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/* Definitions of target machine for GNU compiler, for MIPS NetBSD systems.
Copyright (C) 1993-2022 Free Software Foundation, 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 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.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
/* Define default target values. */
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
NETBSD_OS_CPP_BUILTINS_ELF(); \
builtin_define ("__NO_LEADING_UNDERSCORES__"); \
builtin_define ("__GP_SUPPORT__"); \
if (TARGET_LONG64) \
builtin_define ("__LONG64"); \
\
if (TARGET_ABICALLS) \
builtin_define ("__ABICALLS__"); \
\
if (mips_abi == ABI_32) \
builtin_define ("__mips_o32"); \
else if (mips_abi == ABI_EABI) \
builtin_define ("__mips_eabi"); \
else if (mips_abi == ABI_N32) \
builtin_define ("__mips_n32"); \
else if (mips_abi == ABI_64) \
builtin_define ("__mips_n64"); \
else if (mips_abi == ABI_O64) \
builtin_define ("__mips_o64"); \
} \
while (0)
/* The generic MIPS TARGET_CPU_CPP_BUILTINS are incorrect for NetBSD.
Specifically, they define too many namespace-invasive macros. Override
them here. Note this is structured for easy comparison to the version
in mips.h.
FIXME: This probably isn't the best solution. But in the absence
of something better, it will have to do, for now. */
#undef TARGET_CPU_CPP_BUILTINS
#define TARGET_CPU_CPP_BUILTINS() \
do \
{ \
builtin_assert ("cpu=mips"); \
builtin_define ("__mips__"); \
builtin_define ("_mips"); \
\
/* No _R3000 or _R4000. */ \
if (TARGET_64BIT) \
builtin_define ("__mips64"); \
\
if (TARGET_FLOAT64) \
builtin_define ("__mips_fpr=64"); \
else \
builtin_define ("__mips_fpr=32"); \
\
if (TARGET_MIPS16) \
builtin_define ("__mips16"); \
\
MIPS_CPP_SET_PROCESSOR ("_MIPS_ARCH", mips_arch_info); \
MIPS_CPP_SET_PROCESSOR ("_MIPS_TUNE", mips_tune_info); \
\
if (ISA_MIPS1) \
builtin_define ("__mips=1"); \
else if (ISA_MIPS2) \
builtin_define ("__mips=2"); \
else if (ISA_MIPS3) \
builtin_define ("__mips=3"); \
else if (ISA_MIPS4) \
builtin_define ("__mips=4"); \
else if (mips_isa >= MIPS_ISA_MIPS32 \
&& mips_isa < MIPS_ISA_MIPS64) \
builtin_define ("__mips=32"); \
else if (mips_isa >= MIPS_ISA_MIPS64) \
builtin_define ("__mips=64"); \
if (mips_isa_rev > 0) \
builtin_define_with_int_value ("__mips_isa_rev", \
mips_isa_rev); \
\
if (TARGET_HARD_FLOAT) \
builtin_define ("__mips_hard_float"); \
else if (TARGET_SOFT_FLOAT) \
builtin_define ("__mips_soft_float"); \
\
if (TARGET_SINGLE_FLOAT) \
builtin_define ("__mips_single_float"); \
\
if (TARGET_BIG_ENDIAN) \
builtin_define ("__MIPSEB__"); \
else \
builtin_define ("__MIPSEL__"); \
\
/* No language dialect defines. */ \
\
/* ABIs handled in TARGET_OS_CPP_BUILTINS. */ \
} \
while (0)
/* Extra specs we need. */
#undef SUBTARGET_EXTRA_SPECS
#define SUBTARGET_EXTRA_SPECS \
{ "netbsd_cpp_spec", NETBSD_CPP_SPEC }, \
{ "netbsd_link_spec", NETBSD_LINK_SPEC_ELF }, \
{ "netbsd_entry_point", NETBSD_ENTRY_POINT },
/* Provide a SUBTARGET_CPP_SPEC appropriate for NetBSD. */
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "%(netbsd_cpp_spec)"
/* Provide a LINK_SPEC appropriate for a NetBSD/mips target.
This is a copy of LINK_SPEC from <netbsd-elf.h> tweaked for
the MIPS target. */
#undef LINK_SPEC
#define LINK_SPEC \
"%{EL:-m elf32lmip} \
%{EB:-m elf32bmip} \
%(endian_spec) \
%{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32} %{mips32r2} \
%{mips32r6} %{mips64} %{mips64r6} \
%(netbsd_link_spec)"
#define NETBSD_ENTRY_POINT "__start"
#undef SUBTARGET_ASM_SPEC
#define SUBTARGET_ASM_SPEC \
"%{!mno-abicalls: \
%{!fno-PIC:%{!fno-pic:-KPIC}}}"
/* -G is incompatible with -KPIC which is the default, so only allow objects
in the small data section if the user explicitly asks for it. */
#undef MIPS_DEFAULT_GVALUE
#define MIPS_DEFAULT_GVALUE 0
#undef ASM_FINAL_SPEC
#undef SET_ASM_OP
/* NetBSD hasn't historically provided _flush_cache(), but rather
_cacheflush(), which takes the same arguments as the former. */
#undef CACHE_FLUSH_FUNC
#define CACHE_FLUSH_FUNC "_cacheflush"
/* Make gcc agree with <machine/ansi.h> */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
#undef WINT_TYPE
#define WINT_TYPE "int"
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