[linux-2.6-block.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_ST_BIND ELF32_ST_BIND
#define ELF_ST_TYPE ELF32_ST_TYPE

#else

#define Elf_Ehdr    Elf64_Ehdr 
#define Elf_Shdr    Elf64_Shdr 
#define Elf_Sym     Elf64_Sym
#define ELF_ST_BIND ELF64_ST_BIND
#define ELF_ST_TYPE ELF64_ST_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;
};

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);

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);

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);
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
	16	#define Elf_Ehdr Elf32_Ehdr
	17	#define Elf_Shdr Elf32_Shdr
	18	#define Elf_Sym Elf32_Sym
	19	#define ELF_ST_BIND ELF32_ST_BIND
	20	#define ELF_ST_TYPE ELF32_ST_TYPE
	21
	22	#else
	23
	24	#define Elf_Ehdr Elf64_Ehdr
	25	#define Elf_Shdr Elf64_Shdr
	26	#define Elf_Sym Elf64_Sym
	27	#define ELF_ST_BIND ELF64_ST_BIND
	28	#define ELF_ST_TYPE ELF64_ST_TYPE
	29
	30	#endif
	31
	32	#if KERNEL_ELFDATA != HOST_ELFDATA
	33
	34	static inline void __endian(const void src, void dest, unsigned int size)
	35	{
	36	unsigned int i;
	37	for (i = 0; i < size; i++)
	38	((unsigned char)dest)[i] = ((unsigned char)src)[size - i-1];
	39	}
	40
	41
	42
	43	#define TO_NATIVE(x) \
	44	({ \
	45	typeof(x) __x; \
	46	__endian(&(x), &(__x), sizeof(__x)); \
	47	__x; \
	48	})
	49
	50	#else /* endianness matches */
	51
	52	#define TO_NATIVE(x) (x)
	53
	54	#endif
	55
	56	#define NOFAIL(ptr) do_nofail((ptr), #ptr)
	57	void do_nofail(void ptr, const char *expr);
	58
	59	struct buffer {
	60	char *p;
	61	int pos;
	62	int size;
	63	};
	64
65	void __attribute__((format(printf, 2, 3)))
66	buf_printf(struct buffer buf, const char fmt, ...);
67
68	void
69	buf_write(struct buffer buf, const char s, int len);
70
71	struct module {
72	struct module *next;
73	const char *name;
74	struct symbol *unres;
75	int seen;
76	int skip;
77	int has_init;
78	int has_cleanup;
79	struct buffer dev_table_buf;
80	char srcversion[25];
81	};
82
83	struct elf_info {
84	unsigned long size;
85	Elf_Ehdr *hdr;
86	Elf_Shdr *sechdrs;
87	Elf_Sym *symtab_start;
88	Elf_Sym *symtab_stop;
89	const char *strtab;
90	char *modinfo;
91	unsigned int modinfo_len;
92	};
93
94	void handle_moddevtable(struct module mod, struct elf_info info,
95	Elf_Sym sym, const char symname);
96
97	void add_moddevtable(struct buffer buf, struct module mod);
98
99	void maybe_frob_rcs_version(const char *modfilename,
100	char *version,
101	void *modinfo,
102	unsigned long modinfo_offset);
103	void get_src_version(const char *modname, char sum[], unsigned sumlen);
104
105	void grab_file(const char filename, unsigned long *size);
106	char* get_next_line(unsigned long pos, void file, unsigned long size);
107	void release_file(void *file, unsigned long size);