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/* Definitions of target machine for GNU compiler, for PowerPC
running Windows/NT.
Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
Contributed by Cygnus Support.
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. */
/* Say this is Windows/NT for the other config files. */
#define WINDOWS_NT 1
#define COFF_WITH_PE 1
/* Default ABI to compile code for */
#define DEFAULT_ABI ABI_NT
#define CPP_DEFAULT_SPEC "-D_ARCH_PPC"
#define ASM_DEFAULT_SPEC "-mppc"
/* Pseudo target that we can test in the md file. */
#define TARGET_WINDOWS_NT 1
#include "rs6000/rs6000.h"
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
#undef PROCESSOR_DEFAULT
#define PROCESSOR_DEFAULT PROCESSOR_POWERPC
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "-DWIN32 -D_WIN32 \
-DWINNT -D__STDC__=0 -DALMOST_STDC \
-D_POWER -D_ARCH_PPC -D__PPC__ -Asystem(winnt) -Acpu(powerpc) -Amachine(powerpc)"
#if 0
#include "winnt/win-nt.h"
#endif
#undef LIB_SPEC
#define LIB_SPEC "%{mwindows:-subsystem:windows -entry:WinMainCRTStartup \
USER32.LIB GDI32.LIB COMDLG32.LIB WINSPOOL.LIB} \
%{!mwindows:-subsystem console -e mainCRTStartup} \
%{mcrtmt:LIBCMT.LIB KERNEL32.LIB} %{!mcrtmt:-lkernel32 -lcygwin} \
%{v}"
#undef LINK_SPEC
#define LINK_SPEC "%{v:-V}"
/* Allow switches specified in LIB_SPEC, but don't do anything with them
in the compiler. */
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{ "windows", 0 }, \
{ "crtmt", 0 },
#undef XCOFF_DEBUGGING_INFO
/* this is pure coff, not xcoff */
#define SDB_DEBUGGING_INFO
#define DBX_DEBUGGING_INFO
#undef SDB_DELIM
#define SDB_DELIM ";"
#undef PREFERRED_DEBUGGING_TYPE
#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
/* NT always runs little endian */
#undef BYTES_BIG_ENDIAN
#define BYTES_BIG_ENDIAN 0
#undef WORDS_BIG_ENDIAN
#define WORDS_BIG_ENDIAN 0
/* Define cutoff for using external functions to save floating point.
Currently on NT, always use inline stores */
#undef FP_SAVE_INLINE
#define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
/* Note, little endian systems trap on unaligned addresses, so never
turn off strict alignment in that case. */
#undef STRICT_ALIGNMENT
#define STRICT_ALIGNMENT 1
/* Align stack to 16 byte boundaries */
#undef STACK_BOUNDARY
#define STACK_BOUNDARY 128
/* No data type wants to be aligned rounder than this. */
#undef BIGGEST_ALIGNMENT
#define BIGGEST_ALIGNMENT 128
/* NT aligns internal doubles in structures on dword boundaries. */
#undef BIGGEST_FIELD_ALIGNMENT
#define BIGGEST_FIELD_ALIGNMENT 64
#undef ADJUST_FIELD_ALIGN
#undef ROUND_TYPE_ALIGN
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (PowerPC PE)");
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_NO_FP_IN_TOC | MASK_NO_SUM_IN_TOC)
/* MEM representing address to save the TOC register */
#undef RS6000_SAVE_TOC
#define RS6000_SAVE_TOC gen_rtx_MEM (Pmode, \
plus_constant (virtual_incoming_args_rtx,
-RS6000_SAVE_AREA - 8))
/* Windows NT specifies that r13 is reserved to the OS, so it is not available
to the normal user. */
#undef FIXED_R13
#define FIXED_R13 1
/* This says how to output an assembler line
to define a global common symbol. */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGNMENT) \
do { fputs ("\t.comm \t", (FILE)); \
assemble_name ((FILE), (NAME)); \
if ( (SIZE) > 4) \
fprintf ((FILE), ",%d,%d\n", (SIZE), 3); \
else \
fprintf( (FILE), ",%d\n", (SIZE)); \
} while (0)
#undef ASM_OUTPUT_ALIGNED_LOCAL
/* This says how to output an assembler line
to define a global common symbol. */
#undef ASM_OUTPUT_COMMON
#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
do { fputs ("\t.comm \t", (FILE)); \
assemble_name ((FILE), (NAME)); \
fprintf ((FILE), ",%d\n", (SIZE)); } while (0)
/* This says how to output an assembler line
to define an aligned local common symbol. */
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
bss_section (); \
ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL (FILE, NAME); \
ASM_OUTPUT_SKIP (FILE, SIZE); \
} while (0)
