#include <sys/cdefs.h>
#include "opt_ddb.h"
#include "opt_kld.h"
#include "opt_hwpmc_hooks.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/boottrace.h>
#include <sys/eventhandler.h>
#include <sys/fcntl.h>
#include <sys/jail.h>
#include <sys/kernel.h>
#include <sys/libkern.h>
#include <sys/linker.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/mount.h>
#include <sys/mutex.h>
#include <sys/namei.h>
#include <sys/priv.h>
#include <sys/proc.h>
#include <sys/sx.h>
#include <sys/syscallsubr.h>
#include <sys/sysctl.h>
#include <sys/sysent.h>
#include <sys/sysproto.h>
#include <sys/vnode.h>
#include <net/vnet.h>
#include <security/mac/mac_framework.h>
#include "linker_if.h"

Include dependency graph for kern_linker.c:

Macros
#define	LINKER_GET_NEXT_FILE_ID(a)

#define	INT_ALIGN(base, ptr)

Typedefs
typedef struct modlist *	modlist_t

Functions
	__FBSDID ("$FreeBSD$")

static const char *	linker_basename (const char *path)

static linker_file_t	linker_find_file_by_name (const char *_filename)

static linker_file_t	linker_find_file_by_id (int _fileid)

	SET_DECLARE (modmetadata_set, struct mod_metadata)

	MALLOC_DEFINE (M_LINKER, "linker", "kernel linker")

typedef	TAILQ_HEAD (modlist)

static int	linker_file_add_dependency (linker_file_t file, linker_file_t dep)

static caddr_t	linker_file_lookup_symbol_internal (linker_file_t file, const char *name, int deps)

static int	linker_load_module (const char kldname, const char modname, struct linker_file parent, const struct mod_depend verinfo, struct linker_file **lfpp)

static modlist_t	modlist_lookup2 (const char name, const struct mod_depend verinfo)

static void	linker_init (void *arg)

	SYSINIT (linker, SI_SUB_KLD, SI_ORDER_FIRST, linker_init, NULL)

static void	linker_stop_class_add (void *arg)

	SYSINIT (linker_class, SI_SUB_KLD, SI_ORDER_ANY, linker_stop_class_add, NULL)

int	linker_add_class (linker_class_t lc)

static void	linker_file_sysinit (linker_file_t lf)

static void	linker_file_sysuninit (linker_file_t lf)

static void	linker_file_register_sysctls (linker_file_t lf, bool enable)

static void	linker_file_enable_sysctls (linker_file_t lf)

static void	linker_file_unregister_sysctls (linker_file_t lf)

static int	linker_file_register_modules (linker_file_t lf)

static void	linker_init_kernel_modules (void)

	SYSINIT (linker_kernel, SI_SUB_KLD, SI_ORDER_ANY, linker_init_kernel_modules, NULL)

static int	linker_load_file (const char filename, linker_file_t result)

int	linker_reference_module (const char modname, struct mod_depend verinfo, linker_file_t *result)

int	linker_release_module (const char modname, struct mod_depend verinfo, linker_file_t lf)

int	linker_file_foreach (linker_predicate_t predicate, void context)

linker_file_t	linker_make_file (const char *pathname, linker_class_t lc)

int	linker_file_unload (linker_file_t file, int flags)

int	linker_ctf_get (linker_file_t file, linker_ctf_t *lc)

int	linker_file_lookup_set (linker_file_t file, const char name, void firstp, void lastp, int countp)

int	linker_file_function_listall (linker_file_t lf, linker_function_nameval_callback_t callback_func, void *arg)

caddr_t	linker_file_lookup_symbol (linker_file_t file, const char *name, int deps)

static int	linker_debug_search_symbol (caddr_t value, c_linker_sym_t sym, long diffp)

static int	linker_debug_symbol_values (c_linker_sym_t sym, linker_symval_t *symval)

static int	linker_debug_search_symbol_name (caddr_t value, char buf, u_int buflen, long offset)

int	linker_ddb_search_symbol (caddr_t value, c_linker_sym_t sym, long diffp)

int	linker_ddb_symbol_values (c_linker_sym_t sym, linker_symval_t *symval)

int	linker_ddb_search_symbol_name (caddr_t value, char buf, u_int buflen, long offset)

int	linker_search_symbol_name_flags (caddr_t value, char buf, u_int buflen, long offset, int flags)

int	linker_search_symbol_name (caddr_t value, char buf, u_int buflen, long offset)

int	linker_kldload_busy (int flags)

void	linker_kldload_unbusy (int flags)

int	kern_kldload (struct thread td, const char file, int *fileid)

int	sys_kldload (struct thread td, struct kldload_args uap)

int	kern_kldunload (struct thread *td, int fileid, int flags)

