/* read.c - read a source file -
- Copyright (C) 1986, 1987, 1990, 1991, 1993 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003 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. */
#if 0
-#define MASK_CHAR (0xFF) /* If your chars aren't 8 bits, you will
- change this a bit. But then, GNU isn't
- spozed to run on your machine anyway.
- (RMS is so shortsighted sometimes.)
- */
+/* If your chars aren't 8 bits, you will change this a bit.
+ But then, GNU isn't spozed to run on your machine anyway.
+ (RMS is so shortsighted sometimes.) */
+#define MASK_CHAR (0xFF)
#else
-#define MASK_CHAR ((int)(unsigned char)-1)
+#define MASK_CHAR ((int)(unsigned char) -1)
#endif
-
/* This is the largest known floating point format (for now). It will
- grow when we do 4361 style flonums. */
-
+ grow when we do 4361 style flonums. */
#define MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT (16)
/* Routines that read assembler source text to build spagetti in memory.
Another group of these functions is in the expr.c module. */
-/* for isdigit() */
-#include <ctype.h>
-
#include "as.h"
+#include "safe-ctype.h"
#include "subsegs.h"
-
+#include "sb.h"
+#include "macro.h"
#include "obstack.h"
#include "listing.h"
-
-/* We need this, despite the apparent object format dependency, since
- it defines stab types, which all object formats can use now. */
-
-#include "aout/stab_gnu.h"
+#include "ecoff.h"
+#include "dw2gencfi.h"
#ifndef TC_START_LABEL
-#define TC_START_LABEL(x,y) (x==':')
+#define TC_START_LABEL(x,y) (x == ':')
#endif
-/* The NOP_OPCODE is for the alignment fill value.
- * fill it a nop instruction so that the disassembler does not choke
- * on it
- */
-#ifndef NOP_OPCODE
-#define NOP_OPCODE 0x00
+/* Set by the object-format or the target. */
+#ifndef TC_IMPLICIT_LCOMM_ALIGNMENT
+#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) \
+ do \
+ { \
+ if ((SIZE) >= 8) \
+ (P2VAR) = 3; \
+ else if ((SIZE) >= 4) \
+ (P2VAR) = 2; \
+ else if ((SIZE) >= 2) \
+ (P2VAR) = 1; \
+ else \
+ (P2VAR) = 0; \
+ } \
+ while (0)
#endif
-char *input_line_pointer; /*->next char of source file to parse. */
+char *input_line_pointer; /*->next char of source file to parse. */
#if BITS_PER_CHAR != 8
/* The following table is indexed by[(char)] and will break if
#define LEX_AT 0
#endif
-/* used by is_... macros. our ctype[] */
-const char lex_type[256] =
-{
+#ifndef LEX_BR
+/* The RS/6000 assembler uses {,},[,] as parts of symbol names. */
+#define LEX_BR 0
+#endif
+
+#ifndef LEX_PCT
+/* The Delta 68k assembler permits % inside label names. */
+#define LEX_PCT 0
+#endif
+
+#ifndef LEX_QM
+/* The PowerPC Windows NT assemblers permits ? inside label names. */
+#define LEX_QM 0
+#endif
+
+#ifndef LEX_HASH
+/* The IA-64 assembler uses # as a suffix designating a symbol. We include
+ it in the symbol and strip it out in tc_canonicalize_symbol_name. */
+#define LEX_HASH 0
+#endif
+
+#ifndef LEX_DOLLAR
+/* The a29k assembler does not permits labels to start with $. */
+#define LEX_DOLLAR 3
+#endif
+
+#ifndef LEX_TILDE
+/* The Delta 68k assembler permits ~ at start of label names. */
+#define LEX_TILDE 0
+#endif
+
+/* Used by is_... macros. our ctype[]. */
+char lex_type[256] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* @ABCDEFGHIJKLMNO */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* PQRSTUVWXYZ[\]^_ */
- 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
- 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
+ 0, 0, 0, LEX_HASH, LEX_DOLLAR, LEX_PCT, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, LEX_QM, /* 0123456789:;<=>? */
LEX_AT, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* @ABCDEFGHIJKLMNO */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 3, /* PQRSTUVWXYZ[\]^_ */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, 0, 3, /* PQRSTUVWXYZ[\]^_ */
0, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* `abcdefghijklmno */
- 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, /* pqrstuvwxyz{|}~. */
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, LEX_BR, 0, LEX_BR, LEX_TILDE, 0, /* pqrstuvwxyz{|}~. */
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3
};
-
-/*
- * In: a character.
- * Out: 1 if this character ends a line.
- */
-#define _ (0)
-char is_end_of_line[256] =
-{
+/* In: a character.
+ Out: 1 if this character ends a line. */
+char is_end_of_line[256] = {
#ifdef CR_EOL
- _, _, _, _, _, _, _, _, _, _, 99, _, _, 99, _, _, /* @abcdefghijklmno */
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, /* @abcdefghijklmno */
#else
- _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, _, /* @abcdefghijklmno */
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, /* @abcdefghijklmno */
#endif
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
-#ifdef TC_HPPA
- _,99, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* _!"#$%&'()*+,-./ */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* 0123456789:;<=>? */
-#else
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, 99, _, _, _, _, /* 0123456789:;<=>? */
-#endif
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
- _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* _!"#$%&'()*+,-./ */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0123456789:;<=>? */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* */
};
-#undef _
-/* Functions private to this file. */
+#ifdef IGNORE_OPCODE_CASE
+char original_case_string[128];
+#endif
+
+/* Functions private to this file. */
-static char *buffer; /* 1st char of each buffer of lines is here. */
-static char *buffer_limit; /*->1 + last char in buffer. */
+static char *buffer; /* 1st char of each buffer of lines is here. */
+static char *buffer_limit; /*->1 + last char in buffer. */
-int target_big_endian;
+/* TARGET_BYTES_BIG_ENDIAN is required to be defined to either 0 or 1
+ in the tc-<CPU>.h file. See the "Porting GAS" section of the
+ internals manual. */
+int target_big_endian = TARGET_BYTES_BIG_ENDIAN;
-static char *old_buffer; /* JF a hack */
-static char *old_input;
-static char *old_limit;
+/* Variables for handling include file directory table. */
-/* Variables for handling include file directory list. */
+/* Table of pointers to directories to search for .include's. */
+char **include_dirs;
-char **include_dirs; /* List of pointers to directories to
- search for .include's */
-int include_dir_count; /* How many are in the list */
-int include_dir_maxlen = 1;/* Length of longest in list */
+/* How many are in the table. */
+int include_dir_count;
+
+/* Length of longest in table. */
+int include_dir_maxlen = 1;
#ifndef WORKING_DOT_WORD
struct broken_word *broken_words;
int new_broken_words;
#endif
-static char *demand_copy_string PARAMS ((int *lenP));
-int is_it_end_of_statement PARAMS ((void));
+/* The current offset into the absolute section. We don't try to
+ build frags in the absolute section, since no data can be stored
+ there. We just keep track of the current offset. */
+addressT abs_section_offset;
+
+/* If this line had an MRI style label, it is stored in this variable.
+ This is used by some of the MRI pseudo-ops. */
+symbolS *line_label;
+
+/* This global variable is used to support MRI common sections. We
+ translate such sections into a common symbol. This variable is
+ non-NULL when we are in an MRI common section. */
+symbolS *mri_common_symbol;
+
+/* In MRI mode, after a dc.b pseudo-op with an odd number of bytes, we
+ need to align to an even byte boundary unless the next pseudo-op is
+ dc.b, ds.b, or dcb.b. This variable is set to 1 if an alignment
+ may be needed. */
+static int mri_pending_align;
+
+#ifndef NO_LISTING
+#ifdef OBJ_ELF
+/* This variable is set to be non-zero if the next string we see might
+ be the name of the source file in DWARF debugging information. See
+ the comment in emit_expr for the format we look for. */
+static int dwarf_file_string;
+#endif
+#endif
+
+static void cons_worker PARAMS ((int, int));
+static int scrub_from_string PARAMS ((char *, int));
+static void do_align PARAMS ((int, char *, int, int));
+static void s_align PARAMS ((int, int));
+static void s_lcomm_internal PARAMS ((int, int));
+static int hex_float PARAMS ((int, char *));
+static inline int sizeof_sleb128 PARAMS ((offsetT));
+static inline int sizeof_uleb128 PARAMS ((valueT));
+static inline int output_sleb128 PARAMS ((char *, offsetT));
+static inline int output_uleb128 PARAMS ((char *, valueT));
+static inline int output_big_sleb128 PARAMS ((char *, LITTLENUM_TYPE *, int));
+static inline int output_big_uleb128 PARAMS ((char *, LITTLENUM_TYPE *, int));
+static int output_big_leb128 PARAMS ((char *, LITTLENUM_TYPE *, int, int));
+static void do_org PARAMS ((segT, expressionS *, int));
+char *demand_copy_string PARAMS ((int *lenP));
static segT get_segmented_expression PARAMS ((expressionS *expP));
static segT get_known_segmented_expression PARAMS ((expressionS * expP));
static void pobegin PARAMS ((void));
+static int get_line_sb PARAMS ((sb *));
+static void generate_file_debug PARAMS ((void));
\f
-
void
read_begin ()
{
/* Something close -- but not too close -- to a multiple of 1024.
The debugging malloc I'm using has 24 bytes of overhead. */
- obstack_begin (¬es, 5090);
- obstack_begin (&cond_obstack, 990);
+ obstack_begin (¬es, chunksize);
+ obstack_begin (&cond_obstack, chunksize);
- /* Use machine dependent syntax */
+ /* Use machine dependent syntax. */
for (p = line_separator_chars; *p; p++)
is_end_of_line[(unsigned char) *p] = 1;
- /* Use more. FIXME-SOMEDAY. */
+ /* Use more. FIXME-SOMEDAY. */
+
+ if (flag_mri)
+ lex_type['?'] = 3;
}
\f
-/* set up pseudo-op tables */
+/* Set up pseudo-op tables. */
-struct hash_control *po_hash;
+static struct hash_control *po_hash;
-static const pseudo_typeS potable[] =
-{
+static const pseudo_typeS potable[] = {
{"abort", s_abort, 0},
{"align", s_align_ptwo, 0},
{"ascii", stringer, 0},
{"asciz", stringer, 1},
-/* block */
+ {"balign", s_align_bytes, 0},
+ {"balignw", s_align_bytes, -2},
+ {"balignl", s_align_bytes, -4},
+/* block */
{"byte", cons, 1},
{"comm", s_comm, 0},
+ {"common", s_mri_common, 0},
+ {"common.s", s_mri_common, 1},
{"data", s_data, 0},
+ {"dc", cons, 2},
+ {"dc.b", cons, 1},
+ {"dc.d", float_cons, 'd'},
+ {"dc.l", cons, 4},
+ {"dc.s", float_cons, 'f'},
+ {"dc.w", cons, 2},
+ {"dc.x", float_cons, 'x'},
+ {"dcb", s_space, 2},
+ {"dcb.b", s_space, 1},
+ {"dcb.d", s_float_space, 'd'},
+ {"dcb.l", s_space, 4},
+ {"dcb.s", s_float_space, 'f'},
+ {"dcb.w", s_space, 2},
+ {"dcb.x", s_float_space, 'x'},
+ {"ds", s_space, 2},
+ {"ds.b", s_space, 1},
+ {"ds.d", s_space, 8},
+ {"ds.l", s_space, 4},
+ {"ds.p", s_space, 12},
+ {"ds.s", s_space, 4},
+ {"ds.w", s_space, 2},
+ {"ds.x", s_space, 12},
+ {"debug", s_ignore, 0},
#ifdef S_SET_DESC
{"desc", s_desc, 0},
#endif
-/* dim */
+/* dim */
{"double", float_cons, 'd'},
-/* dsect */
- {"eject", listing_eject, 0}, /* Formfeed listing */
+/* dsect */
+ {"eject", listing_eject, 0}, /* Formfeed listing. */
{"else", s_else, 0},
+ {"elsec", s_else, 0},
+ {"elseif", s_elseif, (int) O_ne},
{"end", s_end, 0},
+ {"endc", s_endif, 0},
+ {"endfunc", s_func, 1},
{"endif", s_endif, 0},
-/* endef */
+ {"endr", s_bad_endr, 0},
+/* endef */
{"equ", s_set, 0},
-/* err */
-/* extend */
- {"extern", s_ignore, 0}, /* We treat all undef as ext */
+ {"equiv", s_set, 1},
+ {"err", s_err, 0},
+ {"exitm", s_mexit, 0},
+/* extend */
+ {"extern", s_ignore, 0}, /* We treat all undef as ext. */
{"appfile", s_app_file, 1},
{"appline", s_app_line, 0},
+ {"fail", s_fail, 0},
{"file", s_app_file, 0},
{"fill", s_fill, 0},
{"float", float_cons, 'f'},
+ {"format", s_ignore, 0},
+ {"func", s_func, 0},
{"global", s_globl, 0},
{"globl", s_globl, 0},
{"hword", cons, 2},
- {"if", s_if, 0},
+ {"if", s_if, (int) O_ne},
+ {"ifc", s_ifc, 0},
{"ifdef", s_ifdef, 0},
+ {"ifeq", s_if, (int) O_eq},
{"ifeqs", s_ifeqs, 0},
+ {"ifge", s_if, (int) O_ge},
+ {"ifgt", s_if, (int) O_gt},
+ {"ifle", s_if, (int) O_le},
+ {"iflt", s_if, (int) O_lt},
+ {"ifnc", s_ifc, 1},
{"ifndef", s_ifdef, 1},
+ {"ifne", s_if, (int) O_ne},
{"ifnes", s_ifeqs, 1},
{"ifnotdef", s_ifdef, 1},
+ {"incbin", s_incbin, 0},
{"include", s_include, 0},
{"int", cons, 4},
+ {"irp", s_irp, 0},
+ {"irep", s_irp, 0},
+ {"irpc", s_irp, 1},
+ {"irepc", s_irp, 1},
{"lcomm", s_lcomm, 0},
- {"lflags", listing_flags, 0}, /* Listing flags */
- {"list", listing_list, 1}, /* Turn listing on */
+ {"lflags", listing_flags, 0}, /* Listing flags. */
+ {"linkonce", s_linkonce, 0},
+ {"list", listing_list, 1}, /* Turn listing on. */
+ {"llen", listing_psize, 1},
{"long", cons, 4},
{"lsym", s_lsym, 0},
- {"nolist", listing_list, 0}, /* Turn listing off */
+ {"macro", s_macro, 0},
+ {"mexit", s_mexit, 0},
+ {"mri", s_mri, 0},
+ {".mri", s_mri, 0}, /* Special case so .mri works in MRI mode. */
+ {"name", s_ignore, 0},
+ {"noformat", s_ignore, 0},
+ {"nolist", listing_list, 0}, /* Turn listing off. */
+ {"nopage", listing_nopage, 0},
{"octa", cons, 16},
+ {"offset", s_struct, 0},
{"org", s_org, 0},
- {"psize", listing_psize, 0}, /* set paper size */
-/* print */
+ {"p2align", s_align_ptwo, 0},
+ {"p2alignw", s_align_ptwo, -2},
+ {"p2alignl", s_align_ptwo, -4},
+ {"page", listing_eject, 0},
+ {"plen", listing_psize, 0},
+ {"print", s_print, 0},
+ {"psize", listing_psize, 0}, /* Set paper size. */
+ {"purgem", s_purgem, 0},
{"quad", cons, 8},
- {"sbttl", listing_title, 1}, /* Subtitle of listing */
-/* scl */
-/* sect */
+ {"rep", s_rept, 0},
+ {"rept", s_rept, 0},
+ {"rva", s_rva, 4},
+ {"sbttl", listing_title, 1}, /* Subtitle of listing. */
+/* scl */
+/* sect */
{"set", s_set, 0},
{"short", cons, 2},
{"single", float_cons, 'f'},
-/* size */
+/* size */
{"space", s_space, 0},
+ {"skip", s_space, 0},
+ {"sleb128", s_leb128, 1},
+ {"spc", s_ignore, 0},
{"stabd", s_stab, 'd'},
{"stabn", s_stab, 'n'},
{"stabs", s_stab, 's'},
{"string", stringer, 1},
-/* tag */
+ {"struct", s_struct, 0},
+/* tag */
{"text", s_text, 0},
- {"title", listing_title, 0}, /* Listing title */
-/* type */
-/* use */
-/* val */
+
+ /* This is for gcc to use. It's only just been added (2/94), so gcc
+ won't be able to use it for a while -- probably a year or more.
+ But once this has been released, check with gcc maintainers
+ before deleting it or even changing the spelling. */
+ {"this_GCC_requires_the_GNU_assembler", s_ignore, 0},
+ /* If we're folding case -- done for some targets, not necessarily
+ all -- the above string in an input file will be converted to
+ this one. Match it either way... */
+ {"this_gcc_requires_the_gnu_assembler", s_ignore, 0},
+
+ {"title", listing_title, 0}, /* Listing title. */
+ {"ttl", listing_title, 0},
+/* type */
+ {"uleb128", s_leb128, 0},
+/* use */
+/* val */
+ {"xcom", s_comm, 0},
+ {"xdef", s_globl, 0},
+ {"xref", s_ignore, 0},
{"xstabs", s_xstab, 's'},
{"word", cons, 2},
- {NULL} /* end sentinel */
+ {"zero", s_space, 0},
+ {NULL, NULL, 0} /* End sentinel. */
};
-static void
-pobegin ()
+static int pop_override_ok = 0;
+static const char *pop_table_name;
+
+void
+pop_insert (table)
+ const pseudo_typeS *table;
{
- const char *errtxt; /* error text */
+ const char *errtxt;
const pseudo_typeS *pop;
-
- po_hash = hash_new ();
-
- /* Do the target-specific pseudo ops. */
- for (pop = md_pseudo_table; pop->poc_name; pop++)
+ for (pop = table; pop->poc_name; pop++)
{
errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop);
- if (errtxt)
- {
- as_fatal ("error constructing md pseudo-op table");
- } /* on error */
- } /* for each op */
+ if (errtxt && (!pop_override_ok || strcmp (errtxt, "exists")))
+ as_fatal (_("error constructing %s pseudo-op table: %s"), pop_table_name,
+ errtxt);
+ }
+}
- /* Now object specific. Skip any that were in the target table. */
- for (pop = obj_pseudo_table; pop->poc_name; pop++)
- {
- errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop);
- if (errtxt)
- {
- if (!strcmp (errtxt, "exists"))
- {
-#ifdef DIE_ON_OVERRIDES
- as_fatal ("pseudo op \".%s\" overridden.\n", pop->poc_name);
-#endif /* DIE_ON_OVERRIDES */
- continue; /* OK if target table overrides. */
- }
- else
- {
- as_fatal ("error constructing obj pseudo-op table");
- } /* if overridden */
- } /* on error */
- } /* for each op */
+#ifndef md_pop_insert
+#define md_pop_insert() pop_insert(md_pseudo_table)
+#endif
- /* Now portable ones. Skip any that we've seen already. */
- for (pop = potable; pop->poc_name; pop++)
- {
- errtxt = hash_insert (po_hash, pop->poc_name, (char *) pop);
- if (errtxt)
- {
- if (!strcmp (errtxt, "exists"))
- {
-#ifdef DIE_ON_OVERRIDES
- as_fatal ("pseudo op \".%s\" overridden.\n", pop->poc_name);
-#endif /* DIE_ON_OVERRIDES */
- continue; /* OK if target table overrides. */
- }
- else
- {
- as_fatal ("error constructing obj pseudo-op table");
- } /* if overridden */
- } /* on error */
- } /* for each op */
+#ifndef obj_pop_insert
+#define obj_pop_insert() pop_insert(obj_pseudo_table)
+#endif
+
+#ifndef cfi_pop_insert
+#define cfi_pop_insert() pop_insert(cfi_pseudo_table)
+#endif
+
+static void
+pobegin ()
+{
+ po_hash = hash_new ();
- return;
-} /* pobegin() */
+ /* Do the target-specific pseudo ops. */
+ pop_table_name = "md";
+ md_pop_insert ();
+
+ /* Now object specific. Skip any that were in the target table. */
+ pop_table_name = "obj";
+ pop_override_ok = 1;
+ obj_pop_insert ();
+
+ /* Now portable ones. Skip any that we've seen already. */
+ pop_table_name = "standard";
+ pop_insert (potable);
+
+#ifdef TARGET_USE_CFIPOP
+ pop_table_name = "cfi";
+ pop_override_ok = 1;
+ cfi_pop_insert ();
+#endif
+}
\f
#define HANDLE_CONDITIONAL_ASSEMBLY() \
if (ignore_input ()) \
{ \
- while (! is_end_of_line[(unsigned char) *input_line_pointer++]) \
+ while (!is_end_of_line[(unsigned char) *input_line_pointer++]) \
if (input_line_pointer == buffer_limit) \
break; \
continue; \
}
+/* This function is used when scrubbing the characters between #APP
+ and #NO_APP. */
-/* read_a_source_file()
- *
- * We read the file, putting things into a web that
- * represents what we have been reading.
- */
-void
+static char *scrub_string;
+static char *scrub_string_end;
+
+static int
+scrub_from_string (buf, buflen)
+ char *buf;
+ int buflen;
+{
+ int copy;
+
+ copy = scrub_string_end - scrub_string;
+ if (copy > buflen)
+ copy = buflen;
+ memcpy (buf, scrub_string, copy);
+ scrub_string += copy;
+ return copy;
+}
+
+/* We read the file, putting things into a web that represents what we
+ have been reading. */
+void
read_a_source_file (name)
char *name;
{
register char c;
- register char *s; /* string of symbol, '\0' appended */
+ register char *s; /* String of symbol, '\0' appended. */
register int temp;
pseudo_typeS *pop;
+#ifdef WARN_COMMENTS
+ found_comment = 0;
+#endif
+
buffer = input_scrub_new_file (name);
listing_file (name);
- listing_newline ("");
+ listing_newline (NULL);
+ register_dependency (name);
+
+ /* Generate debugging information before we've read anything in to denote
+ this file as the "main" source file and not a subordinate one
+ (e.g. N_SO vs N_SOL in stabs). */
+ generate_file_debug ();
while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0)
- { /* We have another line to parse. */
- know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */
- contin: /* JF this goto is my fault I admit it.
