+++ /dev/null
-/* Definitions of target machine for GNU compiler, for Advanced RISC Machines
- ARM compilation, AOF Assembler.
- Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc.
- Contributed by Richard Earnshaw (rearnsha@armltd.co.uk)
-
-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. */
-
-\f
-
-#define AOF_ASSEMBLER
-
-#define LINK_LIBGCC_SPECIAL 1
-
-#define LINK_SPEC "%{aof} %{bin} %{aif} %{ihf} %{shl,*} %{reent*} %{split} \
- %{ov*,*} %{reloc*} -nodebug"
-
-#define STARTFILE_SPEC "crtbegin.o%s"
-
-#define ENDFILE_SPEC "crtend.o%s"
-
-#ifndef ASM_SPEC
-#define ASM_SPEC "%{g -g} -arch 4 \
--apcs 3%{mapcs-32:/32bit}%{mapcs-26:/26bit}%{!mapcs-26:%{!macps-32:/26bit}}"
-#endif
-
-#ifndef LIB_SPEC
-#define LIB_SPEC "%{Eb: armlib_h.32b%s}%{!Eb: armlib_h.32l%s}"
-#endif
-
-#define LIBGCC_SPEC "libgcc.a%s"
-
-/* Dividing the Output into Sections (Text, Data, ...) */
-/* AOF Assembler syntax is a nightmare when it comes to areas, since once
- we change from one area to another, we can't go back again. Instead,
- we must create a new area with the same attributes and add the new output
- to that. Unfortunately, there is nothing we can do here to guarantee that
- two areas with the same attributes will be linked adjacently in the
- resulting executable, so we have to be careful not to do pc-relative
- addressing across such boundaries. */
-#define TEXT_SECTION_ASM_OP aof_text_section ()
-
-#define SELECT_RTX_SECTION(MODE,RTX,ALIGN) text_section ();
-
-#define DATA_SECTION_ASM_OP aof_data_section ()
-
-#define EXTRA_SECTIONS in_zero_init, in_common
-
-#define EXTRA_SECTION_FUNCTIONS \
-ZERO_INIT_SECTION \
-COMMON_SECTION
-
-#define ZERO_INIT_SECTION \
-void \
-zero_init_section () \
-{ \
- static int zero_init_count = 1; \
- if (in_section != in_zero_init) \
- { \
- fprintf (asm_out_file, "\tAREA |C$$zidata%d|,NOINIT\n", \
- zero_init_count++); \
- in_section = in_zero_init; \
- } \
-}
-
-/* Used by ASM_OUTPUT_COMMON (below) to tell varasm.c that we've
- changed areas. */
-#define COMMON_SECTION \
-void \
-common_section () \
-{ \
- if (in_section != in_common) \
- { \
- in_section = in_common; \
- } \
-}
-#define CTOR_LIST_BEGIN \
-asm (CTORS_SECTION_ASM_OP); \
-extern func_ptr __CTOR_END__[1]; \
-func_ptr __CTOR_LIST__[1] = {__CTOR_END__};
-
-#define CTOR_LIST_END \
-asm (CTORS_SECTION_ASM_OP); \
-func_ptr __CTOR_END__[1] = { (func_ptr) 0 };
-
-#define DO_GLOBAL_CTORS_BODY \
-do { \
- func_ptr *ptr = __CTOR_LIST__ + 1; \
- while (*ptr) \
- (*ptr++) (); \
-} while (0)
-
-#define DTOR_LIST_BEGIN \
-asm (DTORS_SECTION_ASM_OP); \
-extern func_ptr __DTOR_END__[1]; \
-func_ptr __DTOR_LIST__[1] = {__DTOR_END__};
-
-#define DTOR_LIST_END \
-asm (DTORS_SECTION_ASM_OP); \
-func_ptr __DTOR_END__[1] = { (func_ptr) 0 };
-
-#define DO_GLOBAL_DTORS_BODY \
-do { \
- func_ptr *ptr = __DTOR_LIST__ + 1; \
- while (*ptr) \
- (*ptr++) (); \
-} while (0)
-
-/* We really want to put Thumb tables in a read-only data section, but
- switching to another section during function output is not
- possible. We could however do what the SPARC does and defer the
- whole table generation until the end of the function. */
-#define JUMP_TABLES_IN_TEXT_SECTION 1
-
-#ifndef ARM_OS_NAME
-#define ARM_OS_NAME "(generic)"
-#endif
-
-/* For the AOF linker, we need to reference __main to force the standard
