84d9c625bf
- Fix for possible unset uid/gid in toproto
- Fix for default mtree style
- Update libelf
- Importing libexecinfo
- Resynchronize GCC, mpc, gmp, mpfr
- build.sh: Replace params with show-params.
This has been done as the make target has been renamed in the same
way, while a new target named params has been added. This new
target generates a file containing all the parameters, instead of
printing it on the console.
- Update test48 with new etc/services (Fix by Ben Gras <ben@minix3.org)
get getservbyport() out of the inner loop
Change-Id: Ie6ad5226fa2621ff9f0dee8782ea48f9443d2091
151 lines
5.7 KiB
C
151 lines
5.7 KiB
C
/* Definitions for ARM running MINIX using the ELF format
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Copyright (C) 2001, 2004, 2007 Free Software Foundation, Inc.
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Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
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Adapted for MINIX by Lionel Sambuc <lionel@minix3.org>
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#undef MINIX_TARGET_CPU_CPP_BUILTINS
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#define MINIX_TARGET_CPU_CPP_BUILTINS() \
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do \
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{ \
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TARGET_BPABI_CPP_BUILTINS(); \
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if (ARM_EABI_UNWIND_TABLES) \
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builtin_define ("__UNWIND_TABLES__"); \
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} \
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while (0)
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/* Define the actual types of some ANSI-mandated types.
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Needs to agree with <machine/ansi.h>. GCC defaults come from c-decl.c,
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c-common.c, and config/<arch>/<arch>.h. */
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WINT_TYPE
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#define WINT_TYPE "int"
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/* We don't have any limit on the length as out debugger is GDB. */
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#undef DBX_CONTIN_LENGTH
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/* NetBSD does its profiling differently to the Acorn compiler. We
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don't need a word following the mcount call; and to skip it
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requires either an assembly stub or use of fomit-frame-pointer when
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compiling the profiling functions. Since we break Acorn CC
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compatibility below a little more won't hurt. */
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#undef ARM_FUNCTION_PROFILER
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#define ARM_FUNCTION_PROFILER(STREAM,LABELNO) \
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{ \
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asm_fprintf (STREAM, "\tmov\t%Rip, %Rlr\n"); \
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asm_fprintf (STREAM, "\tbl\t__mcount%s\n", \
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(TARGET_ARM && NEED_PLT_RELOC) \
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? "(PLT)" : ""); \
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}
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/* VERY BIG NOTE: Change of structure alignment for NetBSD/arm.
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There are consequences you should be aware of...
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Normally GCC/arm uses a structure alignment of 32 for compatibility
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with armcc. This means that structures are padded to a word
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boundary. However this causes problems with bugged NetBSD kernel
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code (possibly userland code as well - I have not checked every
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binary). The nature of this bugged code is to rely on sizeof()
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returning the correct size of various structures rounded to the
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nearest byte (SCSI and ether code are two examples, the vm system
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is another). This code breaks when the structure alignment is 32
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as sizeof() will report a word=rounded size. By changing the
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structure alignment to 8. GCC will conform to what is expected by
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NetBSD.
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This has several side effects that should be considered.
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1. Structures will only be aligned to the size of the largest member.
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i.e. structures containing only bytes will be byte aligned.
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structures containing shorts will be half word aligned.
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structures containing ints will be word aligned.
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This means structures should be padded to a word boundary if
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alignment of 32 is required for byte structures etc.
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2. A potential performance penalty may exist if strings are no longer
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word aligned. GCC will not be able to use word load/stores to copy
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short strings.
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This modification is not encouraged but with the present state of the
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NetBSD source tree it is currently the only solution that meets the
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requirements. */
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#undef DEFAULT_STRUCTURE_SIZE_BOUNDARY
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#define DEFAULT_STRUCTURE_SIZE_BOUNDARY 8
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/* Fixed-sized enum by default (-fno-short-enums) */
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#undef MINIX_CC1_SPEC
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#define MINIX_CC1_SPEC "%{!fshort-enums:%{!fno-short-enums:-fno-short-enums}} "
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/* Use by default the new abi and calling standard */
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#undef ARM_DEFAULT_ABI
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#define ARM_DEFAULT_ABI ARM_ABI_AAPCS
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/* LSC: FIXME: When activated, some programs crash on qemu with an illegal
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* instruction.
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* The cause is unknown (Missing support on MINIX, missing support
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* on the emulator, library error...).
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*/
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#if 0
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/* Make sure we use hard-floating point ABI by default */
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#undef TARGET_DEFAULT_FLOAT_ABI
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#define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_HARD
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#endif
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#if defined(NETBSD_NATIVE)
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/* LSC: On arm, when compiling statically, we need gcc_eh. */
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#undef MINIX_LINK_GCC_C_SEQUENCE_SPEC
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#define MINIX_LINK_GCC_C_SEQUENCE_SPEC \
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"%{static:--start-group} %G %L -lgcc_eh %{static:--end-group}%{!static:%G}"
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#endif /* defined(NETBSD_NATIVE) */
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/* Default to full VFP if -mhard-float is specified. */
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#undef MINIX_SUBTARGET_ASM_FLOAT_SPEC
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#define MINIX_SUBTARGET_ASM_FLOAT_SPEC \
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"%{mhard-float:{!mfpu=*:-mfpu=vfpv3-d16}} \
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%{mfloat-abi=hard:{!mfpu=*:-mfpu=vfpv3-d16}}"
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#undef MINIX_SUBTARGET_EXTRA_ASM_SPEC
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#define MINIX_SUBTARGET_EXTRA_ASM_SPEC \
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"%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5}" \
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TARGET_FIX_V4BX_SPEC \
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"%{fpic|fpie:-k} %{fPIC|fPIE:-k}"
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/* Little endian by default */
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#undef TARGET_ENDIAN_DEFAULT
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#define TARGET_ENDIAN_DEFAULT 0
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#undef SUBTARGET_CPU_DEFAULT
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_cortexa8
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#undef TARGET_VERSION
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#define TARGET_VERSION fputs (" (MINIX/arm ELF EABI)", stderr);
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#undef ARM_EABI_UNWIND_TABLES
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#define ARM_EABI_UNWIND_TABLES \
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((!USING_SJLJ_EXCEPTIONS && flag_exceptions) || flag_unwind_tables)
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