/* Describe how to emit uninitialized external linkage items */
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
do { \
ASM_GLOBALIZE_LABEL (FILE, NAME); \
ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
} while (0)
/* This says out to put a global symbol in the BSS section */
#undef ASM_OUTPUT_ALIGNED_BSS
#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
asm_output_aligned_bss ((FILE), (DECL), (NAME), (SIZE), (ALIGN))
/* Stuff to force fit us into the Motorola PPC assembler */
#undef ASM_FILE_START
#define ASM_FILE_START(FILE) \
do { \
output_file_directive ((FILE), main_input_filename); \
rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
data_section (); \
} while (0)
#undef ASM_FILE_END
#undef ASM_DECLARE_FUNCTION_NAME
#define ASM_DECLARE_FUNCTION_NAME(FILE,NAME,DECL) \
{ \
tree exception_args; \
int i; \
\
if (TREE_PUBLIC (DECL)) \
{ \
fprintf (FILE, "\t.globl .."); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} \
\
fprintf (FILE, "\n#\tFunction: '.."); \
assemble_name (FILE, NAME); \
fputs ("'\n", FILE); \
fputs ("#\tText in section: <default>\n\n", FILE); \
fputs ("#\tSetup MS Structured-Exception-Handling\n", FILE); \
fputs ("\t.pdata\n", FILE); \
fputs ("\t.align 2\n", FILE); \
fputs ("\t.ualong ..", FILE); \
assemble_name (FILE, NAME); \
fputs (",", FILE); \
assemble_name (FILE, NAME); \
fputs (".e,", FILE); \
exception_args = lookup_attribute ("exception", \
TYPE_ATTRIBUTES (TREE_TYPE (DECL))); \
\
if (exception_args) \
exception_args = TREE_VALUE (exception_args); \
\
for (i = 0; i < 2; i++) \
{ \
if (!exception_args) \
fputs ("0,", FILE); \
else \
{ \
tree field = TREE_VALUE (exception_args); \
exception_args = TREE_PURPOSE (exception_args); \
if (TREE_CODE (field) == STRING_CST) \
fprintf (FILE, "%.*s,", TREE_STRING_LENGTH (field), \
TREE_STRING_POINTER (field)); \
else if (TREE_CODE (field) == IDENTIFIER_NODE) \
fprintf (FILE, "%.*s,", IDENTIFIER_LENGTH (field), \
IDENTIFIER_POINTER (field)); \
else \
abort (); \
} \
} \
\
assemble_name (FILE, NAME); \
fprintf (FILE, ".b\n\n"); \
fprintf (FILE, "#\tSwitch to the relocation section\n"); \
fprintf (FILE, "\t.reldata\n"); \
assemble_name (FILE, NAME); \
fprintf (FILE, ":\n"); \
fprintf (FILE, "\t.ualong .."); \
assemble_name (FILE, NAME); \
fprintf (FILE, ",.toc\n"); \
\
if (lookup_attribute ("dllexport", \
TYPE_ATTRIBUTES (TREE_TYPE (DECL)))) \
{ \
fprintf (FILE, "\t.globl __imp_"); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n__imp_"); \
assemble_name (FILE, NAME); \
fprintf (FILE, ":\n\t.ulong "); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} \
\
fprintf (FILE, "\t.section .text\n\t.align 2\n.."); \
assemble_name (FILE, NAME); \
fprintf (FILE, ":\n"); \
fprintf (FILE, "\t.function\t.."); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
}
/* This is how to output an assembler line defining a `double' constant. */
#undef ASM_OUTPUT_DOUBLE
#define ASM_OUTPUT_DOUBLE(FILE, VALUE) \
{ \
if (REAL_VALUE_ISINF (VALUE) \
|| REAL_VALUE_ISNAN (VALUE) \
|| REAL_VALUE_MINUS_ZERO (VALUE)) \
{ \
long t[2]; \
REAL_VALUE_TO_TARGET_DOUBLE ((VALUE), t); \
fprintf (FILE, "\t.ualong 0x%lx\n\t.long 0x%lx\n", \
t[0] & 0xffffffff, t[1] & 0xffffffff); \
} \
else \
{ \
char str[30]; \
REAL_VALUE_TO_DECIMAL (VALUE, "%.20e", str); \
fprintf (FILE, "\t.double %s\n", str); \
} \
}
/* This is how to output an assembler line defining a `float' constant. */
#undef ASM_OUTPUT_FLOAT
#define ASM_OUTPUT_FLOAT(FILE, VALUE) \
{ \
if (REAL_VALUE_ISINF (VALUE) \
|| REAL_VALUE_ISNAN (VALUE) \
|| REAL_VALUE_MINUS_ZERO (VALUE)) \
{ \
long t; \
REAL_VALUE_TO_TARGET_SINGLE ((VALUE), t); \
fprintf (FILE, "\t.ualong 0x%lx\n", t & 0xffffffff); \
} \
else \
{ \
char str[30]; \
REAL_VALUE_TO_DECIMAL ((VALUE), "%.20e", str); \
fprintf (FILE, "\t.float %s\n", str); \
} \
}
/* Output before instructions. */
#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP "\t.text"
/* Output before writable data. */
#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP "\t.data"
/* Output to the bss section. */
