mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-11-19 15:05:12 +01:00
mips: fix another bug in the module relocation change: the wrong base address for 24 bit jump -> long jump fixup table was used
SVN-Revision: 16904
This commit is contained in:
Felix Fietkau
parent
cf2c544844
commit
1685ce5f3d
@ -209,13 +209,13 @@
|
|||||||
return 0;
|
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;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
|
-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,
|
+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) {
|
- if (v % 4) {
|
||||||
- printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
- printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
||||||
@ -229,17 +229,14 @@
|
|||||||
- me->name);
|
- me->name);
|
||||||
- return -ENOEXEC;
|
- return -ENOEXEC;
|
||||||
- }
|
- }
|
||||||
+ if (*plt_offset == size)
|
|
||||||
+ return 0;
|
|
||||||
|
|
||||||
- *location = (*location & ~0x03ffffff) |
|
|
||||||
- ((*location + (v >> 2)) & 0x03ffffff);
|
|
||||||
+ *plt_offset += 4 * sizeof(int);
|
+ *plt_offset += 4 * sizeof(int);
|
||||||
+
|
+
|
||||||
+ /* adjust carry for addiu */
|
+ /* adjust carry for addiu */
|
||||||
+ if (v & 0x00008000)
|
+ if (v & 0x00008000)
|
||||||
+ v += 0x10000;
|
+ v += 0x10000;
|
||||||
+
|
|
||||||
|
- *location = (*location & ~0x03ffffff) |
|
||||||
|
- ((*location + (v >> 2)) & 0x03ffffff);
|
||||||
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
|
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
|
||||||
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
|
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
|
||||||
+ tramp[2] = 0x03200008; /* jr t9 */
|
+ tramp[2] = 0x03200008; /* jr t9 */
|
||||||
@ -253,12 +250,12 @@
|
|||||||
+ if (location >= me->module_core &&
|
+ if (location >= me->module_core &&
|
||||||
+ location < me->module_core + me->core_size)
|
+ location < me->module_core + me->core_size)
|
||||||
+ return add_plt_entry_to(&me->arch.core_plt_offset,
|
+ 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 &&
|
+ if (location >= me->module_init &&
|
||||||
+ location < me->module_init + me->init_size)
|
+ location < me->module_init + me->init_size)
|
||||||
+ return add_plt_entry_to(&me->arch.init_plt_offset,
|
+ return add_plt_entry_to(&me->arch.init_plt_offset,
|
||||||
+ me->module_init, me->init_size, v);
|
+ me->arch.plt_tbl, v);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
@ -268,7 +265,7 @@
|
|||||||
{
|
{
|
||||||
if (v % 4) {
|
if (v % 4) {
|
||||||
printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
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)) {
|
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)
|
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
|
||||||
{
|
{
|
||||||
struct mips_hi16 *n;
|
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);
|
list_add(&me->arch.dbe_list, &dbe_list);
|
||||||
spin_unlock_irq(&dbe_lock);
|
spin_unlock_irq(&dbe_lock);
|
||||||
}
|
}
|
||||||
|
|||||||
@ -209,13 +209,13 @@
|
|||||||
return 0;
|
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;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
-static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
|
-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,
|
+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) {
|
- if (v % 4) {
|
||||||
- printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
- printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
||||||
@ -229,17 +229,14 @@
|
|||||||
- me->name);
|
- me->name);
|
||||||
- return -ENOEXEC;
|
- return -ENOEXEC;
|
||||||
- }
|
- }
|
||||||
+ if (*plt_offset == size)
|
|
||||||
+ return 0;
|
|
||||||
|
|
||||||
- *location = (*location & ~0x03ffffff) |
|
|
||||||
- ((*location + (v >> 2)) & 0x03ffffff);
|
|
||||||
+ *plt_offset += 4 * sizeof(int);
|
+ *plt_offset += 4 * sizeof(int);
|
||||||
+
|
+
|
||||||
+ /* adjust carry for addiu */
|
+ /* adjust carry for addiu */
|
||||||
+ if (v & 0x00008000)
|
+ if (v & 0x00008000)
|
||||||
+ v += 0x10000;
|
+ v += 0x10000;
|
||||||
+
|
|
||||||
|
- *location = (*location & ~0x03ffffff) |
|
||||||
|
- ((*location + (v >> 2)) & 0x03ffffff);
|
||||||
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
|
+ tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */
|
||||||
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
|
+ tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
|
||||||
+ tramp[2] = 0x03200008; /* jr t9 */
|
+ tramp[2] = 0x03200008; /* jr t9 */
|
||||||
@ -253,12 +250,12 @@
|
|||||||
+ if (location >= me->module_core &&
|
+ if (location >= me->module_core &&
|
||||||
+ location < me->module_core + me->core_size)
|
+ location < me->module_core + me->core_size)
|
||||||
+ return add_plt_entry_to(&me->arch.core_plt_offset,
|
+ 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 &&
|
+ if (location >= me->module_init &&
|
||||||
+ location < me->module_init + me->init_size)
|
+ location < me->module_init + me->init_size)
|
||||||
+ return add_plt_entry_to(&me->arch.init_plt_offset,
|
+ return add_plt_entry_to(&me->arch.init_plt_offset,
|
||||||
+ me->module_init, me->init_size, v);
|
+ me->arch.plt_tbl, v);
|
||||||
|
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
@ -268,7 +265,7 @@
|
|||||||
{
|
{
|
||||||
if (v % 4) {
|
if (v % 4) {
|
||||||
printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
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)) {
|
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)
|
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
|
||||||
{
|
{
|
||||||
struct mips_hi16 *n;
|
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);
|
list_add(&me->arch.dbe_list, &dbe_list);
|
||||||
spin_unlock_irq(&dbe_lock);
|
spin_unlock_irq(&dbe_lock);
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user