- Someone brave please re-write the whole
- input section here? Pleeze??? */
+ { /* We have another line to parse. */
+ know (buffer_limit[-1] == '\n'); /* Must have a sentinel. */
+
while (input_line_pointer < buffer_limit)
{
- /* We have more of this buffer to parse. */
+ /* We have more of this buffer to parse. */
- /*
- * We now have input_line_pointer->1st char of next line.
- * If input_line_pointer [-1] == '\n' then we just
- * scanned another line: so bump line counters.
- */
- if (input_line_pointer[-1] == '\n')
+ /* We now have input_line_pointer->1st char of next line.
+ If input_line_pointer [-1] == '\n' then we just
+ scanned another line: so bump line counters. */
+ if (is_end_of_line[(unsigned char) input_line_pointer[-1]])
{
- bump_line_counters ();
+#ifdef md_start_line_hook
+ md_start_line_hook ();
+#endif
+ if (input_line_pointer[-1] == '\n')
+ bump_line_counters ();
+
+ line_label = NULL;
-#ifdef MRI
- /* Text at the start of a line must be a label, we run down and stick a colon in */
- if (is_name_beginner (*input_line_pointer))
+ if (LABELS_WITHOUT_COLONS || flag_m68k_mri)
{
- char *line_start = input_line_pointer;
- char c = get_symbol_end ();
- colon (line_start);
- *input_line_pointer = c;
- if (c == ':')
- input_line_pointer++;
+ /* Text at the start of a line must be a label, we
+ run down and stick a colon in. */
+ if (is_name_beginner (*input_line_pointer))
+ {
+ char *line_start = input_line_pointer;
+ char c;
+ int mri_line_macro;
- }
+ LISTING_NEWLINE ();
+ HANDLE_CONDITIONAL_ASSEMBLY ();
+
+ c = get_symbol_end ();
+
+ /* In MRI mode, the EQU and MACRO pseudoops must
+ be handled specially. */
+ mri_line_macro = 0;
+ if (flag_m68k_mri)
+ {
+ char *rest = input_line_pointer + 1;
+
+ if (*rest == ':')
+ ++rest;
+ if (*rest == ' ' || *rest == '\t')
+ ++rest;
+ if ((strncasecmp (rest, "EQU", 3) == 0
+ || strncasecmp (rest, "SET", 3) == 0)
+ && (rest[3] == ' ' || rest[3] == '\t'))
+ {
+ input_line_pointer = rest + 3;
+ equals (line_start,
+ strncasecmp (rest, "SET", 3) == 0);
+ continue;
+ }
+ if (strncasecmp (rest, "MACRO", 5) == 0
+ && (rest[5] == ' '
+ || rest[5] == '\t'
+ || is_end_of_line[(unsigned char) rest[5]]))
+ mri_line_macro = 1;
+ }
+
+ /* In MRI mode, we need to handle the MACRO
+ pseudo-op specially: we don't want to put the
+ symbol in the symbol table. */
+ if (!mri_line_macro
+#ifdef TC_START_LABEL_WITHOUT_COLON
+ && TC_START_LABEL_WITHOUT_COLON(c,
+ input_line_pointer)
#endif
- }
+ )
+ line_label = colon (line_start);
+ else
+ line_label = symbol_create (line_start,
+ absolute_section,
+ (valueT) 0,
+ &zero_address_frag);
+ *input_line_pointer = c;
+ if (c == ':')
+ input_line_pointer++;
+ }
+ }
+ }
- /*
- * We are at the begining of a line, or similar place.
- * We expect a well-formed assembler statement.
- * A "symbol-name:" is a statement.
- *
- * Depending on what compiler is used, the order of these tests
- * may vary to catch most common case 1st.
- * Each test is independent of all other tests at the (top) level.
- * PLEASE make a compiler that doesn't use this assembler.
- * It is crufty to waste a compiler's time encoding things for this
- * assembler, which then wastes more time decoding it.
- * (And communicating via (linear) files is silly!
- * If you must pass stuff, please pass a tree!)
- */
+ /* We are at the begining of a line, or similar place.
+ We expect a well-formed assembler statement.
+ A "symbol-name:" is a statement.
+
+ Depending on what compiler is used, the order of these tests
+ may vary to catch most common case 1st.
+ Each test is independent of all other tests at the (top) level.
+ PLEASE make a compiler that doesn't use this assembler.
+ It is crufty to waste a compiler's time encoding things for this
+ assembler, which then wastes more time decoding it.
+ (And communicating via (linear) files is silly!
+ If you must pass stuff, please pass a tree!) */
if ((c = *input_line_pointer++) == '\t'
|| c == ' '
|| c == '\f'
|| c == 0)
+ c = *input_line_pointer++;
+
+ know (c != ' '); /* No further leading whitespace. */
+
+#ifndef NO_LISTING
+ /* If listing is on, and we are expanding a macro, then give
+ the listing code the contents of the expanded line. */
+ if (listing)
{
- c = *input_line_pointer++;
+ if ((listing & LISTING_MACEXP) && macro_nest > 0)
+ {
+ char *copy;
+ int len;
+
+ /* Find the end of the current expanded macro line. */
+ for (s = input_line_pointer - 1; *s; ++s)
+ if (is_end_of_line[(unsigned char) *s])
+ break;
+
+ /* Copy it for safe keeping. Also give an indication of
+ how much macro nesting is involved at this point. */
+ len = s - (input_line_pointer - 1);
+ copy = (char *) xmalloc (len + macro_nest + 2);
+ memset (copy, '>', macro_nest);
+ copy[macro_nest] = ' ';
+ memcpy (copy + macro_nest + 1, input_line_pointer - 1, len);
+ copy[macro_nest + 1 + len] = '\0';
+
+ /* Install the line with the listing facility. */
+ listing_newline (copy);
+ }
+ else
+ listing_newline (NULL);
}
- know (c != ' '); /* No further leading whitespace. */
- LISTING_NEWLINE ();
- /*
- * C is the 1st significant character.
- * Input_line_pointer points after that character.
- */
+#endif
+ /* C is the 1st significant character.
+ Input_line_pointer points after that character. */
if (is_name_beginner (c))
- { /* want user-defined label or pseudo/opcode */
+ {
+ /* Want user-defined label or pseudo/opcode. */
HANDLE_CONDITIONAL_ASSEMBLY ();
s = --input_line_pointer;
- c = get_symbol_end (); /* name's delimiter */
- /*
- * C is character after symbol.
- * That character's place in the input line is now '\0'.
- * S points to the beginning of the symbol.
- * [In case of pseudo-op, s->'.'.]
- * Input_line_pointer->'\0' where c was.
- */
- if (TC_START_LABEL(c, input_line_pointer))
+ c = get_symbol_end (); /* name's delimiter. */
+
+ /* C is character after symbol.
+ That character's place in the input line is now '\0'.
+ S points to the beginning of the symbol.
+ [In case of pseudo-op, s->'.'.]
+ Input_line_pointer->'\0' where c was. */
+ if (TC_START_LABEL (c, input_line_pointer))
{
- colon (s); /* user-defined label */
- *input_line_pointer++ = ':'; /* Put ':' back for error messages' sake. */
- /* Input_line_pointer->after ':'. */
- SKIP_WHITESPACE ();
+ if (flag_m68k_mri)
+ {
+ char *rest = input_line_pointer + 1;
+
+ /* In MRI mode, \tsym: set 0 is permitted. */
+ if (*rest == ':')
+ ++rest;
+ if (*rest == ' ' || *rest == '\t')
+ ++rest;
+
+ if ((strncasecmp (rest, "EQU", 3) == 0
+ || strncasecmp (rest, "SET", 3) == 0)
+ && (rest[3] == ' ' || rest[3] == '\t'))
+ {
+ input_line_pointer = rest + 3;
+ equals (s, 1);
+ continue;
+ }
+ }
+ line_label = colon (s); /* User-defined label. */
+ /* Put ':' back for error messages' sake. */
+ *input_line_pointer++ = ':';
+#ifdef tc_check_label
+ tc_check_label (line_label);
+#endif
+ /* Input_line_pointer->after ':'. */
+ SKIP_WHITESPACE ();
}
else if (c == '='
- || (input_line_pointer[1] == '='
+ || ((c == ' ' || c == '\t')
+ && input_line_pointer[1] == '='
#ifdef TC_EQUAL_IN_INSN
- && ! TC_EQUAL_IN_INSN (c, input_line_pointer)
+ && !TC_EQUAL_IN_INSN (c, input_line_pointer)
#endif
))
{
- equals (s);
+ equals (s, 1);
demand_empty_rest_of_line ();
}
else
- { /* expect pseudo-op or machine instruction */
-#ifdef MRI
- if (!done_pseudo (s))
+ {
+ /* Expect pseudo-op or machine instruction. */
+ pop = NULL;
-#else
+#ifdef IGNORE_OPCODE_CASE
+ {
+ char *s2 = s;
- pop = NULL;
+ strncpy (original_case_string, s2, sizeof (original_case_string));
+ original_case_string[sizeof (original_case_string) - 1] = 0;
-#ifdef NO_PSEUDO_DOT
- /* The m88k uses pseudo-ops without a period. */
- pop = (pseudo_typeS *) hash_find (po_hash, s);
- if (pop != NULL && pop->poc_handler == NULL)
- pop = NULL;
+ while (*s2)
+ {
+ *s2 = TOLOWER (*s2);
+ s2++;
+ }
+ }
#endif
+ if (NO_PSEUDO_DOT || flag_m68k_mri)
+ {
+ /* The MRI assembler and the m88k use pseudo-ops
+ without a period. */
+ pop = (pseudo_typeS *) hash_find (po_hash, s);
+ if (pop != NULL && pop->poc_handler == NULL)
+ pop = NULL;
+ }
- if (pop != NULL || *s == '.')
+ if (pop != NULL
+ || (!flag_m68k_mri && *s == '.'))
{
- /*
- * PSEUDO - OP.
- *
- * WARNING: c has next char, which may be end-of-line.
- * We lookup the pseudo-op table with s+1 because we
- * already know that the pseudo-op begins with a '.'.
- */
+ /* PSEUDO - OP.
+
+ WARNING: c has next char, which may be end-of-line.
+ We lookup the pseudo-op table with s+1 because we
+ already know that the pseudo-op begins with a '.'. */
if (pop == NULL)
pop = (pseudo_typeS *) hash_find (po_hash, s + 1);
- /* Print the error msg now, while we still can */
+ /* In MRI mode, we may need to insert an
+ automatic alignment directive. What a hack
+ this is. */
+ if (mri_pending_align
+ && (pop == NULL
+ || !((pop->poc_handler == cons
+ && pop->poc_val == 1)
+ || (pop->poc_handler == s_space
+ && pop->poc_val == 1)
+#ifdef tc_conditional_pseudoop
+ || tc_conditional_pseudoop (pop)
+#endif
+ || pop->poc_handler == s_if
+ || pop->poc_handler == s_ifdef
+ || pop->poc_handler == s_ifc
+ || pop->poc_handler == s_ifeqs
+ || pop->poc_handler == s_else
+ || pop->poc_handler == s_endif
+ || pop->poc_handler == s_globl
+ || pop->poc_handler == s_ignore)))
+ {
+ do_align (1, (char *) NULL, 0, 0);
+ mri_pending_align = 0;
+
+ if (line_label != NULL)
+ {
+ symbol_set_frag (line_label, frag_now);
+ S_SET_VALUE (line_label, frag_now_fix ());
+ }
+ }
+
+ /* Print the error msg now, while we still can. */
if (pop == NULL)
{
- as_bad ("Unknown pseudo-op: `%s'", s);
+ as_bad (_("unknown pseudo-op: `%s'"), s);
*input_line_pointer = c;
s_ignore (0);
- break;
+ continue;
}
- /* Put it back for error messages etc. */
+ /* Put it back for error messages etc. */
*input_line_pointer = c;
/* The following skip of whitespace is compulsory.
A well shaped space is sometimes all that separates
- keyword from operands. */
+ keyword from operands. */
if (c == ' ' || c == '\t')
- {
- input_line_pointer++;
- } /* Skip seperator after keyword. */
- /*
- * Input_line is restored.
- * Input_line_pointer->1st non-blank char
- * after pseudo-operation.
- */
- if (!pop)
- {
- ignore_rest_of_line ();
- break;
- }
- else
- {
- (*pop->poc_handler) (pop->poc_val);
- } /* if we have one */
+ input_line_pointer++;
+
+ /* Input_line is restored.
+ Input_line_pointer->1st non-blank char
+ after pseudo-operation. */
+ (*pop->poc_handler) (pop->poc_val);
+
+ /* If that was .end, just get out now. */
+ if (pop->poc_handler == s_end)
+ goto quit;
}
else
+ {
+ int inquote = 0;
+#ifdef QUOTES_IN_INSN
+ int inescape = 0;
#endif
- { /* machine instruction */
- /* WARNING: c has char, which may be end-of-line. */
- /* Also: input_line_pointer->`\0` where c was. */
+
+ /* WARNING: c has char, which may be end-of-line. */
+ /* Also: input_line_pointer->`\0` where c was. */
*input_line_pointer = c;
while (!is_end_of_line[(unsigned char) *input_line_pointer]
+ || inquote
#ifdef TC_EOL_IN_INSN
|| TC_EOL_IN_INSN (input_line_pointer)
#endif
)
{
+ if (flag_m68k_mri && *input_line_pointer == '\'')
+ inquote = !inquote;
+#ifdef QUOTES_IN_INSN
+ if (inescape)
+ inescape = 0;
+ else if (*input_line_pointer == '"')
+ inquote = !inquote;
+ else if (*input_line_pointer == '\\')
+ inescape = 1;
+#endif
input_line_pointer++;
}
c = *input_line_pointer;
*input_line_pointer = '\0';
- md_assemble (s); /* Assemble 1 instruction. */
+ generate_lineno_debug ();
- *input_line_pointer++ = c;
+ if (macro_defined)
+ {
+ sb out;
+ const char *err;
+ macro_entry *macro;
+
+ if (check_macro (s, &out, &err, ¯o))
+ {
+ if (err != NULL)
+ as_bad ("%s", err);
+ *input_line_pointer++ = c;
+ input_scrub_include_sb (&out,
+ input_line_pointer, 1);
+ sb_kill (&out);
+ buffer_limit =
+ input_scrub_next_buffer (&input_line_pointer);
+#ifdef md_macro_info
+ md_macro_info (macro);
+#endif
+ continue;
+ }
+ }
- /* We resume loop AFTER the end-of-line from this instruction */
- } /* if (*s=='.') */
+ if (mri_pending_align)
+ {
+ do_align (1, (char *) NULL, 0, 0);
+ mri_pending_align = 0;
+ if (line_label != NULL)
+ {
+ symbol_set_frag (line_label, frag_now);
+ S_SET_VALUE (line_label, frag_now_fix ());
+ }
+ }
- } /* if c==':' */
- continue;
- } /* if (is_name_beginner(c) */
+ md_assemble (s); /* Assemble 1 instruction. */
+ *input_line_pointer++ = c;
- if (is_end_of_line[(unsigned char) c])
- {
+ /* We resume loop AFTER the end-of-line from
+ this instruction. */
+ }
+ }
continue;
- } /* empty statement */
+ }
+ /* Empty statement? */
+ if (is_end_of_line[(unsigned char) c])
+ continue;
-#if defined(LOCAL_LABELS_DOLLAR) || defined(LOCAL_LABELS_FB)
- if (isdigit (c))
- { /* local label ("4:") */
+ if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB) && ISDIGIT (c))
+ {
+ /* local label ("4:") */
char *backup = input_line_pointer;
HANDLE_CONDITIONAL_ASSEMBLY ();
temp = c - '0';
- while (isdigit (*input_line_pointer))
+ /* Read the whole number. */
+ while (ISDIGIT (*input_line_pointer))
{
temp = (temp * 10) + *input_line_pointer - '0';
++input_line_pointer;
- } /* read the whole number */
+ }
-#ifdef LOCAL_LABELS_DOLLAR
- if (*input_line_pointer == '$'
+ if (LOCAL_LABELS_DOLLAR
+ && *input_line_pointer == '$'
&& *(input_line_pointer + 1) == ':')
{
input_line_pointer += 2;
if (dollar_label_defined (temp))
{
- as_fatal ("label \"%d$\" redefined", temp);
+ as_fatal (_("label \"%d$\" redefined"), temp);
}
define_dollar_label (temp);
colon (dollar_label_name (temp, 0));
continue;
}
-#endif /* LOCAL_LABELS_DOLLAR */
-#ifdef LOCAL_LABELS_FB
- if (*input_line_pointer++ == ':')
+ if (LOCAL_LABELS_FB
+ && *input_line_pointer++ == ':')
{
fb_label_instance_inc (temp);
colon (fb_label_name (temp, 0));
continue;
}
-#endif /* LOCAL_LABELS_FB */
input_line_pointer = backup;
} /* local label ("4:") */
-#endif /* LOCAL_LABELS_DOLLAR or LOCAL_LABELS_FB */
if (c && strchr (line_comment_chars, c))
- { /* Its a comment. Better say APP or NO_APP */
+ { /* Its a comment. Better say APP or NO_APP. */
+ sb sbuf;
char *ends;
char *new_buf;
char *new_tmp;
unsigned int new_length;
char *tmp_buf = 0;
- extern char *scrub_string, *scrub_last_string;
bump_line_counters ();
s = input_line_pointer;
continue; /* We ignore it */
s += 4;
+ sb_new (&sbuf);
ends = strstr (s, "#NO_APP\n");
if (!ends)
/* The end of the #APP wasn't in this buffer. We
keep reading in buffers until we find the #NO_APP
that goes with this #APP There is one. The specs
- guarentee it. . . */
+ guarentee it... */
tmp_len = buffer_limit - s;
tmp_buf = xmalloc (tmp_len + 1);
memcpy (tmp_buf, s, tmp_len);
num = buffer_limit - buffer;
tmp_buf = xrealloc (tmp_buf, tmp_len + num);
- memcpy (tmp_buf, buffer + tmp_len, num);
+ memcpy (tmp_buf + tmp_len, buffer, num);
tmp_len += num;
}
while (!ends);
{
input_line_pointer = ends + 8;
}
- new_buf = xmalloc (100);
- new_length = 100;
- new_tmp = new_buf;
scrub_string = s;
- scrub_last_string = ends;
+ scrub_string_end = ends;
+
+ new_length = ends - s;
+ new_buf = (char *) xmalloc (new_length);
+ new_tmp = new_buf;
for (;;)
{
- int ch;
+ int space;
+ int size;
+
+ space = (new_buf + new_length) - new_tmp;
+ size = do_scrub_chars (scrub_from_string, new_tmp, space);
- ch = do_scrub_next_char (scrub_from_string, scrub_to_string);
- if (ch == EOF)
- break;
- *new_tmp++ = ch;
- if (new_tmp == new_buf + new_length)
+ if (size < space)
{
- new_buf = xrealloc (new_buf, new_length + 100);
- new_tmp = new_buf + new_length;
- new_length += 100;
+ new_tmp[size] = 0;
+ break;
}
+
+ new_buf = xrealloc (new_buf, new_length + 100);
+ new_tmp = new_buf + new_length;
+ new_length += 100;
}
if (tmp_buf)
free (tmp_buf);
- old_buffer = buffer;
- old_input = input_line_pointer;
- old_limit = buffer_limit;
- buffer = new_buf;
- input_line_pointer = new_buf;
- buffer_limit = new_tmp;
+
+ /* We've "scrubbed" input to the preferred format. In the
+ process we may have consumed the whole of the remaining
+ file (and included files). We handle this formatted
+ input similar to that of macro expansion, letting
+ actual macro expansion (possibly nested) and other
+ input expansion work. Beware that in messages, line
+ numbers and possibly file names will be incorrect. */
+ sb_add_string (&sbuf, new_buf);
+ input_scrub_include_sb (&sbuf, input_line_pointer, 0);
+ sb_kill (&sbuf);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+ free (new_buf);
continue;
}
HANDLE_CONDITIONAL_ASSEMBLY ();
- /* as_warn("Junk character %d.",c); Now done by ignore_rest */
- input_line_pointer--; /* Report unknown char as ignored. */
+#ifdef tc_unrecognized_line
+ if (tc_unrecognized_line (c))
+ continue;
+#endif
+ input_line_pointer--;
+ /* Report unknown char as ignored. */
ignore_rest_of_line ();
- } /* while (input_line_pointer<buffer_limit) */
- if (old_buffer)
- {
- bump_line_counters ();
- if (old_input != 0)
- {
- buffer = old_buffer;
- input_line_pointer = old_input;
- buffer_limit = old_limit;
- old_buffer = 0;
- goto contin;
- }
}
- } /* while (more buffers to scan) */
- input_scrub_close (); /* Close the input file */
-} /* read_a_source_file() */
+#ifdef md_after_pass_hook
+ md_after_pass_hook ();
+#endif
+ }
-void
-s_abort (ignore)
- int ignore;
-{
- as_fatal (".abort detected. Abandoning ship.");
-} /* s_abort() */
+ quit:
-/* For machines where ".align 4" means align to a 4 byte boundary. */
-void
-s_align_bytes (arg)
- int arg;
+#ifdef md_cleanup
+ md_cleanup ();
+#endif
+ /* Close the input file. */
+ input_scrub_close ();
+#ifdef WARN_COMMENTS
+ {
+ if (warn_comment && found_comment)
+ as_warn_where (found_comment_file, found_comment,
+ "first comment found here");
+ }
+#endif
+}
+
+/* For most MRI pseudo-ops, the line actually ends at the first
+ nonquoted space. This function looks for that point, stuffs a null
+ in, and sets *STOPCP to the character that used to be there, and
+ returns the location.
