/* as.h - global header file
- Copyright (C) 1987, 1990, 1991, 1992 Free Software Foundation, Inc.
+ Copyright (C) 1987, 90, 91, 92, 93, 94, 95, 96, 97, 98, 1999
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with GAS; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+ along with GAS; see the file COPYING. If not, write to the Free
+ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
#ifndef GAS
#define GAS 1
* If TEST is #defined, then we are testing a module: #define COMMON as "".
*/
-/* These #defines are for parameters of entire assembler. */
+#include "config.h"
-/* These #includes are for type definitions etc. */
+/* This is the code recommended in the autoconf documentation, almost
+ verbatim. If it doesn't work for you, let me know, and notify
+/* Added #undef for DJ Delorie. The right fix is to ensure that as.h
+ is included first, before even any system header files, in all files
+ that use it. KR 1994.11.03 */
+/* Added void* version for STDC case. This is to be compatible with
+ the declaration in bison.simple, used for m68k operand parsing.
+ --KR 1995.08.08 */
+/* Force void* decl for hpux. This is what Bison uses. --KR 1995.08.16 */
+
+/* AIX requires this to be the first thing in the file. */
+#ifdef __GNUC__
+# ifndef alloca
+# ifdef __STDC__
+extern void *alloca ();
+# else
+extern char *alloca ();
+# endif
+# endif
+#else
+# if HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+# if !defined (__STDC__) && !defined (__hpux)
+extern char *alloca ();
+# else
+extern void *alloca ();
+# endif /* __STDC__, __hpux */
+# endif /* alloca */
+# endif /* _AIX */
+# endif /* HAVE_ALLOCA_H */
+#endif
-#include "config.h"
+/* Now, tend to the rest of the configuration. */
+/* System include files first... */
#include <stdio.h>
+#include <ctype.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#else
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_SYS_TYPES_H
+/* for size_t, pid_t */
+#include <sys/types.h>
+#endif
+
+#include <getopt.h>
+/* The first getopt value for machine-independent long options.
+ 150 isn't special; it's just an arbitrary non-ASCII char value. */
+#define OPTION_STD_BASE 150
+/* The first getopt value for machine-dependent long options.
+ 170 gives the standard options room to grow. */
+#define OPTION_MD_BASE 170
+
#ifdef DEBUG
#undef NDEBUG
#endif
+#if !defined (__GNUC__) || __GNUC_MINOR__ <= 5
+#define __PRETTY_FUNCTION__ ((char*)0)
+#endif
+#if 0
+
+/* Handle lossage with assert.h. */
+#ifndef BROKEN_ASSERT
#include <assert.h>
+#else /* BROKEN_ASSERT */
+#ifndef NDEBUG
+#define assert(p) ((p) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
+#else
+#define assert(p) ((p), 0)
+#endif
+#endif /* BROKEN_ASSERT */
+
+#else
+
+#define assert(P) ((P) ? 0 : (as_assert (__FILE__, __LINE__, __PRETTY_FUNCTION__), 0))
+#undef abort
+#define abort() as_abort (__FILE__, __LINE__, __PRETTY_FUNCTION__)
+#endif
+
+
+/* Now GNU header files... */
#include <ansidecl.h>
#ifdef BFD_ASSEMBLER
#include <bfd.h>
#endif
-#include "host.h"
-#include "flonum.h"
+#include <libiberty.h>
+
+/* Define the standard progress macros. */
+#include <progress.h>
+
+/* This doesn't get taken care of anywhere. */
+#ifndef __MWERKS__ /* Metrowerks C chokes on the "defined (inline)" */
+#if !defined (__GNUC__) && !defined (inline)
+#define inline
+#endif
+#endif /* !__MWERKS__ */
+
+/* Other stuff from config.h. */
