/* read.c - read a source file -
- Copyright (C) 1986, 87, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
- 2000 Free Software Foundation, Inc.
+ Copyright 1986, 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
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, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+02111-1307, USA. */
-#if 0
-/* If your chars aren't 8 bits, you will change this a bit.
+/* If your chars aren't 8 bits, you will change this a bit (eg. to 0xFF).
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)
-#endif
/* This is the largest known floating point format (for now). It will
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.
+/* Routines that read assembler source text to build spaghetti 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"
#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
/* Set by the object-format or the target. */
#ifndef TC_IMPLICIT_LCOMM_ALIGNMENT
-#define TC_IMPLICIT_LCOMM_ALIGNMENT(SIZE, P2VAR) \
+#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; \
+ { \
+ if ((SIZE) >= 8) \
+ (P2VAR) = 3; \
+ else if ((SIZE) >= 4) \
+ (P2VAR) = 2; \
+ else if ((SIZE) >= 2) \
+ (P2VAR) = 1; \
+ else \
+ (P2VAR) = 0; \
} \
while (0)
#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
-#endif
-
char *input_line_pointer; /*->next char of source file to parse. */
#if BITS_PER_CHAR != 8
#endif
/* Used by is_... macros. our ctype[]. */
-char lex_type[256] =
-{
+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, LEX_HASH, LEX_DOLLAR, LEX_PCT, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, /* _!"#$%&'()*+,-./ */
/* In: a character.
Out: 1 if this character ends a line. */
-char is_end_of_line[256] =
-{
+char is_end_of_line[256] = {
#ifdef CR_EOL
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, /* @abcdefghijklmno */
#else
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* */
};
+#ifndef TC_CASE_SENSITIVE
+char original_case_string[128];
+#endif
+
/* Functions private to this file. */
static char *buffer; /* 1st char of each buffer of lines is here. */
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. */
/* Table of pointers to directories to search for .include's. */
#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));
+static void do_align (int, char *, int, int);
+static void s_align (int, int);
+static void s_altmacro (int);
+static void s_bad_end (int);
+static int hex_float (int, char *);
+static segT get_known_segmented_expression (expressionS * expP);
+static void pobegin (void);
+static int get_line_sb (sb *);
+static void generate_file_debug (void);
\f
void
-read_begin ()
+read_begin (void)
{
const char *p;
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},
+ {"altmacro", s_altmacro, 1},
{"ascii", stringer, 0},
{"asciz", stringer, 1},
{"balign", s_align_bytes, 0},
{"endc", s_endif, 0},
{"endfunc", s_func, 1},
{"endif", s_endif, 0},
+ {"endm", s_bad_end, 0},
+ {"endr", s_bad_end, 1},
/* endef */
{"equ", s_set, 0},
{"equiv", s_set, 1},
{"err", s_err, 0},
+ {"error", s_errwarn, 1},
{"exitm", s_mexit, 0},
/* extend */
{"extern", s_ignore, 0}, /* We treat all undef as ext. */
{"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},
{"mri", s_mri, 0},
{".mri", s_mri, 0}, /* Special case so .mri works in MRI mode. */
{"name", s_ignore, 0},
+ {"noaltmacro", s_altmacro, 0},
{"noformat", s_ignore, 0},
{"nolist", listing_list, 0}, /* Turn listing off. */
{"nopage", listing_nopage, 0},
{"xdef", s_globl, 0},
{"xref", s_ignore, 0},
{"xstabs", s_xstab, 's'},
+ {"warning", s_errwarn, 0},
{"word", cons, 2},
{"zero", s_space, 0},
{NULL, NULL, 0} /* End sentinel. */
static const char *pop_table_name;
void
-pop_insert (table)
- const pseudo_typeS *table;
+pop_insert (const pseudo_typeS *table)
{
const char *errtxt;
const pseudo_typeS *pop;
#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 ()
+pobegin (void)
{
po_hash = hash_new ();
/* 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() \
static char *scrub_string_end;
static int
-scrub_from_string (buf, buflen)
- char *buf;
- int buflen;
+scrub_from_string (char *buf, int buflen)
{
int 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;
+read_a_source_file (char *name)
{
register char c;
register char *s; /* String of symbol, '\0' appended. */
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??? */
+
while (input_line_pointer < buffer_limit)
{
/* We have more of this buffer to parse. */
}
/* In MRI mode, we need to handle the MACRO
- pseudo-op specially: we don't want to put the
- symbol in the symbol table. */
+ 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)
+ && TC_START_LABEL_WITHOUT_COLON(c,
+ input_line_pointer)
#endif
- )
+ )
line_label = colon (line_start);
else
line_label = symbol_create (line_start,
}
}
- /* We are at the begining of a line, or similar place.
+ /* We are at the beginning 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.
int len;
/* Find the end of the current expanded macro line. */
- for (s = input_line_pointer - 1; *s ; ++s)
+ 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);
+ len = s - (input_line_pointer - 1);
copy = (char *) xmalloc (len + macro_nest + 2);
memset (copy, '>', macro_nest);
copy[macro_nest] = ' ';
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. */
+ 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))
{
if (flag_m68k_mri)
/* 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'))
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 ();
}
/* Expect pseudo-op or machine instruction. */
pop = NULL;
-#define IGNORE_OPCODE_CASE
-#ifdef IGNORE_OPCODE_CASE
+#ifndef TC_CASE_SENSITIVE
{
char *s2 = s;
+
+ strncpy (original_case_string, s2, sizeof (original_case_string));
+ original_case_string[sizeof (original_case_string) - 1] = 0;
+
while (*s2)
{
- if (isupper ((unsigned char) *s2))
- *s2 = tolower (*s2);
+ *s2 = TOLOWER (*s2);
s2++;
}
}
if (NO_PSEUDO_DOT || flag_m68k_mri)
{
/* The MRI assembler and the m88k use pseudo-ops
- without a period. */
+ without a period. */
pop = (pseudo_typeS *) hash_find (po_hash, s);
if (pop != NULL && pop->poc_handler == NULL)
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 '.'. */
+
+ 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);
+ if (pop && !pop->poc_handler)
+ pop = NULL;
/* In MRI mode, we may need to insert an
- automatic alignment directive. What a hack
- this is. */
+ automatic alignment directive. What a hack
+ this is. */
if (mri_pending_align
&& (pop == NULL
|| !((pop->poc_handler == cons
{
do_align (1, (char *) NULL, 0, 0);
mri_pending_align = 0;
-
+
if (line_label != NULL)
{
symbol_set_frag (line_label, frag_now);
/* 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);
continue;
input_line_pointer++;
/* Input_line is restored.
