binutils-gdb/gas/macro.c

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/* macro.c - macro support for gas
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Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Written by Steve and Judy Chamberlain of Cygnus Support,
sac@cygnus.com
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
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the Free Software Foundation; either version 3, or (at your option)
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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.
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, 51 Franklin Street - Fifth Floor, Boston, MA
02110-1301, USA. */
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#include "as.h"
#include "safe-ctype.h"
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#include "sb.h"
#include "macro.h"
/* The routines in this file handle macro definition and expansion.
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They are called by gas. */
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/* Internal functions. */
static int get_token (int, sb *, sb *);
static int getstring (int, sb *, sb *);
static int get_any_string (int, sb *, sb *);
static formal_entry *new_formal (void);
static void del_formal (formal_entry *);
static int do_formals (macro_entry *, int, sb *);
static int get_apost_token (int, sb *, sb *, int);
static int sub_actual (int, sb *, sb *, struct hash_control *, int, sb *, int);
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static const char *macro_expand_body
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
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(sb *, sb *, formal_entry *, struct hash_control *, const macro_entry *);
static const char *macro_expand (int, sb *, macro_entry *, sb *);
static void free_macro(macro_entry *);
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#define ISWHITE(x) ((x) == ' ' || (x) == '\t')
#define ISSEP(x) \
((x) == ' ' || (x) == '\t' || (x) == ',' || (x) == '"' || (x) == ';' \
|| (x) == ')' || (x) == '(' \
|| ((macro_alternate || macro_mri) && ((x) == '<' || (x) == '>')))
#define ISBASE(x) \
((x) == 'b' || (x) == 'B' \
|| (x) == 'q' || (x) == 'Q' \
|| (x) == 'h' || (x) == 'H' \
|| (x) == 'd' || (x) == 'D')
/* The macro hash table. */
struct hash_control *macro_hash;
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/* Whether any macros have been defined. */
int macro_defined;
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/* Whether we are in alternate syntax mode. */
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static int macro_alternate;
/* Whether we are in MRI mode. */
static int macro_mri;
/* Whether we should strip '@' characters. */
static int macro_strip_at;
/* Function to use to parse an expression. */
static int (*macro_expr) (const char *, int, sb *, int *);
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/* Number of macro expansions that have been done. */
static int macro_number;
/* Initialize macro processing. */
void
macro_init (int alternate, int mri, int strip_at,
int (*expr) (const char *, int, sb *, int *))
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{
macro_hash = hash_new ();
macro_defined = 0;
macro_alternate = alternate;
macro_mri = mri;
macro_strip_at = strip_at;
macro_expr = expr;
}
/* Switch in and out of alternate mode on the fly. */
void
macro_set_alternate (int alternate)
{
macro_alternate = alternate;
}
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/* Switch in and out of MRI mode on the fly. */
void
macro_mri_mode (int mri)
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{
macro_mri = mri;
}
/* Read input lines till we get to a TO string.
Increase nesting depth if we get a FROM string.
Put the results into sb at PTR.
FROM may be NULL (or will be ignored) if TO is "ENDR".
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Add a new input line to an sb using GET_LINE.
Return 1 on success, 0 on unexpected EOF. */
int
buffer_and_nest (const char *from, const char *to, sb *ptr,
int (*get_line) (sb *))
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{
int from_len;
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int to_len = strlen (to);
int depth = 1;
int line_start = ptr->len;
int more = get_line (ptr);
if (to_len == 4 && strcasecmp(to, "ENDR") == 0)
{
from = NULL;
from_len = 0;
}
else
from_len = strlen (from);
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while (more)
{
/* Try to find the first pseudo op on the line. */
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int i = line_start;
/* With normal syntax we can suck what we want till we get
to the dot. With the alternate, labels have to start in
the first column, since we can't tell what's a label and
what's a pseudoop. */
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if (! LABELS_WITHOUT_COLONS)
{
/* Skip leading whitespace. */
while (i < ptr->len && ISWHITE (ptr->ptr[i]))
i++;
}
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for (;;)
{
/* Skip over a label, if any. */
if (i >= ptr->len || ! is_name_beginner (ptr->ptr[i]))
break;
i++;
while (i < ptr->len && is_part_of_name (ptr->ptr[i]))
i++;
if (i < ptr->len && is_name_ender (ptr->ptr[i]))
i++;
if (LABELS_WITHOUT_COLONS)
break;
/* Skip whitespace. */
while (i < ptr->len && ISWHITE (ptr->ptr[i]))
i++;
/* Check for the colon. */
if (i >= ptr->len || ptr->ptr[i] != ':')
{
i = line_start;
break;
}
i++;
line_start = i;
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}
/* Skip trailing whitespace. */
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while (i < ptr->len && ISWHITE (ptr->ptr[i]))
i++;
if (i < ptr->len && (ptr->ptr[i] == '.'
