| /* Definitions for Native Client systems. |
| Copyright (C) 2013 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. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* TODO: |
| glibc vs newlib options |
| */ |
| |
| #define GNU_USER_TARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define ("__native_client__"); \ |
| builtin_assert ("system=nacl"); \ |
| builtin_assert ("system=posix"); \ |
| builtin_define (BYTES_BIG_ENDIAN ? "__BIG_ENDIAN__" \ |
| : "__LITTLE_ENDIAN__"); \ |
| } while (0) |
| |
| /* This is the value for %(subtarget_cpp_spec). It goes with gnu-user.opt. */ |
| #undef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" |
| |
| /* The assembler is always a GNU one, which understands a - argument. |
| Since CPU/nacl.h defines SUBTARGET_EXTRA_ASM_SPEC to pass an extra |
| input file to the assembler, we need an explicit - to make it also |
| read the actual input when it's from stdin. */ |
| #define AS_NEEDS_DASH_FOR_PIPED_INPUT |
| |
| /* Since non-instructions can never go into code sections, |
| this is always false for Native Client targets. */ |
| #undef JUMP_TABLES_IN_TEXT_SECTION |
| #define JUMP_TABLES_IN_TEXT_SECTION 0 |
| |
| #define NACL_MIN_ALIGN(condition, bundle_size) \ |
| do { \ |
| if (condition) \ |
| { \ |
| /* All functions and branch targets are aligned to at least the \ |
| bundle size in native client. */ \ |
| if (align_functions < bundle_size) \ |
| align_functions = bundle_size; \ |
| if (align_jumps < bundle_size) \ |
| align_jumps = bundle_size; \ |
| if (align_labels < bundle_size) \ |
| align_labels = bundle_size; \ |
| if (align_loops < bundle_size) \ |
| align_loops = bundle_size; \ |
| } \ |
| } while (0) |
| |
| /* Every Native Client platform has a 'long double' type that is just |
| 'double', which is always the IEEE754 64-bit type. */ |
| #undef LONG_DOUBLE_TYPE_SIZE |
| #define LONG_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE |
| #undef LIBGCC2_HAS_TF_MODE |
| |
| /* For now, -static is effectively the default. But the driver |
| doesn't know that. The gnu-user.h definition is: |
| "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" |
| |
| TODO(mcgrathr): When we have multilib for newlib (static-only) vs glibc |
| (dynamic by default, -static available), this will need to be defined so |
| that it uses the -static flavor for newlib and the gnu-user.h default |
| (i.e. switching on -static) for glibc. */ |
| #undef LINK_GCC_C_SEQUENCE_SPEC |
| #define LINK_GCC_C_SEQUENCE_SPEC \ |
| "--start-group %G %L --end-group" |