+
+ Until I hear otherwise, I am going to assume that this is only true
+ for the m68k MRI assembler. */
+
+char *
+mri_comment_field (stopcp)
+ char *stopcp;
{
- register unsigned int temp;
- register long temp_fill;
- unsigned int i = 0;
- unsigned long max_alignment = 1 << 15;
+ char *s;
+#ifdef TC_M68K
+ int inquote = 0;
- if (is_end_of_line[(unsigned char) *input_line_pointer])
- temp = arg; /* Default value from pseudo-op table */
- else
- temp = get_absolute_expression ();
+ know (flag_m68k_mri);
- if (temp > max_alignment)
+ for (s = input_line_pointer;
+ ((!is_end_of_line[(unsigned char) *s] && *s != ' ' && *s != '\t')
+ || inquote);
+ s++)
{
- as_bad ("Alignment too large: %d. assumed.", temp = max_alignment);
+ if (*s == '\'')
+ inquote = !inquote;
}
+#else
+ for (s = input_line_pointer;
+ !is_end_of_line[(unsigned char) *s];
+ s++)
+ ;
+#endif
+ *stopcp = *s;
+ *s = '\0';
+
+ return s;
+}
+
+/* Skip to the end of an MRI comment field. */
+
+void
+mri_comment_end (stop, stopc)
+ char *stop;
+ int stopc;
+{
+ know (flag_mri);
+
+ input_line_pointer = stop;
+ *stop = stopc;
+ while (!is_end_of_line[(unsigned char) *input_line_pointer])
+ ++input_line_pointer;
+}
- /*
- * For the sparc, `.align (1<<n)' actually means `.align n'
- * so we have to convert it.
- */
- if (temp != 0)
+void
+s_abort (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ as_fatal (_(".abort detected. Abandoning ship."));
+}
+
+/* Guts of .align directive. N is the power of two to which to align.
+ FILL may be NULL, or it may point to the bytes of the fill pattern.
+ LEN is the length of whatever FILL points to, if anything. MAX is
+ the maximum number of characters to skip when doing the alignment,
+ or 0 if there is no maximum. */
+
+static void
+do_align (n, fill, len, max)
+ int n;
+ char *fill;
+ int len;
+ int max;
+{
+ if (now_seg == absolute_section)
{
- for (i = 0; (temp & 1) == 0; temp >>= 1, ++i)
- ;
+ if (fill != NULL)
+ while (len-- > 0)
+ if (*fill++ != '\0')
+ {
+ as_warn (_("ignoring fill value in absolute section"));
+ break;
+ }
+ fill = NULL;
+ len = 0;
}
- if (temp != 1)
- as_bad ("Alignment not a power of 2");
- temp = i;
- if (*input_line_pointer == ',')
+#ifdef md_do_align
+ md_do_align (n, fill, len, max, just_record_alignment);
+#endif
+
+ /* Only make a frag if we HAVE to... */
+ if (n != 0 && !need_pass_2)
{
- input_line_pointer++;
- temp_fill = get_absolute_expression ();
+ if (fill == NULL)
+ {
+ if (subseg_text_p (now_seg))
+ frag_align_code (n, max);
+ else
+ frag_align (n, 0, max);
+ }
+ else if (len <= 1)
+ frag_align (n, *fill, max);
+ else
+ frag_align_pattern (n, fill, len, max);
}
- else if (now_seg != data_section && now_seg != bss_section)
- temp_fill = NOP_OPCODE;
- else
- temp_fill = 0;
- /* Only make a frag if we HAVE to. . . */
- if (temp && !need_pass_2)
- frag_align ((int) temp, (int) temp_fill);
- record_alignment (now_seg, (int) temp);
+#ifdef md_do_align
+ just_record_alignment: ATTRIBUTE_UNUSED_LABEL
+#endif
- demand_empty_rest_of_line ();
-} /* s_align_bytes() */
+ record_alignment (now_seg, n - OCTETS_PER_BYTE_POWER);
+}
+
+/* Handle the .align pseudo-op. A positive ARG is a default alignment
+ (in bytes). A negative ARG is the negative of the length of the
+ fill pattern. BYTES_P is non-zero if the alignment value should be
+ interpreted as the byte boundary, rather than the power of 2. */
-/* For machines where ".align 4" means align to 2**4 boundary. */
-void
-s_align_ptwo (ignore)
- int ignore;
+static void
+s_align (arg, bytes_p)
+ int arg;
+ int bytes_p;
{
- register int temp;
- register long temp_fill;
- long max_alignment = 15;
+ register unsigned int align;
+ char *stop = NULL;
+ char stopc;
+ offsetT fill = 0;
+ int max;
+ int fill_p;
- temp = get_absolute_expression ();
- if (temp > max_alignment)
- as_bad ("Alignment too large: %d. assumed.", temp = max_alignment);
- else if (temp < 0)
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
{
- as_bad ("Alignment negative. 0 assumed.");
- temp = 0;
+ if (arg < 0)
+ align = 0;
+ else
+ align = arg; /* Default value from pseudo-op table. */
}
- if (*input_line_pointer == ',')
+ else
{
- input_line_pointer++;
- temp_fill = get_absolute_expression ();
+ align = get_absolute_expression ();
+ SKIP_WHITESPACE ();
}
- /* @@ Fix this right for BFD! */
- else if (now_seg != data_section && now_seg != bss_section)
- temp_fill = NOP_OPCODE;
- else
- temp_fill = 0;
- /* Only make a frag if we HAVE to. . . */
- if (temp && !need_pass_2)
- frag_align (temp, (int) temp_fill);
- record_alignment (now_seg, temp);
+ if (bytes_p)
+ {
+ /* Convert to a power of 2. */
+ if (align != 0)
+ {
+ unsigned int i;
- demand_empty_rest_of_line ();
-} /* s_align_ptwo() */
+ for (i = 0; (align & 1) == 0; align >>= 1, ++i)
+ ;
+ if (align != 1)
+ as_bad (_("alignment not a power of 2"));
-void
-s_comm (ignore)
- int ignore;
-{
- register char *name;
- register char c;
- register char *p;
- offsetT temp;
- register symbolS *symbolP;
+ align = i;
+ }
+ }
+
+ if (align > 15)
+ {
+ align = 15;
+ as_warn (_("alignment too large: %u assumed"), align);
+ }
- name = input_line_pointer;
- c = get_symbol_end ();
- /* just after name is now '\0' */
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
if (*input_line_pointer != ',')
{
- as_bad ("Expected comma after symbol-name: rest of line ignored.");
- ignore_rest_of_line ();
- return;
+ fill_p = 0;
+ max = 0;
}
+ else
+ {
+ ++input_line_pointer;
+ if (*input_line_pointer == ',')
+ fill_p = 0;
+ else
+ {
+ fill = get_absolute_expression ();
+ SKIP_WHITESPACE ();
+ fill_p = 1;
+ }
+
+ if (*input_line_pointer != ',')
+ max = 0;
+ else
+ {
+ ++input_line_pointer;
+ max = get_absolute_expression ();
+ }
+ }
+
+ if (!fill_p)
+ {
+ if (arg < 0)
+ as_warn (_("expected fill pattern missing"));
+ do_align (align, (char *) NULL, 0, max);
+ }
+ else
+ {
+ int fill_len;
+
+ if (arg >= 0)
+ fill_len = 1;
+ else
+ fill_len = -arg;
+ if (fill_len <= 1)
+ {
+ char fill_char;
+
+ fill_char = fill;
+ do_align (align, &fill_char, fill_len, max);
+ }
+ else
+ {
+ char ab[16];
+
+ if ((size_t) fill_len > sizeof ab)
+ abort ();
+ md_number_to_chars (ab, fill, fill_len);
+ do_align (align, ab, fill_len, max);
+ }
+ }
+
+ demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+/* Handle the .align pseudo-op on machines where ".align 4" means
+ align to a 4 byte boundary. */
+
+void
+s_align_bytes (arg)
+ int arg;
+{
+ s_align (arg, 1);
+}
+
+/* Handle the .align pseudo-op on machines where ".align 4" means align
+ to a 2**4 boundary. */
+
+void
+s_align_ptwo (arg)
+ int arg;
+{
+ s_align (arg, 0);
+}
+
+void
+s_comm (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ register char *name;
+ register char c;
+ register char *p;
+ offsetT temp;
+ register symbolS *symbolP;
+ char *stop = NULL;
+ char stopc;
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
+ name = input_line_pointer;
+ c = get_symbol_end ();
+ /* Just after name is now '\0'. */
+ p = input_line_pointer;
+ *p = c;
+
+ if (name == p)
+ {
+ as_bad (_("expected symbol name"));
+ discard_rest_of_line ();
+ return;
+ }
+
+ SKIP_WHITESPACE ();
+
+ if (*input_line_pointer != ',')
+ {
+ *p = 0;
+ as_bad (_("expected comma after \"%s\""), name);
+ *p = c;
+ ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+ return;
+ }
+
input_line_pointer++; /* skip ',' */
+
if ((temp = get_absolute_expression ()) < 0)
{
- as_warn (".COMMon length (%ld.) <0! Ignored.", (long) temp);
+ as_warn (_(".COMMon length (%ld) < 0 ignored"), (long) temp);
ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
return;
}
+
*p = 0;
symbolP = symbol_find_or_make (name);
*p = c;
- if (S_IS_DEFINED (symbolP))
+
+ if (S_IS_DEFINED (symbolP) && !S_IS_COMMON (symbolP))
{
- as_bad ("Ignoring attempt to re-define symbol");
+ as_bad (_("symbol `%s' is already defined"),
+ S_GET_NAME (symbolP));
ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
return;
}
+
if (S_GET_VALUE (symbolP))
{
if (S_GET_VALUE (symbolP) != (valueT) temp)
- as_bad ("Length of .comm \"%s\" is already %ld. Not changed to %ld.",
+ as_bad (_("length of .comm \"%s\" is already %ld; not changing to %ld"),
S_GET_NAME (symbolP),
(long) S_GET_VALUE (symbolP),
(long) temp);
S_SET_EXTERNAL (symbolP);
}
#ifdef OBJ_VMS
- if ( (!temp) || !flagseen['1'])
- S_GET_OTHER(symbolP) = const_flag;
+ {
+ extern int flag_one;
+ if (!temp || !flag_one)
+ S_GET_OTHER(symbolP) = const_flag;
+ }
#endif /* not OBJ_VMS */
know (symbolP->sy_frag == &zero_address_frag);
+
demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
} /* s_comm() */
+/* The MRI COMMON pseudo-op. We handle this by creating a common
+ symbol with the appropriate name. We make s_space do the right
+ thing by increasing the size. */
+
+void
+s_mri_common (small)
+ int small ATTRIBUTE_UNUSED;
+{
+ char *name;
+ char c;
+ char *alc = NULL;
+ symbolS *sym;
+ offsetT align;
+ char *stop = NULL;
+ char stopc;
+
+ if (!flag_mri)
+ {
+ s_comm (0);
+ return;
+ }
+
+ stop = mri_comment_field (&stopc);
+
+ SKIP_WHITESPACE ();
+
+ name = input_line_pointer;
+ if (!ISDIGIT (*name))
+ c = get_symbol_end ();
+ else
+ {
+ do
+ {
+ ++input_line_pointer;
+ }
+ while (ISDIGIT (*input_line_pointer));
+
+ c = *input_line_pointer;
+ *input_line_pointer = '\0';
+
+ if (line_label != NULL)
+ {
+ alc = (char *) xmalloc (strlen (S_GET_NAME (line_label))
+ + (input_line_pointer - name)
+ + 1);
+ sprintf (alc, "%s%s", name, S_GET_NAME (line_label));
+ name = alc;
+ }
+ }
+
+ sym = symbol_find_or_make (name);
+ *input_line_pointer = c;
+ if (alc != NULL)
+ free (alc);
+
+ if (*input_line_pointer != ',')
+ align = 0;
+ else
+ {
+ ++input_line_pointer;
+ align = get_absolute_expression ();
+ }
+
+ if (S_IS_DEFINED (sym) && !S_IS_COMMON (sym))
+ {
+ as_bad (_("symbol `%s' is already defined"), S_GET_NAME (sym));
+ ignore_rest_of_line ();
+ mri_comment_end (stop, stopc);
+ return;
+ }
+
+ S_SET_EXTERNAL (sym);
+ mri_common_symbol = sym;
+
+#ifdef S_SET_ALIGN
+ if (align != 0)
+ S_SET_ALIGN (sym, align);
+#endif
+
+ if (line_label != NULL)
+ {
+ expressionS exp;
+ exp.X_op = O_symbol;
+ exp.X_add_symbol = sym;
+ exp.X_add_number = 0;
+ symbol_set_value_expression (line_label, &exp);
+ symbol_set_frag (line_label, &zero_address_frag);
+ S_SET_SEGMENT (line_label, expr_section);
+ }
+
+ /* FIXME: We just ignore the small argument, which distinguishes
+ COMMON and COMMON.S. I don't know what we can do about it. */
+
+ /* Ignore the type and hptype. */
+ if (*input_line_pointer == ',')
+ input_line_pointer += 2;
+ if (*input_line_pointer == ',')
+ input_line_pointer += 2;
+
+ demand_empty_rest_of_line ();
+
+ mri_comment_end (stop, stopc);
+}
+
void
s_data (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
segT section;
register int temp;
temp = get_absolute_expression ();
- if (flagseen['R'])
+ if (flag_readonly_data_in_text)
{
section = text_section;
temp += 1000;
}
/* Handle the .appfile pseudo-op. This is automatically generated by
- do_scrub_next_char when a preprocessor # line comment is seen with
- a file name. This default definition may be overridden by the
- object or CPU specific pseudo-ops. This function is also the
- default definition for .file; the APPFILE argument is 1 for
- .appfile, 0 for .file. */
+ do_scrub_chars when a preprocessor # line comment is seen with a
+ file name. This default definition may be overridden by the object
+ or CPU specific pseudo-ops. This function is also the default
+ definition for .file; the APPFILE argument is 1 for .appfile, 0 for
+ .file. */
+
+void
+s_app_file_string (file)
+ char *file;
+{
+#ifdef LISTING
+ if (listing)
+ listing_source_file (file);
+#endif
+ register_dependency (file);
+#ifdef obj_app_file
+ obj_app_file (file);
+#endif
+}
-void
+void
s_app_file (appfile)
int appfile;
{
register char *s;
int length;
- /* Some assemblers tolerate immediately following '"' */
+ /* Some assemblers tolerate immediately following '"'. */
if ((s = demand_copy_string (&length)) != 0)
{
/* If this is a fake .appfile, a fake newline was inserted into
the buffer. Passing -2 to new_logical_line tells it to
account for it. */
- new_logical_line (s, appfile ? -2 : -1);
+ int may_omit
+ = (!new_logical_line (s, appfile ? -2 : -1) && appfile);
+
+ /* In MRI mode, the preprocessor may have inserted an extraneous
+ backquote. */
+ if (flag_m68k_mri
+ && *input_line_pointer == '\''
+ && is_end_of_line[(unsigned char) input_line_pointer[1]])
+ ++input_line_pointer;
+
demand_empty_rest_of_line ();
-#ifdef LISTING
- if (listing)
- listing_source_file (s);
-#endif
+ if (!may_omit)
+ s_app_file_string (s);
}
-#ifdef OBJ_COFF
- c_dot_file_symbol (s);
-#endif /* OBJ_COFF */
-#ifdef OBJ_ELF
- elf_file_symbol (s);
-#endif
}
/* Handle the .appline pseudo-op. This is automatically generated by
- do_scrub_next_char when a preprocessor # line comment is seen.
- This default definition may be overridden by the object or CPU
- specific pseudo-ops. */
+ do_scrub_chars when a preprocessor # line comment is seen. This
+ default definition may be overridden by the object or CPU specific
+ pseudo-ops. */
void
s_app_line (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
int l;
/* The given number is that of the next line. */
l = get_absolute_expression () - 1;
- new_logical_line ((char *) NULL, l);
+ if (l < 0)
+ /* Some of the back ends can't deal with non-positive line numbers.
+ Besides, it's silly. */
+ as_warn (_("line numbers must be positive; line number %d rejected"),
+ l + 1);
+ else
+ {
+ new_logical_line ((char *) NULL, l);
#ifdef LISTING
- if (listing)
- listing_source_line (l);
+ if (listing)
+ listing_source_line (l);
#endif
+ }
+ demand_empty_rest_of_line ();
+}
+
+/* Handle the .end pseudo-op. Actually, the real work is done in
+ read_a_source_file. */
+
+void
+s_end (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ if (flag_mri)
+ {
+ /* The MRI assembler permits the start symbol to follow .end,
+ but we don't support that. */
+ SKIP_WHITESPACE ();
+ if (!is_end_of_line[(unsigned char) *input_line_pointer]
+ && *input_line_pointer != '*'
+ && *input_line_pointer != '!')
+ as_warn (_("start address not supported"));
+ }
+}
+
+/* Handle the .err pseudo-op. */
+
+void
+s_err (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ as_bad (_(".err encountered"));
demand_empty_rest_of_line ();
}
-void
+/* Handle the MRI fail pseudo-op. */
+
+void
+s_fail (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ offsetT temp;
+ char *stop = NULL;
+ char stopc;
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
+ temp = get_absolute_expression ();
+ if (temp >= 500)
+ as_warn (_(".fail %ld encountered"), (long) temp);
+ else
+ as_bad (_(".fail %ld encountered"), (long) temp);
+
+ demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+void
s_fill (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
- long temp_repeat = 0;
- long temp_size = 1;
- register long temp_fill = 0;
+ expressionS rep_exp;
+ long size = 1;
+ register long fill = 0;
char *p;
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
- temp_repeat = get_absolute_expression ();
+ get_known_segmented_expression (&rep_exp);
if (*input_line_pointer == ',')
{
input_line_pointer++;
- temp_size = get_absolute_expression ();
+ size = get_absolute_expression ();
if (*input_line_pointer == ',')
{
input_line_pointer++;
- temp_fill = get_absolute_expression ();
+ fill = get_absolute_expression ();
}
}
+
/* This is to be compatible with BSD 4.2 AS, not for any rational reason. */
#define BSD_FILL_SIZE_CROCK_8 (8)
- if (temp_size > BSD_FILL_SIZE_CROCK_8)
+ if (size > BSD_FILL_SIZE_CROCK_8)
{
- as_warn (".fill size clamped to %d.", BSD_FILL_SIZE_CROCK_8);
- temp_size = BSD_FILL_SIZE_CROCK_8;
+ as_warn (_(".fill size clamped to %d"), BSD_FILL_SIZE_CROCK_8);
+ size = BSD_FILL_SIZE_CROCK_8;
}
- if (temp_size < 0)
+ if (size < 0)
{
- as_warn ("Size negative: .fill ignored.");
- temp_size = 0;
+ as_warn (_("size negative; .fill ignored"));
+ size = 0;
}
- else if (temp_repeat <= 0)
+ else if (rep_exp.X_op == O_constant && rep_exp.X_add_number <= 0)
{
- as_warn ("Repeat < 0, .fill ignored");
- temp_size = 0;
+ if (rep_exp.X_add_number < 0)
+ as_warn (_("repeat < 0; .fill ignored"));
+ size = 0;
}
- if (temp_size && !need_pass_2)
+ if (size && !need_pass_2)
{
- p = frag_var (rs_fill, (int) temp_size, (int) temp_size, (relax_substateT) 0, (symbolS *) 0, temp_repeat, (char *) 0);
- memset (p, 0, (unsigned int) temp_size);
+ if (rep_exp.X_op == O_constant)
+ {
+ p = frag_var (rs_fill, (int) size, (int) size,
+ (relax_substateT) 0, (symbolS *) 0,
+ (offsetT) rep_exp.X_add_number,
+ (char *) 0);
+ }
+ else
+ {
+ /* We don't have a constant repeat count, so we can't use
+ rs_fill. We can get the same results out of rs_space,
+ but its argument is in bytes, so we must multiply the
+ repeat count by size. */
+
+ symbolS *rep_sym;
+ rep_sym = make_expr_symbol (&rep_exp);
+ if (size != 1)
+ {
+ expressionS size_exp;
+ size_exp.X_op = O_constant;
+ size_exp.X_add_number = size;
+
+ rep_exp.X_op = O_multiply;
+ rep_exp.X_add_symbol = rep_sym;
+ rep_exp.X_op_symbol = make_expr_symbol (&size_exp);
+ rep_exp.X_add_number = 0;
+ rep_sym = make_expr_symbol (&rep_exp);
+ }
+
+ p = frag_var (rs_space, (int) size, (int) size,
+ (relax_substateT) 0, rep_sym, (offsetT) 0, (char *) 0);
+ }
+
+ memset (p, 0, (unsigned int) size);
+
/* The magic number BSD_FILL_SIZE_CROCK_4 is from BSD 4.2 VAX
- * flavoured AS. The following bizzare behaviour is to be
- * compatible with above. I guess they tried to take up to 8
- * bytes from a 4-byte expression and they forgot to sign
- * extend. Un*x Sux. */
+ flavoured AS. The following bizarre behaviour is to be
+ compatible with above. I guess they tried to take up to 8
+ bytes from a 4-byte expression and they forgot to sign
+ extend. */
#define BSD_FILL_SIZE_CROCK_4 (4)
- md_number_to_chars (p, (valueT) temp_fill,
- (temp_size > BSD_FILL_SIZE_CROCK_4
+ md_number_to_chars (p, (valueT) fill,
+ (size > BSD_FILL_SIZE_CROCK_4
? BSD_FILL_SIZE_CROCK_4
- : (int) temp_size));
+ : (int) size));
/* Note: .fill (),0 emits no frag (since we are asked to .fill 0 bytes)
- * but emits no error message because it seems a legal thing to do.
- * It is a degenerate case of .fill but could be emitted by a compiler.
- */
+ but emits no error message because it seems a legal thing to do.