|| NO_PSEUDO_DOT
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|| macro_mri))
{
if (! flag_m68k_mri && ptr->ptr[i] == '.')
i++;
if (from == NULL
&& strncasecmp (ptr->ptr + i, "IRPC", from_len = 4) != 0
&& strncasecmp (ptr->ptr + i, "IRP", from_len = 3) != 0
&& strncasecmp (ptr->ptr + i, "IREPC", from_len = 5) != 0
&& strncasecmp (ptr->ptr + i, "IREP", from_len = 4) != 0
&& strncasecmp (ptr->ptr + i, "REPT", from_len = 4) != 0
&& strncasecmp (ptr->ptr + i, "REP", from_len = 3) != 0)
from_len = 0;
if ((from != NULL
? strncasecmp (ptr->ptr + i, from, from_len) == 0
: from_len > 0)
&& (ptr->len == (i + from_len)
|| ! (is_part_of_name (ptr->ptr[i + from_len])
|| is_name_ender (ptr->ptr[i + from_len]))))
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depth++;
if (strncasecmp (ptr->ptr + i, to, to_len) == 0
&& (ptr->len == (i + to_len)
|| ! (is_part_of_name (ptr->ptr[i + to_len])
|| is_name_ender (ptr->ptr[i + to_len]))))
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{
depth--;
if (depth == 0)
{
/* Reset the string to not include the ending rune. */
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ptr->len = line_start;
break;
}
}
}
/* Add the original end-of-line char to the end and keep running. */
sb_add_char (ptr, more);
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line_start = ptr->len;
more = get_line (ptr);
}
/* Return 1 on success, 0 on unexpected EOF. */
return depth == 0;
}
/* Pick up a token. */
static int
get_token (int idx, sb *in, sb *name)
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{
if (idx < in->len
&& is_name_beginner (in->ptr[idx]))
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{
sb_add_char (name, in->ptr[idx++]);
while (idx < in->len
&& is_part_of_name (in->ptr[idx]))
{
sb_add_char (name, in->ptr[idx++]);
}
if (idx < in->len
&& is_name_ender (in->ptr[idx]))
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{
sb_add_char (name, in->ptr[idx++]);
}
}
/* Ignore trailing &. */
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if (macro_alternate && idx < in->len && in->ptr[idx] == '&')
idx++;
return idx;
}
/* Pick up a string. */
static int
getstring (int idx, sb *in, sb *acc)
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{
while (idx < in->len
&& (in->ptr[idx] == '"'
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|| (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (in->ptr[idx] == '\'' && macro_alternate)))
{
if (in->ptr[idx] == '<')
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{
int nest = 0;
idx++;
while ((in->ptr[idx] != '>' || nest)
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&& idx < in->len)
{
if (in->ptr[idx] == '!')
{
idx++;
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sb_add_char (acc, in->ptr[idx++]);
}
else
{
if (in->ptr[idx] == '>')
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nest--;
if (in->ptr[idx] == '<')
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nest++;
sb_add_char (acc, in->ptr[idx++]);
}
}
idx++;
}
else if (in->ptr[idx] == '"' || in->ptr[idx] == '\'')
{
char tchar = in->ptr[idx];
int escaped = 0;
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idx++;
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while (idx < in->len)
{
if (in->ptr[idx - 1] == '\\')
escaped ^= 1;
else
escaped = 0;
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if (macro_alternate && in->ptr[idx] == '!')
