1 /* Definitions for TILE-Gx running Linux-based GNU systems with ELF. 2 Copyright (C) 2011-2020 Free Software Foundation, Inc. 3 Contributed by Walter Lee (walt@tilera.com) 4 5 This file is part of GCC. 6 7 GCC is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published 9 by the Free Software Foundation; either version 3, or (at your 10 option) any later version. 11 12 GCC is distributed in the hope that it will be useful, but WITHOUT 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 15 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 #undef CPP_SPEC 22 #define CPP_SPEC "%{pthread:-D_REENTRANT}" 23 24 #undef ASM_SPEC 25 #define ASM_SPEC "%(endian_spec) %{m32:--32} %{m64:--64}" 26 27 #undef LINK_SPEC 28 #define LINK_SPEC "%(endian_spec) \ 29 %{m64:-m elf64tilegx} %{m32:-m elf32tilegx} \ 30 %{shared:-shared} \ 31 %{!shared: \ 32 %{!static: \ 33 %{rdynamic:-export-dynamic} \ 34 -dynamic-linker \ 35 %{ m32: /lib32/ld.so.1} \ 36 %{!m32: /lib/ld.so.1}} \ 37 %{static:-static}}" 38 39 #define MULTILIB_DEFAULTS { "m64" } 40 41 #define NO_PROFILE_COUNTERS 1 42 43 #undef MCOUNT_NAME 44 #define MCOUNT_NAME "__mcount" 45 46 #undef NEED_INDICATE_EXEC_STACK 47 #define NEED_INDICATE_EXEC_STACK 1 48 49 #ifdef TARGET_LIBC_PROVIDES_SSP 50 /* TILE-Gx glibc provides __stack_chk_guard two pointer-size words before 51 tp. */ 52 #define TARGET_THREAD_SSP_OFFSET (-2 * GET_MODE_SIZE (ptr_mode)) 53 #endif 54 55 /* For __clear_cache in libgcc2.c. */ 56 #ifdef IN_LIBGCC2 57 58 /* Use the minimum page size of 4K. Alternatively we can call 59 getpagesize() but it introduces a libc dependence. 60 See Linux arch/tile/include/uapi/arch/icache.h for more commentary. */ 61 #undef CLEAR_INSN_CACHE 62 #define CLEAR_INSN_CACHE(BEG, END) \ 63 { \ 64 long size = (long) (END) - (long) (BEG); \ 65 if (size) \ 66 { \ 67 const char *p = (const char *) ((unsigned long) (BEG) & -64L); \ 68 const char *end = p + (size < 4096 ? size : 4096) - 1; \ 69 __insn_mf (); \ 70 for (; p <= end; p += 64) \ 71 __insn_icoh (p); \ 72 __insn_drain (); \ 73 } \ 74 } 75 76 #else 77 78 /* define CLEAR_INSN_CACHE so that gcc knows to expand __builtin__clear_cache 79 to the libraray call. */ 80 #undef CLEAR_INSN_CACHE 81 #define CLEAR_INSN_CACHE 1 82 83 #endif 84