+ It is a degenerate case of .fill but could be emitted by a
+ compiler. */
}
demand_empty_rest_of_line ();
}
-void
+void
s_globl (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
char *name;
int c;
symbolS *symbolP;
+ char *stop = NULL;
+ char stopc;
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
do
{
name = input_line_pointer;
c = get_symbol_end ();
symbolP = symbol_find_or_make (name);
+ S_SET_EXTERNAL (symbolP);
+
*input_line_pointer = c;
SKIP_WHITESPACE ();
- S_SET_EXTERNAL (symbolP);
+ c = *input_line_pointer;
if (c == ',')
{
input_line_pointer++;
SKIP_WHITESPACE ();
- if (*input_line_pointer == '\n')
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
c = '\n';
}
}
while (c == ',');
+
demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
}
-void
-s_lcomm (needs_align)
+/* Handle the MRI IRP and IRPC pseudo-ops. */
+
+void
+s_irp (irpc)
+ int irpc;
+{
+ char *file;
+ unsigned int line;
+ sb s;
+ const char *err;
+ sb out;
+
+ as_where (&file, &line);
+
+ sb_new (&s);
+ while (!is_end_of_line[(unsigned char) *input_line_pointer])
+ sb_add_char (&s, *input_line_pointer++);
+
+ sb_new (&out);
+
+ err = expand_irp (irpc, 0, &s, &out, get_line_sb);
+ if (err != NULL)
+ as_bad_where (file, line, "%s", err);
+
+ sb_kill (&s);
+
+ input_scrub_include_sb (&out, input_line_pointer, 1);
+ sb_kill (&out);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
+
+/* Handle the .linkonce pseudo-op. This tells the assembler to mark
+ the section to only be linked once. However, this is not supported
+ by most object file formats. This takes an optional argument,
+ which is what to do about duplicates. */
+
+void
+s_linkonce (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ enum linkonce_type type;
+
+ SKIP_WHITESPACE ();
+
+ type = LINKONCE_DISCARD;
+
+ if (!is_end_of_line[(unsigned char) *input_line_pointer])
+ {
+ char *s;
+ char c;
+
+ s = input_line_pointer;
+ c = get_symbol_end ();
+ if (strcasecmp (s, "discard") == 0)
+ type = LINKONCE_DISCARD;
+ else if (strcasecmp (s, "one_only") == 0)
+ type = LINKONCE_ONE_ONLY;
+ else if (strcasecmp (s, "same_size") == 0)
+ type = LINKONCE_SAME_SIZE;
+ else if (strcasecmp (s, "same_contents") == 0)
+ type = LINKONCE_SAME_CONTENTS;
+ else
+ as_warn (_("unrecognized .linkonce type `%s'"), s);
+
+ *input_line_pointer = c;
+ }
+
+#ifdef obj_handle_link_once
+ obj_handle_link_once (type);
+#else /* ! defined (obj_handle_link_once) */
+#ifdef BFD_ASSEMBLER
+ {
+ flagword flags;
+
+ if ((bfd_applicable_section_flags (stdoutput) & SEC_LINK_ONCE) == 0)
+ as_warn (_(".linkonce is not supported for this object file format"));
+
+ flags = bfd_get_section_flags (stdoutput, now_seg);
+ flags |= SEC_LINK_ONCE;
+ switch (type)
+ {
+ default:
+ abort ();
+ case LINKONCE_DISCARD:
+ flags |= SEC_LINK_DUPLICATES_DISCARD;
+ break;
+ case LINKONCE_ONE_ONLY:
+ flags |= SEC_LINK_DUPLICATES_ONE_ONLY;
+ break;
+ case LINKONCE_SAME_SIZE:
+ flags |= SEC_LINK_DUPLICATES_SAME_SIZE;
+ break;
+ case LINKONCE_SAME_CONTENTS:
+ flags |= SEC_LINK_DUPLICATES_SAME_CONTENTS;
+ break;
+ }
+ if (!bfd_set_section_flags (stdoutput, now_seg, flags))
+ as_bad (_("bfd_set_section_flags: %s"),
+ bfd_errmsg (bfd_get_error ()));
+ }
+#else /* ! defined (BFD_ASSEMBLER) */
+ as_warn (_(".linkonce is not supported for this object file format"));
+#endif /* ! defined (BFD_ASSEMBLER) */
+#endif /* ! defined (obj_handle_link_once) */
+
+ demand_empty_rest_of_line ();
+}
+
+static void
+s_lcomm_internal (needs_align, bytes_p)
/* 1 if this was a ".bss" directive, which may require a 3rd argument
- (alignment); 0 if it was an ".lcomm" (2 args only) */
+ (alignment); 0 if it was an ".lcomm" (2 args only). */
int needs_align;
+ /* 1 if the alignment value should be interpreted as the byte boundary,
+ rather than the power of 2. */
+ int bytes_p;
{
register char *name;
register char c;
c = get_symbol_end ();
p = input_line_pointer;
*p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
+
+ if (name == p)
{
- as_bad ("Expected comma after name");
- ignore_rest_of_line ();
+ as_bad (_("expected symbol name"));
+ discard_rest_of_line ();
return;
}
- ++input_line_pointer;
+ SKIP_WHITESPACE ();
+
+ /* Accept an optional comma after the name. The comma used to be
+ required, but Irix 5 cc does not generate it. */
+ if (*input_line_pointer == ',')
+ {
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ }
- if (*input_line_pointer == '\n')
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
{
- as_bad ("Missing size expression");
+ as_bad (_("missing size expression"));
return;
}
if ((temp = get_absolute_expression ()) < 0)
{
- as_warn ("BSS length (%d.) <0! Ignored.", temp);
+ as_warn (_("BSS length (%d) < 0 ignored"), temp);
ignore_rest_of_line ();
return;
}
-#ifdef TC_MIPS
-#ifdef OBJ_ECOFF
- /* For MIPS ECOFF, small objects are put in .sbss. */
- if (temp <= bfd_get_gp_size (stdoutput))
- bss_seg = subseg_new (".sbss", 1);
+#if defined (TC_MIPS) || defined (TC_ALPHA)
+ if (OUTPUT_FLAVOR == bfd_target_ecoff_flavour
+ || OUTPUT_FLAVOR == bfd_target_elf_flavour)
+ {
+ /* For MIPS and Alpha ECOFF or ELF, small objects are put in .sbss. */
+ if ((unsigned) temp <= bfd_get_gp_size (stdoutput))
+ {
+ bss_seg = subseg_new (".sbss", 1);
+ seg_info (bss_seg)->bss = 1;
+#ifdef BFD_ASSEMBLER
+ if (!bfd_set_section_flags (stdoutput, bss_seg, SEC_ALLOC))
+ as_warn (_("error setting flags for \".sbss\": %s"),
+ bfd_errmsg (bfd_get_error ()));
#endif
+ }
+ }
#endif
+ if (!needs_align)
+ {
+ TC_IMPLICIT_LCOMM_ALIGNMENT (temp, align);
+
+ /* Still zero unless TC_IMPLICIT_LCOMM_ALIGNMENT set it. */
+ if (align)
+ record_alignment (bss_seg, align);
+ }
+
if (needs_align)
{
align = 0;
SKIP_WHITESPACE ();
+
if (*input_line_pointer != ',')
{
- as_bad ("Expected comma after size");
+ as_bad (_("expected comma after size"));
ignore_rest_of_line ();
return;
}
+
input_line_pointer++;
SKIP_WHITESPACE ();
- if (*input_line_pointer == '\n')
+
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
{
- as_bad ("Missing alignment");
+ as_bad (_("missing alignment"));
return;
}
+
align = get_absolute_expression ();
+
+ if (bytes_p)
+ {
+ /* Convert to a power of 2. */
+ if (align != 0)
+ {
+ unsigned int i;
+
+ for (i = 0; (align & 1) == 0; align >>= 1, ++i)
+ ;
+ if (align != 1)
+ as_bad (_("alignment not a power of 2"));
+ align = i;
+ }
+ }
+
if (align > max_alignment)
{
align = max_alignment;
- as_warn ("Alignment too large: %d. assumed.", align);
+ as_warn (_("alignment too large; %d assumed"), align);
}
else if (align < 0)
{
align = 0;
- as_warn ("Alignment negative. 0 assumed.");
+ as_warn (_("alignment negative; 0 assumed"));
}
+
record_alignment (bss_seg, align);
- } /* if needs align */
+ }
+ else
+ {
+ /* Assume some objects may require alignment on some systems. */
+#if defined (TC_ALPHA) && ! defined (VMS)
+ if (temp > 1)
+ {
+ align = ffs (temp) - 1;
+ if (temp % (1 << align))
+ abort ();
+ }
+#endif
+ }
*p = 0;
symbolP = symbol_find_or_make (name);
*p = c;
if (
-#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- S_GET_OTHER (symbolP) == 0 &&
- S_GET_DESC (symbolP) == 0 &&
-#endif /* OBJ_AOUT or OBJ_BOUT */
- (S_GET_SEGMENT (symbolP) == bss_seg
- || (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0)))
+#if (defined (OBJ_AOUT) || defined (OBJ_MAYBE_AOUT) \
+ || defined (OBJ_BOUT) || defined (OBJ_MAYBE_BOUT))
+#ifdef BFD_ASSEMBLER
+ (OUTPUT_FLAVOR != bfd_target_aout_flavour
+ || (S_GET_OTHER (symbolP) == 0 && S_GET_DESC (symbolP) == 0)) &&
+#else
+ (S_GET_OTHER (symbolP) == 0 && S_GET_DESC (symbolP) == 0) &&
+#endif
+#endif
+ (S_GET_SEGMENT (symbolP) == bss_seg
+ || (!S_IS_DEFINED (symbolP) && S_GET_VALUE (symbolP) == 0)))
{
char *pfrag;
subseg_set (bss_seg, 1);
if (align)
- frag_align (align, 0);
- /* detach from old frag */
+ frag_align (align, 0, 0);
+
+ /* Detach from old frag. */
if (S_GET_SEGMENT (symbolP) == bss_seg)
- symbolP->sy_frag->fr_symbol = NULL;
+ symbol_get_frag (symbolP)->fr_symbol = NULL;
- symbolP->sy_frag = frag_now;
- pfrag = frag_var (rs_org, 1, 1, (relax_substateT)0, symbolP,
- temp, (char *)0);
+ symbol_set_frag (symbolP, frag_now);
+ pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
+ (offsetT) temp, (char *) 0);
*pfrag = 0;
S_SET_SEGMENT (symbolP, bss_seg);
#ifdef OBJ_COFF
/* The symbol may already have been created with a preceding
".globl" directive -- be careful not to step on storage class
- in that case. Otherwise, set it to static. */
+ in that case. Otherwise, set it to static. */
if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
{
S_SET_STORAGE_CLASS (symbolP, C_STAT);
}
#endif /* OBJ_COFF */
+
+#ifdef S_SET_SIZE
+ S_SET_SIZE (symbolP, temp);
+#endif
}
else
- {
- as_bad ("Ignoring attempt to re-define symbol %s.", name);
- }
+ as_bad (_("symbol `%s' is already defined"), S_GET_NAME (symbolP));
subseg_set (current_seg, current_subseg);
demand_empty_rest_of_line ();
-} /* s_lcomm() */
+}
+
+void
+s_lcomm (needs_align)
+ int needs_align;
+{
+ s_lcomm_internal (needs_align, 0);
+}
+
+void
+s_lcomm_bytes (needs_align)
+ int needs_align;
+{
+ s_lcomm_internal (needs_align, 1);
+}
-void
+void
s_lsym (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
register char *name;
register char c;
expressionS exp;
register symbolS *symbolP;
- /* we permit ANY defined expression: BSD4.2 demands constants */
+ /* We permit ANY defined expression: BSD4.2 demands constants. */
name = input_line_pointer;
c = get_symbol_end ();
p = input_line_pointer;
*p = c;
+
+ if (name == p)
+ {
+ as_bad (_("expected symbol name"));
+ discard_rest_of_line ();
+ return;
+ }
+
SKIP_WHITESPACE ();
+
if (*input_line_pointer != ',')
{
*p = 0;
- as_bad ("Expected comma after name \"%s\"", name);
+ as_bad (_("expected comma after \"%s\""), name);
*p = c;
ignore_rest_of_line ();
return;
}
+
input_line_pointer++;
expression (&exp);
+
if (exp.X_op != O_constant
&& exp.X_op != O_register)
{
- as_bad ("bad expression");
+ as_bad (_("bad expression"));
ignore_rest_of_line ();
return;
}
+
*p = 0;
symbolP = symbol_find_or_make (name);
those fields, and I can't see when they'd ever be tripped. I
don't think I understand why they were here so I may have
introduced a bug. As recently as 1.37 didn't have this test
- anyway. xoxorich. */
+ anyway. xoxorich. */
if (S_GET_SEGMENT (symbolP) == undefined_section
&& S_GET_VALUE (symbolP) == 0)
{
/* The name might be an undefined .global symbol; be sure to
- keep the "external" bit. */
+ keep the "external" bit. */
S_SET_SEGMENT (symbolP,
(exp.X_op == O_constant
? absolute_section
}
else
{
- as_bad ("Symbol %s already defined", name);
+ as_bad (_("symbol `%s' is already defined"), name);
}
+
*p = c;
demand_empty_rest_of_line ();
-} /* s_lsym() */
+}
-void
-s_org (ignore)
- int ignore;
+/* Read a line into an sb. Returns the character that ended the line
+ or zero if there are no more lines. */
+
+static int
+get_line_sb (line)
+ sb *line;
{
- register segT segment;
- expressionS exp;
- register long temp_fill;
- register char *p;
- /* Don't believe the documentation of BSD 4.2 AS. There is no such
- thing as a sub-segment-relative origin. Any absolute origin is
- given a warning, then assumed to be segment-relative. Any
- segmented origin expression ("foo+42") had better be in the right
- segment or the .org is ignored.
+ char quote1, quote2, inquote;
+ unsigned char c;
- BSD 4.2 AS warns if you try to .org backwards. We cannot because
- we never know sub-segment sizes when we are reading code. BSD
- will crash trying to emit negative numbers of filler bytes in
- certain .orgs. We don't crash, but see as-write for that code.
+ if (input_line_pointer[-1] == '\n')
+ bump_line_counters ();
- Don't make frag if need_pass_2==1. */
- segment = get_known_segmented_expression (&exp);
- if (*input_line_pointer == ',')
+ if (input_line_pointer >= buffer_limit)
{
- input_line_pointer++;
- temp_fill = get_absolute_expression ();
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+ if (buffer_limit == 0)
+ return 0;
}
+
+ /* If app.c sets any other characters to LEX_IS_STRINGQUOTE, this
+ code needs to be changed. */
+ if (!flag_m68k_mri)
+ quote1 = '"';
else
- temp_fill = 0;
- if (!need_pass_2)
- {
- if (segment != now_seg && segment != absolute_section)
- as_bad ("Invalid segment \"%s\". Segment \"%s\" assumed.",
- segment_name (segment), segment_name (now_seg));
- p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol,
- exp.X_add_number, (char *) 0);
- *p = temp_fill;
- } /* if (ok to make frag) */
- demand_empty_rest_of_line ();
-} /* s_org() */
+ quote1 = '\0';
-void
-s_set (ignore)
- int ignore;
-{
- register char *name;
- register char delim;
- register char *end_name;
- register symbolS *symbolP;
+ quote2 = '\0';
+ if (flag_m68k_mri)
+ quote2 = '\'';
+#ifdef LEX_IS_STRINGQUOTE
+ quote2 = '\'';
+#endif
- /*
- * Especial apologies for the random logic:
- * this just grew, and could be parsed much more simply!
- * Dean in haste.
- */
- name = input_line_pointer;
- delim = get_symbol_end ();
- end_name = input_line_pointer;
- *end_name = delim;
- SKIP_WHITESPACE ();
+ inquote = '\0';
- if (*input_line_pointer != ',')
+ while ((c = * input_line_pointer ++) != 0
+ && (!is_end_of_line[c]
+ || (inquote != '\0' && c != '\n')))
{
- *end_name = 0;
- as_bad ("Expected comma after name \"%s\"", name);
- *end_name = delim;
- ignore_rest_of_line ();
- return;
+ if (inquote == c)
+ inquote = '\0';
+ else if (inquote == '\0')
+ {
+ if (c == quote1)
+ inquote = quote1;
+ else if (c == quote2)
+ inquote = quote2;
+ }
+
+ sb_add_char (line, c);
}
- input_line_pointer++;
- *end_name = 0;
+ /* Don't skip multiple end-of-line characters, because that breaks support
+ for the IA-64 stop bit (;;) which looks like two consecutive end-of-line
+ characters but isn't. Instead just skip one end of line character and
+ return the character skipped so that the caller can re-insert it if
+ necessary. */
+ return c;
+}
- if (name[0] == '.' && name[1] == '\0')
- {
- /* Turn '. = mumble' into a .org mumble */
- register segT segment;
- expressionS exp;
- register char *ptr;
+/* Define a macro. This is an interface to macro.c. */
- segment = get_known_segmented_expression (&exp);
+void
+s_macro (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ char *file;
+ unsigned int line;
+ sb s;
+ sb label;
+ const char *err;
+ const char *name;
- if (!need_pass_2)
+ as_where (&file, &line);
+
+ sb_new (&s);
+ while (!is_end_of_line[(unsigned char) *input_line_pointer])
+ sb_add_char (&s, *input_line_pointer++);
+
+ sb_new (&label);
+ if (line_label != NULL)
+ sb_add_string (&label, S_GET_NAME (line_label));
+
+ err = define_macro (0, &s, &label, get_line_sb, &name);
+ if (err != NULL)
+ as_bad_where (file, line, "%s", err);
+ else
+ {
+ if (line_label != NULL)
{
- if (segment != now_seg && segment != absolute_section)
- as_bad ("Invalid segment \"%s\". Segment \"%s\" assumed.",
- segment_name (segment),
- segment_name (now_seg));
- ptr = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol,
- exp.X_add_number, (char *) 0);
- *ptr = 0;
- } /* if (ok to make frag) */
+ S_SET_SEGMENT (line_label, undefined_section);
+ S_SET_VALUE (line_label, 0);
+ symbol_set_frag (line_label, &zero_address_frag);
+ }
- *end_name = delim;
- return;
+ if (((NO_PSEUDO_DOT || flag_m68k_mri)
+ && hash_find (po_hash, name) != NULL)
+ || (!flag_m68k_mri
+ && *name == '.'
+ && hash_find (po_hash, name + 1) != NULL))
+ as_warn (_("attempt to redefine pseudo-op `%s' ignored"),
+ name);
}
- if ((symbolP = symbol_find (name)) == NULL
- && (symbolP = md_undefined_symbol (name)) == NULL)
- {
- symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
-#ifdef OBJ_COFF
- /* "set" symbols are local unless otherwise specified. */
- SF_SET_LOCAL (symbolP);
-#endif /* OBJ_COFF */
+ sb_kill (&s);
+}
- } /* make a new symbol */
+/* Handle the .mexit pseudo-op, which immediately exits a macro
+ expansion. */
- symbol_table_insert (symbolP);
+void
+s_mexit (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ cond_exit_macro (macro_nest);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
- *end_name = delim;
- pseudo_set (symbolP);
- demand_empty_rest_of_line ();
-} /* s_set() */
+/* Switch in and out of MRI mode. */
-void
-s_space (mult)
- int mult;
+void
+s_mri (ignore)
+ int ignore ATTRIBUTE_UNUSED;
{
- long temp_repeat;
- register long temp_fill;
- register char *p;
+ int on, old_flag;
- /* Just like .fill, but temp_size = 1 */
- if (get_absolute_expression_and_terminator (&temp_repeat) == ',')
+ on = get_absolute_expression ();
+ old_flag = flag_mri;
+ if (on != 0)
{
- temp_fill = get_absolute_expression ();
+ flag_mri = 1;
+#ifdef TC_M68K
+ flag_m68k_mri = 1;
+#endif
+ macro_mri_mode (1);
}
else
{
- input_line_pointer--; /* Backup over what was not a ','. */
- temp_fill = 0;
- }
- if (mult)
- {
- temp_repeat *= mult;
- }
- if (temp_repeat <= 0)
- {
- as_warn ("Repeat < 0, .space ignored");
- ignore_rest_of_line ();
- return;
- }
- if (!need_pass_2)
- {
- p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0,
- temp_repeat, (char *) 0);
- *p = temp_fill;
+ flag_mri = 0;
+#ifdef TC_M68K
+ flag_m68k_mri = 0;
+#endif
+ macro_mri_mode (0);
}
- demand_empty_rest_of_line ();
-} /* s_space() */
-void
-s_text (ignore)
- int ignore;
-{
- register int temp;
+ /* Operator precedence changes in m68k MRI mode, so we need to
+ update the operator rankings. */
+ expr_set_precedence ();
+
+#ifdef MRI_MODE_CHANGE
+ if (on != old_flag)
+ MRI_MODE_CHANGE (on);
+#endif
- temp = get_absolute_expression ();
- subseg_set (text_section, (subsegT) temp);
demand_empty_rest_of_line ();
-} /* s_text() */
-\f
+}
-void
-demand_empty_rest_of_line ()
+/* Handle changing the location counter. */
+
+static void
+do_org (segment, exp, fill)
+ segT segment;
+ expressionS *exp;
+ int fill;
{
- SKIP_WHITESPACE ();
- if (is_end_of_line[(unsigned char) *input_line_pointer])
+ if (segment != now_seg && segment != absolute_section)
+ as_bad (_("invalid segment \"%s\""), segment_name (segment));
+
+ if (now_seg == absolute_section)
{
- input_line_pointer++;
+ if (fill != 0)
+ as_warn (_("ignoring fill value in absolute section"));
+ if (exp->X_op != O_constant)
+ {
+ as_bad (_("only constant offsets supported in absolute section"));
+ exp->X_add_number = 0;
+ }
+ abs_section_offset = exp->X_add_number;
}
else
{
- ignore_rest_of_line ();
- }
- /* Return having already swallowed end-of-line. */
-} /* Return pointing just after end-of-line. */
+ char *p;
+ symbolS *sym = exp->X_add_symbol;
+ offsetT off = exp->X_add_number * OCTETS_PER_BYTE;
-void
-ignore_rest_of_line () /* For suspect lines: gives warning. */
-{
- if (!is_end_of_line[(unsigned char) *input_line_pointer])
- {
- if (isprint (*input_line_pointer))
- as_bad ("Rest of line ignored. First ignored character is `%c'.",
- *input_line_pointer);
- else
- as_bad ("Rest of line ignored. First ignored character valued 0x%x.",
- *input_line_pointer);
- while (input_line_pointer < buffer_limit
- && !is_end_of_line[(unsigned char) *input_line_pointer])
+ if (exp->X_op != O_constant && exp->X_op != O_symbol)
{
- input_line_pointer++;
+ /* Handle complex expressions. */
+ sym = make_expr_symbol (exp);
+ off = 0;
}
+
+ p = frag_var (rs_org, 1, 1, (relax_substateT) 0, sym, off, (char *) 0);
+ *p = fill;
}
- input_line_pointer++; /* Return pointing just after end-of-line. */
- know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
}
-/*
- * pseudo_set()
- *
- * In: Pointer to a symbol.