- Input_line_pointer->1st non-blank char
- after pseudo-operation. */
+ Input_line_pointer->1st non-blank char
+ after pseudo-operation. */
(*pop->poc_handler) (pop->poc_val);
/* If that was .end, just get out now. */
const char *err;
macro_entry *macro;
- if (check_macro (s, &out, '\0', &err, ¯o))
+ if (check_macro (s, &out, &err, ¯o))
{
if (err != NULL)
as_bad ("%s", err);
if (is_end_of_line[(unsigned char) c])
continue;
- if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB)
- && isdigit ((unsigned char) c))
+ if ((LOCAL_LABELS_DOLLAR || LOCAL_LABELS_FB) && ISDIGIT (c))
{
/* local label ("4:") */
char *backup = input_line_pointer;
temp = c - '0';
/* Read the whole number. */
- while (isdigit ((unsigned char) *input_line_pointer))
+ while (ISDIGIT (*input_line_pointer))
{
temp = (temp * 10) + *input_line_pointer - '0';
++input_line_pointer;
if (c && strchr (line_comment_chars, c))
{ /* Its a comment. Better say APP or NO_APP. */
+ sb sbuf;
char *ends;
char *new_buf;
char *new_tmp;
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... */
+ guarantee it... */
tmp_len = buffer_limit - s;
tmp_buf = xmalloc (tmp_len + 1);
memcpy (tmp_buf, s, tmp_len);
if (size < space)
{
- new_tmp += size;
+ new_tmp[size] = 0;
break;
}
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;
}
if (tc_unrecognized_line (c))
continue;
#endif
- /* as_warn (_("Junk character %d."),c); Now done by ignore_rest. */
- input_line_pointer--; /* Report unknown char as ignored. */
- ignore_rest_of_line ();
+ input_line_pointer--;
+ /* Report unknown char as ignored. */
+ demand_empty_rest_of_line ();
}
#ifdef md_after_pass_hook
md_after_pass_hook ();
#endif
-
- if (old_buffer)
- {
- free (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;
- }
- }
}
quit:
#endif
}
+/* Convert O_constant expression EXP into the equivalent O_big representation.
+ Take the sign of the number from X_unsigned rather than X_add_number. */
+
+static void
+convert_to_bignum (expressionS *exp)
+{
+ valueT value;
+ unsigned int i;
+
+ value = exp->X_add_number;
+ for (i = 0; i < sizeof (exp->X_add_number) / CHARS_PER_LITTLENUM; i++)
+ {
+ generic_bignum[i] = value & LITTLENUM_MASK;
+ value >>= LITTLENUM_NUMBER_OF_BITS;
+ }
+ /* Add a sequence of sign bits if the top bit of X_add_number is not
+ the sign of the original value. */
+ if ((exp->X_add_number < 0) != !exp->X_unsigned)
+ generic_bignum[i++] = exp->X_unsigned ? 0 : LITTLENUM_MASK;
+ exp->X_op = O_big;
+ exp->X_add_number = i;
+}
+
/* 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
for the m68k MRI assembler. */
char *
-mri_comment_field (stopcp)
- char *stopcp;
+mri_comment_field (char *stopcp)
{
char *s;
#ifdef TC_M68K
#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;
+mri_comment_end (char *stop, int stopc)
{
know (flag_mri);
}
void
-s_abort (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_abort (int ignore ATTRIBUTE_UNUSED)
{
as_fatal (_(".abort detected. Abandoning ship."));
}
or 0 if there is no maximum. */
static void
-do_align (n, fill, len, max)
- int n;
- char *fill;
- int len;
- int max;
+do_align (int n, char *fill, int len, int max)
{
- char default_fill;
+ if (now_seg == absolute_section)
+ {
+ if (fill != NULL)
+ while (len-- > 0)
+ if (*fill++ != '\0')
+ {
+ as_warn (_("ignoring fill value in absolute section"));
+ break;
+ }
+ fill = NULL;
+ len = 0;
+ }
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
#ifdef md_do_align
md_do_align (n, fill, len, max, just_record_alignment);
#endif
- if (fill == NULL)
- {
- if (subseg_text_p (now_seg))
- default_fill = NOP_OPCODE;
- else
- default_fill = 0;
- fill = &default_fill;
- len = 1;
- }
-
/* Only make a frag if we HAVE to... */
if (n != 0 && !need_pass_2)
{
- if (len <= 1)
+ 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);
}
#ifdef md_do_align
- just_record_alignment:
+ just_record_alignment: ATTRIBUTE_UNUSED_LABEL
#endif
record_alignment (now_seg, n - OCTETS_PER_BYTE_POWER);
fill pattern. BYTES_P is non-zero if the alignment value should be
interpreted as the byte boundary, rather than the power of 2. */
+#ifdef BFD_ASSEMBLER
+#define ALIGN_LIMIT (stdoutput->arch_info->bits_per_address - 1)
+#else
+#define ALIGN_LIMIT 15
+#endif
+
static void
-s_align (arg, bytes_p)
- int arg;
- int bytes_p;
+s_align (int arg, int bytes_p)
{
- register unsigned int align;
+ unsigned int align_limit = ALIGN_LIMIT;
+ unsigned int align;
char *stop = NULL;
char stopc;
offsetT fill = 0;
for (i = 0; (align & 1) == 0; align >>= 1, ++i)
;
if (align != 1)
- as_bad (_("Alignment not a power of 2"));
-
+ as_bad (_("alignment not a power of 2"));
+
align = i;
}
}
- if (align > 15)
+ if (align > align_limit)
{
- align = 15;
- as_bad (_("Alignment too large: %u assumed"), align);
+ align = align_limit;
+ as_warn (_("alignment too large: %u assumed"), align);
}
if (*input_line_pointer != ',')
align to a 4 byte boundary. */
void
-s_align_bytes (arg)
- int arg;
+s_align_bytes (int arg)
{
s_align (arg, 1);
}
to a 2**4 boundary. */
void
-s_align_ptwo (arg)
- int arg;
+s_align_ptwo (int arg)
{
s_align (arg, 0);
}
+/* Switch in and out of alternate macro mode. */
+
void
-s_comm (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_altmacro (int on)
{
- register char *name;
- register char c;
- register char *p;
- offsetT temp;
- register symbolS *symbolP;
+ demand_empty_rest_of_line ();
+ macro_set_alternate (on);
+}
+
+symbolS *
+s_comm_internal (int param,
+ symbolS *(*comm_parse_extra) (int, symbolS *, addressT))
+{
+ char *name;
+ char c;
+ char *p;
+ offsetT temp, size;
+ symbolS *symbolP = NULL;
char *stop = NULL;
char stopc;
+ expressionS exp;
if (flag_mri)
stop = mri_comment_field (&stopc);
/* Just after name is now '\0'. */
p = input_line_pointer;
*p = c;
+
+ if (name == p)
+ {
+ as_bad (_("expected symbol name"));
+ discard_rest_of_line ();
+ goto out;
+ }
+
SKIP_WHITESPACE ();
-
- if (*input_line_pointer != ',')
+
+ /* Accept an optional comma after the name. The comma used to be
+ required, but Irix 5 cc does not generate it for .lcomm. */
+ if (*input_line_pointer == ',')
+ input_line_pointer++;
+
+ temp = get_absolute_expr (&exp);
