refresh no_module_reloc.patch for mips64 targets
SVN-Revision: 19382
This commit is contained in:
Florian Fainelli
parent
e077529d10
commit
7b5f0de029
3 changed files with 246 additions and 132 deletions
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@ -1,6 +1,7 @@
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--- a/arch/mips/Makefile
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+++ b/arch/mips/Makefile
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@@ -83,7 +83,7 @@ all-$(CONFIG_BOOT_ELF64) := $(vmlinux-64
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diff -urN linux-2.6.30.10/arch/mips/Makefile linux-2.6.30.10.new//arch/mips/Makefile
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--- linux-2.6.30.10/arch/mips/Makefile 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/Makefile 2009-12-04 07:00:07.000000000 +0100
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@@ -83,7 +83,7 @@
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -msoft-float
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LDFLAGS_vmlinux += -G 0 -static -n -nostdlib
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@ -9,23 +10,25 @@
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cflags-y += -ffreestanding
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--- a/arch/mips/include/asm/module.h
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+++ b/arch/mips/include/asm/module.h
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@@ -9,11 +9,6 @@ struct mod_arch_specific {
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diff -urN linux-2.6.30.10/arch/mips/include/asm/module.h linux-2.6.30.10.new//arch/mips/include/asm/module.h
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--- linux-2.6.30.10/arch/mips/include/asm/module.h 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/include/asm/module.h 2009-12-04 07:00:07.000000000 +0100
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@@ -9,11 +9,6 @@
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struct list_head dbe_list;
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const struct exception_table_entry *dbe_start;
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const struct exception_table_entry *dbe_end;
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-
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- void *plt_tbl;
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- unsigned int core_plt_offset;
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- unsigned int core_plt_size;
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- unsigned int init_plt_offset;
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- void *phys_plt_tbl;
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- void *virt_plt_tbl;
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- unsigned int phys_plt_offset;
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- unsigned int virt_plt_offset;
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};
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typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
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--- a/arch/mips/kernel/module.c
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+++ b/arch/mips/kernel/module.c
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@@ -43,116 +43,6 @@ static struct mips_hi16 *mips_hi16_list;
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diff -urN linux-2.6.30.10/arch/mips/kernel/module.c linux-2.6.30.10.new//arch/mips/kernel/module.c
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--- linux-2.6.30.10/arch/mips/kernel/module.c 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/kernel/module.c 2009-12-04 07:00:07.000000000 +0100
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@@ -43,116 +43,6 @@
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static LIST_HEAD(dbe_list);
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static DEFINE_SPINLOCK(dbe_lock);
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@ -142,7 +145,7 @@
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void *module_alloc(unsigned long size)
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{
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#ifdef MODULE_START
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@@ -168,45 +58,16 @@ void *module_alloc(unsigned long size)
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@@ -168,101 +58,23 @@
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return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
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#else
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@ -190,7 +193,26 @@
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/* FIXME: If module_region == mod->init_region, trim exception
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table entries. */
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}
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@@ -214,24 +75,6 @@ void module_free(struct module *mod, voi
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-static void *__module_alloc(int size, bool phys)
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-{
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- void *ptr;
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-
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- if (phys)
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- ptr = kmalloc(size, GFP_KERNEL);
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- else
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- ptr = vmalloc(size);
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- return ptr;
