#include <sys/cdefs.h>
#include "opt_ddb.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/namei.h>
#include <sys/fcntl.h>
#include <sys/vnode.h>
#include <sys/linker.h>
#include <machine/elf.h>
#include <net/vnet.h>
#include <security/mac/mac_framework.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_object.h>
#include <vm/vm_kern.h>
#include <vm/vm_extern.h>
#include <vm/pmap.h>
#include <vm/vm_map.h>
#include <sys/link_elf.h>
#include "linker_if.h"
#include <kern/kern_ctf.c>

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Data Structures
struct	Elf_progent

struct	Elf_relent

struct	Elf_relaent

struct	elf_file

Typedefs
typedef struct elf_file *	elf_file_t

Functions
	__FBSDID ("$BSDSUniX$")

static int	link_elf_link_preload (linker_class_t cls, const char , linker_file_t )

static int	link_elf_link_preload_finish (linker_file_t)

static int	link_elf_load_file (linker_class_t, const char , linker_file_t )

static int	link_elf_lookup_symbol (linker_file_t, const char , c_linker_sym_t )

static int	link_elf_symbol_values (linker_file_t, c_linker_sym_t, linker_symval_t *)

static int	link_elf_search_symbol (linker_file_t, caddr_t value, c_linker_sym_t sym, long diffp)

static void	link_elf_unload_file (linker_file_t)

static int	link_elf_lookup_set (linker_file_t, const char , void , void , int )

static int	link_elf_each_function_name (linker_file_t, int()(const char , void ), void )

static int	link_elf_each_function_nameval (linker_file_t, linker_function_nameval_callback_t, void *)

static void	link_elf_reloc_local (linker_file_t)

static long	link_elf_symtab_get (linker_file_t, const Elf_Sym **)

static long	link_elf_strtab_get (linker_file_t, caddr_t *)

static Elf_Addr	elf_obj_lookup (linker_file_t lf, Elf_Size symidx, int deps)

static int	relocate_file (elf_file_t ef)

static void	link_elf_error (const char filename, const char s)

static void	link_elf_init (void *arg)

	SYSINIT (link_elf_obj, SI_SUB_KLD, SI_ORDER_SECOND, link_elf_init, 0)

static const char *	symbol_name (elf_file_t ef, Elf_Size r_info)

static Elf_Addr	findbase (elf_file_t ef, int sec)

static void	link_elf_fix_link_set (elf_file_t ef)

Variables
static kobj_method_t	link_elf_methods []

static struct linker_class	link_elf_class

Typedef Documentation

typedef struct elf_file * elf_file_t

Function Documentation

__FBSDID ( "$BSDSUniX$" )

static Elf_Addr elf_obj_lookup	(	linker_file_t	lf,
		Elf_Size	symidx,
		int	deps
	)

static

Definition at line 1230 of file link_elf_obj.c.

References elf_file::ddbstrtab, elf_file::ddbsymcnt, elf_file::ddbsymtab, linker_file_lookup_symbol(), printf(), and sym.

Referenced by link_elf_reloc_local(), and relocate_file().

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static Elf_Addr findbase	(	elf_file_t	ef,
		int	sec
	)

static

Definition at line 992 of file link_elf_obj.c.

References Elf_progent::addr, elf_file::nprogtab, elf_file::progtab, and Elf_progent::sec.

Referenced by link_elf_reloc_local(), and relocate_file().

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static int link_elf_each_function_name	(	linker_file_t	file,
		int()(const char , void *)	callback,
		void *	opaque
	)

static

Definition at line 1179 of file link_elf_obj.c.

References callback, elf_file::ddbstrtab, elf_file::ddbsymtab, and symp.

static int link_elf_each_function_nameval	(	linker_file_t	file,
		linker_function_nameval_callback_t	callback,
		void *	opaque
	)

static

Definition at line 1199 of file link_elf_obj.c.

References callback, elf_file::ddbsymtab, link_elf_symbol_values(), and symp.

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static void link_elf_error	(	const char *	filename,
		const char *	s
	)

static

Definition at line 178 of file link_elf_obj.c.

References printf().

Referenced by link_elf_load_file().

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static void link_elf_fix_link_set ( elf_file_t ef )

static

Definition at line 1273 of file link_elf_obj.c.

