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Diffstat (limited to 'contrib/gcc/config/svr4.h')
| -rw-r--r-- | contrib/gcc/config/svr4.h | 926 |
1 files changed, 0 insertions, 926 deletions
diff --git a/contrib/gcc/config/svr4.h b/contrib/gcc/config/svr4.h deleted file mode 100644 index 7fa30e8ac261..000000000000 --- a/contrib/gcc/config/svr4.h +++ /dev/null @@ -1,926 +0,0 @@ -/* Operating system specific defines to be used when targeting GCC for some - generic System V Release 4 system. - Copyright (C) 1991, 94-98, 1999 Free Software Foundation, Inc. - Contributed by Ron Guilmette (rfg@monkeys.com). - -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. - - To use this file, make up a file with a name like: - - ?????svr4.h - - where ????? is replaced by the name of the basic hardware that you - are targeting for. Then, in the file ?????svr4.h, put something - like: - - #include "?????.h" - #include "svr4.h" - - followed by any really system-specific defines (or overrides of - defines) which you find that you need. For example, CPP_PREDEFINES - is defined here with only the defined -Dunix and -DSVR4. You should - probably override that in your target-specific ?????svr4.h file - with a set of defines that includes these, but also contains an - appropriate define for the type of hardware that you are targeting. -*/ - -/* Define a symbol indicating that we are using svr4.h. */ -#define USING_SVR4_H - -/* For the sake of libgcc2.c, indicate target supports atexit. */ -#define HAVE_ATEXIT - -/* Cpp, assembler, linker, library, and startfile spec's. */ - -/* This defines which switch letters take arguments. On svr4, most of - the normal cases (defined in gcc.c) apply, and we also have -h* and - -z* options (for the linker). Note however that there is no such - thing as a -T option for svr4. */ - -#define SWITCH_TAKES_ARG(CHAR) \ - (DEFAULT_SWITCH_TAKES_ARG (CHAR) \ - || (CHAR) == 'h' \ - || (CHAR) == 'x' \ - || (CHAR) == 'z') - -/* This defines which multi-letter switches take arguments. On svr4, - there are no such switches except those implemented by GCC itself. */ - -#define WORD_SWITCH_TAKES_ARG(STR) \ - (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \ - && strcmp (STR, "Tdata") && strcmp (STR, "Ttext") \ - && strcmp (STR, "Tbss")) - -/* You should redefine CPP_PREDEFINES in any file which includes this one. - The definition should be appropriate for the type of target system - involved, and it should include any -A (assertion) options which are - appropriate for the given target system. */ -#undef CPP_PREDEFINES - -/* Provide an ASM_SPEC appropriate for svr4. Here we try to support as - many of the specialized svr4 assembler options as seems reasonable, - given that there are certain options which we can't (or shouldn't) - support directly due to the fact that they conflict with other options - for other svr4 tools (e.g. ld) or with other options for GCC itself. - For example, we don't support the -o (output file) or -R (remove - input file) options because GCC already handles these things. We - also don't support the -m (run m4) option for the assembler because - that conflicts with the -m (produce load map) option of the svr4 - linker. We do however allow passing arbitrary options to the svr4 - assembler via the -Wa, option. - - Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,* - option. -*/ - -#undef ASM_SPEC -#define ASM_SPEC \ - "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}" - -/* svr4 assemblers need the `-' (indicating input from stdin) to come after - the -o option (and its argument) for some reason. If we try to put it - before the -o option, the assembler will try to read the file named as - the output file in the -o option as an input file (after it has already - written some stuff to it) and the binary stuff contained therein will - cause totally confuse the assembler, resulting in many spurious error - messages. */ - -#undef ASM_FINAL_SPEC -#define ASM_FINAL_SPEC "%|" - -/* Under svr4, the normal location of the `ld' and `as' programs is the - /usr/ccs/bin directory. */ - -#ifndef