allow building GDB with Python support on MinGW

[deliverable/binutils-gdb.git] / gas / sb.c

diff --git a/gas/sb.c b/gas/sb.c
index dea3f76c433f35e649ea3dfcb5b8e220629c5a9c..8d5e8dde2fb8e8a9da2d3fb2d20471272132c9d6 100644 (file)
--- a/gas/sb.c
+++ b/gas/sb.c
@@ -1,5 +1,6 @@
 /* sb.c - string buffer manipulation routines
 /* sb.c - string buffer manipulation routines

-   Copyright 1994, 1995, 2000, 2003 Free Software Foundation, Inc.
+   Copyright 1994, 1995, 2000, 2003, 2005, 2006, 2007, 2009
+   Free Software Foundation, Inc.

 
    Written by Steve and Judy Chamberlain of Cygnus Support,
       sac@cygnus.com
 
    Written by Steve and Judy Chamberlain of Cygnus Support,
       sac@cygnus.com


@@ -8,7 +9,7 @@
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)

    any later version.
 
    GAS is distributed in the hope that it will be useful,
    any later version.
 
    GAS is distributed in the hope that it will be useful,


@@ -18,20 +19,10 @@
 
    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
 
    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.  */
-
-#include "config.h"
-#include <stdio.h>
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#include <strings.h>
-#endif
-#include "libiberty.h"
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
+
+#include "as.h"

 #include "sb.h"
 
 /* These routines are about manipulating strings.
 #include "sb.h"
 
 /* These routines are about manipulating strings.


@@ -46,9 +37,7 @@
    sb_new (&foo);
    sb_grow... (&foo,...);
    use foo->ptr[*];
    sb_new (&foo);
    sb_grow... (&foo,...);
    use foo->ptr[*];

-   sb_kill (&foo);
-
-*/
+   sb_kill (&foo);  */

 
 static int dsize = 5;
 static void sb_check (sb *, int);
 
 static int dsize = 5;
 static void sb_check (sb *, int);


@@ -57,23 +46,25 @@ static void sb_check (sb *, int);
 static int string_count[sb_max_power_two];
 
 /* Free list of sb structures.  */
 static int string_count[sb_max_power_two];
 
 /* Free list of sb structures.  */

-static sb_list_vector free_list;
+static struct
+{
+  sb_element *size[sb_max_power_two];
+} free_list;

 
 

-/* initializes an sb.  */
+/* Initializes an sb.  */

 
 static void
 sb_build (sb *ptr, int size)
 {
 
 static void
 sb_build (sb *ptr, int size)
 {

-  /* see if we can find one to allocate */
+  /* See if we can find one to allocate.  */

   sb_element *e;
 
   sb_element *e;
 

-  if (size > sb_max_power_two)
-    abort ();
+  gas_assert (size < sb_max_power_two);

 
   e = free_list.size[size];
   if (!e)
     {
 
   e = free_list.size[size];
   if (!e)
     {

-      /* nothing there, allocate one and stick into the free list */
+      /* Nothing there, allocate one and stick into the free list.  */

       e = (sb_element *) xmalloc (sizeof (sb_element) + (1 << size));
       e->next = free_list.size[size];
       e->size = 1 << size;
       e = (sb_element *) xmalloc (sizeof (sb_element) + (1 << size));
       e->next = free_list.size[size];
       e->size = 1 << size;


@@ -81,11 +72,10 @@ sb_build (sb *ptr, int size)
       string_count[size]++;
     }
 
       string_count[size]++;
     }
 

-  /* remove from free list */
-
+  /* Remove from free list.  */

   free_list.size[size] = e->next;
 
   free_list.size[size] = e->next;
 

-  /* copy into callers world */
+  /* Copy into callers world.  */

   ptr->ptr = e->data;
   ptr->pot = size;
   ptr->len = 0;
   ptr->ptr = e->data;
   ptr->pot = size;
   ptr->len = 0;


@@ -98,17 +88,17 @@ sb_new (sb *ptr)
   sb_build (ptr, dsize);
 }
 
   sb_build (ptr, dsize);
 }
 

-/* deallocate the sb at ptr */
+/* Deallocate the sb at ptr.  */

 
 void
 sb_kill (sb *ptr)
 {
 
 void
 sb_kill (sb *ptr)
 {

-  /* return item to free list */
+  /* Return item to free list.  */

   ptr->item->next = free_list.size[ptr->pot];
   free_list.size[ptr->pot] = ptr->item;
 }
 
   ptr->item->next = free_list.size[ptr->pot];
   free_list.size[ptr->pot] = ptr->item;
 }
 

