diff options
| -rw-r--r-- | target/linux/cobalt/patches-2.6.39/001-no_module_reloc.patch | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/target/linux/cobalt/patches-2.6.39/001-no_module_reloc.patch b/target/linux/cobalt/patches-2.6.39/001-no_module_reloc.patch deleted file mode 100644 index f0e34cbea..000000000 --- a/target/linux/cobalt/patches-2.6.39/001-no_module_reloc.patch +++ /dev/null @@ -1,370 +0,0 @@ ---- a/arch/mips/include/asm/module.h -+++ b/arch/mips/include/asm/module.h -@@ -9,11 +9,6 @@ struct mod_arch_specific { - struct list_head dbe_list; - const struct exception_table_entry *dbe_start; - const struct exception_table_entry *dbe_end; -- -- 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. */ ---- a/arch/mips/kernel/module.c -+++ b/arch/mips/kernel/module.c -@@ -45,117 +45,6 @@ static struct mips_hi16 *mips_hi16_list; - static LIST_HEAD(dbe_list); - static DEFINE_SPINLOCK(dbe_lock); - --/* -- * Get the potential max trampolines size required of the init and -- * non-init sections. Only used if we cannot find enough contiguous -- * physically mapped memory to put the module into. -- */ --static unsigned int --get_plt_size(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, -- const char *secstrings, unsigned int symindex, bool is_init) --{ -- unsigned long ret = 0; -- unsigned int i, j; -- Elf_Sym *syms; -- -- /* Everything marked ALLOC (this includes the exported symbols) */ -- for (i = 1; i < hdr->e_shnum; ++i) { -- unsigned int info = sechdrs[i].sh_info; -- -- if (sechdrs[i].sh_type != SHT_REL -- && sechdrs[i].sh_type != SHT_RELA) -- continue; -- -- /* Not a valid relocation section? */ -- if (info >= hdr->e_shnum) -- continue; -- -- /* Don't bother with non-allocated sections */ -- if (!(sechdrs[info].sh_flags & SHF_ALLOC)) -- continue; -- -- /* If it's called *.init*, and we're not init, we're -- not interested */ -- if ((strstr(secstrings + sechdrs[i].sh_name, ".init") != 0) -- != is_init) -- continue; -- -- syms = (Elf_Sym *) sechdrs[symindex].sh_addr; -- if (sechdrs[i].sh_type == SHT_REL) { -- Elf_Mips_Rel *rel = (void *) sechdrs[i].sh_addr; -- unsigned int size = sechdrs[i].sh_size / sizeof(*rel); -- -- for (j = 0; j < size; ++j) { -- Elf_Sym *sym; -- -- if (ELF_MIPS_R_TYPE(rel[j]) != R_MIPS_26) -- continue; -- -- sym = syms + ELF_MIPS_R_SYM(rel[j]); -- if (!is_init && sym->st_shndx != SHN_UNDEF) -- continue; -- -- ret += 4 * sizeof(int); -- } -- } else { -- Elf_Mips_Rela *rela = (void *) sechdrs[i].sh_addr; -- unsigned int size = sechdrs[i].sh_size / sizeof(*rela); -- -- for (j = 0; j < size; ++j) { -- Elf_Sym *sym; -- -- if (ELF_MIPS_R_TYPE(rela[j]) != R_MIPS_26) -- continue; -- -- sym = syms + ELF_MIPS_R_SYM(rela[j]); -- if (!is_init && sym->st_shndx != SHN_UNDEF) -- continue; -- -- ret += 4 * sizeof(int); -- } -- } -- } -- -- return ret; --} -- --#ifndef MODULE_START --static void *alloc_phys(unsigned long size) --{ -- unsigned order; -- struct page *page; -- struct page *p; -- -- size = PAGE_ALIGN(size); -- order = get_order(size); -- -- page = alloc_pages(GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN | -- __GFP_THISNODE, order); -- if (!page) -- return NULL; -- -- split_page(page, order); -- -- for (p = page + (size >> PAGE_SHIFT); p < page + (1 << order); ++p) -- __free_page(p); -- -- return page_address(page); --} --#endif -- --static void free_phys(void *ptr, unsigned long size) --{ -- struct page *page; -- struct page *end; -- -- page = virt_to_page(ptr); -- end = page + (PAGE_ALIGN(size) >> PAGE_SHIFT); -- -- for (; page < end; ++page) -- __free_page(page); --} -- -- - void *module_alloc(unsigned long size) - { - #ifdef MODULE_START -@@ -163,99 +52,21 @@ void *module_alloc(unsigned long size) - GFP_KERNEL, PAGE_KERNEL, -1, - __builtin_return_address(0)); - #else -- void *ptr; -- - if (size == 0) - return NULL; -- -- ptr = alloc_phys(size); -- -- /* If we failed to allocate physically contiguous memory, -- * fall back to