term |
| default is -mno-broken-saverestore. */ |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT (MASK_APP_REGS + MASK_EPILOGUE) |
| |
| /* -mlive-g0 is only supported on the sparclet. */ |
| #undef SUBTARGET_SWITCHES |
| #define SUBTARGET_SWITCHES \ |
| {"big-endian", -MASK_LITTLE_ENDIAN, "Generate code for big endian" }, \ |
| {"little-endian", MASK_LITTLE_ENDIAN, "Generate code for little endian" }, \ |
| {"live-g0", MASK_LIVE_G0, "Use g0 as a normal register" }, \ |
| {"no-live-g0", -MASK_LIVE_G0, "Register g0 is fixed with a zero value" }, \ |
| {"broken-saverestore", MASK_BROKEN_SAVERESTORE, "Enable save/restore bug workarounds" }, \ |
| {"no-broken-saverestore", -MASK_BROKEN_SAVERESTORE, "Disable save/restore bug workarouns" }, |
| |
| #undef ASM_SPEC |
| #define ASM_SPEC "%{mlittle-endian:-EL} %(asm_cpu)" |
| |
| /* Require the user to supply crt0.o. */ |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC "" |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC "%{mlittle-endian:-EL}" |
| |
| /* sparclet chips are bi-endian. */ |
| #undef BYTES_BIG_ENDIAN |
| #define BYTES_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) |
| #undef WORDS_BIG_ENDIAN |
| #define WORDS_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN) |
| |
| #undef SUBTARGET_OVERRIDE_OPTIONS |
| #define SUBTARGET_OVERRIDE_OPTIONS \ |
| do { \ |
| if (TARGET_LIVE_G0) \ |
| { \ |
| warning ("Option '-mlive-g0' deprecated."); \ |
| target_flags &= ~MASK_LIVE_G0; \ |
| } \ |
| else if (TARGET_BROKEN_SAVERESTORE) \ |
| { \ |
| warning ("Option '-mbroken-saverestore' deprecated."); \ |
| target_flags &= ~MASK_BROKEN_SAVERESTORE; \ |
| } \ |
| } while (0) |
| |
