| /* 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* 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 |