+#ifdef NEED_DECLARATION_STRSTR
+extern char *strstr ();
+#endif
+#ifdef NEED_DECLARATION_MALLOC
+extern PTR malloc ();
+extern PTR realloc ();
+#endif
+#ifdef NEED_DECLARATION_FREE
+extern void free ();
+#endif
+#ifdef NEED_DECLARATION_ERRNO
+extern int errno;
+#endif
+#ifdef NEED_DECLARATION_ENVIRON
+extern char **environ;
+#endif
+
+/* This is needed for VMS. */
+#if ! defined (HAVE_UNLINK) && defined (HAVE_REMOVE)
+#define unlink remove
+#endif
+
+/* Hack to make "gcc -Wall" not complain about obstack macros. */
+#if !defined (memcpy) && !defined (bcopy)
+#define bcopy(src,dest,size) memcpy(dest,src,size)
+#endif
/* Make Saber happier on obstack.h. */
#ifdef SABER
#define __FILE__ "unknown"
#endif /* __FILE__ */
-#ifndef __STDC__
-#ifndef const
-#define const
+#ifndef FOPEN_WB
+#ifdef GO32
+#include "fopen-bin.h"
+#else
+#include "fopen-same.h"
#endif
-#ifndef volatile
-#define volatile
#endif
-#endif /* ! __STDC__ */
-#ifndef FOPEN_WB
-#include "fopen-same.h"
+#ifndef EXIT_SUCCESS
+#define EXIT_SUCCESS 0
+#define EXIT_FAILURE 1
#endif
#define obstack_chunk_alloc xmalloc
#define xfree free
+#include "asintl.h"
+
#define BAD_CASE(val) \
{ \
- as_fatal("Case value %ld unexpected at line %d of file \"%s\"\n", \
+ as_fatal(_("Case value %ld unexpected at line %d of file \"%s\"\n"), \
(long) val, __LINE__, __FILE__); \
}
\f
+#include "flonum.h"
/* These are assembler-wide concepts */
#else
#define know(p) /* know() checks are no-op.ed */
#endif
-
-#if defined (BROKEN_ASSERT) && !defined (NDEBUG)
-/* Used on machines where the "assert" macro is buggy. (For example, on the
- RS/6000, Reiser-cpp substitution is done to put the condition into a
- string, so if the condition contains a string, parse errors result.) If
- the condition fails, just drop core file. */
-#undef assert
-#define assert(p) ((p) ? 0 : (abort (), 0))
-#endif
\f
/* input_scrub.c */
#ifdef MANY_SEGMENTS
#include "bfd.h"
-#define N_SEGMENTS 10
-#define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E9)
-#define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9
+#define N_SEGMENTS 40
+#define SEG_NORMAL(x) ((x) >= SEG_E0 && (x) <= SEG_E39)
+#define SEG_LIST SEG_E0,SEG_E1,SEG_E2,SEG_E3,SEG_E4,SEG_E5,SEG_E6,SEG_E7,SEG_E8,SEG_E9,\
+ SEG_E10,SEG_E11,SEG_E12,SEG_E13,SEG_E14,SEG_E15,SEG_E16,SEG_E17,SEG_E18,SEG_E19,\
+ SEG_E20,SEG_E21,SEG_E22,SEG_E23,SEG_E24,SEG_E25,SEG_E26,SEG_E27,SEG_E28,SEG_E29,\
+ SEG_E30,SEG_E31,SEG_E32,SEG_E33,SEG_E34,SEG_E35,SEG_E36,SEG_E37,SEG_E38,SEG_E39
#define SEG_TEXT SEG_E0
#define SEG_DATA SEG_E1
#define SEG_BSS SEG_E2
+#define SEG_LAST SEG_E39
#else
#define N_SEGMENTS 3
#define SEG_NORMAL(x) ((x) == SEG_TEXT || (x) == SEG_DATA || (x) == SEG_BSS)
#ifdef BFD_ASSEMBLER
#define segment_name(SEG) bfd_get_section_name (stdoutput, SEG)
#else
-extern char *const seg_name[];
+extern char const *const seg_name[];
#define segment_name(SEG) seg_name[(int) (SEG)]
#endif
extern segT reg_section, expr_section;
/* Shouldn't these be eliminated someday? */
extern segT text_section, data_section, bss_section;
-#define absolute_section (&bfd_abs_section)
-#define undefined_section (&bfd_und_section)
+#define absolute_section bfd_abs_section_ptr
+#define undefined_section bfd_und_section_ptr
#else
#define reg_section SEG_REGISTER
#define expr_section SEG_EXPR
/* relax() */
-typedef enum _relax_state
+enum _relax_state
{
/* Variable chars to be repeated fr_offset times.