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-}
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-
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-static void __module_free(void *ptr)
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-{
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- if (is_phys_addr(ptr))
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- kfree(ptr);
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- else
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- vfree(ptr);
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-}
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-
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int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
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char *secstrings, struct module *mod)
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{
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@ -205,17 +227,29 @@
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- core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
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- init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
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-
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- mod->arch.core_plt_offset = 0;
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- mod->arch.core_plt_size = core_size;
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- mod->arch.init_plt_offset = core_size;
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- mod->arch.plt_tbl = kmalloc(core_size + init_size, GFP_KERNEL);
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- if (!mod->arch.plt_tbl)
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- mod->arch.phys_plt_offset = 0;
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- mod->arch.virt_plt_offset = 0;
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- mod->arch.phys_plt_tbl = NULL;
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- mod->arch.virt_plt_tbl = NULL;
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-
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- if ((core_size + init_size) == 0)
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- return 0;
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-
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- mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
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- if (!mod->arch.phys_plt_tbl)
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- return -ENOMEM;
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-
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- mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
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- if (!mod->arch.virt_plt_tbl) {
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- __module_free(mod->arch.phys_plt_tbl);
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- mod->arch.phys_plt_tbl = NULL;
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- return -ENOMEM;
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- }
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-
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return 0;
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}
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@@ -254,41 +97,27 @@ static int apply_r_mips_32_rela(struct m
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@@ -285,37 +97,27 @@
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return 0;
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}
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@ -235,20 +269,13 @@
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- tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
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- tramp[2] = 0x03200008; /* jr t9 */
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- tramp[3] = 0x00000000; /* nop */
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-
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- return (Elf_Addr) tramp;
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-}
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+ if (v % 4) {
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+ printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
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+ return -ENOEXEC;
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+ }
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-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
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-{
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- if (location >= me->module_core &&
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- location < me->module_core + me->core_size)
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- return add_plt_entry_to(&me->arch.core_plt_offset,
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- me->arch.plt_tbl, v);
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- return (Elf_Addr) tramp;
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-}
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+ if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
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+ printk(KERN_ERR
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+ "module %s: relocation overflow\n",
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@ -256,14 +283,18 @@
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+ return -ENOEXEC;
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+ }
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- if (location >= me->module_init &&
