/* Configuration file for ARM BPABI targets. Copyright (C) 2004-2014 Free Software Foundation, Inc. Contributed by CodeSourcery, LLC 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. 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 . */ /* Use the AAPCS ABI by default. */ #define ARM_DEFAULT_ABI ARM_ABI_AAPCS /* Assume that AAPCS ABIs should adhere to the full BPABI. */ #define TARGET_BPABI (TARGET_AAPCS_BASED) /* BPABI targets use EABI frame unwinding tables. */ #undef ARM_UNWIND_INFO #define ARM_UNWIND_INFO 1 /* Section 4.1 of the AAPCS requires the use of VFP format. */ #undef FPUTYPE_DEFAULT #define FPUTYPE_DEFAULT "vfp" /* TARGET_BIG_ENDIAN_DEFAULT is set in config.gcc for big endian configurations. */ #if TARGET_BIG_ENDIAN_DEFAULT #define TARGET_ENDIAN_DEFAULT MASK_BIG_END #else #define TARGET_ENDIAN_DEFAULT 0 #endif /* EABI targets should enable interworking by default. */ #undef TARGET_DEFAULT #define TARGET_DEFAULT (MASK_INTERWORK | TARGET_ENDIAN_DEFAULT) /* The ARM BPABI functions return a boolean; they use no special calling convention. */ #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) TARGET_BPABI /* The BPABI integer comparison routines return { -1, 0, 1 }. */ #define TARGET_LIB_INT_CMP_BIASED !TARGET_BPABI #define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\ "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}" #if TARGET_BIG_ENDIAN_DEFAULT #define BE8_LINK_SPEC \ " %{!mlittle-endian:%{march=armv7-a|mcpu=cortex-a5 \ |mcpu=cortex-a7 \ |mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15 \ |mcpu=cortex-a12 \ |mcpu=cortex-a15.cortex-a7 \ |mcpu=marvell-pj4 \ |mcpu=cortex-a53 \ |mcpu=cortex-a57 \ |mcpu=cortex-a57.cortex-a53 \ |mcpu=generic-armv7-a \ |march=armv7ve \ |march=armv7-m|mcpu=cortex-m3 \ |march=armv7e-m|mcpu=cortex-m4 \ |march=armv6-m|mcpu=cortex-m0 \ |march=armv8-a \ :%{!r:--be8}}}" #else #define BE8_LINK_SPEC \ " %{mbig-endian:%{march=armv7-a|mcpu=cortex-a5 \ |mcpu=cortex-a7 \ |mcpu=cortex-a8|mcpu=cortex-a9|mcpu=cortex-a15 \ |mcpu=cortex-a12 \ |mcpu=cortex-a15.cortex-a7 \ |mcpu=cortex-a53 \ |mcpu=cortex-a57 \ |mcpu=cortex-a57.cortex-a53 \ |mcpu=marvell-pj4 \ |mcpu=generic-armv7-a \ |march=armv7ve \ |march=armv7-m|mcpu=cortex-m3 \ |march=armv7e-m|mcpu=cortex-m4 \ |march=armv6-m|mcpu=cortex-m0 \ |march=armv8-a \ :%{!r:--be8}}}" #endif /* Tell the assembler to build BPABI binaries. */ #undef SUBTARGET_EXTRA_ASM_SPEC #define SUBTARGET_EXTRA_ASM_SPEC \ "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5}" TARGET_FIX_V4BX_SPEC #ifndef SUBTARGET_EXTRA_LINK_SPEC #define SUBTARGET_EXTRA_LINK_SPEC "" #endif /* Split out the EABI common values so other targets can use it. */ #define EABI_LINK_SPEC \ TARGET_FIX_V4BX_SPEC BE8_LINK_SPEC /* The generic link spec in elf.h does not support shared libraries. */ #define BPABI_LINK_SPEC \ "%{mbig-endian:-EB} %{mlittle-endian:-EL} " \ "%{static:-Bstatic} %{shared:-shared} %{symbolic:-Bsymbolic} " \ "-X" SUBTARGET_EXTRA_LINK_SPEC EABI_LINK_SPEC #undef LINK_SPEC #define LINK_SPEC BPABI_LINK_SPEC /* The BPABI requires that we always use an out-of-line implementation of RTTI comparison, even if the target supports weak symbols, because the same object file might be used on a target that does not support merging symbols across DLL boundaries. This macro is broken out separately so that it can be used within TARGET_OS_CPP_BUILTINS in configuration files for systems based on the BPABI. */ #define TARGET_BPABI_CPP_BUILTINS() \ do \ { \ builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0"); \ } \ while (false) #undef TARGET_OS_CPP_BUILTINS #define TARGET_OS_CPP_BUILTINS() \ TARGET_BPABI_CPP_BUILTINS() /* The BPABI specifies the use of .{init,fini}_array. Therefore, we do not want GCC to put anything into the .{init,fini} sections. */ #undef INIT_SECTION_ASM_OP #undef FINI_SECTION_ASM_OP #define INIT_ARRAY_SECTION_ASM_OP ARM_EABI_CTORS_SECTION_OP #define FINI_ARRAY_SECTION_ASM_OP ARM_EABI_DTORS_SECTION_OP /* The legacy _mcount implementation assumes r11 points to a 4-word APCS frame. This is generally not true for EABI targets, particularly not in Thumb mode. We assume the mcount implementation does not require a counter variable (No Counter). Note that __gnu_mcount_nc will be entered with a misaligned stack. This is OK because it uses a special calling convention anyway. */ #undef NO_PROFILE_COUNTERS #define NO_PROFILE_COUNTERS 1 #undef ARM_FUNCTION_PROFILER #define ARM_FUNCTION_PROFILER(STREAM, LABELNO) \ { \ fprintf (STREAM, "\tpush\t{lr}\n"); \ fprintf (STREAM, "\tbl\t__gnu_mcount_nc\n"); \ } #undef SUBTARGET_FRAME_POINTER_REQUIRED #define SUBTARGET_FRAME_POINTER_REQUIRED 0 /* __gnu_mcount_nc restores the original LR value before returning. Ensure that there is no unnecessary hook set up. */ #undef PROFILE_HOOK