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# 
# Copyright (C) 2006 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# $Id$

include $(TOPDIR)/rules.mk

PKG_NAME:=wireless-tools
PKG_VERSION:=28
PKG_RELEASE:=1

PKG_SOURCE:=wireless_tools.$(PKG_VERSION).tar.gz
PKG_SOURCE_URL:=http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux
PKG_MD5SUM:=599c94497f9c9073c7b052d3dcb7cd16
PKG_CAT:=zcat
TAR_OPTIONS += || true

PKG_BUILD_DIR:=$(BUILD_DIR)/wireless_tools.28
PKG_INSTALL_DIR:=$(PKG_BUILD_DIR)/ipkg-install

include $(INCLUDE_DIR)/package.mk

define Package/wireless-tools
  SECTION:=net
  CATEGORY:=Base system
  TITLE:=Tools for manipulating Linux Wireless Extensions
  DESCRIPTION:=\
	This package contains a collection of tools for configuring wireless \\\
	adapters implementing the "Linux Wireless Extensions".
  URL:=http://hplabs.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html
endef

define Build/Compile
	rm -rf $(PKG_INSTALL_DIR)
	mkdir -p $(PKG_INSTALL_DIR)
	$(MAKE) -C $(PKG_BUILD_DIR) \
		$(TARGET_CONFIGURE_OPTS) \
		CFLAGS="$(TARGET_CFLAGS) -I." \
		libiw.so.28 iwmulticall
	$(MAKE) -C $(PKG_BUILD_DIR) \
		PREFIX="$(PKG_INSTALL_DIR)" \
		INSTALL_DIR="$(PKG_INSTALL_DIR)/usr/sbin" \
		INSTALL_LIB="$(PKG_INSTALL_DIR)/usr/lib" \
		install-iwmulticall
endef

define Build/InstallDev
	mkdir -p $(STAGING_DIR)/usr/include
	$(CP) $(PKG_BUILD_DIR)/{iwlib,wireless}.h $(STAGING_DIR)/usr/include/
	mkdir -p $(STAGING_DIR)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/libiw.so* $(STAGING_DIR)/usr/lib/
	ln -sf libiw.so.28 $(STAGING_DIR)/usr/lib/libiw.so
endef
	
define Build/UninstallDev
	rm -f	$(STAGING_DIR)/usr/include/{iwlib,wireless}.h \
		$(STAGING_DIR)/usr/lib/libiw.so*
endef

define Package/wireless-tools/install
	$(INSTALL_DIR)  $(1)/usr/lib
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/libiw.so.28 $(1)/usr/lib/
	$(INSTALL_DIR) $(1)/usr/sbin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/iw{config,getid,list,priv,spy} $(1)/usr/sbin/
endef

$(eval $(call BuildPackage,wireless-tools))
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 03:10:26 +0000
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--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -90,8 +90,8 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
 cflags-y			+= -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
 cflags-y			+= -msoft-float
 LDFLAGS_vmlinux			+= -G 0 -static -n -nostdlib
-KBUILD_AFLAGS_MODULE		+= -mlong-calls
-KBUILD_CFLAGS_MODULE		+= -mlong-calls
+KBUILD_AFLAGS_MODULE		+= -mno-long-calls
+KBUILD_CFLAGS_MODULE		+= -mno-long-calls
 
 cflags-y += -ffreestanding
 
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -11,6 +11,11 @@ struct mod_arch_specific {
 	const struct exception_table_entry *dbe_start;
 	const struct exception_table_entry *dbe_end;
 	struct mips_hi16 *r_mips_hi16_list;
+
+	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
@@ -42,14 +42,219 @@ struct mips_hi16 {
 static LIST_HEAD(dbe_list);
 static DEFINE_SPINLOCK(dbe_lock);
 
-#ifdef MODULE_START
+/*
+ * 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
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
 				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);
 #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);
+}
+
+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;
+}
 
 static int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
 {
@@ -70,28 +275,36 @@ 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, Elf_Addr v)
 {
-	if (v % 4) {
-		pr_err("module %s: dangerous R_MIPS_26 REL relocation\n",
-		       me->name);
-		return -ENOEXEC;
-	}
+	unsigned *tramp = start + *plt_offset;
+	*plt_offset += 4 * sizeof(int);
 
-	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
-		printk(KERN_ERR
-		       "module %s: relocation overflow\n",
-		       me->name);
-		return -ENOEXEC;
-	}
+	/* 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 */
+	tramp[3] = 0x00000000;                  /* nop */
 
-	return 0;
+	return (Elf_Addr) tramp;
 }
 
-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr 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);
+
+}
+
+static int set_r_mips_26(struct module *me, u32 *location, u32 ofs, Elf_Addr v)
 {
 	if (v % 4) {
 		pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n",
@@ -100,17 +313,31 @@ static int apply_r_mips_26_rela(struct m
 	}
 
 	if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
-		printk(KERN_ERR
+	    v = add_plt_entry(me, location, v + (ofs << 2));
+		if (!v) {
+			printk(KERN_ERR
 		       "module %s: relocation overflow\n",
 		       me->name);
-		return -ENOEXEC;
+			return -ENOEXEC;
+		}
+		ofs = 0;
 	}
 
-	*location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
+	*location = (*location & ~0x03ffffff) | ((ofs + (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;
@@ -405,11 +632,32 @@ 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 v1.2.3 (git 2.25.1) at 2024-08-20 03:10:26 +0000