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- location < me->module_init + me->init_size)
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- return add_plt_entry_to(&me->arch.init_plt_offset,
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- me->arch.plt_tbl, v);
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-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
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-{
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- if (is_phys_addr(location))
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- return add_plt_entry_to(&me->arch.phys_plt_offset,
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- me->arch.phys_plt_tbl, v);
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- else
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- return add_plt_entry_to(&me->arch.virt_plt_offset,
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- me->arch.virt_plt_tbl, v);
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+ *location = (*location & ~0x03ffffff) |
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+ ((*location + (v >> 2)) & 0x03ffffff);
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return 0;
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+ return 0;
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}
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-static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
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@ -271,7 +302,7 @@
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{
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if (v % 4) {
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printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
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@@ -296,31 +125,17 @@ static int set_r_mips_26(struct module *
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@@ -323,31 +125,17 @@
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}
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if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
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@ -306,18 +337,20 @@
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static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
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{
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struct mips_hi16 *n;
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@@ -585,23 +400,11 @@ int module_finalize(const Elf_Ehdr *hdr,
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@@ -612,32 +400,11 @@
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list_add(&me->arch.dbe_list, &dbe_list);
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spin_unlock_irq(&dbe_lock);
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}
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-
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- /* Get rid of the fixup trampoline if we're running the module
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- * from physically mapped address space */
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- if (me->arch.core_plt_offset == 0 &&
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- me->arch.init_plt_offset == me->arch.core_plt_size &&
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- is_phys_addr(me->module_core)) {
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- kfree(me->arch.plt_tbl);
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- me->arch.plt_tbl = NULL;
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- if (me->arch.phys_plt_offset == 0) {
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- __module_free(me->arch.phys_plt_tbl);
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- me->arch.phys_plt_tbl = NULL;
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- }
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- if (me->arch.virt_plt_offset == 0) {
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- __module_free(me->arch.virt_plt_tbl);
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- me->arch.virt_plt_tbl = NULL;
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- }
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-
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return 0;
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@ -325,8 +358,15 @@
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void module_arch_cleanup(struct module *mod)
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{
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- if (mod->arch.plt_tbl)
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- kfree(mod->arch.plt_tbl);
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- if (mod->arch.phys_plt_tbl) {
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- __module_free(mod->arch.phys_plt_tbl);
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- mod->arch.phys_plt_tbl = NULL;
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- }
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- if (mod->arch.virt_plt_tbl) {
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- __module_free(mod->arch.virt_plt_tbl);
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- mod->arch.virt_plt_tbl = NULL;
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- }
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-
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spin_lock_irq(&dbe_lock);
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list_del(&mod->arch.dbe_list);
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spin_unlock_irq(&dbe_lock);
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@ -1,6 +1,6 @@