{
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idx ++;
sb_add_char (acc, in->ptr[idx]);
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idx ++;
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}
else if (escaped && in->ptr[idx] == tchar)
{
sb_add_char (acc, tchar);
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idx ++;
}
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else
{
if (in->ptr[idx] == tchar)
{
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idx ++;
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if (idx >= in->len || in->ptr[idx] != tchar)
break;
}
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sb_add_char (acc, in->ptr[idx]);
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idx ++;
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}
}
}
}
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return idx;
}
/* Fetch string from the input stream,
rules:
'Bxyx<whitespace> -> return 'Bxyza
%<expr> -> return string of decimal value of <expr>
"string" -> return string
(string) -> return (string-including-whitespaces)
xyx<whitespace> -> return xyz. */
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static int
get_any_string (int idx, sb *in, sb *out)
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{
sb_reset (out);
idx = sb_skip_white (idx, in);
if (idx < in->len)
{
if (in->len > idx + 2 && in->ptr[idx + 1] == '\'' && ISBASE (in->ptr[idx]))
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{
while (!ISSEP (in->ptr[idx]))
sb_add_char (out, in->ptr[idx++]);
}
else if (in->ptr[idx] == '%' && macro_alternate)
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{
int val;
char buf[20];
/* Turns the next expression into a string. */
/* xgettext: no-c-format */
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idx = (*macro_expr) (_("% operator needs absolute expression"),
idx + 1,
in,
&val);
sprintf (buf, "%d", val);
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sb_add_string (out, buf);
}
else if (in->ptr[idx] == '"'
|| (in->ptr[idx] == '<' && (macro_alternate || macro_mri))
|| (macro_alternate && in->ptr[idx] == '\''))
{
if (macro_alternate && ! macro_strip_at && in->ptr[idx] != '<')
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{
/* Keep the quotes. */
sb_add_char (out, '"');
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idx = getstring (idx, in, out);
sb_add_char (out, '"');
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}
else
{
idx = getstring (idx, in, out);
}
}
else
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{
char *br_buf = xmalloc(1);
char *in_br = br_buf;
*in_br = '\0';
while (idx < in->len
&& (*in_br
|| (in->ptr[idx] != ' '
&& in->ptr[idx] != '\t'))
&& in->ptr[idx] != ','
&& (in->ptr[idx] != '<'
|| (! macro_alternate && ! macro_mri)))
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{
char tchar = in->ptr[idx];
switch (tchar)
{
case '"':
case '\'':
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sb_add_char (out, in->ptr[idx++]);
while (idx < in->len
&& in->ptr[idx] != tchar)
sb_add_char (out, in->ptr[idx++]);
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if (idx == in->len)
return idx;
break;
case '(':
case '[':
if (in_br > br_buf)
--in_br;
else
{
br_buf = xmalloc(strlen(in_br) + 2);
strcpy(br_buf + 1, in_br);
free(in_br);
in_br = br_buf;
}
*in_br = tchar;
break;
case ')':
if (*in_br == '(')
++in_br;
break;
case ']':
if (*in_br == '[')
++in_br;
break;
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}
sb_add_char (out, tchar);
++idx;
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}
free(br_buf);
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}
}
return idx;
}
/* Allocate a new formal. */
static formal_entry *
new_formal (void)
{
formal_entry *formal;
formal = xmalloc (sizeof (formal_entry));
sb_new (&formal->name);
sb_new (&formal->def);
sb_new (&formal->actual);
formal->next = NULL;
formal->type = FORMAL_OPTIONAL;
return formal;
}
/* Free a formal. */
static void
del_formal (formal_entry *formal)
{
sb_kill (&formal->actual);
sb_kill (&formal->def);
sb_kill (&formal->name);
free (formal);
}
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/* Pick up the formal parameters of a macro definition. */
static int
do_formals (macro_entry *macro, int idx, sb *in)
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{
formal_entry **p = &macro->formals;
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
const char *name;
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idx = sb_skip_white (idx, in);
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while (idx < in->len)
{
formal_entry *formal = new_formal ();
int cidx;
