/* Operating system specific defines to be used when targeting GCC for some
generic System V Release 4 system.
- Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
+ Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
Contributed by Ron Guilmette (rfg@monkeys.com).
Renamed and changed to suit Dynix/ptx v4 and later.
Modified by Tim Wright (timw@sequent.com).
+ Modified by Janis Johnson (janis@us.ibm.com).
This file is part of GNU CC.
/* 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
+/* Use DWARF debugging info by default. */
+
+#undef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
+
/* Cpp, assembler, linker, library, and startfile spec's. */
*/
#undef ASM_SPEC
+#ifdef USE_GAS
+#define ASM_SPEC \
+ "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+#else
#define ASM_SPEC \
- "-no_0f_fix %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*}"
+ "-no_0f_fix -no_eflags_chk %{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
%{!p:-Y P,/lib:/usr/lib}} \
%{Qy:} %{!Qn:-Qy}"
-/* Gcc automatically adds in one of the files /lib/values-Xc.o,
- /lib/values-Xa.o, or /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 /lib/values-Xc.o
+ or /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
%{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}} \
+ %{!ansi: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
+/* Don't use bcopy, which doesn't handle overlaps before DYNIX/ptx 4.6. */
-/* System V Release 4 uses DWARF debugging info. */
-
-#define DWARF_DEBUGGING_INFO
+#undef HAVE_BCOPY
/* The numbers used to denote specific machine registers in the System V
Release 4 DWARF debugging information are quite likely to be totally
#undef DBX_REGISTER_NUMBER
-/* gas on SVR4 supports the use of .stabs. Permit -gstabs to be used
- in general, although it will only work when using gas. */
-
-#define DBX_DEBUGGING_INFO
-
-/* Use DWARF debugging info by default. */
-
-#ifndef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
-#endif
-
-/* Make LBRAC and RBRAC addresses relative to the start of the
- function. The native Solaris stabs debugging format works this
- way, gdb expects it, and it reduces the number of relocation
- entries. */
-
-#define DBX_BLOCKS_FUNCTION_RELATIVE 1
-
-/* When using stabs, gcc2_compiled must be a stabs entry, not an
- ordinary symbol, or gdb won't see it. The stabs entry must be
- before the N_SO in order for gdb to find it. */
-
-#define ASM_IDENTIFY_GCC(FILE) \
-do \
- { \
- if (write_symbols != DBX_DEBUG) \
- fputs ("gcc2_compiled.:\n", FILE); \
- else \
- fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE); \
- } \
-while (0)
-
/* Like block addresses, stabs line numbers are relative to the
current function. */
+#undef ASM_OUTPUT_SOURCE_LINE
#define ASM_OUTPUT_SOURCE_LINE(file, line) \
do \
{ \
} \
while (0)
-/* In order for relative line numbers to work, we must output the
- stabs entry for the function name first. */
-
-#define DBX_FUNCTION_FIRST
-
/* Generate a blank trailing N_SO to mark the end of the .o file, since
we can't depend upon the linker to mark .o file boundaries with
embedded stabs. */
+#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
fprintf (FILE, \
"\t.text\n\t.stabs \"\",%d,0,0,.Letext\n.Letext:\n", N_SO)
#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, 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"
+/* This says how to output assembler code to declare an uninitialized
+ external linkage data item. There's a bug in the DYNIX/ptx linker
+ (PR 254649) when the alignment for such an object is specified, so
+ ignore the ALIGN parameter. */
#undef ASM_OUTPUT_ALIGNED_COMMON
#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
do { \
- fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \
+ fprintf ((FILE), "%s", COMMON_ASM_OP); \
assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
+ fprintf ((FILE), ",%u\n", (SIZE)); \
} 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 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.
- This is currently only used to support section attributes.
-
- 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. */
-#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
- fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, \
- (DECL) && TREE_CODE (DECL) == FUNCTION_DECL ? "ax" : \
- (DECL) && DECL_READONLY_SECTION (DECL, RELOC) ? "a" : "aw")
-
-
-/* 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"
-
-/* 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); \
- 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. 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) <= 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
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