#include "obstack.h"
#include "ecoff.h"
#include "dw2gencfi.h"
+#include "wchar.h"
#ifndef TC_START_LABEL
#define TC_START_LABEL(x,y,z) (x == ':')
macro_set_alternate (on);
}
+/* Read a symbol name from input_line_pointer.
+
+ Stores the symbol name in a buffer and returns a pointer to this buffer.
+ The buffer is xalloc'ed. It is the caller's responsibility to free
+ this buffer.
+
+ The name is not left in the i_l_p buffer as it may need processing
+ to handle escape characters.
+
+ Advances i_l_p to the next non-whitespace character.
+
+ If a symbol name could not be read, the routine issues an error
+ messages, skips to the end of the line and returns NULL. */
+
+static char *
+read_symbol_name (void)
+{
+ char * name;
+ char * start;
+ char c;
+
+ c = *input_line_pointer++;
+
+ if (c == '"')
+ {
+#define SYM_NAME_CHUNK_LEN 128
+ ptrdiff_t len = SYM_NAME_CHUNK_LEN;
+ char * name_end;
+ unsigned int C;
+
+ start = name = xmalloc (len + 1);
+
+ name_end = name + SYM_NAME_CHUNK_LEN;
+
+ while (is_a_char (C = next_char_of_string ()))
+ {
+ if (name >= name_end)
+ {
+ ptrdiff_t sofar;
+
+ sofar = name - start;
+ len += SYM_NAME_CHUNK_LEN;
+ start = xrealloc (start, len + 1);
+ name_end = start + len;
+ name = start + sofar;
+ }
+
+ *name++ = (char) C;
+ }
+ *name = 0;
+
+ /* Since quoted symbol names can contain non-ASCII characters,
+ check the string and warn if it cannot be recognised by the
+ current character set. */
+ if (mbstowcs (NULL, name, len) == (size_t) -1)
+ as_warn (_("symbol name not recognised in the current locale"));
+ }
+ else if (is_name_beginner (c) || c == '\001')
+ {
+ ptrdiff_t len;
+
+ name = input_line_pointer - 1;
+
+ /* We accept \001 in a name in case this is
+ being called with a constructed string. */
+ while (is_part_of_name (c = *input_line_pointer++)
+ || c == '\001')
+ ;
+
+ len = (input_line_pointer - name) - 1;
+ start = xmalloc (len + 1);
+
+ memcpy (start, name, len);
+ start[len] = 0;
+
+ /* Skip a name ender char if one is present. */
+ if (! is_name_ender (c))
+ --input_line_pointer;
+ }
+ else
+ name = start = NULL;
+
+ if (name == start)
+ {
+ as_bad (_("expected symbol name"));
+ ignore_rest_of_line ();
+ return NULL;
+ }
+
+ SKIP_WHITESPACE ();
+
+ return start;
+}
+
+
symbolS *
s_comm_internal (int param,
symbolS *(*comm_parse_extra) (int, symbolS *, addressT))
{
char *name;
- char c;
- char *p;
offsetT temp, size;
symbolS *symbolP = NULL;
char *stop = NULL;
if (flag_mri)
stop = mri_comment_field (&stopc);
- name = input_line_pointer;
- c = get_symbol_end ();
- /* Just after name is now '\0'. */
- p = input_line_pointer;
- *p = c;
-
- if (name == p)
- {
- as_bad (_("expected symbol name"));
- ignore_rest_of_line ();
- goto out;
- }
-
- SKIP_WHITESPACE ();
+ if ((name = read_symbol_name ()) == NULL)
+ goto out;
/* Accept an optional comma after the name. The comma used to be
required, but Irix 5 cc does not generate it for .lcomm. */
goto out;
}
- *p = 0;
symbolP = symbol_find_or_make (name);
if ((S_IS_DEFINED (symbolP) || symbol_equated_p (symbolP))
&& !S_IS_COMMON (symbolP))
{
symbolP = NULL;
as_bad (_("symbol `%s' is already defined"), name);
- *p = c;
ignore_rest_of_line ();
goto out;
}
as_warn (_("size of \"%s\" is already %ld; not changing to %ld"),
name, (long) size, (long) temp);
- *p = c;
if (comm_parse_extra != NULL)
symbolP = (*comm_parse_extra) (param, symbolP, size);
else
out:
if (flag_mri)
mri_comment_end (stop, stopc);
+ if (name != NULL)
+ free (name);
return symbolP;
}
do
{
- name = input_line_pointer;
- c = get_symbol_end ();
+ if ((name = read_symbol_name ()) == NULL)
+ return;
+
symbolP = symbol_find_or_make (name);
S_SET_EXTERNAL (symbolP);
- *input_line_pointer = c;
SKIP_WHITESPACE ();
c = *input_line_pointer;
if (c == ',')
if (is_end_of_line[(unsigned char) *input_line_pointer])
