| /* Definitions of target machine for GNU compiler, for PowerPC |
| running Windows/NT. |
| Copyright (C) 1995, 1996 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 |
| |
| #include "rs6000/powerpc.h" |
| |
| /* Pseudo target that we can test in the md file. */ |
| #undef TARGET_WINDOWS_NT |
| #define TARGET_WINDOWS_NT 1 |
| |
| #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 |
| |
| #undef PROCESSOR_DEFAULT |
| #define PROCESSOR_DEFAULT PROCESSOR_POWERPC |
| |
| /* 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) |
| |
| #undef PROCESSOR_DEFAULT |
| #define PROCESSOR_DEFAULT PROCESSOR_PPC601 |
| |
| /* Address to save the TOC register */ |
| #undef RS6000_SAVE_TOC |
| #define RS6000_SAVE_TOC 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 unitialized 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) |