int	sys_kldunload (struct thread td, struct kldunload_args uap)

int	sys_kldunloadf (struct thread td, struct kldunloadf_args uap)

int	sys_kldfind (struct thread td, struct kldfind_args uap)

int	sys_kldnext (struct thread td, struct kldnext_args uap)

int	sys_kldstat (struct thread td, struct kldstat_args uap)

int	kern_kldstat (struct thread td, int fileid, struct kld_file_stat stat)

int	sys_kldfirstmod (struct thread td, struct kldfirstmod_args uap)

int	sys_kldsym (struct thread td, struct kldsym_args uap)

static modlist_t	modlist_lookup (const char *name, int ver)

static modlist_t	modlist_newmodule (const char *modname, int version, linker_file_t container)

static void	linker_addmodules (linker_file_t lf, struct mod_metadata start, struct mod_metadata stop, int preload)

static void	linker_preload (void *arg)

	SYSINIT (preload, SI_SUB_KLD, SI_ORDER_MIDDLE, linker_preload, NULL)

static void	linker_preload_finish (void *arg)

	SYSINIT (preload_finish, SI_SUB_KTHREAD_INIT - 100, SI_ORDER_MIDDLE, linker_preload_finish, NULL)

	SYSCTL_STRING (_kern, OID_AUTO, module_path, CTLFLAG_RWTUN, linker_path, sizeof(linker_path), "module load search path")

	TUNABLE_STR ("module_path", linker_path, sizeof(linker_path))

static char *	linker_lookup_file (const char path, int pathlen, const char name, int namelen, struct vattr *vap)

static char *	linker_hints_lookup (const char path, int pathlen, const char modname, int modnamelen, const struct mod_depend *verinfo)

static char *	linker_search_module (const char modname, int modnamelen, const struct mod_depend verinfo)

static char *	linker_search_kld (const char *name)

static bool	linker_root_mounted (void)

int	linker_load_dependencies (linker_file_t lf)

static int	sysctl_kern_function_list_iterate (const char name, void opaque)

static int	sysctl_kern_function_list (SYSCTL_HANDLER_ARGS)

	SYSCTL_PROC (_kern, OID_AUTO, function_list, CTLTYPE_OPAQUE\|CTLFLAG_RD\|CTLFLAG_MPSAFE, NULL, 0, sysctl_kern_function_list, "", "kernel function list")

Variables
const int	kld_off_address = offsetof(struct linker_file, address)

const int	kld_off_filename = offsetof(struct linker_file, filename)

const int	kld_off_pathname = offsetof(struct linker_file, pathname)

const int	kld_off_next = offsetof(struct linker_file, link.tqe_next)

linker_file_t	linker_kernel_file

static struct sx	kld_sx

static u_int	kld_busy

static struct thread *	kld_busy_owner

static int	loadcnt

static linker_class_list_t	classes

static linker_file_list_t	linker_files

static int	next_file_id = 1

static int	linker_no_more_classes = 0

static modlisthead_t	found_modules

static char	linker_hintfile [] = "linker.hints"

static char	linker_path [MAXPATHLEN] = "/boot/kernel;/boot/modules"

static const char *const	linker_ext_list []

Macro Definition Documentation

◆ INT_ALIGN

#define INT_ALIGN	(	base,
		ptr
	)

Value:

ptr = \

(base) + roundup2((ptr) - (base), sizeof(int))

Definition at line 1900 of file kern_linker.c.

◆ LINKER_GET_NEXT_FILE_ID

#define LINKER_GET_NEXT_FILE_ID ( a )

Value:

        do {                                    \
        linker_file_t lftmp;                                            \
                                                                        \
        if (!cold)                                                      \
                sx_assert(&kld_sx, SA_XLOCKED);                         \
retry:                                                                  \
        TAILQ_FOREACH(lftmp, &linker_files, link) {                     \
                if (next_file_id == lftmp->id) {                        \
                        next_file_id++;                                 \
                        goto retry;                                     \
                }                                                       \
        }                                                               \
        (a) = next_file_id;                                             \
} while (0)

Definition at line 124 of file kern_linker.c.

Typedef Documentation

◆ modlist_t

typedef struct modlist* modlist_t

Definition at line 147 of file kern_linker.c.

Function Documentation

◆ __FBSDID()

__FBSDID ( "$FreeBSD$" )

◆ kern_kldload()

int kern_kldload	(	struct thread *	td,
		const char *	file,
		int *	fileid
	)

Definition at line 1128 of file kern_linker.c.

References kld_sx, linker_kldload_busy(), linker_kldload_unbusy(), linker_load_module(), priv_check(), and securelevel_gt().

Referenced by sys_kldload(), and vfs_byname_kld().

