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NetBSD/gnu/usr.bin/gcc/arch/mips/netbsd.h

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/* Definitions for DECstation running BSD as target machine for GNU compiler.
Copyright (C) 1993, 1995 Free Software Foundation, Inc.
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. */
/* We settle for little endian for now */
#define TARGET_ENDIAN_DEFAULT 0
/* Look for the include files in the system-defined places. */
#ifndef CROSS_COMPILE
#undef GPLUSPLUS_INCLUDE_DIR
#define GPLUSPLUS_INCLUDE_DIR "/usr/include/g++"
#undef GCC_INCLUDE_DIR
#define GCC_INCLUDE_DIR "/usr/include"
#undef INCLUDE_DEFAULTS
#define INCLUDE_DEFAULTS \
{ \
{ GPLUSPLUS_INCLUDE_DIR, 1, 1 }, \
{ GCC_INCLUDE_DIR, 0, 0 }, \
{ 0, 0, 0 } \
}
/* Under NetBSD, the normal location of the various *crt*.o files is the
/usr/lib directory. */
#undef STANDARD_STARTFILE_PREFIX
#define STANDARD_STARTFILE_PREFIX "/usr/lib/"
#endif
/* Provide a LINK_SPEC appropriate for NetBSD. Here we provide support
for the special GCC options -static, -assert, and -nostdlib. */
#undef LINK_SPEC
#define LINK_SPEC \
"%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
%{bestGnum} %{shared} %{non_shared} \
%{call_shared} %{no_archive} %{exact_version} \
%{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \
%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so} \
%{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \
%{static:-Bstatic} %{!static:-Bdynamic} %{assert*}"
/*
* XXX: the stdlib line should be
* %{nostdlib:-nostdlib} %{!nostdlib:%{!r*:%{!e*:-e __start}}} -dc -dp \
* but "ld -nostdlib" n mips/elf binutils 2.x produces corrupt binaries.
*/
/* We have atexit(3). */
#define HAVE_ATEXIT
/* Implicit library calls should use memcpy, not bcopy, etc. */
#define TARGET_MEM_FUNCTIONS
/* Trampoline code for closures should call _cacheflush()
to ensure I-cache consistency after writing trampoline code. */
#define MIPS_CACHEFLUSH_FUNC "_cacheflush"
/* Define mips-specific netbsd predefines... */
#ifndef CPP_PREDEFINES
#define CPP_PREDEFINES "-D__ANSI_COMPAT \
-DMIPSEL -DR3000 -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__NetBSD__ -Dmips \
-D__ELF__ -D__NO_LEADING_UNDERSCORES__ -D__GP_SUPPORT__ \
-Dunix -D_R3000 -D__KPRINTF_ATTRIBUTE__ \
-Asystem(unix) -Asystem(NetBSD) -Amachine(mips)"
#endif
#ifndef CC1_SPEC
#define CC1_SPEC "\
%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \
%{mips1:-mfp32 -mgp32}%{mips2:-mfp32 -mgp32}\
%{mips3:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \
%{mips4:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \
%{mfp64:%{msingle-float:%emay not use both -mfp64 and -msingle-float}} \
%{mfp64:%{m4650:%emay not use both -mfp64 and -m4650}} \
%{m4650:-mcpu=r4650} \
%{G*} %{EB:-meb} %{EL:-mel} %{EB:%{EL:%emay not use both -EB and -EL}} \
%{pic-none: -mno-half-pic} \
%{pic-lib: -mhalf-pic} \
%{pic-extern: -mhalf-pic} \
%{pic-calls: -mhalf-pic} \
%{save-temps: } \
%{!mno-abicalls: -mabicalls}"
#endif
/* Always uses gas. */
#ifndef ASM_SPEC
#define ASM_SPEC "\
%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{v} \
%{noasmopt:-O0} \
%{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
%{g} %{g0} %{g1} %{g2} %{g3} \
%{ggdb:-g} %{ggdb0:-g0} %{ggdb1:-g1} %{ggdb2:-g2} %{ggdb3:-g3} \
%{gstabs:-g} %{gstabs0:-g0} %{gstabs1:-g1} %{gstabs2:-g2} %{gstabs3:-g3} \
%{gstabs+:-g} %{gstabs+0:-g0} %{gstabs+1:-g1} %{gstabs+2:-g2} %{gstabs+3:-g3} \
%{gcoff:-g} %{gcoff0:-g0} %{gcoff1:-g1} %{gcoff2:-g2} %{gcoff3:-g3} \
%{membedded-pic} %{fPIC:-KPIC}"
#endif
#ifndef CPP_SPEC
#define CPP_SPEC "\
%{posix:-D_POSIX_SOURCE} \
%{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
%{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
%{mips3:-U__mips -D__mips=3 -D__mips64} \
%{mgp32:-U__mips64} %{mgp64:-D__mips64}"
#endif
#define LIB_SPEC "%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}"
#undef LIB_SPEC
#define LIB_SPEC "%{p:-lprof1} %{pg:-lprof1} -lc /usr/lib/crtn.o%s"
#define STARTFILE_SPEC \
"%{!shared:%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s libprof1.a%s}%{!p:crt1.o%s}}}"
#ifndef MACHINE_TYPE
#define MACHINE_TYPE "NetBSD/mips"
#endif
#define TARGET_DEFAULT MASK_GAS
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
#define LOCAL_LABEL_PREFIX "."