#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP "\t.section .bss"
/* Define the extra sections we need. We define a dummy TOC section,
plus sections to hold the list of static constructors (.ctors) and
destructors (.dtors). */
#undef READONLY_DATA_SECTION
#undef EXTRA_SECTIONS
#define EXTRA_SECTIONS in_toc, in_ctors, in_dtors
/* Define the routines to implement these extra sections. */
#undef EXTRA_SECTION_FUNCTIONS
#define EXTRA_SECTION_FUNCTIONS \
CTORS_SECTION_FUNCTION \
DTORS_SECTION_FUNCTION \
TOC_SECTION_FUNCTION \
#define TOC_SECTION_FUNCTION \
void \
toc_section () \
{ \
}
#define CTORS_SECTION_ASM_OP ".section\t.ctors"
#define CTORS_SECTION_FUNCTION \
void \
ctors_section () \
{ \
if (in_section != in_ctors) \
{ \
fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
in_section = in_ctors; \
} \
}
#define DTORS_SECTION_ASM_OP ".section\t.dtors"
#define DTORS_SECTION_FUNCTION \
void \
dtors_section () \
{ \
if (in_section != in_dtors) \
{ \
fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
in_section = in_dtors; \
} \
}
#undef SELECT_SECTION
#undef SELECT_RTX_SECTION
/* Make sure __main gets called */
#define INVOKE__main 1
/* A C statement (sans semicolon) to output an element in the table of
global constructors. */
#undef ASM_OUTPUT_CONSTRUCTOR
#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
do { \
ctors_section (); \
fprintf (FILE, "\t.ualong "); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
/* A C statement (sans semicolon) to output an element in the table of
global destructors. */
#undef ASM_OUTPUT_DESTRUCTOR
#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
do { \
dtors_section (); \
fprintf (FILE, "\t.ualong "); \
assemble_name (FILE, NAME); \
fprintf (FILE, "\n"); \
} while (0)
/* Text to write out after a CALL that may be replaced by glue code by
the loader. The motorola asm demands that, for dll support, a .znop
be issued after a bl instruction, and the symbol on the .znop is the
symbol on the bl instruction */
#undef RS6000_CALL_GLUE
#define RS6000_CALL_GLUE "nop #\tFIXME: only works for non-dll calls."
#define RS6000_CALL_GLUE2 ".znop "
#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY
/* Output something to declare an external symbol to the assembler. Most
assemblers don't need this. */
#undef ASM_OUTPUT_EXTERNAL
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
{ \
char *_name; \
rtx _symref = XEXP (DECL_RTL (DECL), 0); \
if ((TREE_CODE (DECL) == VAR_DECL \
|| TREE_CODE (DECL) == FUNCTION_DECL) \
&& (NAME)[strlen (NAME) - 1] != ']') \
{ \
_name = (char *) permalloc (strlen (XSTR (_symref, 0)) + 5); \
strcpy (_name, XSTR (_symref, 0)); \
XSTR (_symref, 0) = _name; \
} \
else \
_name = XSTR (_symref, 0); \
\
if (DECL_FUNCTION_CODE (DECL) == 0) \
{ \
fputs ("\t.extern ", FILE); \
assemble_name (FILE, _name); \
putc ('\n', FILE); \
if (TREE_CODE (DECL) == FUNCTION_DECL) \
{ \
fputs ("\t.extern ..", FILE); \
assemble_name (FILE, _name); \
putc ('\n', FILE); \
} \
} \
}
/* Similar, but for libcall. We only have to worry about the function name,
not that of the descriptor. */
#undef ASM_OUTPUT_EXTERNAL_LIBCALL
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
{ fprintf (FILE, "\t.extern .."); \
assemble_name (FILE, XSTR (FUN, 0)); \
fprintf (FILE, "\n"); \
}
/* The prefix to add to user-visible assembler symbols. */
#define USER_LABEL_PREFIX ".."
/* Eliminate AIX style constant pool processing */
#undef LEGITIMATE_CONSTANT_POOL_BASE_P
#define LEGITIMATE_CONSTANT_POOL_BASE_P(X) 0
#undef LEGITIMATE_CONSTANT_POOL_ADDRESS_P
#define LEGITIMATE_CONSTANT_POOL_ADDRESS_P(X) 0
#undef ASM_OUTPUT_SPECIAL_POOL_ENTRY
#undef ASM_IDENTIFY_GCC
#define ASM_IDENTIFY_GCC(x)
/* Output assembler code for a block containing the constant parts
of a trampoline, leaving space for the variable parts.
The trampoline should set the static chain pointer to value placed
into the trampoline and should branch to the specified routine. */
#define TRAMPOLINE_TEMPLATE(FILE) rs6000_trampoline_template (FILE)
|