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idx = get_token (idx, in, &formal->name);
if (formal->name.len == 0)
{
if (macro->formal_count)
--idx;
break;
}
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idx = sb_skip_white (idx, in);
/* This is a formal. */
name = sb_terminate (&formal->name);
if (! macro_mri
&& idx < in->len
&& in->ptr[idx] == ':'
&& (! is_name_beginner (':')
|| idx + 1 >= in->len
|| ! is_part_of_name (in->ptr[idx + 1])))
{
/* Got a qualifier. */
sb qual;
sb_new (&qual);
idx = get_token (sb_skip_white (idx + 1, in), in, &qual);
sb_terminate (&qual);
if (qual.len == 0)
as_bad_where (macro->file,
macro->line,
_("Missing parameter qualifier for `%s' in macro `%s'"),
name,
macro->name);
else if (strcmp (qual.ptr, "req") == 0)
formal->type = FORMAL_REQUIRED;
else if (strcmp (qual.ptr, "vararg") == 0)
formal->type = FORMAL_VARARG;
else
as_bad_where (macro->file,
macro->line,
_("`%s' is not a valid parameter qualifier for `%s' in macro `%s'"),
qual.ptr,
name,
macro->name);
sb_kill (&qual);
idx = sb_skip_white (idx, in);
}
if (idx < in->len && in->ptr[idx] == '=')
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{
/* Got a default. */
idx = get_any_string (idx + 1, in, &formal->def);
idx = sb_skip_white (idx, in);
if (formal->type == FORMAL_REQUIRED)
{
sb_reset (&formal->def);
as_warn_where (macro->file,
macro->line,
_("Pointless default value for required parameter `%s' in macro `%s'"),
name,
macro->name);
}
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}
/* Add to macro's hash table. */
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (! hash_find (macro->formal_hash, name))
hash_jam (macro->formal_hash, name, formal);
else
as_bad_where (macro->file,
macro->line,
_("A parameter named `%s' already exists for macro `%s'"),
name,
macro->name);
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formal->index = macro->formal_count++;
*p = formal;
p = &formal->next;
if (formal->type == FORMAL_VARARG)
break;
cidx = idx;
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idx = sb_skip_comma (idx, in);
if (idx != cidx && idx >= in->len)
{
idx = cidx;
break;
}
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}
if (macro_mri)
{
formal_entry *formal = new_formal ();
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/* Add a special NARG formal, which macro_expand will set to the
number of arguments. */
/* The same MRI assemblers which treat '@' characters also use
the name $NARG. At least until we find an exception. */
if (macro_strip_at)
name = "$NARG";
else
name = "NARG";
sb_add_string (&formal->name, name);
/* Add to macro's hash table. */
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (hash_find (macro->formal_hash, name))
as_bad_where (macro->file,
macro->line,
_("Reserved word `%s' used as parameter in macro `%s'"),
name,
macro->name);
1999-05-03 09:29:11 +02:00
hash_jam (macro->formal_hash, name, formal);
formal->index = NARG_INDEX;
*p = formal;
}
return idx;
}
/* Define a new macro. Returns NULL on success, otherwise returns an
error message. If NAMEP is not NULL, *NAMEP is set to the name of
the macro which was defined. */
const char *
define_macro (int idx, sb *in, sb *label,
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
int (*get_line) (sb *),
char *file, unsigned int line,
const char **namep)
1999-05-03 09:29:11 +02:00
{
macro_entry *macro;
sb name;
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
const char *error = NULL;
1999-05-03 09:29:11 +02:00
macro = (macro_entry *) xmalloc (sizeof (macro_entry));
sb_new (&macro->sub);
sb_new (&name);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
macro->file = file;
macro->line = line;
1999-05-03 09:29:11 +02:00
macro->formal_count = 0;
macro->formals = 0;
macro->formal_hash = hash_new ();
1999-05-03 09:29:11 +02:00
idx = sb_skip_white (idx, in);
if (! buffer_and_nest ("MACRO", "ENDM", &macro->sub, get_line))
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
error = _("unexpected end of file in macro `%s' definition");
1999-05-03 09:29:11 +02:00
if (label != NULL && label->len != 0)
{
sb_add_sb (&name, label);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
macro->name = sb_terminate (&name);
1999-05-03 09:29:11 +02:00
if (idx < in->len && in->ptr[idx] == '(')
{
/* It's the label: MACRO (formals,...) sort */
1999-05-03 09:29:11 +02:00
idx = do_formals (macro, idx + 1, in);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (idx < in->len && in->ptr[idx] == ')')
idx = sb_skip_white (idx + 1, in);
else if (!error)
error = _("missing `)' after formals in macro definition `%s'");
1999-05-03 09:29:11 +02:00
}
else
{
/* It's the label: MACRO formals,... sort */
1999-05-03 09:29:11 +02:00