CROSS_COMPILE -#undef MD_EXEC_PREFIX -#define MD_EXEC_PREFIX "/usr/ccs/bin/" -#endif - -/* Under svr4, the normal location of the various *crt*.o files is the - /usr/ccs/lib directory. */ - -#ifndef CROSS_COMPILE -#undef MD_STARTFILE_PREFIX -#define MD_STARTFILE_PREFIX "/usr/ccs/lib/" -#endif - -/* Provide a LIB_SPEC appropriate for svr4. Here we tack on the default - standard C library (unless we are building a shared library). */ - -#undef LIB_SPEC -#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}" - -/* Provide an ENDFILE_SPEC appropriate for svr4. Here we tack on our own - magical crtend.o file (see crtstuff.c) which provides part of the - support for getting C++ file-scope static object constructed before - entering `main', followed by the normal svr3/svr4 "finalizer" file, - which is either `gcrtn.o' or `crtn.o'. */ - -#undef ENDFILE_SPEC -#define ENDFILE_SPEC "crtend.o%s %{pg:gcrtn.o%s}%{!pg:crtn.o%s}" - -/* Provide a LINK_SPEC appropriate for svr4. Here we provide support - for the special GCC options -static, -shared, and -symbolic which - allow us to link things in one of these three modes by applying the - appropriate combinations of options at link-time. We also provide - support here for as many of the other svr4 linker options as seems - reasonable, given that some of them conflict with options for other - svr4 tools (e.g. the assembler). In particular, we do support the - -z*, -V, -b, -t, -Qy, -Qn, and -YP* options here, and the -e*, - -l*, -o*, -r, -s, -u*, and -L* options are directly supported - by gcc.c itself. We don't directly support the -m (generate load - map) option because that conflicts with the -m (run m4) option of - the svr4 assembler. We also don't directly support the svr4 linker's - -I* or -M* options because these conflict with existing GCC options. - We do however allow passing arbitrary options to the svr4 linker - via the -Wl, option. We don't support the svr4 linker's -a option - at all because it is totally useless and because it conflicts with - GCC's own -a option. - - Note that gcc doesn't allow a space to follow -Y in a -YP,* option. - - When the -G link option is used (-shared and -symbolic) a final link is - not being done. */ - -#undef LINK_SPEC -#ifdef CROSS_COMPILE -#define LINK_SPEC "%{h*} %{v:-V} \ - %{b} %{Wl,*:%*} \ - %{static:-dn -Bstatic} \ - %{shared:-G -dy -z text} \ - %{symbolic:-Bsymbolic -G -dy -z text} \ - %{G:-G} \ - %{YP,*} \ - %{Qy:} %{!Qn:-Qy}" -#else -#define LINK_SPEC "%{h*} %{v:-V} \ - %{b} %{Wl,*:%*} \ - %{static:-dn -Bstatic} \ - %{shared:-G -dy -z text} \ - %{symbolic:-Bsymbolic -G -dy -z text} \ - %{G:-G} \ - %{YP,*} \ - %{!YP,*:%{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \ - %{!p:-Y P,/usr/ccs/lib:/usr/lib}} \ - %{Qy:} %{!Qn:-Qy}" -#endif - -/* Gcc automatically adds in one of the files /usr/ccs/lib/values-Xc.o, - /usr/ccs/lib/values-Xa.o, or /usr/ccs/lib/values-Xt.o for each final - link step (depending upon the other gcc options selected, such as - -traditional and -ansi). These files each contain one (initialized) - copy of a special variable called `_lib_version'. Each one of these - files has `_lib_version' initialized to a different (enum) value. - The SVR4 library routines query the value of `_lib_version' at run - to decide how they should behave. Specifically, they decide (based - upon the value of `_lib_version') if they will act in a strictly ANSI - conforming manner or not. -*/ - -#undef STARTFILE_SPEC -#define STARTFILE_SPEC "%{!shared: \ - %{!symbolic: \ - %{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}}}\ - %{pg:gcrti.o%s}%{!pg:crti.o%s} \ - %{ansi:values-Xc.o%s} \ - %{!ansi: \ - %{traditional:values-Xt.o%s} \ - %{!traditional:values-Xa.o%s}} \ - crtbegin.o%s" - -/* Attach a special .ident directive to the end of the file to identify - the version of GCC which compiled this code. The format of the - .ident string is patterned after the ones produced by native svr4 - C compilers. */ - -#define IDENT_ASM_OP ".ident" - -#define ASM_FILE_END(FILE) \ -do { \ - if (!flag_no_ident) \ - fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \ - IDENT_ASM_OP, version_string); \ - } while (0) - -/* Allow #sccs in preprocessor. */ - -#define SCCS_DIRECTIVE - -/* Output #ident as a .ident. */ - -#define ASM_OUTPUT_IDENT(FILE, NAME) \ - fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME); - -/* Use periods rather than dollar signs in special g++ assembler names. */ - -#define NO_DOLLAR_IN_LABEL - -/* Writing `int' for a bitfield forces int alignment for the structure. */ - -#define PCC_BITFIELD_TYPE_MATTERS 1 - -/* Implicit library calls should use memcpy, not bcopy, etc. */ - -#define TARGET_MEM_FUNCTIONS - -/* Handle #pragma weak and #pragma pack. */ - -#define HANDLE_SYSV_PRAGMA - -/* System V Release 4 uses DWARF debugging info. */ - -#define DWARF_DEBUGGING_INFO - -/* All ELF targets can support DWARF-2. */ -#ifndef DWARF2_DEBUGGING_INFO -#define DWARF2_DEBUGGING_INFO -#endif - -/* The numbers used to denote specific machine registers in the System V - Release 4 DWARF debugging information are quite likely to be totally - different from the numbers used in BSD stabs debugging information - for the same kind of target machine. Thus, we undefine the macro - DBX_REGISTER_NUMBER here as an extra inducement to get people to - provide proper machine-specific definitions of DBX_REGISTER_NUMBER - (which is also used to provide DWARF registers numbers in dwarfout.c) - in their tm.h files which include this file. */ - -#undef DBX_REGISTER_NUMBER - -/* Use DWARF debugging info by default. */ - -#ifndef PREFERRED_DEBUGGING_TYPE -#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG -#endif - -/* But allow STABS to be supoorted as well. */ -#include "dbxelf.h" - -/* Define the actual types of some ANSI-mandated types. (These - definitions should work for most SVR4 systems). */ - -#undef SIZE_TYPE -#define SIZE_TYPE "unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "int" - -#undef WCHAR_TYPE -#define WCHAR_TYPE "long int" - -#undef WCHAR_TYPE_SIZE -#define WCHAR_TYPE_SIZE BITS_PER_WORD - -/* This causes trouble, because it requires the host machine - to support ANSI C. */ -/* #define MULTIBYTE_CHARS */ - -#undef ASM_BYTE_OP -#define ASM_BYTE_OP ".byte" - -#undef SET_ASM_OP -#define SET_ASM_OP ".set" - -/* This is how to begin an assembly language file. Most svr4 assemblers want - at least a .file directive to come first, and some want to see a .version - directive come right after that. Here we just establish a default - which generates only the .file directive. If you need a .version - directive for any specific target, you should override this definition - in the target-specific file which includes this one. */ - -#undef ASM_FILE_START -#define ASM_FILE_START(FILE) \ - output_file_directive ((FILE), main_input_filename) - -/* This is how to allocate empty space in some section. The .zero - pseudo-op is used for this on most svr4 assemblers. */ - -#define SKIP_ASM_OP ".zero" - -#undef ASM_OUTPUT_SKIP -#define ASM_OUTPUT_SKIP(FILE,SIZE) \ - fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE)) - -/* The prefix to add to user-visible assembler symbols. - - For System V Release 4 the convention is *not* to prepend a leading - underscore onto user-level symbol names. */ - -#undef USER_LABEL_PREFIX -#define USER_LABEL_PREFIX "" - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - - For most svr4 systems, the convention is that any symbol which begins - with a period is not put into the linker symbol table by the assembler. */ - -#undef ASM_OUTPUT_INTERNAL_LABEL -#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \ -do { \ - fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \ -} while (0) - -/* This is how to store into the string LABEL - the symbol_ref name of an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - This is suitable for output with `assemble_name'. - - For most svr4 systems, the convention is that any symbol which begins - with a period is not put into the linker symbol table by the assembler. */ - -#undef ASM_GENERATE_INTERNAL_LABEL -#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \ -do { \ - sprintf (LABEL, "*.