mips: fix another bug in the module relocation change: the wrong base address for...

[openwrt/svn-archive/archive.git] / target / linux / generic-2.6 / patches-2.6.30 / 027-mips_module_reloc.patch

diff --git a/target/linux/generic-2.6/patches-2.6.30/027-mips_module_reloc.patch b/target/linux/generic-2.6/patches-2.6.30/027-mips_module_reloc.patch
index 912857b0ee0ed4e0779b75aa6e6db087e9a8cdb5..c10da0a6453c7f9b8eb684b92a2db77fea5fb0c6 100644 (file)
--- a/target/linux/generic-2.6/patches-2.6.30/027-mips_module_reloc.patch
+++ b/target/linux/generic-2.6/patches-2.6.30/027-mips_module_reloc.patch
@@ -209,13 +209,13 @@
        return 0;
  }
  
-@@ -97,45 +248,73 @@ static int apply_r_mips_32_rela(struct m
+@@ -97,27 +248,41 @@ static int apply_r_mips_32_rela(struct m
        return 0;
  }
  
 -static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
 +static Elf_Addr add_plt_entry_to(unsigned *plt_offset,
-+                               void *start, unsigned size, Elf_Addr v)
++                               void *start, Elf_Addr v)
  {
 -      if (v % 4) {
 -              printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
@@ -229,9 +229,6 @@
 -                     me->name);
 -              return -ENOEXEC;
 -      }
-+      if (*plt_offset == size)
-+              return 0;
-+
 +      *plt_offset += 4 * sizeof(int);
 +
 +      /* adjust carry for addiu */
@@ -253,12 +250,12 @@
 +      if (location >= me->module_core &&
 +          location < me->module_core + me->core_size)
 +              return add_plt_entry_to(&me->arch.core_plt_offset,
-+                              me->module_core, me->core_size, v);
++                              me->arch.plt_tbl, v);
 +
 +      if (location >= me->module_init &&
 +          location < me->module_init + me->init_size)
 +              return add_plt_entry_to(&me->arch.init_plt_offset,
-+                              me->module_init, me->init_size, v);
++                              me->arch.plt_tbl, v);
  
        return 0;
  }
@@ -268,16 +265,20 @@
  {
        if (v % 4) {
                printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
-               return -ENOEXEC;
+@@ -125,17 +290,31 @@ static int apply_r_mips_26_rela(struct m
        }
  
--      if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
-+      if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000) &&
-+          ((v = add_plt_entry(me, location, v + (ofs << 2))) == 0)) {
-               printk(KERN_ERR
+       if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
+-              printk(KERN_ERR
++          v = add_plt_entry(me, location, v + (ofs << 2));
++              if (!v) {
++                      printk(KERN_ERR
                       "module %s: relocation overflow\n",
                       me->name);
-               return -ENOEXEC;
+-              return -ENOEXEC;
++                      return -ENOEXEC;
++              }
++              ofs = 0;
        }
  
 -      *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);