1/* Definitions of target machine for gcc for Hitachi Super-H using ELF. 2 Copyright (C) 1996, 1997 Free Software Foundation, Inc. 3 Contributed by Ian Lance Taylor <ian@cygnus.com>. 4 5This file is part of GNU CC. 6 7GNU CC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GNU CC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GNU CC; see the file COPYING. If not, write to 19the Free Software Foundation, 59 Temple Place - Suite 330, 20Boston, MA 02111-1307, USA. */ 21 22/* Mostly like the regular SH configuration. */ 23#include "sh/sh.h" 24 25/* No SDB debugging info. */ 26#undef SDB_DEBUGGING_INFO 27 28/* Undefine some macros defined in both sh.h and svr4.h. */ 29#undef IDENT_ASM_OP 30#undef ASM_FILE_END 31#undef ASM_OUTPUT_SOURCE_LINE 32#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END 33#undef CTORS_SECTION_ASM_OP 34#undef DTORS_SECTION_ASM_OP 35#undef ASM_OUTPUT_SECTION_NAME 36#undef ASM_OUTPUT_CONSTRUCTOR 37#undef ASM_OUTPUT_DESTRUCTOR 38#undef ASM_DECLARE_FUNCTION_NAME 39#undef PREFERRED_DEBUGGING_TYPE 40#undef MAX_OFILE_ALIGNMENT 41 42/* Be ELF-like. */ 43#include "svr4.h" 44 45/* The prefix to add to user-visible assembler symbols. 46 Note that svr4.h redefined it from the original value (that we want) 47 in sh.h */ 48 49#undef USER_LABEL_PREFIX 50#define USER_LABEL_PREFIX "_" 51 52#undef LOCAL_LABEL_PREFIX 53#define LOCAL_LABEL_PREFIX "." 54 55#undef ASM_FILE_START 56#define ASM_FILE_START(FILE) do { \ 57 output_file_directive ((FILE), main_input_filename); \ 58 if (TARGET_LITTLE_ENDIAN) \ 59 fprintf ((FILE), "\t.little\n"); \ 60} while (0) 61 62 63 64/* Let code know that this is ELF. */ 65#define CPP_PREDEFINES "-D__sh__ -D__ELF__ -Acpu(sh) -Amachine(sh)" 66 67/* Pass -ml and -mrelax to the assembler and linker. */ 68#undef ASM_SPEC 69#define ASM_SPEC "%{ml:-little} %{mrelax:-relax}" 70 71#undef LINK_SPEC 72#define LINK_SPEC "%{ml:-m shlelf} %{mrelax:-relax}" 73 74/* svr4.h undefined DBX_REGISTER_NUMBER, so we need to define it 75 again. */ 76#define DBX_REGISTER_NUMBER(REGNO) \ 77 (((REGNO) >= 22 && (REGNO) <= 39) ? ((REGNO) + 1) : (REGNO)) 78 79/* SH ELF, unlike most ELF implementations, uses underscores before 80 symbol names. */ 81#undef ASM_OUTPUT_LABELREF 82#define ASM_OUTPUT_LABELREF(STREAM,NAME) \ 83 asm_fprintf (STREAM, "%U%s", NAME) 84 85#undef ASM_GENERATE_INTERNAL_LABEL 86#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ 87 sprintf ((STRING), "*%s%s%d", LOCAL_LABEL_PREFIX, (PREFIX), (NUM)) 88 89#undef ASM_OUTPUT_INTERNAL_LABEL 90#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ 91 asm_fprintf ((FILE), "%L%s%d:\n", (PREFIX), (NUM)) 92 93#undef ASM_OUTPUT_SOURCE_LINE 94#define ASM_OUTPUT_SOURCE_LINE(file, line) \ 95do \ 96 { \ 97 static int sym_lineno = 1; \ 98 asm_fprintf ((file), ".stabn 68,0,%d,%LLM%d-", \ 99 (line), sym_lineno); \ 100 assemble_name ((file), \ 101 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\ 102 asm_fprintf ((file), "\n%LLM%d:\n", sym_lineno); \ 103 sym_lineno += 1; \ 104 } \ 105while (0) 106 107#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END 108#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \ 109do { \ 110 text_section (); \ 111 fprintf ((FILE), "\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO); \ 112} while (0) 113 114/* Arrange to call __main, rather than using crtbegin.o and crtend.o 115 and relying on .init and .fini being executed at appropriate times. */ 116#undef INIT_SECTION_ASM_OP 117#undef FINI_SECTION_ASM_OP 118#undef STARTFILE_SPEC 119#undef ENDFILE_SPEC 120 121/* HANDLE_SYSV_PRAGMA (defined by svr4.h) takes precedence over HANDLE_PRAGMA. 122 We want to use the HANDLE_PRAGMA from sh.h. */ 123#undef HANDLE_SYSV_PRAGMA 124