X-Git-Url: http://git.hcoop.net/bpt/emacs.git/blobdiff_plain/b1d876f1a19ae65c8a8dd61c4ce17055ca53f16c..85a83ea09dd2440187945ed4bb5f3f6fcebb9a71:/src/unexhp9k800.c

diff --git a/src/unexhp9k800.c b/src/unexhp9k800.c
index 9889ffd63f..ce65faffd4 100644
--- a/src/unexhp9k800.c
+++ b/src/unexhp9k800.c
@@ -64,8 +64,7 @@ static long brk_on_dump = 0;
 
 /* Called from main, if we use shared libraries.  */
 int
-run_time_remap (ignored)
-     char *ignored;
+run_time_remap (char *ignored)
 {
   brk ((char *) brk_on_dump);
 }
@@ -74,75 +73,11 @@ run_time_remap (ignored)
 #define roundup(x,n) (((x) + ((n) - 1)) & ~((n) - 1))  /* n is power of 2 */
 #define min(x,y)  (((x) < (y)) ? (x) : (y))
 
-
-/* Create a new a.out file, same as old but with current data space */
-int
-unexec (const char *new_name,      /* name of the new a.out file to be created */
-	const char *old_name)       /* name of the old a.out file */
-{
-  int old, new;
-  int old_size, new_size;
-  struct header hdr;
-  struct som_exec_auxhdr auxhdr;
-  long i;
-
-  /* For the greatest flexibility, should create a temporary file in
-     the same directory as the new file.  When everything is complete,
-     rename the temp file to the new name.
-     This way, a program could update its own a.out file even while
-     it is still executing.  If problems occur, everything is still
-     intact.  NOT implemented.  */
-
-  /* Open the input and output a.out files */
-  old = open (old_name, O_RDONLY);
-  if (old < 0)
-    { perror (old_name); exit (1); }
-  new = open (new_name, O_CREAT|O_RDWR|O_TRUNC, 0777);
-  if (new < 0)
-    { perror (new_name); exit (1); }
-
-  /* Read the old headers */
-  read_header (old, &hdr, &auxhdr);
-
-  brk_on_dump = (long) sbrk (0);
-
-  /* Decide how large the new and old data areas are */
-  old_size = auxhdr.exec_dsize;
-  /* I suspect these two statements are separate
-     to avoid a compiler bug in hpux version 8.  */
-  i = (long) sbrk (0);
-  new_size = i - auxhdr.exec_dmem;
-
-  /* Copy the old file to the new, up to the data space */
-  lseek (old, 0, 0);
-  copy_file (old, new, auxhdr.exec_dfile);
-
-  /* Skip the old data segment and write a new one */
-  lseek (old, old_size, 1);
-  save_data_space (new, &hdr, &auxhdr, new_size);
-
-  /* Copy the rest of the file */
-  copy_rest (old, new);
-
-  /* Update file pointers since we probably changed size of data area */
-  update_file_ptrs (new, &hdr, &auxhdr, auxhdr.exec_dfile, new_size-old_size);
-
-  /* Save the modified header */
-  write_header (new, &hdr, &auxhdr);
-
-  /* Close the binary file */
-  close (old);
-  close (new);
-  return 0;
-}
-
 /* Save current data space in the file, update header.  */
 
-save_data_space (file, hdr, auxhdr, size)
-     int file;
-     struct header *hdr;
-     struct som_exec_auxhdr *auxhdr;
-     int size;
+static void
+save_data_space (int file, struct header *hdr, struct som_exec_auxhdr *auxhdr,
+		 int size)
 {
   /* Write the entire data space out to the file */
   if (write (file, auxhdr->exec_dmem, size) != size)
@@ -155,12 +90,9 @@ save_data_space (file, hdr, auxhdr, size)
 
 /* Update the values of file pointers when something is inserted.  */
 
-update_file_ptrs (file, hdr, auxhdr, location, offset)
-     int file;
-     struct header *hdr;
-     struct som_exec_auxhdr *auxhdr;
-     unsigned int location;
-     int offset;
+static void
+update_file_ptrs (int file, struct header *hdr, struct som_exec_auxhdr *auxhdr,
+		  unsigned int location, int offset)
 {
   struct subspace_dictionary_record subspace;
   int i;
@@ -206,10 +138,8 @@ update_file_ptrs (file, hdr, auxhdr, location, offset)
 
