/* This is the Assembler Pre-Processor
- Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2006, 2007
- Free Software Foundation, Inc.
+ Copyright (C) 1987-2015 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
GAS is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
+ the Free Software Foundation; either version 3, or (at your option)
any later version.
- GAS is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ GAS is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
+ License for more details.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
#endif
#endif
+#ifdef H_TICK_HEX
+int enable_h_tick_hex = 0;
+#endif
+
#ifdef TC_M68K
/* Whether we are scrubbing in m68k MRI mode. This is different from
flag_m68k_mri, because the two flags will be affected by the .mri
#define LEX_IS_DOUBLEBAR_1ST 13
#endif
#define LEX_IS_PARALLEL_SEPARATOR 14
+#ifdef H_TICK_HEX
+#define LEX_IS_H 15
+#endif
#define IS_SYMBOL_COMPONENT(c) (lex[c] == LEX_IS_SYMBOL_COMPONENT)
#define IS_WHITESPACE(c) (lex[c] == LEX_IS_WHITESPACE)
#define IS_LINE_SEPARATOR(c) (lex[c] == LEX_IS_LINE_SEPARATOR)
for (p = line_comment_chars; *p; p++)
lex[(unsigned char) *p] = LEX_IS_LINE_COMMENT_START;
- for (p = line_separator_chars; *p; p++)
+#ifndef tc_line_separator_chars
+#define tc_line_separator_chars line_separator_chars
+#endif
+ for (p = tc_line_separator_chars; *p; p++)
lex[(unsigned char) *p] = LEX_IS_LINE_SEPARATOR;
#ifdef tc_parallel_separator_chars
/* Must do this is we want VLIW instruction with "->" or "<-". */
lex['-'] = LEX_IS_SYMBOL_COMPONENT;
#endif
+
+#ifdef H_TICK_HEX
+ if (enable_h_tick_hex)
+ {
+ lex['h'] = LEX_IS_H;
+ lex['H'] = LEX_IS_H;
+ }
+#endif
}
/* Saved state of the scrubber. */
static char out_buf[20];
static int add_newlines;
static char *saved_input;
-static int saved_input_len;
+static size_t saved_input_len;
static char input_buffer[32 * 1024];
static const char *mri_state;
static char mri_last_ch;
char out_buf[sizeof (out_buf)];
int add_newlines;
char * saved_input;
- int saved_input_len;
+ size_t saved_input_len;
#ifdef TC_M68K
int scrub_m68k_mri;
#endif
char *
app_push (void)
{
- register struct app_save *saved;
+ struct app_save *saved;
saved = (struct app_save *) xmalloc (sizeof (*saved));
saved->state = state;
saved->saved_input = NULL;
else
{
- saved->saved_input = xmalloc (saved_input_len);
+ saved->saved_input = (char *) xmalloc (saved_input_len);
memcpy (saved->saved_input, saved_input, saved_input_len);
saved->saved_input_len = saved_input_len;
}
state = 0;
saved_input = NULL;
+ add_newlines = 0;
return (char *) saved;
}
void
app_pop (char *arg)
{
- register struct app_save *saved = (struct app_save *) arg;
+ struct app_save *saved = (struct app_save *) arg;
/* There is no do_scrub_end (). */
state = saved->state;
saved_input = NULL;
else
{
- assert (saved->saved_input_len <= (int) (sizeof input_buffer));
+ gas_assert (saved->saved_input_len <= sizeof (input_buffer));
memcpy (input_buffer, saved->saved_input, saved->saved_input_len);
saved_input = input_buffer;
saved_input_len = saved->saved_input_len;
machine, and saves its state so that it may return at any point.
This is the way the old code used to work. */
-int
-do_scrub_chars (int (*get) (char *, int), char *tostart, int tolen)
+size_t
+do_scrub_chars (size_t (*get) (char *, size_t), char *tostart, size_t tolen)
{
char *to = tostart;
char *toend = tostart + tolen;
char *from;
char *fromend;
- int fromlen;
- register int ch, ch2 = 0;
+ size_t fromlen;
+ int ch, ch2 = 0;
/* Character that started the string we're working on. */
static char quotechar;
13: After seeing a vertical bar, looking for a second
vertical bar as a parallel expression separator.
#endif
-#ifdef TC_IA64
- 14: After seeing a `(' at state 0, looking for a `)' as
- predicate.
- 15: After seeing a `(' at state 1, looking for a `)' as
- predicate.
+#ifdef TC_PREDICATE_START_CHAR
+ 14: After seeing a predicate start character at state 0, looking
+ for a predicate end character as predicate.
+ 15: After seeing a predicate start character at state 1, looking
+ for a predicate end character as predicate.