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diff -urN linux-2.6.30.7/arch/mips/Makefile linux-2.6.30.7.new/arch/mips/Makefile
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--- linux-2.6.30.7/arch/mips/Makefile 2009-09-27 13:17:16.000000000 +0200
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+++ linux-2.6.30.7.new/arch/mips/Makefile 2009-09-15 19:46:05.000000000 +0200
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diff -urN linux-2.6.30.10/arch/mips/Makefile linux-2.6.30.10.new//arch/mips/Makefile
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--- linux-2.6.30.10/arch/mips/Makefile 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/Makefile 2009-12-04 07:00:07.000000000 +0100
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@@ -83,7 +83,7 @@
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
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cflags-y += -msoft-float
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@ -10,24 +10,24 @@ diff -urN linux-2.6.30.7/arch/mips/Makefile linux-2.6.30.7.new/arch/mips/Makefil
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cflags-y += -ffreestanding
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diff -urN linux-2.6.30.7/arch/mips/include/asm/module.h linux-2.6.30.7.new/arch/mips/include/asm/module.h
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--- linux-2.6.30.7/arch/mips/include/asm/module.h 2009-09-27 13:17:16.000000000 +0200
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+++ linux-2.6.30.7.new/arch/mips/include/asm/module.h 2009-09-15 19:46:05.000000000 +0200
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diff -urN linux-2.6.30.10/arch/mips/include/asm/module.h linux-2.6.30.10.new//arch/mips/include/asm/module.h
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--- linux-2.6.30.10/arch/mips/include/asm/module.h 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/include/asm/module.h 2009-12-04 07:00:07.000000000 +0100
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@@ -9,11 +9,6 @@
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struct list_head dbe_list;
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const struct exception_table_entry *dbe_start;
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const struct exception_table_entry *dbe_end;
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-
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- void *plt_tbl;
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- unsigned int core_plt_offset;
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- unsigned int core_plt_size;
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- unsigned int init_plt_offset;
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- void *phys_plt_tbl;
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- void *virt_plt_tbl;
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- unsigned int phys_plt_offset;
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- unsigned int virt_plt_offset;
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};
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typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
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diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/kernel/module.c
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--- linux-2.6.30.7/arch/mips/kernel/module.c 2009-09-27 13:17:16.000000000 +0200
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+++ linux-2.6.30.7.new/arch/mips/kernel/module.c 2009-09-15 19:46:05.000000000 +0200
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diff -urN linux-2.6.30.10/arch/mips/kernel/module.c linux-2.6.30.10.new//arch/mips/kernel/module.c
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--- linux-2.6.30.10/arch/mips/kernel/module.c 2010-01-29 16:12:01.000000000 +0100
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+++ linux-2.6.30.10.new//arch/mips/kernel/module.c 2009-12-04 07:00:07.000000000 +0100
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@@ -43,116 +43,6 @@
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static LIST_HEAD(dbe_list);
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static DEFINE_SPINLOCK(dbe_lock);
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@ -145,7 +145,7 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
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void *module_alloc(unsigned long size)
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{
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#ifdef MODULE_START
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@@ -168,45 +58,16 @@
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@@ -168,101 +58,23 @@
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return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
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#else
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@ -193,7 +193,26 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
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/* FIXME: If module_region == mod->init_region, trim exception
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table entries. */
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}
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@@ -214,24 +75,6 @@
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-static void *__module_alloc(int size, bool phys)
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-{
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- void *ptr;
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-
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- if (phys)
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- ptr = kmalloc(size, GFP_KERNEL);
