1 /* Definitions for StrongARM running FreeBSD using the ELF format
2 Copyright (C) 2001, 2004 Free Software Foundation, Inc.
3 Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
9 by the Free Software Foundation; either version 2, or (at your
10 option) any later version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
22 #undef SUBTARGET_CPP_SPEC
23 #define SUBTARGET_CPP_SPEC FBSD_CPP_SPEC
25 #undef SUBTARGET_EXTRA_SPECS
26 #define SUBTARGET_EXTRA_SPECS \
27 { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \
28 { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \
29 { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }
31 #undef SUBTARGET_EXTRA_ASM_SPEC
32 #ifdef TARGET_ARM_EABI
33 #define SUBTARGET_EXTRA_ASM_SPEC \
34 "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=4} %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
36 #define SUBTARGET_EXTRA_ASM_SPEC \
37 "-matpcs %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
40 /* Default to full FPA if -mhard-float is specified. */
41 #undef SUBTARGET_ASM_FLOAT_SPEC
42 #define SUBTARGET_ASM_FLOAT_SPEC \
43 "%{mhard-float:-mfpu=fpa} \
44 %{mfloat-abi=hard:{!mfpu=*:-mfpu=fpa}} \
45 %{!mhard-float: %{msoft-float:-mfpu=softvfp;:-mfpu=softvfp}}"
49 %{p:%nconsider using `-pg' instead of `-p' with gprof(1) } \
51 %{assert*} %{R*} %{rpath*} %{defsym*} \
52 %{shared:-Bshareable %{h*} %{soname*}} \
55 %{rdynamic:-export-dynamic} \
56 %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
58 %{!static:--hash-style=both --enable-new-dtags} \
59 %{symbolic:-Bsymbolic} \
60 -X %{mbig-endian:-EB} %{mlittle-endian:-EL}"
62 /************************[ Target stuff ]***********************************/
65 #ifndef TARGET_ENDIAN_DEFAULT
66 #define TARGET_ENDIAN_DEFAULT 0
69 #ifdef TARGET_ARM_EABI
70 /* We default to a soft-float ABI so that binaries can run on all
72 #undef TARGET_DEFAULT_FLOAT_ABI
73 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
75 #undef ARM_DEFAULT_ABI
76 #define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
78 #undef TARGET_OS_CPP_BUILTINS
79 #define TARGET_OS_CPP_BUILTINS() \
82 FBSD_TARGET_OS_CPP_BUILTINS(); \
83 TARGET_BPABI_CPP_BUILTINS(); \
87 /* Default it to use ATPCS with soft-VFP. */
89 #define TARGET_DEFAULT \
91 | TARGET_ENDIAN_DEFAULT)
93 #undef ARM_DEFAULT_ABI
94 #define ARM_DEFAULT_ABI ARM_ABI_ATPCS
96 #undef FPUTYPE_DEFAULT
97 #define FPUTYPE_DEFAULT FPUTYPE_VFP
100 /* Define the actual types of some ANSI-mandated types.
101 Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
102 c-common.c, and config/<arch>/<arch>.h. */
104 /* arm.h gets this wrong for FreeBSD. We use the GCC defaults instead. */
107 #define SIZE_TYPE "unsigned int"
110 #define PTRDIFF_TYPE "int"
112 /* We use the GCC defaults here. */
115 #if defined(FREEBSD_ARCH_armv6)
116 #undef SUBTARGET_CPU_DEFAULT
117 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm1176jzs
118 #undef FBSD_TARGET_CPU_CPP_BUILTINS
119 #define FBSD_TARGET_CPU_CPP_BUILTINS() \
121 builtin_define ("__FreeBSD_ARCH_armv6__"); \
123 #undef TARGET_VERSION
124 #define TARGET_VERSION fprintf (stderr, " (FreeBSD/armv6 ELF)");
126 #undef SUBTARGET_CPU_DEFAULT
127 #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9
128 #undef TARGET_VERSION
129 #define TARGET_VERSION fprintf (stderr, " (FreeBSD/StrongARM ELF)");
132 /* FreeBSD does its profiling differently to the Acorn compiler. We
133 don't need a word following the mcount call; and to skip it
134 requires either an assembly stub or use of fomit-frame-pointer when
135 compiling the profiling functions. Since we break Acorn CC
136 compatibility below a little more won't hurt. */
138 #undef ARM_FUNCTION_PROFILER
139 #define ARM_FUNCTION_PROFILER(STREAM,LABELNO) \
141 asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n"); \
142 asm_fprintf (STREAM, "\tbl\t__mcount%s\n", \
143 (TARGET_ARM && NEED_PLT_RELOC) \
147 /* Clear the instruction cache from `BEG' to `END'. This makes a
148 call to the ARM_SYNC_ICACHE architecture specific syscall. */
149 #define CLEAR_INSN_CACHE(BEG, END) \
152 extern int sysarch(int number, void *args); \
158 s.addr = (unsigned int)(BEG); \
159 s.len = (END) - (BEG); \
160 (void) sysarch (0, &s); \