From: Richard M. Stallman <rms@gnu.org>
Date: Thu, 12 Jan 1995 21:02:30 +0000 (+0000)
Subject: (unexec): Cast value of sbrk.
X-Git-Tag: emacs-19.34~5452
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=0c97bd6a43547764cf38583a88203cc8a5f2d545;p=emacs.git

(unexec): Cast value of sbrk.
(run_time_remap): Cast arg to brk.
(brk_value): Renamed from Brk.
(is_it): Cast 1st arg of mmap.
---

diff --git a/src/unexsunos4.c b/src/unexsunos4.c
index c591fb07bdc..e36ddeed9e8 100644
--- a/src/unexsunos4.c
+++ b/src/unexsunos4.c
@@ -92,7 +92,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #endif
 
 extern char *getenv ();
-static unsigned Brk;
+static unsigned brk_value;
 static struct exec nhdr;
 static int rd_only_len;
 static long cookie;
@@ -145,7 +145,8 @@ unexec (new_name, a_name, bndry, bss_start, entry)
    */
   cookie = time (0);
 
-  Brk = sbrk (0);		/* Save the break, it is reset to &_end (by ld.so?) */
+  /* Save the break, it is reset to &_end (by ld.so?).  */
+  brk_value = (unsigned) sbrk (0);
 
   /*
    * Round up data start to a page boundary (Lose if not a 2 power!)
@@ -163,15 +164,13 @@ unexec (new_name, a_name, bndry, bss_start, entry)
   initialized = 1;
 #endif
   
-  /* 
-   * Handle new data and bss sizes and optional new entry point.
-   * No one actually uses bss_start and entry,  but tradition compels
-   * one to support them.
-   * Could complain if bss_start > Brk,  but the caller is *supposed* to know
-   * what she is doing.
-   */
-  nhdr.a_data = (bss_start ? bss_start : Brk) - N_DATADDR (nhdr);
-  nhdr.a_bss  = bss_start ? Brk - bss_start : 0;
+  /* Handle new data and bss sizes and optional new entry point.
+     No one actually uses bss_start and entry,  but tradition compels
+     one to support them.
+     Could complain if bss_start > brk_value,
+     but the caller is *supposed* to know what she is doing.  */
+  nhdr.a_data = (bss_start ? bss_start : brk_value) - N_DATADDR (nhdr);
+  nhdr.a_bss  = bss_start ? brk_value - bss_start : 0;
   if (entry) 
     nhdr.a_entry = entry;
 
@@ -279,7 +278,7 @@ run_time_remap (progname)
     return;
 
   /* Restore the break */
-  brk (Brk);
+  brk ((char *) brk_value);
 
   /*  If nothing to remap:  we are done! */
   if (rd_only_len == 0)
@@ -358,7 +357,7 @@ is_it (filename)
 	       * should the shared library decide to indirect through
 	       * addresses in the data segment not part of __DYNAMIC
 	       */
-	      mmap (data_start, rd_only_len, PROT_READ | PROT_EXEC,
+	      mmap ((char *) data_start, rd_only_len, PROT_READ | PROT_EXEC,
 		    MAP_FILE | MAP_SHARED | MAP_FIXED, fd,
 		    N_DATOFF (hdr) + data_start - N_DATADDR (hdr));
 	      close (fd);