| /* Definitions for LynxOS on i386. |
| Copyright (C) 1993-2022 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC 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 3, or (at your option) |
| any later version. |
| |
| GCC 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 GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do \ |
| { \ |
| builtin_define ("__LITTLE_ENDIAN__"); \ |
| builtin_define ("__x86__"); \ |
| } \ |
| while (0) |
| |
| /* The svr4 ABI for the i386 says that records and unions are returned |
| in memory. */ |
| |
| #define DEFAULT_PCC_STRUCT_RETURN 1 |
| |
| /* BSS_SECTION_ASM_OP gets defined i386/unix.h. */ |
| |
| #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
| asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) |
| |
| /* LynxOS's GDB counts the floating point registers from 16. */ |
| |
| #undef DBX_REGISTER_NUMBER |
| #define DBX_REGISTER_NUMBER(n) \ |
| (TARGET_64BIT ? dbx64_register_map[n] \ |
| : (n) == 0 ? 0 \ |
| : (n) == 1 ? 2 \ |
| : (n) == 2 ? 1 \ |
| : (n) == 3 ? 3 \ |
| : (n) == 4 ? 6 \ |
| : (n) == 5 ? 7 \ |
| : (n) == 6 ? 5 \ |
| : (n) == 7 ? 4 \ |
| : ((n) >= FIRST_STACK_REG && (n) <= LAST_STACK_REG) ? (int) (n) + 8 \ |
| : (-1)) |
| |
| /* Undefine SUBTARGET_EXTRA_SPECS it is empty anyway. We define it in |
| config/lynx.h. */ |
| |
| #undef SUBTARGET_EXTRA_SPECS |
| |
| /* Undefine the definition from att.h to enable our default. */ |
| |
| #undef ASM_OUTPUT_ALIGN |
| |
| /* The file i386.cc defines TARGET_HAVE_TLS unconditionally if |
| HAVE_AS_TLS is defined. HAVE_AS_TLS is defined as gas support for |
| TLS is detected by configure. We undefine it here. */ |
| |
| #undef HAVE_AS_TLS |