1/* Common definitions for Intel 386 and AMD x86-64 systems using 2 GNU userspace. Copyright (C) 2012-2015 Free Software Foundation, Inc. 3 Contributed by Ilya Enkovich. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21/* The svr4 ABI for the i386 says that records and unions are returned 22 in memory. In the 64bit compilation we will turn this flag off in 23 ix86_option_override_internal, as we never do pcc_struct_return 24 scheme on this target. */ 25#undef DEFAULT_PCC_STRUCT_RETURN 26#define DEFAULT_PCC_STRUCT_RETURN 1 27 28/* We arrange for the whole %fs segment to map the tls area. */ 29#undef TARGET_TLS_DIRECT_SEG_REFS_DEFAULT 30#define TARGET_TLS_DIRECT_SEG_REFS_DEFAULT MASK_TLS_DIRECT_SEG_REFS 31 32#define TARGET_OS_CPP_BUILTINS() \ 33 do \ 34 { \ 35 GNU_USER_TARGET_OS_CPP_BUILTINS(); \ 36 } \ 37 while (0) 38 39#undef CPP_SPEC 40#define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" 41 42#undef GNU_USER_TARGET_CC1_SPEC 43#define GNU_USER_TARGET_CC1_SPEC "%(cc1_cpu) %{profile:-p}" 44 45#undef CC1_SPEC 46#define CC1_SPEC GNU_USER_TARGET_CC1_SPEC 47 48/* Similar to standard GNU userspace, but adding -ffast-math support. */ 49#define GNU_USER_TARGET_MATHFILE_SPEC \ 50 "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \ 51 %{mpc32:crtprec32.o%s} \ 52 %{mpc64:crtprec64.o%s} \ 53 %{mpc80:crtprec80.o%s}" 54 55#undef ENDFILE_SPEC 56#define ENDFILE_SPEC \ 57 GNU_USER_TARGET_MATHFILE_SPEC " " \ 58 GNU_USER_TARGET_ENDFILE_SPEC 59 60#define TARGET_ASM_FILE_END file_end_indicate_exec_stack 61 62/* The stack pointer needs to be moved while checking the stack. */ 63#define STACK_CHECK_MOVING_SP 1 64 65/* Static stack checking is supported by means of probes. */ 66#define STACK_CHECK_STATIC_BUILTIN 1 67 68/* We only build the -fsplit-stack support in libgcc if the 69 assembler has full support for the CFI directives. */ 70#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE 71#define TARGET_CAN_SPLIT_STACK 72#endif 73