[gdbserver] Use enum target_signal in _send_signal.

[Pedro Alves <pedro_alves at portugalmail dot pt>]

Hi all,

This patch converts the send_signal function in target_ops to use enum 
target_signal
instead of the real target number.  I originally needed this for the 
WinCE gdbserver port.
Windows CE doesn't have signals support, and doesn't define SIGINT in 
any header.
Because of that, remote-utils.c wouldn't compile.  I still want to have 
support of stopping
a debuggee - this patch paves the way to that, with minimal interface 
changes.  I will handle
TARGET_SIGNAL_INT in the send_signal handler on the target side.

Ok?

Cheers,
Pedro Alves

---
gdb/gdbserver/ChangeLog:

2007-02-24  Pedro Alves  <pedro_alves@portugalmail.pt>

   * target.h (target_ops): Change parameter of send_signal from int to
   enum target_signal.
   * linux-low.c (linux_send_signal): Change parameter from int to
   enum target_signal.
   * spu-low.c (spu_send_signal): Likewise.
   * remote-utils.c (putpkt_binary): Pass TARGET_SIGNAL_INT instead
   of SIGINT.
   (input_interrupt): Likewise.

Index: src/gdb/gdbserver/linux-low.c
===================================================================
--- src.orig/gdb/gdbserver/linux-low.c	2007-02-24 23:04:16.000000000 +0000
+++ src/gdb/gdbserver/linux-low.c	2007-02-24 23:05:54.000000000 +0000
@@ -1514,9 +1514,13 @@
 }
 
 static void
-linux_send_signal (int signum)
+linux_send_signal (enum target_signal sig)
 {
   extern unsigned long signal_pid;
+  int signum = target_signal_to_host (sig);
+
+  if (signum == 0)
+    return;
 
   if (cont_thread != 0 && cont_thread != -1)
     {
Index: src/gdb/gdbserver/spu-low.c
===================================================================
--- src.orig/gdb/gdbserver/spu-low.c	2007-02-24 23:04:16.000000000 +0000
+++ src/gdb/gdbserver/spu-low.c	2007-02-24 23:05:54.000000000 +0000
@@ -551,8 +551,13 @@
 
 /* Send signal to inferior.  */
 static void
-spu_send_signal (int signo)
+spu_send_signal (enum target_signal sig)
 {
+  int signo = target_signal_to_host (sig);
+
+  if (signo == 0)
+    return;
+
   syscall (SYS_tkill, current_tid, signo);
 }
 
Index: src/gdb/gdbserver/target.h
===================================================================
--- src.orig/gdb/gdbserver/target.h	2007-02-24 23:04:16.000000000 +0000
+++ src/gdb/gdbserver/target.h	2007-02-24 23:05:54.000000000 +0000
@@ -128,7 +128,7 @@
   void (*look_up_symbols) (void);
 
   /* Send a signal to the inferior process, however is appropriate.  */
-  void (*send_signal) (int);
+  void (*send_signal) (enum target_signal);
 
   /* Read auxiliary vector data from the inferior process.
 
Index: src/gdb/gdbserver/remote-utils.c
===================================================================
--- src.orig/gdb/gdbserver/remote-utils.c	2007-02-24 23:04:20.000000000 +0000
+++ src/gdb/gdbserver/remote-utils.c	2007-02-24 23:05:54.000000000 +0000
@@ -549,7 +549,7 @@
 
       /* Check for an input interrupt while we're here.  */
       if (buf3[0] == '\003')
-	(*the_target->send_signal) (SIGINT);
+	(*the_target->send_signal) (TARGET_SIGNAL_INT);
     }
   while (buf3[0] != '+');
 
@@ -572,7 +572,7 @@
 /* Come here when we get an input interrupt from the remote side.  This
    interrupt should only be active while we are waiting for the child to do
    something.  About the only thing that should come through is a ^C, which
-   will cause us to send a SIGINT to the child.  */
+   will cause us to send a TARGET_SIGNAL_INT to the child.  */
 
 static void
 input_interrupt (int unused)
@@ -599,7 +599,7 @@
 	  return;
 	}
       
-      (*the_target->send_signal) (SIGINT);
+      (*the_target->send_signal) (TARGET_SIGNAL_INT);
     }
 }
 #endif