/* Definitions of target machine for GNU compiler.
For ARM with ELF obj format.
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2004
- Free Software Foundation, Inc.
+ Copyright (C) 1995-2020 Free Software Foundation, Inc.
Contributed by Philip Blundell <philb@gnu.org> and
Catherine Moore <clm@cygnus.com>
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 2, or (at your
+ 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
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 COPYING. If not, write to
- the Free Software Foundation, 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
#ifndef OBJECT_FORMAT_ELF
#error elf.h included before elfos.h
#ifndef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
{ "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
- { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC },
+ { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \
+ SUBSUBTARGET_EXTRA_SPECS
#endif
#ifndef SUBTARGET_EXTRA_ASM_SPEC
%{mapcs-float:-mfloat}"
#endif
+#undef SUBSUBTARGET_EXTRA_SPECS
+#define SUBSUBTARGET_EXTRA_SPECS
+
#ifndef ASM_SPEC
#define ASM_SPEC "\
%{mbig-endian:-EB} \
%{mlittle-endian:-EL} \
-%{mcpu=*:-mcpu=%*} \
-%{march=*:-march=%*} \
+%(asm_cpu_spec) \
%{mapcs-*:-mapcs-%*} \
%(subtarget_asm_float_spec) \
%{mthumb-interwork:-mthumb-interwork} \
-%{msoft-float:-mfloat-abi=soft} %{mhard-float:-mfloat-abi=hard} \
-%{mfloat-abi=*} %{mfpu=*} \
+%{mfloat-abi=*} %{!mfpu=auto: %{mfpu=*}} \
%(subtarget_extra_asm_spec)"
#endif
/* 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); \
- ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
- ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
- ASM_OUTPUT_LABEL(FILE, NAME); \
- } \
- while (0)
+#define ASM_DECLARE_FUNCTION_NAME arm_asm_declare_function_name
/* 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); \
+ ARM_OUTPUT_FN_UNWIND (FILE, FALSE); \
if (!flag_inhibit_size_directive) \
ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
} \
/* 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. */
-/* We put ARM jump tables in the text section, because it makes the code
- more efficient, but for Thumb it's better to put them out of band. */
-#define JUMP_TABLES_IN_TEXT_SECTION (TARGET_ARM)
+/* We put ARM and Thumb-2 jump tables in the text section, because it makes
+ the code more efficient, but for Thumb-1 it's better to put them out of
+ band unless we are generating compressed tables. */
+#define JUMP_TABLES_IN_TEXT_SECTION \
+ ((TARGET_32BIT || (TARGET_THUMB && (optimize_size || flag_pic))) \
+ && !target_pure_code)
#ifndef LINK_SPEC
#define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} -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_FRAME)
+#define TARGET_DEFAULT (MASK_APCS_FRAME)
#endif
-#ifndef MULTILIB_DEFAULTS
-#define MULTILIB_DEFAULTS \
- { "marm", "mlittle-endian", "msoft-float", "mno-thumb-interwork", "fno-leading-underscore" }
-#endif
\f
-#define TARGET_ASM_FILE_START_APP_OFF true
#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true
\f
+/* Output an element in the static constructor array. */
+#undef TARGET_ASM_CONSTRUCTOR
+#define TARGET_ASM_CONSTRUCTOR arm_elf_asm_constructor
+
+#undef TARGET_ASM_DESTRUCTOR
+#define TARGET_ASM_DESTRUCTOR arm_elf_asm_destructor
+
/* 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) \
} \
while (0)
-#define SUPPORTS_INIT_PRIORITY 1
+/* Horrible hack: We want to prevent some libgcc routines being included
+ for some multilibs. The condition should match the one in
+ libgcc/config/arm/lib1funcs.S and libgcc/config/arm/t-elf. */
+#if __ARM_ARCH_ISA_ARM || __ARM_ARCH_ISA_THUMB != 1
+#undef L_fixdfsi
+#undef L_fixunsdfsi
+#undef L_truncdfsf2
+#undef L_fixsfsi
+#undef L_fixunssfsi
+#undef L_floatdidf
+#undef L_floatdisf
+#undef L_floatundidf
+#undef L_floatundisf
+#endif
+
projects / thirdparty / gcc.git / blobdiff