regular vmalloc. The module loader code will -- * create jump tables to handle long jumps */ -- if (!ptr) -- return vmalloc(size); -- -- return ptr; --#endif --} -- --static inline bool is_phys_addr(void *ptr) --{ --#ifdef CONFIG_64BIT -- return (KSEGX((unsigned long)ptr) == CKSEG0); --#else -- return (KSEGX(ptr) == KSEG0); -+ return vmalloc(size); - #endif - } - - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) - { -- if (is_phys_addr(module_region)) { -- if (mod->module_init == module_region) -- free_phys(module_region, mod->init_size); -- else if (mod->module_core == module_region) -- free_phys(module_region, mod->core_size); -- else -- BUG(); -- } else { -- vfree(module_region); -- } --} -- --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); -+ vfree(module_region); - } - - int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs, - char *secstrings, struct module *mod) - { -- unsigned int symindex = 0; -- unsigned int core_size, init_size; -- int i; -- -- for (i = 1; i < hdr->e_shnum; i++) -- if (sechdrs[i].sh_type == SHT_SYMTAB) -- symindex = i; -- -- 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; -- -- 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; - } - -@@ -278,36 +89,28 @@ static int apply_r_mips_32_rela(struct m - return 0; - } - --static Elf_Addr add_plt_entry_to(unsigned *plt_offset, -- void *start, Elf_Addr v) -+static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) - { -- unsigned *tramp = start + *plt_offset; -- *plt_offset += 4 * sizeof(int); -- -- /* adjust carry for addiu */ -- if (v & 0x00008000) -- v += 0x10000; -- -- tramp[0] = 0x3c190000 | (v >> 16); /* lui t9, hi16 */ -- tramp[1] = 0x27390000 | (v & 0xffff); /* addiu t9, t9, lo16 */ -- tramp[2] = 0x03200008; /* jr t9 */ -- tramp[3] = 0x00000000; /* nop */ -+ if (v % 4) { -+ pr_err("module %s: dangerous R_MIPS_26 REL relocation\n", -+ me->name); -+ return -ENOEXEC; -+ } - -- return (Elf_Addr) tramp; --} -+ if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { -+ printk(KERN_ERR -+ "module %s: relocation overflow\n", -+ me->name); -+ return -ENOEXEC; -+ } - --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; - } - --static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v) -+static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) - { - if (v % 4) { - pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n", -@@ -316,31 +119,17 @@ static int set_r_mips_26(struct module * - } - - if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) { -- v = add_plt_entry(me, location, v + (ofs << 2)); -- if (!v) { -- printk(KERN_ERR -+ printk(KERN_ERR - "module %s: relocation overflow\n", - me->name); -- return -ENOEXEC; -- } -- ofs = 0; -+ return -ENOEXEC; - } - -- *location = (*location & ~0x03ffffff) | ((ofs + (v >> 2)) & 0x03ffffff); -+ *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff); - - return 0; - } - --static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v) --{ -- return set_r_mips_26(me, location, *location & 0x03ffffff, v); --} -- --static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v) --{ -- return set_r_mips_26(me, location, 0, v); --} -- - static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v) - { - struct mips_hi16 *n; -@@ -608,32 +397,11 @@ int module_finalize(const Elf_Ehdr *hdr, - 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.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; - } - - void module_arch_cleanup(struct module *mod) - { -- 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); ---- a/arch/mips/Makefile -+++ b/arch/mips/Makefile -@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin - cflags-y += -G 0 -mno-abicalls -fno-pic -pipe - cflags-y += -msoft-float - LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --KBUILD_AFLAGS_MODULE += -mno-long-calls --KBUILD_CFLAGS_MODULE += -mno-long-calls -+KBUILD_AFLAGS_MODULE += -mlong-calls -+KBUILD_CFLAGS_MODULE += -mlong-calls - - cflags-y += -ffreestanding - |