Fr_symbol unused. Used with fr_offset == 0 for a
constant length frag. */
rs_fill = 1,
- /* Align: Fr_offset: power of 2. 1 variable char: fill character. */
+ /* Align. The fr_offset field holds the power of 2 to which to
+ align. The fr_var field holds the number of characters in the
+ fill pattern. The fr_subtype field holds the maximum number of
+ bytes to skip when aligning, or 0 if there is no maximum. */
rs_align,
+ /* Align code. The fr_offset field holds the power of 2 to which
+ to align. This type is only generated by machine specific
+ code, which is normally responsible for handling the fill
+ pattern. The fr_subtype field holds the maximum number of
+ bytes to skip when aligning, or 0 if there is no maximum. */
+ rs_align_code,
+
/* Org: Fr_offset, fr_symbol: address. 1 variable char: fill
character. */
rs_org,
- rs_machine_dependent
-
#ifndef WORKING_DOT_WORD
/* JF: gunpoint */
- , rs_broken_word
+ rs_broken_word,
#endif
- } relax_stateT;
-/* typedef unsigned char relax_substateT; */
-/* JF this is more likely to leave the end of a struct frag on an align
- boundry. Be very careful with this. */
-typedef unsigned long relax_substateT;
+ /* machine-specific relaxable (or similarly alterable) instruction */
+ rs_machine_dependent,
+
+ /* .space directive with expression operand that needs to be computed
+ later. Similar to rs_org, but different.
+ fr_symbol: operand
+ 1 variable char: fill character */
+ rs_space,
+
+ /* A DWARF leb128 value; only ELF uses this. The subtype is 0 for
+ unsigned, 1 for signed. */
+ rs_leb128,
+
+ /* Exception frame information which we may be able to optimize. */
+ rs_cfa
+ };
+
+typedef enum _relax_state relax_stateT;
+
+/* This type is used in prototypes, so it can't be a type that will be
+ widened for argument passing. */
+typedef unsigned int relax_substateT;
/* Enough bits for address, but still an integer type.
Could be a problem, cross-assembling for 64-bit machines. */
typedef addressT relax_addressT;
\f
+/* main program "as.c" (command arguments etc) */
-/* frags.c */
+COMMON unsigned char flag_no_comments; /* -f */
+COMMON unsigned char flag_debug; /* -D */
+COMMON unsigned char flag_signed_overflow_ok; /* -J */
+#ifndef WORKING_DOT_WORD
+COMMON unsigned char flag_warn_displacement; /* -K */
+#endif
-/*
- * A code fragment (frag) is some known number of chars, followed by some
- * unknown number of chars. Typically the unknown number of chars is an
- * instruction address whose size is yet unknown. We always know the greatest
- * possible size the unknown number of chars may become, and reserve that
- * much room at the end of the frag.
- * Once created, frags do not change address during assembly.
- * We chain the frags in (a) forward-linked list(s). The object-file address
- * of the 1st char of a frag is generally not known until after relax().
- * Many things at assembly time describe an address by {object-file-address
- * of a particular frag}+offset.
-
- BUG: it may be smarter to have a single pointer off to various different
- notes for different frag kinds. See how code pans
- */
-struct frag
-{
- /* Object file address. */
- addressT fr_address;
- /* Chain forward; ascending address order. Rooted in frch_root. */
- struct frag *fr_next;
-
- /* (Fixed) number of chars we know we have. May be 0. */
- offsetT fr_fix;
- /* (Variable) number of chars after above. May be 0. */
- offsetT fr_var;
- /* For variable-length tail. */
- struct symbol *fr_symbol;
- /* For variable-length tail. */
- offsetT fr_offset;
- /* Points to opcode low addr byte, for relaxation. */
- char *fr_opcode;
-
-#ifndef NO_LISTING
- struct list_info_struct *line;
-#endif
-
- /* What state is my tail in? */
- relax_stateT fr_type;
- relax_substateT fr_subtype;
-
- /* These are needed only on the NS32K machines */
- char fr_pcrel_adjust;
- char fr_bsr;
-
- /* Chars begin here.
