| /* Definitions for SH running Linux-based GNU systems using ELF |
| Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005 |
| Free Software Foundation, Inc. |
| Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp> |
| |
| 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 2, 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 this program; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* Run-time Target Specification. */ |
| #undef TARGET_VERSION |
| #define TARGET_VERSION fputs (" (SH GNU/Linux with ELF)", stderr); |
| |
| /* We're not SYSVR4, not having /usr/ccs */ |
| #undef MD_EXEC_PREFIX |
| #undef MD_STARTFILE_PREFIX |
| |
| /* This was defined in linux.h. Define it here also. */ |
| #define HANDLE_PRAGMA_PACK_PUSH_POP |
| |
| /* Don't assume anything about the header files. */ |
| #define NO_IMPLICIT_EXTERN_C |
| |
| /* The GNU C++ standard library requires that these macros be defined. */ |
| #undef CPLUSPLUS_CPP_SPEC |
| #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" |
| |
| /* Enable DWARF 2 exceptions. */ |
| #undef DWARF2_UNWIND_INFO |
| #define DWARF2_UNWIND_INFO 1 |
| |
| #undef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "\ |
| %{posix:-D_POSIX_SOURCE} \ |
| %{pthread:-D_REENTRANT -D_PTHREADS} \ |
| " |
| |
| #define TARGET_OS_CPP_BUILTINS() \ |
| do { \ |
| builtin_define_std ("unix"); \ |
| builtin_define ("__gnu_linux__"); \ |
| builtin_define_std ("linux"); \ |
| builtin_assert ("system=linux"); \ |
| builtin_assert ("system=unix"); \ |
| builtin_assert ("system=posix"); \ |
| } while (0) |
| |
| #undef TARGET_DEFAULT |
| #define TARGET_DEFAULT \ |
| (TARGET_CPU_DEFAULT | USERMODE_BIT | TARGET_ENDIAN_DEFAULT) |
| |
| #define TARGET_ASM_FILE_END file_end_indicate_exec_stack |
| |
| #undef SUBTARGET_LINK_EMUL_SUFFIX |
| #define SUBTARGET_LINK_EMUL_SUFFIX "_linux" |
| #undef SUBTARGET_LINK_SPEC |
| #define SUBTARGET_LINK_SPEC \ |
| "%{shared:-shared} \ |
| %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \ |
| %{static:-static}" |
| |
| #undef LIB_SPEC |
| #define LIB_SPEC \ |
| "%{pthread:-lpthread} \ |
| %{shared: -lc} \ |
| %{!shared: \ |
| %{mieee-fp:-lieee} \ |
| %{profile:-lc_p} %{!profile: -lc}}" |
| |
| #if defined(HAVE_LD_EH_FRAME_HDR) |
| #undef LINK_EH_SPEC |
| #define LINK_EH_SPEC "%{!static:--eh-frame-hdr} " |
| #endif |
| |
| #undef STARTFILE_SPEC |
| #if defined HAVE_LD_PIE |
| #define STARTFILE_SPEC \ |
| "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \ |
| crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" |
| #else |
| #define STARTFILE_SPEC \ |
| "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \ |
| crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}" |
| #endif |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC \ |
| "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s" |
| |
| #define LINK_GCC_C_SEQUENCE_SPEC \ |
| "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" |
| |
| /* Use --as-needed -lgcc_s for eh support. */ |
| #ifdef HAVE_LD_AS_NEEDED |
| #define USE_LD_AS_NEEDED 1 |
| #endif |
| |
| /* Determine whether the the entire c99 runtime |
| is present in the runtime library. */ |
| #define TARGET_C99_FUNCTIONS 1 |
| |
| /* Output assembler code to STREAM to call the profiler. */ |
| |
| #undef FUNCTION_PROFILER |
| #define FUNCTION_PROFILER(STREAM,LABELNO) \ |
| do { \ |
| if (flag_pic) \ |
| { \ |
| fprintf (STREAM, "\tmov.l\t3f,r1\n"); \ |
| fprintf (STREAM, "\tmova\t3f,r0\n"); \ |
| fprintf (STREAM, "\tadd\tr1,r0\n"); \ |
| fprintf (STREAM, "\tmov.l\t1f,r1\n"); \ |
| fprintf (STREAM, "\tmov.l\t@(r0,r1),r1\n"); \ |
| } \ |
| else \ |
| fprintf (STREAM, "\tmov.l\t1f,r1\n"); \ |
| fprintf (STREAM, "\tsts.l\tpr,@-r15\n"); \ |
| fprintf (STREAM, "\tmova\t2f,r0\n"); \ |
| fprintf (STREAM, "\tjmp\t@r1\n"); \ |
| fprintf (STREAM, "\tlds\tr0,pr\n"); \ |
| fprintf (STREAM, "\t.align\t2\n"); \ |
| if (flag_pic) \ |
| { \ |
| fprintf (STREAM, "1:\t.long\tmcount@GOT\n"); \ |
| fprintf (STREAM, "3:\t.long\t_GLOBAL_OFFSET_TABLE_\n"); \ |
| } \ |
| else \ |
| fprintf (STREAM, "1:\t.long\tmcount\n"); \ |
| fprintf (STREAM, "2:\tlds.l\t@r15+,pr\n"); \ |
| } while (0) |
| |
| #define MD_UNWIND_SUPPORT "config/sh/linux-unwind.h" |
| |
| /* For SH3 and SH4, we use a slot of the unwind frame which correspond |
| to a fake register number 16 as a placeholder for the return address |
| in MD_FALLBACK_FRAME_STATE_FOR and its content will be read with |
| _Unwind_GetGR which uses dwarf_reg_size_table to get the size of |
| the register. So the entry of dwarf_reg_size_table corresponding to |
| this slot must be set. To do this, we redefine DBX_REGISTER_NUMBER |
| so as to return itself for 16. */ |
| #undef DBX_REGISTER_NUMBER |
| #define DBX_REGISTER_NUMBER(REGNO) \ |
| ((! TARGET_SH5 && (REGNO) == 16) ? 16 : SH_DBX_REGISTER_NUMBER (REGNO)) |