#include "obstack.h"
#include "listing.h"
-/* We need this, despite the apparent object format dependency, since
- it defines stab types, which all object formats can use now. */
-
-#include "aout/stab_gnu.h"
-
-/* Allow backends to override the names used for the stab sections. */
-#ifndef STAB_SECTION_NAME
-#define STAB_SECTION_NAME ".stab"
-#endif
-
-#ifndef STAB_STRING_SECTION_NAME
-#define STAB_STRING_SECTION_NAME ".stabstr"
-#endif
-
#ifndef TC_START_LABEL
#define TC_START_LABEL(x,y) (x==':')
#endif
* If input_line_pointer [-1] == '\n' then we just
* scanned another line: so bump line counters.
*/
- if (input_line_pointer[-1] == '\n')
+ if (is_end_of_line[input_line_pointer[-1]])
{
- bump_line_counters ();
+ if (input_line_pointer[-1] == '\n')
+ bump_line_counters ();
-#ifdef MRI
- /* Text at the start of a line must be a label, we run down and stick a colon in */
+#if defined (MRI) || defined (LABLES_WITHOUT_COLONS)
+ /* Text at the start of a line must be a label, we run down
+ and stick a colon in. */
if (is_name_beginner (*input_line_pointer))
{
char *line_start = input_line_pointer;
++input_line_pointer;
}
++input_line_pointer;
-
- return;
-} /* s_ignore() */
-\f
-/*
- * Handle .stabX directives, which used to be open-coded.
- * So much creeping featurism overloaded the semantics that we decided
- * to put all .stabX thinking in one place. Here.
- *
- * We try to make any .stabX directive legal. Other people's AS will often
- * do assembly-time consistency checks: eg assigning meaning to n_type bits
- * and "protecting" you from setting them to certain values. (They also zero
- * certain bits before emitting symbols. Tut tut.)
- *
- * If an expression is not absolute we either gripe or use the relocation
- * information. Other people's assemblers silently forget information they
- * don't need and invent information they need that you didn't supply.
- */
-
-/*
- * Build a string dictionary entry for a .stabX symbol.
- * The symbol is added to the .<secname>str section.
- */
-
-#ifdef SEPARATE_STAB_SECTIONS
-
-unsigned int
-get_stab_string_offset (string, stabstr_secname)
- const char *string;
- const char *stabstr_secname;
-{
- unsigned int length;
- unsigned int retval;
-
- retval = 0;
- length = strlen (string);
- if (length > 0)
- { /* Ordinary case. */
- segT save_seg;
- subsegT save_subseg;
- char *newsecname;
- segT seg;
- char *p;
-
- save_seg = now_seg;
- save_subseg = now_subseg;
-
- /* Create the stab string section. */
- newsecname = xmalloc ((unsigned long) (strlen (stabstr_secname) + 1));
- strcpy (newsecname, stabstr_secname);
-
- seg = subseg_new (newsecname, 0);
-
- retval = seg_info (seg)->stabu.stab_string_size;
- if (retval > 0)
- free (newsecname);
- else
- {
- /* Make sure the first string is empty. */
- p = frag_more (1);
- *p = 0;
- retval = seg_info (seg)->stabu.stab_string_size = 1;
-#ifdef BFD_ASSEMBLER
- bfd_set_section_flags (stdoutput, seg, SEC_READONLY | SEC_DEBUGGING);
-#else
- free (newsecname);
-#endif
- }
-
- p = frag_more (length + 1);
- strcpy (p, string);
-
- seg_info (seg)->stabu.stab_string_size += length + 1;
-
- subseg_set (save_seg, save_subseg);
- }
-
- return retval;
-}
-
-#endif /* SEPARATE_STAB_SECTIONS */
-
-/* This can handle different kinds of stabs (s,n,d) and different
- kinds of stab sections. */
-
-static void
-s_stab_generic (what, stab_secname, stabstr_secname)
- int what;
- char *stab_secname;
- char *stabstr_secname;
-{
- long longint;
- char *string;
- int type;
- int other;
- int desc;
-
- /* The general format is:
- .stabs "STRING",TYPE,OTHER,DESC,VALUE
- .stabn TYPE,OTHER,DESC,VALUE
- .stabd TYPE,OTHER,DESC
- At this point input_line_pointer points after the pseudo-op and
- any trailing whitespace. The argument what is one of 's', 'n' or
- 'd' indicating which type of .stab this is. */
-
- if (what != 's')
- string = "";
- else
- {
- int length;
-
- string = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- input_line_pointer++;
- else
- {
- as_warn (".stabs: Missing comma");
- ignore_rest_of_line ();
- return;
- }
- }
-
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_warn (".stab%c: Missing comma", what);
- ignore_rest_of_line ();
- return;
- }
- type = longint;
-
- if (get_absolute_expression_and_terminator (&longint) != ',')
- {
- as_warn (".stab%c: Missing comma", what);
- ignore_rest_of_line ();
- return;
- }
- other = longint;
-
- desc = get_absolute_expression ();
- if (what == 's' || what == 'n')
- {
- if (*input_line_pointer != ',')
- {