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◆ kern_kldstat()

int kern_kldstat	(	struct thread *	td,
		int	fileid,
		struct kld_file_stat *	stat
	)

Definition at line 1351 of file kern_linker.c.

References kld_sx, and linker_find_file_by_id().

Referenced by sys_kldstat().

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◆ kern_kldunload()

int kern_kldunload	(	struct thread *	td,
		int	fileid,
		int	flags
	)

Definition at line 1197 of file kern_linker.c.

References flags, kld_sx, linker_file_unload(), linker_find_file_by_id(), linker_kldload_busy(), linker_kldload_unbusy(), printf(), priv_check(), and securelevel_gt().

Referenced by sys_kldunload(), sys_kldunloadf(), and vfs_byname_kld().

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◆ linker_add_class()

int linker_add_class ( linker_class_t lc )

Definition at line 180 of file kern_linker.c.

References classes, kobj_class_compile(), lc, and linker_no_more_classes.

Referenced by link_elf_init().

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◆ linker_addmodules()

static void linker_addmodules	(	linker_file_t	lf,
		struct mod_metadata **	start,
		struct mod_metadata **	stop,
		int	preload
	)

static

Definition at line 1548 of file kern_linker.c.

References modlist_lookup(), modlist_newmodule(), printf(), start, and stop.

Referenced by linker_load_dependencies(), and linker_preload().

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◆ linker_basename()

static const char * linker_basename ( const char * path )

static

Definition at line 2089 of file kern_linker.c.

References filename, and path.

Referenced by linker_load_module(), linker_make_file(), and sys_kldfind().

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◆ linker_ctf_get()

int linker_ctf_get	(	linker_file_t	file,
		linker_ctf_t *	lc
	)

Definition at line 777 of file kern_linker.c.

References lc.

◆ linker_ddb_search_symbol()

int linker_ddb_search_symbol	(	caddr_t	value,
		c_linker_sym_t *	sym,
		long *	diffp
	)

Definition at line 1017 of file kern_linker.c.

References diffp, linker_debug_search_symbol(), sym, and value.

Referenced by stack_symbol_ddb().

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◆ linker_ddb_search_symbol_name()

int linker_ddb_search_symbol_name	(	caddr_t	value,
		char *	buf,
		u_int	buflen,
		long *	offset
	)

Definition at line 1031 of file kern_linker.c.

References buf, linker_debug_search_symbol_name(), and value.

Referenced by kmsan_report_hook(), and kmsan_report_inline().

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◆ linker_ddb_symbol_values()

int linker_ddb_symbol_values	(	c_linker_sym_t	sym,
		linker_symval_t *	symval
	)

Definition at line 1024 of file kern_linker.c.

References linker_debug_symbol_values(), and sym.

Referenced by stack_symbol_ddb().

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◆ linker_debug_search_symbol()

static int linker_debug_search_symbol	(	caddr_t	value,
		c_linker_sym_t *	sym,
		long *	diffp
	)

static

Definition at line 938 of file kern_linker.c.

References diffp, linker_files, sym, and value.

Referenced by linker_ddb_search_symbol(), and linker_debug_search_symbol_name().

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◆ linker_debug_search_symbol_name()

static int linker_debug_search_symbol_name	(	caddr_t	value,
		char *	buf,
		u_int	buflen,
		long *	offset
	)

static

Definition at line 981 of file kern_linker.c.

References buf, linker_debug_search_symbol(), linker_debug_symbol_values(), sym, and value.

Referenced by linker_ddb_search_symbol_name(), and linker_search_symbol_name_flags().

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◆ linker_debug_symbol_values()

static int linker_debug_symbol_values	(	c_linker_sym_t	sym,
		linker_symval_t *	symval
	)

static

Definition at line 969 of file kern_linker.c.

References linker_files, and sym.

Referenced by linker_ddb_symbol_values(), and linker_debug_search_symbol_name().

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◆ linker_file_add_dependency()

static int linker_file_add_dependency	(	linker_file_t	file,
		linker_file_t	dep
	)

static

Definition at line 783 of file kern_linker.c.

References kld_sx, and realloc().

Referenced by linker_load_dependencies(), linker_load_module(), and linker_preload().

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◆ linker_file_enable_sysctls()

static void linker_file_enable_sysctls ( linker_file_t lf )

static

Definition at line 335 of file kern_linker.c.

References kld_sx, linker_file_lookup_set(), start, stop, sysctl_enable_oid(), sysctl_wlock(), and sysctl_wunlock().

Referenced by linker_load_file().

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◆ linker_file_foreach()

int linker_file_foreach	(	linker_predicate_t *	predicate,
		void *	context
	)

Definition at line 601 of file kern_linker.c.

References kld_sx, and linker_files.

