--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dynodump/sparc/_relocate.c	Mon Aug 13 11:28:15 2007 +0200
@@ -0,0 +1,294 @@
+/*
+ *	Copyright (c) 1995 by Sun Microsystems, Inc.
+ *	All rights reserved.
+ *
+ * This source code is a product of Sun Microsystems, Inc. and is provided
+ * for unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify this source code without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ *
+ * THIS PROGRAM CONTAINS SOURCE CODE COPYRIGHTED BY SUN MICROSYSTEMS, INC.
+ * SUN MICROSYSTEMS, INC., MAKES NO REPRESENTATIONS ABOUT THE SUITABLITY
+ * OF SUCH SOURCE CODE FOR ANY PURPOSE.  IT IS PROVIDED "AS IS" WITHOUT
+ * EXPRESS OR IMPLIED WARRANTY OF ANY KIND.  SUN MICROSYSTEMS, INC. DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO SUCH SOURCE CODE, INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN
+ * NO EVENT SHALL SUN MICROSYSTEMS, INC. BE LIABLE FOR ANY SPECIAL, INDIRECT,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+ * FROM USE OF SUCH SOURCE CODE, REGARDLESS OF THE THEORY OF LIABILITY.
+ *
+ * This source code is provided with no support and without any obligation on
+ * the part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS
+ * SOURCE CODE OR ANY PART THEREOF.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+
+/*
+ * Update the value of the `_edata' and `_end' symbols.
+ */
+#pragma ident	"@(#) $Id: _relocate.c,v 1.4 1998/03/31 20:10:55 steve Exp $ - SMI"
+
+#include	<libelf.h>
+#include	<string.h>
+#include	"machdep.h"
+#include	"_dynodump.h"
+
+
+#define	GETbyte(P)	((long)((unsigned long)(P)[0]))
+#define	GEThalf(P)	((long)(((unsigned long)(P)[0] << 8) | \
+			    ((unsigned long)(P)[1])))
+#define	GETword(P)	((long)(((unsigned long)(P)[0] << 24) | \
+			    ((unsigned long)(P)[1] << 16) | \
+			    ((unsigned long)(P)[2] << 8) | \
+			    (unsigned long)(P)[3]))
+#define	GETdisp30(P)	(GETword(P) & 0x3fffffff)
+#define	GETdisp22(P)	(GETword(P) & 0x3fffff)
+#define	GETdisp16(P)	(((GETword(P) & 0x300000) >> 6) | \
+			    (GETword(P) & 0x3fff))
+#define	GETdisp19(P)	(GETword(P) & 0x7ffff)
+#define	GETimm22(P)	(GETword(P) & 0x3fffff)
+#define	GETimm5(P)	(GEThalf((P)+2) & 0x1f)
+#define	GETimm6(P)	(GEThalf((P)+2) & 0x2f)
+#define	GETimm7(P)	(GEThalf((P)+2) & 0x3f)
+#define	GETsimm13(P)	(GEThalf((P)+2) & 0x1fff)
+#define	GETsimm10(P)	(GEThalf((P)+2) & 0x3ff)
+#define	GETsimm11(P)	(GEThalf((P)+2) & 0x7ff)
+#define	GETplt22(P)	(GETword((P)+8) & 0x3fffff)
+
+#define	PUTbyte(V, P)	(P)[0] = (V)
+#define	PUThalf(V, P)	(P)[0] = ((V) >> 8); \
+			(P)[1] = ((V))
+#define	PUTword(V, P)	(P)[0] = (unsigned char)((V) >> 24); \
+			(P)[1] = (unsigned char)((V) >> 16); \
+			(P)[2] = (unsigned char)((V) >> 8); \
+			(P)[3] = (unsigned char)(V)
+#define	PUTdisp30(V, P)	{ \
+			unsigned long int temp; \
+			temp = GETword(P) & ~0x3fffffff; \
+			temp |= ((V) & 0x3fffffff); \
+			PUTword(temp, P); \
+			}
+#define	PUTdisp22(V, P)	{ \
+			unsigned long int temp; \
+			temp = GETword(P) & ~0x3fffff; \
+			temp |= ((V) & 0x3fffff); \
+			PUTword(temp, P); \
+			}
+#define	PUTimm22(V, P)	{ \
+			unsigned long int temp; \
+			temp = GETword(P) & ~0x3fffff; \
+			temp |= ((V) & 0x3fffff); \
+			PUTword(temp, P); \
+			}
+#define	PUTimm5(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x1f; \
+			temp |= ((V) & 0x1f); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTimm6(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x2f; \
+			temp |= ((V) & 0x2f); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTimm7(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x3f; \
+			temp |= ((V) & 0x3f); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTsimm13(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x1fff; \
+			temp |= ((V) & 0x1fff); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTplt22(V, P)	{ \
+			unsigned long int temp; \
+			temp = GETword((P)+8) & ~0x3fffff; \
+			temp |= ((V) & 0x3fffff); \