References Elf_progent::addr, elf_file::ddbstrtab, elf_file::ddbsymcnt, elf_file::ddbsymtab, Elf_progent::name, elf_file::nprogtab, elf_file::progtab, Elf_progent::size, start, and sym.

Referenced by link_elf_reloc_local().

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static void link_elf_init ( void * arg )

static

Definition at line 187 of file link_elf_obj.c.

References linker_add_class().

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static int link_elf_link_preload	(	linker_class_t	cls,
		const char *	filename,
		linker_file_t *	result
	)

static

Definition at line 196 of file link_elf_obj.c.

References __ELF_WORD_SIZE, Elf_progent::addr, elf_file::address, elf_file::ddbstrcnt, elf_file::ddbstrtab, elf_file::ddbsymcnt, elf_file::ddbsymtab, dpcpu_alloc(), dpcpu_copy(), elf_file::e_shdr, elf_file::lf, link_elf_reloc_local(), linker_file_unload(), linker_make_file(), malloc(), elf_file::modptr, Elf_progent::name, elf_file::nprogtab, Elf_relent::nrel, Elf_relaent::nrela, elf_file::nrelatab, elf_file::nreltab, panic(), preload_search_by_name(), preload_search_info(), elf_file::preloaded, printf(), elf_file::progtab, Elf_relent::rel, Elf_relaent::rela, elf_file::relatab, elf_file::reltab, Elf_progent::sec, Elf_relent::sec, Elf_relaent::sec, elf_file::shstrcnt, elf_file::shstrtab, Elf_progent::size, and type.

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static int link_elf_link_preload_finish ( linker_file_t lf )

static

Definition at line 422 of file link_elf_obj.c.

References relocate_file().

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static int link_elf_load_file	(	linker_class_t	cls,
		const char *	filename,
		linker_file_t *	result
	)

static

Definition at line 441 of file link_elf_obj.c.

References Elf_progent::addr, elf_file::address, elf_file::ddbstrcnt, elf_file::ddbstrtab, elf_file::ddbsymcnt, elf_file::ddbsymtab, dpcpu_alloc(), dpcpu_copy(), elf_file::e_shdr, free(), link_elf_error(), link_elf_reloc_local(), linker_file_unload(), linker_load_dependencies(), linker_make_file(), malloc(), Elf_progent::name, NDFREE(), elf_file::nprogtab, Elf_relent::nrel, Elf_relaent::nrela, elf_file::nrelatab, elf_file::nreltab, elf_file::object, panic(), elf_file::progtab, Elf_relent::rel, Elf_relaent::rela, elf_file::relatab, relocate_file(), elf_file::reltab, Elf_progent::sec, Elf_relent::sec, Elf_relaent::sec, elf_file::shstrcnt, elf_file::shstrtab, Elf_progent::size, vn_close(), vn_open(), and vn_rdwr().

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static int link_elf_lookup_set	(	linker_file_t	lf,
		const char *	name,
		void ***	startp,
		void ***	stopp,
		int *	countp
	)

static

Definition at line 1151 of file link_elf_obj.c.

References Elf_progent::addr, count, Elf_progent::name, elf_file::nprogtab, elf_file::progtab, Elf_progent::size, start, and stop.

static int link_elf_lookup_symbol	(	linker_file_t	lf,
		const char *	name,
		c_linker_sym_t *	sym
	)

static

Definition at line 1078 of file link_elf_obj.c.

References elf_file::ddbstrtab, elf_file::ddbsymtab, and symp.

static void link_elf_reloc_local ( linker_file_t lf )

static

Definition at line 1318 of file link_elf_obj.c.

References elf_file::ddbsymcnt, elf_file::ddbsymtab, elf_obj_lookup(), findbase(), link_elf_fix_link_set(), Elf_relent::nrel, Elf_relaent::nrela, elf_file::nrelatab, elf_file::nreltab, panic(), Elf_relent::rel, Elf_relaent::rela, elf_file::relatab, elf_file::reltab, Elf_relent::sec, Elf_relaent::sec, and sym.

Referenced by link_elf_link_preload(), and link_elf_load_file().

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static int link_elf_search_symbol	(	linker_file_t	lf,
		caddr_t	value,
		c_linker_sym_t *	sym,
		long *	diffp
	)

static

Definition at line 1112 of file link_elf_obj.c.