◆ linker_file_function_listall()

int linker_file_function_listall	(	linker_file_t	lf,
		linker_function_nameval_callback_t	callback_func,
		void *	arg
	)

Definition at line 817 of file kern_linker.c.

◆ linker_file_lookup_set()

int linker_file_lookup_set	(	linker_file_t	file,
		const char *	name,
		void *	firstp,
		void *	lastp,
		int *	countp
	)

Definition at line 805 of file kern_linker.c.

References kld_sx, and name.

Referenced by linker_file_enable_sysctls(), linker_file_register_modules(), linker_file_register_sysctls(), linker_file_sysinit(), linker_file_sysuninit(), linker_file_unregister_sysctls(), linker_load_dependencies(), and linker_preload().

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◆ linker_file_lookup_symbol()

caddr_t linker_file_lookup_symbol	(	linker_file_t	file,
		const char *	name,
		int	deps
	)

Definition at line 824 of file kern_linker.c.

References kld_sx, linker_file_lookup_symbol_internal(), name, and sym.

Referenced by elf_lookup(), and elf_obj_lookup().

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◆ linker_file_lookup_symbol_internal()

static caddr_t linker_file_lookup_symbol_internal	(	linker_file_t	file,
		const char *	name,
		int	deps
	)

static

Definition at line 839 of file kern_linker.c.

References kld_sx, linker_file_lookup_symbol_internal(), malloc(), name, and sym.

Referenced by linker_file_lookup_symbol(), and linker_file_lookup_symbol_internal().

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◆ linker_file_register_modules()

static int linker_file_register_modules ( linker_file_t lf )

static

Definition at line 378 of file kern_linker.c.

References kld_sx, linker_file_lookup_set(), linker_kernel_file, module_register(), printf(), start, and stop.

Referenced by linker_init_kernel_modules(), linker_load_file(), and linker_preload().

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◆ linker_file_register_sysctls()

static void linker_file_register_sysctls	(	linker_file_t	lf,
		bool	enable
	)

static

Definition at line 309 of file kern_linker.c.

References kld_sx, linker_file_lookup_set(), start, stop, sysctl_register_disabled_oid(), sysctl_register_oid(), sysctl_wlock(), and sysctl_wunlock().

Referenced by linker_load_file(), and linker_preload().

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◆ linker_file_sysinit()

static void linker_file_sysinit ( linker_file_t lf )

static

Definition at line 197 of file kern_linker.c.

References Giant, kld_sx, linker_file_lookup_set(), start, stop, and sysinit.

Referenced by linker_load_file().

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◆ linker_file_sysuninit()

static void linker_file_sysuninit ( linker_file_t lf )

static

Definition at line 252 of file kern_linker.c.

References Giant, kld_sx, linker_file_lookup_set(), start, stop, and sysinit.

Referenced by linker_file_unload().

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◆ linker_file_unload()

int linker_file_unload	(	linker_file_t	file,
		int	flags
	)

Definition at line 654 of file kern_linker.c.

References flags, found_modules, free(), kld_sx, kobj_delete(), linker_file_sysuninit(), linker_file_unload(), linker_file_unregister_sysctls(), linker_files, module_getfnext(), module_getname(), module_quiesce(), module_release(), module_unload(), and prison0.

Referenced by kern_kldunload(), link_elf_link_preload(), link_elf_load_file(), linker_file_unload(), linker_load_file(), linker_load_module(), linker_preload(), linker_preload_finish(), and linker_release_module().

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◆ linker_file_unregister_sysctls()

static void linker_file_unregister_sysctls ( linker_file_t lf )

static

Definition at line 357 of file kern_linker.c.

References kld_sx, linker_file_lookup_set(), start, stop, sysctl_unregister_oid(), sysctl_wlock(), and sysctl_wunlock().

Referenced by linker_file_unload().

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◆ linker_find_file_by_id()

static linker_file_t linker_find_file_by_id ( int _fileid )

static

Definition at line 589 of file kern_linker.c.

References kld_sx, and linker_files.

Referenced by kern_kldstat(), kern_kldunload(), sys_kldfirstmod(), sys_kldnext(), and sys_kldsym().

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◆ linker_find_file_by_name()

static linker_file_t linker_find_file_by_name ( const char * _filename )

static

Definition at line 569 of file kern_linker.c.

References filename, free(), kld_sx, linker_files, malloc(), and sprintf().

Referenced by linker_load_file(), linker_load_module(), and sys_kldfind().

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◆ linker_hints_lookup()

static char * linker_hints_lookup	(	const char *	path,
		int	pathlen,
		const char *	modname,
		int	modnamelen,
		const struct mod_depend *	verinfo
	)

static

Definition at line 1909 of file kern_linker.c.