- * Input_line_pointer->expression.
- *
- * Out: Input_line_pointer->just after any whitespace after expression.
- * Tried to set symbol to value of expression.
- * Will change symbols type, value, and frag;
- */
void
-pseudo_set (symbolP)
- symbolS *symbolP;
+s_org (ignore)
+ int ignore ATTRIBUTE_UNUSED;
{
+ register segT segment;
expressionS exp;
-#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- int ext;
-#endif /* OBJ_AOUT or OBJ_BOUT */
-
- know (symbolP); /* NULL pointer is logic error. */
-#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- /* @@ Fix this right for BFD. */
- ext = S_IS_EXTERNAL (symbolP);
-#endif /* OBJ_AOUT or OBJ_BOUT */
+ register long temp_fill;
- (void) expression (&exp);
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
- if (exp.X_op == O_illegal)
- as_bad ("illegal expression; zero assumed");
- else if (exp.X_op == O_absent)
- as_bad ("missing expression; zero assumed");
- else if (exp.X_op == O_big)
- as_bad ("%s number invalid; zero assumed",
- exp.X_add_number > 0 ? "bignum" : "floating point");
- else if (exp.X_op == O_subtract
- && (S_GET_SEGMENT (exp.X_add_symbol)
- == S_GET_SEGMENT (exp.X_op_symbol))
- && SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol))
- && exp.X_add_symbol->sy_frag == exp.X_op_symbol->sy_frag)
+ /* The m68k MRI assembler has a different meaning for .org. It
+ means to create an absolute section at a given address. We can't
+ support that--use a linker script instead. */
+ if (flag_m68k_mri)
{
- exp.X_op = O_constant;
- exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol)
- - S_GET_VALUE (exp.X_op_symbol));
+ as_bad (_("MRI style ORG pseudo-op not supported"));
+ ignore_rest_of_line ();
+ return;
}
- switch (exp.X_op)
- {
- case O_illegal:
- case O_absent:
- case O_big:
- exp.X_add_number = 0;
- /* Fall through. */
- case O_constant:
- S_SET_SEGMENT (symbolP, absolute_section);
-#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- /* @@ Fix this right for BFD. */
- if (ext)
- S_SET_EXTERNAL (symbolP);
- else
- S_CLEAR_EXTERNAL (symbolP);
-#endif /* OBJ_AOUT or OBJ_BOUT */
- S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
- symbolP->sy_frag = &zero_address_frag;
- break;
+ /* Don't believe the documentation of BSD 4.2 AS. There is no such
+ thing as a sub-segment-relative origin. Any absolute origin is
+ given a warning, then assumed to be segment-relative. Any
+ segmented origin expression ("foo+42") had better be in the right
+ segment or the .org is ignored.
- case O_register:
- S_SET_SEGMENT (symbolP, reg_section);
- S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
- symbolP->sy_frag = &zero_address_frag;
- break;
+ BSD 4.2 AS warns if you try to .org backwards. We cannot because
+ we never know sub-segment sizes when we are reading code. BSD
+ will crash trying to emit negative numbers of filler bytes in
+ certain .orgs. We don't crash, but see as-write for that code.
- case O_symbol:
- if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
- symbolP->sy_value = exp;
- else
- {
- S_SET_SEGMENT (symbolP, S_GET_SEGMENT (exp.X_add_symbol));
-#if defined(OBJ_AOUT) | defined(OBJ_BOUT)
- /* @@ Fix this right for BFD! */
+ Don't make frag if need_pass_2==1. */
+ segment = get_known_segmented_expression (&exp);
+ if (*input_line_pointer == ',')
+ {
+ input_line_pointer++;
+ temp_fill = get_absolute_expression ();
+ }
+ else
+ temp_fill = 0;
+
+ if (!need_pass_2)
+ do_org (segment, &exp, temp_fill);
+
+ demand_empty_rest_of_line ();
+}
+
+/* Handle parsing for the MRI SECT/SECTION pseudo-op. This should be
+ called by the obj-format routine which handles section changing
+ when in MRI mode. It will create a new section, and return it. It
+ will set *TYPE to the section type: one of 'C' (code), 'D' (data),
+ 'M' (mixed), or 'R' (romable). If BFD_ASSEMBLER is defined, the
+ flags will be set in the section. */
+
+void
+s_mri_sect (type)
+ char *type ATTRIBUTE_UNUSED;
+{
+#ifdef TC_M68K
+
+ char *name;
+ char c;
+ segT seg;
+
+ SKIP_WHITESPACE ();
+
+ name = input_line_pointer;
+ if (!ISDIGIT (*name))
+ c = get_symbol_end ();
+ else
+ {
+ do
+ {
+ ++input_line_pointer;
+ }
+ while (ISDIGIT (*input_line_pointer));
+
+ c = *input_line_pointer;
+ *input_line_pointer = '\0';
+ }
+
+ name = xstrdup (name);
+
+ *input_line_pointer = c;
+
+ seg = subseg_new (name, 0);
+
+ if (*input_line_pointer == ',')
+ {
+ int align;
+
+ ++input_line_pointer;
+ align = get_absolute_expression ();
+ record_alignment (seg, align);
+ }
+
+ *type = 'C';
+ if (*input_line_pointer == ',')
+ {
+ c = *++input_line_pointer;
+ c = TOUPPER (c);
+ if (c == 'C' || c == 'D' || c == 'M' || c == 'R')
+ *type = c;
+ else
+ as_bad (_("unrecognized section type"));
+ ++input_line_pointer;
+
+#ifdef BFD_ASSEMBLER
+ {
+ flagword flags;
+
+ flags = SEC_NO_FLAGS;
+ if (*type == 'C')
+ flags = SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_CODE;
+ else if (*type == 'D' || *type == 'M')
+ flags = SEC_ALLOC | SEC_LOAD | SEC_DATA;
+ else if (*type == 'R')
+ flags = SEC_ALLOC | SEC_LOAD | SEC_DATA | SEC_READONLY | SEC_ROM;
+ if (flags != SEC_NO_FLAGS)
+ {
+ if (!bfd_set_section_flags (stdoutput, seg, flags))
+ as_warn (_("error setting flags for \"%s\": %s"),
+ bfd_section_name (stdoutput, seg),
+ bfd_errmsg (bfd_get_error ()));
+ }
+ }
+#endif
+ }
+
+ /* Ignore the HP type. */
+ if (*input_line_pointer == ',')
+ input_line_pointer += 2;
+
+ demand_empty_rest_of_line ();
+
+#else /* ! TC_M68K */
+#ifdef TC_I960
+
+ char *name;
+ char c;
+ segT seg;
+
+ SKIP_WHITESPACE ();
+
+ name = input_line_pointer;
+ c = get_symbol_end ();
+
+ name = xstrdup (name);
+
+ *input_line_pointer = c;
+
+ seg = subseg_new (name, 0);
+
+ if (*input_line_pointer != ',')
+ *type = 'C';
+ else
+ {
+ char *sectype;
+
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ sectype = input_line_pointer;
+ c = get_symbol_end ();
+ if (*sectype == '\0')
+ *type = 'C';
+ else if (strcasecmp (sectype, "text") == 0)
+ *type = 'C';
+ else if (strcasecmp (sectype, "data") == 0)
+ *type = 'D';
+ else if (strcasecmp (sectype, "romdata") == 0)
+ *type = 'R';
+ else
+ as_warn (_("unrecognized section type `%s'"), sectype);
+ *input_line_pointer = c;
+ }
+
+ if (*input_line_pointer == ',')
+ {
+ char *seccmd;
+
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ seccmd = input_line_pointer;
+ c = get_symbol_end ();
+ if (strcasecmp (seccmd, "absolute") == 0)
+ {
+ as_bad (_("absolute sections are not supported"));
+ *input_line_pointer = c;
+ ignore_rest_of_line ();
+ return;
+ }
+ else if (strcasecmp (seccmd, "align") == 0)
+ {
+ int align;
+
+ *input_line_pointer = c;
+ align = get_absolute_expression ();
+ record_alignment (seg, align);
+ }
+ else
+ {
+ as_warn (_("unrecognized section command `%s'"), seccmd);
+ *input_line_pointer = c;
+ }
+ }
+
+ demand_empty_rest_of_line ();
+
+#else /* ! TC_I960 */
+ /* The MRI assembler seems to use different forms of .sect for
+ different targets. */
+ as_bad ("MRI mode not supported for this target");
+ ignore_rest_of_line ();
+#endif /* ! TC_I960 */
+#endif /* ! TC_M68K */
+}
+
+/* Handle the .print pseudo-op. */
+
+void
+s_print (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ char *s;
+ int len;
+
+ s = demand_copy_C_string (&len);
+ printf ("%s\n", s);
+ demand_empty_rest_of_line ();
+}
+
+/* Handle the .purgem pseudo-op. */
+
+void
+s_purgem (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ if (is_it_end_of_statement ())
+ {
+ demand_empty_rest_of_line ();
+ return;
+ }
+
+ do
+ {
+ char *name;
+ char c;
+
+ SKIP_WHITESPACE ();
+ name = input_line_pointer;
+ c = get_symbol_end ();
+ delete_macro (name);
+ *input_line_pointer = c;
+ SKIP_WHITESPACE ();
+ }
+ while (*input_line_pointer++ == ',');
+
+ --input_line_pointer;
+ demand_empty_rest_of_line ();
+}
+
+/* Handle the .rept pseudo-op. */
+
+void
+s_bad_endr (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ as_warn (_(".endr encountered without preceeding .rept, .irc, or .irp"));
+ demand_empty_rest_of_line ();
+}
+
+/* Handle the .rept pseudo-op. */
+
+void
+s_rept (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ int count;
+
+ count = get_absolute_expression ();
+
+ do_repeat (count, "REPT", "ENDR");
+}
+
+/* This function provides a generic repeat block implementation. It allows
+ different directives to be used as the start/end keys. */
+
+void
+do_repeat (count, start, end)
+ int count;
+ const char *start;
+ const char *end;
+{
+ sb one;
+ sb many;
+
+ sb_new (&one);
+ if (!buffer_and_nest (start, end, &one, get_line_sb))
+ {
+ as_bad (_("%s without %s"), start, end);
+ return;
+ }
+
+ sb_new (&many);
+ while (count-- > 0)
+ sb_add_sb (&many, &one);
+
+ sb_kill (&one);
+
+ input_scrub_include_sb (&many, input_line_pointer, 1);
+ sb_kill (&many);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
+
+/* Skip to end of current repeat loop; EXTRA indicates how many additional
+ input buffers to skip. Assumes that conditionals preceding the loop end
+ are properly nested.
+
+ This function makes it easier to implement a premature "break" out of the
+ loop. The EXTRA arg accounts for other buffers we might have inserted,
+ such as line substitutions. */
+
+void
+end_repeat (extra)
+ int extra;
+{
+ cond_exit_macro (macro_nest);
+ while (extra-- >= 0)
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
+
+/* Handle the .equ, .equiv and .set directives. If EQUIV is 1, then
+ this is .equiv, and it is an error if the symbol is already
+ defined. */
+
+void
+s_set (equiv)
+ int equiv;
+{
+ register char *name;
+ register char delim;
+ register char *end_name;
+ register symbolS *symbolP;
+
+ /* Especial apologies for the random logic:
+ this just grew, and could be parsed much more simply!
+ Dean in haste. */
+ name = input_line_pointer;
+ delim = get_symbol_end ();
+ end_name = input_line_pointer;
+ *end_name = delim;
+
+ if (name == end_name)
+ {
+ as_bad (_("expected symbol name"));
+ discard_rest_of_line ();
+ return;
+ }
+
+ SKIP_WHITESPACE ();
+
+ if (*input_line_pointer != ',')
+ {
+ *end_name = 0;
+ as_bad (_("expected comma after \"%s\""), name);
+ *end_name = delim;
+ ignore_rest_of_line ();
+ return;
+ }
+
+ input_line_pointer++;
+ *end_name = 0;
+
+ if (name[0] == '.' && name[1] == '\0')
+ {
+ /* Turn '. = mumble' into a .org mumble. */
+ register segT segment;
+ expressionS exp;
+
+ segment = get_known_segmented_expression (&exp);
+
+ if (!need_pass_2)
+ do_org (segment, &exp, 0);
+
+ *end_name = delim;
+ return;
+ }
+
+ if ((symbolP = symbol_find (name)) == NULL
+ && (symbolP = md_undefined_symbol (name)) == NULL)
+ {
+#ifndef NO_LISTING
+ /* When doing symbol listings, play games with dummy fragments living
+ outside the normal fragment chain to record the file and line info
+ for this symbol. */
+ if (listing & LISTING_SYMBOLS)
+ {
+ extern struct list_info_struct *listing_tail;
+ fragS *dummy_frag = (fragS *) xmalloc (sizeof (fragS));
+ memset (dummy_frag, 0, sizeof (fragS));
+ dummy_frag->fr_type = rs_fill;
+ dummy_frag->line = listing_tail;
+ symbolP = symbol_new (name, undefined_section, 0, dummy_frag);
+ dummy_frag->fr_symbol = symbolP;
+ }
+ else
+#endif
+ symbolP = symbol_new (name, undefined_section, 0, &zero_address_frag);
+
+#ifdef OBJ_COFF
+ /* "set" symbols are local unless otherwise specified. */
+ SF_SET_LOCAL (symbolP);
+#endif /* OBJ_COFF */
+ }
+
+ symbol_table_insert (symbolP);
+
+ *end_name = delim;
+
+ if (equiv
+ && S_IS_DEFINED (symbolP)
+ && S_GET_SEGMENT (symbolP) != reg_section)
+ as_bad (_("symbol `%s' is already defined"), S_GET_NAME (symbolP));
+
+ pseudo_set (symbolP);
+ demand_empty_rest_of_line ();
+}
+
+void
+s_space (mult)
+ int mult;
+{
+ expressionS exp;
+ expressionS val;
+ char *p = 0;
+ char *stop = NULL;
+ char stopc;
+ int bytes;
+
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
+ /* In m68k MRI mode, we need to align to a word boundary, unless
+ this is ds.b. */
+ if (flag_m68k_mri && mult > 1)
+ {
+ if (now_seg == absolute_section)
+ {
+ abs_section_offset += abs_section_offset & 1;
+ if (line_label != NULL)
+ S_SET_VALUE (line_label, abs_section_offset);
+ }
+ else if (mri_common_symbol != NULL)
+ {
+ valueT val;
+
+ val = S_GET_VALUE (mri_common_symbol);
+ if ((val & 1) != 0)
+ {
+ S_SET_VALUE (mri_common_symbol, val + 1);
+ if (line_label != NULL)
+ {
+ expressionS *symexp;
+
+ symexp = symbol_get_value_expression (line_label);
+ know (symexp->X_op == O_symbol);
+ know (symexp->X_add_symbol == mri_common_symbol);
+ symexp->X_add_number += 1;
+ }
+ }
+ }
+ else
+ {
+ do_align (1, (char *) NULL, 0, 0);
+ if (line_label != NULL)
+ {
+ symbol_set_frag (line_label, frag_now);
+ S_SET_VALUE (line_label, frag_now_fix ());
+ }
+ }
+ }
+
+ bytes = mult;
+
+ expression (&exp);
+
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer == ',')
+ {
+ ++input_line_pointer;
+ expression (&val);
+ }
+ else
+ {
+ val.X_op = O_constant;
+ val.X_add_number = 0;
+ }
+
+ if (val.X_op != O_constant
+ || val.X_add_number < - 0x80
+ || val.X_add_number > 0xff
+ || (mult != 0 && mult != 1 && val.X_add_number != 0))
+ {
+ if (exp.X_op != O_constant)
+ as_bad (_("unsupported variable size or fill value"));
+ else
+ {
+ offsetT i;
+
+ if (mult == 0)
+ mult = 1;
+ bytes = mult * exp.X_add_number;
+ for (i = 0; i < exp.X_add_number; i++)
+ emit_expr (&val, mult);
+ }
+ }
+ else
+ {
+ if (exp.X_op == O_constant)
+ {
+ long repeat;
+
+ repeat = exp.X_add_number;
+ if (mult)
+ repeat *= mult;
+ bytes = repeat;
+ if (repeat <= 0)
+ {
+ if (!flag_mri)
+ as_warn (_(".space repeat count is zero, ignored"));
+ else if (repeat < 0)
+ as_warn (_(".space repeat count is negative, ignored"));
+ goto getout;
+ }
+
+ /* If we are in the absolute section, just bump the offset. */
+ if (now_seg == absolute_section)
+ {
+ abs_section_offset += repeat;
+ goto getout;
+ }
+
+ /* If we are secretly in an MRI common section, then
+ creating space just increases the size of the common
+ symbol. */
+ if (mri_common_symbol != NULL)
+ {
+ S_SET_VALUE (mri_common_symbol,
+ S_GET_VALUE (mri_common_symbol) + repeat);
+ goto getout;
+ }
+
+ if (!need_pass_2)
+ p = frag_var (rs_fill, 1, 1, (relax_substateT) 0, (symbolS *) 0,
+ (offsetT) repeat, (char *) 0);
+ }
+ else
+ {
+ if (now_seg == absolute_section)
+ {
+ as_bad (_("space allocation too complex in absolute section"));
+ subseg_set (text_section, 0);
+ }
+
+ if (mri_common_symbol != NULL)
+ {
+ as_bad (_("space allocation too complex in common section"));
+ mri_common_symbol = NULL;
+ }
+
+ if (!need_pass_2)
+ p = frag_var (rs_space, 1, 1, (relax_substateT) 0,
+ make_expr_symbol (&exp), (offsetT) 0, (char *) 0);
+ }
+
+ if (p)
+ *p = val.X_add_number;
+ }
+
+ getout:
+
+ /* In MRI mode, after an odd number of bytes, we must align to an
+ even word boundary, unless the next instruction is a dc.b, ds.b
+ or dcb.b. */
+ if (flag_mri && (bytes & 1) != 0)
+ mri_pending_align = 1;
+
+ demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+/* This is like s_space, but the value is a floating point number with
+ the given precision. This is for the MRI dcb.s pseudo-op and
+ friends. */
+
+void
+s_float_space (float_type)
+ int float_type;
+{
+ offsetT count;
+ int flen;
+ char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
+ char *stop = NULL;
+ char stopc;
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
+ count = get_absolute_expression ();
+
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ {
+ as_bad (_("missing value"));
+ ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+ return;
+ }
+
+ ++input_line_pointer;
+
+ SKIP_WHITESPACE ();
+
+ /* Skip any 0{letter} that may be present. Don't even check if the
+ * letter is legal. */
+ if (input_line_pointer[0] == '0'
+ && ISALPHA (input_line_pointer[1]))
+ input_line_pointer += 2;
+
+ /* Accept :xxxx, where the x's are hex digits, for a floating point
+ with the exact digits specified. */
+ if (input_line_pointer[0] == ':')
+ {
+ flen = hex_float (float_type, temp);
+ if (flen < 0)
+ {
+ ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+ return;
+ }
+ }
+ else
+ {
+ char *err;
+
+ err = md_atof (float_type, temp, &flen);
+ know (flen <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
+ know (flen > 0);
+ if (err)
+ {
+ as_bad (_("bad floating literal: %s"), err);
+ ignore_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+ return;
+ }
+ }
+
+ while (--count >= 0)
+ {
+ char *p;
+
+ p = frag_more (flen);
+ memcpy (p, temp, (unsigned int) flen);
+ }
+
+ demand_empty_rest_of_line ();
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+/* Handle the .struct pseudo-op, as found in MIPS assemblers. */
+
+void
+s_struct (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ char *stop = NULL;
+ char stopc;
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+ abs_section_offset = get_absolute_expression ();
+ subseg_set (absolute_section, 0);
+ demand_empty_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+void
+s_text (ignore)
+ int ignore ATTRIBUTE_UNUSED;
+{
+ register int temp;
+
+ temp = get_absolute_expression ();
+ subseg_set (text_section, (subsegT) temp);
+ demand_empty_rest_of_line ();
+#ifdef OBJ_VMS
+ const_flag &= ~IN_DEFAULT_SECTION;
+#endif
+}
+\f
+void
+demand_empty_rest_of_line ()
+{
+ SKIP_WHITESPACE ();
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
+ input_line_pointer++;
+ else
+ ignore_rest_of_line ();
+
+ /* Return having already swallowed end-of-line. */
+}
+
+void
+ignore_rest_of_line ()
+{
+ /* For suspect lines: gives warning. */
+ if (!is_end_of_line[(unsigned char) *input_line_pointer])
+ {
+ if (ISPRINT (*input_line_pointer))
+ as_warn (_("rest of line ignored; first ignored character is `%c'"),
+ *input_line_pointer);
+ else
+ as_warn (_("rest of line ignored; first ignored character valued 0x%x"),
+ *input_line_pointer);
+
+ while (input_line_pointer < buffer_limit
+ && !is_end_of_line[(unsigned char) *input_line_pointer])
+ input_line_pointer++;
+ }
+
+ input_line_pointer++;
+
+ /* Return pointing just after end-of-line. */
+ know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
+}
+
+void
+discard_rest_of_line ()
+{
+ while (input_line_pointer < buffer_limit
+ && !is_end_of_line[(unsigned char) *input_line_pointer])
+ input_line_pointer++;
+
+ input_line_pointer++;
+
+ /* Return pointing just after end-of-line. */
+ know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
+}
+
+/* In: Pointer to a symbol.
+ Input_line_pointer->expression.
+
+ Out: Input_line_pointer->just after any whitespace after expression.
+ Tried to set symbol to value of expression.
