* read.c (s_space): Don't warn about .space 0.

[binutils.git] / gas / read.c

diff --git a/gas/read.c b/gas/read.c
index 90ef3674accb6335081ee334791c621707aa6222..de405cc52fb39e832211d196434db6ea9bb099ef 100644 (file)
--- a/gas/read.c
+++ b/gas/read.c
@@ -43,6 +43,7 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 #include "obstack.h"
 #include "listing.h"
 #include "ecoff.h"
+#include "dw2gencfi.h"
 
 #ifndef TC_START_LABEL
 #define TC_START_LABEL(x,y) (x == ':')
@@ -168,10 +169,6 @@ static char *buffer_limit; /*->1 + last char in buffer.  */
    internals manual.  */
 int target_big_endian = TARGET_BYTES_BIG_ENDIAN;
 
-static char *old_buffer;       /* JF a hack.  */
-static char *old_input;
-static char *old_limit;
-
 /* Variables for handling include file directory table.  */
 
 /* Table of pointers to directories to search for .include's.  */
@@ -455,6 +452,10 @@ pop_insert (table)
 #define obj_pop_insert()       pop_insert(obj_pseudo_table)
 #endif
 
+#ifndef cfi_pop_insert
+#define cfi_pop_insert()       pop_insert(cfi_pseudo_table)
+#endif
+
 static void
 pobegin ()
 {
@@ -472,6 +473,12 @@ pobegin ()
   /* Now portable ones.  Skip any that we've seen already.  */
   pop_table_name = "standard";
   pop_insert (potable);
+  
+#ifdef TARGET_USE_CFIPOP
+  pop_table_name = "cfi";
+  pop_override_ok = 1;
+  cfi_pop_insert ();
+#endif
 }
 \f
 #define HANDLE_CONDITIONAL_ASSEMBLY()                                  \
@@ -533,9 +540,7 @@ read_a_source_file (name)
   while ((buffer_limit = input_scrub_next_buffer (&input_line_pointer)) != 0)
     {                          /* We have another line to parse.  */
       know (buffer_limit[-1] == '\n'); /* Must have a sentinel.  */
-    contin:                    /* JF this goto is my fault I admit it.
-                                  Someone brave please re-write the whole
-                                  input section here?  Pleeze???  */
+
       while (input_line_pointer < buffer_limit)
        {
          /* We have more of this buffer to parse.  */
@@ -710,6 +715,9 @@ read_a_source_file (name)
                  line_label = colon (s);       /* User-defined label.  */
                  /* Put ':' back for error messages' sake.  */
                  *input_line_pointer++ = ':';
+#ifdef tc_check_label
+                 tc_check_label (line_label);
+#endif
                  /* Input_line_pointer->after ':'.  */
                  SKIP_WHITESPACE ();
                }
@@ -950,6 +958,7 @@ read_a_source_file (name)
 
          if (c && strchr (line_comment_chars, c))
            {                   /* Its a comment.  Better say APP or NO_APP.  */
+             sb sbuf;
              char *ends;
              char *new_buf;
              char *new_tmp;
@@ -962,6 +971,7 @@ read_a_source_file (name)
                continue;       /* We ignore it */
              s += 4;
 
+             sb_new (&sbuf);
              ends = strstr (s, "#NO_APP\n");
 
              if (!ends)
@@ -1023,7 +1033,7 @@ read_a_source_file (name)
 
                  if (size < space)
                    {
-                     new_tmp += size;
+                     new_tmp[size] = 0;
                      break;
                    }
 
@@ -1034,13 +1044,19 @@ read_a_source_file (name)
 
              if (tmp_buf)
                free (tmp_buf);
-             old_buffer = buffer;
-             old_input = input_line_pointer;
-             old_limit = buffer_limit;
-             buffer = new_buf;
-             input_line_pointer = new_buf;
-             buffer_limit = new_tmp;
 
+             /* We've "scrubbed" input to the preferred format.  In the
+                process we may have consumed the whole of the remaining
+                file (and included files).  We handle this formatted
+                input similar to that of macro expansion, letting
+                actual macro expansion (possibly nested) and other
+                input expansion work.  Beware that in messages, line
+                numbers and possibly file names will be incorrect.  */
+             sb_add_string (&sbuf, new_buf);
+             input_scrub_include_sb (&sbuf, input_line_pointer, 0);
+             sb_kill (&sbuf);
+             buffer_limit = input_scrub_next_buffer (&input_line_pointer);
+             free (new_buf);
              continue;
            }
 
@@ -1058,20 +1074,6 @@ read_a_source_file (name)
 #ifdef md_after_pass_hook
       md_after_pass_hook ();
 #endif
-
-      if (old_buffer)
-       {
-         free (buffer);
-         bump_line_counters ();
-         if (old_input != 0)
-           {
-             buffer = old_buffer;
-             input_line_pointer = old_input;
-             buffer_limit = old_limit;
-             old_buffer = 0;
-             goto contin;
-           }
-       }
     }
 
  quit:
@@ -1387,7 +1389,8 @@ s_comm (ignore)
 
   if ((temp = get_absolute_expression ()) < 0)
     {
-      as_warn (_(".COMMon length (%ld) < 0 ignored"), (long) temp);
+      as_warn (_(".COMMon length (%lu) out of range ignored"),
+              (unsigned long) temp);
       ignore_rest_of_line ();
       if (flag_mri)
        mri_comment_end (stop, stopc);
@@ -2967,9 +2970,7 @@ s_space (mult)
          bytes = repeat;
          if (repeat <= 0)
            {
-             if (!flag_mri)
-               as_warn (_(".space repeat count is zero, ignored"));
-             else if (repeat < 0)
+             if (repeat < 0)
                as_warn (_(".space repeat count is negative, ignored"));
              goto getout;
            }
@@ -3344,6 +3345,14 @@ parse_repeat_cons PARAMS ((expressionS *exp, unsigned int nbytes));
 #endif
 #endif
 
+void
+do_parse_cons_expression (expressionS *exp,
+                         int nbytes ATTRIBUTE_UNUSED)
+{
+  TC_PARSE_CONS_EXPRESSION (exp, nbytes);
+}
+
+
 /* Worker to do .byte etc statements.
    Clobbers input_line_pointer and checks end-of-line.  */
 
@@ -3442,6 +3451,8 @@ emit_expr (exp, nbytes)
   if (need_pass_2)
     return;
 
+  dot_value = frag_now_fix ();
+
 #ifndef NO_LISTING
 #ifdef OBJ_ELF
   /* When gcc emits DWARF 1 debugging pseudo-ops, a line number will