diff options
Diffstat (limited to 'gcc-4.9/gcc/config/sh/linux.h')
| -rw-r--r-- | gcc-4.9/gcc/config/sh/linux.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/sh/linux.h b/gcc-4.9/gcc/config/sh/linux.h new file mode 100644 index 000000000..c0a4ebd3e --- /dev/null +++ b/gcc-4.9/gcc/config/sh/linux.h @@ -0,0 +1,152 @@ +/* Definitions for SH running Linux-based GNU systems using ELF + Copyright (C) 1999-2014 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. */ + +/* 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 \ + { \ + GNU_USER_TARGET_OS_CPP_BUILTINS(); \ + } \ + while (0) + +#undef TARGET_DEFAULT +#define TARGET_DEFAULT \ + (TARGET_CPU_DEFAULT | 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 " GNU_USER_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) + +/* 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" + +/* Install the __sync libcalls. */ +#undef TARGET_INIT_LIBFUNCS +#define TARGET_INIT_LIBFUNCS sh_init_sync_libfuncs + +#undef SUBTARGET_OVERRIDE_OPTIONS +#define SUBTARGET_OVERRIDE_OPTIONS \ + do \ + { \ + /* Set default atomic model if it hasn't been specified. */ \ + if (global_options_set.x_sh_atomic_model_str == 0) \ + { \ + if (TARGET_SH3) \ + sh_atomic_model_str = "soft-gusa"; \ + else if (TARGET_SH1) \ + sh_atomic_model_str = "soft-imask"; \ + } \ + /* Set -musermode if it hasn't been specified. */ \ + if (global_options_set.x_TARGET_USERMODE == 0) \ + TARGET_USERMODE = true; \ + } \ + while (0) |