module.c File Reference

#include <linux/moduleloader.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
#include <linux/fs.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/bug.h>
#include <linux/mm.h>
#include <linux/slab.h>
#include <asm/pgtable.h>
#include <asm/unwind.h>

Go to the source code of this file.

Data Structures
struct	got_entry
struct	stub_entry

Macros
#define	DEBUGP(fmt...)
#define	RELOC_REACHABLE(val, bits)
#define	CHECK_RELOC(val, bits)
#define	MAX_GOTS   4095
#define	rnd(x)   (((x)+0x1000)&~0x1fff)
#define	fsel(v, a)   ((v)+(a))
#define	lsel(v, a)   (((v)+(a))>>11)
#define	rsel(v, a)   (((v)+(a))&0x7ff)
#define	lrsel(v, a)   (((v)+rnd(a))>>11)
#define	rrsel(v, a)   ((((v)+rnd(a))&0x7ff)+((a)-rnd(a)))
#define	mask(x, sz)   ((x) & ~((1<<(sz))-1))
#define	CONST

Enumerations
enum	elf_stub_type { ELF_STUB_GOT, ELF_STUB_MILLI, ELF_STUB_DIRECT }

Functions
void *	module_alloc (unsigned long size)
void	module_free (struct module *mod, void *module_region)
unsigned int	arch_mod_section_prepend (struct module *mod, unsigned int section)
int	module_frob_arch_sections (CONST Elf_Ehdr *hdr, CONST Elf_Shdr *sechdrs, CONST char *secstrings, struct module *me)
int	apply_relocate_add (Elf_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relsec, struct module *me)
int	module_finalize (const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me)
void	module_arch_cleanup (struct module *mod)

Macro Definition Documentation

#define CHECK_RELOC	(		val,
			bits
	)

Value:

if (!RELOC_REACHABLE(val, bits)) { \
        printk(KERN_ERR "module %s relocation of symbol %s is out of range (0x%lx in %d bits)\n", \
        me->name, strtab + sym->st_name, (unsigned long)val, bits); \
        return -ENOEXEC;            \
    }

Definition at line 81 of file module.c.

#define CONST

Definition at line 323 of file module.c.

#define DEBUGP

(

fmt...

)

Definition at line 73 of file module.c.

#define fsel	(		v,
			a
	)		((v)+(a))

Definition at line 139 of file module.c.

#define lrsel	(		v,
			a
	)		(((v)+rnd(a))>>11)

Definition at line 145 of file module.c.

#define lsel	(		v,
			a
	)		(((v)+(a))>>11)

Definition at line 141 of file module.c.

#define mask	(		x,
			sz
	)		((x) & ~((1<<(sz))-1))

Definition at line 149 of file module.c.

#define MAX_GOTS   4095

Definition at line 97 of file module.c.

#define RELOC_REACHABLE	(		val,
			bits
	)

Value:

(( ( !((val) & (1<<((bits)-1))) && ((val)>>(bits)) != 0 )  ||   \
         ( ((val) & (1<<((bits)-1))) && ((val)>>(bits)) != (((__typeof__(val))(~0))>>((bits)+2)))) ? \
    0 : 1)

Definition at line 76 of file module.c.

#define rnd

(

x

)

(((x)+0x1000)&~0x1fff)

Definition at line 137 of file module.c.

#define rrsel	(		v,
			a
	)		((((v)+rnd(a))&0x7ff)+((a)-rnd(a)))

Definition at line 147 of file module.c.

#define rsel	(		v,
			a
	)		(((v)+(a))&0x7ff)

Definition at line 143 of file module.c.

Enumeration Type Documentation

enum elf_stub_type

Enumerator:

ELF_STUB_GOT
ELF_STUB_MILLI
ELF_STUB_DIRECT

Definition at line 441 of file module.c.

Function Documentation

int apply_relocate_add	(	Elf_Shdr *	sechdrs,
		const char *	strtab,
		unsigned int	symindex,
		unsigned int	relsec,
		struct module *	me
	)

Definition at line 544 of file module.c.

unsigned int arch_mod_section_prepend	(	struct module *	mod,
		unsigned int	section
	)

Definition at line 314 of file module.c.

void* module_alloc

(

unsigned long

size

)

Definition at line 215 of file module.c.

void module_arch_cleanup

(

struct module *

mod

)

Definition at line 943 of file module.c.

int module_finalize	(	const Elf_Ehdr *	hdr,
		const Elf_Shdr *	sechdrs,
		struct module *	me
	)

Definition at line 862 of file module.c.

void module_free	(	struct module *	mod,
		void *	module_region
	)

Definition at line 305 of file module.c.

int module_frob_arch_sections	(	CONST Elf_Ehdr *	hdr,
		CONST Elf_Shdr *	sechdrs,
		CONST char *	secstrings,
		struct module *	me
	)

Definition at line 324 of file module.c.