/* Generic stabs parsing for gas.
- Copyright (C) 1989, 90, 91, 93, 94, 95, 96, 97, 1998
+ Copyright 1989, 1990, 1991, 1993, 1995, 1996, 1997, 1998, 2000, 2001
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
+02111-1307, USA. */
#include "as.h"
#include "obstack.h"
#include "ecoff.h"
/* We need this, despite the apparent object format dependency, since
- it defines stab types, which all object formats can use now. */
+ it defines stab types, which all object formats can use now. */
#include "aout/stab_gnu.h"
+/* Holds whether the assembler is generating stabs line debugging
+ information or not. Potentially used by md_cleanup function. */
+
+int outputting_stabs_line_debug = 0;
+
static void s_stab_generic PARAMS ((int, char *, char *));
static void generate_asm_file PARAMS ((int, char *));
}
if (length > 0)
- { /* Ordinary case. */
+ { /* Ordinary case. */
p = frag_more (length + 1);
strcpy (p, string);
#define OBJ_PROCESS_STAB(SEG,W,S,T,O,D) aout_process_stab(W,S,T,O,D)
#endif
-static void aout_process_stab PARAMS ((int, const char *, int, int, int));
-
-static void
+/* Here instead of obj-aout.c because other formats use it too. */
+void
aout_process_stab (what, string, type, other, desc)
int what;
const char *string;
if (what == 's' || what == 'n')
{
/* Pick up the value from the input line. */
- symbol->sy_frag = &zero_address_frag;
+ symbol_set_frag (symbol, &zero_address_frag);
pseudo_set (symbol);
}
else
{
/* .stabd sets the name to NULL. Why? */
S_SET_NAME (symbol, NULL);
- symbol->sy_frag = frag_now;
+ symbol_set_frag (symbol, frag_now);
S_SET_VALUE (symbol, (valueT) frag_now_fix ());
}
#endif
/* This can handle different kinds of stabs (s,n,d) and different
- kinds of stab sections. */
+ kinds of stab sections. */
-static void
+static void
s_stab_generic (what, stab_secname, stabstr_secname)
int what;
char *stab_secname;
char *stabstr_secname;
{
long longint;
- char *string;
+ char *string, *saved_string_obstack_end;
int type;
int other;
int desc;
'd' indicating which type of .stab this is. */
if (what != 's')
- string = "";
+ {
+ string = "";
+ saved_string_obstack_end = 0;
+ }
else
{
int length;
string = demand_copy_C_string (&length);
+ /* FIXME: We should probably find some other temporary storage
+ for string, rather than leaking memory if someone else
+ happens to use the notes obstack. */
+ saved_string_obstack_end = notes.next_free;
SKIP_WHITESPACE ();
if (*input_line_pointer == ',')
input_line_pointer++;
stroff = get_stab_string_offset (string, stabstr_secname);
if (what == 's')
{
- /* release the string */
- obstack_free (¬es, string);
+ /* Release the string, if nobody else has used the obstack. */
+ if (saved_string_obstack_end == notes.next_free)
+ obstack_free (¬es, string);
}
/* At least for now, stabs in a special stab section are always
demand_empty_rest_of_line ();
}
-/* Regular stab directive. */
+/* Regular stab directive. */
void
s_stab (what)
s_stab_generic (what, STAB_SECTION_NAME, STAB_STRING_SECTION_NAME);
}
-/* "Extended stabs", used in Solaris only now. */
+/* "Extended stabs", used in Solaris only now. */
void
s_xstab (what)
/* Frob invented at RMS' request. Set the n_desc of a symbol. */
-void
+void
s_desc (ignore)
- int ignore;
+ int ignore ATTRIBUTE_UNUSED;
{
char *name;
char c;
static char *last_file;
static int label_count;
char *hold;
- char buf[100];
char sym[30];
+ char *buf;
+ char *tmp = file;
+ char *endp = file + strlen (file);
+ char *bufp = buf;
+
+ if (last_file != NULL
+ && strcmp (last_file, file) == 0)
+ return;
/* Rather than try to do this in some efficient fashion, we just
generate a string and then parse it again. That lets us use the
existing stabs hook, which expect to see a string, rather than
inventing new ones. */
-
hold = input_line_pointer;
- if (last_file == NULL
- || strcmp (last_file, file) != 0)
+ sprintf (sym, "%sF%d", FAKE_LABEL_NAME, label_count);
+ ++label_count;
+
+ /* Allocate enough space for the file name (possibly extended with
+ doubled up backslashes), the symbol name, and the other characters
+ that make up a stabs file directive. */
+ bufp = buf = xmalloc (2 * strlen (file) + strlen (sym) + 12);
+
+ *bufp++ = '"';
+
+ while (tmp < endp)
{
- sprintf (sym, "%sF%d", FAKE_LABEL_NAME, label_count);
- ++label_count;
+ char *bslash = strchr (tmp, '\\');
+ size_t len = (bslash) ? (size_t) (bslash - tmp + 1) : strlen (tmp);
- sprintf (buf, "\"%s\",%d,0,0,%s\n", file, type, sym);
- input_line_pointer = buf;
- s_stab ('s');
- colon (sym);
+ /* Double all backslashes, since demand_copy_C_string (used by
+ s_stab to extract the part in quotes) will try to replace them as
+ escape sequences. backslash may appear in a filespec. */
+ strncpy (bufp, tmp, len);
+
+ tmp += len;
+ bufp += len;
- if (last_file != NULL)
- free (last_file);
- last_file = xstrdup (file);
+ if (bslash != NULL)
+ *bufp++ = '\\';
}
+ sprintf (bufp, "\",%d,0,0,%s\n", type, sym);
+
+ input_line_pointer = buf;
+ s_stab ('s');
+ colon (sym);
+
+ if (last_file != NULL)
+ free (last_file);
+ last_file = xstrdup (file);
+
+ free (buf);
+
input_line_pointer = hold;
}
char *buf;
char sym[30];
+ /* Let the world know that we are in the middle of generating a
+ piece of stabs line debugging information. */
+ outputting_stabs_line_debug = 1;
+
/* Rather than try to do this in some efficient fashion, we just
generate a string and then parse it again. That lets us use the
existing stabs hook, which expect to see a string, rather than
colon (sym);
input_line_pointer = hold;
+ outputting_stabs_line_debug = 0;
}
/* Emit a function stab.
void
stabs_generate_asm_endfunc (funcname, startlabname)
- const char *funcname;
+ const char *funcname ATTRIBUTE_UNUSED;
const char *startlabname;
{
static int label_count;
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