+ Will change symbols type, value, and frag; */
+
+void
+pseudo_set (symbolP)
+ symbolS *symbolP;
+{
+ expressionS exp;
+#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
+ int ext;
+#endif /* OBJ_AOUT or OBJ_BOUT */
+
+ know (symbolP); /* NULL pointer is logic error. */
+#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
+ ext = S_IS_EXTERNAL (symbolP);
+#endif /* OBJ_AOUT or OBJ_BOUT */
+
+ (void) expression (&exp);
+
+ if (exp.X_op == O_illegal)
+ as_bad (_("illegal expression"));
+ else if (exp.X_op == O_absent)
+ as_bad (_("missing expression"));
+ else if (exp.X_op == O_big)
+ {
+ if (exp.X_add_number > 0)
+ as_bad (_("bignum invalid"));
+ else
+ as_bad (_("floating point number invalid"));
+ }
+ else if (exp.X_op == O_subtract
+ && SEG_NORMAL (S_GET_SEGMENT (exp.X_add_symbol))
+ && (symbol_get_frag (exp.X_add_symbol)
+ == symbol_get_frag (exp.X_op_symbol)))
+ {
+ exp.X_op = O_constant;
+ exp.X_add_number = (S_GET_VALUE (exp.X_add_symbol)
+ - S_GET_VALUE (exp.X_op_symbol));
+ }
+
+ switch (exp.X_op)
+ {
+ case O_illegal:
+ case O_absent:
+ case O_big:
+ exp.X_add_number = 0;
+ /* Fall through. */
+ case O_constant:
+ S_SET_SEGMENT (symbolP, absolute_section);
+#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
+ if (ext)
+ S_SET_EXTERNAL (symbolP);
+ else
+ S_CLEAR_EXTERNAL (symbolP);
+#endif /* OBJ_AOUT or OBJ_BOUT */
+ S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
+ if (exp.X_op != O_constant)
+ symbol_set_frag (symbolP, &zero_address_frag);
+ break;
+
+ case O_register:
+ S_SET_SEGMENT (symbolP, reg_section);
+ S_SET_VALUE (symbolP, (valueT) exp.X_add_number);
+ symbol_set_frag (symbolP, &zero_address_frag);
+ break;
+
+ case O_symbol:
+ if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section
+ || exp.X_add_number != 0)
+ symbol_set_value_expression (symbolP, &exp);
+ else if (symbol_section_p (symbolP))
+ as_bad ("attempt to set value of section symbol");
+ else
+ {
+ symbolS *s = exp.X_add_symbol;
+
+ S_SET_SEGMENT (symbolP, S_GET_SEGMENT (s));
+#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
if (ext)
S_SET_EXTERNAL (symbolP);
else
S_CLEAR_EXTERNAL (symbolP);
#endif /* OBJ_AOUT or OBJ_BOUT */
S_SET_VALUE (symbolP,
- exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
- symbolP->sy_frag = exp.X_add_symbol->sy_frag;
+ exp.X_add_number + S_GET_VALUE (s));
+ symbol_set_frag (symbolP, symbol_get_frag (s));
+ copy_symbol_attributes (symbolP, s);
}
break;
default:
/* The value is some complex expression.
FIXME: Should we set the segment to anything? */
- symbolP->sy_value = exp;
+ symbol_set_value_expression (symbolP, &exp);
break;
}
}
\f
-/*
- * cons()
- *
- * CONStruct more frag of .bytes, or .words etc.
- * Should need_pass_2 be 1 then emit no frag(s).
- * This understands EXPRESSIONS.
- *
- * Bug (?)
- *
- * This has a split personality. We use expression() to read the
- * value. We can detect if the value won't fit in a byte or word.
- * But we can't detect if expression() discarded significant digits
- * in the case of a long. Not worth the crocks required to fix it.
- */
+/* cons()
+
+ CONStruct more frag of .bytes, or .words etc.
+ Should need_pass_2 be 1 then emit no frag(s).
+ This understands EXPRESSIONS.
+
+ Bug (?)
+
+ This has a split personality. We use expression() to read the
+ value. We can detect if the value won't fit in a byte or word.
+ But we can't detect if expression() discarded significant digits
+ in the case of a long. Not worth the crocks required to fix it. */
/* Select a parser for cons expressions. */
are defined, which is the normal case, then only simple expressions
are permitted. */
+#ifdef TC_M68K
+static void
+parse_mri_cons PARAMS ((expressionS *exp, unsigned int nbytes));
+#endif
+
#ifndef TC_PARSE_CONS_EXPRESSION
#ifdef BITFIELD_CONS_EXPRESSIONS
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_bitfield_cons (EXP, NBYTES)
-static void
-parse_bitfield_cons PARAMS ((expressionS *exp, unsigned int nbytes));
-#endif
-#ifdef MRI
-#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_mri_cons (EXP)
static void
-parse_mri_cons PARAMS ((expressionS *exp));
+parse_bitfield_cons PARAMS ((expressionS *exp, unsigned int nbytes));
#endif
#ifdef REPEAT_CONS_EXPRESSIONS
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES)
#endif
#endif
-/* worker to do .byte etc statements */
-/* clobbers input_line_pointer, checks */
-/* end-of-line. */
-void
-cons (nbytes)
- register int nbytes; /* 1=.byte, 2=.word, 4=.long */
+/* Worker to do .byte etc statements.
+ Clobbers input_line_pointer and checks end-of-line. */
+
+static void
+cons_worker (nbytes, rva)
+ register int nbytes; /* 1=.byte, 2=.word, 4=.long. */
+ int rva;
{
+ int c;
expressionS exp;
+ char *stop = NULL;
+ char stopc;
+
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
if (is_it_end_of_statement ())
{
demand_empty_rest_of_line ();
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
return;
}
+#ifdef md_cons_align
+ md_cons_align (nbytes);
+#endif
+
+ c = 0;
do
{
- TC_PARSE_CONS_EXPRESSION (&exp, (unsigned int) nbytes);
+#ifdef TC_M68K
+ if (flag_m68k_mri)
+ parse_mri_cons (&exp, (unsigned int) nbytes);
+ else
+#endif
+ TC_PARSE_CONS_EXPRESSION (&exp, (unsigned int) nbytes);
+
+ if (rva)
+ {
+ if (exp.X_op == O_symbol)
+ exp.X_op = O_symbol_rva;
+ else
+ as_fatal (_("rva without symbol"));
+ }
emit_expr (&exp, (unsigned int) nbytes);
+ ++c;
}
while (*input_line_pointer++ == ',');
- input_line_pointer--; /* Put terminator back into stream. */
+ /* In MRI mode, after an odd number of bytes, we must align to an
+ even word boundary, unless the next instruction is a dc.b, ds.b
+ or dcb.b. */
+ if (flag_mri && nbytes == 1 && (c & 1) != 0)
+ mri_pending_align = 1;
+
+ input_line_pointer--; /* Put terminator back into stream. */
+
demand_empty_rest_of_line ();
-} /* cons() */
+
+ if (flag_mri)
+ mri_comment_end (stop, stopc);
+}
+
+void
+cons (size)
+ int size;
+{
+ cons_worker (size, 0);
+}
+
+void
+s_rva (size)
+ int size;
+{
+ cons_worker (size, 1);
+}
/* Put the contents of expression EXP into the object file using
NBYTES bytes. If need_pass_2 is 1, this does nothing. */
if (need_pass_2)
return;
+#ifndef NO_LISTING
+#ifdef OBJ_ELF
+ /* When gcc emits DWARF 1 debugging pseudo-ops, a line number will
+ appear as a four byte positive constant in the .line section,
+ followed by a 2 byte 0xffff. Look for that case here. */
+ {
+ static int dwarf_line = -1;
+
+ if (strcmp (segment_name (now_seg), ".line") != 0)
+ dwarf_line = -1;
+ else if (dwarf_line >= 0
+ && nbytes == 2
+ && exp->X_op == O_constant
+ && (exp->X_add_number == -1 || exp->X_add_number == 0xffff))
+ listing_source_line ((unsigned int) dwarf_line);
+ else if (nbytes == 4
+ && exp->X_op == O_constant
+ && exp->X_add_number >= 0)
+ dwarf_line = exp->X_add_number;
+ else
+ dwarf_line = -1;
+ }
+
+ /* When gcc emits DWARF 1 debugging pseudo-ops, a file name will
+ appear as a 2 byte TAG_compile_unit (0x11) followed by a 2 byte
+ AT_sibling (0x12) followed by a four byte address of the sibling
+ followed by a 2 byte AT_name (0x38) followed by the name of the
+ file. We look for that case here. */
+ {
+ static int dwarf_file = 0;
+
+ if (strcmp (segment_name (now_seg), ".debug") != 0)
+ dwarf_file = 0;
+ else if (dwarf_file == 0
+ && nbytes == 2
+ && exp->X_op == O_constant
+ && exp->X_add_number == 0x11)
+ dwarf_file = 1;
+ else if (dwarf_file == 1
+ && nbytes == 2
+ && exp->X_op == O_constant
+ && exp->X_add_number == 0x12)
+ dwarf_file = 2;
+ else if (dwarf_file == 2
+ && nbytes == 4)
+ dwarf_file = 3;
+ else if (dwarf_file == 3
+ && nbytes == 2
+ && exp->X_op == O_constant
+ && exp->X_add_number == 0x38)
+ dwarf_file = 4;
+ else
+ dwarf_file = 0;
+
+ /* The variable dwarf_file_string tells stringer that the string
+ may be the name of the source file. */
+ if (dwarf_file == 4)
+ dwarf_file_string = 1;
+ else
+ dwarf_file_string = 0;
+ }
+#endif
+#endif
+
+ if (check_eh_frame (exp, &nbytes))
+ return;
+
op = exp->X_op;
+ /* Allow `.word 0' in the absolute section. */
+ if (now_seg == absolute_section)
+ {
+ if (op != O_constant || exp->X_add_number != 0)
+ as_bad (_("attempt to store value in absolute section"));
+ abs_section_offset += nbytes;
+ return;
+ }
+
/* Handle a negative bignum. */
if (op == O_uminus
&& exp->X_add_number == 0
- && exp->X_add_symbol->sy_value.X_op == O_big
- && exp->X_add_symbol->sy_value.X_add_number > 0)
+ && symbol_get_value_expression (exp->X_add_symbol)->X_op == O_big
+ && symbol_get_value_expression (exp->X_add_symbol)->X_add_number > 0)
{
int i;
unsigned long carry;
- exp = &exp->X_add_symbol->sy_value;
+ exp = symbol_get_value_expression (exp->X_add_symbol);
/* Negate the bignum: one's complement each digit and add 1. */
carry = 1;
{
unsigned long next;
- next = (((~ (generic_bignum[i] & LITTLENUM_MASK))
+ next = (((~(generic_bignum[i] & LITTLENUM_MASK))
& LITTLENUM_MASK)
+ carry);
generic_bignum[i] = next & LITTLENUM_MASK;
if (op == O_absent || op == O_illegal)
{
- as_warn ("zero assumed for missing expression");
+ as_warn (_("zero assumed for missing expression"));
exp->X_add_number = 0;
op = O_constant;
}
else if (op == O_big && exp->X_add_number <= 0)
{
- as_bad ("floating point number invalid; zero assumed");
+ as_bad (_("floating point number invalid"));
exp->X_add_number = 0;
op = O_constant;
}
else if (op == O_register)
{
- as_warn ("register value used as expression");
+ as_warn (_("register value used as expression"));
op = O_constant;
}
x = (struct broken_word *) xmalloc (sizeof (struct broken_word));
x->next_broken_word = broken_words;
broken_words = x;
+ x->seg = now_seg;
+ x->subseg = now_subseg;
x->frag = frag_now;
x->word_goes_here = p;
x->dispfrag = 0;
x->sub = exp->X_op_symbol;
x->addnum = exp->X_add_number;
x->added = 0;
+ x->use_jump = 0;
new_broken_words++;
return;
}
valueT val;
int gencnt;
- if (! exp->X_unsigned && exp->X_add_number < 0)
+ if (!exp->X_unsigned && exp->X_add_number < 0)
extra_digit = (valueT) -1;
val = (valueT) exp->X_add_number;
gencnt = 0;
if (op == O_constant)
{
- register long get;
- register long use;
- register long mask;
- register long unmask;
+ register valueT get;
+ register valueT use;
+ register valueT mask;
+ valueT hibit;
+ register valueT unmask;
/* JF << of >= number of bits in the object is undefined. In
- particular SPARC (Sun 4) has problems */
- if (nbytes >= sizeof (long))
- mask = 0;
+ particular SPARC (Sun 4) has problems. */
+ if (nbytes >= sizeof (valueT))
+ {
+ mask = 0;
+ if (nbytes > sizeof (valueT))
+ hibit = 0;
+ else
+ hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
+ }
else
- mask = ~0 << (BITS_PER_CHAR * nbytes); /* Don't store these bits. */
+ {
+ /* Don't store these bits. */
+ mask = ~(valueT) 0 << (BITS_PER_CHAR * nbytes);
+ hibit = (valueT) 1 << (nbytes * BITS_PER_CHAR - 1);
+ }
- unmask = ~mask; /* Do store these bits. */
+ unmask = ~mask; /* Do store these bits. */
#ifdef NEVER
"Do this mod if you want every overflow check to assume SIGNED 2's complement data.";
- mask = ~(unmask >> 1); /* Includes sign bit now. */
+ mask = ~(unmask >> 1); /* Includes sign bit now. */
#endif
get = exp->X_add_number;
use = get & unmask;
- if ((get & mask) != 0 && (get & mask) != mask)
- { /* Leading bits contain both 0s & 1s. */
- as_warn ("Value 0x%lx truncated to 0x%lx.", get, use);
+ if ((get & mask) != 0
+ && ((get & mask) != mask
+ || (get & hibit) == 0))
+ { /* Leading bits contain both 0s & 1s. */
+ as_warn (_("value 0x%lx truncated to 0x%lx"),
+ (unsigned long) get, (unsigned long) use);
}
- /* put bytes in right order. */
- md_number_to_chars (p, (valueT) use, (int) nbytes);
+ /* Put bytes in right order. */
+ md_number_to_chars (p, use, (int) nbytes);
}
else if (op == O_big)
{
- int size;
+ unsigned int size;
LITTLENUM_TYPE *nums;
know (nbytes % CHARS_PER_LITTLENUM == 0);
size = exp->X_add_number * CHARS_PER_LITTLENUM;
if (nbytes < size)
{
- as_warn ("Bignum truncated to %d bytes", nbytes);
+ as_warn (_("bignum truncated to %d bytes"), nbytes);
size = nbytes;
}
}
nums = generic_bignum + size / CHARS_PER_LITTLENUM;
- while (size > 0)
+ while (size >= CHARS_PER_LITTLENUM)
{
--nums;
md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
else
{
nums = generic_bignum;
- while (size > 0)
+ while (size >= CHARS_PER_LITTLENUM)
{
md_number_to_chars (p, (valueT) *nums, CHARS_PER_LITTLENUM);
++nums;
nbytes -= CHARS_PER_LITTLENUM;
}
- while (nbytes > 0)
+ while (nbytes >= CHARS_PER_LITTLENUM)
{
md_number_to_chars (p, extra_digit, CHARS_PER_LITTLENUM);
nbytes -= CHARS_PER_LITTLENUM;
}
else
{
- md_number_to_chars (p, (valueT) 0, (int) nbytes);
+ memset (p, 0, nbytes);
/* Now we need to generate a fixS to record the symbol value.
This is easy for BFD. For other targets it can be more
#ifdef TC_CONS_FIX_NEW
TC_CONS_FIX_NEW (frag_now, p - frag_now->fr_literal, nbytes, exp);
#else
- fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp, 0,
- /* @@ Should look at CPU word size. */
- nbytes == 2 ? BFD_RELOC_16
- : nbytes == 8 ? BFD_RELOC_64
- : BFD_RELOC_32);
+ {
+ bfd_reloc_code_real_type r;
+
+ switch (nbytes)
+ {
+ case 1:
+ r = BFD_RELOC_8;
+ break;
+ case 2:
+ r = BFD_RELOC_16;
+ break;
+ case 4:
+ r = BFD_RELOC_32;
+ break;
+ case 8:
+ r = BFD_RELOC_64;
+ break;
+ default:
+ as_bad (_("unsupported BFD relocation size %u"), nbytes);
+ r = BFD_RELOC_32;
+ break;
+ }
+ fix_new_exp (frag_now, p - frag_now->fr_literal, (int) nbytes, exp,
+ 0, r);
+ }
#endif
#else
#ifdef TC_CONS_FIX_NEW
To use this function the tc-XXX.h file should define
BITFIELD_CONS_EXPRESSIONS. */
-static void
+static void
parse_bitfield_cons (exp, nbytes)
expressionS *exp;
unsigned int nbytes;
(void) expression (exp);
if (*input_line_pointer == ':')
- { /* bitfields */
+ {
+ /* Bitfields. */
long value = 0;
for (;;)
{
input_line_pointer = hold;
break;
- } /* next piece is not a bitfield */
+ } /* Next piece is not a bitfield. */
/* In the general case, we can't allow
full expressions with symbol
widths, positions, and masks which most
of our current object formats don't
support.
-
+
In the specific case where a symbol
*is* defined in this assembly, we
*could* build fixups and track it, but
backends. I'm lazy. I'll take any
SEG_ABSOLUTE. I think that means that
you can use a previous .set or
- .equ type symbol. xoxorich. */
+ .equ type symbol. xoxorich. */
if (exp->X_op == O_absent)
{
- as_warn ("using a bit field width of zero");
+ as_warn (_("using a bit field width of zero"));
exp->X_add_number = 0;
exp->X_op = O_constant;
- } /* implied zero width bitfield */
+ } /* Implied zero width bitfield. */
if (exp->X_op != O_constant)
{
*input_line_pointer = '\0';
- as_bad ("field width \"%s\" too complex for a bitfield", hold);
+ as_bad (_("field width \"%s\" too complex for a bitfield"), hold);
*input_line_pointer = ':';
demand_empty_rest_of_line ();
return;
- } /* too complex */
+ } /* Too complex. */
if ((width = exp->X_add_number) > (BITS_PER_CHAR * nbytes))
{
- as_warn ("field width %lu too big to fit in %d bytes: truncated to %d bits",
+ as_warn (_("field width %lu too big to fit in %d bytes: truncated to %d bits"),
width, nbytes, (BITS_PER_CHAR * nbytes));
width = BITS_PER_CHAR * nbytes;
- } /* too big */
+ } /* Too big. */
if (width > bits_available)
{
input_line_pointer = hold;
exp->X_add_number = value;
break;
- } /* won't fit */
+ } /* Won't fit. */
- hold = ++input_line_pointer; /* skip ':' */
+ /* Skip ':'. */
+ hold = ++input_line_pointer;
(void) expression (exp);
if (exp->X_op != O_constant)
char cache = *input_line_pointer;
*input_line_pointer = '\0';
- as_bad ("field value \"%s\" too complex for a bitfield", hold);
+ as_bad (_("field value \"%s\" too complex for a bitfield"), hold);
*input_line_pointer = cache;
demand_empty_rest_of_line ();
return;
- } /* too complex */
+ } /* Too complex. */
value |= ((~(-1 << width) & exp->X_add_number)
<< ((BITS_PER_CHAR * nbytes) - bits_available));
|| *input_line_pointer != ',')
{
break;
- } /* all the bitfields we're gonna get */
+ } /* All the bitfields we're gonna get. */
hold = ++input_line_pointer;
(void) expression (exp);
- } /* forever loop */
+ }
exp->X_add_number = value;
exp->X_op = O_constant;
exp->X_unsigned = 1;
- } /* if looks like a bitfield */
-} /* parse_bitfield_cons() */
+ }
+}
#endif /* BITFIELD_CONS_EXPRESSIONS */
\f
-#ifdef MRI
+/* Handle an MRI style string expression. */
+#ifdef TC_M68K
static void
parse_mri_cons (exp, nbytes)
expressionS *exp;
unsigned int nbytes;
{
- if (*input_line_pointer == '\'')
+ if (*input_line_pointer != '\''
+ && (input_line_pointer[1] != '\''
+ || (*input_line_pointer != 'A'
+ && *input_line_pointer != 'E')))
+ TC_PARSE_CONS_EXPRESSION (exp, nbytes);
+ else
{
- /* An MRI style string, cut into as many bytes as will fit into
+ unsigned int scan;
+ unsigned int result = 0;
+
+ /* An MRI style string. Cut into as many bytes as will fit into
a nbyte chunk, left justify if necessary, and separate with
- commas so we can try again later */
- int scan = 0;
- unsigned int result = 0;
+ commas so we can try again later. */
+ if (*input_line_pointer == 'A')
+ ++input_line_pointer;
+ else if (*input_line_pointer == 'E')
+ {
+ as_bad (_("EBCDIC constants are not supported"));
+ ++input_line_pointer;
+ }
+
input_line_pointer++;
for (scan = 0; scan < nbytes; scan++)
{
result = (result << 8) | (*input_line_pointer++);
}
- /* Left justify */
+ /* Left justify. */
while (scan < nbytes)
{
result <<= 8;
scan++;
}
- /* Create correct expression */
+
+ /* Create correct expression. */
exp->X_op = O_constant;
exp->X_add_number = result;
- /* Fake it so that we can read the next char too */
+
+ /* Fake it so that we can read the next char too. */
if (input_line_pointer[0] != '\'' ||
(input_line_pointer[0] == '\'' && input_line_pointer[1] == '\''))
{
else
input_line_pointer++;
}
- else
- expression (&exp);
}
-
-#endif /* MRI */
+#endif /* TC_M68K */
\f
#ifdef REPEAT_CONS_EXPRESSIONS
if (count.X_op != O_constant
|| count.X_add_number <= 0)
{
- as_warn ("Unresolvable or nonpositive repeat count; using 1");
+ as_warn (_("unresolvable or nonpositive repeat count; using 1"));
return;
}
#endif /* REPEAT_CONS_EXPRESSIONS */
\f
-/*
- * float_cons()
- *
- * CONStruct some more frag chars of .floats .ffloats etc.
- * Makes 0 or more new frags.
- * If need_pass_2 == 1, no frags are emitted.
- * This understands only floating literals, not expressions. Sorry.
- *
- * A floating constant is defined by atof_generic(), except it is preceded
- * by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its
- * reading, I decided to be incompatible. This always tries to give you
- * rounded bits to the precision of the pseudo-op. Former AS did premature
- * truncatation, restored noisy bits instead of trailing 0s AND gave you
- * a choice of 2 flavours of noise according to which of 2 floating-point
- * scanners you directed AS to use.