idx = do_formals (macro, idx, in);
}
}
else
{
int cidx;
1999-05-03 09:29:11 +02:00
idx = get_token (idx, in, &name);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
macro->name = sb_terminate (&name);
if (name.len == 0)
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
error = _("Missing macro name");
cidx = sb_skip_white (idx, in);
idx = sb_skip_comma (cidx, in);
if (idx == cidx || idx < in->len)
idx = do_formals (macro, idx, in);
else
idx = cidx;
1999-05-03 09:29:11 +02:00
}
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (!error && idx < in->len)
error = _("Bad parameter list for macro `%s'");
1999-05-03 09:29:11 +02:00
/* And stick it in the macro hash table. */
1999-05-03 09:29:11 +02:00
for (idx = 0; idx < name.len; idx++)
name.ptr[idx] = TOLOWER (name.ptr[idx]);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (hash_find (macro_hash, macro->name))
error = _("Macro `%s' was already defined");
if (!error)
error = hash_jam (macro_hash, macro->name, (void *) macro);
1999-05-03 09:29:11 +02:00
if (namep != NULL)
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
*namep = macro->name;
if (!error)
macro_defined = 1;
else
free_macro (macro);
1999-05-03 09:29:11 +02:00
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
return error;
1999-05-03 09:29:11 +02:00
}
/* Scan a token, and then skip KIND. */
static int
get_apost_token (int idx, sb *in, sb *name, int kind)
1999-05-03 09:29:11 +02:00
{
idx = get_token (idx, in, name);
if (idx < in->len
&& in->ptr[idx] == kind
&& (! macro_mri || macro_strip_at)
&& (! macro_strip_at || kind == '@'))
idx++;
return idx;
}
/* Substitute the actual value for a formal parameter. */
static int
sub_actual (int start, sb *in, sb *t, struct hash_control *formal_hash,
int kind, sb *out, int copyifnotthere)
1999-05-03 09:29:11 +02:00
{
int src;
formal_entry *ptr;
src = get_apost_token (start, in, t, kind);
/* See if it's in the macro's hash table, unless this is
macro_strip_at and kind is '@' and the token did not end in '@'. */
if (macro_strip_at
&& kind == '@'
&& (src == start || in->ptr[src - 1] != '@'))
ptr = NULL;
else
ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (t));
if (ptr)
{
if (ptr->actual.len)
{
sb_add_sb (out, &ptr->actual);
}
else
{
sb_add_sb (out, &ptr->def);
}
}
else if (kind == '&')
{
/* Doing this permits people to use & in macro bodies. */
sb_add_char (out, '&');
sb_add_sb (out, t);
1999-05-03 09:29:11 +02:00
}
else if (copyifnotthere)
{
sb_add_sb (out, t);
}
else
1999-05-03 09:29:11 +02:00
{
sb_add_char (out, '\\');
sb_add_sb (out, t);
}
return src;
}
/* Expand the body of a macro. */
static const char *
macro_expand_body (sb *in, sb *out, formal_entry *formals,
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
struct hash_control *formal_hash, const macro_entry *macro)
1999-05-03 09:29:11 +02:00
{
sb t;
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
int src = 0, inquote = 0, macro_line = 0;
1999-05-03 09:29:11 +02:00
formal_entry *loclist = NULL;
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
const char *err = NULL;
1999-05-03 09:29:11 +02:00
sb_new (&t);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
while (src < in->len && !err)
1999-05-03 09:29:11 +02:00
{
if (in->ptr[src] == '&')
{
sb_reset (&t);
if (macro_mri)
{
if (src + 1 < in->len && in->ptr[src + 1] == '&')
src = sub_actual (src + 2, in, &t, formal_hash, '\'', out, 1);
else
sb_add_char (out, in->ptr[src++]);
}
else
{
/* FIXME: Why do we do this? */
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
/* At least in alternate mode this seems correct; without this
one can't append a literal to a parameter. */
1999-05-03 09:29:11 +02:00
src = sub_actual (src + 1, in, &t, formal_hash, '&', out, 0);
}
}
else if (in->ptr[src] == '\\')
{
src++;
if (src < in->len && in->ptr[src] == '(')
1999-05-03 09:29:11 +02:00
{
/* Sub in till the next ')' literally. */
1999-05-03 09:29:11 +02:00
src++;
while (src < in->len && in->ptr[src] != ')')
{
sb_add_char (out, in->ptr[src++]);
}
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (src < in->len)
1999-05-03 09:29:11 +02:00
src++;
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
else if (!macro)
err = _("missing `)'");
1999-05-03 09:29:11 +02:00
else
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
as_bad_where (macro->file, macro->line + macro_line, _("missing `)'"));
1999-05-03 09:29:11 +02:00
}
else if (src < in->len && in->ptr[src] == '@')
1999-05-03 09:29:11 +02:00
{
/* Sub in the macro invocation number. */
1999-05-03 09:29:11 +02:00
char buffer[10];
src++;
sprintf (buffer, "%d", macro_number);
1999-05-03 09:29:11 +02:00
sb_add_string (out, buffer);
}
