diff options
Diffstat (limited to 'gcc/config/sh/elf.h')
| -rwxr-xr-x | gcc/config/sh/elf.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/gcc/config/sh/elf.h b/gcc/config/sh/elf.h new file mode 100755 index 0000000..68cc691 --- /dev/null +++ b/gcc/config/sh/elf.h @@ -0,0 +1,123 @@ +/* Definitions of target machine for gcc for Hitachi Super-H using ELF. + Copyright (C) 1996, 1997 Free Software Foundation, Inc. + Contributed by Ian Lance Taylor <ian@cygnus.com>. + +This file is part of GNU CC. + +GNU CC 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, +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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Mostly like the regular SH configuration. */ +#include "sh/sh.h" + +/* No SDB debugging info. */ +#undef SDB_DEBUGGING_INFO + +/* Undefine some macros defined in both sh.h and svr4.h. */ +#undef IDENT_ASM_OP +#undef ASM_FILE_END +#undef ASM_OUTPUT_SOURCE_LINE +#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END +#undef CTORS_SECTION_ASM_OP +#undef DTORS_SECTION_ASM_OP +#undef ASM_OUTPUT_SECTION_NAME +#undef ASM_OUTPUT_CONSTRUCTOR +#undef ASM_OUTPUT_DESTRUCTOR +#undef ASM_DECLARE_FUNCTION_NAME +#undef PREFERRED_DEBUGGING_TYPE +#undef MAX_OFILE_ALIGNMENT + +/* Be ELF-like. */ +#include "svr4.h" + +/* The prefix to add to user-visible assembler symbols. + Note that svr4.h redefined it from the original value (that we want) + in sh.h */ + +#undef USER_LABEL_PREFIX +#define USER_LABEL_PREFIX "_" + +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + +#undef ASM_FILE_START +#define ASM_FILE_START(FILE) do { \ + output_file_directive ((FILE), main_input_filename); \ + if (TARGET_LITTLE_ENDIAN) \ + fprintf ((FILE), "\t.little\n"); \ +} while (0) + + + +/* Let code know that this is ELF. */ +#define CPP_PREDEFINES "-D__sh__ -D__ELF__ -Acpu(sh) -Amachine(sh)" + +/* Pass -ml and -mrelax to the assembler and linker. */ +#undef ASM_SPEC +#define ASM_SPEC "%{ml:-little} %{mrelax:-relax}" + +#undef LINK_SPEC +#define LINK_SPEC "%{ml:-m shlelf} %{mrelax:-relax}" + +/* svr4.h undefined DBX_REGISTER_NUMBER, so we need to define it + again. */ +#define DBX_REGISTER_NUMBER(REGNO) \ + (((REGNO) >= 22 && (REGNO) <= 39) ? ((REGNO) + 1) : (REGNO)) + +/* SH ELF, unlike most ELF implementations, uses underscores before + symbol names. */ +#undef ASM_OUTPUT_LABELREF +#define ASM_OUTPUT_LABELREF(STREAM,NAME) \ + asm_fprintf (STREAM, "%U%s", NAME) + +#undef ASM_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \ + sprintf ((STRING), "*%s%s%d", LOCAL_LABEL_PREFIX, (PREFIX), (NUM)) + +#undef ASM_OUTPUT_INTERNAL_LABEL +#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ + asm_fprintf ((FILE), "%L%s%d:\n", (PREFIX), (NUM)) + +#undef ASM_OUTPUT_SOURCE_LINE +#define ASM_OUTPUT_SOURCE_LINE(file, line) \ +do \ + { \ + static int sym_lineno = 1; \ + asm_fprintf ((file), ".stabn 68,0,%d,%LLM%d-", \ + (line), sym_lineno); \ + assemble_name ((file), \ + XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\ + asm_fprintf ((file), "\n%LLM%d:\n", sym_lineno); \ + sym_lineno += 1; \ + } \ +while (0) + +#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END +#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \ +do { \ + text_section (); \ + fprintf ((FILE), "\t.stabs \"\",%d,0,0,Letext\nLetext:\n", N_SO); \ +} while (0) + +/* Arrange to call __main, rather than using crtbegin.o and crtend.o + and relying on .init and .fini being executed at appropriate times. */ +#undef INIT_SECTION_ASM_OP +#undef FINI_SECTION_ASM_OP +#undef STARTFILE_SPEC +#undef ENDFILE_SPEC + +/* HANDLE_SYSV_PRAGMA (defined by svr4.h) takes precedence over HANDLE_PRAGMA. + We want to use the HANDLE_PRAGMA from sh.h. */ +#undef HANDLE_SYSV_PRAGMA |