%s%d", PREFIX, (unsigned) (NUM)); \ -} while (0) - -/* Output the label which precedes a jumptable. Note that for all svr4 - systems where we actually generate jumptables (which is to say every - svr4 target except i386, where we use casesi instead) we put the jump- - tables into the .rodata section and since other stuff could have been - put into the .rodata section prior to any given jumptable, we have to - make sure that the location counter for the .rodata section gets pro- - perly re-aligned prior to the actual beginning of the jump table. */ - -#define ALIGN_ASM_OP ".align" - -#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL -#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \ - ASM_OUTPUT_ALIGN ((FILE), 2); -#endif - -#undef ASM_OUTPUT_CASE_LABEL -#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,JUMPTABLE) \ - do { \ - ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \ - ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \ - } while (0) - -/* The standard SVR4 assembler seems to require that certain builtin - library routines (e.g. .udiv) be explicitly declared as .globl - in each assembly file where they are referenced. */ - -#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ - ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0)) - -/* This says how to output assembler code to declare an - uninitialized external linkage data object. Under SVR4, - the linker seems to want the alignment of data objects - to depend on their types. We do exactly that here. */ - -#define COMMON_ASM_OP ".comm" - -#undef ASM_OUTPUT_ALIGNED_COMMON -#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ -do { \ - fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \ - assemble_name ((FILE), (NAME)); \ - fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \ -} while (0) - -/* This says how to output assembler code to declare an - uninitialized internal linkage data object. Under SVR4, - the linker seems to want the alignment of data objects - to depend on their types. We do exactly that here. */ - -#define LOCAL_ASM_OP ".local" - -#undef ASM_OUTPUT_ALIGNED_LOCAL -#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ -do { \ - fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \ - assemble_name ((FILE), (NAME)); \ - fprintf ((FILE), "\n"); \ - ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ -} while (0) - -/* Biggest alignment supported by the object file format of this - machine. Use this macro to limit the alignment which can be - specified using the `__attribute__ ((aligned (N)))' construct. If - not defined, the default value is `BIGGEST_ALIGNMENT'. */ - -#define MAX_OFILE_ALIGNMENT (32768*8) - -/* This is the pseudo-op used to generate a 32-bit word of data with a - specific value in some section. This is the same for all known svr4 - assemblers. */ - -#define INT_ASM_OP ".long" - -/* This is the pseudo-op used to generate a contiguous sequence of byte - values from a double-quoted string WITHOUT HAVING A TERMINATING NUL - AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */ - -#undef ASCII_DATA_ASM_OP -#define ASCII_DATA_ASM_OP ".ascii" - -/* Support const sections and the ctors and dtors sections for g++. - Note that there appears to be two different ways to support const - sections at the moment. You can either #define the symbol - READONLY_DATA_SECTION (giving it some code which switches to the - readonly data section) or else you can #define the symbols - EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and - SELECT_RTX_SECTION. We do both here just to be on the safe side. */ - -#define USE_CONST_SECTION 1 - -#define CONST_SECTION_ASM_OP ".section\t.rodata" - -/* Define the pseudo-ops used to switch to the .ctors and .dtors sections. - - Note that we want to give these sections the SHF_WRITE attribute - because these sections will actually contain data (i.e. tables of - addresses of functions in the current root executable or shared library - file) and, in the case of a shared library, the relocatable addresses - will have to be properly resolved/relocated (and then written into) by - the dynamic linker