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Modules updates for v5.2

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Summary of modules changes for the 5.2 merge window:
 
 - Use a separate table to store symbol types instead of
   hijacking fields in struct Elf_Sym
 
 - Trivial code cleanups
 
 Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux

Pull modules updates from Jessica Yu:

 - Use a separate table to store symbol types instead of hijacking
   fields in struct Elf_Sym

 - Trivial code cleanups

* tag 'modules-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
  module: add stubs for within_module functions
  kallsyms: store type information in its own array
  vmlinux.lds.h: drop unused __vermagic
This commit is contained in:
Linus Torvalds 2019-05-14 10:55:54 -07:00
commit 280664f558
4 changed files with 27 additions and 9 deletions
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12
include/linux/module.h
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@ -332,6 +332,7 @@ struct mod_kallsyms {
Elf_Sym *symtab;
unsigned int num_symtab;
char *strtab;
char *typetab;
};
#ifdef CONFIG_LIVEPATCH
@ -717,6 +718,17 @@ static inline bool within_module_core(unsigned long addr,
return false;
}
static inline bool within_module_init(unsigned long addr,
const struct module *mod)
{
return false;
}
static inline bool within_module(unsigned long addr, const struct module *mod)
{
return false;
}
/* Get/put a kernel symbol (calls should be symmetric) */
#define symbol_get(x) ({ extern typeof(x) x __attribute__((weak)); &(x); })
#define symbol_put(x) do { } while (0)