generic: make the module reloc pacth work on mips64

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 37685

target/linux/generic/patches-3.10/305-mips_module_reloc.patch

@@ -1,6 +1,8 @@
---- a/arch/mips/Makefile
-+++ b/arch/mips/Makefile
-@@ -90,8 +90,13 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
+Index: linux-3.10/arch/mips/Makefile
+===================================================================
+--- linux-3.10.orig/arch/mips/Makefile	2013-08-04 14:03:15.323485386 +0200
++++ linux-3.10/arch/mips/Makefile	2013-08-04 14:03:15.379485387 +0200
+@@ -90,8 +90,13 @@
  cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
  cflags-y			+= -msoft-float
  LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib --gc-sections
@@ -14,9 +16,11 @@
  
  ifndef CONFIG_FUNCTION_TRACER
  KBUILD_CFLAGS_KERNEL		+= -ffunction-sections -fdata-sections
---- a/arch/mips/include/asm/module.h
-+++ b/arch/mips/include/asm/module.h
-@@ -11,6 +11,11 @@ struct mod_arch_specific {
+Index: linux-3.10/arch/mips/include/asm/module.h
+===================================================================
+--- linux-3.10.orig/arch/mips/include/asm/module.h	2013-07-01 00:13:29.000000000 +0200
++++ linux-3.10/arch/mips/include/asm/module.h	2013-08-04 14:03:15.383485387 +0200
+@@ -11,6 +11,11 @@
  	const struct exception_table_entry *dbe_start;
  	const struct exception_table_entry *dbe_end;
  	struct mips_hi16 *r_mips_hi16_list;
@@ -28,9 +32,11 @@
  };
  
  typedef uint8_t Elf64_Byte;		/* Type for a 8-bit quantity.  */
---- a/arch/mips/kernel/module.c
-+++ b/arch/mips/kernel/module.c
-@@ -42,14 +42,219 @@ struct mips_hi16 {
+Index: linux-3.10/arch/mips/kernel/module.c
+===================================================================
+--- linux-3.10.orig/arch/mips/kernel/module.c	2013-07-01 00:13:29.000000000 +0200
++++ linux-3.10/arch/mips/kernel/module.c	2013-08-04 15:31:24.995611431 +0200
+@@ -42,14 +42,222 @@
  static LIST_HEAD(dbe_list);
  static DEFINE_SPINLOCK(dbe_lock);
  
@@ -220,6 +226,14 @@
 +	unsigned int core_size, init_size;
 +	int i;
 +
++	mod->arch.phys_plt_offset = 0;
++	mod->arch.virt_plt_offset = 0;
++	mod->arch.phys_plt_tbl = NULL;
++	mod->arch.virt_plt_tbl = NULL;
++
++	if (IS_ENABLED(CONFIG_64BIT))
++		return 0;
++
 +	for (i = 1; i < hdr->e_shnum; i++)
 +		if (sechdrs[i].sh_type == SHT_SYMTAB)
 +			symindex = i;
@@ -227,11 +241,6 @@
 +	core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
 +	init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
 +
-+	mod->arch.phys_plt_offset = 0;
-+	mod->arch.virt_plt_offset = 0;
-+	mod->arch.phys_plt_tbl = NULL;
-+	mod->arch.virt_plt_tbl = NULL;
-+
 +	if ((core_size + init_size) == 0)
 +		return 0;
 +
@@ -251,7 +260,7 @@
  
  int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
  {
-@@ -63,8 +268,39 @@ static int apply_r_mips_32_rel(struct mo
+@@ -63,8 +271,39 @@
  	return 0;
  }
  
@@ -291,7 +300,7 @@
  	if (v % 4) {
  		pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
  		       me->name);
-@@ -72,14 +308,17 @@ static int apply_r_mips_26_rel(struct mo
+@@ -72,14 +311,17 @@
  	}
  
  	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
@@ -314,7 +323,7 @@
  
  	return 0;
  }
-@@ -286,11 +525,32 @@ int module_finalize(const Elf_Ehdr *hdr,
+@@ -286,11 +528,32 @@
  		list_add(&me->arch.dbe_list, &dbe_list);
  		spin_unlock_irq(&dbe_lock);
  	}