+ size = temp;
+#ifdef BFD_ASSEMBLER
+ size &= ((offsetT) 2 << (stdoutput->arch_info->bits_per_address - 1)) - 1;
+#endif
+ if (exp.X_op == O_absent)
{
- as_bad (_("Expected comma after symbol-name: rest of line ignored."));
+ as_bad (_("missing size expression"));
ignore_rest_of_line ();
- if (flag_mri)
- mri_comment_end (stop, stopc);
- return;
+ goto out;
}
-
- input_line_pointer++; /* skip ',' */
-
- if ((temp = get_absolute_expression ()) < 0)
+ else if (temp != size || !exp.X_unsigned)
{
- as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
+ as_warn (_("size (%ld) out of range, ignored"), (long) temp);
ignore_rest_of_line ();
- if (flag_mri)
- mri_comment_end (stop, stopc);
- return;
+ goto out;
}
-
+
*p = 0;
symbolP = symbol_find_or_make (name);
- *p = c;
-
if (S_IS_DEFINED (symbolP) && !S_IS_COMMON (symbolP))
{
- as_bad (_("Ignoring attempt to re-define symbol `%s'."),
- S_GET_NAME (symbolP));
+ symbolP = NULL;
+ as_bad (_("symbol `%s' is already defined"), name);
+ *p = c;
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."),
- S_GET_NAME (symbolP),
- (long) S_GET_VALUE (symbolP),
- (long) temp);
+ goto out;
}
+
+ size = S_GET_VALUE (symbolP);
+ if (size == 0)
+ size = temp;
+ else if (size != temp)
+ as_warn (_("size of \"%s\" is already %ld; not changing to %ld"),
+ name, (long) size, (long) temp);
+
+ *p = c;
+ if (comm_parse_extra != NULL)
+ symbolP = (*comm_parse_extra) (param, symbolP, size);
else
{
- S_SET_VALUE (symbolP, (valueT) temp);
+ S_SET_VALUE (symbolP, (valueT) size);
S_SET_EXTERNAL (symbolP);
- }
#ifdef OBJ_VMS
- {
- 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);
+ {
+ extern int flag_one;
+ if (size == 0 || !flag_one)
+ S_GET_OTHER (symbolP) = const_flag;
+ }
+#endif
+ }
+ know (symbolP == NULL || symbolP->sy_frag == &zero_address_frag);
demand_empty_rest_of_line ();
-
+ out:
if (flag_mri)
mri_comment_end (stop, stopc);
-} /* s_comm() */
+ return symbolP;
+}
+
+void
+s_comm (int ignore)
+{
+ s_comm_internal (ignore, NULL);
+}
/* 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;
+s_mri_common (int small ATTRIBUTE_UNUSED)
{
char *name;
char c;
SKIP_WHITESPACE ();
name = input_line_pointer;
- if (!isdigit ((unsigned char) *name))
+ if (!ISDIGIT (*name))
c = get_symbol_end ();
else
{
{
++input_line_pointer;
}
- while (isdigit ((unsigned char) *input_line_pointer));
-
+ while (ISDIGIT (*input_line_pointer));
+
c = *input_line_pointer;
*input_line_pointer = '\0';
if (S_IS_DEFINED (sym) && !S_IS_COMMON (sym))
{
- as_bad (_("attempt to re-define symbol `%s'"), S_GET_NAME (sym));
+ as_bad (_("symbol `%s' is already defined"), S_GET_NAME (sym));
ignore_rest_of_line ();
mri_comment_end (stop, stopc);
return;
}
void
-s_data (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_data (int ignore ATTRIBUTE_UNUSED)
{
segT section;
register int temp;
.file. */
void
-s_app_file (appfile)
- int appfile;
+s_app_file_string (char *file, int appfile)
+{
+#ifdef LISTING
+ if (listing)
+ listing_source_file (file);
+#endif
+ register_dependency (file);
+#ifdef obj_app_file
+ obj_app_file (file, appfile);
+#endif
+}
+
+void
+s_app_file (int appfile)
{
register char *s;
int length;
= (!new_logical_line (s, appfile ? -2 : -1) && appfile);
/* In MRI mode, the preprocessor may have inserted an extraneous
- backquote. */
+ backquote. */
if (flag_m68k_mri
&& *input_line_pointer == '\''
&& is_end_of_line[(unsigned char) input_line_pointer[1]])
demand_empty_rest_of_line ();
if (!may_omit)
- {
-#ifdef LISTING
- if (listing)
- listing_source_file (s);
-#endif
- register_dependency (s);
-#ifdef obj_app_file
- obj_app_file (s);
-#endif
- }
+ s_app_file_string (s, appfile);
}
}
pseudo-ops. */
void
-s_app_line (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_app_line (int ignore ATTRIBUTE_UNUSED)
{
int 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."),
+ as_warn (_("line numbers must be positive; line number %d rejected"),
l + 1);
else
{
read_a_source_file. */
void
-s_end (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_end (int ignore ATTRIBUTE_UNUSED)
{
if (flag_mri)
{
/* The MRI assembler permits the start symbol to follow .end,
- but we don't support that. */
+ but we don't support that. */
SKIP_WHITESPACE ();
if (!is_end_of_line[(unsigned char) *input_line_pointer]
&& *input_line_pointer != '*'
/* Handle the .err pseudo-op. */
void
-s_err (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_err (int ignore ATTRIBUTE_UNUSED)
{
as_bad (_(".err encountered"));
demand_empty_rest_of_line ();
}
+/* Handle the .error and .warning pseudo-ops. */
+
+void
+s_errwarn (int err)
+{
+ int len;
+ /* The purpose for the conditional assignment is not to
+ internationalize the directive itself, but that we need a
+ self-contained message, one that can be passed like the
+ demand_copy_C_string return value, and with no assumption on the
+ location of the name of the directive within the message. */
+ char *msg
+ = (err ? _(".error directive invoked in source file")
+ : _(".warning directive invoked in source file"));
+
+ if (!is_it_end_of_statement ())
+ {
+ if (*input_line_pointer != '\"')
+ {
+ as_bad (_("%s argument must be a string"),
+ err ? ".error" : ".warning");
+ discard_rest_of_line ();
+ return;
+ }
+
+ msg = demand_copy_C_string (&len);
+ if (msg == NULL)
+ return;
+ }
+
+ if (err)
+ as_bad ("%s", msg);
+ else
+ as_warn ("%s", msg);
+ demand_empty_rest_of_line ();
+}
+
/* Handle the MRI fail pseudo-op. */
void
-s_fail (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_fail (int ignore ATTRIBUTE_UNUSED)
{
offsetT temp;
char *stop = NULL;
}
void
-s_fill (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_fill (int ignore ATTRIBUTE_UNUSED)
{
expressionS rep_exp;
long size = 1;
#define BSD_FILL_SIZE_CROCK_8 (8)
if (size > BSD_FILL_SIZE_CROCK_8)
{
- as_warn (_(".fill size clamped to %d."), BSD_FILL_SIZE_CROCK_8);
+ as_warn (_(".fill size clamped to %d"), BSD_FILL_SIZE_CROCK_8);
size = BSD_FILL_SIZE_CROCK_8;
}
if (size < 0)
{
- as_warn (_("Size negative: .fill ignored."));
+ as_warn (_("size negative; .fill ignored"));
size = 0;
}