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- else
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- ptr = vmalloc(size);
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- return ptr;
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-}
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-
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-static void __module_free(void *ptr)
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-{
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- if (is_phys_addr(ptr))
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- kfree(ptr);
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- else
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- vfree(ptr);
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-}
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-
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int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
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char *secstrings, struct module *mod)
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{
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@ -208,17 +227,29 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
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- core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
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- init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
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-
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- mod->arch.core_plt_offset = 0;
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- mod->arch.core_plt_size = core_size;
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- mod->arch.init_plt_offset = core_size;
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- mod->arch.plt_tbl = kmalloc(core_size + init_size, GFP_KERNEL);
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- if (!mod->arch.plt_tbl)
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- mod->arch.phys_plt_offset = 0;
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- mod->arch.virt_plt_offset = 0;
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- mod->arch.phys_plt_tbl = NULL;
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- mod->arch.virt_plt_tbl = NULL;
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-
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- if ((core_size + init_size) == 0)
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- return 0;
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-
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- mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
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- if (!mod->arch.phys_plt_tbl)
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- return -ENOMEM;
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-
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- mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
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- if (!mod->arch.virt_plt_tbl) {
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- __module_free(mod->arch.phys_plt_tbl);
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- mod->arch.phys_plt_tbl = NULL;
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- return -ENOMEM;
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- }
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-
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return 0;
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}
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@@ -254,41 +97,27 @@
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@@ -285,37 +97,27 @@
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return 0;
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}
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@ -238,20 +269,13 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
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- tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
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- tramp[2] = 0x03200008; /* jr t9 */
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- tramp[3] = 0x00000000; /* nop */
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-
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- return (Elf_Addr) tramp;
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-}
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+ if (v % 4) {
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+ printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
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+ return -ENOEXEC;
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+ }
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-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
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-{
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- if (location >= me->module_core &&
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- location < me->module_core + me->core_size)
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- return add_plt_entry_to(&me->arch.core_plt_offset,
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- me->arch.plt_tbl, v);
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- return (Elf_Addr) tramp;
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-}
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+ if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
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+ printk(KERN_ERR
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+ "module %s: relocation overflow\n",
