[mirror_ubuntu-artful-kernel.git] / scripts / mod / modpost.h

#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <elf.h>

#include "elfconfig.h"

#if KERNEL_ELFCLASS == ELFCLASS32

#define Elf_Ehdr    Elf32_Ehdr
#define Elf_Shdr    Elf32_Shdr
#define Elf_Sym     Elf32_Sym
#define Elf_Addr    Elf32_Addr
#define Elf_Section Elf32_Section
#define ELF_ST_BIND ELF32_ST_BIND
#define ELF_ST_TYPE ELF32_ST_TYPE

#define Elf_Rel     Elf32_Rel
#define Elf_Rela    Elf32_Rela
#define ELF_R_SYM   ELF32_R_SYM
#define ELF_R_TYPE  ELF32_R_TYPE
#else

#define Elf_Ehdr    Elf64_Ehdr
#define Elf_Shdr    Elf64_Shdr
#define Elf_Sym     Elf64_Sym
#define Elf_Addr    Elf64_Addr
#define Elf_Section Elf64_Section
#define ELF_ST_BIND ELF64_ST_BIND
#define ELF_ST_TYPE ELF64_ST_TYPE

#define Elf_Rel     Elf64_Rel
#define Elf_Rela    Elf64_Rela
#define ELF_R_SYM   ELF64_R_SYM
#define ELF_R_TYPE  ELF64_R_TYPE
#endif

#if KERNEL_ELFDATA != HOST_ELFDATA

static inline void __endian(const void *src, void *dest, unsigned int size)
{
	unsigned int i;
	for (i = 0; i < size; i++)
		((unsigned char*)dest)[i] = ((unsigned char*)src)[size - i-1];
}


#define TO_NATIVE(x)						\
({								\
	typeof(x) __x;						\
	__endian(&(x), &(__x), sizeof(__x));			\
	__x;							\
})

#else /* endianness matches */

#define TO_NATIVE(x) (x)

#endif

#define NOFAIL(ptr)   do_nofail((ptr), #ptr)
void *do_nofail(void *ptr, const char *expr);

struct buffer {
	char *p;
	int pos;
	int size;
};

void __attribute__((format(printf, 2, 3)))
buf_printf(struct buffer *buf, const char *fmt, ...);

void
buf_write(struct buffer *buf, const char *s, int len);

struct module {
	struct module *next;
	const char *name;
	struct symbol *unres;
	int seen;
	int skip;
	int has_init;
	int has_cleanup;
	struct buffer dev_table_buf;
	char	     srcversion[25];
};

struct elf_info {
	unsigned long size;
	Elf_Ehdr     *hdr;
	Elf_Shdr     *sechdrs;
	Elf_Sym      *symtab_start;
	Elf_Sym      *symtab_stop;
	const char   *strtab;
	char	     *modinfo;
	unsigned int modinfo_len;
};

/* file2alias.c */
void handle_moddevtable(struct module *mod, struct elf_info *info,
			Elf_Sym *sym, const char *symname);
void add_moddevtable(struct buffer *buf, struct module *mod);

/* sumversion.c */
void maybe_frob_rcs_version(const char *modfilename,
			    char *version,
			    void *modinfo,
			    unsigned long modinfo_offset);
void get_src_version(const char *modname, char sum[], unsigned sumlen);

/* from modpost.c */
void *grab_file(const char *filename, unsigned long *size);
char* get_next_line(unsigned long *pos, void *file, unsigned long size);
void release_file(void *file, unsigned long size);