when it actually attaches the given shared library - to the executing process. (Note that on SVR4, you may wish to use the - `-z text' option to the ELF linker, when building a shared library, as - an additional check that you are doing everything right. But if you do - use the `-z text' option when building a shared library, you will get - errors unless the .ctors and .dtors sections are marked as writable - via the SHF_WRITE attribute.) */ - -#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\"" -#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\"" - -/* On svr4, we *do* have support for the .init and .fini sections, and we - can put stuff in there to be executed before and after `main'. We let - crtstuff.c and other files know this by defining the following symbols. - The definitions say how to change sections to the .init and .fini - sections. This is the same for all known svr4 assemblers. */ - -#define INIT_SECTION_ASM_OP ".section\t.init" -#define FINI_SECTION_ASM_OP ".section\t.fini" - -/* A default list of other sections which we might be "in" at any given - time. For targets that use additional sections (e.g. .tdesc) you - should override this definition in the target-specific file which - includes this file. */ - -#undef EXTRA_SECTIONS -#define EXTRA_SECTIONS in_const, in_ctors, in_dtors - -/* A default list of extra section function definitions. For targets - that use additional sections (e.g. .tdesc) you should override this - definition in the target-specific file which includes this file. */ - -#undef EXTRA_SECTION_FUNCTIONS -#define EXTRA_SECTION_FUNCTIONS \ - CONST_SECTION_FUNCTION \ - CTORS_SECTION_FUNCTION \ - DTORS_SECTION_FUNCTION - -#define READONLY_DATA_SECTION() const_section () - -extern void text_section (); - -#define CONST_SECTION_FUNCTION \ -void \ -const_section () \ -{ \ - if (!USE_CONST_SECTION) \ - text_section(); \ - else if (in_section != in_const) \ - { \ - fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \ - in_section = in_const; \ - } \ -} - -#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_FUNCTION \ -void \ -dtors_section () \ -{ \ - if (in_section != in_dtors) \ - { \ - fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ - in_section = in_dtors; \ - } \ -} - -/* Switch into a generic section. - - We make the section read-only and executable for a function decl, - read-only for a const data decl, and writable for a non-const data decl. - - If the section has already been defined, we must not - emit the attributes here. The SVR4 assembler does not - recognize section redefinitions. - If DECL is NULL, no attributes are emitted. */ - -#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \ -do { \ - static struct section_info \ - { \ - struct section_info *next; \ - char *name; \ - enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type; \ - } *sections; \ - struct section_info *s; \ - char *mode; \ - enum sect_enum type; \ - \ - for (s = sections; s; s = s->next) \ - if (!strcmp (NAME, s->name)) \ - break; \ - \ - if (DECL && TREE_CODE (DECL) == FUNCTION_DECL) \ - type = SECT_EXEC, mode = "ax"; \ - else if (DECL && DECL_READONLY_SECTION (DECL, RELOC)) \ - type = SECT_RO, mode = "a"; \ - else \ - type = SECT_RW, mode = "aw"; \ - \ - if (s == 0) \ - { \ - s = (struct section_info *) xmalloc (sizeof (struct section_info)); \ - s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME)); \ - strcpy (s->name, NAME); \ - s->type = type; \ - s->next = sections; \ - sections = s; \ - fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, mode); \ - } \ - else \ - { \ - if (DECL && s->type != type) \ - error_with_decl (DECL, "%s causes a section type conflict"); \ - \ - fprintf (FILE, ".section\t%s\n", NAME); \ - } \ -} while (0) - -#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) -#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL)) -#define UNIQUE_SECTION(DECL,RELOC) \ -do { \ - int len; \ - char *name, *string, *prefix; \ - \ - name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ - \ - if (! DECL_ONE_ONLY (DECL)) \ - { \ - prefix = "."; \ - if (TREE_CODE (DECL) == FUNCTION_DECL) \ - prefix = ".text."; \ - else if (DECL_READONLY_SECTION (DECL, RELOC)) \ - prefix = ".rodata."; \ - else \ - prefix = ".data."; \ - } \ - else if (TREE_CODE (DECL) == FUNCTION_DECL) \ - prefix = ".gnu.linkonce.t."; \ - else if (DECL_READONLY_SECTION (DECL, RELOC)) \ - prefix = ".gnu.linkonce.r."; \ - else \ - prefix = ".gnu.linkonce.d."; \ - \ - len = strlen (name) + strlen (prefix); \ - string = alloca (len + 1); \ - sprintf (string, "%s%s", prefix, name); \ - \ - DECL_SECTION_NAME (DECL) = build_string (len, string); \ -} while (0) -/* A C statement (sans semicolon) to output an element in the table of - global constructors. */ -#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ - do { \ - ctors_section (); \ - fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - -/* A C statement (sans semicolon) to output an element in the table of - global destructors. */ -#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ - do { \ - dtors_section (); \ - fprintf (FILE, "\t%s\t ", INT_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - -/* A C statement or statements to switch to the appropriate - section for output of DECL. DECL is either a `VAR_DECL' node - or a constant of some sort. RELOC indicates whether forming - the initial value of DECL requires link-time relocations. */ - -#define SELECT_SECTION(DECL,RELOC) \ -{ \ - if (flag_pic && RELOC) \ - data_section (); \ - else if (TREE_CODE (DECL) == STRING_CST) \ - { \ - if (! flag_writable_strings) \ - const_section (); \ - else \ - data_section (); \ - } \ - else if (TREE_CODE (DECL) == VAR_DECL) \ - { \ - if (! DECL_READONLY_SECTION (DECL, RELOC)) \ - data_section (); \ - else \ - const_section (); \ - } \ - else \ - const_section (); \ -} - -/* A C statement or statements to switch to the appropriate - section for output of RTX in mode MODE. RTX is some kind - of constant in RTL. The argument MODE is redundant except - in the case of a `const_int' rtx. Currently, these always - go into the const section. */ - -#undef SELECT_RTX_SECTION -#define SELECT_RTX_SECTION(MODE,RTX) const_section() - -/* 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. */ - -#define TYPE_ASM_OP ".type" -#define SIZE_ASM_OP ".size" - -/* This is how we tell the assembler that a symbol is weak. */ - -#define ASM_WEAKEN_LABEL(FILE,NAME) \ - do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \ - fputc ('\n', FILE); } 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). */ - -#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. */ - -#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ - do { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "function"); \ - putc ('\n', FILE); \ - ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ - ASM_OUTPUT_LABEL(FILE, NAME); \ - } while (0) - -/* Write the extra assembler code needed to declare an object properly. */ - -#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); \ - putc (',', FILE); \ - fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, \ - int_size_in_bytes (TREE_TYPE (DECL))); \ - fputc ('\n', FILE); \ - } \ - 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. */ - -#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); \ - putc (',', FILE); \ - fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, \ - int_size_in_bytes (TREE_TYPE (DECL))); \ - fputc ('\n', FILE); \ - } \ - } while (0) - -/* This is how to declare the size of a function. */ - -#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) - -/* A table of bytes codes used by the ASM_OUTPUT_ASCII and - ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table - corresponds to a particular byte value [0..255]. For any - given byte value, if the value in the corresponding table - position is zero, the given character can be output directly. - If the table value is 1, the byte must be output as a \ooo - octal escape. If the tables value is anything else, then the - byte value should be output as a \ followed by the value - in the table. Note that we can use standard UN*X escape - sequences for many control characters, but we don't