From 13bd16e229449fd35a93296f75a170faa294c56f Mon Sep 17 00:00:00 2001
From: "kaf24@freefall.cl.cam.ac.uk" <kaf24@freefall.cl.cam.ac.uk>
Date: Wed, 27 Oct 2004 09:25:04 +0000
Subject: [PATCH] bitkeeper revision 1.1159.1.285
 (417f69709zfqpQ8rVK-CnP4rYLY9Sg)

Kill dead pdb code.
---
 xen/arch/x86/pdb-stub.c   | 70 ---------------------------------------
 xen/include/asm-x86/pdb.h |  1 -
 2 files changed, 71 deletions(-)

diff --git a/xen/arch/x86/pdb-stub.c b/xen/arch/x86/pdb-stub.c
index 17fdc03d0f..c4e73e2d99 100644
--- a/xen/arch/x86/pdb-stub.c
+++ b/xen/arch/x86/pdb-stub.c
@@ -668,76 +668,6 @@ exit:
 
 int pdb_debug_state = 0;                /* small parser state machine */
 
-int pdb_serial_input(u_char c, struct pt_regs *regs)
-{
-    int out = 1;
-    int loop, count;
-    unsigned long cr3;
-
-    __asm__ __volatile__ ("movl %%cr3,%0" : "=r" (cr3) : );
-
-    switch (pdb_debug_state)
-    {
-    case 0:                         /* not currently processing debug string */
-        if ( c == '$' )                                      /* start token */
-	{
-	    pdb_debug_state = 1;
-	    pdb_in_buffer_ptr = 0;
-	    pdb_in_checksum = 0;
-	    pdb_xmit_checksum = 0;
-	}
-	else 
-	{
-	    out = 0;
-	}
-	break;
-    case 1:                                                       /* saw '$' */
-        if ( c == '#' )                                    /* checksum token */
-	{
-	    pdb_debug_state = 2;
-	    pdb_in_buffer[pdb_in_buffer_ptr] = 0;
-	}
-	else
-	{
-	    pdb_in_checksum += c;
-	    pdb_in_buffer[pdb_in_buffer_ptr++] = c;
-	}
-	break;
-    case 2:                                            /* 1st checksum digit */
-        pdb_xmit_checksum = hex(c) << 4;
-	pdb_debug_state = 3;
-	break;
-    case 3:                                            /* 2nd checksum digit */
-        pdb_xmit_checksum += hex(c);
-	if (pdb_in_checksum != pdb_xmit_checksum) 
-	{
-	    pdb_put_char('-');                           /* checksum failure */
-	    printk ("checksum failure [%s.%02x.%02x]\n", pdb_in_buffer,
-		    pdb_in_checksum, pdb_xmit_checksum);
-	}
-	else 
-	{
-	    pdb_put_char('+');                              /* checksum okay */
-	    if ( pdb_in_buffer_ptr > 1 && pdb_in_buffer[2] == ':' ) 
-	    {
-	        pdb_put_char(pdb_in_buffer[0]);
-		pdb_put_char(pdb_in_buffer[1]);
-		/* remove sequence chars from buffer */
-		count = strlen(pdb_in_buffer);
-		for (loop = 3; loop < count; loop++)
-		    pdb_in_buffer[loop - 3] = pdb_in_buffer[loop];
-	    }
-
-	    pdb_process_command (pdb_in_buffer, regs, cr3,
-				 PDB_LIVE_EXCEPTION);
-	}
-	pdb_debug_state = 0;
-	break;
-    }
-
-    return out;
-}
-
 int hex(char ch)
 {
     if ((ch >= 'a') && (ch <= 'f')) return (ch-'a'+10);
diff --git a/xen/include/asm-x86/pdb.h b/xen/include/asm-x86/pdb.h
index 2ed6a9a318..db98294b7d 100644
--- a/xen/include/asm-x86/pdb.h
+++ b/xen/include/asm-x86/pdb.h
@@ -35,7 +35,6 @@ extern int pdb_get_values(u_char *buffer, int length,
 /* External entry points. */
 extern int pdb_handle_exception(int exceptionVector,
 				struct pt_regs *xen_regs);
-extern int pdb_serial_input(u_char c, struct pt_regs *regs);
 extern void pdb_do_debug(dom0_op_t *op);
 
 /* PDB Context. */
-- 
2.39.5