else if (rep_exp.X_op == O_constant && rep_exp.X_add_number <= 0)
{
if (rep_exp.X_add_number < 0)
- as_warn (_("Repeat < 0, .fill ignored"));
+ as_warn (_("repeat < 0; .fill ignored"));
size = 0;
}
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) fill,
(size > BSD_FILL_SIZE_CROCK_4
? BSD_FILL_SIZE_CROCK_4
: (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
+ 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
-s_globl (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_globl (int ignore ATTRIBUTE_UNUSED)
{
char *name;
int c;
{
input_line_pointer++;
SKIP_WHITESPACE ();
- if (*input_line_pointer == '\n')
+ if (is_end_of_line[(unsigned char) *input_line_pointer])
c = '\n';
}
}
/* Handle the MRI IRP and IRPC pseudo-ops. */
void
-s_irp (irpc)
- int irpc;
+s_irp (int irpc)
{
char *file;
unsigned int line;
sb_new (&out);
- err = expand_irp (irpc, 0, &s, &out, get_line_sb, '\0');
+ err = expand_irp (irpc, 0, &s, &out, get_line_sb);
if (err != NULL)
as_bad_where (file, line, "%s", err);
which is what to do about duplicates. */
void
-s_linkonce (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_linkonce (int ignore ATTRIBUTE_UNUSED)
{
enum linkonce_type type;
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). */
- int needs_align;
- /* 1 if the alignment value should be interpreted as the byte boundary,
- rather than the power of 2. */
- int bytes_p;
+void
+bss_alloc (symbolS *symbolP, addressT size, int align)
{
- register char *name;
- register char c;
- register char *p;
- register int temp;
- register symbolS *symbolP;
+ char *pfrag;
segT current_seg = now_seg;
subsegT current_subseg = now_subseg;
- const int max_alignment = 15;
- int align = 0;
segT bss_seg = bss_section;
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- 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')
- {
- as_bad (_("Missing size expression"));
- return;
- }
-
- if ((temp = get_absolute_expression ()) < 0)
- {
- as_warn (_("BSS length (%d.) <0! Ignored."), temp);
- ignore_rest_of_line ();
- return;
- }
-
#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 (temp <= bfd_get_gp_size (stdoutput))
+ if (size <= bfd_get_gp_size (stdoutput))
{
bss_seg = subseg_new (".sbss", 1);
seg_info (bss_seg)->bss = 1;
}
}
#endif
+ subseg_set (bss_seg, 1);
- if (!needs_align)
+ if (align)
{
- TC_IMPLICIT_LCOMM_ALIGNMENT (temp, align);
-
- /* Still zero unless TC_IMPLICIT_LCOMM_ALIGNMENT set it. */
- if (align)
- record_alignment (bss_seg, align);
+ record_alignment (bss_seg, align);
+ frag_align (align, 0, 0);
}
- if (needs_align)
- {
- align = 0;
- SKIP_WHITESPACE ();
-
- if (*input_line_pointer != ',')
- {
- as_bad (_("Expected comma after size"));
- ignore_rest_of_line ();
- return;
- }
-
- input_line_pointer++;
- SKIP_WHITESPACE ();
-
- if (*input_line_pointer == '\n')
- {
- as_bad (_("Missing alignment"));
- return;
- }
-
- align = get_absolute_expression ();
-
- if (bytes_p)
- {
- /* Convert to a power of 2. */
- if (align != 0)
- {
- unsigned int i;
+ /* Detach from old frag. */
+ if (S_GET_SEGMENT (symbolP) == bss_seg)
+ symbol_get_frag (symbolP)->fr_symbol = NULL;
- 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);
- }
- else if (align < 0)
- {
- align = 0;
- as_warn (_("Alignment negative. 0 assumed."));
- }
-
- record_alignment (bss_seg, 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 ();
- }
+ symbol_set_frag (symbolP, frag_now);
+ pfrag = frag_var (rs_org, 1, 1, 0, symbolP, size, NULL);
+ *pfrag = 0;
+
+#ifdef S_SET_SIZE
+ S_SET_SIZE (symbolP, size);
#endif
- }
+ S_SET_SEGMENT (symbolP, bss_seg);
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
+#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. */
+ if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
+ S_SET_STORAGE_CLASS (symbolP, C_STAT);
+#endif /* OBJ_COFF */
- if (
-#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 (current_seg, current_subseg);
+}
- subseg_set (bss_seg, 1);
+offsetT
+parse_align (int align_bytes)
+{
+ expressionS exp;
+ addressT align;
- if (align)
- frag_align (align, 0, 0);
-
- /* Detach from old frag. */
- if (S_GET_SEGMENT (symbolP) == bss_seg)
- symbol_get_frag (symbolP)->fr_symbol = NULL;
+ SKIP_WHITESPACE ();
+ if (*input_line_pointer != ',')
+ {
+ no_align:
+ as_bad (_("expected alignment after size"));
+ ignore_rest_of_line ();
+ return -1;
+ }
- symbol_set_frag (symbolP, frag_now);
- pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP,
- (offsetT) temp, (char *) 0);
- *pfrag = 0;
+ input_line_pointer++;
+ SKIP_WHITESPACE ();
- S_SET_SEGMENT (symbolP, bss_seg);
+ align = get_absolute_expr (&exp);
+ if (exp.X_op == O_absent)
+ goto no_align;
-#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. */
- if (S_GET_STORAGE_CLASS (symbolP) != C_EXT)
+ if (!exp.X_unsigned)
+ {
+ as_warn (_("alignment negative; 0 assumed"));
+ align = 0;
+ }
+
+ if (align_bytes && align != 0)
+ {
+ /* convert to a power of 2 alignment */
+ unsigned int alignp2 = 0;
+ while ((align & 1) == 0)
+ align >>= 1, ++alignp2;
+ if (align != 1)
{
- S_SET_STORAGE_CLASS (symbolP, C_STAT);
+ as_bad (_("alignment not a power of 2"));
+ ignore_rest_of_line ();
+ return -1;
}
-#endif /* OBJ_COFF */
+ align = alignp2;
+ }
+ return align;
+}
-#ifdef S_SET_SIZE
- S_SET_SIZE (symbolP, temp);
-#endif
+/* Called from s_comm_internal after symbol name and size have been
+ parsed. NEEDS_ALIGN is 0 if it was an ".lcomm" (2 args only),
+ 1 if this was a ".bss" directive which has a 3rd argument
+ (alignment as a power of 2), or 2 if this was a ".bss" directive
+ with alignment in bytes. */
+
+symbolS *
+s_lcomm_internal (int needs_align, symbolS *symbolP, addressT size)
+{
+ addressT align = 0;
+
+ if (needs_align)
+ {
+ align = parse_align (needs_align - 1);
+ if (align == (addressT) -1)
+ return NULL;
}
else
- as_bad (_("Ignoring attempt to re-define symbol `%s'."),
- S_GET_NAME (symbolP));
+ /* Assume some objects may require alignment on some systems. */
+ TC_IMPLICIT_LCOMM_ALIGNMENT (size, align);
- subseg_set (current_seg, current_subseg);
-
- demand_empty_rest_of_line ();
+ bss_alloc (symbolP, size, align);
+ return symbolP;
}
void
-s_lcomm (needs_align)