References flags, free(), INT_ALIGN, linker_hintfile, linker_lookup_file(), malloc(), NDFREE(), path, printf(), result, snprintf(), vn_close(), vn_open(), and vn_rdwr().

Referenced by linker_search_module().

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◆ linker_init()

static void linker_init ( void * arg )

static

Definition at line 160 of file kern_linker.c.

References classes, kld_sx, and linker_files.

◆ linker_init_kernel_modules()

static void linker_init_kernel_modules ( void )

static

Definition at line 420 of file kern_linker.c.

References kld_sx, linker_file_register_modules(), and linker_kernel_file.

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◆ linker_kldload_busy()

int linker_kldload_busy ( int flags )

Definition at line 1073 of file kern_linker.c.

References flags, kld_busy, kld_busy_owner, and kld_sx.

Referenced by kern_kldload(), and kern_kldunload().

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◆ linker_kldload_unbusy()

void linker_kldload_unbusy ( int flags )

Definition at line 1104 of file kern_linker.c.

References flags, kld_busy, kld_busy_owner, kld_sx, panic(), and wakeup().

Referenced by kern_kldload(), and kern_kldunload().

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◆ linker_load_dependencies()

int linker_load_dependencies ( linker_file_t lf )

Definition at line 2232 of file kern_linker.c.

References kld_sx, linker_addmodules(), linker_file_add_dependency(), linker_file_lookup_set(), linker_kernel_file, linker_load_module(), modlist_lookup(), modlist_lookup2(), printf(), start, and stop.

Referenced by link_elf_load_file().

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◆ linker_load_file()

static int linker_load_file	(	const char *	filename,
		linker_file_t *	result
	)

static

Definition at line 432 of file kern_linker.c.

References classes, filename, kld_sx, lc, linker_file_enable_sysctls(), linker_file_register_modules(), linker_file_register_sysctls(), linker_file_sysinit(), linker_file_unload(), linker_find_file_by_name(), printf(), prison0, and result.

Referenced by linker_load_module().

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◆ linker_load_module()

static int linker_load_module	(	const char *	kldname,
		const char *	modname,
		struct linker_file *	parent,
		const struct mod_depend *	verinfo,
		struct linker_file **	lfpp
	)

static

Definition at line 2160 of file kern_linker.c.

References filename, free(), kld_sx, linker_basename(), linker_file_add_dependency(), linker_file_unload(), linker_find_file_by_name(), linker_load_file(), linker_root_mounted(), linker_search_kld(), linker_search_module(), modlist_lookup2(), and parent.

Referenced by kern_kldload(), linker_load_dependencies(), and linker_reference_module().

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◆ linker_lookup_file()

static char * linker_lookup_file	(	const char *	path,
		int	pathlen,
		const char *	name,
		int	namelen,
		struct vattr *	vap
	)

static

Definition at line 1854 of file kern_linker.c.

References flags, free(), linker_ext_list, malloc(), name, NDFREE(), path, result, snprintf(), type, vn_close(), and vn_open().

Referenced by linker_hints_lookup(), and linker_search_kld().

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◆ linker_make_file()

linker_file_t linker_make_file	(	const char *	pathname,
		linker_class_t	lc
	)

Definition at line 617 of file kern_linker.c.

References filename, kld_sx, kobj_create(), lc, linker_basename(), linker_files, LINKER_GET_NEXT_FILE_ID, and loadcnt.

Referenced by link_elf_init(), link_elf_link_preload(), and link_elf_load_file().

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◆ linker_preload()

static void linker_preload ( void * arg )

static

Definition at line 1571 of file kern_linker.c.

References bootverbose, classes, found_modules, kld_sx, lc, linker_addmodules(), linker_file_add_dependency(), linker_file_lookup_set(), linker_file_register_modules(), linker_file_register_sysctls(), linker_file_unload(), linker_kernel_file, modlist_lookup(), modlist_lookup2(), modlist_newmodule(), panic(), preload_search_info(), preload_search_next_name(), printf(), start, stop, sysinit, and sysinit_add().

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◆ linker_preload_finish()

static void linker_preload_finish ( void * arg )

static

Definition at line 1788 of file kern_linker.c.

References kld_sx, linker_file_unload(), and linker_files.

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◆ linker_reference_module()

int linker_reference_module	(	const char *	modname,
		struct mod_depend *	verinfo,
		linker_file_t *	result
	)

Definition at line 524 of file kern_linker.c.

References kld_sx, linker_load_module(), modlist_lookup2(), and result.

Referenced by loadimage().

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◆ linker_release_module()

int linker_release_module	(	const char *	modname,
		struct mod_depend *	verinfo,
		linker_file_t	lf
	)

Definition at line 544 of file kern_linker.c.

References kld_sx, linker_file_unload(), and modlist_lookup2().