- library to get linked in. */
-
-#define ASM_FILE_START(STREAM) \
-{ \
- fprintf ((STREAM), "%s Generated by gcc %s for ARM/%s\n", \
- ASM_COMMENT_START, version_string, ARM_OS_NAME); \
- fprintf ((STREAM), "__r0\tRN\t0\n"); \
- fprintf ((STREAM), "__a1\tRN\t0\n"); \
- fprintf ((STREAM), "__a2\tRN\t1\n"); \
- fprintf ((STREAM), "__a3\tRN\t2\n"); \
- fprintf ((STREAM), "__a4\tRN\t3\n"); \
- fprintf ((STREAM), "__v1\tRN\t4\n"); \
- fprintf ((STREAM), "__v2\tRN\t5\n"); \
- fprintf ((STREAM), "__v3\tRN\t6\n"); \
- fprintf ((STREAM), "__v4\tRN\t7\n"); \
- fprintf ((STREAM), "__v5\tRN\t8\n"); \
- fprintf ((STREAM), "__v6\tRN\t9\n"); \
- fprintf ((STREAM), "__sl\tRN\t10\n"); \
- fprintf ((STREAM), "__fp\tRN\t11\n"); \
- fprintf ((STREAM), "__ip\tRN\t12\n"); \
- fprintf ((STREAM), "__sp\tRN\t13\n"); \
- fprintf ((STREAM), "__lr\tRN\t14\n"); \
- fprintf ((STREAM), "__pc\tRN\t15\n"); \
- fprintf ((STREAM), "__f0\tFN\t0\n"); \
- fprintf ((STREAM), "__f1\tFN\t1\n"); \
- fprintf ((STREAM), "__f2\tFN\t2\n"); \
- fprintf ((STREAM), "__f3\tFN\t3\n"); \
- fprintf ((STREAM), "__f4\tFN\t4\n"); \
- fprintf ((STREAM), "__f5\tFN\t5\n"); \
- fprintf ((STREAM), "__f6\tFN\t6\n"); \
- fprintf ((STREAM), "__f7\tFN\t7\n"); \
- text_section (); \
-}
-
-/* Some systems use __main in a way incompatible with its use in gcc, in these
- cases use the macros NAME__MAIN to give a quoted symbol and SYMBOL__MAIN to
- give the same symbol without quotes for an alternative entry point. You
- must define both, or neither. */
-#define NAME__MAIN "__gccmain"
-#define SYMBOL__MAIN __gccmain
-
-#define ASM_FILE_END(STREAM) \
-do \
-{ \
- if (flag_pic) \
- aof_dump_pic_table (STREAM); \
- aof_dump_imports (STREAM); \
- fputs ("\tEND\n", (STREAM)); \
-} while (0);
-
-#define ASM_COMMENT_START ";"
-
-#define ASM_APP_ON ""
-
-#define ASM_APP_OFF ""
-
-#define ASM_OUTPUT_ASCII(STREAM,PTR,LEN) \
-{ \
- int i; \
- const char *ptr = (PTR); \
- fprintf ((STREAM), "\tDCB"); \
- for (i = 0; i < (long)(LEN); i++) \
- fprintf ((STREAM), " &%02x%s", \
- (unsigned ) *(ptr++), \
- (i + 1 < (long)(LEN) \
- ? ((i & 3) == 3 ? "\n\tDCB" : ",") \
- : "\n")); \
-}
-
-#define IS_ASM_LOGICAL_LINE_SEPARATOR(C) ((C) == '\n')
-
-/* Output of Uninitialized Variables */
-
-#define ASM_OUTPUT_COMMON(STREAM,NAME,SIZE,ROUNDED) \
- (common_section (), \
- fprintf ((STREAM), "\tAREA "), \
- assemble_name ((STREAM), (NAME)), \
- fprintf ((STREAM), ", DATA, COMMON\n\t%% %d\t%s size=%d\n", \
- (ROUNDED), ASM_COMMENT_START, SIZE))
-
-#define ASM_OUTPUT_LOCAL(STREAM,NAME,SIZE,ROUNDED) \
- (zero_init_section (), \
- assemble_name ((STREAM), (NAME)), \
- fprintf ((STREAM), "\n"), \
- fprintf ((STREAM), "\t%% %d\t%s size=%d\n", \
- (ROUNDED), ASM_COMMENT_START, SIZE))
-
-/* Output and Generation of Labels */
-
-extern int arm_main_function;
-
-#define ASM_GLOBALIZE_LABEL(STREAM,NAME) \
-do { \
- fprintf ((STREAM), "\tEXPORT\t"); \
- assemble_name ((STREAM), (NAME)); \
- fputc ('\n', (STREAM)); \
- if ((NAME)[0] == 'm' && ! strcmp ((NAME), "main")) \
- arm_main_function = 1; \
-} while (0)
-
-#define ASM_OUTPUT_LABEL(STREAM,NAME) \
-do { \
- assemble_name (STREAM,NAME); \
- fputs ("\n", STREAM); \
-} while (0)
-
-#define ASM_DECLARE_FUNCTION_NAME(STREAM,NAME,DECL) \
-{ \
- if (TARGET_POKE_FUNCTION_NAME) \
