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Diffstat (limited to 'gcc-4.2.1/gcc/config/arm/bpabi.h')
| -rw-r--r-- | gcc-4.2.1/gcc/config/arm/bpabi.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gcc-4.2.1/gcc/config/arm/bpabi.h b/gcc-4.2.1/gcc/config/arm/bpabi.h new file mode 100644 index 000000000..a4287292f --- /dev/null +++ b/gcc-4.2.1/gcc/config/arm/bpabi.h @@ -0,0 +1,121 @@ +/* Configuration file for ARM BPABI targets. + Copyright (C) 2004, 2005 + 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 2, 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. + + 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, 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. */ + +/* 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. */ +#define TARGET_UNWIND_INFO 1 + +/* Section 4.1 of the AAPCS requires the use of VFP format. */ +#undef FPUTYPE_DEFAULT +#define FPUTYPE_DEFAULT FPUTYPE_VFP + +/* EABI targets should enable interworking by default. */ +#undef TARGET_DEFAULT +#define TARGET_DEFAULT MASK_INTERWORK + +/* 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 + +/* 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=4}" + +/* 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" + +#undef LINK_SPEC +#define LINK_SPEC BPABI_LINK_SPEC + +#if defined (__thumb__) +#define RENAME_LIBRARY_SET ".thumb_set" +#else +#define RENAME_LIBRARY_SET ".set" +#endif + +/* Make __aeabi_AEABI_NAME an alias for __GCC_NAME. */ +#define RENAME_LIBRARY(GCC_NAME, AEABI_NAME) \ + __asm__ (".globl\t__aeabi_" #AEABI_NAME "\n" \ + RENAME_LIBRARY_SET "\t__aeabi_" #AEABI_NAME \ + ", __" #GCC_NAME "\n"); + +/* Give some libgcc functions an additional __aeabi name. */ +#ifdef L_muldi3 +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul) +#endif +#ifdef L_muldi3 +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (muldi3, lmul) +#endif +#ifdef L_fixdfdi +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixdfdi, d2lz) +#endif +#ifdef L_fixunsdfdi +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunsdfdi, d2ulz) +#endif +#ifdef L_fixsfdi +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixsfdi, f2lz) +#endif +#ifdef L_fixunssfdi +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (fixunssfdi, f2ulz) +#endif +#ifdef L_floatdidf +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdidf, l2d) +#endif +#ifdef L_floatdisf +#define DECLARE_LIBRARY_RENAMES RENAME_LIBRARY (floatdisf, l2f) +#endif + +/* 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_MERGED_TYPEINFO_NAMES=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 |