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jeremybenn |
/* Definitions for non-Linux based ARM systems using ELF
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Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2010,
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2011 Free Software Foundation, Inc.
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Contributed by Catherine Moore <clm@cygnus.com>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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/* elfos.h should have already been included. Now just override
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any conflicting definitions and add any extras. */
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/* Run-time Target Specification. */
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/* Default to using software floating point. */
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#ifndef TARGET_DEFAULT
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#define TARGET_DEFAULT (0)
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#endif
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/* Now we define the strings used to build the spec file. */
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#define UNKNOWN_ELF_STARTFILE_SPEC " crti%O%s crtbegin%O%s crt0%O%s"
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC UNKNOWN_ELF_STARTFILE_SPEC
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#define UNKNOWN_ELF_ENDFILE_SPEC "crtend%O%s crtn%O%s"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC UNKNOWN_ELF_ENDFILE_SPEC
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/* The __USES_INITFINI__ define is tested in newlib/libc/sys/arm/crt0.S
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to see if it needs to invoked _init() and _fini(). */
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#undef SUBTARGET_CPP_SPEC
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#define SUBTARGET_CPP_SPEC "-D__USES_INITFINI__"
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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/* Return a nonzero value if DECL has a section attribute. */
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#define IN_NAMED_SECTION_P(DECL) \
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((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \
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&& DECL_SECTION_NAME (DECL) != NULL_TREE)
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#undef ASM_OUTPUT_ALIGNED_BSS
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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do \
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{ \
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if (IN_NAMED_SECTION_P (DECL)) \
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switch_to_section (get_named_section (DECL, NULL, 0)); \
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else \
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switch_to_section (bss_section); \
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\
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ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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\
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last_assemble_variable_decl = DECL; \
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ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
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ASM_OUTPUT_SKIP (FILE, SIZE ? (int)(SIZE) : 1); \
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} \
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while (0)
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#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
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#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
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do \
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{ \
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if ((DECL) != NULL && IN_NAMED_SECTION_P (DECL)) \
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switch_to_section (get_named_section (DECL, NULL, 0)); \
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else \
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switch_to_section (bss_section); \
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\
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ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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ASM_OUTPUT_LABEL (FILE, NAME); \
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fprintf (FILE, "\t.space\t%d\n", SIZE ? (int)(SIZE) : 1); \
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} \
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while (0)
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#ifndef SUBTARGET_CPU_DEFAULT
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm7tdmi
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#endif
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/* The libgcc udivmod functions may throw exceptions. If newlib is
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configured to support long longs in I/O, then printf will depend on
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udivmoddi4, which will depend on the exception unwind routines,
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which will depend on abort, which is defined in libc. */
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#undef LINK_GCC_C_SEQUENCE_SPEC
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#define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %L --end-group"
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