+			PUTword(temp, ((P)+8)); \
+			}
+#define	PUTsimm10(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x3ff; \
+			temp |= ((V) & 0x3ff); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTsimm11(V, P)	{ \
+			unsigned long int temp; \
+			temp = GEThalf(P+2) & ~0x7ff; \
+			temp |= ((V) & 0x7ff); \
+			PUThalf(temp, (P+2)); \
+			}
+#define	PUTdisp16(V, P) { \
+			unsigned long int temp; \
+			temp = GETword(P) & ~0x303fff; \
+			temp |= ((V) & 0xc000) << 6; \
+			temp |= ((V) & 0x3fff); \
+			PUTword(temp, P); \
+			}
+#define	PUTdisp19(V, P)	{ \
+			unsigned long int temp; \
+			temp = GETword(P) & ~0x7ffff; \
+			temp |= ((V) & 0x7ffff); \
+			PUTword(temp, P); \
+			}
+
+static void
+move_reloc(unsigned char * iaddr, unsigned char * oaddr, unsigned char type)
+{
+    switch (type) {
+    case R_SPARC_8:
+    case R_SPARC_DISP8:
+	PUTbyte(GETbyte(iaddr), oaddr);
+	break;
+
+    case R_SPARC_16:
+    case R_SPARC_DISP16:
+	PUThalf(GEThalf(iaddr), oaddr);
+	break;
+
+    case R_SPARC_32:
+    case R_SPARC_DISP32:
+    case R_SPARC_GLOB_DAT:
+    case R_SPARC_RELATIVE:
+    case R_SPARC_UA32:
+	PUTword(GETword(iaddr), oaddr);
+	break;
+
+    case R_SPARC_WDISP30:
+    case R_SPARC_WPLT30:
+	PUTdisp30(GETdisp30(iaddr), oaddr);
+	break;
+
+    case R_SPARC_WDISP22:
+    case R_SPARC_PC22:
+	PUTdisp22(GETdisp22(iaddr), oaddr);
+	break;
+
+    case R_SPARC_HI22:
+    case R_SPARC_GOT22:
+    case R_SPARC_22:
+	PUTimm22(GETimm22(iaddr), oaddr);
+	break;
+
+    case R_SPARC_13:
+    case R_SPARC_GOT13:
+	PUTsimm13(GETsimm13(iaddr), oaddr);
+	break;
+
+    case R_SPARC_LO10:
+    case R_SPARC_GOT10:
+    case R_SPARC_PC10:
+#ifdef R_SPARC_10
+    case R_SPARC_10:
+#endif
+	PUTsimm10(GETsimm10(iaddr), oaddr);
+	break;
+
+#ifdef R_SPARC_11
+    case R_SPARC_11:
+	PUTsimm11(GETsimm11(iaddr), oaddr);
+	break;
+#endif
+
+#ifdef R_SPARC_WDISP16
+    case R_SPARC_WDISP16:
+	PUTdisp16(GETdisp16(iaddr), oaddr);
+	break;
+#endif
+
+#ifdef R_SPARC_WDISP19
+    case R_SPARC_WDISP19:
+	PUTdisp19(GETdisp19(iaddr), oaddr);
+	break;
+#endif
+
+#ifdef R_SPARC_5
+    case R_SPARC_5:
+	PUTimm5(GETimm5(iaddr), oaddr);
+	break;
+#endif
+
+#ifdef R_SPARC_6
+    case R_SPARC_6:
+	PUTimm6(GETimm6(iaddr), oaddr);
+	break;
+#endif
+
+#ifdef R_SPARC_7
+    case R_SPARC_7:
+	PUTimm7(GETimm7(iaddr), oaddr);
+	break;
+#endif
+
+    default:
+	break;
+    }
+}
+
+void
+update_reloc(Cache *ocache, Cache *_ocache,
+	     Cache *icache, Cache *_icache,
+	     Half shnum)
+{
+    Shdr *shdr;
+    Rel *rels;
+    int	reln, cnt;
+    Cache *orcache, *ircache;
+
+    /*
+     * Set up to read the output relocation table.
+     */
+    shdr = _ocache->c_shdr;
+    rels = (Rel *)_ocache->c_data->d_buf;
+    reln = shdr->sh_size / shdr->sh_entsize;
+
+    /*
+     * Determine the section that is being relocated.
+     */
+    orcache = &ocache[shdr->sh_info];
+    shdr = _icache->c_shdr;
+    ircache = &icache[shdr->sh_info];
+
+    /*
+     * Loop through the relocation table.
+     */
+    for (cnt = 0; cnt < reln; cnt++, rels++) {
+	unsigned char *iaddr, *oaddr;
+	Addr off;
+	unsigned char type = ELF_R_TYPE(rels->r_info);
+
+	/*
+	 * Ignore some relocations as these can safely be carried out
+	 * twice (they simply override any existing data).  In fact,
+	 * some relocations like __iob's copy relocation must be carried
+	 * out each time the process restarts otherwise stdio blows up.
+	 */
+	if ((type == R_SPARC_COPY) || (type == R_SPARC_JMP_SLOT) ||
+	    (type == R_SPARC_NONE))
+	    continue;
+
+	/*
+	 * If we are required to restore the relocation location
+	 * to its value prior to relocation, then read the
+	 * locations original contents from the input image and
+	 * copy it to the output image.
+	 */
+	off = rels->r_offset - ircache->c_shdr->sh_addr;
+	iaddr = (unsigned char *)ircache->c_data->d_buf + off;
+	oaddr = (unsigned char *)orcache->c_data->d_buf + off;
+	move_reloc(iaddr, oaddr, type);
+    }
+}