Referenced by loadimage(), and unloadentry().

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◆ linker_root_mounted()

static bool linker_root_mounted ( void )

static

Definition at line 2141 of file kern_linker.c.

References pwd_drop(), pwd_hold(), and rootvnode.

Referenced by linker_load_module().

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◆ linker_search_kld()

static char * linker_search_kld ( const char * name )

static

Definition at line 2066 of file kern_linker.c.

References linker_lookup_file(), linker_path, name, and result.

Referenced by linker_load_module().

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◆ linker_search_module()

static char * linker_search_module	(	const char *	modname,
		int	modnamelen,
		const struct mod_depend *	verinfo
	)

static

Definition at line 2041 of file kern_linker.c.

References linker_hints_lookup(), linker_path, and result.

Referenced by linker_load_module().

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◆ linker_search_symbol_name()

int linker_search_symbol_name	(	caddr_t	value,
		char *	buf,
		u_int	buflen,
		long *	offset
	)

Definition at line 1064 of file kern_linker.c.

References buf, linker_search_symbol_name_flags(), and value.

Referenced by run_interrupt_driven_config_hooks_warning().

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◆ linker_search_symbol_name_flags()

int linker_search_symbol_name_flags	(	caddr_t	value,
		char *	buf,
		u_int	buflen,
		long *	offset,
		int	flags
	)

Definition at line 1043 of file kern_linker.c.

References buf, flags, kld_sx, linker_debug_search_symbol_name(), and value.

Referenced by linker_search_symbol_name(), and stack_symbol().

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◆ linker_stop_class_add()

static void linker_stop_class_add ( void * arg )

static

Definition at line 171 of file kern_linker.c.

References linker_no_more_classes.

◆ MALLOC_DEFINE()

MALLOC_DEFINE	(	M_LINKER	,
		"linker"	,
		"kernel linker"
	)

◆ modlist_lookup()

static modlist_t modlist_lookup	(	const char *	name,
		int	ver
	)

static

Definition at line 1497 of file kern_linker.c.

References found_modules, and name.

Referenced by linker_addmodules(), linker_load_dependencies(), linker_preload(), and modlist_lookup2().

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◆ modlist_lookup2()

static modlist_t modlist_lookup2	(	const char *	name,
		const struct mod_depend *	verinfo
	)

static

Definition at line 1510 of file kern_linker.c.

References found_modules, modlist_lookup(), and name.

Referenced by linker_load_dependencies(), linker_load_module(), linker_preload(), linker_reference_module(), and linker_release_module().

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◆ modlist_newmodule()

static modlist_t modlist_newmodule	(	const char *	modname,
		int	version,
		linker_file_t	container
	)

static

Definition at line 1533 of file kern_linker.c.

References found_modules, malloc(), and panic().

Referenced by linker_addmodules(), and linker_preload().

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◆ SET_DECLARE()

SET_DECLARE	(	modmetadata_set	,
		struct mod_metadata
	)

◆ sys_kldfind()

int sys_kldfind	(	struct thread *	td,
		struct kldfind_args *	uap
	)

Definition at line 1257 of file kern_linker.c.

References filename, free(), kld_sx, linker_basename(), linker_find_file_by_name(), and malloc().

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◆ sys_kldfirstmod()

int sys_kldfirstmod	(	struct thread *	td,
		struct kldfirstmod_args *	uap
	)

Definition at line 1408 of file kern_linker.c.

References kld_sx, linker_find_file_by_id(), and module_getid().

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◆ sys_kldload()

int sys_kldload	(	struct thread *	td,
		struct kldload_args *	uap
	)

Definition at line 1178 of file kern_linker.c.

References free(), kern_kldload(), and malloc().

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◆ sys_kldnext()

int sys_kldnext	(	struct thread *	td,
		struct kldnext_args *	uap
	)

Definition at line 1290 of file kern_linker.c.

References kld_sx, linker_files, and linker_find_file_by_id().

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◆ sys_kldstat()

int sys_kldstat	(	struct thread *	td,
		struct kldstat_args *	uap
	)

Definition at line 1327 of file kern_linker.c.

References free(), kern_kldstat(), and malloc().

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◆ sys_kldsym()

int sys_kldsym	(	struct thread *	td,
		struct kldsym_args *	uap
	)

Definition at line 1437 of file kern_linker.c.

References free(), kld_sx, linker_files, linker_find_file_by_id(), malloc(), and sym.

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◆ sys_kldunload()

int sys_kldunload	(	struct thread *	td,
		struct kldunload_args *	uap
	)

Definition at line 1240 of file kern_linker.c.

References kern_kldunload().

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◆ sys_kldunloadf()

int sys_kldunloadf	(	struct thread *	td,
		struct kldunloadf_args *	uap
	)

Definition at line 1247 of file kern_linker.c.

