2002-12-06 Andrew Cagney <ac131313@redhat.com>

[deliverable/binutils-gdb.git] / gdb / gdbserver / low-sparc.c

diff --git a/gdb/gdbserver/low-sparc.c b/gdb/gdbserver/low-sparc.c
index e0e635e5bd0d663f100c71110e533cf76c1292aa..4b03140e128c1c3b3d78c2cbc1014890c715d080 100644 (file)
--- a/gdb/gdbserver/low-sparc.c
+++ b/gdb/gdbserver/low-sparc.c
@@ -1,5 +1,6 @@
 /* Low level interface to ptrace, for the remote server for GDB.
-   Copyright (C) 1986, 1987, 1993 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1993, 1994, 1995, 1997, 1999, 2000, 2001, 2002
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -18,7 +19,7 @@
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-#include "defs.h"
+#include "server.h"
 #include <sys/wait.h>
 #include "frame.h"
 #include "inferior.h"
@@ -36,15 +37,8 @@
 #include <fcntl.h>
 
 /***************Begin MY defs*********************/
-int quit_flag = 0;
 static char my_registers[REGISTER_BYTES];
 char *registers = my_registers;
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-
-
-char buf2[MAX_REGISTER_RAW_SIZE];
 /***************End MY defs*********************/
 
 #include <sys/ptrace.h>
@@ -52,20 +46,13 @@ char buf2[MAX_REGISTER_RAW_SIZE];
 
 extern int sys_nerr;
 extern char **sys_errlist;
-extern char **environ;
 extern int errno;
-extern int inferior_pid;
-void quit (), perror_with_name ();
-int query ();
 
 /* Start an inferior process and returns its pid.
-   ALLARGS is a vector of program-name and args.
-   ENV is the environment vector to pass.  */
+   ALLARGS is a vector of program-name and args. */
 
 int
-create_inferior (program, allargs)
-     char *program;
-     char **allargs;
+create_inferior (char *program, char **allargs)
 {
   int pid;
 
@@ -88,10 +75,17 @@ create_inferior (program, allargs)
   return pid;
 }
 
+/* Attaching is not supported.  */
+int
+myattach (int pid)
+{
+  return -1;
+}
+
 /* Kill the inferior process.  Make us have no inferior.  */
 
 void
-kill_inferior ()
+kill_inferior (void)
 {
   if (inferior_pid == 0)
     return;
@@ -102,8 +96,7 @@ kill_inferior ()
 
 /* Return nonzero if the given thread is still alive.  */
 int
-mythread_alive (pid)
-     int pid;
+mythread_alive (int pid)
 {
   return 1;
 }
@@ -111,13 +104,14 @@ mythread_alive (pid)
 /* Wait for process, returns status */
 
 unsigned char
-mywait (status)
-     char *status;
+mywait (char *status)
 {
   int pid;
   union wait w;
 
-  pid = wait (&w);
+  enable_async_io ();
+  pid = waitpid (inferior_pid, &w, 0);
+  disable_async_io ();
   if (pid != inferior_pid)
     perror_with_name ("wait");
 
@@ -145,9 +139,7 @@ mywait (status)
    If SIGNAL is nonzero, give it that signal.  */
 
 void
-myresume (step, signal)
-     int step;
-     int signal;
+myresume (int step, int signal)
 {
   errno = 0;
   ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
@@ -160,8 +152,7 @@ myresume (step, signal)
    marking them as valid so we won't fetch them again.  */
 
 void
-fetch_inferior_registers (ignored)
-     int ignored;
+fetch_inferior_registers (int ignored)
 {
   struct regs inferior_registers;
   struct fp_status inferior_fp_registers;
@@ -207,8 +198,7 @@ fetch_inferior_registers (ignored)
    Otherwise, REGNO specifies which register (so we can save time).  */
 
 void
-store_inferior_registers (ignored)
-     int ignored;
+store_inferior_registers (int ignored)
 {
   struct regs inferior_registers;
   struct fp_status inferior_fp_registers;
@@ -250,14 +240,12 @@ store_inferior_registers (ignored)
 /* Copy LEN bytes from inferior's memory starting at MEMADDR
    to debugger memory starting at MYADDR.  */
 
-read_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
+void
+read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
 {
   register int i;
   /* Round starting address down to longword boundary.  */
-  register CORE_ADDR addr = memaddr & -sizeof (int);
+  register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int);
   /* Round ending address up; get number of longwords that makes.  */
   register int count
   = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
@@ -280,14 +268,11 @@ read_inferior_memory (memaddr, myaddr, len)
    returns the value of errno.  */
 
 int
-write_inferior_memory (memaddr, myaddr, len)
-     CORE_ADDR memaddr;
-     char *myaddr;
-     int len;
+write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
 {
   register int i;
   /* Round starting address down to longword boundary.  */
-  register CORE_ADDR addr = memaddr & -sizeof (int);
+  register CORE_ADDR addr = memaddr & -(CORE_ADDR) sizeof (int);
   /* Round ending address up; get number of longwords that makes.  */
   register int count
   = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
@@ -324,13 +309,6 @@ write_inferior_memory (memaddr, myaddr, len)
 }
 \f
 void
-initialize ()
-{
-  inferior_pid = 0;
-}
-
-int
-have_inferior_p ()
+initialize_low (void)
 {
-  return inferior_pid != 0;
 }