-/* add the sb at s to the end of the sb at ptr */
+/* Add the sb at s to the end of the sb at ptr.  */

 
 void
 sb_add_sb (sb *ptr, sb *s)
 
 void
 sb_add_sb (sb *ptr, sb *s)


@@ -118,7 +108,39 @@ sb_add_sb (sb *ptr, sb *s)
   ptr->len += s->len;
 }
 
   ptr->len += s->len;
 }
 

-/* make sure that the sb at ptr has room for another len characters,
+/* Helper for sb_scrub_and_add_sb.  */
+
+static sb *sb_to_scrub;
+static char *scrub_position;
+static int
+scrub_from_sb (char *buf, int buflen)
+{
+  int copy;
+  copy = sb_to_scrub->len - (scrub_position - sb_to_scrub->ptr);
+  if (copy > buflen)
+    copy = buflen;
+  memcpy (buf, scrub_position, copy);
+  scrub_position += copy;
+  return copy;
+}
+
+/* Run the sb at s through do_scrub_chars and add the result to the sb
+   at ptr.  */
+
+void
+sb_scrub_and_add_sb (sb *ptr, sb *s)
+{
+  sb_to_scrub = s;
+  scrub_position = s->ptr;
+  
+  sb_check (ptr, s->len);
+  ptr->len += do_scrub_chars (scrub_from_sb, ptr->ptr + ptr->len, s->len);
+
+  sb_to_scrub = 0;
+  scrub_position = 0;
+}
+
+/* Make sure that the sb at ptr has room for another len characters,

    and grow it if it doesn't.  */
 
 static void
    and grow it if it doesn't.  */
 
 static void


@@ -128,6 +150,7 @@ sb_check (sb *ptr, int len)
     {
       sb tmp;
       int pot = ptr->pot;
     {
       sb tmp;
       int pot = ptr->pot;

+

       while (ptr->len + len >= 1 << pot)
        pot++;
       sb_build (&tmp, pot);
       while (ptr->len + len >= 1 << pot)
        pot++;
       sb_build (&tmp, pot);


@@ -137,7 +160,7 @@ sb_check (sb *ptr, int len)
     }
 }
 
     }
 }
 

-/* make the sb at ptr point back to the beginning.  */
+/* Make the sb at ptr point back to the beginning.  */

 
 void
 sb_reset (sb *ptr)
 
 void
 sb_reset (sb *ptr)


@@ -145,7 +168,7 @@ sb_reset (sb *ptr)
   ptr->len = 0;
 }
 
   ptr->len = 0;
 }
 

-/* add character c to the end of the sb at ptr.  */
+/* Add character c to the end of the sb at ptr.  */

 
 void
 sb_add_char (sb *ptr, int c)
 
 void
 sb_add_char (sb *ptr, int c)


@@ -154,7 +177,7 @@ sb_add_char (sb *ptr, int c)
   ptr->ptr[ptr->len++] = c;
 }
 
   ptr->ptr[ptr->len++] = c;
 }
 

-/* add null terminated string s to the end of sb at ptr.  */
+/* Add null terminated string s to the end of sb at ptr.  */

 
 void
 sb_add_string (sb *ptr, const char *s)
 
 void
 sb_add_string (sb *ptr, const char *s)


@@ -165,7 +188,17 @@ sb_add_string (sb *ptr, const char *s)
   ptr->len += len;
 }
 
   ptr->len += len;
 }
 

-/* like sb_name, but don't include the null byte in the string.  */
+/* Add string at s of length len to sb at ptr */
+
+void
+sb_add_buffer (sb *ptr, const char *s, int len)
+{
+  sb_check (ptr, len);
+  memcpy (ptr->ptr + ptr->len, s, len);
+  ptr->len += len;
+}
+
+/* Like sb_name, but don't include the null byte in the string.  */

 
 char *
 sb_terminate (sb *in)
 
 char *
 sb_terminate (sb *in)


@@ -175,8 +208,8 @@ sb_terminate (sb *in)
   return in->ptr;
 }
 
   return in->ptr;
 }
 

-/* start at the index idx into the string in sb at ptr and skip
-   whitespace. return the index of the first non whitespace character */
+/* Start at the index idx into the string in sb at ptr and skip
+   whitespace. return the index of the first non whitespace character.  */

 
 int
 sb_skip_white (int idx, sb *ptr)
 
 int
 sb_skip_white (int idx, sb *ptr)


@@ -188,7 +221,7 @@ sb_skip_white (int idx, sb *ptr)
   return idx;
 }
 
   return idx;
 }
 

-/* start at the index idx into the sb at ptr. skips whitespace,
+/* Start at the index idx into the sb at ptr. skips whitespace,

    a comma and any following whitespace. returns the index of the
    next character.  */
 
    a comma and any following whitespace. returns the index of the
    next character.  */