- One day we will compile fr_literal[0]. */
- char fr_literal[1];
-};
-
-#define SIZEOF_STRUCT_FRAG \
-((int)zero_address_frag.fr_literal-(int)&zero_address_frag)
-/* We want to say fr_literal[0] above. */
+/* True if local symbols should be retained. */
+COMMON int flag_keep_locals; /* -L */
-typedef struct frag fragS;
+/* True if we are assembling in MRI mode. */
+COMMON int flag_mri;
-/* Current frag we are building. This frag is incomplete. It is, however,
- included in frchain_now. The fr_fix field is bogus; instead, use:
- obstack_next_free(&frags)-frag_now->fr_literal. */
-COMMON fragS *frag_now;
-#define frag_now_fix() ((char*)obstack_next_free (&frags) - frag_now->fr_literal)
+/* True if we are assembling in m68k MRI mode. */
+COMMON int flag_m68k_mri;
-/* For foreign-segment symbol fixups. */
-COMMON fragS zero_address_frag;
-/* For local common (N_BSS segment) fixups. */
-COMMON fragS bss_address_frag;
+/* Should the data section be made read-only and appended to the text
+ section? */
+COMMON unsigned char flag_readonly_data_in_text; /* -R */
-/* main program "as.c" (command arguments etc) */
+/* True if warnings should be inhibited. */
+COMMON int flag_no_warnings; /* -W */
+
+/* True if we should attempt to generate output even if non-fatal errors
+ are detected. */
+COMMON unsigned char flag_always_generate_output; /* -Z */
+
+/* This is true if the assembler should output time and space usage. */
+COMMON unsigned char flag_print_statistics;
-/* ['x'] TRUE if "-x" seen. */
-COMMON char flagseen[128];
-COMMON unsigned char flag_readonly_data_in_text;
-COMMON unsigned char flag_suppress_warnings;
-COMMON unsigned char flag_always_generate_output;
+/* True if local absolute symbols are to be stripped. */
+COMMON int flag_strip_local_absolute;
+
+/* True if we should generate a traditional format object file. */
+COMMON int flag_traditional_format;
/* name of emitted object file */
COMMON char *out_file_name;
+/* name of file defining extensions to the basic instruction set */
+COMMON char *insttbl_file_name;
+
/* TRUE if we need a second pass. */
COMMON int need_pass_2;
/* TRUE if we should produce a listing. */
extern int listing;
+/* Type of debugging information we should generate. We currently
+ support stabs, ECOFF, and DWARF2. */
+
+enum debug_info_type
+ {
+ DEBUG_UNSPECIFIED,
+ DEBUG_NONE,
+ DEBUG_STABS,
+ DEBUG_ECOFF,
+ DEBUG_DWARF,
+ DEBUG_DWARF2
+ };
+
+extern enum debug_info_type debug_type;
+\f
+/* Maximum level of macro nesting. */
+extern int max_macro_nest;
+
+/* Obstack chunk size. Keep large for efficient space use, make small to
+ increase malloc calls for monitoring memory allocation. */
+extern int chunksize;
+
struct _pseudo_type
{
/* assembler mnemonic, lower case, no '.' */
- char *poc_name;
+ const char *poc_name;
/* Do the work */
void (*poc_handler) PARAMS ((int));
/* Value to pass to handler */
typedef struct _pseudo_type pseudo_typeS;
-#ifdef BFD_ASSEMBLER_xxx
-struct lineno_struct
- {
- alent line;
- fragS *frag;
- struct lineno_struct *next;
- };
-typedef struct lineno_struct lineno;
+/* Prefer varargs for non-ANSI compiler, since some will barf if the
+ ellipsis definition is used with a no-arguments declaration. */
+#if defined (HAVE_VARARGS_H) && !defined (__STDC__)
+#undef HAVE_STDARG_H
#endif
-#if defined (__STDC__) && !defined(NO_STDARG)
+#if defined (HAVE_STDARG_H)
+#define USE_STDARG
+#endif
+#if !defined (USE_STDARG) && defined (HAVE_VARARGS_H)
+#define USE_VARARGS
+#endif
-#if __GNUC__ >= 2
+#ifdef USE_STDARG
+#if (__GNUC__ >= 2) && !defined(VMS)
/* for use with -Wformat */
-#define PRINTF_LIKE(FCN) void FCN (const char *format, ...) \
- __attribute__ ((format (printf, 1, 2)))
-#else /* ANSI C with stdarg, but not GNU C */
-#define PRINTF_LIKE(FCN) void FCN (const char *format, ...)
