1 /* Configuration file for ARM BPABI targets.
2 Copyright (C) 2004, 2005, 2007, 2008
3 Free Software Foundation, Inc.
4 Contributed by CodeSourcery, LLC
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published
10 by the Free Software Foundation; either version 3, or (at your
11 option) any later version.
13 GCC is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16 License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
22 /* Use the AAPCS ABI by default. */
23 #define ARM_DEFAULT_ABI ARM_ABI_AAPCS
25 /* Assume that AAPCS ABIs should adhere to the full BPABI. */
26 #define TARGET_BPABI (TARGET_AAPCS_BASED)
28 /* BPABI targets use EABI frame unwinding tables. */
29 #define TARGET_UNWIND_INFO 1
31 /* Section 4.1 of the AAPCS requires the use of VFP format. */
32 #undef FPUTYPE_DEFAULT
33 #define FPUTYPE_DEFAULT FPUTYPE_VFP
35 /* TARGET_BIG_ENDIAN_DEFAULT is set in
36 config.gcc for big endian configurations. */
37 #if TARGET_BIG_ENDIAN_DEFAULT
38 #define TARGET_ENDIAN_DEFAULT MASK_BIG_END
40 #define TARGET_ENDIAN_DEFAULT 0
43 /* EABI targets should enable interworking by default. */
45 #define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT)
47 /* The ARM BPABI functions return a boolean; they use no special
48 calling convention. */
49 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) TARGET_BPABI
51 /* The BPABI integer comparison routines return { -1, 0, 1 }. */
52 #define TARGET_LIB_INT_CMP_BIASED !TARGET_BPABI
54 /* Tell the assembler to build BPABI binaries. */
55 #undef SUBTARGET_EXTRA_ASM_SPEC
56 #define SUBTARGET_EXTRA_ASM_SPEC "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=4}"
58 #ifndef SUBTARGET_EXTRA_LINK_SPEC
59 #define SUBTARGET_EXTRA_LINK_SPEC ""
62 #define ANDROID_LINK_SPEC \
65 "%{shared: -Bsymbolic} " \
67 "%{rdynamic:-export-dynamic} " \
68 "%{!dynamic-linker:-dynamic-linker /system/bin/linker}}}} "
70 /* The generic link spec in elf.h does not support shared libraries. */
72 #define LINK_SPEC "%{mbig-endian:-EB} %{mlittle-endian:-EL} " \
73 "%{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} " \
75 "-X" SUBTARGET_EXTRA_LINK_SPEC
77 #if defined (__thumb__)
78 #define RENAME_LIBRARY_SET ".thumb_set"
80 #define RENAME_LIBRARY_SET ".set"
83 /* Make __aeabi_AEABI_NAME an alias for __GCC_NAME. */
84 #define RENAME_LIBRARY(GCC_NAME, AEABI_NAME) \
85 __asm__ (".globl\t__aeabi_" #AEABI_NAME "\n" \
86 RENAME_LIBRARY_SET "\t__aeabi_" #AEABI_NAME \
87 ", __" #GCC_NAME "\n");
89 /* Give some libgcc functions an additional __aeabi name. */
91 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
94 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul)
97 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixdfdi, d2lz)
100 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfdi, d2ulz)
103 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixsfdi, f2lz)
106 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfdi, f2ulz)
109 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdidf, l2d)
112 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdisf, l2f)
115 /* These renames are needed on ARMv6M. Other targets get them from
116 assembly routines. */
118 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfsi, d2uiz)
121 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfsi, f2uiz)
124 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundidf, ul2d)
127 #define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatundisf, ul2f)
130 /* The BPABI requires that we always use an out-of-line implementation
131 of RTTI comparison, even if the target supports weak symbols,
132 because the same object file might be used on a target that does
133 not support merging symbols across DLL boundaries. This macro is
134 broken out separately so that it can be used within
135 TARGET_OS_CPP_BUILTINS in configuration files for systems based on
137 #define TARGET_BPABI_CPP_BUILTINS() \
140 builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0"); \
141 if (TARGET_ANDROID) \
142 builtin_define ("__ANDROID__"); \
146 #undef TARGET_OS_CPP_BUILTINS
147 #define TARGET_OS_CPP_BUILTINS() \
148 TARGET_BPABI_CPP_BUILTINS()
150 /* The BPABI specifies the use of .{init,fini}_array. Therefore, we
151 do not want GCC to put anything into the .{init,fini} sections. */
152 #undef INIT_SECTION_ASM_OP
153 #undef FINI_SECTION_ASM_OP
154 #define INIT_ARRAY_SECTION_ASM_OP ARM_EABI_CTORS_SECTION_OP
155 #define FINI_ARRAY_SECTION_ASM_OP ARM_EABI_DTORS_SECTION_OP
157 /* Android uses -fno-rtti and -fno-exceptions by default. */
160 #define CC1_SPEC "%{mandroid:%{!fexceptions:-fno-exceptions}}"
163 #define CC1PLUS_SPEC "%{mandroid:%{!frtti:-fno-rtti}}"
165 /* Startfile and endfile specs are the same as unknown-elf.h except
170 "%{!mandroid:%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}} " \
171 "%{mandroid:-lc %{!static:-ldl}}"
173 #undef STARTFILE_SPEC
174 #define STARTFILE_SPEC \
175 "%{!mandroid:crti%O%s crtbegin%O%s crt0%O%s} " \
178 "%{static:crtbegin_static%O%s} " \
179 "%{!static:crtbegin_dynamic%O%s}}}"
182 #define ENDFILE_SPEC \
183 "%{!mandroid:crtend%O%s crtn%O%s} "\
185 "%{!shared:crtend%O%s}}"