else if (src < in->len && in->ptr[src] == '&')
1999-05-03 09:29:11 +02:00
{
/* This is a preprocessor variable name, we don't do them
here. */
1999-05-03 09:29:11 +02:00
sb_add_char (out, '\\');
sb_add_char (out, '&');
src++;
}
else if (macro_mri && src < in->len && ISALNUM (in->ptr[src]))
1999-05-03 09:29:11 +02:00
{
int ind;
formal_entry *f;
if (ISDIGIT (in->ptr[src]))
1999-05-03 09:29:11 +02:00
ind = in->ptr[src] - '0';
else if (ISUPPER (in->ptr[src]))
1999-05-03 09:29:11 +02:00
ind = in->ptr[src] - 'A' + 10;
else
ind = in->ptr[src] - 'a' + 10;
++src;
for (f = formals; f != NULL; f = f->next)
{
if (f->index == ind - 1)
{
if (f->actual.len != 0)
sb_add_sb (out, &f->actual);
else
sb_add_sb (out, &f->def);
break;
}
}
}
else
{
sb_reset (&t);
src = sub_actual (src, in, &t, formal_hash, '\'', out, 0);
}
}
else if ((macro_alternate || macro_mri)
&& is_name_beginner (in->ptr[src])
1999-05-03 09:29:11 +02:00
&& (! inquote
|| ! macro_strip_at
|| (src > 0 && in->ptr[src - 1] == '@')))
{
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (! macro
1999-05-03 09:29:11 +02:00
|| src + 5 >= in->len
|| strncasecmp (in->ptr + src, "LOCAL", 5) != 0
|| ! ISWHITE (in->ptr[src + 5]))
{
sb_reset (&t);
src = sub_actual (src, in, &t, formal_hash,
(macro_strip_at && inquote) ? '@' : '\'',
out, 1);
}
else
{
src = sb_skip_white (src + 5, in);
2002-12-02 16:42:15 +01:00
while (in->ptr[src] != '\n')
1999-05-03 09:29:11 +02:00
{
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
const char *name;
formal_entry *f = new_formal ();
1999-05-03 09:29:11 +02:00
src = get_token (src, in, &f->name);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
name = sb_terminate (&f->name);
if (! hash_find (formal_hash, name))
{
static int loccnt;
char buf[20];
1999-05-03 09:29:11 +02:00
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
f->index = LOCAL_INDEX;
f->next = loclist;
loclist = f;
sprintf (buf, IS_ELF ? ".LL%04x" : "LL%04x", ++loccnt);
sb_add_string (&f->actual, buf);
err = hash_jam (formal_hash, name, f);
if (err != NULL)
break;
}
else
{
as_bad_where (macro->file,
macro->line + macro_line,
_("`%s' was already used as parameter (or another local) name"),
name);
del_formal (f);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
}
1999-05-03 09:29:11 +02:00
src = sb_skip_comma (src, in);
}
}
}
else if (in->ptr[src] == '"'
|| (macro_mri && in->ptr[src] == '\''))
{
inquote = !inquote;
sb_add_char (out, in->ptr[src++]);
}
else if (in->ptr[src] == '@' && macro_strip_at)
{
++src;
if (src < in->len
&& in->ptr[src] == '@')
{
sb_add_char (out, '@');
++src;
}
}
else if (macro_mri
&& in->ptr[src] == '='
&& src + 1 < in->len
&& in->ptr[src + 1] == '=')
{
formal_entry *ptr;
sb_reset (&t);
src = get_token (src + 2, in, &t);
ptr = (formal_entry *) hash_find (formal_hash, sb_terminate (&t));
if (ptr == NULL)
{
/* FIXME: We should really return a warning string here,
but we can't, because the == might be in the MRI
comment field, and, since the nature of the MRI
comment field depends upon the exact instruction
being used, we don't have enough information here to
figure out whether it is or not. Instead, we leave
the == in place, which should cause a syntax error if
it is not in a comment. */
sb_add_char (out, '=');
sb_add_char (out, '=');
sb_add_sb (out, &t);
}
else
{
if (ptr->actual.len)
{
sb_add_string (out, "-1");
}
else
{
sb_add_char (out, '0');
}
}
}
else
{
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (in->ptr[src] == '\n')
++macro_line;
1999-05-03 09:29:11 +02:00
sb_add_char (out, in->ptr[src++]);
}
}
sb_kill (&t);
while (loclist != NULL)
{
formal_entry *f;
const char *name;
1999-05-03 09:29:11 +02:00
f = loclist->next;
name = sb_terminate (&loclist->name);
hash_delete (formal_hash, name, f == NULL);
del_formal (loclist);
1999-05-03 09:29:11 +02:00
loclist = f;
}
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
return err;
1999-05-03 09:29:11 +02:00
}
/* Assign values to the formal parameters of a macro, and expand the
body. */
static const char *
macro_expand (int idx, sb *in, macro_entry *m, sb *out)
1999-05-03 09:29:11 +02:00
{
sb t;
formal_entry *ptr;
formal_entry *f;
int is_keyword = 0;
int narg = 0;
const char *err = NULL;
1999-05-03 09:29:11 +02:00
sb_new (&t);
/* Reset any old value the actuals may have. */
1999-05-03 09:29:11 +02:00
for (f = m->formals; f; f = f->next)
sb_reset (&f->actual);
1999-05-03 09:29:11 +02:00
f = m->formals;
while (f != NULL && f->index < 0)
f = f->next;
if (macro_mri)
{
/* The macro may be called with an optional qualifier, which may
be referred to in the macro body as \0. */
if (idx < in->len && in->ptr[idx] == '.')
{
/* The Microtec assembler ignores this if followed by a white space.