- int needs_align;
+s_lcomm (int needs_align)
{
- s_lcomm_internal (needs_align, 0);
+ s_comm_internal (needs_align, s_lcomm_internal);
}
void
-s_lcomm_bytes (needs_align)
- int needs_align;
+s_lcomm_bytes (int needs_align)
{
- s_lcomm_internal (needs_align, 1);
+ s_comm_internal (needs_align * 2, s_lcomm_internal);
}
void
-s_lsym (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_lsym (int ignore ATTRIBUTE_UNUSED)
{
register char *name;
register char c;
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)
{
ignore_rest_of_line ();
return;
}
-
+
*p = 0;
symbolP = symbol_find_or_make (name);
}
else
{
- as_bad (_("Symbol %s already defined"), name);
+ as_bad (_("symbol `%s' is already defined"), name);
}
-
+
*p = c;
demand_empty_rest_of_line ();
}
-/* Read a line into an sb. */
+/* 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;
+get_line_sb (sb *line)
{
char quote1, quote2, inquote;
+ unsigned char c;
if (input_line_pointer[-1] == '\n')
bump_line_counters ();
#endif
inquote = '\0';
-
- while (!is_end_of_line[(unsigned char) *input_line_pointer]
- || (inquote != '\0' && *input_line_pointer != '\n'))
+
+ while ((c = * input_line_pointer ++) != 0
+ && (!is_end_of_line[c]
+ || (inquote != '\0' && c != '\n')))
{
- if (inquote == *input_line_pointer)
+ if (inquote == c)
inquote = '\0';
else if (inquote == '\0')
{
- if (*input_line_pointer == quote1)
+ if (c == quote1)
inquote = quote1;
- else if (*input_line_pointer == quote2)
+ else if (c == quote2)
inquote = quote2;
}
-
- sb_add_char (line, *input_line_pointer++);
- }
-
- while (input_line_pointer < buffer_limit
- && is_end_of_line[(unsigned char) *input_line_pointer])
- {
- if (input_line_pointer[-1] == '\n')
- bump_line_counters ();
- ++input_line_pointer;
+
+ sb_add_char (line, c);
}
-
- return 1;
+
+ /* 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;
}
-/* Define a macro. This is an interface to macro.c, which is shared
- between gas and gasp. */
+/* Define a macro. This is an interface to macro.c. */
void
-s_macro (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_macro (int ignore ATTRIBUTE_UNUSED)
{
char *file;
unsigned int line;
expansion. */
void
-s_mexit (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_mexit (int ignore ATTRIBUTE_UNUSED)
{
cond_exit_macro (macro_nest);
buffer_limit = input_scrub_next_buffer (&input_line_pointer);
/* Switch in and out of MRI mode. */
void
-s_mri (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_mri (int ignore ATTRIBUTE_UNUSED)
{
int on, old_flag;
/* Handle changing the location counter. */
static void
-do_org (segment, exp, fill)
- segT segment;
- expressionS *exp;
- int fill;
+do_org (segT segment, expressionS *exp, int fill)
{
if (segment != now_seg && segment != absolute_section)
- as_bad (_("invalid segment \"%s\"; segment \"%s\" assumed"),
- segment_name (segment), segment_name (now_seg));
+ as_bad (_("invalid segment \"%s\""), segment_name (segment));
if (now_seg == absolute_section)
{
else
{
char *p;
+ symbolS *sym = exp->X_add_symbol;
+ offsetT off = exp->X_add_number * OCTETS_PER_BYTE;
+
+ if (exp->X_op != O_constant && exp->X_op != O_symbol)
+ {
+ /* Handle complex expressions. */
+ sym = make_expr_symbol (exp);
+ off = 0;
+ }
- p = frag_var (rs_org, 1, 1, (relax_substateT) 0, exp->X_add_symbol,
- exp->X_add_number * OCTETS_PER_BYTE, (char *) NULL);
+ p = frag_var (rs_org, 1, 1, (relax_substateT) 0, sym, off, (char *) 0);
*p = fill;
}
}
void
-s_org (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_org (int ignore ATTRIBUTE_UNUSED)
{
register segT segment;
expressionS exp;
flags will be set in the section. */
void
-s_mri_sect (type)
- char *type ATTRIBUTE_UNUSED;
+s_mri_sect (char *type ATTRIBUTE_UNUSED)
{
#ifdef TC_M68K
SKIP_WHITESPACE ();
name = input_line_pointer;
- if (!isdigit ((unsigned char) *name))
+ if (!ISDIGIT (*name))
c = get_symbol_end ();
else
{
{
++input_line_pointer;
}
- while (isdigit ((unsigned char) *input_line_pointer));
-
+ while (ISDIGIT (*input_line_pointer));
+
c = *input_line_pointer;
*input_line_pointer = '\0';
}
if (*input_line_pointer == ',')
{
c = *++input_line_pointer;
- c = toupper ((unsigned char) c);
+ c = TOUPPER (c);
if (c == 'C' || c == 'D' || c == 'M' || c == 'R')
*type = c;
else
/* Handle the .print pseudo-op. */
void
-s_print (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_print (int ignore ATTRIBUTE_UNUSED)
{
char *s;
int len;
s = demand_copy_C_string (&len);
- printf ("%s\n", s);
+ if (s != NULL)
+ printf ("%s\n", s);
demand_empty_rest_of_line ();
}
/* Handle the .purgem pseudo-op. */
void
-s_purgem (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_purgem (int ignore ATTRIBUTE_UNUSED)
{
if (is_it_end_of_statement ())
{
demand_empty_rest_of_line ();
}
+/* Handle the .endm/.endr pseudo-ops. */
+
+static void
+s_bad_end (int endr)
+{
+ as_warn (_(".end%c encountered without preceeding %s"),
+ endr ? 'r' : 'm',
+ endr ? ".rept, .irp, or .irpc" : ".macro");
+ demand_empty_rest_of_line ();
+}
+
/* Handle the .rept pseudo-op. */
void
-s_rept (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_rept (int ignore ATTRIBUTE_UNUSED)
{
int count;
different directives to be used as the start/end keys. */
void
-do_repeat (count, start, end)
- int count;
- const char *start;
- const char *end;
+do_repeat (int count, const char *start, const char *end)
{
sb one;
sb many;
such as line substitutions. */
void
-end_repeat (extra)
- int extra;
+end_repeat (int extra)
{
cond_exit_macro (macro_nest);
while (extra-- >= 0)
defined. */
void
-s_set (equiv)
- int equiv;
+s_set (int equiv)
{
register char *name;
register char delim;
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 name \"%s\""), name);
+ as_bad (_("expected comma after \"%s\""), name);
*end_name = delim;
ignore_rest_of_line ();
return;
#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. */
+ for this symbol. */
if (listing & LISTING_SYMBOLS)
{
extern struct list_info_struct *listing_tail;
if (equiv
&& S_IS_DEFINED (symbolP)
&& S_GET_SEGMENT (symbolP) != reg_section)
- as_bad (_("symbol `%s' already defined"), S_GET_NAME (symbolP));
+ 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;
