1 /* Common definitions for Intel 386 and AMD x86-64 systems using 2 GNU userspace. Copyright (C) 2012-2016 Free Software Foundation, Inc. 3 Contributed by Ilya Enkovich. 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 GCC is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along 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