void fatal(const char *fmt, ...);
void warn(const char *fmt, ...);
Commit	Line	Data
1da177e4 LT	1	#include <stdio.h>
	2	#include <stdlib.h>
	3	#include <stdarg.h>
	4	#include <string.h>
	5	#include <sys/types.h>
	6	#include <sys/stat.h>
	7	#include <sys/mman.h>
	8	#include <fcntl.h>
	9	#include <unistd.h>
	10	#include <elf.h>
	11
	12	#include "elfconfig.h"
	13
	14	#if KERNEL_ELFCLASS == ELFCLASS32
	15
62070fa4 SR	16	#define Elf_Ehdr Elf32_Ehdr
62070fa4 SR	17	#define Elf_Shdr Elf32_Shdr
1da177e4	18	#define Elf_Sym Elf32_Sym
b39927cf SR	19	#define Elf_Addr Elf32_Addr
b39927cf SR	20	#define Elf_Section Elf32_Section
1da177e4 LT	21	#define ELF_ST_BIND ELF32_ST_BIND
	22	#define ELF_ST_TYPE ELF32_ST_TYPE
	23
2c1a51f3	24	#define Elf_Rel Elf32_Rel
b39927cf SR	25	#define Elf_Rela Elf32_Rela
	26	#define ELF_R_SYM ELF32_R_SYM
	27	#define ELF_R_TYPE ELF32_R_TYPE
1da177e4 LT	28	#else
1da177e4 LT	29
62070fa4 SR	30	#define Elf_Ehdr Elf64_Ehdr
62070fa4 SR	31	#define Elf_Shdr Elf64_Shdr
1da177e4	32	#define Elf_Sym Elf64_Sym
b39927cf SR	33	#define Elf_Addr Elf64_Addr
b39927cf SR	34	#define Elf_Section Elf64_Section
1da177e4 LT	35	#define ELF_ST_BIND ELF64_ST_BIND
	36	#define ELF_ST_TYPE ELF64_ST_TYPE
	37
2c1a51f3	38	#define Elf_Rel Elf64_Rel
b39927cf SR	39	#define Elf_Rela Elf64_Rela
	40	#define ELF_R_SYM ELF64_R_SYM
	41	#define ELF_R_TYPE ELF64_R_TYPE
1da177e4 LT	42	#endif
	43
	44	#if KERNEL_ELFDATA != HOST_ELFDATA
	45
	46	static inline void __endian(const void src, void dest, unsigned int size)
	47	{
	48	unsigned int i;
	49	for (i = 0; i < size; i++)
	50	((unsigned char)dest)[i] = ((unsigned char)src)[size - i-1];
	51	}
	52
	53
	54
	55	#define TO_NATIVE(x) \
	56	({ \
	57	typeof(x) __x; \
	58	__endian(&(x), &(__x), sizeof(__x)); \
	59	__x; \
	60	})
	61
	62	#else /* endianness matches */
	63
	64	#define TO_NATIVE(x) (x)
	65
	66	#endif
	67
	68	#define NOFAIL(ptr) do_nofail((ptr), #ptr)
	69	void do_nofail(void ptr, const char *expr);
	70
	71	struct buffer {
	72	char *p;
	73	int pos;
	74	int size;
	75	};
	76
	77	void __attribute__((format(printf, 2, 3)))
	78	buf_printf(struct buffer buf, const char fmt, ...);
	79
	80	void
	81	buf_write(struct buffer buf, const char s, int len);
	82
	83	struct module {
	84	struct module *next;
	85	const char *name;
	86	struct symbol *unres;
	87	int seen;
	88	int skip;
	89	int has_init;
	90	int has_cleanup;
	91	struct buffer dev_table_buf;
	92	char srcversion[25];
	93	};
	94
	95	struct elf_info {
	96	unsigned long size;
	97	Elf_Ehdr *hdr;
	98	Elf_Shdr *sechdrs;
	99	Elf_Sym *symtab_start;
	100	Elf_Sym *symtab_stop;
	101	const char *strtab;
	102	char *modinfo;
	103	unsigned int modinfo_len;
	104	};
	105
cb80514d	106	/* file2alias.c */
1da177e4 LT	107	void handle_moddevtable(struct module mod, struct elf_info info,
1da177e4 LT	108	Elf_Sym sym, const char symname);
1da177e4 LT	109	void add_moddevtable(struct buffer buf, struct module mod);
1da177e4 LT	110
cb80514d	111	/* sumversion.c */
1da177e4 LT	112	void maybe_frob_rcs_version(const char *modfilename,
	113	char *version,
	114	void *modinfo,
	115	unsigned long modinfo_offset);
	116	void get_src_version(const char *modname, char sum[], unsigned sumlen);
	117
cb80514d	118	/* from modpost.c */
1da177e4 LT	119	void grab_file(const char filename, unsigned long *size);
	120	char* get_next_line(unsigned long pos, void file, unsigned long size);
	121	void release_file(void *file, unsigned long size);
cb80514d SR	122
	123	void fatal(const char *fmt, ...);
	124	void warn(const char *fmt, ...);