+s_space (int mult)
{
expressionS exp;
expressionS val;
|| (mult != 0 && mult != 1 && val.X_add_number != 0))
{
if (exp.X_op != O_constant)
- as_bad (_("Unsupported variable size or fill value"));
+ as_bad (_("unsupported variable size or fill value"));
else
{
offsetT i;
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);
friends. */
void
-s_float_space (float_type)
- int float_type;
+s_float_space (int float_type)
{
offsetT count;
int flen;
/* Skip any 0{letter} that may be present. Don't even check if the
* letter is legal. */
if (input_line_pointer[0] == '0'
- && isalpha ((unsigned char) input_line_pointer[1]))
+ && ISALPHA (input_line_pointer[1]))
input_line_pointer += 2;
/* Accept :xxxx, where the x's are hex digits, for a floating point
know (flen > 0);
if (err)
{
- as_bad (_("Bad floating literal: %s"), err);
+ as_bad (_("bad floating literal: %s"), err);
ignore_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;
+s_struct (int ignore ATTRIBUTE_UNUSED)
{
char *stop = NULL;
char stopc;
}
void
-s_text (ignore)
- int ignore ATTRIBUTE_UNUSED;
+s_text (int ignore ATTRIBUTE_UNUSED)
{
register int temp;
#endif
}
\f
+
+/* Verify that we are at the end of a line. If not, issue an error and
+ skip to EOL. */
+
void
-demand_empty_rest_of_line ()
+demand_empty_rest_of_line (void)
{
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 ((unsigned char) *input_line_pointer))
- as_bad (_("Rest of line ignored. First ignored character is `%c'."),
- *input_line_pointer);
+ if (ISPRINT (*input_line_pointer))
+ as_bad (_("junk at end of line, first unrecognized 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])
- input_line_pointer++;
+ as_bad (_("junk at end of line, first unrecognized character valued 0x%x"),
+ *input_line_pointer);
+ ignore_rest_of_line ();
}
+ /* Return pointing just after end-of-line. */
+ know (is_end_of_line[(unsigned char) input_line_pointer[-1]]);
+}
+
+/* Silently advance to the end of line. Use this after already having
+ issued an error about something bad. */
+
+void
+ignore_rest_of_line (void)
+{
+ 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. */
}
void
-discard_rest_of_line ()
+discard_rest_of_line (void)
{
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.
-
+ 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; */
+ Tried to set symbol to value of expression.
+ Will change symbols type, value, and frag; */
void
-pseudo_set (symbolP)
- symbolS *symbolP;
+pseudo_set (symbolS *symbolP)
{
expressionS exp;
#if (defined (OBJ_AOUT) || defined (OBJ_BOUT)) && ! defined (BFD_ASSEMBLER)
(void) expression (&exp);
if (exp.X_op == O_illegal)
- as_bad (_("illegal expression; zero assumed"));
+ as_bad (_("illegal expression"));
else if (exp.X_op == O_absent)
- as_bad (_("missing expression; zero assumed"));
+ as_bad (_("missing expression"));
else if (exp.X_op == O_big)
{
if (exp.X_add_number > 0)
- as_bad (_("bignum invalid; zero assumed"));
+ as_bad (_("bignum invalid"));
else
- as_bad (_("floating point number invalid; zero assumed"));
+ as_bad (_("floating point number invalid"));
}
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))
&& (symbol_get_frag (exp.X_add_symbol)
== symbol_get_frag (exp.X_op_symbol)))
|| exp.X_add_number != 0)
symbol_set_value_expression (symbolP, &exp);
else if (symbol_section_p (symbolP))
- as_bad ("invalid attempt to set value of section symbol");
+ as_bad ("attempt to set value of section symbol");
else
{
symbolS *s = exp.X_add_symbol;
}
}
\f
-/* cons()
-
+/* 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
#ifdef TC_M68K
static void
-parse_mri_cons PARAMS ((expressionS *exp, unsigned int nbytes));
+parse_mri_cons (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));
+parse_bitfield_cons (expressionS *exp, unsigned int nbytes);
#endif
#ifdef REPEAT_CONS_EXPRESSIONS
#define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) parse_repeat_cons (EXP, NBYTES)
static void
-parse_repeat_cons PARAMS ((expressionS *exp, unsigned int nbytes));
+parse_repeat_cons (expressionS *exp, unsigned int nbytes);
#endif
/* If we haven't gotten one yet, just call expression. */
#endif
#endif
+void
+do_parse_cons_expression (expressionS *exp,
+ int nbytes ATTRIBUTE_UNUSED)
+{
+ TC_PARSE_CONS_EXPRESSION (exp, nbytes);
+}
+
+
/* 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;
+cons_worker (register int nbytes, /* 1=.byte, 2=.word, 4=.long. */
+ int rva)
{
int c;
expressionS exp;
}
void
-cons (size)
- int size;
+cons (int size)
{
cons_worker (size, 0);
}
void
-s_rva (size)
- int size;
+s_rva (int size)
{
cons_worker (size, 1);
}
NBYTES bytes. If need_pass_2 is 1, this does nothing. */
void
-emit_expr (exp, nbytes)
- expressionS *exp;
- unsigned int nbytes;
+emit_expr (expressionS *exp, unsigned int nbytes)
{
operatorT op;
register char *p;
if (need_pass_2)
return;
+ dot_value = frag_now_fix ();
+
#ifndef NO_LISTING
#ifdef OBJ_ELF
/* When gcc emits DWARF 1 debugging pseudo-ops, a line number will
}
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;
}
x->sub = exp->X_op_symbol;
x->addnum = exp->X_add_number;
x->added = 0;
+ x->use_jump = 0;
new_broken_words++;
return;
}
pass to md_number_to_chars, handle it as a bignum. */
if (op == O_constant && nbytes > sizeof (valueT))
{
- valueT val;
- int gencnt;
-
- if (!exp->X_unsigned && exp->X_add_number < 0)
- extra_digit = (valueT) -1;
- val = (valueT) exp->X_add_number;
- gencnt = 0;
- do
- {
- generic_bignum[gencnt] = val & LITTLENUM_MASK;
- val >>= LITTLENUM_NUMBER_OF_BITS;
- ++gencnt;
- }
- while (val != 0);
- op = exp->X_op = O_big;
- exp->X_add_number = gencnt;
+ extra_digit = exp->X_unsigned ? 0 : -1;
+ convert_to_bignum (exp);
+ op = O_big;
}
if (op == O_constant)
&& ((get & mask) != mask
|| (get & hibit) == 0))
{ /* Leading bits contain both 0s & 1s. */
- as_warn (_("Value 0x%lx truncated to 0x%lx."),
+ as_warn (_("value 0x%lx truncated to 0x%lx"),
(unsigned long) get, (unsigned long) use);
}
/* Put bytes in right order. */
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;
them in words, longs, etc. and we'll pack them in target byte order
for you.