#endif
#ifdef TC_Z80
16: After seeing an 'a' or an 'A' at the start of a symbol
GET and PUT macros. */
{
char *s;
- int len;
+ ptrdiff_t len;
for (s = from; s < fromend; s++)
{
memcpy (to, from, len);
to += len;
from += len;
+ if (to >= toend)
+ goto tofull;
}
}
ch = GET ();
if (ch == EOF)
{
+ /* This buffer is here specifically so
+ that the UNGET below will work. */
+ static char one_char_buf[1];
+
as_warn (_("end of file in string; '%c' inserted"), quotechar);
state = old_state;
+ from = fromend = one_char_buf + 1;
+ fromlen = 1;
UNGET ('\n');
PUT (quotechar);
}
line from just after the first white space. */
state = 1;
PUT ('|');
+#ifdef TC_TIC6X
+ /* "||^" is used for SPMASKed instructions. */
+ ch = GET ();
+ if (ch == EOF)
+ goto fromeof;
+ else if (ch == '^')
+ PUT ('^');
+ else
+ UNGET (ch);
+#endif
continue;
#endif
#ifdef TC_Z80
case 16:
/* We have seen an 'a' at the start of a symbol, look for an 'f'. */
ch = GET ();
- if (ch == 'f' || ch == 'F')
+ if (ch == 'f' || ch == 'F')
{
state = 17;
PUT (ch);
if (ch == '\'')
/* Change to avoid warning about unclosed string. */
PUT ('`');
- else
+ else if (ch != EOF)
UNGET (ch);
break;
#endif
/* flushchar: */
ch = GET ();
-#ifdef TC_IA64
- if (ch == '(' && (state == 0 || state == 1))
+#ifdef TC_PREDICATE_START_CHAR
+ if (ch == TC_PREDICATE_START_CHAR && (state == 0 || state == 1))
{
state += 14;
PUT (ch);
}
else if (state == 14 || state == 15)
{
- if (ch == ')')
+ if (ch == TC_PREDICATE_END_CHAR)
{
state -= 14;
PUT (ch);
/* Only keep this white if there's no white *after* the
colon. */
ch2 = GET ();
- UNGET (ch2);
+ if (ch2 != EOF)
+ UNGET (ch2);
if (!IS_WHITESPACE (ch2))
{
state = 9;
PUT (' ');
break;
case 3:
+#ifndef TC_KEEP_OPERAND_SPACES
+ /* For TI C6X, we keep these spaces as they may separate
+ functional unit specifiers from operands. */
if (scrub_m68k_mri)
+#endif
{
/* In MRI mode, we keep these spaces. */
UNGET (ch);
goto recycle; /* Sp in operands */
case 9:
case 10:
+#ifndef TC_KEEP_OPERAND_SPACES
if (scrub_m68k_mri)
+#endif
{
/* In MRI mode, we keep these spaces. */
state = 3;
#ifndef IEEE_STYLE
case LEX_IS_ONECHAR_QUOTE:
+#ifdef H_TICK_HEX
+ if (state == 9 && enable_h_tick_hex)
+ {
+ char c;
+
+ c = GET ();
+ as_warn ("'%c found after symbol", c);
+ UNGET (c);
+ }
+#endif
if (state == 10)
{
/* Preserve the whitespace in foo 'b'. */
ch2 = GET ();
if (ch2 != '-')
{
- UNGET (ch2);
+ if (ch2 != EOF)
+ UNGET (ch2);
goto de_fault;
}
/* Read and skip to end of line. */
#ifdef DOUBLEBAR_PARALLEL
case LEX_IS_DOUBLEBAR_1ST:
ch2 = GET ();
- UNGET (ch2);
+ if (ch2 != EOF)
+ UNGET (ch2);
if (ch2 != '|')
goto de_fault;
while (ch != EOF && !IS_NEWLINE (ch))
ch = GET ();
if (ch == EOF)
- as_warn (_("end of file in comment; newline inserted"));
+ {
+ as_warn (_("end of file in comment; newline inserted"));
+ PUT ('\n');
+ }
+ else /* IS_NEWLINE (ch) */
+ {
+ /* To process non-zero add_newlines. */
+ UNGET (ch);
+ }
state = 0;
- PUT ('\n');
break;
}
/* Looks like `# 123 "filename"' from cpp. */
PUT ('\n');
break;
+#ifdef H_TICK_HEX
+ case LEX_IS_H:
+ /* Look for strings like H'[0-9A-Fa-f] and if found, replace
+ the H' with 0x to make them gas-style hex characters. */
+ if (enable_h_tick_hex)
+ {
+ char quot;
+
+ quot = GET ();
+ if (quot == '\'')
+ {
+ UNGET ('x');
+ ch = '0';
+ }
+ else
+ UNGET (quot);
+ }
+ /* FALL THROUGH */
+#endif
+
case LEX_IS_SYMBOL_COMPONENT:
if (state == 10)
{
#ifdef TC_Z80
/* "af'" is a symbol containing '\''. */
- if (state == 3 && (ch == 'a' || ch == 'A'))
+ if (state == 3 && (ch == 'a' || ch == 'A'))
{
state = 16;
PUT (ch);
ch = GET ();
- if (ch == 'f' || ch == 'F')
+ if (ch == 'f' || ch == 'F')
{
state = 17;
PUT (ch);
else
{
state = 9;
- if (!IS_SYMBOL_COMPONENT (ch))
+ if (ch == EOF || !IS_SYMBOL_COMPONENT (ch))
{
- UNGET (ch);
+ if (ch != EOF)
+ UNGET (ch);
break;
}
}
)
{
char *s;
- int len;
+ ptrdiff_t len;
for (s = from; s < fromend; s++)
{
return to - tostart;
}
-
projects / deliverable / binutils-gdb.git / blobdiff