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- /* Definitions for non-Linux based ARM systems using ELF
- Copyright (C) 1998-2020 Free Software Foundation, Inc.
- Contributed by Catherine Moore <clm@cygnus.com>
-
- This file is part of GCC.
-
- GCC 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 3, or (at your
- option) any later version.
-
- GCC 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 GCC; see the file COPYING3. If not see
- <http://www.gnu.org/licenses/>. */
-
- /* elfos.h should have already been included. Now just override
- any conflicting definitions and add any extras. */
-
- /* Run-time Target Specification. */
-
- /* Default to using software floating point. */
- #ifndef TARGET_DEFAULT
- #define TARGET_DEFAULT (0)
- #endif
-
- /* Now we define the strings used to build the spec file. */
- #define UNKNOWN_ELF_STARTFILE_SPEC " crti%O%s crtbegin%O%s crt0%O%s"
-
- #undef STARTFILE_SPEC
- #define STARTFILE_SPEC \
- "%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} " \
- UNKNOWN_ELF_STARTFILE_SPEC
-
- #define UNKNOWN_ELF_ENDFILE_SPEC "crtend%O%s crtn%O%s"
-
- #undef ENDFILE_SPEC
- #define ENDFILE_SPEC UNKNOWN_ELF_ENDFILE_SPEC
-
- /* The __USES_INITFINI__ define is tested in newlib/libc/sys/arm/crt0.S
- to see if it needs to invoked _init() and _fini(). */
- #undef SUBTARGET_CPP_SPEC
- #define SUBTARGET_CPP_SPEC "-D__USES_INITFINI__"
-
- #undef PREFERRED_DEBUGGING_TYPE
- #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
-
- /* Return a nonzero value if DECL has a section attribute. */
- #define IN_NAMED_SECTION_P(DECL) \
- ((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \
- && DECL_SECTION_NAME (DECL) != NULL)
-
- #undef ASM_OUTPUT_ALIGNED_BSS
- #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
- do \
- { \
- if (IN_NAMED_SECTION_P (DECL)) \
- switch_to_section (get_named_section (DECL, NULL, 0)); \
- else \
- switch_to_section (bss_section); \
- \
- ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
- \
- last_assemble_variable_decl = DECL; \
- ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
- ASM_OUTPUT_SKIP (FILE, SIZE ? (int)(SIZE) : 1); \
- } \
- while (0)
-
- #undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
- #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
- do \
- { \
- if ((DECL) != NULL && IN_NAMED_SECTION_P (DECL)) \
- switch_to_section (get_named_section (DECL, NULL, 0)); \
- else \
- switch_to_section (bss_section); \
- \
- ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
- ASM_OUTPUT_LABEL (FILE, NAME); \
- fprintf (FILE, "\t.space\t%d\n", SIZE ? (int) SIZE : 1); \
- fprintf (FILE, "\t.size\t%s, %d\n", \
- NAME, SIZE ? (int) SIZE : 1); \
- } \
- while (0)
-
- /* The libgcc udivmod functions may throw exceptions. If newlib is
- configured to support long longs in I/O, then printf will depend on
- udivmoddi4, which will depend on the exception unwind routines,
- which will depend on abort, which is defined in libc. */
- #undef LINK_GCC_C_SEQUENCE_SPEC
- #define LINK_GCC_C_SEQUENCE_SPEC "--start-group %G %{!nolibc:%L} --end-group"
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