diff options
Diffstat (limited to 'gcc-4.9/gcc/config/i386/lynx.h')
| -rw-r--r-- | gcc-4.9/gcc/config/i386/lynx.h | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/i386/lynx.h b/gcc-4.9/gcc/config/i386/lynx.h new file mode 100644 index 000000000..910930e71 --- /dev/null +++ b/gcc-4.9/gcc/config/i386/lynx.h @@ -0,0 +1,87 @@ +/* Definitions for LynxOS on i386. + Copyright (C) 1993-2014 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)) + +/* A C statement to output to the stdio stream FILE an assembler + command to advance the location counter to a multiple of 1<<LOG + bytes if it is within MAX_SKIP bytes. + + This is used to align code labels according to Intel recommendations. */ + +#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN +#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \ + do { \ + if ((LOG) != 0) { \ + if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \ + else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \ + } \ + } while (0) +#endif + +/* 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 + +/* Undefine the definition from elfos.h to enable our default. */ + +#undef PREFERRED_DEBUGGING_TYPE + +/* The file i386.c 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 |