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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [sh/] [linux.h] - Rev 311
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/* Definitions for SH running Linux-based GNU systems using ELF Copyright (C) 1999, 2000, 2002, 2003, 2004, 2005, 2006, 2007 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 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. You should have received a copy of the GNU General Public License along with GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* Run-time Target Specification. */ #undef TARGET_VERSION #define TARGET_VERSION fputs (" (SH GNU/Linux with ELF)", stderr); /* 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 \ { \ LINUX_TARGET_OS_CPP_BUILTINS(); \ } \ while (0) #undef TARGET_DEFAULT #define TARGET_DEFAULT \ (TARGET_CPU_DEFAULT | MASK_USERMODE | TARGET_ENDIAN_DEFAULT \ | TARGET_OPT_DEFAULT) #define TARGET_ASM_FILE_END file_end_indicate_exec_stack #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" #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 " LINUX_DYNAMIC_LINKER "}} \ %{static:-static}" /* Output assembler code to STREAM to call the profiler. */ #undef FUNCTION_PROFILER #define FUNCTION_PROFILER(STREAM,LABELNO) \ do { \ if (TARGET_SHMEDIA) \ { \ fprintf (STREAM, "\tpt\t1f,tr1\n"); \ fprintf (STREAM, "\taddi.l\tr15,-8,r15\n"); \ fprintf (STREAM, "\tst.l\tr15,0,r18\n"); \ if (flag_pic) \ { \ const char *gofs = "(datalabel _GLOBAL_OFFSET_TABLE_-(0f-.))"; \ fprintf (STREAM, "\tmovi\t((%s>>16)&0xffff),r21\n", gofs); \ fprintf (STREAM, "\tshori\t(%s & 0xffff),r21\n", gofs); \ fprintf (STREAM, "0:\tptrel/u\tr21,tr0\n"); \ fprintf (STREAM, "\tmovi\t((mcount@GOTPLT)&0xffff),r22\n"); \ fprintf (STREAM, "\tgettr\ttr0,r21\n"); \ fprintf (STREAM, "\tadd.l\tr21,r22,r21\n"); \ fprintf (STREAM, "\tld.l\tr21,0,r21\n"); \ fprintf (STREAM, "\tptabs\tr21,tr0\n"); \ } \ else \ fprintf (STREAM, "\tpt\tmcount,tr0\n"); \ fprintf (STREAM, "\tgettr\ttr1,r18\n"); \ fprintf (STREAM, "\tblink\ttr0,r63\n"); \ fprintf (STREAM, "1:\tld.l\tr15,0,r18\n"); \ fprintf (STREAM, "\taddi.l\tr15,8,r15\n"); \ } \ else \ { \ 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)) /* Since libgcc is compiled with -fpic for this target, we can't use __sdivsi3_1 as the division strategy for -O0 and -Os. */ #undef SH_DIV_STRATEGY_DEFAULT #define SH_DIV_STRATEGY_DEFAULT SH_DIV_CALL2 #undef SH_DIV_STR_FOR_SIZE #define SH_DIV_STR_FOR_SIZE "call2"
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