/* Definitions for SH running Linux-based GNU systems using ELF
- Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ 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 GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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.
-GNU CC is distributed in the hope that it will be useful,
+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.
#undef TARGET_VERSION
#define TARGET_VERSION fputs (" (SH GNU/Linux with ELF)", stderr);
-/* Return to the original ELF way. */
-#undef USER_LABEL_PREFIX
-#define USER_LABEL_PREFIX ""
-
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
-
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
-
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
+/* Enable DWARF 2 exceptions. */
+#undef DWARF2_UNWIND_INFO
+#define DWARF2_UNWIND_INFO 1
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "\
- %{fPIC:-D__PIC__ -D__pic__} \
- %{fpic:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT -D_PTHREADS} \
"
-#undef SUBTARGET_CPP_ENDIAN_SPEC
-#define SUBTARGET_CPP_ENDIAN_SPEC \
- "%{mb:-D__BIG_ENDIAN__} \
- %{!mb:-D__LITTLE_ENDIAN__}"
-
-#undef CPP_DEFAULT_CPU_SPEC
-#define CPP_DEFAULT_CPU_SPEC "-D__SH3__ -D__sh3__"
-
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-D__ELF__ -Dunix -D__sh__ -Dlinux -Asystem=posix"
-
-#undef ASM_SPEC
-#define ASM_SPEC "%{!mb:-little} %{mrelax:-relax}"
-
-#undef CC1_SPEC
-#define CC1_SPEC \
- "-musermode %{!mb:-ml} %{!m3e:%{!m4:-m3}}"
-
-#undef CC1PLUS_SPEC
-#define CC1PLUS_SPEC \
- "-musermode %{!mb:-ml} %{!m3e:%{!m4:-m3}}"
-
-#undef LINK_SPEC
-#define LINK_SPEC \
- "%{!mb:-m shlelf_linux} %{mrelax:-relax} \
- %{shared:-shared} \
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ LINUX_TARGET_OS_CPP_BUILTINS(); \
+ if (flag_pic) \
+ { \
+ builtin_define ("__PIC__"); \
+ builtin_define ("__pic__"); \
+ } \
+ } \
+ 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
+
+#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} \
- %{!rpath:-rpath /lib}} \
+ %{!dynamic-linker:-dynamic-linker /lib/ld-linux.so.2}} \
%{static:-static}"
-#undef LIB_SPEC
-#define LIB_SPEC \
- "%{shared: -lc} \
- %{!shared: %{pthread:-lthread} \
- %{profile:-lc_p} %{!profile: -lc}}"
-
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC \
- "%{!shared: \
- %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
- %{!p:%{profile:gcrt1.o%s} \
- %{!profile:crt1.o%s}}}} \
- crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+/* 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) \
+ { \
+ 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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