-/* svr4.h -- operating system specific defines to be used when
- targeting GCC for some generic System V Release 4 system.
- Copyright (C) 1991 Free Software Foundation, Inc.
+/* Operating system specific defines to be used when targeting GCC for some
+ generic System V Release 4 system.
+ Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999,
+ 2000, 2001, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Contributed by Ron Guilmette (rfg@monkeys.com).
- Written by Ron Guilmette (rfg@ncd.com).
+This file is part of GCC.
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
+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 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
- To use this file, make up a file with a name like:
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
- ?????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:
+/* To use this file, make up a line like that in config.gcc:
- #include "?????.h"
- #include "svr4.h"
+ tm_file="$tm_file elfos.h svr4.h MACHINE/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.
+ where MACHINE is replaced by the name of the basic hardware that you
+ are targeting for. Then, in the file MACHINE/svr4.h, put any really
+ system-specific defines (or overrides of defines) which you find that
+ you need.
*/
-/* For the sake of libgcc2.c, indicate target supports atexit. */
-#define HAVE_ATEXIT
+/* Define a symbol indicating that we are using svr4.h. */
+#define USING_SVR4_H
/* Cpp, assembler, linker, library, and startfile spec's. */
-z* options (for the linker). Note however that there is no such
thing as a -T option for svr4. */
-#define SWITCH_TAKES_ARG(CHAR) \
- ( (CHAR) == 'D' \
- || (CHAR) == 'U' \
- || (CHAR) == 'o' \
- || (CHAR) == 'e' \
- || (CHAR) == 'u' \
- || (CHAR) == 'I' \
- || (CHAR) == 'm' \
- || (CHAR) == 'L' \
- || (CHAR) == 'A' \
- || (CHAR) == 'h' \
+#undef SWITCH_TAKES_ARG
+#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) \
- (!strcmp (STR, "include") || !strcmp (STR, "imacros") \
- || !strcmp (STR, "aux-info"))
-
-/* 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
+ (DEFAULT_WORD_SWITCH_TAKES_ARG (STR) \
+ && strcmp (STR, "Tdata") && strcmp (STR, "Ttext") \
+ && strcmp (STR, "Tbss"))
-/* Provide an ASM_SPEC appropriate for svr4. Here we try to support as
+/* Provide an ASM_SPEC appropriate for svr4.
+ If we're not using GAS, 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
+ 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
Note that gcc doesn't allow a space to follow -Y in a -Ym,* or -Yd,*
option.
+
+ The svr4 assembler wants '-' on the command line if it's expected to
+ read its stdin.
*/
-#undef ASM_SPEC
-#define ASM_SPEC \
- "%{V} %{v:%{!V:-V}} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+#ifdef USE_GAS
+#define SVR4_ASM_SPEC \
+ "%{v:-V} %{Wa,*:%*}"
+#else
+#define SVR4_ASM_SPEC \
+ "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+#endif
-/* 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_SPEC
+#define ASM_SPEC SVR4_ASM_SPEC
-#undef ASM_FINAL_SPEC
-#define ASM_FINAL_SPEC "%{pipe:-}"
+#define AS_NEEDS_DASH_FOR_PIPED_INPUT
+
+/* Under svr4, the normal location of the `ld' and `as' programs is the
+ /usr/ccs/bin directory. */
+
+#ifndef CROSS_DIRECTORY_STRUCTURE
+#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. */
-#undef MD_STARTFILE_PREFIX
+#ifndef CROSS_DIRECTORY_STRUCTURE
+#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) followed by
- our own magical crtend.o file (see crtstuff.c) which provides part of
- the support for getting C++ file-scope static object constructed before
+ 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 LIB_SPEC
-#define LIB_SPEC \
- "%{!shared:%{!symbolic:-lc}} \
- crtend.o%s \
- %{!shared:%{!symbolic:%{pg:gcrtn.o}%{!pg:crtn.o%s}}}"
+#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
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
- -h*, -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.
+ -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, in gcc.c. 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.
not being done. */
#undef LINK_SPEC
-#define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
- %{b} %{Wl,*:%*} \
+#ifdef CROSS_DIRECTORY_STRUCTURE
+#define LINK_SPEC "%{h*} %{v:-V} \
+ %{b} \
%{static:-dn -Bstatic} \
- %{shared:-G -dy} \
- %{symbolic:-Bsymbolic -G -dy} \
+ %{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} \
+ %{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.
-*/
+/* Gcc automatically adds in one of the files /usr/ccs/lib/values-Xc.o
+ or /usr/ccs/lib/values-Xa.o for each final link step (depending
+ upon the other gcc options selected, such as -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 ASM_FILE_END(FILE) \
-do { \
- fprintf ((FILE), "\t.ident\t\"GCC: (GNU) %s\"\n", \
- 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.ident \"%s\"\n", 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
-
-/* System V Release 4 uses DWARF debugging info. */
-
-#define DWARF_DEBUGGING_INFO
+ %{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:values-Xa.o%s} \
+ crtbegin.o%s"
/* The numbers used to denote specific machine registers in the System V
Release 4 DWARF debugging information are quite likely to be totally
/* Define the actual types of some ANSI-mandated types. (These
definitions should work for most SVR4 systems). */
-#undef SIZE_TYPE
+#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
-#undef PTRDIFF_TYPE
+#undef PTRDIFF_TYPE
#define PTRDIFF_TYPE "int"
-#undef WCHAR_TYPE
+#undef WCHAR_TYPE
#define WCHAR_TYPE "long int"
-#undef WCHAR_TYPE_SIZE
+#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))
-
-/* This is how to output a reference to a user-level label named NAME.
- `assemble_name' uses this.
-
- For System V Release 4 the convention is *not* to prepend a leading
- underscore onto user-level symbol names. */
-
-#undef ASM_OUTPUT_LABELREF
-#define ASM_OUTPUT_LABELREF(FILE,NAME) fprintf (FILE, "%s", NAME)
-
-/* 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, 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)
-
-/* 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 CTORS_SECTION_ASM_OP ".section\t.ctors,\"a\",@progbits"
-#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"a\",@progbits"
-
-/* On svr4, we *do* have support for the .init section, and we can put
- stuff in there to be executed before `main'. We let crtstuff.c and
- other files know this by defining the following symbol. The definition
- says how to change sections to the .init section. This is the same
- for all know svr4 assemblers. */
-
-#define INIT_SECTION_ASM_OP ".section\t.init"
-
-/* 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; \
- } \
-}
-
-/* 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 (TREE_CODE (DECL) == STRING_CST) \
- { \
- if (! flag_writable_strings) \
- const_section (); \
- else \
- data_section (); \
- } \
- else if (TREE_CODE (DECL) == VAR_DECL) \
- { \
- if ((flag_pic && RELOC) \
- || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL)) \
- 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"
-#define WEAK_ASM_OP ".weak"
-
-/* 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); \
- if (!flag_inhibit_size_directive) \
- { \
- 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)
-
-/* 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. */
-
-#define ESCAPES \
-"\1\1\1\1\1\1\1\1btnvfr\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) <= 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)
+#define TARGET_POSIX_IO
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