+
+#if __GNUC_MINOR__ < 6
+/* Support for double underscores in attribute names was added in gcc
+ 2.6, so avoid them if we are using an earlier version. */
+#define __printf__ printf
+#define __format__ format
#endif
-#else /* not ANSI C, or not stdarg */
+
+#define PRINTF_LIKE(FCN) \
+ void FCN (const char *format, ...) \
+ __attribute__ ((__format__ (__printf__, 1, 2)))
+#define PRINTF_WHERE_LIKE(FCN) \
+ void FCN (char *file, unsigned int line, const char *format, ...) \
+ __attribute__ ((__format__ (__printf__, 3, 4)))
+
+#else /* __GNUC__ < 2 || defined(VMS) */
+
+#define PRINTF_LIKE(FCN) void FCN PARAMS ((const char *format, ...))
+#define PRINTF_WHERE_LIKE(FCN) void FCN PARAMS ((char *file, \
+ unsigned int line, \
+ const char *format, ...))
+
+#endif /* __GNUC__ < 2 || defined(VMS) */
+
+#else /* ! USE_STDARG */
+
#define PRINTF_LIKE(FCN) void FCN ()
-#endif
+#define PRINTF_WHERE_LIKE(FCN) void FCN ()
+
+#endif /* ! USE_STDARG */
PRINTF_LIKE (as_bad);
PRINTF_LIKE (as_fatal);
PRINTF_LIKE (as_tsktsk);
PRINTF_LIKE (as_warn);
+PRINTF_WHERE_LIKE (as_bad_where);
+PRINTF_WHERE_LIKE (as_warn_where);
-#if defined (__STDC__) && !defined (NO_STDARG)
-#if __GNUC__ >= 2
-void as_bad_where (char *file, unsigned int line, const char *format, ...)
- __attribute__ ((format (printf, 3, 4)));
-#else /* ANSI C with stdarg, but not GNU C */
-void as_bad_where (char *file, unsigned int line, const char *format, ...);
-#endif
-#else /* not ANSI C, or not stdarg */
-void as_bad_where ();
-#endif
+void as_assert PARAMS ((const char *, int, const char *));
+void as_abort PARAMS ((const char *, int, const char *));
void fprint_value PARAMS ((FILE *file, addressT value));
void sprint_value PARAMS ((char *buf, addressT value));
char *input_scrub_include_file PARAMS ((char *filename, char *position));
char *input_scrub_new_file PARAMS ((char *filename));
char *input_scrub_next_buffer PARAMS ((char **bufp));
-#if 0 /* incompatible with solaris 2 native cc */
-char *strstr PARAMS ((const char *s, const char *wanted));
-#endif
-char *xmalloc PARAMS ((unsigned long size));
-char *xrealloc PARAMS ((char *ptr, unsigned long n));
-int do_scrub_next_char PARAMS ((int (*get) (void), void (*unget) (int)));
+int do_scrub_chars PARAMS ((int (*get) (char *, int), char *to, int tolen));
int gen_to_words PARAMS ((LITTLENUM_TYPE * words, int precision,
long exponent_bits));
int had_err PARAMS ((void));
int ignore_input PARAMS ((void));
-int scrub_from_file PARAMS ((void));
-int scrub_from_string PARAMS ((void));
+void cond_finish_check PARAMS ((int));
+void cond_exit_macro PARAMS ((int));
int seen_at_least_1_file PARAMS ((void));
void app_pop PARAMS ((char *arg));
void as_howmuch PARAMS ((FILE * stream));
