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-rw-r--r--target/linux/sibyte/patches-3.3/106-no_module_reloc.patch370
1 files changed, 0 insertions, 370 deletions
diff --git a/target/linux/sibyte/patches-3.3/106-no_module_reloc.patch b/target/linux/sibyte/patches-3.3/106-no_module_reloc.patch
deleted file mode 100644
index 8082c3d..0000000
--- a/target/linux/sibyte/patches-3.3/106-no_module_reloc.patch
+++ /dev/null
@@ -1,370 +0,0 @@
---- 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
-
---- 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
-@@ -44,117 +44,6 @@ 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
-@@ -162,99 +51,21 @@ 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;
- }
-
-@@ -277,36 +88,28 @@ 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",
-@@ -315,31 +118,17 @@ 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;
-@@ -607,32 +396,11 @@ 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);
generated by cgit v1.1 at 2024-11-21 23:13:28 +0000