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/* Definitions for MIPS systems using GNU userspace.
Copyright (C) 1998-2022 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/>. */
#undef WCHAR_TYPE
#define WCHAR_TYPE "int"
#undef WCHAR_TYPE_SIZE
#define WCHAR_TYPE_SIZE 32
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME mips_declare_object_name
/* If we don't set MASK_ABICALLS, we can't default to PIC. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT MASK_ABICALLS
#define TARGET_OS_CPP_BUILTINS() \
do { \
GNU_USER_TARGET_OS_CPP_BUILTINS(); \
/* The GNU C++ standard library requires this. */ \
if (c_dialect_cxx ()) \
builtin_define ("_GNU_SOURCE"); \
} while (0)
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
/* A standard GNU/Linux mapping. On most targets, it is included in
CC1_SPEC itself by config/linux.h, but mips.h overrides CC1_SPEC
and provides this hook instead. */
#undef SUBTARGET_CC1_SPEC
#define SUBTARGET_CC1_SPEC GNU_USER_TARGET_CC1_SPEC
/* -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 GNU_USER_TARGET_LINK_SPEC
#define GNU_USER_TARGET_LINK_SPEC "\
%{G*} %{EB} %{EL} %{mips*} %{shared} \
%{!shared: \
%{!static: \
%{rdynamic:-export-dynamic} \
%{mabi=n32: -dynamic-linker " GNU_USER_DYNAMIC_LINKERN32 "} \
%{mabi=64: -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "} \
%{mabi=32: -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}} \
%{static}} \
%{mabi=n32:-m" GNU_USER_LINK_EMULATIONN32 "} \
%{mabi=64:-m" GNU_USER_LINK_EMULATION64 "} \
%{mabi=32:-m" GNU_USER_LINK_EMULATION32 "}"
#undef LINK_SPEC
#define LINK_SPEC GNU_USER_TARGET_LINK_SPEC
#undef SUBTARGET_ASM_SPEC
#define SUBTARGET_ASM_SPEC \
"%{!mno-abicalls:%{mplt:-call_nonpic;:-KPIC}}"
/* The MIPS assembler has different syntax for .set. We set it to
.dummy to trap any errors. */
#undef SET_ASM_OP
#define SET_ASM_OP "\t.dummy\t"
#undef ASM_OUTPUT_DEF
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
do { \
fputc ( '\t', FILE); \
assemble_name (FILE, LABEL1); \
fputs ( " = ", FILE); \
assemble_name (FILE, LABEL2); \
fputc ( '\n', FILE); \
} while (0)
/* The glibc _mcount stub will save $v0 for us. Don't mess with saving
it, since ASM_OUTPUT_REG_PUSH/ASM_OUTPUT_REG_POP do not work in the
presence of $gp-relative calls. */
#undef ASM_OUTPUT_REG_PUSH
#undef ASM_OUTPUT_REG_POP
#undef LIB_SPEC
#define LIB_SPEC GNU_USER_TARGET_LIB_SPEC
#ifdef HAVE_AS_NO_SHARED
/* Default to -mno-shared for non-PIC. */
# define NO_SHARED_SPECS \
" %{mshared|mno-shared:;:%{" NO_FPIE_AND_FPIC_SPEC ":-mno-shared}}"
#else
# define NO_SHARED_SPECS ""
#endif
/* -march=native handling only makes sense with compiler running on
a MIPS chip. */
#if defined(__mips__)
extern const char *host_detect_local_cpu (int argc, const char **argv);
# define EXTRA_SPEC_FUNCTIONS \
{ "local_cpu_detect", host_detect_local_cpu },
# define MARCH_MTUNE_NATIVE_SPECS \
" %{march=native:%<march=native %:local_cpu_detect(arch)}" \
" %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
#else
# define MARCH_MTUNE_NATIVE_SPECS ""
#endif
#define LINUX_DRIVER_SELF_SPECS \
NO_SHARED_SPECS \
MARCH_MTUNE_NATIVE_SPECS, \
/* -mplt has no effect without -mno-shared. Simplify later \
specs handling by removing a redundant option. */ \
"%{!mno-shared:%<mplt}", \
/* -mplt likewise has no effect for -mabi=64 without -msym32. */ \
"%{mabi=64:%{!msym32:%<mplt}}", \
"%{!EB:%{!EL:%(endian_spec)}}", \
"%{!mabi=*: -" MULTILIB_ABI_DEFAULT "}"
#undef DRIVER_SELF_SPECS
#define DRIVER_SELF_SPECS \
MIPS_ISA_LEVEL_SPEC, \
BASE_DRIVER_SELF_SPECS, \
LINUX_DRIVER_SELF_SPECS
/* Similar to standard Linux, but adding -ffast-math support. */
#undef GNU_USER_TARGET_MATHFILE_SPEC
#define GNU_USER_TARGET_MATHFILE_SPEC \
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
GNU_USER_TARGET_MATHFILE_SPEC " " \
GNU_USER_TARGET_ENDFILE_SPEC
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX (TARGET_OLDABI ? "$" : ".")
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