- The rules are: pack least significat bit first, if a field doesn't
+ The rules are: pack least significant bit first, if a field doesn't
entirely fit, put it in the next unit. Overflowing the bitfield is
explicitly *not* even a warning. The bitwidth should be considered
a "mask".
break;
} /* Won't fit. */
- hold = ++input_line_pointer; /* skip ':' */
+ /* Skip ':'. */
+ hold = ++input_line_pointer;
(void) expression (exp);
if (exp->X_op != O_constant)
result <<= 8;
scan++;
}
-
+
/* Create correct expression. */
exp->X_op = O_constant;
exp->X_add_number = result;
-
+
/* Fake it so that we can read the next char too. */
if (input_line_pointer[0] != '\'' ||
(input_line_pointer[0] == '\'' && input_line_pointer[1] == '\''))
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;
}
point number. */
static int
-hex_float (float_type, bytes)
- int float_type;
- char *bytes;
+hex_float (int float_type, char *bytes)
{
int length;
int i;
break;
default:
- as_bad (_("Unknown floating type type '%c'"), float_type);
+ as_bad (_("unknown floating type type '%c'"), float_type);
return -1;
}
if (i >= length)
{
- as_warn (_("Floating point constant too large"));
+ as_warn (_("floating point constant too large"));
return -1;
}
d = hex_value (*input_line_pointer) << 4;
return length;
}
-/* float_cons()
-
+/* 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
+ truncation, 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 ... */
+float_cons (/* 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. */
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. */
+ 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 ((unsigned char) input_line_pointer[1]))
+ && 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. */
+ point with the exact digits specified. */
if (input_line_pointer[0] == ':')
{
++input_line_pointer;
know (length > 0);
if (err)
{
- as_bad (_("Bad floating literal: %s"), err);
+ as_bad (_("bad floating literal: %s"), err);
ignore_rest_of_line ();
return;
}
++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"));
/* Return the size of a LEB128 value. */
static inline int
-sizeof_sleb128 (value)
- offsetT value;
+sizeof_sleb128 (offsetT value)
{
register int size = 0;
register unsigned byte;
}
static inline int
-sizeof_uleb128 (value)
- valueT value;
+sizeof_uleb128 (valueT value)
{
register int size = 0;
register unsigned byte;
}
int
-sizeof_leb128 (value, sign)
- valueT value;
- int sign;
+sizeof_leb128 (valueT value, int sign)
{
if (sign)
return sizeof_sleb128 ((offsetT) value);
/* Output a LEB128 value. */
static inline int
-output_sleb128 (p, value)
- char *p;
- offsetT value;
+output_sleb128 (char *p, offsetT value)
{
register char *orig = p;
register int more;
}
static inline int
-output_uleb128 (p, value)
- char *p;
- valueT value;
+output_uleb128 (char *p, valueT value)
{
char *orig = p;
}
int
-output_leb128 (p, value, sign)
- char *p;
- valueT value;
- int sign;
+output_leb128 (char *p, valueT value, int sign)
{
if (sign)
return output_sleb128 (p, (offsetT) value);
for "normal" values that this be streamlined. */
static inline int
-output_big_sleb128 (p, bignum, size)
- char *p;
- LITTLENUM_TYPE *bignum;
- int size;
+output_big_sleb128 (char *p, LITTLENUM_TYPE *bignum, int size)
{
char *orig = p;
valueT val = 0;
unsigned byte;
/* Strip leading sign extensions off the bignum. */
- while (size > 0 && bignum[size - 1] == (LITTLENUM_TYPE) -1)
+ while (size > 1
+ && bignum[size - 1] == LITTLENUM_MASK
+ && bignum[size - 2] > LITTLENUM_MASK / 2)
size--;
do
{
- if (loaded < 7 && size > 0)
- {
- val |= (*bignum << loaded);
- loaded += 8 * CHARS_PER_LITTLENUM;
- size--;
- bignum++;
- }
-
- byte = val & 0x7f;
- loaded -= 7;
- val >>= 7;
+ /* OR in the next part of the littlenum. */
+ val |= (*bignum << loaded);
+ loaded += LITTLENUM_NUMBER_OF_BITS;
+ size--;
+ bignum++;
- if (size == 0)
+ /* Add bytes until there are less than 7 bits left in VAL
+ or until every non-sign bit has been written. */
+ do
{
- if ((val == 0 && (byte & 0x40) == 0)
- || (~(val | ~(((valueT) 1 << loaded) - 1)) == 0
- && (byte & 0x40) != 0))
+ byte = val & 0x7f;
+ loaded -= 7;
+ val >>= 7;
+ if (size > 0
+ || val != ((byte & 0x40) == 0 ? 0 : ((valueT) 1 << loaded) - 1))
byte |= 0x80;
+
+ if (orig)
+ *p = byte;
+ p++;
}
+ while ((byte & 0x80) != 0 && loaded >= 7);
+ }
+ while (size > 0);
+ /* Mop up any left-over bits (of which there will be less than 7). */
+ if ((byte & 0x80) != 0)
+ {
+ /* Sign-extend VAL. */
+ if (val & (1 << (loaded - 1)))
+ val |= ~0 << loaded;
if (orig)
- *p = byte;
+ *p = val & 0x7f;
p++;
}
- while (byte & 0x80);
return p - orig;
}
static inline int
-output_big_uleb128 (p, bignum, size)
- char *p;
- LITTLENUM_TYPE *bignum;
- int size;
+output_big_uleb128 (char *p, LITTLENUM_TYPE *bignum, int size)
{
char *orig = p;
valueT val = 0;
}
static int
-output_big_leb128 (p, bignum, size, sign)
- char *p;
- LITTLENUM_TYPE *bignum;
- int size, sign;
+output_big_leb128 (char *p, LITTLENUM_TYPE *bignum, int size, int sign)
{
if (sign)
return output_big_sleb128 (p, bignum, size);
leb128 value. */
void
-emit_leb128_expr (exp, sign)
- expressionS *exp;
- int sign;
+emit_leb128_expr (expressionS *exp, int sign)
{
operatorT op = exp->X_op;
+ int nbytes;
if (op == O_absent || op == O_illegal)
{
}
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;
}
as_warn (_("register value used as expression"));
op = O_constant;
}
+ else if (op == O_constant
+ && sign
+ && (exp->X_add_number < 0) != !exp->X_unsigned)
+ {
+ /* We're outputting a signed leb128 and the sign of X_add_number
+ doesn't reflect the sign of the original value. Convert EXP
+ to a correctly-extended bignum instead. */
+ convert_to_bignum (exp);
+ op = O_big;
+ }
+
+ /* 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)
{
/* Parse the .sleb128 and .uleb128 pseudos. */
void
-s_leb128 (sign)
- int sign;
+s_leb128 (int sign)
{
expressionS exp;
+#ifdef md_flush_pending_output
+ md_flush_pending_output ();
+#endif
+
do
{
expression (&exp);
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. */
+stringer (/* 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;
{
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 ();
#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. */
+ 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)
FRAG_APPEND_1_CHAR (c);
if (*input_line_pointer != '>')
{
- as_bad (_("Expected <nn>"));
+ as_bad (_("expected <nn>"));
}
input_line_pointer++;
break;
returning values bigger than 1 byte. xoxorich. */
unsigned int
-next_char_of_string ()