c = '\n';
}
+
+ free (name);
}
while (c == ',');
s_lsym (int ignore ATTRIBUTE_UNUSED)
{
char *name;
- char c;
- char *p;
expressionS exp;
symbolS *symbolP;
/* We permit ANY defined expression: BSD4.2 demands constants. */
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
-
- if (name == p)
- {
- as_bad (_("expected symbol name"));
- ignore_rest_of_line ();
- return;
- }
-
- SKIP_WHITESPACE ();
+ if ((name = read_symbol_name ()) == NULL)
+ return;
if (*input_line_pointer != ',')
{
- *p = 0;
as_bad (_("expected comma after \"%s\""), name);
- *p = c;
- ignore_rest_of_line ();
- return;
+ goto err_out;
}
input_line_pointer++;
&& exp.X_op != O_register)
{
as_bad (_("bad expression"));
- ignore_rest_of_line ();
- return;
+ goto err_out;
}
- *p = 0;
symbolP = symbol_find_or_make (name);
if (S_GET_SEGMENT (symbolP) == undefined_section)
as_bad (_("symbol `%s' is already defined"), name);
}
- *p = c;
demand_empty_rest_of_line ();
+ free (name);
+ return;
+
+ err_out:
+ ignore_rest_of_line ();
+ free (name);
+ return;
}
/* Read a line into an sb. Returns the character that ended the line
s_set (int equiv)
{
char *name;
- char delim;
- char *end_name;
/* Especial apologies for the random logic:
this just grew, and could be parsed much more simply!
Dean in haste. */
- name = input_line_pointer;
- delim = get_symbol_end ();
- end_name = input_line_pointer;
- *end_name = delim;
-
- if (name == end_name)
- {
- as_bad (_("expected symbol name"));
- ignore_rest_of_line ();
- return;
- }
-
- SKIP_WHITESPACE ();
+ if ((name = read_symbol_name ()) == NULL)
+ return;
if (*input_line_pointer != ',')
{
- *end_name = 0;
as_bad (_("expected comma after \"%s\""), name);
- *end_name = delim;
ignore_rest_of_line ();
+ free (name);
return;
}
input_line_pointer++;
- *end_name = 0;
-
assign_symbol (name, equiv);
- *end_name = delim;
-
demand_empty_rest_of_line ();
+ free (name);
}
void
s_weakref (int ignore ATTRIBUTE_UNUSED)
{
char *name;
- char delim;
- char *end_name;
symbolS *symbolP;
symbolS *symbolP2;
expressionS exp;
- name = input_line_pointer;
- delim = get_symbol_end ();
- end_name = input_line_pointer;
-
- if (name == end_name)
- {
- as_bad (_("expected symbol name"));
- *end_name = delim;
- ignore_rest_of_line ();
- return;
- }
+ if ((name = read_symbol_name ()) == NULL)
+ return;
symbolP = symbol_find_or_make (name);
if (!S_IS_VOLATILE (symbolP))
{
as_bad (_("symbol `%s' is already defined"), name);
- *end_name = delim;
- ignore_rest_of_line ();
- return;
+ goto err_out;
}
symbolP = symbol_clone (symbolP, 1);
S_CLEAR_VOLATILE (symbolP);
}
- *end_name = delim;
-
SKIP_WHITESPACE ();
if (*input_line_pointer != ',')
{
- *end_name = 0;
as_bad (_("expected comma after \"%s\""), name);
- *end_name = delim;
- ignore_rest_of_line ();
- return;
+ goto err_out;
}
input_line_pointer++;
SKIP_WHITESPACE ();
+ free (name);
- name = input_line_pointer;
- delim = get_symbol_end ();
- end_name = input_line_pointer;
-
- if (name == end_name)
- {
- as_bad (_("expected symbol name"));
- ignore_rest_of_line ();
- return;
- }
+ if ((name = read_symbol_name ()) == NULL)
+ return;
if ((symbolP2 = symbol_find_noref (name, 1)) == NULL
&& (symbolP2 = md_undefined_symbol (name)) == NULL)
while (symp != symbolP)
{
char *old_loop = loop;
+
symp = symbol_get_value_expression (symp)->X_add_symbol;
loop = concat (loop, " => ", S_GET_NAME (symp),
(const char *) NULL);
S_GET_NAME (symbolP), loop);
free (loop);
-
- *end_name = delim;
+ free (name);
ignore_rest_of_line ();
return;
}
/* symbolP2 = symp; */
}
- *end_name = delim;
-
memset (&exp, 0, sizeof (exp));
exp.X_op = O_symbol;
exp.X_add_symbol = symbolP2;
S_SET_WEAKREFR (symbolP);
demand_empty_rest_of_line ();
+ free (name);
+ return;
+
+ err_out:
+ ignore_rest_of_line ();
+ free (name);
+ return;
}
\f
projects / thirdparty / binutils-gdb.git / blobdiff