- *
- * In: input_line_pointer->whitespace before, or '0' of flonum.
- *
- */
+/* Parse a floating point number represented as a hex constant. This
+ permits users to specify the exact bits they want in the floating
+ point number. */
+
+static int
+hex_float (float_type, bytes)
+ int float_type;
+ char *bytes;
+{
+ int length;
+ int i;
+
+ switch (float_type)
+ {
+ case 'f':
+ case 'F':
+ case 's':
+ case 'S':
+ length = 4;
+ break;
+
+ case 'd':
+ case 'D':
+ case 'r':
+ case 'R':
+ length = 8;
+ break;
+
+ case 'x':
+ case 'X':
+ length = 12;
+ break;
+
+ case 'p':
+ case 'P':
+ length = 12;
+ break;
+
+ default:
+ as_bad (_("unknown floating type type '%c'"), float_type);
+ return -1;
+ }
+
+ /* It would be nice if we could go through expression to parse the
+ hex constant, but if we get a bignum it's a pain to sort it into
+ the buffer correctly. */
+ i = 0;
+ while (hex_p (*input_line_pointer) || *input_line_pointer == '_')
+ {
+ int d;
+
+ /* The MRI assembler accepts arbitrary underscores strewn about
+ through the hex constant, so we ignore them as well. */
+ if (*input_line_pointer == '_')
+ {
+ ++input_line_pointer;
+ continue;
+ }
+
+ if (i >= length)
+ {
+ as_warn (_("floating point constant too large"));
+ return -1;
+ }
+ d = hex_value (*input_line_pointer) << 4;
+ ++input_line_pointer;
+ while (*input_line_pointer == '_')
+ ++input_line_pointer;
+ if (hex_p (*input_line_pointer))
+ {
+ d += hex_value (*input_line_pointer);
+ ++input_line_pointer;
+ }
+ if (target_big_endian)
+ bytes[i] = d;
+ else
+ bytes[length - i - 1] = d;
+ ++i;
+ }
+
+ if (i < length)
+ {
+ if (target_big_endian)
+ memset (bytes + i, 0, length - i);
+ else
+ memset (bytes, 0, length - i);
+ }
+
+ return length;
+}
+
+/* float_cons()
+
+ CONStruct some more frag chars of .floats .ffloats etc.
+ Makes 0 or more new frags.
+ If need_pass_2 == 1, no frags are emitted.
+ This understands only floating literals, not expressions. Sorry.
+
+ A floating constant is defined by atof_generic(), except it is preceded
+ by 0d 0f 0g or 0h. After observing the STRANGE way my BSD AS does its
+ reading, I decided to be incompatible. This always tries to give you
+ rounded bits to the precision of the pseudo-op. Former AS did premature
+ truncatation, restored noisy bits instead of trailing 0s AND gave you
+ a choice of 2 flavours of noise according to which of 2 floating-point
+ scanners you directed AS to use.
+
+ In: input_line_pointer->whitespace before, or '0' of flonum. */
void
float_cons (float_type)
- /* Clobbers input_line-pointer, checks end-of-line. */
- register int float_type; /* 'f':.ffloat ... 'F':.float ... */
+ /* Clobbers input_line-pointer, checks end-of-line. */
+ register int float_type; /* 'f':.ffloat ... 'F':.float ... */
{
register char *p;
- int length; /* Number of chars in an object. */
- register char *err; /* Error from scanning floating literal. */
+ int length; /* Number of chars in an object. */
+ register char *err; /* Error from scanning floating literal. */
char temp[MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT];
if (is_it_end_of_statement ())
return;
}
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
do
{
- /* input_line_pointer->1st char of a flonum (we hope!). */
+ /* input_line_pointer->1st char of a flonum (we hope!). */
SKIP_WHITESPACE ();
/* Skip any 0{letter} that may be present. Don't even check if the
- * letter is legal. Someone may invent a "z" format and this routine
- * has no use for such information. Lusers beware: you get
- * diagnostics if your input is ill-conditioned.
- */
- if (input_line_pointer[0] == '0' && isalpha (input_line_pointer[1]))
+ letter is legal. Someone may invent a "z" format and this routine
+ has no use for such information. Lusers beware: you get
+ diagnostics if your input is ill-conditioned. */
+ if (input_line_pointer[0] == '0'
+ && ISALPHA (input_line_pointer[1]))
input_line_pointer += 2;
- err = md_atof (float_type, temp, &length);
- know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
- know (length > 0);
- if (err)
+ /* Accept :xxxx, where the x's are hex digits, for a floating
+ point with the exact digits specified. */
+ if (input_line_pointer[0] == ':')
{
- as_bad ("Bad floating literal: %s", err);
- ignore_rest_of_line ();
- return;
+ ++input_line_pointer;
+ length = hex_float (float_type, temp);
+ if (length < 0)
+ {
+ ignore_rest_of_line ();
+ return;
+ }
+ }
+ else
+ {
+ err = md_atof (float_type, temp, &length);
+ know (length <= MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT);
+ know (length > 0);
+ if (err)
+ {
+ as_bad (_("bad floating literal: %s"), err);
+ ignore_rest_of_line ();
+ return;
+ }
}
if (!need_pass_2)
++input_line_pointer;
expression (&count_exp);
+
if (count_exp.X_op != O_constant
|| count_exp.X_add_number <= 0)
- {
- as_warn ("unresolvable or nonpositive repeat count; using 1");
- }
+ as_warn (_("unresolvable or nonpositive repeat count; using 1"));
else
count = count_exp.X_add_number;
}
}
while (*input_line_pointer++ == ',');
- --input_line_pointer; /* Put terminator back into stream. */
+ /* Put terminator back into stream. */
+ --input_line_pointer;
demand_empty_rest_of_line ();
-} /* float_cons() */
+}
\f
-/*
- * stringer()
- *
- * We read 0 or more ',' seperated, double-quoted strings.
- *
- * Caller should have checked need_pass_2 is FALSE because we don't check it.
- */
+/* Return the size of a LEB128 value. */
+
+static inline int
+sizeof_sleb128 (value)
+ offsetT value;
+{
+ register int size = 0;
+ register unsigned byte;
+
+ do
+ {
+ byte = (value & 0x7f);
+ /* Sadly, we cannot rely on typical arithmetic right shift behaviour.
+ Fortunately, we can structure things so that the extra work reduces
+ to a noop on systems that do things "properly". */
+ value = (value >> 7) | ~(-(offsetT)1 >> 7);
+ size += 1;
+ }
+ while (!(((value == 0) && ((byte & 0x40) == 0))
+ || ((value == -1) && ((byte & 0x40) != 0))));
+
+ return size;
+}
+
+static inline int
+sizeof_uleb128 (value)
+ valueT value;
+{
+ register int size = 0;
+ register unsigned byte;
+
+ do
+ {
+ byte = (value & 0x7f);
+ value >>= 7;
+ size += 1;
+ }
+ while (value != 0);
+
+ return size;
+}
+
+int
+sizeof_leb128 (value, sign)
+ valueT value;
+ int sign;
+{
+ if (sign)
+ return sizeof_sleb128 ((offsetT) value);
+ else
+ return sizeof_uleb128 (value);
+}
+
+/* Output a LEB128 value. */
+
+static inline int
+output_sleb128 (p, value)
+ char *p;
+ offsetT value;
+{
+ register char *orig = p;
+ register int more;
+
+ do
+ {
+ unsigned byte = (value & 0x7f);
+
+ /* Sadly, we cannot rely on typical arithmetic right shift behaviour.
+ Fortunately, we can structure things so that the extra work reduces
+ to a noop on systems that do things "properly". */
+ value = (value >> 7) | ~(-(offsetT)1 >> 7);
+
+ more = !((((value == 0) && ((byte & 0x40) == 0))
+ || ((value == -1) && ((byte & 0x40) != 0))));
+ if (more)
+ byte |= 0x80;
+
+ *p++ = byte;
+ }
+ while (more);
+
+ return p - orig;
+}
+
+static inline int
+output_uleb128 (p, value)
+ char *p;
+ valueT value;
+{
+ char *orig = p;
+
+ do
+ {
+ unsigned byte = (value & 0x7f);
+ value >>= 7;
+ if (value != 0)
+ /* More bytes to follow. */
+ byte |= 0x80;
+
+ *p++ = byte;
+ }
+ while (value != 0);
+
+ return p - orig;
+}
+
+int
+output_leb128 (p, value, sign)
+ char *p;
+ valueT value;
+ int sign;
+{
+ if (sign)
+ return output_sleb128 (p, (offsetT) value);
+ else
+ return output_uleb128 (p, value);
+}
+
+/* Do the same for bignums. We combine sizeof with output here in that
+ we don't output for NULL values of P. It isn't really as critical as
+ for "normal" values that this be streamlined. */
+
+static inline int
+output_big_sleb128 (p, bignum, size)
+ char *p;
+ LITTLENUM_TYPE *bignum;
+ int size;
+{
+ char *orig = p;
+ valueT val = 0;
+ int loaded = 0;
+ unsigned byte;
+
+ /* Strip leading sign extensions off the bignum. */
+ while (size > 0 && bignum[size - 1] == (LITTLENUM_TYPE) -1)
+ size--;
+
+ do
+ {
+ if (loaded < 7 && size > 0)
+ {
+ val |= (*bignum << loaded);
+ loaded += 8 * CHARS_PER_LITTLENUM;
+ size--;
+ bignum++;
+ }
+
+ byte = val & 0x7f;
+ loaded -= 7;
+ val >>= 7;
+
+ if (size == 0)
+ {
+ if ((val == 0 && (byte & 0x40) == 0)
+ || (~(val | ~(((valueT) 1 << loaded) - 1)) == 0
+ && (byte & 0x40) != 0))
+ byte |= 0x80;
+ }
+
+ if (orig)
+ *p = byte;
+ p++;
+ }
+ while (byte & 0x80);
+
+ return p - orig;
+}
+static inline int
+output_big_uleb128 (p, bignum, size)
+ char *p;
+ LITTLENUM_TYPE *bignum;
+ int size;
+{
+ char *orig = p;
+ valueT val = 0;
+ int loaded = 0;
+ unsigned byte;
+
+ /* Strip leading zeros off the bignum. */
+ /* XXX: Is this needed? */
+ while (size > 0 && bignum[size - 1] == 0)
+ size--;
+
+ do
+ {
+ if (loaded < 7 && size > 0)
+ {
+ val |= (*bignum << loaded);
+ loaded += 8 * CHARS_PER_LITTLENUM;
+ size--;
+ bignum++;
+ }
+
+ byte = val & 0x7f;
+ loaded -= 7;
+ val >>= 7;
+
+ if (size > 0 || val)
+ byte |= 0x80;
+
+ if (orig)
+ *p = byte;
+ p++;
+ }
+ while (byte & 0x80);
+
+ return p - orig;
+}
+
+static int
+output_big_leb128 (p, bignum, size, sign)
+ char *p;
+ LITTLENUM_TYPE *bignum;
+ int size, sign;
+{
+ if (sign)
+ return output_big_sleb128 (p, bignum, size);
+ else
+ return output_big_uleb128 (p, bignum, size);
+}
+
+/* Generate the appropriate fragments for a given expression to emit a
+ leb128 value. */
+
+void
+emit_leb128_expr (exp, sign)
+ expressionS *exp;
+ int sign;
+{
+ operatorT op = exp->X_op;
+ int nbytes;
+
+ if (op == O_absent || op == O_illegal)
+ {
+ as_warn (_("zero assumed for missing expression"));
+ exp->X_add_number = 0;
+ op = O_constant;
+ }
+ else if (op == O_big && exp->X_add_number <= 0)
+ {
+ as_bad (_("floating point number invalid"));
+ exp->X_add_number = 0;
+ op = O_constant;
+ }
+ else if (op == O_register)
+ {
+ as_warn (_("register value used as expression"));
+ op = O_constant;
+ }
+
+ /* Let check_eh_frame know that data is being emitted. nbytes == -1 is
+ a signal that this is leb128 data. It shouldn't optimize this away. */
+ nbytes = -1;
+ if (check_eh_frame (exp, &nbytes))
+ abort ();
+
+ /* Let the backend know that subsequent data may be byte aligned. */
+#ifdef md_cons_align
+ md_cons_align (1);
+#endif
+
+ if (op == O_constant)
+ {
+ /* If we've got a constant, emit the thing directly right now. */
+
+ valueT value = exp->X_add_number;
+ int size;
+ char *p;
+
+ size = sizeof_leb128 (value, sign);
+ p = frag_more (size);
+ output_leb128 (p, value, sign);
+ }
+ else if (op == O_big)
+ {
+ /* O_big is a different sort of constant. */
+
+ int size;
+ char *p;
+
+ size = output_big_leb128 (NULL, generic_bignum, exp->X_add_number, sign);
+ p = frag_more (size);
+ output_big_leb128 (p, generic_bignum, exp->X_add_number, sign);
+ }
+ else
+ {
+ /* Otherwise, we have to create a variable sized fragment and
+ resolve things later. */
+
+ frag_var (rs_leb128, sizeof_uleb128 (~(valueT) 0), 0, sign,
+ make_expr_symbol (exp), 0, (char *) NULL);
+ }
+}
+
+/* Parse the .sleb128 and .uleb128 pseudos. */
+
+void
+s_leb128 (sign)
+ int sign;
+{
+ expressionS exp;
+
+ do
+ {
+ expression (&exp);
+ emit_leb128_expr (&exp, sign);
+ }
+ while (*input_line_pointer++ == ',');
+
+ input_line_pointer--;
+ demand_empty_rest_of_line ();
+}
+\f
+/* We read 0 or more ',' separated, double-quoted strings.
+ Caller should have checked need_pass_2 is FALSE because we don't
+ check it. */
-void
-stringer (append_zero) /* Worker to do .ascii etc statements. */
- /* Checks end-of-line. */
- register int append_zero; /* 0: don't append '\0', else 1 */
+void
+stringer (append_zero) /* Worker to do .ascii etc statements. */
+ /* Checks end-of-line. */
+ register int append_zero; /* 0: don't append '\0', else 1. */
{
register unsigned int c;
+ char *start;
+
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
- /*
- * The following awkward logic is to parse ZERO or more strings,
- * comma seperated. Recall a string expression includes spaces
- * before the opening '\"' and spaces after the closing '\"'.
- * We fake a leading ',' if there is (supposed to be)
- * a 1st, expression. We keep demanding expressions for each
- * ','.
- */
+ /* The following awkward logic is to parse ZERO or more strings,
+ comma separated. Recall a string expression includes spaces
+ before the opening '\"' and spaces after the closing '\"'.
+ We fake a leading ',' if there is (supposed to be)
+ a 1st, expression. We keep demanding expressions for each ','. */
if (is_it_end_of_statement ())
{
- c = 0; /* Skip loop. */
- ++input_line_pointer; /* Compensate for end of loop. */
+ c = 0; /* Skip loop. */
+ ++input_line_pointer; /* Compensate for end of loop. */
}
else
{
- c = ','; /* Do loop. */
+ c = ','; /* Do loop. */
+ }
+ /* If we have been switched into the abs_section then we
+ will not have an obstack onto which we can hang strings. */
+ if (now_seg == absolute_section)
+ {
+ as_bad (_("strings must be placed into a section"));
+ c = 0;
+ ignore_rest_of_line ();
}
+
while (c == ',' || c == '<' || c == '"')
{
SKIP_WHITESPACE ();
switch (*input_line_pointer)
{
case '\"':
- ++input_line_pointer; /*->1st char of string. */
+ ++input_line_pointer; /*->1st char of string. */
+ start = input_line_pointer;
while (is_a_char (c = next_char_of_string ()))
{
FRAG_APPEND_1_CHAR (c);
FRAG_APPEND_1_CHAR (0);
}
know (input_line_pointer[-1] == '\"');
+
+#ifndef NO_LISTING
+#ifdef OBJ_ELF
+ /* In ELF, when gcc is emitting DWARF 1 debugging output, it
+ will emit .string with a filename in the .debug section
+ after a sequence of constants. See the comment in
+ emit_expr for the sequence. emit_expr will set
+ dwarf_file_string to non-zero if this string might be a
+ source file name. */
+ if (strcmp (segment_name (now_seg), ".debug") != 0)
+ dwarf_file_string = 0;
+ else if (dwarf_file_string)
+ {
+ c = input_line_pointer[-1];
+ input_line_pointer[-1] = '\0';
+ listing_source_file (start);
+ input_line_pointer[-1] = c;
+ }
+#endif
+#endif
+
break;
case '<':
input_line_pointer++;
FRAG_APPEND_1_CHAR (c);
if (*input_line_pointer != '>')
{
- as_bad ("Expected <nn>");
+ as_bad (_("expected <nn>"));
}
input_line_pointer++;
break;
/* FIXME-SOMEDAY: I had trouble here on characters with the
high bits set. We'll probably also have trouble with
multibyte chars, wide chars, etc. Also be careful about
- returning values bigger than 1 byte. xoxorich. */
+ returning values bigger than 1 byte. xoxorich. */
-unsigned int
+unsigned int
next_char_of_string ()
{
register unsigned int c;
c = NOT_A_CHAR;
break;
+ case '\n':
+ as_warn (_("unterminated string; newline inserted"));
+ bump_line_counters ();
+ break;
+
+#ifndef NO_STRING_ESCAPES
case '\\':
switch (c = *input_line_pointer++)
{
c = '\t';
break;
-#ifdef BACKSLASH_V
case 'v':
c = '\013';
break;
-#endif
case '\\':
case '"':
- break; /* As itself. */
+ break; /* As itself. */
case '0':
case '1':
case '9':
{
long number;
+ int i;
- for (number = 0; isdigit (c); c = *input_line_pointer++)
+ for (i = 0, number = 0;
+ ISDIGIT (c) && i < 3;
+ c = *input_line_pointer++, i++)
{
number = number * 8 + c - '0';
}
+
c = number & 0xff;
}
--input_line_pointer;
break;
+ case 'x':
+ case 'X':
+ {
+ long number;
+
+ number = 0;
+ c = *input_line_pointer++;
+ while (ISXDIGIT (c))
+ {
+ if (ISDIGIT (c))
+ number = number * 16 + c - '0';
+ else if (ISUPPER (c))
+ number = number * 16 + c - 'A' + 10;
+ else
+ number = number * 16 + c - 'a' + 10;
+ c = *input_line_pointer++;
+ }
+ c = number & 0xff;
+ --input_line_pointer;
+ }
+ break;
+
case '\n':
- /* To be compatible with BSD 4.2 as: give the luser a linefeed!! */
- as_warn ("Unterminated string: Newline inserted.");
+ /* To be compatible with BSD 4.2 as: give the luser a linefeed!! */
+ as_warn (_("unterminated string; newline inserted"));
c = '\n';
+ bump_line_counters ();
break;
default:
#ifdef ONLY_STANDARD_ESCAPES
- as_bad ("Bad escaped character in string, '?' assumed");
+ as_bad (_("bad escaped character in string"));
c = '?';
#endif /* ONLY_STANDARD_ESCAPES */
break;
- } /* switch on escaped char */
+ }
break;
+#endif /* ! defined (NO_STRING_ESCAPES) */
default:
break;
- } /* switch on char */
+ }
return (c);
-} /* next_char_of_string() */
+}
\f
static segT
get_segmented_expression (expP)
|| expP->X_op == O_absent
|| expP->X_op == O_big)
{
- as_bad ("expected address expression; zero assumed");
+ as_bad (_("expected address expression"));
expP->X_op = O_constant;
expP->X_add_number = 0;
retval = absolute_section;
return retval;
}
-static segT
+static segT
get_known_segmented_expression (expP)
register expressionS *expP;
{
expression. */
if (expP->X_add_symbol != NULL
&& S_GET_SEGMENT (expP->X_add_symbol) != expr_section)
- as_warn ("symbol \"%s\" undefined; zero assumed",
+ as_warn (_("symbol \"%s\" undefined; zero assumed"),
S_GET_NAME (expP->X_add_symbol));
else
- as_warn ("some symbol undefined; zero assumed");
+ as_warn (_("some symbol undefined; zero assumed"));
retval = absolute_section;
expP->X_op = O_constant;
expP->X_add_number = 0;
}
know (retval == absolute_section || SEG_NORMAL (retval));
return (retval);
-} /* get_known_segmented_expression() */
+}
+
+offsetT
+get_absolute_expr (exp)
+ expressionS *exp;
+{
+ expression (exp);
+ if (exp->X_op != O_constant)
+ {
+ if (exp->X_op != O_absent)
+ as_bad (_("bad or irreducible absolute expression"));
+ exp->X_add_number = 0;
+ }
+ return exp->X_add_number;
+}
offsetT
get_absolute_expression ()
{
expressionS exp;
- expression (&exp);
- if (exp.X_op != O_constant)
- {
- if (exp.X_op != O_absent)
- as_bad ("bad absolute expression; zero assumed");
- exp.X_add_number = 0;
- }
- return exp.X_add_number;
+ return get_absolute_expr (&exp);
}
-char /* return terminator */
+char /* Return terminator. */
get_absolute_expression_and_terminator (val_pointer)
- long *val_pointer; /* return value of expression */
+ long *val_pointer; /* Return value of expression. */
{
/* FIXME: val_pointer should probably be offsetT *. */
*val_pointer = (long) get_absolute_expression ();
return (*input_line_pointer++);
}
\f
-/*
- * demand_copy_C_string()
- *
- * Like demand_copy_string, but return NULL if the string contains any '\0's.
- * Give a warning if that happens.
- */
+/* Like demand_copy_string, but return NULL if the string contains any '\0's.
+ Give a warning if that happens. */
+
char *
demand_copy_C_string (len_pointer)
int *len_pointer;
{
register int len;
- for (len = *len_pointer;
- len > 0;
- len--)
+ for (len = *len_pointer; len > 0; len--)
{
if (*s == 0)
{
s = 0;
len = 1;
*len_pointer = 0;
- as_bad ("This string may not contain \'\\0\'");
+ as_bad (_("this string may not contain \'\\0\'"));
}
}
}
- return (s);
+
+ return s;
}
\f
-/*
- * demand_copy_string()
- *
- * Demand string, but return a safe (=private) copy of the string.