References kern_kldunload().

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◆ sysctl_kern_function_list()

static int sysctl_kern_function_list ( SYSCTL_HANDLER_ARGS )

static

Definition at line 2324 of file kern_linker.c.

References kld_sx, linker_files, sysctl_kern_function_list_iterate(), and sysctl_wire_old_buffer().

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◆ sysctl_kern_function_list_iterate()

static int sysctl_kern_function_list_iterate	(	const char *	name,
		void *	opaque
	)

static

Definition at line 2311 of file kern_linker.c.

References name, and opaque.

Referenced by sysctl_kern_function_list().

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◆ SYSCTL_PROC()

SYSCTL_PROC	(	_kern	,
		OID_AUTO	,
		function_list	,
		CTLTYPE_OPAQUE\|CTLFLAG_RD\|	CTLFLAG_MPSAFE,
		NULL	,
		0	,
		sysctl_kern_function_list	,
		""	,
		"kernel function list"
	)

◆ SYSCTL_STRING()

SYSCTL_STRING	(	_kern	,
		OID_AUTO	,
		module_path	,
		CTLFLAG_RWTUN	,
		linker_path	,
		sizeof(linker_path)	,
		"module load search path"
	)

◆ SYSINIT() [1/5]

SYSINIT	(	linker	,
		SI_SUB_KLD	,
		SI_ORDER_FIRST	,
		linker_init	,
		NULL
	)

◆ SYSINIT() [2/5]

SYSINIT	(	linker_class	,
		SI_SUB_KLD	,
		SI_ORDER_ANY	,
		linker_stop_class_add	,
		NULL
	)

◆ SYSINIT() [3/5]

SYSINIT	(	linker_kernel	,
		SI_SUB_KLD	,
		SI_ORDER_ANY	,
		linker_init_kernel_modules	,
		NULL
	)

◆ SYSINIT() [4/5]

SYSINIT	(	preload	,
		SI_SUB_KLD	,
		SI_ORDER_MIDDLE	,
		linker_preload	,
		NULL
	)

◆ SYSINIT() [5/5]

SYSINIT	(	preload_finish	,
		SI_SUB_KTHREAD_INIT -	100,
		SI_ORDER_MIDDLE	,
		linker_preload_finish	,
		NULL
	)

◆ TAILQ_HEAD()

typedef TAILQ_HEAD ( modlist )

Definition at line 140 of file kern_linker.c.

References name.

◆ TUNABLE_STR()

TUNABLE_STR	(	"module_path"	,
		linker_path	,
		sizeof(linker_path)
	)

Variable Documentation

◆ classes

linker_class_list_t classes

static

Definition at line 119 of file kern_linker.c.

Referenced by khelp_init_osd(), linker_add_class(), linker_init(), linker_load_file(), and linker_preload().

◆ found_modules

modlisthead_t found_modules

static

Definition at line 148 of file kern_linker.c.

Referenced by linker_file_unload(), linker_preload(), modlist_lookup(), modlist_lookup2(), and modlist_newmodule().

◆ kld_busy

u_int kld_busy

static

Definition at line 110 of file kern_linker.c.

Referenced by linker_kldload_busy(), and linker_kldload_unbusy().

◆ kld_busy_owner

struct thread* kld_busy_owner

static

Definition at line 111 of file kern_linker.c.

Referenced by linker_kldload_busy(), and linker_kldload_unbusy().

◆ kld_off_address

const int kld_off_address = offsetof(struct linker_file, address)

Definition at line 81 of file kern_linker.c.

◆ kld_off_filename

const int kld_off_filename = offsetof(struct linker_file, filename)

Definition at line 82 of file kern_linker.c.

◆ kld_off_next

const int kld_off_next = offsetof(struct linker_file, link.tqe_next)

Definition at line 84 of file kern_linker.c.

◆ kld_off_pathname

const int kld_off_pathname = offsetof(struct linker_file, pathname)

Definition at line 83 of file kern_linker.c.

◆ kld_sx

struct sx kld_sx

static

Definition at line 109 of file kern_linker.c.

Referenced by kern_kldload(), kern_kldstat(), kern_kldunload(), linker_file_add_dependency(), linker_file_enable_sysctls(), linker_file_foreach(), linker_file_lookup_set(), linker_file_lookup_symbol(), linker_file_lookup_symbol_internal(), linker_file_register_modules(), linker_file_register_sysctls(), linker_file_sysinit(), linker_file_sysuninit(), linker_file_unload(), linker_file_unregister_sysctls(), linker_find_file_by_id(), linker_find_file_by_name(), linker_init(), linker_init_kernel_modules(), linker_kldload_busy(), linker_kldload_unbusy(), linker_load_dependencies(), linker_load_file(), linker_load_module(), linker_make_file(), linker_preload(), linker_preload_finish(), linker_reference_module(), linker_release_module(), linker_search_symbol_name_flags(), sys_kldfind(), sys_kldfirstmod(), sys_kldnext(), sys_kldsym(), and sysctl_kern_function_list().

