Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / include / linux / moduleloader.h

diff --git a/kernel/include/linux/moduleloader.h b/kernel/include/linux/moduleloader.h
new file mode 100644 (file)
index 0000000..4d0cb9b
--- /dev/null
+++ b/kernel/include/linux/moduleloader.h
@@ -0,0 +1,95 @@
+#ifndef _LINUX_MODULELOADER_H
+#define _LINUX_MODULELOADER_H
+/* The stuff needed for archs to support modules. */
+
+#include <linux/module.h>
+#include <linux/elf.h>
+
+/* These may be implemented by architectures that need to hook into the
+ * module loader code.  Architectures that don't need to do anything special
+ * can just rely on the 'weak' default hooks defined in kernel/module.c.
+ * Note, however, that at least one of apply_relocate or apply_relocate_add
+ * must be implemented by each architecture.
+ */
+
+/* Adjust arch-specific sections.  Return 0 on success.  */
+int module_frob_arch_sections(Elf_Ehdr *hdr,
+                             Elf_Shdr *sechdrs,
+                             char *secstrings,
+                             struct module *mod);
+
+/* Additional bytes needed by arch in front of individual sections */
+unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
+
+/* Allocator used for allocating struct module, core sections and init
+   sections.  Returns NULL on failure. */
+void *module_alloc(unsigned long size);
+
+/* Free memory returned from module_alloc. */
+void module_memfree(void *module_region);
+
+/*
+ * Apply the given relocation to the (simplified) ELF.  Return -error
+ * or 0.
+ */
+#ifdef CONFIG_MODULES_USE_ELF_REL
+int apply_relocate(Elf_Shdr *sechdrs,
+                  const char *strtab,
+                  unsigned int symindex,
+                  unsigned int relsec,
+                  struct module *mod);
+#else
+static inline int apply_relocate(Elf_Shdr *sechdrs,
+                                const char *strtab,
+                                unsigned int symindex,
+                                unsigned int relsec,
+                                struct module *me)
+{
+       printk(KERN_ERR "module %s: REL relocation unsupported\n",
+              module_name(me));
+       return -ENOEXEC;
+}
+#endif
+
+/*
+ * Apply the given add relocation to the (simplified) ELF.  Return
+ * -error or 0
+ */
+#ifdef CONFIG_MODULES_USE_ELF_RELA
+int apply_relocate_add(Elf_Shdr *sechdrs,
+                      const char *strtab,
+                      unsigned int symindex,
+                      unsigned int relsec,
+                      struct module *mod);
+#else
+static inline int apply_relocate_add(Elf_Shdr *sechdrs,
+                                    const char *strtab,
+                                    unsigned int symindex,
+                                    unsigned int relsec,
+                                    struct module *me)
+{
+       printk(KERN_ERR "module %s: REL relocation unsupported\n",
+              module_name(me));
+       return -ENOEXEC;
+}
+#endif
+
+/* Any final processing of module before access.  Return -error or 0. */
+int module_finalize(const Elf_Ehdr *hdr,
+                   const Elf_Shdr *sechdrs,
+                   struct module *mod);
+
+/* Any cleanup needed when module leaves. */
+void module_arch_cleanup(struct module *mod);
+
+/* Any cleanup before freeing mod->module_init */
+void module_arch_freeing_init(struct module *mod);
+
+#ifdef CONFIG_KASAN
+#include <linux/kasan.h>
+#define MODULE_ALIGN (PAGE_SIZE << KASAN_SHADOW_SCALE_SHIFT)
+#else
+#define MODULE_ALIGN PAGE_SIZE
+#endif
+
+#endif