- * Return NULL if we can't read a string here.
- */
-static char *
+/* Demand string, but return a safe (=private) copy of the string.
+ Return NULL if we can't read a string here. */
+
+char *
demand_copy_string (lenP)
int *lenP;
{
SKIP_WHITESPACE ();
if (*input_line_pointer == '\"')
{
- input_line_pointer++; /* Skip opening quote. */
+ input_line_pointer++; /* Skip opening quote. */
while (is_a_char (c = next_char_of_string ()))
{
obstack_1grow (¬es, c);
len++;
}
- /* JF this next line is so demand_copy_C_string will return a null
- termanated string. */
+ /* JF this next line is so demand_copy_C_string will return a
+ null terminated string. */
obstack_1grow (¬es, '\0');
retval = obstack_finish (¬es);
}
else
{
- as_warn ("Missing string");
+ as_warn (_("missing string"));
retval = NULL;
ignore_rest_of_line ();
}
*lenP = len;
return (retval);
-} /* demand_copy_string() */
+}
\f
-/*
- * is_it_end_of_statement()
- *
- * In: Input_line_pointer->next character.
- *
- * Do: Skip input_line_pointer over all whitespace.
- *
- * Out: 1 if input_line_pointer->end-of-line.
-*/
-int
+/* In: Input_line_pointer->next character.
+
+ Do: Skip input_line_pointer over all whitespace.
+
+ Out: 1 if input_line_pointer->end-of-line. */
+
+int
is_it_end_of_statement ()
{
SKIP_WHITESPACE ();
return (is_end_of_line[(unsigned char) *input_line_pointer]);
-} /* is_it_end_of_statement() */
+}
-void
-equals (sym_name)
+void
+equals (sym_name, reassign)
char *sym_name;
+ int reassign;
{
- register symbolS *symbolP; /* symbol we are working with */
+ register symbolS *symbolP; /* Symbol we are working with. */
+ char *stop = NULL;
+ char stopc;
input_line_pointer++;
if (*input_line_pointer == '=')
while (*input_line_pointer == ' ' || *input_line_pointer == '\t')
input_line_pointer++;
+ if (flag_mri)
+ stop = mri_comment_field (&stopc);
+
if (sym_name[0] == '.' && sym_name[1] == '\0')
{
- /* Turn '. = mumble' into a .org mumble */
+ /* Turn '. = mumble' into a .org mumble. */
register segT segment;
expressionS exp;
- register char *p;
segment = get_known_segmented_expression (&exp);
if (!need_pass_2)
- {
- if (segment != now_seg && segment != absolute_section)
- as_warn ("Illegal segment \"%s\". Segment \"%s\" assumed.",
- segment_name (segment),
- segment_name (now_seg));
- p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp.X_add_symbol,
- exp.X_add_number, (char *) 0);
- *p = 0;
- } /* if (ok to make frag) */
+ do_org (segment, &exp, 0);
}
else
{
+#ifdef OBJ_COFF
+ int local;
+
+ symbolP = symbol_find (sym_name);
+ local = symbolP == NULL;
+ if (local)
+#endif /* OBJ_COFF */
symbolP = symbol_find_or_make (sym_name);
+ /* Permit register names to be redefined. */
+ if (!reassign
+ && S_IS_DEFINED (symbolP)
+ && S_GET_SEGMENT (symbolP) != reg_section)
+ as_bad (_("symbol `%s' is already defined"), S_GET_NAME (symbolP));
+
+#ifdef OBJ_COFF
+ /* "set" symbols are local unless otherwise specified. */
+ if (local)
+ SF_SET_LOCAL (symbolP);
+#endif /* OBJ_COFF */
+
pseudo_set (symbolP);
}
-} /* equals() */
-/* .include -- include a file at this point. */
+ if (flag_mri)
+ {
+ /* Check garbage after the expression. */
+ ignore_rest_of_line ();
+ mri_comment_end (stop, stopc);
+ }
+}
+
+/* .incbin -- include a file verbatim at the current location. */
+
+void
+s_incbin (x)
+ int x ATTRIBUTE_UNUSED;
+{
+ FILE * binfile;
+ char * path;
+ char * filename;
+ char * binfrag;
+ long skip = 0;
+ long count = 0;
+ long bytes;
+ int len;
+
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
+ SKIP_WHITESPACE ();
+ filename = demand_copy_string (& len);
+ if (filename == NULL)
+ return;
+
+ SKIP_WHITESPACE ();
+
+ /* Look for optional skip and count. */
+ if (* input_line_pointer == ',')
+ {
+ ++ input_line_pointer;
+ skip = get_absolute_expression ();
+
+ SKIP_WHITESPACE ();
+
+ if (* input_line_pointer == ',')
+ {
+ ++ input_line_pointer;
+
+ count = get_absolute_expression ();
+ if (count == 0)
+ as_warn (_(".incbin count zero, ignoring `%s'"), filename);
+
+ SKIP_WHITESPACE ();
+ }
+ }
+
+ demand_empty_rest_of_line ();
+
+ /* Try opening absolute path first, then try include dirs. */
+ binfile = fopen (filename, FOPEN_RB);
+ if (binfile == NULL)
+ {
+ int i;
+
+ path = xmalloc ((unsigned long) len + include_dir_maxlen + 5);
+
+ for (i = 0; i < include_dir_count; i++)
+ {
+ sprintf (path, "%s/%s", include_dirs[i], filename);
+
+ binfile = fopen (path, FOPEN_RB);
+ if (binfile != NULL)
+ break;
+ }
+
+ if (binfile == NULL)
+ as_bad (_("file not found: %s"), filename);
+ }
+ else
+ path = xstrdup (filename);
+
+ if (binfile)
+ {
+ long file_len;
+
+ register_dependency (path);
+
+ /* Compute the length of the file. */
+ if (fseek (binfile, 0, SEEK_END) != 0)
+ {
+ as_bad (_("seek to end of .incbin file failed `%s'"), path);
+ goto done;
+ }
+ file_len = ftell (binfile);
+
+ /* If a count was not specified use the size of the file. */
+ if (count == 0)
+ count = file_len;
+
+ if (skip + count > file_len)
+ {
+ as_bad (_("skip (%ld) + count (%ld) larger than file size (%ld)"),
+ skip, count, file_len);
+ goto done;
+ }
+
+ if (fseek (binfile, skip, SEEK_SET) != 0)
+ {
+ as_bad (_("could not skip to %ld in file `%s'"), skip, path);
+ goto done;
+ }
+
+ /* Allocate frag space and store file contents in it. */
+ binfrag = frag_more (count);
+
+ bytes = fread (binfrag, 1, count, binfile);
+ if (bytes < count)
+ as_warn (_("truncated file `%s', %ld of %ld bytes read"),
+ path, bytes, count);
+ }
+done:
+ if (binfile != NULL)
+ fclose (binfile);
+ if (path)
+ free (path);
+}
+
+/* .include -- include a file at this point. */
-/* ARGSUSED */
-void
+void
s_include (arg)
- int arg;
+ int arg ATTRIBUTE_UNUSED;
{
- char *newbuf;
char *filename;
int i;
FILE *try;
char *path;
- filename = demand_copy_string (&i);
+ if (!flag_m68k_mri)
+ {
+ filename = demand_copy_string (&i);
+ if (filename == NULL)
+ {
+ /* demand_copy_string has already printed an error and
+ called ignore_rest_of_line. */
+ return;
+ }
+ }
+ else
+ {
+ SKIP_WHITESPACE ();
+ i = 0;
+ while (!is_end_of_line[(unsigned char) *input_line_pointer]
+ && *input_line_pointer != ' '
+ && *input_line_pointer != '\t')
+ {
+ obstack_1grow (¬es, *input_line_pointer);
+ ++input_line_pointer;
+ ++i;
+ }
+
+ obstack_1grow (¬es, '\0');
+ filename = obstack_finish (¬es);
+ while (!is_end_of_line[(unsigned char) *input_line_pointer])
+ ++input_line_pointer;
+ }
+
demand_empty_rest_of_line ();
path = xmalloc ((unsigned long) i + include_dir_maxlen + 5 /* slop */ );
+
for (i = 0; i < include_dir_count; i++)
{
strcpy (path, include_dirs[i]);
strcat (path, "/");
strcat (path, filename);
- if (0 != (try = fopen (path, "r")))
+ if (0 != (try = fopen (path, FOPEN_RT)))
{
fclose (try);
goto gotit;
}
}
+
free (path);
path = filename;
gotit:
- /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
- newbuf = input_scrub_include_file (path, input_line_pointer);
- buffer_limit = input_scrub_next_buffer (&input_line_pointer);
-} /* s_include() */
+ /* malloc Storage leak when file is found on path. FIXME-SOMEDAY. */
+ register_dependency (path);
+ input_scrub_insert_file (path);
+}
-void
+void
add_include_dir (path)
char *path;
{
if (include_dir_count == 0)
{
include_dirs = (char **) xmalloc (2 * sizeof (*include_dirs));
- include_dirs[0] = "."; /* Current dir */
+ include_dirs[0] = "."; /* Current dir. */
include_dir_count = 2;
}
else
{
include_dir_count++;
- include_dirs = (char **) realloc (include_dirs,
- include_dir_count * sizeof (*include_dirs));
+ include_dirs =
+ (char **) realloc (include_dirs,
+ include_dir_count * sizeof (*include_dirs));
}
- include_dirs[include_dir_count - 1] = path; /* New one */
+ include_dirs[include_dir_count - 1] = path; /* New one. */
i = strlen (path);
if (i > include_dir_maxlen)
include_dir_maxlen = i;
-} /* add_include_dir() */
-
-void
-s_ignore (arg)
- int arg;
-{
- while (!is_end_of_line[(unsigned char) *input_line_pointer])
- {
- ++input_line_pointer;
- }
- ++input_line_pointer;
-
- return;
-} /* s_ignore() */
+}
\f
-/*
- * Handle .stabX directives, which used to be open-coded.
- * So much creeping featurism overloaded the semantics that we decided
- * to put all .stabX thinking in one place. Here.
- *
- * We try to make any .stabX directive legal. Other people's AS will often
- * do assembly-time consistency checks: eg assigning meaning to n_type bits
- * and "protecting" you from setting them to certain values. (They also zero
- * certain bits before emitting symbols. Tut tut.)
- *
- * If an expression is not absolute we either gripe or use the relocation
- * information. Other people's assemblers silently forget information they
- * don't need and invent information they need that you didn't supply.
- */
-
-/*
- * Build a string dictionary entry for a .stabX symbol.
- * The symbol is added to the .<secname>str section.
- */
-
-#ifdef SEPARATE_STAB_SECTIONS
-
-unsigned int
-get_stab_string_offset (string, secname)
- const char *string;
- const char *secname;
-{
- unsigned int length;
- unsigned int retval;
-
- retval = 0;
- length = strlen (string);
- if (length > 0)
- { /* Ordinary case. */
- segT save_seg;
- subsegT save_subseg;
- char *newsecname;
- segT seg;
- int aligned;
- char *p;
-
- save_seg = now_seg;
- save_subseg = now_subseg;
-
- /* Create the stab string section. */
- newsecname = xmalloc ((unsigned long) (strlen (secname) + 4));
- strcpy (newsecname, secname);
- strcat (newsecname, "str");
-
- seg = subseg_new (newsecname, 0);
-
- retval = seg_info (seg)->stabu.stab_string_size;
- if (retval > 0)
- free (newsecname);
- else
- {
- /* Make sure the first string is empty. */
- p = frag_more (1);
- *p = 0;
- retval = seg_info (seg)->stabu.stab_string_size = 1;
-#ifdef BFD_ASSEMBLER
- bfd_set_section_flags (stdoutput, seg, SEC_READONLY);
-#else
- free (newsecname);
-#endif
- }
+/* Output debugging information to denote the source file. */
- p = frag_more (length + 1);
- strcpy (p, string);
+static void
+generate_file_debug ()
+{
+ if (debug_type == DEBUG_STABS)
+ stabs_generate_asm_file ();
+}
- seg_info (seg)->stabu.stab_string_size += length + 1;
+/* Output line number debugging information for the current source line. */
- subseg_set (save_seg, save_subseg);
+void
+generate_lineno_debug ()
+{
+ switch (debug_type)
+ {
+ case DEBUG_UNSPECIFIED:
+ case DEBUG_NONE:
+ case DEBUG_DWARF:
+ break;
+ case DEBUG_STABS:
+ stabs_generate_asm_lineno ();
+ break;
+ case DEBUG_ECOFF:
+ ecoff_generate_asm_lineno ();
+ break;
+ case DEBUG_DWARF2:
+ /* ??? We could here indicate to dwarf2dbg.c that something
+ has changed. However, since there is additional backend
+ support that is required (calling dwarf2_emit_insn), we
+ let dwarf2dbg.c call as_where on its own. */
+ break;
}
-
- return retval;
}
-#endif /* SEPARATE_STAB_SECTIONS */
-
-/* This can handle different kinds of stabs (s,n,d) and different
- kinds of stab sections. */
+/* Output debugging information to mark a function entry point or end point.
+ END_P is zero for .func, and non-zero for .endfunc. */
-static void
-s_stab_generic (what, secname)
- int what;
- char *secname;
+void
+s_func (end_p)
+ int end_p;
{
- long longint;
- char *string;
- int type;
- int other;
- int desc;
+ do_s_func (end_p, NULL);
+}
- /* The general format is:
- .stabs "STRING",TYPE,OTHER,DESC,VALUE
- .stabn TYPE,OTHER,DESC,VALUE
- .stabd TYPE,OTHER,DESC
- At this point input_line_pointer points after the pseudo-op and
- any trailing whitespace. The argument what is one of 's', 'n' or
- 'd' indicating which type of .stab this is. */
+/* Subroutine of s_func so targets can choose a different default prefix.
+ If DEFAULT_PREFIX is NULL, use the target's "leading char". */
- if (what != 's')
- string = "";
- else
- {
- int length;
+void
+do_s_func (end_p, default_prefix)
+ int end_p;
+ const char *default_prefix;
+{
+ /* Record the current function so that we can issue an error message for
+ misplaced .func,.endfunc, and also so that .endfunc needs no
+ arguments. */
+ static char *current_name;
+ static char *current_label;
- string = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- input_line_pointer++;
- else
+ if (end_p)
+ {
+ if (current_name == NULL)
{
- as_warn (".stabs: Missing comma");
+ as_bad (_("missing .func"));
ignore_rest_of_line ();
return;
}
- }
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_warn (".stab%c: Missing comma", what);
- ignore_rest_of_line ();
- return;
- }
- type = longint;
+ if (debug_type == DEBUG_STABS)
+ stabs_generate_asm_endfunc (current_name, current_label);
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_warn (".stab%c: Missing comma", what);
- ignore_rest_of_line ();
- return;
+ current_name = current_label = NULL;
}
- other = longint;
-
- desc = get_absolute_expression ();
- if (what == 's' || what == 'n')
+ else /* ! end_p */
{
- if (*input_line_pointer != ',')
+ char *name, *label;
+ char delim1, delim2;
+
+ if (current_name != NULL)
{
- as_warn (".stab%c: Missing comma", what);
+ as_bad (_(".endfunc missing for previous .func"));
ignore_rest_of_line ();
return;
}
- input_line_pointer++;
- SKIP_WHITESPACE ();
- }
-
- /* We have not gathered the type, other, and desc information. For
- .stabs or .stabn, input_line_pointer is now pointing at the
- value. */
-#ifdef SEPARATE_STAB_SECTIONS
- /* Output the stab information in a separate section. This is used
- at least for COFF and ELF. */
- {
- segT saved_seg = now_seg;
- subsegT saved_subseg = now_subseg;
- fragS *saved_frag = frag_now;
- valueT dot;
- segT seg;
- unsigned int stroff;
- char *p;
-
- dot = frag_now_fix ();
-
- seg = subseg_new (secname, 0);
-
- if (! seg_info (seg)->hadone)
- {
+ name = input_line_pointer;
+ delim1 = get_symbol_end ();
+ name = xstrdup (name);
+ *input_line_pointer = delim1;
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ {
+ if (default_prefix)
+ asprintf (&label, "%s%s", default_prefix, name);
+ else
+ {
+ char leading_char = 0;
#ifdef BFD_ASSEMBLER
- bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_RELOC);
+ leading_char = bfd_get_symbol_leading_char (stdoutput);
#endif
-#ifdef INIT_STAB_SECTION
- INIT_STAB_SECTION (seg);
-#endif
- seg_info (seg)->hadone = 1;
- }
-
- stroff = get_stab_string_offset (string, secname);
-
- /* At least for now, stabs in a special stab section are always
- output as 12 byte blocks of information. */
- p = frag_more (8);
- md_number_to_chars (p, (valueT) stroff, 4);
- md_number_to_chars (p + 4, (valueT) type, 1);
- md_number_to_chars (p + 5, (valueT) other, 1);
- md_number_to_chars (p + 6, (valueT) desc, 2);
-
- if (what == 's' || what == 'n')
- {
- /* Pick up the value from the input line. */
- cons (4);
- input_line_pointer--;
- }
- else
- {
- const char *fake;
- symbolS *symbol;
- expressionS exp;
-
- /* Arrange for a value representing the current location. */
-#ifdef DOT_LABEL_PREFIX
- fake = ".L0\001";
-#else
- fake = "L0\001";
-#endif
- symbol = symbol_new (fake, saved_seg, dot, saved_frag);
-
- exp.X_op = O_symbol;
- exp.X_add_symbol = symbol;
- exp.X_add_number = 0;
-
- emit_expr (&exp, 4);
- }
-
-#ifdef OBJ_PROCESS_STAB
- OBJ_PROCESS_STAB (seg, string, stroff, type, other, desc);
-#endif
-
- subseg_set (saved_seg, saved_subseg);
- }
-#else /* ! SEPARATE_STAB_SECTIONS */
-#ifdef OBJ_PROCESS_STAB
- OBJ_PROCESS_STAB (what, string, type, other, desc);
-#else
- /* Put the stab information in the symbol table. */
- {
- symbolS *symbol;
-
- symbol = symbol_new (string, undefined_section, 0,
- (struct frag *) NULL);
- if (what == 's' || what == 'n')
- {
- /* Pick up the value from the input line. */
- symbol->sy_frag = &zero_address_frag;
- pseudo_set (symbol);
- }
- else
- {
- /* .stabd sets the name to NULL. Why? */
- S_SET_NAME (symbol, NULL);
- symbol->sy_frag = frag_now;
- S_SET_VALUE (symbol, (valueT) frag_now_fix ());
- }
-
- S_SET_TYPE (symbol, type);
- S_SET_OTHER (symbol, other);
- S_SET_DESC (symbol, desc);
- }
-#endif /* ! OBJ_PROCESS_STAB */
-#endif /* ! SEPARATE_STAB_SECTIONS */
-
-#ifndef NO_LISTING
- if (listing)
- {
- switch (type)
+ /* Missing entry point, use function's name with the leading
+ char prepended. */
+ if (leading_char)
+ asprintf (&label, "%c%s", leading_char, name);
+ else
+ label = name;
+ }
+ }
+ else
{
- case N_SLINE:
- listing_source_line ((unsigned int) desc);
- break;
- case N_SO:
- case N_SOL:
- listing_source_file (string);
- break;
+ ++input_line_pointer;
+ SKIP_WHITESPACE ();
+ label = input_line_pointer;
+ delim2 = get_symbol_end ();
+ label = xstrdup (label);
+ *input_line_pointer = delim2;
}
+
+ if (debug_type == DEBUG_STABS)
+ stabs_generate_asm_func (name, label);
+
+ current_name = name;
+ current_label = label;
}
-#endif /* ! NO_LISTING */
demand_empty_rest_of_line ();
}
-
-/* Regular stab directive. */
-
+\f
void
-s_stab (what)
- int what;
+s_ignore (arg)
+ int arg ATTRIBUTE_UNUSED;
{
- s_stab_generic (what, ".stab");
+ while (!is_end_of_line[(unsigned char) *input_line_pointer])
+ {
+ ++input_line_pointer;
+ }
+ ++input_line_pointer;
}
-/* "Extended stabs", used in Solaris only now. */
-
void
-s_xstab (what)
- int what;
+read_print_statistics (file)
+ FILE *file;
{
- int length;
- char *secname;
-
- secname = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- input_line_pointer++;
- else
- {
- as_bad ("comma missing in .xstabs");
- ignore_rest_of_line ();
- return;
- }
- s_stab_generic (what, secname);
+ hash_print_statistics (file, "pseudo-op table", po_hash);
}
-#ifdef S_SET_DESC
+/* Inserts the given line into the input stream.
-/* Frob invented at RMS' request. Set the n_desc of a symbol. */
+ This call avoids macro/conditionals nesting checking, since the contents of
+ the line are assumed to replace the contents of a line already scanned.
-void
-s_desc (ignore)
- int ignore;
-{
- char *name;
- char c;
- char *p;
- symbolS *symbolP;
- int temp;
+ An appropriate use of this function would be substition of input lines when
+ called by md_start_line_hook(). The given line is assumed to already be
+ properly scrubbed. */
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- *p = 0;
- as_bad ("Expected comma after name \"%s\"", name);
- *p = c;
- ignore_rest_of_line ();
- }
- else
- {
- input_line_pointer++;
- temp = get_absolute_expression ();
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
- S_SET_DESC (symbolP, temp);
- }
- demand_empty_rest_of_line ();
-} /* s_desc() */
+void
+input_scrub_insert_line (line)
+ const char *line;
+{
+ sb newline;
+ sb_new (&newline);
+ sb_add_string (&newline, line);
+ input_scrub_include_sb (&newline, input_line_pointer, 0);
+ sb_kill (&newline);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
-#endif /* defined (S_SET_DESC) */
+/* Insert a file into the input stream; the path must resolve to an actual
+ file; no include path searching or dependency registering is performed. */
-/* end of read.c */
+void
+input_scrub_insert_file (path)
+ char *path;
+{
+ input_scrub_include_file (path, input_line_pointer);
+ buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+}
projects / deliverable / binutils-gdb.git / blobdiff