diff options
Diffstat (limited to 'gcc/config/arm/netbsd.h')
| -rwxr-xr-x | gcc/config/arm/netbsd.h | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/gcc/config/arm/netbsd.h b/gcc/config/arm/netbsd.h deleted file mode 100755 index 7b03d4a..0000000 --- a/gcc/config/arm/netbsd.h +++ /dev/null @@ -1,161 +0,0 @@ -/* NetBSD/arm (RiscBSD) version. - Copyright (C) 1993, 1994, 1997, 1998 Free Software Foundation, Inc. - Contributed by Mark Brinicombe (amb@physig.ph.kcl.ac.uk) - -This file is part of GNU CC. - -GNU CC 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. - -GNU CC 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 GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* Run-time Target Specification. */ -#define TARGET_VERSION fputs (" (ARM/NetBSD)", stderr); - -/* This is used in ASM_FILE_START. */ -#define ARM_OS_NAME "NetBSD" - -/* Unsigned chars produces much better code than signed. */ -#define DEFAULT_SIGNED_CHAR 0 - -/* Since we always use GAS as our assembler we support stabs. */ -#define DBX_DEBUGGING_INFO 1 - -/*#undef ASM_DECLARE_FUNCTION_NAME*/ - -/* ARM6 family default cpu. */ -#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm6 - -/* Default is to use APCS-32 mode. */ -#define TARGET_DEFAULT (ARM_FLAG_APCS_32 | ARM_FLAG_SOFT_FLOAT) - -#include "arm/aout.h" - -/* This gets redefined in config/netbsd.h. */ -#undef TARGET_MEM_FUNCTIONS - -#include <netbsd.h> - -/* Until they use ELF or something that handles dwarf2 unwinds - and initialization stuff better. */ -#undef DWARF2_UNWIND_INFO - -/* Some defines for CPP. - arm32 is the NetBSD port name, so we always define arm32 and __arm32__. */ -#undef CPP_PREDEFINES -#define CPP_PREDEFINES "\ --Dunix -Driscbsd -Darm32 -D__arm32__ -D__arm__ -D__NetBSD__ \ --Asystem(unix) -Asystem(NetBSD) -Acpu(arm) -Amachine(arm)" - -/* Define _POSIX_SOURCE if necessary. */ -#undef CPP_SPEC -#define CPP_SPEC "\ -%(cpp_cpu_arch) %(cpp_apcs_pc) %(cpp_float) %(cpp_endian) \ -%{posix:-D_POSIX_SOURCE} \ -" - -/* Because TARGET_DEFAULT sets ARM_FLAG_APCS_32 */ -#undef CPP_APCS_PC_DEFAULT_SPEC -#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__" - -/* Because TARGET_DEFAULT sets ARM_FLAG_SOFT_FLOAT */ -#undef CPP_FLOAT_DEFAULT_SPEC -#define CPP_FLOAT_DEFAULT_SPEC "-D__SOFTFP__" - -/* Pass -X to the linker so that it will strip symbols starting with 'L' */ -#undef LINK_SPEC -#define LINK_SPEC "\ --X %{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp %{R*} \ -%{static:-Bstatic} %{assert*} \ -" - -#undef SIZE_TYPE -#define SIZE_TYPE "unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "int" - -#undef WCHAR_TYPE -#define WCHAR_TYPE "int" - -#undef WCHAR_UNSIGNED -#define WCHAR_UNSIGNED 0 - -#undef WCHAR_TYPE_SIZE -#define WCHAR_TYPE_SIZE 32 - -#define HANDLE_SYSV_PRAGMA - -/* 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 FUNCTION_PROFILER -#define FUNCTION_PROFILER(STREAM,LABELNO) \ -{ \ - fprintf(STREAM, "\tmov\t%sip, %slr\n", REGISTER_PREFIX, REGISTER_PREFIX); \ - fprintf(STREAM, "\tbl\tmcount\n"); \ -} - -/* On the ARM `@' introduces a comment, so we must use something else - for .type directives. */ -#undef TYPE_OPERAND_FMT -#define TYPE_OPERAND_FMT "%%%s" - -/* NetBSD uses the old PCC style aggregate returning conventions. */ -#undef DEFAULT_PCC_STRUCT_RETURN -#define DEFAULT_PCC_STRUCT_RETURN 1 - -/* Although not normally relevant (since by default, all aggregates - are returned in memory) compiling some parts of libc requires - non-APCS style struct returns. */ -#undef RETURN_IN_MEMORY - -/* VERY BIG NOTE : Change of structure alignment for RiscBSD. - 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 alinged. - 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 STRUCTURE_SIZE_BOUNDARY -#define STRUCTURE_SIZE_BOUNDARY 8 |