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@ -259,14 +283,18 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
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+ return -ENOEXEC;
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+ }
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- if (location >= me->module_init &&
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- location < me->module_init + me->init_size)
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- return add_plt_entry_to(&me->arch.init_plt_offset,
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- me->arch.plt_tbl, v);
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-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
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||||
-{
|
||||
- if (is_phys_addr(location))
|
||||
- return add_plt_entry_to(&me->arch.phys_plt_offset,
|
||||
- me->arch.phys_plt_tbl, v);
|
||||
- else
|
||||
- return add_plt_entry_to(&me->arch.virt_plt_offset,
|
||||
- me->arch.virt_plt_tbl, v);
|
||||
+ *location = (*location & ~0x03ffffff) |
|
||||
+ ((*location + (v >> 2)) & 0x03ffffff);
|
||||
|
||||
return 0;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
-static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
|
||||
|
|
@ -274,7 +302,7 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
{
|
||||
if (v % 4) {
|
||||
printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
||||
@@ -296,31 +125,17 @@
|
||||
@@ -323,31 +125,17 @@
|
||||
}
|
||||
|
||||
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
|
||||
|
|
@ -309,18 +337,20 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
|
||||
{
|
||||
struct mips_hi16 *n;
|
||||
@@ -585,23 +400,11 @@
|
||||
@@ -612,32 +400,11 @@
|
||||
list_add(&me->arch.dbe_list, &dbe_list);
|
||||
spin_unlock_irq(&dbe_lock);
|
||||
}
|
||||
-
|
||||
- /* Get rid of the fixup trampoline if we're running the module
|
||||
- * from physically mapped address space */
|
||||
- if (me->arch.core_plt_offset == 0 &&
|
||||
- me->arch.init_plt_offset == me->arch.core_plt_size &&
|
||||
- is_phys_addr(me->module_core)) {
|
||||
- kfree(me->arch.plt_tbl);
|
||||
- me->arch.plt_tbl = NULL;
|
||||
- if (me->arch.phys_plt_offset == 0) {
|
||||
- __module_free(me->arch.phys_plt_tbl);
|
||||
- me->arch.phys_plt_tbl = NULL;
|
||||
- }
|
||||
- if (me->arch.virt_plt_offset == 0) {
|
||||
- __module_free(me->arch.virt_plt_tbl);
|
||||
- me->arch.virt_plt_tbl = NULL;
|
||||
- }
|
||||
-
|
||||
return 0;
|
||||
|
|
@ -328,8 +358,15 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
|
||||
void module_arch_cleanup(struct module *mod)
|
||||
{
|
||||
- if (mod->arch.plt_tbl)
|
||||
- kfree(mod->arch.plt_tbl);
|
||||
- if (mod->arch.phys_plt_tbl) {
|
||||
- __module_free(mod->arch.phys_plt_tbl);
|
||||
- mod->arch.phys_plt_tbl = NULL;
|
||||
- }
|
||||
- if (mod->arch.virt_plt_tbl) {
|
||||
- __module_free(mod->arch.virt_plt_tbl);
|
||||
- mod->arch.virt_plt_tbl = NULL;
|
||||
- }
|
||||
-
|
||||
spin_lock_irq(&dbe_lock);
|
||||
list_del(&mod->arch.dbe_list);
|
||||
spin_unlock_irq(&dbe_lock);
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
diff -urN linux-2.6.30.7/arch/mips/Makefile linux-2.6.30.7.new/arch/mips/Makefile
|
||||
--- linux-2.6.30.7/arch/mips/Makefile 2009-09-27 13:17:16.000000000 +0200
|
||||
+++ linux-2.6.30.7.new/arch/mips/Makefile 2009-09-15 19:46:05.000000000 +0200
|
||||
diff -urN linux-2.6.30.10/arch/mips/Makefile linux-2.6.30.10.new//arch/mips/Makefile
|
||||
--- linux-2.6.30.10/arch/mips/Makefile 2010-01-29 16:12:01.000000000 +0100
|
||||
+++ linux-2.6.30.10.new//arch/mips/Makefile 2009-12-04 07:00:07.000000000 +0100
|
||||
@@ -83,7 +83,7 @@
|
||||
cflags-y += -G 0 -mno-abicalls -fno-pic -pipe
|
||||
cflags-y += -msoft-float
|
||||
|
|
@ -10,24 +10,24 @@ diff -urN linux-2.6.30.7/arch/mips/Makefile linux-2.6.30.7.new/arch/mips/Makefil
|
|||
|
||||
cflags-y += -ffreestanding
|
||||
|
||||
diff -urN linux-2.6.30.7/arch/mips/include/asm/module.h linux-2.6.30.7.new/arch/mips/include/asm/module.h
|
||||
--- linux-2.6.30.7/arch/mips/include/asm/module.h 2009-09-27 13:17:16.000000000 +0200
|
||||
+++ linux-2.6.30.7.new/arch/mips/include/asm/module.h 2009-09-15 19:46:05.000000000 +0200
|
||||
diff -urN linux-2.6.30.10/arch/mips/include/asm/module.h linux-2.6.30.10.new//arch/mips/include/asm/module.h
|
||||
--- linux-2.6.30.10/arch/mips/include/asm/module.h 2010-01-29 16:12:01.000000000 +0100
|
||||
+++ linux-2.6.30.10.new//arch/mips/include/asm/module.h 2009-12-04 07:00:07.000000000 +0100
|
||||
@@ -9,11 +9,6 @@
|
||||
struct list_head dbe_list;
|
||||
const struct exception_table_entry *dbe_start;
|
||||
const struct exception_table_entry *dbe_end;
|
||||
-
|
||||
- void *plt_tbl;
|
||||
- unsigned int core_plt_offset;
|
||||
- unsigned int core_plt_size;
|
||||
- unsigned int init_plt_offset;
|
||||
- void *phys_plt_tbl;
|
||||
- void *virt_plt_tbl;
|
||||
- unsigned int phys_plt_offset;
|
||||
- unsigned int virt_plt_offset;
|
||||
};
|
||||
|
||||
typedef uint8_t Elf64_Byte; /* Type for a 8-bit quantity. */
|
||||
diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/kernel/module.c
|
||||
--- linux-2.6.30.7/arch/mips/kernel/module.c 2009-09-27 13:17:16.000000000 +0200
|
||||
+++ linux-2.6.30.7.new/arch/mips/kernel/module.c 2009-09-15 19:46:05.000000000 +0200
|
||||
diff -urN linux-2.6.30.10/arch/mips/kernel/module.c linux-2.6.30.10.new//arch/mips/kernel/module.c
|
||||
--- linux-2.6.30.10/arch/mips/kernel/module.c 2010-01-29 16:12:01.000000000 +0100
|
||||
+++ linux-2.6.30.10.new//arch/mips/kernel/module.c 2009-12-04 07:00:07.000000000 +0100
|
||||
@@ -43,116 +43,6 @@
|
||||
static LIST_HEAD(dbe_list);
|
||||
static DEFINE_SPINLOCK(dbe_lock);
|
||||
|
|