(Macro invocation with empty extension) */
idx++;
if ( idx < in->len
&& in->ptr[idx] != ' '
&& in->ptr[idx] != '\t')
{
formal_entry *n = new_formal ();
n->index = QUAL_INDEX;
n->next = m->formals;
m->formals = n;
idx = get_any_string (idx, in, &n->actual);
}
}
}
1999-05-03 09:29:11 +02:00
/* Peel off the actuals and store them away in the hash tables' actuals. */
1999-05-03 09:29:11 +02:00
idx = sb_skip_white (idx, in);
2002-12-02 16:42:15 +01:00
while (idx < in->len)
1999-05-03 09:29:11 +02:00
{
int scan;
/* Look and see if it's a positional or keyword arg. */
1999-05-03 09:29:11 +02:00
scan = idx;
while (scan < in->len
&& !ISSEP (in->ptr[scan])
&& !(macro_mri && in->ptr[scan] == '\'')
&& (!macro_alternate && in->ptr[scan] != '='))
scan++;
if (scan < in->len && !macro_alternate && in->ptr[scan] == '=')
{
is_keyword = 1;
/* It's OK to go from positional to keyword. */
/* This is a keyword arg, fetch the formal name and
then the actual stuff. */
1999-05-03 09:29:11 +02:00
sb_reset (&t);
idx = get_token (idx, in, &t);
if (in->ptr[idx] != '=')
{
err = _("confusion in formal parameters");
break;
}
1999-05-03 09:29:11 +02:00
/* Lookup the formal in the macro's list. */
1999-05-03 09:29:11 +02:00
ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t));
if (!ptr)
as_bad (_("Parameter named `%s' does not exist for macro `%s'"),
t.ptr,
m->name);
1999-05-03 09:29:11 +02:00
else
{
/* Insert this value into the right place. */
if (ptr->actual.len)
{
as_warn (_("Value for parameter `%s' of macro `%s' was already specified"),
ptr->name.ptr,
m->name);
sb_reset (&ptr->actual);
}
idx = get_any_string (idx + 1, in, &ptr->actual);
1999-05-03 09:29:11 +02:00
if (ptr->actual.len > 0)
++narg;
}
}
else
{
if (is_keyword)
{
err = _("can't mix positional and keyword arguments");
break;
}
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if (!f)
{
formal_entry **pf;
int c;
if (!macro_mri)
{
err = _("too many positional arguments");
break;
}
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f = new_formal ();
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c = -1;
for (pf = &m->formals; *pf != NULL; pf = &(*pf)->next)
if ((*pf)->index >= c)
c = (*pf)->index + 1;
if (c == -1)
c = 0;
*pf = f;
f->index = c;
}
if (f->type != FORMAL_VARARG)
idx = get_any_string (idx, in, &f->actual);
else
{
sb_add_buffer (&f->actual, in->ptr + idx, in->len - idx);
idx = in->len;
}
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if (f->actual.len > 0)
++narg;
do
{
f = f->next;
}
while (f != NULL && f->index < 0);
}
if (! macro_mri)
idx = sb_skip_comma (idx, in);
else
{
if (in->ptr[idx] == ',')
++idx;
if (ISWHITE (in->ptr[idx]))
break;
}
}
if (! err)
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{
for (ptr = m->formals; ptr; ptr = ptr->next)
{
if (ptr->type == FORMAL_REQUIRED && ptr->actual.len == 0)
as_bad (_("Missing value for required parameter `%s' of macro `%s'"),
ptr->name.ptr,
m->name);
}
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if (macro_mri)
{
char buffer[20];
sb_reset (&t);
sb_add_string (&t, macro_strip_at ? "$NARG" : "NARG");
ptr = (formal_entry *) hash_find (m->formal_hash, sb_terminate (&t));
sprintf (buffer, "%d", narg);
sb_add_string (&ptr->actual, buffer);
}
err = macro_expand_body (&m->sub, out, m->formals, m->formal_hash, m);
}
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/* Discard any unnamed formal arguments. */
if (macro_mri)
{
formal_entry **pf;
pf = &m->formals;
while (*pf != NULL)
{
if ((*pf)->name.len != 0)
pf = &(*pf)->next;
else
{
f = (*pf)->next;
del_formal (*pf);
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*pf = f;
}
}
}
sb_kill (&t);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
if (!err)
macro_number++;
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gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
return err;
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}
/* Check for a macro. If one is found, put the expansion into
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*EXPAND. Return 1 if a macro is found, 0 otherwise. */
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int
check_macro (const char *line, sb *expand,
const char **error, macro_entry **info)
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{
const char *s;
char *copy, *cs;
macro_entry *macro;
sb line_sb;
if (! is_name_beginner (*line)
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&& (! macro_mri || *line != '.'))
return 0;
s = line + 1;
while (is_part_of_name (*s))
++s;
if (is_name_ender (*s))
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++s;
copy = (char *) alloca (s - line + 1);
memcpy (copy, line, s - line);
copy[s - line] = '\0';
for (cs = copy; *cs != '\0'; cs++)
*cs = TOLOWER (*cs);
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macro = (macro_entry *) hash_find (macro_hash, copy);
if (macro == NULL)
return 0;
/* Wrap the line up in an sb. */
sb_new (&line_sb);
while (*s != '\0' && *s != '\n' && *s != '\r')
sb_add_char (&line_sb, *s++);
sb_new (expand);
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*error = macro_expand (0, &line_sb, macro, expand);
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sb_kill (&line_sb);
/* Export the macro information if requested. */
if (info)
*info = macro;
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return 1;
}
/* Free the memory allocated to a macro. */
static void
free_macro(macro_entry *macro)
{
formal_entry *formal;
for (formal = macro->formals; formal; )
{
formal_entry *f;
f = formal;
formal = formal->next;
del_formal (f);
}
hash_die (macro->formal_hash);
sb_kill (&macro->sub);
free (macro);
}
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/* Delete a macro. */
void
delete_macro (const char *name)
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{
char *copy;
size_t i, len;
macro_entry *macro;
len = strlen (name);
copy = (char *) alloca (len + 1);
for (i = 0; i < len; ++i)
copy[i] = TOLOWER (name[i]);
copy[i] = '\0';
/* We can only ask hash_delete to free memory if we are deleting
macros in reverse order to their definition.
