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Diffstat (limited to 'contrib/gcc/config/arm/netbsd-elf.h')
| -rw-r--r-- | contrib/gcc/config/arm/netbsd-elf.h | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/contrib/gcc/config/arm/netbsd-elf.h b/contrib/gcc/config/arm/netbsd-elf.h deleted file mode 100644 index 8a01b0fcc8d8..000000000000 --- a/contrib/gcc/config/arm/netbsd-elf.h +++ /dev/null @@ -1,158 +0,0 @@ -/* Definitions of target machine for GNU compiler, NetBSD/arm ELF version. - Copyright (C) 2002, 2003, 2004, 2005 Free Software Foundation, Inc. - Contributed by Wasabi Systems, Inc. - - 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. */ - -/* Run-time Target Specification. */ -#undef TARGET_VERSION -#define TARGET_VERSION fputs (" (NetBSD/arm ELF)", stderr); - -/* arm.h defaults to ARM6 CPU. */ - -/* This defaults us to little-endian. */ -#ifndef TARGET_ENDIAN_DEFAULT -#define TARGET_ENDIAN_DEFAULT 0 -#endif - -#undef MULTILIB_DEFAULTS - -/* Default it to use ATPCS with soft-VFP. */ -#undef TARGET_DEFAULT -#define TARGET_DEFAULT \ - (MASK_APCS_FRAME \ - | TARGET_ENDIAN_DEFAULT) - -#undef ARM_DEFAULT_ABI -#define ARM_DEFAULT_ABI ARM_ABI_ATPCS - -#define TARGET_OS_CPP_BUILTINS() \ - do \ - { \ - NETBSD_OS_CPP_BUILTINS_ELF(); \ - } \ - while (0) - -#undef SUBTARGET_CPP_SPEC -#define SUBTARGET_CPP_SPEC NETBSD_CPP_SPEC - -#undef SUBTARGET_EXTRA_ASM_SPEC -#define SUBTARGET_EXTRA_ASM_SPEC \ - "-matpcs %{fpic|fpie:-k} %{fPIC|fPIE:-k}" - -/* Default to full VFP if -mhard-float is specified. */ -#undef SUBTARGET_ASM_FLOAT_SPEC -#define SUBTARGET_ASM_FLOAT_SPEC \ - "%{mhard-float:{!mfpu=*:-mfpu=vfp}} \ - %{mfloat-abi=hard:{!mfpu=*:-mfpu=vfp}}" - -#undef SUBTARGET_EXTRA_SPECS -#define SUBTARGET_EXTRA_SPECS \ - { "subtarget_extra_asm_spec", SUBTARGET_EXTRA_ASM_SPEC }, \ - { "subtarget_asm_float_spec", SUBTARGET_ASM_FLOAT_SPEC }, \ - { "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \ - { "netbsd_entry_point", NETBSD_ENTRY_POINT }, - -#define NETBSD_ENTRY_POINT "__start" - -#undef LINK_SPEC -#define LINK_SPEC \ - "-X %{mbig-endian:-EB} %{mlittle-endian:-EL} \ - %(netbsd_link_spec)" - -/* Make GCC agree with <machine/ansi.h>. */ - -#undef SIZE_TYPE -#define SIZE_TYPE "long unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "long int" - -/* We don't have any limit on the length as out debugger is GDB. */ -#undef DBX_CONTIN_LENGTH - -/* NetBSD does its profiling differently to the Acorn compiler. We - don't need a word following the mcount call; and to skip it - requires either an assembly stub or use of fomit-frame-pointer when - compiling the profiling functions. Since we break Acorn CC - compatibility below a little more won't hurt. */ - -#undef ARM_FUNCTION_PROFILER -#define ARM_FUNCTION_PROFILER(STREAM,LABELNO) \ -{ \ - asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n"); \ - asm_fprintf (STREAM, "\tbl\t__mcount%s\n", \ - (TARGET_ARM && NEED_PLT_RELOC) \ - ? "(PLT)" : ""); \ -} - -/* VERY BIG NOTE: Change of structure alignment for NetBSD/arm. - There are consequences you should be aware of... - - Normally GCC/arm uses a structure alignment of 32 for compatibility - with armcc. This means that structures are padded to a word - boundary. However this causes problems with bugged NetBSD kernel - code (possibly userland code as well - I have not checked every - binary). The nature of this bugged code is to rely on sizeof() - returning the correct size of various structures rounded to the - nearest byte (SCSI and ether code are two examples, the vm system - is another). This code breaks when the structure alignment is 32 - as sizeof() will report a word=rounded size. By changing the - structure alignment to 8. GCC will conform to what is expected by - NetBSD. - - This has several side effects that should be considered. - 1. Structures will only be aligned to the size of the largest member. - i.e. structures containing only bytes will be byte aligned. - structures containing shorts will be half word aligned. - structures containing ints will be word aligned. - - This means structures should be padded to a word boundary if - alignment of 32 is required for byte structures etc. - - 2. A potential performance penalty may exist if strings are no longer - word aligned. GCC will not be able to use word load/stores to copy - short strings. - - This modification is not encouraged but with the present state of the - NetBSD source tree it is currently the only solution that meets the - requirements. */ - -#undef DEFAULT_STRUCTURE_SIZE_BOUNDARY -#define DEFAULT_STRUCTURE_SIZE_BOUNDARY 8 - -/* Clear the instruction cache from `BEG' to `END'. This makes a - call to the ARM_SYNC_ICACHE architecture specific syscall. */ -#define CLEAR_INSN_CACHE(BEG, END) \ -do \ - { \ - extern int sysarch(int number, void *args); \ - struct \ - { \ - unsigned int addr; \ - int len; \ - } s; \ - s.addr = (unsigned int)(BEG); \ - s.len = (END) - (BEG); \ - (void) sysarch (0, &s); \ - } \ -while (0) - -#undef FPUTYPE_DEFAULT -#define FPUTYPE_DEFAULT FPUTYPE_VFP - |