+next_char_of_string (void)
{
register unsigned int c;
break;
case '\n':
- as_warn (_("Unterminated string: Newline inserted."));
+ as_warn (_("unterminated string; newline inserted"));
bump_line_counters ();
break;
int i;
for (i = 0, number = 0;
- isdigit (c) && i < 3;
+ ISDIGIT (c) && i < 3;
c = *input_line_pointer++, i++)
{
number = number * 8 + c - '0';
}
-
+
c = number & 0xff;
}
--input_line_pointer;
number = 0;
c = *input_line_pointer++;
- while (isxdigit (c))
+ while (ISXDIGIT (c))
{
- if (isdigit (c))
+ if (ISDIGIT (c))
number = number * 16 + c - '0';
- else if (isupper (c))
+ else if (ISUPPER (c))
number = number * 16 + c - 'A' + 10;
else
number = number * 16 + c - 'a' + 10;
case '\n':
/* To be compatible with BSD 4.2 as: give the luser a linefeed!! */
- as_warn (_("Unterminated string: Newline inserted."));
+ 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 */
}
\f
static segT
-get_segmented_expression (expP)
- register expressionS *expP;
+get_segmented_expression (register expressionS *expP)
{
register segT retval;
|| 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;
}
static segT
-get_known_segmented_expression (expP)
- register expressionS *expP;
+get_known_segmented_expression (register expressionS *expP)
{
register segT retval;
}
offsetT
-get_absolute_expression ()
+get_absolute_expr (expressionS *exp)
{
- expressionS exp;
-
- expression (&exp);
- if (exp.X_op != O_constant)
+ expression (exp);
+ if (exp->X_op != O_constant)
{
- if (exp.X_op != O_absent)
- as_bad (_("bad or irreducible absolute expression; zero assumed"));
- exp.X_add_number = 0;
+ if (exp->X_op != O_absent)
+ as_bad (_("bad or irreducible absolute expression"));
+ exp->X_add_number = 0;
}
- return exp.X_add_number;
+ return exp->X_add_number;
+}
+
+offsetT
+get_absolute_expression (void)
+{
+ expressionS exp;
+
+ return get_absolute_expr (&exp);
}
char /* Return terminator. */
-get_absolute_expression_and_terminator (val_pointer)
- long *val_pointer; /* Return value of expression. */
+get_absolute_expression_and_terminator (long *val_pointer /* Return value of expression. */)
{
/* FIXME: val_pointer should probably be offsetT *. */
*val_pointer = (long) get_absolute_expression ();
Give a warning if that happens. */
char *
-demand_copy_C_string (len_pointer)
- int *len_pointer;
+demand_copy_C_string (int *len_pointer)
{
register char *s;
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;
}
\f
Return NULL if we can't read a string here. */
char *
-demand_copy_string (lenP)
- int *lenP;
+demand_copy_string (int *lenP)
{
register unsigned int c;
register int len;
}
else
{
- as_warn (_("Missing string"));
+ as_bad (_("missing string"));
retval = NULL;
ignore_rest_of_line ();
}
}
\f
/* 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 ()
+is_it_end_of_statement (void)
{
SKIP_WHITESPACE ();
return (is_end_of_line[(unsigned char) *input_line_pointer]);
}
void
-equals (sym_name, reassign)
- char *sym_name;
- int reassign;
+equals (char *sym_name, int reassign)
{
register symbolS *symbolP; /* Symbol we are working with. */
char *stop = NULL;
}
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' already defined"), S_GET_NAME (symbolP));
+ 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);
}
if (flag_mri)
{
/* Check garbage after the expression. */
- ignore_rest_of_line ();
+ demand_empty_rest_of_line ();
mri_comment_end (stop, stopc);
}
}
+/* .incbin -- include a file verbatim at the current location. */
+
+void
+s_incbin (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 remainder of the file. */
+ if (count == 0)
+ count = file_len - skip;
+
+ if (skip < 0 || count < 0 || file_len < 0 || skip + count > file_len)
+ {
+ as_bad (_("skip (%ld) or count (%ld) invalid for 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. */
void
-s_include (arg)
- int arg ATTRIBUTE_UNUSED;
+s_include (int arg ATTRIBUTE_UNUSED)
{
char *filename;
int i;
if (filename == NULL)
{
/* demand_copy_string has already printed an error and
- called ignore_rest_of_line. */
+ called ignore_rest_of_line. */
return;
}
}
++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:
}
void
-add_include_dir (path)
- char *path;
+add_include_dir (char *path)
{
int i;
/* Output debugging information to denote the source file. */
static void
-generate_file_debug ()
+generate_file_debug (void)
{
if (debug_type == DEBUG_STABS)
stabs_generate_asm_file ();
/* Output line number debugging information for the current source line. */
void
-generate_lineno_debug ()
+generate_lineno_debug (void)
{
-#ifdef ECOFF_DEBUGGING
- /* ECOFF assemblers automatically generate debugging information.
- FIXME: This should probably be handled elsewhere. */
- if (debug_type == DEBUG_UNSPECIFIED)
- {
- if (ECOFF_DEBUGGING && ecoff_no_current_file ())
- debug_type = DEBUG_ECOFF;
- else
- debug_type = DEBUG_NONE;
- }
-#endif
-
switch (debug_type)
{
case DEBUG_UNSPECIFIED:
case DEBUG_NONE:
+ case DEBUG_DWARF:
break;
case DEBUG_STABS:
stabs_generate_asm_lineno ();
case DEBUG_ECOFF:
ecoff_generate_asm_lineno ();
break;
- case DEBUG_DWARF:
case DEBUG_DWARF2:
- /* FIXME. */
+ /* ??? 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;
}
}
END_P is zero for .func, and non-zero for .endfunc. */
void
-s_func (end_p)
- int end_p;
+s_func (int end_p)
{
do_s_func (end_p, NULL);
}
If DEFAULT_PREFIX is NULL, use the target's "leading char". */
void
-do_s_func (end_p, default_prefix)
- int end_p;
- const char *default_prefix;
+do_s_func (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
}
\f
void
-s_ignore (arg)
- int arg ATTRIBUTE_UNUSED;
+s_ignore (int arg ATTRIBUTE_UNUSED)
{
while (!is_end_of_line[(unsigned char) *input_line_pointer])
{
}
void
-read_print_statistics (file)
- FILE *file;
+read_print_statistics (FILE *file)
{
hash_print_statistics (file, "pseudo-op table", po_hash);
}
This call avoids macro/conditionals nesting checking, since the contents of
the line are assumed to replace the contents of a line already scanned.
- An appropriate use of this function would be substition of input lines when
+ An appropriate use of this function would be substitution of input lines when
called by md_start_line_hook(). The given line is assumed to already be
properly scrubbed. */
void
-input_scrub_insert_line (line)
- const char *line;
+input_scrub_insert_line (const char *line)
{
sb newline;
sb_new (&newline);
file; no include path searching or dependency registering is performed. */
void
-input_scrub_insert_file (path)
- char *path;
+input_scrub_insert_file (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