-void as_perror PARAMS ((char *gripe, char *filename));
+void as_perror PARAMS ((const char *gripe, const char *filename));
void as_where PARAMS ((char **namep, unsigned int *linep));
void bump_line_counters PARAMS ((void));
-void do_scrub_begin PARAMS ((void));
+void do_scrub_begin PARAMS ((int));
void input_scrub_begin PARAMS ((void));
void input_scrub_close PARAMS ((void));
void input_scrub_end PARAMS ((void));
-void new_logical_line PARAMS ((char *fname, int line_number));
-void scrub_to_file PARAMS ((int ch));
-void scrub_to_string PARAMS ((int ch));
+int new_logical_line PARAMS ((char *fname, int line_number));
void subsegs_begin PARAMS ((void));
void subseg_change PARAMS ((segT seg, int subseg));
segT subseg_new PARAMS ((const char *name, subsegT subseg));
segT subseg_force_new PARAMS ((const char *name, subsegT subseg));
void subseg_set PARAMS ((segT seg, subsegT subseg));
+#ifdef BFD_ASSEMBLER
+segT subseg_get PARAMS ((const char *, int));
+#endif
+int subseg_text_p PARAMS ((segT));
+
+void start_dependencies PARAMS ((char *));
+void register_dependency PARAMS ((char *));
+void print_dependencies PARAMS ((void));
struct expressionS;
struct fix;
-struct symbol;
+typedef struct symbol symbolS;
+struct relax_type;
+typedef struct frag fragS;
#ifdef BFD_ASSEMBLER
/* literal.c */
-valueT add_to_literal_pool PARAMS ((struct symbol *, valueT, segT, int));
+valueT add_to_literal_pool PARAMS ((symbolS *, valueT, segT, int));
#endif
+int check_eh_frame PARAMS ((struct expressionS *, unsigned int *));
+int eh_frame_estimate_size_before_relax PARAMS ((fragS *));
+int eh_frame_relax_frag PARAMS ((fragS *));
+void eh_frame_convert_frag PARAMS ((fragS *));
+
+#include "expr.h" /* Before targ-*.h */
+
/* this one starts the chain of target dependant headers */
#include "targ-env.h"
-#include "expr.h"
-#include "struc-symbol.h"
#include "write.h"
#include "frags.h"
#include "hash.h"
#include "tc.h"
#include "obj.h"
+#ifdef USE_EMULATIONS
+#include "emul.h"
+#endif
#include "listing.h"
-#ifdef BFD_ASSEMBLER
-/* Someday perhaps this will be selectable at run-time. */
-#if defined (OBJ_AOUT) || defined (OBJ_BOUT)
-#define OUTPUT_FLAVOR bfd_target_aout_flavour
+#ifndef LOCAL_LABELS_DOLLAR
+#define LOCAL_LABELS_DOLLAR 0
#endif
-#ifdef OBJ_COFF
-#define OUTPUT_FLAVOR bfd_target_coff_flavour
-#endif
-#ifdef OBJ_ECOFF
-#define OUTPUT_FLAVOR bfd_target_ecoff_flavour
+
+#ifndef LOCAL_LABELS_FB
+#define LOCAL_LABELS_FB 0
#endif
-#ifdef OBJ_ELF
-#define OUTPUT_FLAVOR bfd_target_elf_flavour
+
+#ifndef TEXT_SECTION_NAME
+#define TEXT_SECTION_NAME ".text"
+#define DATA_SECTION_NAME ".data"
+#define BSS_SECTION_NAME ".bss"
#endif
-#endif /* BFD_ASSEMBLER */
#endif /* GAS */
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