@ -145,7 +145,7 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
void *module_alloc(unsigned long size)
|
||||
{
|
||||
#ifdef MODULE_START
|
||||
@@ -168,45 +58,16 @@
|
||||
@@ -168,101 +58,23 @@
|
||||
|
||||
return __vmalloc_area(area, GFP_KERNEL, PAGE_KERNEL);
|
||||
#else
|
||||
|
|
@ -193,7 +193,26 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
/* FIXME: If module_region == mod->init_region, trim exception
|
||||
table entries. */
|
||||
}
|
||||
@@ -214,24 +75,6 @@
|
||||
|
||||
-static void *__module_alloc(int size, bool phys)
|
||||
-{
|
||||
- void *ptr;
|
||||
-
|
||||
- if (phys)
|
||||
- ptr = kmalloc(size, GFP_KERNEL);
|
||||
- else
|
||||
- ptr = vmalloc(size);
|
||||
- return ptr;
|
||||
-}
|
||||
-
|
||||
-static void __module_free(void *ptr)
|
||||
-{
|
||||
- if (is_phys_addr(ptr))
|
||||
- kfree(ptr);
|
||||
- else
|
||||
- vfree(ptr);
|
||||
-}
|
||||
-
|
||||
int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
|
||||
char *secstrings, struct module *mod)
|
||||
{
|
||||
|
|
@ -208,17 +227,29 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
- core_size = get_plt_size(hdr, sechdrs, secstrings, symindex, false);
|
||||
- init_size = get_plt_size(hdr, sechdrs, secstrings, symindex, true);
|
||||
-
|
||||
- mod->arch.core_plt_offset = 0;
|
||||
- mod->arch.core_plt_size = core_size;
|
||||
- mod->arch.init_plt_offset = core_size;
|
||||
- mod->arch.plt_tbl = kmalloc(core_size + init_size, GFP_KERNEL);
|
||||
- if (!mod->arch.plt_tbl)
|
||||
- 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;
|
||||
-
|
||||
- mod->arch.phys_plt_tbl = __module_alloc(core_size + init_size, 1);
|
||||
- if (!mod->arch.phys_plt_tbl)
|
||||
- return -ENOMEM;
|
||||
-
|
||||
- mod->arch.virt_plt_tbl = __module_alloc(core_size + init_size, 0);
|
||||
- if (!mod->arch.virt_plt_tbl) {
|
||||
- __module_free(mod->arch.phys_plt_tbl);
|
||||
- mod->arch.phys_plt_tbl = NULL;
|
||||
- return -ENOMEM;
|
||||
- }
|
||||
-
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -254,41 +97,27 @@
|
||||
@@ -285,37 +97,27 @@
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -238,20 +269,13 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
- tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */
|
||||
- tramp[2] = 0x03200008; /* jr t9 */
|
||||
- tramp[3] = 0x00000000; /* nop */
|
||||
-
|
||||
- return (Elf_Addr) tramp;
|
||||
-}
|
||||
+ if (v % 4) {
|
||||
+ printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
||||
+ return -ENOEXEC;
|
||||
+ }
|
||||
|
||||
-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
|
||||
-{
|
||||
- if (location >= me->module_core &&
|
||||
- location < me->module_core + me->core_size)
|
||||
- return add_plt_entry_to(&me->arch.core_plt_offset,
|
||||
- me->arch.plt_tbl, v);
|
||||
- return (Elf_Addr) tramp;
|
||||
-}
|
||||
+ if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
|
||||
+ printk(KERN_ERR
|
||||
+ "module %s: relocation overflow\n",
|
||||
|
|
@ -259,14 +283,18 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
+ return -ENOEXEC;
|
||||
+ }
|
||||
|
||||
- if (location >= me->module_init &&
|
||||
- location < me->module_init + me->init_size)
|
||||
- return add_plt_entry_to(&me->arch.init_plt_offset,
|
||||
- me->arch.plt_tbl, v);
|
||||
-static Elf_Addr add_plt_entry(struct module *me, void *location, Elf_Addr v)
|
||||
-{
|
||||
- if (is_phys_addr(location))
|
||||
- return add_plt_entry_to(&me->arch.phys_plt_offset,
|
||||
- me->arch.phys_plt_tbl, v);
|
||||
- else
|
||||
- return add_plt_entry_to(&me->arch.virt_plt_offset,
|
||||
- me->arch.virt_plt_tbl, v);
|
||||
+ *location = (*location & ~0x03ffffff) |
|
||||
+ ((*location + (v >> 2)) & 0x03ffffff);
|
||||
|
||||
return 0;
|
||||
+ return 0;
|
||||
}
|
||||
|
||||
-static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
|
||||
|
|
@ -274,7 +302,7 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
{
|
||||
if (v % 4) {
|
||||
printk(KERN_ERR "module %s: dangerous relocation\n", me->name);
|
||||
@@ -296,31 +125,17 @@
|
||||
@@ -323,31 +125,17 @@
|
||||
}
|
||||
|
||||
if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
|
||||
|
|
@ -309,18 +337,20 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
|
||||
{
|
||||
struct mips_hi16 *n;
|
||||
@@ -585,23 +400,11 @@
|
||||
@@ -612,32 +400,11 @@
|
||||
list_add(&me->arch.dbe_list, &dbe_list);
|
||||
spin_unlock_irq(&dbe_lock);
|
||||
}
|
||||
-
|
||||
- /* Get rid of the fixup trampoline if we're running the module
|
||||
- * from physically mapped address space */
|
||||
- if (me->arch.core_plt_offset == 0 &&
|
||||
- me->arch.init_plt_offset == me->arch.core_plt_size &&
|
||||
- is_phys_addr(me->module_core)) {
|
||||
- kfree(me->arch.plt_tbl);
|
||||
- me->arch.plt_tbl = NULL;
|
||||
- if (me->arch.phys_plt_offset == 0) {
|
||||
- __module_free(me->arch.phys_plt_tbl);
|
||||
- me->arch.phys_plt_tbl = NULL;
|
||||
- }
|
||||
- if (me->arch.virt_plt_offset == 0) {
|
||||
- __module_free(me->arch.virt_plt_tbl);
|
||||
- me->arch.virt_plt_tbl = NULL;
|
||||
- }
|
||||
-
|
||||
return 0;
|
||||
|
|
@ -328,8 +358,15 @@ diff -urN linux-2.6.30.7/arch/mips/kernel/module.c linux-2.6.30.7.new/arch/mips/
|
|||
|
||||
void module_arch_cleanup(struct module *mod)
|
||||
{
|
||||
- if (mod->arch.plt_tbl)
|
||||
- kfree(mod->arch.plt_tbl);
|
||||
- if (mod->arch.phys_plt_tbl) {
|
||||
- __module_free(mod->arch.phys_plt_tbl);
|
||||
- mod->arch.phys_plt_tbl = NULL;
|
||||
- }
|
||||
- if (mod->arch.virt_plt_tbl) {
|
||||
- __module_free(mod->arch.virt_plt_tbl);
|
||||
- mod->arch.virt_plt_tbl = NULL;
|
||||
- }
|
||||
-
|
||||
spin_lock_irq(&dbe_lock);
|
||||
list_del(&mod->arch.dbe_list);
|
||||
spin_unlock_irq(&dbe_lock);
|
||||
|
|
|
|||
Loading…
Reference in a new issue