So just clear out the entry. */
if ((macro = hash_find (macro_hash, copy)) != NULL)
{
hash_jam (macro_hash, copy, NULL);
free_macro (macro);
}
else
as_warn (_("Attempt to purge non-existant macro `%s'"), copy);
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}
/* Handle the MRI IRP and IRPC pseudo-ops. These are handled as a
combined macro definition and execution. This returns NULL on
success, or an error message otherwise. */
const char *
expand_irp (int irpc, int idx, sb *in, sb *out, int (*get_line) (sb *))
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{
sb sub;
formal_entry f;
struct hash_control *h;
const char *err;
idx = sb_skip_white (idx, in);
sb_new (&sub);
if (! buffer_and_nest (NULL, "ENDR", &sub, get_line))
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return _("unexpected end of file in irp or irpc");
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sb_new (&f.name);
sb_new (&f.def);
sb_new (&f.actual);
idx = get_token (idx, in, &f.name);
if (f.name.len == 0)
return _("missing model parameter");
h = hash_new ();
err = hash_jam (h, sb_terminate (&f.name), &f);
if (err != NULL)
return err;
f.index = 1;
f.next = NULL;
f.type = FORMAL_OPTIONAL;
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sb_reset (out);
idx = sb_skip_comma (idx, in);
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if (idx >= in->len)
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{
/* Expand once with a null string. */
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err = macro_expand_body (&sub, out, &f, h, 0);
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}
else
{
bfd_boolean in_quotes = FALSE;
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if (irpc && in->ptr[idx] == '"')
{
in_quotes = TRUE;
++idx;
}
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while (idx < in->len)
1999-05-03 09:29:11 +02:00
{
if (!irpc)
idx = get_any_string (idx, in, &f.actual);
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else
{
if (in->ptr[idx] == '"')
{
int nxt;
if (irpc)
in_quotes = ! in_quotes;
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nxt = sb_skip_white (idx + 1, in);
2002-12-02 16:42:15 +01:00
if (nxt >= in->len)
1999-05-03 09:29:11 +02:00
{
idx = nxt;
break;
}
}
sb_reset (&f.actual);
sb_add_char (&f.actual, in->ptr[idx]);
++idx;
}
2002-12-02 16:42:15 +01:00
err = macro_expand_body (&sub, out, &f, h, 0);
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if (err != NULL)
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
break;
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if (!irpc)
idx = sb_skip_comma (idx, in);
else if (! in_quotes)
1999-05-03 09:29:11 +02:00
idx = sb_skip_white (idx, in);
}
}
hash_die (h);
sb_kill (&f.actual);
sb_kill (&f.def);
sb_kill (&f.name);
1999-05-03 09:29:11 +02:00
sb_kill (&sub);
gas/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * macro.c (macro_expand_body): Replace locals indicator parameters with actual macro_entry. New local variables macro_line and err. Don't return when encountering an error, just record the fact. Detect local symbol name colliding with parameter. Track line number inside of macro expansion. (do_formals): Move local variable name to wider scope. Check parameter of the same name doesn't already exist. In MRI mode, also check it doesn't collide with the argument count pseudo-parameter). (define_macro): Add file and line number parameters. Remove local variable namestr. New local variable error. Initialize macro_entry members file, line, and name. Don't return when encountering an error, just record the fact. Use %s in some diagnostics for read.c to insert the macro name. Free macro_entry on error. (macro_expand): Pass macro_entry to macro_epand_body. Don't return when encountering an error, just record the fact. (expand_irp): Don't return when encountering an error, just record the fact. * macro.h (macro_struct): New members name, file, and line. (define_macro): Add file and line number parameters. * read.c (s_macro): Pass file and line to define_macro. Tag warning regarding pseudo-op redefinition with the file/line that macro definition started at. gas/testsuite/ 2005-04-25 Jan Beulich <jbeulich@novell.com> * gas/macros/badarg.s: Add tests for collisions between/among macro parameters and local symbols. * gas/macros/badarg.l: Adjust.
2005-04-25 08:43:46 +02:00
return err;
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}