◆ linker_ext_list

const char* const linker_ext_list[]

static

Initial value:

= {
        "",
        ".ko",
        NULL
}

Definition at line 1842 of file kern_linker.c.

Referenced by linker_lookup_file().

◆ linker_files

linker_file_list_t linker_files

static

Definition at line 120 of file kern_linker.c.

Referenced by linker_debug_search_symbol(), linker_debug_symbol_values(), linker_file_foreach(), linker_file_unload(), linker_find_file_by_id(), linker_find_file_by_name(), linker_init(), linker_make_file(), linker_preload_finish(), sys_kldnext(), sys_kldsym(), and sysctl_kern_function_list().

◆ linker_hintfile

char linker_hintfile[] = "linker.hints"

static

Definition at line 1834 of file kern_linker.c.

Referenced by linker_hints_lookup().

◆ linker_kernel_file

linker_file_t linker_kernel_file

Definition at line 107 of file kern_linker.c.

Referenced by link_elf_init(), linker_file_register_modules(), linker_init_kernel_modules(), linker_load_dependencies(), and linker_preload().

◆ linker_no_more_classes

int linker_no_more_classes = 0

static

Definition at line 122 of file kern_linker.c.

Referenced by linker_add_class(), and linker_stop_class_add().

◆ linker_path

char linker_path[MAXPATHLEN] = "/boot/kernel;/boot/modules"

static

Definition at line 1835 of file kern_linker.c.

Referenced by linker_search_kld(), and linker_search_module().

◆ loadcnt

int loadcnt

static

Definition at line 117 of file kern_linker.c.

Referenced by linker_make_file().

◆ next_file_id

int next_file_id = 1

static

Definition at line 121 of file kern_linker.c.

Macros

Typedefs

Functions

Variables

Macro Definition Documentation

◆ INT_ALIGN

◆ LINKER_GET_NEXT_FILE_ID

Typedef Documentation

◆ modlist_t

Function Documentation

◆ __FBSDID()

◆ kern_kldload()

◆ kern_kldstat()

◆ kern_kldunload()

◆ linker_add_class()

◆ linker_addmodules()

◆ linker_basename()

◆ linker_ctf_get()

◆ linker_ddb_search_symbol()

◆ linker_ddb_search_symbol_name()

◆ linker_ddb_symbol_values()

◆ linker_debug_search_symbol()

◆ linker_debug_search_symbol_name()

◆ linker_debug_symbol_values()

◆ linker_file_add_dependency()

◆ linker_file_enable_sysctls()

◆ linker_file_foreach()

◆ linker_file_function_listall()

◆ linker_file_lookup_set()

◆ linker_file_lookup_symbol()

◆ linker_file_lookup_symbol_internal()

◆ linker_file_register_modules()

◆ linker_file_register_sysctls()

◆ linker_file_sysinit()

◆ linker_file_sysuninit()

◆ linker_file_unload()

◆ linker_file_unregister_sysctls()

◆ linker_find_file_by_id()

◆ linker_find_file_by_name()

◆ linker_hints_lookup()

◆ linker_init()

◆ linker_init_kernel_modules()

◆ linker_kldload_busy()

◆ linker_kldload_unbusy()

◆ linker_load_dependencies()

◆ linker_load_file()

◆ linker_load_module()

◆ linker_lookup_file()

◆ linker_make_file()

◆ linker_preload()

◆ linker_preload_finish()

◆ linker_reference_module()

◆ linker_release_module()

◆ linker_root_mounted()

◆ linker_search_kld()

◆ linker_search_module()

◆ linker_search_symbol_name()

◆ linker_search_symbol_name_flags()

◆ linker_stop_class_add()

◆ MALLOC_DEFINE()

◆ modlist_lookup()

◆ modlist_lookup2()

◆ modlist_newmodule()

◆ SET_DECLARE()

◆ sys_kldfind()

◆ sys_kldfirstmod()

◆ sys_kldload()

◆ sys_kldnext()

◆ sys_kldstat()

◆ sys_kldsym()

◆ sys_kldunload()

◆ sys_kldunloadf()

◆ sysctl_kern_function_list()

◆ sysctl_kern_function_list_iterate()

◆ SYSCTL_PROC()

◆ SYSCTL_STRING()

◆ SYSINIT() [1/5]

◆ SYSINIT() [2/5]

◆ SYSINIT() [3/5]

◆ SYSINIT() [4/5]