References elf_file::ddbsymtab, and value.

static long link_elf_strtab_get	(	linker_file_t	lf,
		caddr_t *	strtab
	)

static

Definition at line 1391 of file link_elf_obj.c.

References elf_file::ddbstrcnt, and elf_file::ddbstrtab.

static int link_elf_symbol_values	(	linker_file_t	lf,
		c_linker_sym_t	sym,
		linker_symval_t *	symval
	)

static

Definition at line 1096 of file link_elf_obj.c.

References elf_file::ddbstrtab, elf_file::ddbsymcnt, and elf_file::ddbsymtab.

Referenced by link_elf_each_function_nameval().

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static long link_elf_symtab_get	(	linker_file_t	lf,
		const Elf_Sym **	symtab
	)

static

Definition at line 1378 of file link_elf_obj.c.

References elf_file::ddbsymcnt, and elf_file::ddbsymtab.

static void link_elf_unload_file ( linker_file_t file )

static

Definition at line 902 of file link_elf_obj.c.

References Elf_progent::addr, elf_file::address, elf_file::ctfoff, elf_file::ctftab, elf_file::ddbstrtab, elf_file::ddbsymtab, dpcpu_free(), elf_file::e_shdr, free(), Elf_progent::name, elf_file::nprogtab, elf_file::nrelatab, elf_file::nreltab, elf_file::object, preload_delete_name(), elf_file::preloaded, elf_file::progtab, Elf_relent::rel, Elf_relaent::rela, elf_file::relatab, elf_file::reltab, elf_file::shstrtab, Elf_progent::size, and elf_file::typoff.

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static int relocate_file ( elf_file_t ef )

static

Definition at line 1007 of file link_elf_obj.c.

References elf_file::ddbsymcnt, elf_file::ddbsymtab, elf_obj_lookup(), findbase(), elf_file::lf, Elf_relent::nrel, Elf_relaent::nrela, elf_file::nrelatab, elf_file::nreltab, panic(), printf(), Elf_relent::rel, Elf_relaent::rela, elf_file::relatab, elf_file::reltab, Elf_relent::sec, Elf_relaent::sec, sym, and symbol_name().

Referenced by link_elf_link_preload_finish(), and link_elf_load_file().

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static const char* symbol_name	(	elf_file_t	ef,
		Elf_Size	r_info
	)

static

Definition at line 980 of file link_elf_obj.c.

References elf_file::ddbstrtab, and elf_file::ddbsymtab.

Referenced by relocate_file().

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SYSINIT	(	link_elf_obj	,
		SI_SUB_KLD	,
		SI_ORDER_SECOND	,
		link_elf_init	,
		0
	)

Variable Documentation

struct linker_class link_elf_class

static

Initial value:

= {
        "elf32_obj",
        link_elf_methods, sizeof(struct elf_file)
}

Definition at line 166 of file link_elf_obj.c.

kobj_method_t link_elf_methods[]

static

Initial value:

= {
        KOBJMETHOD(linker_lookup_symbol,        link_elf_lookup_symbol),
        KOBJMETHOD(linker_symbol_values,        link_elf_symbol_values),
        KOBJMETHOD(linker_search_symbol,        link_elf_search_symbol),
        KOBJMETHOD(linker_unload,               link_elf_unload_file),
        KOBJMETHOD(linker_load_file,            link_elf_load_file),
        KOBJMETHOD(linker_link_preload,         link_elf_link_preload),
        KOBJMETHOD(linker_link_preload_finish,  link_elf_link_preload_finish),
        KOBJMETHOD(linker_lookup_set,           link_elf_lookup_set),
        KOBJMETHOD(linker_each_function_name,   link_elf_each_function_name),
        KOBJMETHOD(linker_each_function_nameval, link_elf_each_function_nameval),
        KOBJMETHOD(linker_ctf_get,              link_elf_ctf_get),
        KOBJMETHOD(linker_symtab_get,           link_elf_symtab_get),
        KOBJMETHOD(linker_strtab_get,           link_elf_strtab_get),
        { 0, 0 }
}

Definition at line 149 of file link_elf_obj.c.

Data Structures

Typedefs

Functions

Variables

Typedef Documentation

Function Documentation

Variable Documentation