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- /* svr4.h -- operating system specific defines to be used when
- targeting GCC for some generic System V Release 4 system.
- Copyright (C) 1991, 1994 Free Software Foundation, Inc.
- Contributed by Ron Guilmette (rfg@netcom.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, 675 Mass Ave, Cambridge, MA 02139, 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) \
- ( (CHAR) == 'D' \
- || (CHAR) == 'U' \
- || (CHAR) == 'o' \
- || (CHAR) == 'e' \
- || (CHAR) == 'u' \
- || (CHAR) == 'I' \
- || (CHAR) == 'm' \
- || (CHAR) == 'L' \
- || (CHAR) == 'A' \
- || (CHAR) == 'h' \
- || (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:%{!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 "%{pipe:-}"
-
- /* Under svr4, the normal location of the `ld' and `as' programs is the
- /usr/ccs/bin directory. */
-
- #undef MD_EXEC_PREFIX
- #define MD_EXEC_PREFIX "/usr/ccs/bin/"
-
- /* Under svr4, the normal location of the various *crt*.o files is the
- /usr/ccs/lib directory. */
-
- #undef MD_STARTFILE_PREFIX
- #define MD_STARTFILE_PREFIX "/usr/ccs/lib/"
-
- /* 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
- 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}}}"
-
- /* 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
- -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.
-
- 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
- #define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
- %{b} %{Wl,*:%*} \
- %{static:-dn -Bstatic} \
- %{shared:-G -dy} \
- %{symbolic:-Bsymbolic -G -dy} \
- %{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}"
-
- /* 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 { \
- 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
-
- /* 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
-
- /* 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))
-
- /* 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)
-
- /* 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)
-
- /* 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) \
- || !DECL_INITIAL (DECL) \
- || (DECL_INITIAL (DECL) != error_mark_node \
- && !TREE_CONSTANT (DECL_INITIAL (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); \
- 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. */
-
- #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. */
-
- #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)
-