 /* Read in the header records from an a.out file.  */
 
-read_header (file, hdr, auxhdr)
-     int file;
-     struct header *hdr;
-     struct som_exec_auxhdr *auxhdr;
+static void
+read_header (int file, struct header *hdr, struct som_exec_auxhdr *auxhdr)
 {
 
   /* Read the header in */
@@ -234,10 +164,8 @@ read_header (file, hdr, auxhdr)
 
 /* Write out the header records into an a.out file.  */
 
-write_header (file, hdr, auxhdr)
-     int file;
-     struct header *hdr;
-     struct som_exec_auxhdr *auxhdr;
+static void
+write_header (int file, struct header *hdr, struct som_exec_auxhdr *auxhdr)
 {
   /* Update the checksum */
   hdr->checksum = calculate_checksum (hdr);
@@ -253,8 +181,8 @@ write_header (file, hdr, auxhdr)
 
 /* Calculate the checksum of a SOM header record. */
 
-calculate_checksum (hdr)
-     struct header *hdr;
+static int
+calculate_checksum (struct header *hdr)
 {
   int checksum, i, *ptr;
 
@@ -268,9 +196,8 @@ calculate_checksum (hdr)
 
 /* Copy size bytes from the old file to the new one.  */
 
-copy_file (old, new, size)
-     int new, old;
-     int size;
+static void
+copy_file (int old, int new, int size)
 {
   int len;
   int buffer[8192];  /* word aligned will be faster */
@@ -287,8 +214,8 @@ copy_file (old, new, size)
 
 /* Copy the rest of the file, up to EOF.  */
 
-copy_rest (old, new)
-     int new, old;
+static void
+copy_rest (int old, int new)
 {
   int buffer[4096];
   int len;
@@ -302,9 +229,8 @@ copy_rest (old, new)
 }
 
 #ifdef	DEBUG
-display_header (hdr, auxhdr)
-     struct header *hdr;
-     struct som_exec_auxhdr *auxhdr;
+static void
+display_header (struct header *hdr, struct som_exec_auxhdr *auxhdr)
 {
   /* Display the header information (debug) */
   printf ("\n\nFILE HEADER\n");
@@ -321,3 +247,64 @@ display_header (hdr, auxhdr)
 	  hdr->unloadable_sp_location, hdr->unloadable_sp_size);
 }
 #endif /* DEBUG */
+
+
+/* Create a new a.out file, same as old but with current data space */
+void
+unexec (const char *new_name,      /* name of the new a.out file to be created */
+	const char *old_name)       /* name of the old a.out file */
+{
+  int old, new;
+  int old_size, new_size;
+  struct header hdr;
+  struct som_exec_auxhdr auxhdr;
+  long i;
+
+  /* For the greatest flexibility, should create a temporary file in
+     the same directory as the new file.  When everything is complete,
+     rename the temp file to the new name.
+     This way, a program could update its own a.out file even while
+     it is still executing.  If problems occur, everything is still
+     intact.  NOT implemented.  */
+
+  /* Open the input and output a.out files */
+  old = open (old_name, O_RDONLY);
+  if (old < 0)
+    { perror (old_name); exit (1); }
+  new = open (new_name, O_CREAT|O_RDWR|O_TRUNC, 0777);
+  if (new < 0)
+    { perror (new_name); exit (1); }
+
+  /* Read the old headers */
+  read_header (old, &hdr, &auxhdr);
+
+  brk_on_dump = (long) sbrk (0);
+
+  /* Decide how large the new and old data areas are */
+  old_size = auxhdr.exec_dsize;
+  /* I suspect these two statements are separate
+     to avoid a compiler bug in hpux version 8.  */
+  i = (long) sbrk (0);
+  new_size = i - auxhdr.exec_dmem;
+
+  /* Copy the old file to the new, up to the data space */
+  lseek (old, 0, 0);
+  copy_file (old, new, auxhdr.exec_dfile);
+
+  /* Skip the old data segment and write a new one */
+  lseek (old, old_size, 1);
+  save_data_space (new, &hdr, &auxhdr, new_size);
+
+  /* Copy the rest of the file */
+  copy_rest (old, new);
+
+  /* Update file pointers since we probably changed size of data area */
+  update_file_ptrs (new, &hdr, &auxhdr, auxhdr.exec_dfile, new_size-old_size);
+
+  /* Save the modified header */
+  write_header (new, &hdr, &auxhdr);
+
+  /* Close the binary file */
+  close (old);
+  close (new);
+}