use - \a to represent BEL because some svr4 assemblers (e.g. on - the i386) don't know about that. Also, we don't use \v - since some versions of gas, such as 2.2 did not accept it. */ - -#define ESCAPES \ -"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ -\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\ -\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\ -\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\ -\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ -\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ -\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\ -\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1" - -/* Some svr4 assemblers have a limit on the number of characters which - can appear in the operand of a .string directive. If your assembler - has such a limitation, you should define STRING_LIMIT to reflect that - limit. Note that at least some svr4 assemblers have a limit on the - actual number of bytes in the double-quoted string, and that they - count each character in an escape sequence as one byte. Thus, an - escape sequence like \377 would count as four bytes. - - If your target assembler doesn't support the .string directive, you - should define this to zero. -*/ - -#define STRING_LIMIT ((unsigned) 256) - -#define STRING_ASM_OP ".string" - -/* The routine used to output NUL terminated strings. We use a special - version of this for most svr4 targets because doing so makes the - generated assembly code more compact (and thus faster to assemble) - as well as more readable, especially for targets like the i386 - (where the only alternative is to output character sequences as - comma separated lists of numbers). */ - -#define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \ - do \ - { \ - register unsigned char *_limited_str = (unsigned char *) (STR); \ - register unsigned ch; \ - fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \ - for (; (ch = *_limited_str); _limited_str++) \ - { \ - register int escape; \ - switch (escape = ESCAPES[ch]) \ - { \ - case 0: \ - putc (ch, (FILE)); \ - break; \ - case 1: \ - fprintf ((FILE), "\\%03o", ch); \ - break; \ - default: \ - putc ('\\', (FILE)); \ - putc (escape, (FILE)); \ - break; \ - } \ - } \ - fprintf ((FILE), "\"\n"); \ - } \ - while (0) - -/* The routine used to output sequences of byte values. We use a special - version of this for most svr4 targets because doing so makes the - generated assembly code more compact (and thus faster to assemble) - as well as more readable. Note that if we find subparts of the - character sequence which end with NUL (and which are shorter than - STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */ - -#undef ASM_OUTPUT_ASCII -#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \ - do \ - { \ - register unsigned char *_ascii_bytes = (unsigned char *) (STR); \ - register unsigned char *limit = _ascii_bytes + (LENGTH); \ - register unsigned bytes_in_chunk = 0; \ - for (; _ascii_bytes < limit; _ascii_bytes++) \ - { \ - register unsigned char *p; \ - if (bytes_in_chunk >= 60) \ - { \ - fprintf ((FILE), "\"\n"); \ - bytes_in_chunk = 0; \ - } \ - for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \ - continue; \ - if (p < limit && (p - _ascii_bytes) <= (long)STRING_LIMIT) \ - { \ - if (bytes_in_chunk > 0) \ - { \ - fprintf ((FILE), "\"\n"); \ - bytes_in_chunk = 0; \ - } \ - ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \ - _ascii_bytes = p; \ - } \ - else \ - { \ - register int escape; \ - register unsigned ch; \ - if (bytes_in_chunk == 0) \ - fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \ - switch (escape = ESCAPES[ch = *_ascii_bytes]) \ - { \ - case 0: \ - putc (ch, (FILE)); \ - bytes_in_chunk++; \ - break; \ - case 1: \ - fprintf ((FILE), "\\%03o", ch); \ - bytes_in_chunk += 4; \ - break; \ - default: \ - putc ('\\', (FILE)); \ - putc (escape, (FILE)); \ - bytes_in_chunk += 2; \ - break; \ - } \ - } \ - } \ - if (bytes_in_chunk > 0) \ - fprintf ((FILE), "\"\n"); \ - } \ - while (0) - -/* All SVR4 targets use the ELF object file format. */ -#define OBJECT_FORMAT_ELF |