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 66ceffa0ecac086f0992ee0241dab3d4f99121af..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;
  }
  
-@@ -97,27 +248,44 @@ 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);
@@ -229,17 +229,14 @@
 -                     me->name);
 -              return -ENOEXEC;
 -      }
-+      if (*plt_offset == size)
-+              return 0;
- 
--      *location = (*location & ~0x03ffffff) |
--                  ((*location + (v >> 2)) & 0x03ffffff);
 +      *plt_offset += 4 * sizeof(int);
 +
 +      /* adjust carry for addiu */
 +      if (v & 0x00008000)
 +              v += 0x10000;
-+
+ 
+-      *location = (*location & ~0x03ffffff) |
+-                  ((*location + (v >> 2)) & 0x03ffffff);
 +      tramp[0] = 0x3c190000 | (v >> 16);      /* lui t9, hi16 */
 +      tramp[1] = 0x27390000 | (v & 0xffff);   /* addiu t9, t9, lo16 */
 +      tramp[2] = 0x03200008;                  /* jr t9 */
@@ -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;
  }
@@ -268,7 +265,7 @@
  {
        if (v % 4) {
                printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
-@@ -125,17 +293,31 @@ static int apply_r_mips_26_rela(struct m
+@@ -125,17 +290,31 @@ static int apply_r_mips_26_rela(struct m
        }
  
        if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
@@ -303,7 +300,7 @@
  static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
  {
        struct mips_hi16 *n;
-@@ -400,11 +582,23 @@ int module_finalize(const Elf_Ehdr *hdr,
+@@ -400,11 +579,23 @@ int module_finalize(const Elf_Ehdr *hdr,
                list_add(&me->arch.dbe_list, &dbe_list);
                spin_unlock_irq(&dbe_lock);
        }