4 files changed, 38 insertions, 19 deletions

diff --git a/arch/mn10300/include/asm/elf.h b/arch/mn10300/include/asm/elf.h
index 49105462e6fc..75a70aa9fd6f 100644
--- a/arch/mn10300/include/asm/elf.h
+++ b/arch/mn10300/include/asm/elf.h
@@ -28,6 +28,8 @@
 #define R_MN10300_PCREL8	6	/* PC-relative 8-bit signed.  */
 #define R_MN10300_24		9	/* Direct 24 bit.  */
 #define R_MN10300_RELATIVE	23	/* Adjust by program base.  */
+#define R_MN10300_SYM_DIFF	33	/* Adjustment when relaxing. */
+#define R_MN10300_ALIGN 	34	/* Alignment requirement. */
 
 /*
  * ELF register definitions..
diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 0517b45313d8..e58b9a46e1b1 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -106,19 +106,6 @@ extern void pcibios_bus_to_resource(struct pci_dev *dev,
 				    struct resource *res,
 				    struct pci_bus_region *region);
 
-static inline struct resource *
-pcibios_select_root(struct pci_dev *pdev, struct resource *res)
-{
-	struct resource *root = NULL;
-
-	if (res->flags & IORESOURCE_IO)
-		root = &ioport_resource;
-	if (res->flags & IORESOURCE_MEM)
-		root = &iomem_resource;
-
-	return root;
-}
-
 #define pcibios_scan_all_fns(a, b)	0
 
 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c
index 4fa0e3648d8e..6aea7fd76993 100644
--- a/arch/mn10300/kernel/module.c
+++ b/arch/mn10300/kernel/module.c
@@ -1,6 +1,6 @@
 /* MN10300 Kernel module helper routines
  *
- * Copyright (C) 2007, 2008 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2007, 2008, 2009 Red Hat, Inc. All Rights Reserved.
  * Written by Mark Salter (msalter@redhat.com)
  * - Derived from arch/i386/kernel/module.c
  *
@@ -103,10 +103,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 		       unsigned int relsec,
 		       struct module *me)
 {
-	unsigned int i;
+	unsigned int i, sym_diff_seen = 0;
 	Elf32_Rela *rel = (void *)sechdrs[relsec].sh_addr;
 	Elf32_Sym *sym;
-	Elf32_Addr relocation;
+	Elf32_Addr relocation, sym_diff_val = 0;
 	uint8_t *location;
 	uint32_t value;
 
@@ -126,6 +126,22 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 		/* this is the adjustment to be made */
 		relocation = sym->st_value + rel[i].r_addend;
 
+		if (sym_diff_seen) {
+			switch (ELF32_R_TYPE(rel[i].r_info)) {
+			case R_MN10300_32:
+			case R_MN10300_24:
+			case R_MN10300_16:
+			case R_MN10300_8:
+				relocation -= sym_diff_val;
+				sym_diff_seen = 0;
+				break;
+			default:
+				printk(KERN_ERR "module %s: Unexpected SYM_DIFF relocation: %u\n",
+				       me->name, ELF32_R_TYPE(rel[i].r_info));
+				return -ENOEXEC;
+			}
+		}
+
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
 			/* for the first four relocation types, we simply
 			 * store the adjustment at the location given */
@@ -157,12 +173,29 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 			*location = relocation - (uint32_t) location;
 			break;
 
+		case R_MN10300_SYM_DIFF:
+			/* This is used to adjust the next reloc as required
+			 * by relaxation. */
+			sym_diff_seen = 1;
+			sym_diff_val = sym->st_value;
+			break;
+
+		case R_MN10300_ALIGN:
+			/* Just ignore the ALIGN relocs.
+			 * Only interesting if kernel performed relaxation. */
+			continue;
+
 		default:
 			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
 			       me->name, ELF32_R_TYPE(rel[i].r_info));
 			return -ENOEXEC;
 		}
 	}
+	if (sym_diff_seen) {
+		printk(KERN_ERR "module %s: Nothing follows SYM_DIFF relocation: %u\n",
+				       me->name, ELF32_R_TYPE(rel[i].r_info));
+		return -ENOEXEC;
+	}
 	return 0;
 }
 
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 234cf344cdce..892cce82867e 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -281,9 +281,6 @@ asmlinkage long sys_execve(char __user *name,
 	error = PTR_ERR(filename);
 	if (!IS_ERR(filename)) {
 		error = do_execve(filename, argv, envp, __frame);
-		if (error == 0)
-			current->ptrace &= ~PT_DTRACE;
-
 		putname(filename);
 	}