- arm_poke_function_name ((STREAM), (NAME)); \
- ASM_OUTPUT_LABEL (STREAM, NAME); \
- if (! TREE_PUBLIC (DECL)) \
- { \
- fputs ("\tKEEP ", STREAM); \
- ASM_OUTPUT_LABEL (STREAM, NAME); \
- } \
- aof_delete_import ((NAME)); \
-}
-
-#define ASM_DECLARE_OBJECT_NAME(STREAM,NAME,DECL) \
-{ \
- ASM_OUTPUT_LABEL (STREAM, NAME); \
- if (! TREE_PUBLIC (DECL)) \
- { \
- fputs ("\tKEEP ", STREAM); \
- ASM_OUTPUT_LABEL (STREAM, NAME); \
- } \
- aof_delete_import ((NAME)); \
-}
-
-#define ASM_OUTPUT_EXTERNAL(STREAM,DECL,NAME) \
- aof_add_import ((NAME))
-
-#define ASM_OUTPUT_EXTERNAL_LIBCALL(STREAM,SYMREF) \
- (fprintf ((STREAM), "\tIMPORT\t"), \
- assemble_name ((STREAM), XSTR ((SYMREF), 0)), \
- fputc ('\n', (STREAM)))
-
-#define ASM_OUTPUT_LABELREF(STREAM,NAME) \
- fprintf ((STREAM), "|%s|", NAME)
-
-#define ASM_GENERATE_INTERNAL_LABEL(STRING,PREFIX,NUM) \
- sprintf ((STRING), "*|%s..%ld|", (PREFIX), (long)(NUM))
-
-#define ASM_FORMAT_PRIVATE_NAME(OUTVAR,NAME,NUMBER) \
- ((OUTVAR) = (char *) alloca (strlen ((NAME)) + 10), \
- sprintf ((OUTVAR), "%s.%d", (NAME), (NUMBER)))
-
-/* How initialization functions are handled */
-
-#define CTORS_SECTION_ASM_OP "\tAREA\t|C$$gnu_ctorsvec|, DATA, READONLY"
-#define DTORS_SECTION_ASM_OP "\tAREA\t|C$$gnu_dtorsvec|, DATA, READONLY"
-
-/* Output of Assembler Instructions */
-
-#define REGISTER_NAMES \
-{ \
- "a1", "a2", "a3", "a4", \
- "v1", "v2", "v3", "v4", \
- "v5", "v6", "sl", "fp", \
- "ip", "sp", "lr", "pc", \
- "f0", "f1", "f2", "f3", \
- "f4", "f5", "f6", "f7", \
- "cc", "sfp", "afp" \
-}
-
-#define ADDITIONAL_REGISTER_NAMES \
-{ \
- {"r0", 0}, {"a1", 0}, \
- {"r1", 1}, {"a2", 1}, \
- {"r2", 2}, {"a3", 2}, \
- {"r3", 3}, {"a4", 3}, \
- {"r4", 4}, {"v1", 4}, \
- {"r5", 5}, {"v2", 5}, \
- {"r6", 6}, {"v3", 6}, \
- {"r7", 7}, {"wr", 7}, \
- {"r8", 8}, {"v5", 8}, \
- {"r9", 9}, {"v6", 9}, \
- {"r10", 10}, {"sl", 10}, {"v7", 10}, \
- {"r11", 11}, {"fp", 11}, \
- {"r12", 12}, {"ip", 12}, \
- {"r13", 13}, {"sp", 13}, \
- {"r14", 14}, {"lr", 14}, \
- {"r15", 15}, {"pc", 15} \
-}
-
-#define REGISTER_PREFIX "__"
-#define USER_LABEL_PREFIX ""
-#define LOCAL_LABEL_PREFIX ""
-
-/* AOF does not prefix user function names with an underscore. */
-#define ARM_MCOUNT_NAME "_mcount"
-
-/* Output of Dispatch Tables */
-
-#define ASM_OUTPUT_ADDR_DIFF_ELT(STREAM,BODY,VALUE,REL) \
- do { \
- if (TARGET_ARM) \
- fprintf ((STREAM), "\tb\t|L..%d|\n", (VALUE)); \
- else \
- fprintf ((STREAM), "\tDCD\t|L..%d| - |L..%d|\n", (VALUE), (REL)); \
- } while (0)
-
-#define ASM_OUTPUT_ADDR_VEC_ELT(STREAM,VALUE) \
- fprintf ((STREAM), "\tDCD\t|L..%d|\n", (VALUE))
-
-/* A label marking the start of a jump table is a data label. */
-#define ASM_OUTPUT_CASE_LABEL(STREAM,PREFIX,NUM,TABLE) \
- fprintf ((STREAM), "\tALIGN\n|%s..%d|\n", (PREFIX), (NUM))
-
-/* Assembler Commands for Alignment */
-
-#define ASM_OUTPUT_SKIP(STREAM,NBYTES) \
- fprintf ((STREAM), "\t%%\t%d\n", (NBYTES))
-
-#define ASM_OUTPUT_ALIGN(STREAM,POWER) \
-do { \
- register int amount = 1 << (POWER); \
- if (amount == 2) \
- fprintf ((STREAM), "\tALIGN 2\n"); \
- else if (amount == 4) \
- fprintf ((STREAM), "\tALIGN\n"); \
- else \
- fprintf ((STREAM), "\tALIGN %d\n", amount); \
-} while (0)
-
-#undef DBX_DEBUGGING_INFO
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