/usr/lib/gcc-cross/sh4-linux-gnu/6/plugin/include/config/sh/linux.h is in gcc-6-plugin-dev-sh4-linux-gnu 6.4.0-17ubuntu1cross1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 | /* Definitions for SH running Linux-based GNU systems using ELF
Copyright (C) 1999-2016 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
#if TARGET_ENDIAN_DEFAULT == MASK_LITTLE_ENDIAN
#define MUSL_DYNAMIC_LINKER_E "%{mb:eb}"
#else
#define MUSL_DYNAMIC_LINKER_E "%{!ml:eb}"
#endif
#if TARGET_CPU_DEFAULT & (MASK_HARD_SH2A_DOUBLE | MASK_SH4)
/* "-nofpu" if any nofpu option is specified. */
#define MUSL_DYNAMIC_LINKER_FP \
"%{m1|m2|m2a-nofpu|m3|m4-nofpu|m4-100-nofpu|m4-200-nofpu|m4-300-nofpu|" \
"m4-340|m4-400|m4-500|m4al:-nofpu}"
#else
/* "-nofpu" if none of the hard fpu options are specified. */
#define MUSL_DYNAMIC_LINKER_FP "%{m2a|m4|m4-100|m4-200|m4-300|m4a:;:-nofpu}"
#endif
#undef MUSL_DYNAMIC_LINKER
#define MUSL_DYNAMIC_LINKER \
"/lib/ld-musl-sh" MUSL_DYNAMIC_LINKER_E MUSL_DYNAMIC_LINKER_FP \
"%{mfdpic:-fdpic}.so.1"
#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
#undef SUBTARGET_LINK_EMUL_SUFFIX
#define SUBTARGET_LINK_EMUL_SUFFIX "%{mfdpic:_fd;:_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)
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