/* -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
#include "mips/mips.h"
/*
* Some imports from svr4.h in support of shared libraries.
* Currently, we need the DECLARE_OBJECT_SIZE stuff.
*/
/* Define the strings used for the special svr4 .type and .size directives.
These strings generally do not vary from one system running svr4 to
another, but if a given system (e.g. m88k running svr) needs to use
different pseudo-op names for these, they may be overridden in the
file which includes this one. */
#undef TYPE_ASM_OP
#undef SIZE_ASM_OP
#undef WEAK_ASM_OP
#define TYPE_ASM_OP ".type"
#define SIZE_ASM_OP ".size"
#define WEAK_ASM_OP ".weak"
/* This is how to equate one symbol to another symbol. The syntax used is
`SYM1=SYM2'. Note that this is different from the way equates are done
with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */
#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
do { fprintf ((FILE), "\t"); \
assemble_name (FILE, LABEL1); \
fprintf (FILE, " = "); \
assemble_name (FILE, LABEL2); \
fprintf (FILE, "\n"); \
} while (0)
/* The following macro defines the format used to output the second
operand of the .type assembler directive. Different svr4 assemblers
expect various different forms for this operand. The one given here
is just a default. You may need to override it in your machine-
specific tm.h file (depending upon the particulars of your assembler). */
#undef TYPE_OPERAND_FMT
#define TYPE_OPERAND_FMT "@%s"
/* Write the extra assembler code needed to declare a function's result.
Most svr4 assemblers don't require any special declaration of the
result value, but there are exceptions. */
#ifndef ASM_DECLARE_RESULT
#define ASM_DECLARE_RESULT(FILE, RESULT)
#endif
/* These macros generate the special .type and .size directives which
are used to set the corresponding fields of the linker symbol table
entries in an ELF object file under SVR4. These macros also output
the starting labels for the relevant functions/objects. */
/* Write the extra assembler code needed to declare a function properly.
Some svr4 assemblers need to also have something extra said about the
function's return value. We allow for that here. */
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL) \
do { \
extern FILE *asm_out_text_file; \
\
if (TARGET_GP_OPT) \
{ \
int align; \
STREAM = asm_out_text_file; \
/* Output ALIGN again to the new stream. XXX */ \
align = floor_log2 (FUNCTION_BOUNDARY / BITS_PER_UNIT); \
if (align > 0) \
{ \
if (output_bytecode) \
BC_OUTPUT_ALIGN (STREAM, align); \
else \
ASM_OUTPUT_ALIGN (STREAM, align); \
} \
} \
fprintf (STREAM, "\t%s\t ", TYPE_ASM_OP); \
assemble_name (STREAM, NAME); \
putc (',', STREAM); \
fprintf (STREAM, TYPE_OPERAND_FMT, "function"); \
putc ('\n', STREAM); \
ASM_DECLARE_RESULT (STREAM, DECL_RESULT (DECL)); \
HALF_PIC_DECLARE (NAME); \
} while (0)
/* Assemble generic sections.
/* Write the extra assembler code needed to declare an object properly. */
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do { \
fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
assemble_name (FILE, NAME); \
putc (',', FILE); \
fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
putc ('\n', FILE); \
size_directive_output = 0; \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
{ \
size_directive_output = 1; \
fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
assemble_name (FILE, NAME); \
fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
} \
ASM_OUTPUT_LABEL(FILE, NAME); \
} while (0)
/* Output the size directive for a decl in rest_of_decl_compilation
in the case where we did not do so before the initializer.
Once we find the error_mark_node, we know that the value of
size_directive_output was set
by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
#undef ASM_FINISH_DECLARE_OBJECT
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
do { \
char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
&& ! AT_END && TOP_LEVEL \
&& DECL_INITIAL (DECL) == error_mark_node \
&& !size_directive_output) \
{ \
size_directive_output = 1; \
fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
assemble_name (FILE, name); \
fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
} \
} while (0)
/* This is how to declare the size of a function. */
#undef ASM_DECLARE_FUNCTION_SIZE
#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
do { \
if (!flag_inhibit_size_directive) \
{ \
char label[256]; \
static int labelno; \
labelno++; \
ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
assemble_name (FILE, (FNAME)); \
fprintf (FILE, ","); \
assemble_name (FILE, label); \
fprintf (FILE, "-"); \
assemble_name (FILE, (FNAME)); \
putc ('\n', FILE); \
} \
} while (0)
/* Since gas and gld are standard on NetBSD, we don't need these */
#undef ASM_FINAL_SPEC
#undef STARTFILE_SPEC
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