/* This is the Assembler Pre-Processor
- Copyright 1987, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2005, 2006, 2007, 2008
- Free Software Foundation, Inc.
+ Copyright (C) 1987-2020 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
static const char symver_pseudo[] = ".symver";
static const char * symver_state;
#endif
+#ifdef TC_ARM
+static char last_char;
+#endif
static char lex[256];
static const char symbol_chars[] =
{
lex['"'] = LEX_IS_STRINGQUOTE;
-#if ! defined (TC_HPPA) && ! defined (TC_I370)
- /* I370 uses single-quotes to delimit integer, float constants. */
+#if ! defined (TC_HPPA)
lex['\''] = LEX_IS_ONECHAR_QUOTE;
#endif
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
/* Saved state of the scrubber. */
static int state;
static int old_state;
-static char *out_string;
+static const char *out_string;
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;
{
int state;
int old_state;
- char * out_string;
+ const char * out_string;
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
#if defined TC_ARM && defined OBJ_ELF
const char * symver_state;
#endif
+#ifdef TC_ARM
+ char last_char;
+#endif
};
char *
app_push (void)
{
- register struct app_save *saved;
+ struct app_save *saved;
- saved = (struct app_save *) xmalloc (sizeof (*saved));
+ saved = XNEW (struct app_save);
saved->state = state;
saved->old_state = old_state;
saved->out_string = out_string;
saved->saved_input = NULL;
else
{
- saved->saved_input = xmalloc (saved_input_len);
+ saved->saved_input = XNEWVEC (char, saved_input_len);
memcpy (saved->saved_input, saved_input, saved_input_len);
saved->saved_input_len = saved_input_len;
}
#if defined TC_ARM && defined OBJ_ELF
saved->symver_state = symver_state;
#endif
+#ifdef TC_ARM
+ saved->last_char = last_char;
+#endif
/* do_scrub_begin() is not useful, just wastes time. */
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
{
- gas_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;
#if defined TC_ARM && defined OBJ_ELF
symver_state = saved->symver_state;
#endif
+#ifdef TC_ARM
+ last_char = saved->last_char;
+#endif
free (arg);
}
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++)
{
state = old_state;
PUT (ch);
}
-#ifndef NO_STRING_ESCAPES
- else if (ch == '\\')
+ else if (TC_STRING_ESCAPES && ch == '\\')
{
state = 6;
PUT (ch);
}
-#endif
else if (scrub_m68k_mri && ch == '\n')
{
/* Just quietly terminate the string. This permits lines like
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);
state = 9;
break;
}
+ /* Fall through. */
case 17:
/* We have seen "af" at the start of a symbol,
a ' here is a part of that symbol. */
/* 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);
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;
PUT (ch);
break;
-#ifndef IEEE_STYLE
case LEX_IS_ONECHAR_QUOTE:
#ifdef H_TICK_HEX
if (state == 9 && enable_h_tick_hex)
out_string = out_buf;
PUT (*out_string++);
break;
-#endif
case LEX_IS_COLON:
#ifdef KEEP_WHITE_AROUND_COLON
state = -2;
break;
}
- else
+ else if (ch2 != EOF)
{
UNGET (ch2);
}
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. */
#ifdef TC_ARM
/* For the ARM, care is needed not to damage occurrences of \@
by stripping the @ onwards. Yuck. */
- if (to > tostart && *(to - 1) == '\\')
+ if ((to > tostart ? to[-1] : last_char) == '\\')
/* Do not treat the @ as a start-of-comment. */
goto de_fault;
#endif
#ifdef WARN_COMMENTS
if (!found_comment)
- as_where (&found_comment_file, &found_comment);
+ found_comment_file = as_where (&found_comment);
#endif
do
{
else
UNGET (quot);
}
- /* FALL THROUGH */
#endif
+ /* Fall through. */
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))
{
if (ch != EOF)
UNGET (ch);
)
{
char *s;
- int len;
+ ptrdiff_t len;
for (s = from; s < fromend; s++)
{
fromeof:
/* We have reached the end of the input. */
+#ifdef TC_ARM
+ if (to > tostart)
+ last_char = to[-1];
+#endif
return to - tostart;
tofull:
else
saved_input = NULL;
+#ifdef TC_ARM
+ if (to > tostart)
+ last_char = to[-1];
+#endif
return to - tostart;
}
projects / deliverable / binutils-gdb.git / blobdiff