| /* Definitions of target machine for GNU compiler. |
| For ARM with ELF obj format. |
| Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001 |
| Free Software Foundation, Inc. |
| Contributed by Philip Blundell <philb@gnu.org> and |
| Catherine Moore <clm@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. */ |
| |
| #ifndef OBJECT_FORMAT_ELF |
| #error elf.h included before elfos.h |
| #endif |
| |
| #ifndef LOCAL_LABEL_PREFIX |
| #define LOCAL_LABEL_PREFIX "." |
| #endif |
| |
| #ifndef SUBTARGET_CPP_SPEC |
| #define SUBTARGET_CPP_SPEC "-D__ELF__" |
| #endif |
| |
| #ifndef SUBTARGET_EXTRA_SPECS |
| #define SUBTARGET_EXTRA_SPECS \ |
| { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, |
| #endif |
| |
| #ifndef SUBTARGET_EXTRA_ASM_SPEC |
| #define SUBTARGET_EXTRA_ASM_SPEC "" |
| #endif |
| |
| #ifndef ASM_SPEC |
| #define ASM_SPEC "\ |
| %{mbig-endian:-EB} \ |
| %{mcpu=*:-m%*} \ |
| %{march=*:-m%*} \ |
| %{mapcs-*:-mapcs-%*} \ |
| %{mapcs-float:-mfloat} \ |
| %{msoft-float:-mno-fpu} \ |
| %{mthumb-interwork:-mthumb-interwork} \ |
| %(subtarget_extra_asm_spec)" |
| #endif |
| |
| /* The ARM uses @ are a comment character so we need to redefine |
| TYPE_OPERAND_FMT. */ |
| #undef TYPE_OPERAND_FMT |
| #define TYPE_OPERAND_FMT "%s" |
| |
| /* We might need a ARM specific header to function declarations. */ |
| #undef ASM_DECLARE_FUNCTION_NAME |
| #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ |
| do \ |
| { \ |
| ARM_DECLARE_FUNCTION_NAME (FILE, NAME, DECL); \ |
| fprintf (FILE, "%s", TYPE_ASM_OP); \ |
| assemble_name (FILE, NAME); \ |
| putc (',', FILE); \ |
| fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ |
| putc ('\n', FILE); \ |
| ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ |
| ASM_OUTPUT_LABEL(FILE, NAME); \ |
| } \ |
| while (0) |
| |
| /* We might need an ARM specific trailer for function declarations. */ |
| #undef ASM_DECLARE_FUNCTION_SIZE |
| #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ |
| do \ |
| { \ |
| ARM_DECLARE_FUNCTION_SIZE (FILE, FNAME, DECL); \ |
| if (!flag_inhibit_size_directive) \ |
| { \ |
| char label[256]; \ |
| static int labelno; \ |
| labelno ++; \ |
| ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \ |
| ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \ |
| fprintf (FILE, "%s", SIZE_ASM_OP); \ |
| assemble_name (FILE, (FNAME)); \ |
| fprintf (FILE, ","); \ |
| assemble_name (FILE, label); \ |
| fprintf (FILE, "-"); \ |
| assemble_name (FILE, (FNAME)); \ |
| putc ('\n', FILE); \ |
| } \ |
| } \ |
| while (0) |
| |
| /* Define this macro if jump tables (for `tablejump' insns) should be |
| output in the text section, along with the assembler instructions. |
| Otherwise, the readonly data section is used. */ |
| #define JUMP_TABLES_IN_TEXT_SECTION 1 |
| |
| #ifndef LINK_SPEC |
| #define LINK_SPEC "%{mbig-endian:-EB} -X" |
| #endif |
| |
| /* Run-time Target Specification. */ |
| #ifndef TARGET_VERSION |
| #define TARGET_VERSION fputs (" (ARM/elf)", stderr) |
| #endif |
| |
| #ifndef TARGET_DEFAULT |
| #define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME) |
| #endif |
| |
| #ifndef MULTILIB_DEFAULTS |
| #define MULTILIB_DEFAULTS \ |
| { "marm", "mlittle-endian", "msoft-float", "mapcs-32", "mno-thumb-interwork", "fno-leading-underscore" } |
| #endif |
| |
| |
| /* This outputs a lot of .req's to define alias for various registers. |
| Let's try to avoid this. */ |
| #ifndef ASM_FILE_START |
| #define ASM_FILE_START(STREAM) \ |
| do \ |
| { \ |
| fprintf (STREAM, "%s Generated by gcc %s for ARM/elf\n", \ |
| ASM_COMMENT_START, version_string); \ |
| output_file_directive (STREAM, main_input_filename); \ |
| fprintf (STREAM, ASM_APP_OFF); \ |
| } \ |
| while (0) |
| #endif |
| |
| /* Output an internal label definition. */ |
| #undef ASM_OUTPUT_INTERNAL_LABEL |
| #define ASM_OUTPUT_INTERNAL_LABEL(STREAM, PREFIX, NUM) \ |
| do \ |
| { \ |
| char * s = (char *) alloca (40 + strlen (PREFIX)); \ |
| extern int arm_target_label, arm_ccfsm_state; \ |
| extern rtx arm_target_insn; \ |
| \ |
| if (arm_ccfsm_state == 3 && arm_target_label == (NUM) \ |
| && !strcmp (PREFIX, "L")) \ |
| { \ |
| arm_ccfsm_state = 0; \ |
| arm_target_insn = NULL; \ |
| } \ |
| ASM_GENERATE_INTERNAL_LABEL (s, (PREFIX), (NUM)); \ |
| ASM_OUTPUT_LABEL (STREAM, s); \ |
| } \ |
| while (0) |
| |
| #undef TARGET_ASM_NAMED_SECTION |
| #define TARGET_ASM_NAMED_SECTION arm_elf_asm_named_section |
| |
| #undef ASM_OUTPUT_ALIGNED_COMMON |
| #define ASM_OUTPUT_ALIGNED_COMMON(STREAM, NAME, SIZE, ALIGN) \ |
| do \ |
| { \ |
| fprintf (STREAM, "\t.comm\t"); \ |
| assemble_name (STREAM, NAME); \ |
| fprintf (STREAM, ", %d, %d\n", SIZE, ALIGN); \ |
| } \ |
| while (0) |
| |
| /* For PIC code we need to explicitly specify (PLT) and (GOT) relocs. */ |
| #define NEED_PLT_RELOC flag_pic |
| #define NEED_GOT_RELOC flag_pic |
| |
| /* The ELF assembler handles GOT addressing differently to NetBSD. */ |
| #define GOT_PCREL 0 |
| |
| /* Biggest alignment supported by the object file format of this |
| machine. Use this macro to limit the alignment which can be |
| specified using the `__attribute__ ((aligned (N)))' construct. If |
| not defined, the default value is `BIGGEST_ALIGNMENT'. */ |
| #define MAX_OFILE_ALIGNMENT (32768 * 8) |
| |
| /* Align output to a power of two. Note ".align 0" is redundant, |
| and also GAS will treat it as ".align 2" which we do not want. */ |
| #define ASM_OUTPUT_ALIGN(STREAM, POWER) \ |
| do \ |
| { \ |
| if ((POWER) > 0) \ |
| fprintf (STREAM, "\t.align\t%d\n", POWER); \ |
| } \ |
| while (0) |
| |
| #define SUPPORTS_INIT_PRIORITY 1 |