be1f221c04
Nothing needs the module pointer any more, and the next patch will call it from RCU, where the module itself might no longer exist. Removing the arg is the safest approach. This just codifies the use of the module_alloc/module_free pattern which ftrace and bpf use. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Ley Foon Tan <lftan@altera.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Metcalf <cmetcalf@ezchip.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: x86@kernel.org Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: linux-cris-kernel@axis.com Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: nios2-dev@lists.rocketboards.org Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org Cc: netdev@vger.kernel.org
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
#ifndef _LINUX_MODULELOADER_H
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#define _LINUX_MODULELOADER_H
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/* The stuff needed for archs to support modules. */
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#include <linux/module.h>
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#include <linux/elf.h>
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/* These may be implemented by architectures that need to hook into the
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* module loader code. Architectures that don't need to do anything special
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* can just rely on the 'weak' default hooks defined in kernel/module.c.
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* Note, however, that at least one of apply_relocate or apply_relocate_add
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* must be implemented by each architecture.
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*/
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/* Adjust arch-specific sections. Return 0 on success. */
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int module_frob_arch_sections(Elf_Ehdr *hdr,
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Elf_Shdr *sechdrs,
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char *secstrings,
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struct module *mod);
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/* Additional bytes needed by arch in front of individual sections */
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unsigned int arch_mod_section_prepend(struct module *mod, unsigned int section);
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/* Allocator used for allocating struct module, core sections and init
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sections. Returns NULL on failure. */
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void *module_alloc(unsigned long size);
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/* Free memory returned from module_alloc. */
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void module_memfree(void *module_region);
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/*
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* Apply the given relocation to the (simplified) ELF. Return -error
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* or 0.
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*/
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#ifdef CONFIG_MODULES_USE_ELF_REL
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int apply_relocate(Elf_Shdr *sechdrs,
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const char *strtab,
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unsigned int symindex,
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unsigned int relsec,
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struct module *mod);
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#else
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static inline int apply_relocate(Elf_Shdr *sechdrs,
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const char *strtab,
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unsigned int symindex,
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unsigned int relsec,
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struct module *me)
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{
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printk(KERN_ERR "module %s: REL relocation unsupported\n",
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module_name(me));
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return -ENOEXEC;
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}
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#endif
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/*
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* Apply the given add relocation to the (simplified) ELF. Return
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* -error or 0
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*/
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#ifdef CONFIG_MODULES_USE_ELF_RELA
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int apply_relocate_add(Elf_Shdr *sechdrs,
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const char *strtab,
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unsigned int symindex,
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unsigned int relsec,
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struct module *mod);
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#else
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static inline int apply_relocate_add(Elf_Shdr *sechdrs,
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const char *strtab,
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unsigned int symindex,
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unsigned int relsec,
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struct module *me)
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{
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printk(KERN_ERR "module %s: REL relocation unsupported\n",
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module_name(me));
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return -ENOEXEC;
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}
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#endif
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/* Any final processing of module before access. Return -error or 0. */
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int module_finalize(const Elf_Ehdr *hdr,
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const Elf_Shdr *sechdrs,
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struct module *mod);
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/* Any cleanup needed when module leaves. */
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void module_arch_cleanup(struct module *mod);
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/* Any cleanup before freeing mod->module_init */
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void module_arch_freeing_init(struct module *mod);
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#endif
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