- as_warn (".stab%c: Missing comma", what);
- ignore_rest_of_line ();
- return;
- }
- input_line_pointer++;
- SKIP_WHITESPACE ();
- }
-
- /* We have now gathered the type, other, and desc information. For
- .stabs or .stabn, input_line_pointer is now pointing at the
- value. */
-
-#ifdef SEPARATE_STAB_SECTIONS
- /* Output the stab information in a separate section. This is used
- at least for COFF and ELF. */
- {
- segT saved_seg = now_seg;
- subsegT saved_subseg = now_subseg;
- fragS *saved_frag = frag_now;
- valueT dot;
- segT seg;
- unsigned int stroff;
- char *p;
-
- dot = frag_now_fix ();
-
- seg = subseg_new (stab_secname, 0);
-
- if (! seg_info (seg)->hadone)
- {
-#ifdef BFD_ASSEMBLER
- bfd_set_section_flags (stdoutput, seg,
- SEC_READONLY | SEC_RELOC | SEC_DEBUGGING);
-#endif
-#ifdef INIT_STAB_SECTION
- INIT_STAB_SECTION (seg);
-#endif
- seg_info (seg)->hadone = 1;
- }
-
- stroff = get_stab_string_offset (string, stabstr_secname);
-
- /* At least for now, stabs in a special stab section are always
- output as 12 byte blocks of information. */
- p = frag_more (8);
- md_number_to_chars (p, (valueT) stroff, 4);
- md_number_to_chars (p + 4, (valueT) type, 1);
- md_number_to_chars (p + 5, (valueT) other, 1);
- md_number_to_chars (p + 6, (valueT) desc, 2);
-
- if (what == 's' || what == 'n')
- {
- /* Pick up the value from the input line. */
- cons (4);
- input_line_pointer--;
- }
- else
- {
- const char *fake;
- symbolS *symbol;
- expressionS exp;
-
- /* Arrange for a value representing the current location. */
- fake = FAKE_LABEL_NAME;
- symbol = symbol_new (fake, saved_seg, dot, saved_frag);
-
- exp.X_op = O_symbol;
- exp.X_add_symbol = symbol;
- exp.X_add_number = 0;
-
- emit_expr (&exp, 4);
- }
-
-#ifdef OBJ_PROCESS_STAB
- OBJ_PROCESS_STAB (seg, string, stroff, type, other, desc);
-#endif
-
- subseg_set (saved_seg, saved_subseg);
- }
-#else /* ! SEPARATE_STAB_SECTIONS */
-#ifdef OBJ_PROCESS_STAB
- OBJ_PROCESS_STAB (what, string, type, other, desc);
-#else
- /* Put the stab information in the symbol table. */
- {
- symbolS *symbol;
-
- symbol = symbol_new (string, undefined_section, 0,
- (struct frag *) NULL);
- if (what == 's' || what == 'n')
- {
- /* Pick up the value from the input line. */
- symbol->sy_frag = &zero_address_frag;
- pseudo_set (symbol);
- }
- else
- {
- /* .stabd sets the name to NULL. Why? */
- S_SET_NAME (symbol, NULL);
- symbol->sy_frag = frag_now;
- S_SET_VALUE (symbol, (valueT) frag_now_fix ());
- }
-
- S_SET_TYPE (symbol, type);
- S_SET_OTHER (symbol, other);
- S_SET_DESC (symbol, desc);
- }
-#endif /* ! OBJ_PROCESS_STAB */
-#endif /* ! SEPARATE_STAB_SECTIONS */
-
-#ifndef NO_LISTING
- if (listing)
- {
- switch (type)
- {
- case N_SLINE:
- listing_source_line ((unsigned int) desc);
- break;
- case N_SO:
- case N_SOL:
- listing_source_file (string);
- break;
- }
- }
-#endif /* ! NO_LISTING */
-
- demand_empty_rest_of_line ();
-}
-
-/* Regular stab directive. */
-
-void
-s_stab (what)
- int what;
-{
- s_stab_generic (what, STAB_SECTION_NAME, STAB_STRING_SECTION_NAME);
-}
-
-/* "Extended stabs", used in Solaris only now. */
-
-void
-s_xstab (what)
- int what;
-{
- int length;
- char *stab_secname, *stabstr_secname;
-
- stab_secname = demand_copy_C_string (&length);
- SKIP_WHITESPACE ();
- if (*input_line_pointer == ',')
- input_line_pointer++;
- else
- {
- as_bad ("comma missing in .xstabs");
- ignore_rest_of_line ();
- return;
- }
-
- /* To get the name of the stab string section, simply .str to
- the stab section name. */
- stabstr_secname = (char *) xmalloc (strlen (stab_secname) + 4);
- strcpy (stabstr_secname, stab_secname);
- strcat (stabstr_secname, "str");
- s_stab_generic (what, stab_secname, stabstr_secname);
- free (stabstr_secname);
}
-#ifdef S_SET_DESC
-
-/* Frob invented at RMS' request. Set the n_desc of a symbol. */
-
-void
-s_desc (ignore)
- int ignore;
-{
- char *name;
- char c;
- char *p;
- symbolS *symbolP;
- int temp;
-
- name = input_line_pointer;
- c = get_symbol_end ();
- p = input_line_pointer;
- *p = c;
- SKIP_WHITESPACE ();
- if (*input_line_pointer != ',')
- {
- *p = 0;
- as_bad ("Expected comma after name \"%s\"", name);
- *p = c;
- ignore_rest_of_line ();
- }
- else
- {
- input_line_pointer++;
- temp = get_absolute_expression ();
- *p = 0;
- symbolP = symbol_find_or_make (name);
- *p = c;
- S_SET_DESC (symbolP, temp);
- }
- demand_empty_rest_of_line ();
-} /* s_desc() */
-
-#endif /* defined (S_SET_DESC) */
/* end of read.c */
projects / external / binutils.git / commitdiff