Differential D26109 Diff 76028 head/lib/libc/gen/dlfcn.c

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head/lib/libc/gen/dlfcn.c

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	#include <sys/mman.h>			#include <sys/mman.h>
	#include <dlfcn.h>			#include <dlfcn.h>
	#include <link.h>			#include <link.h>
	#include <stddef.h>			#include <stddef.h>
	#include "namespace.h"			#include "namespace.h"
	#include <pthread.h>			#include <pthread.h>
	#include "un-namespace.h"			#include "un-namespace.h"
	#include "libc_private.h"			#include "libc_private.h"
				#include "reentrant.h"

	static char sorry[] = "Service unavailable";			static char sorry[] = "Service unavailable";

	void _rtld_thread_init(void *);			void _rtld_thread_init(void *);
	void _rtld_atfork_pre(int *);			void _rtld_atfork_pre(int *);
	void _rtld_atfork_post(int *);			void _rtld_atfork_post(int *);

	/*			/*
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	{			{

	_rtld_error(sorry);			_rtld_error(sorry);
	}			}

	#ifndef IN_LIBDL			#ifndef IN_LIBDL
	static pthread_once_t dl_phdr_info_once = PTHREAD_ONCE_INIT;			static pthread_once_t dl_phdr_info_once = PTHREAD_ONCE_INIT;
	static struct dl_phdr_info phdr_info;			static struct dl_phdr_info phdr_info;
				static mutex_t dl_phdr_info_lock = MUTEX_INITIALIZER;

	static void			static void
	dl_init_phdr_info(void)			dl_init_phdr_info(void)
	{			{
	Elf_Auxinfo *auxp;			Elf_Auxinfo *auxp;
	unsigned int i;			unsigned int i;

	for (auxp = __elf_aux_vector; auxp->a_type != AT_NULL; auxp++) {			for (auxp = __elf_aux_vector; auxp->a_type != AT_NULL; auxp++) {
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	}			}
	#endif			#endif

	#pragma weak dl_iterate_phdr			#pragma weak dl_iterate_phdr
	int			int
	dl_iterate_phdr(int (callback)(struct dl_phdr_info , size_t, void *) __unused,			dl_iterate_phdr(int (callback)(struct dl_phdr_info , size_t, void *) __unused,
	void *data __unused)			void *data __unused)
	{			{

	#ifndef IN_LIBDL			#ifndef IN_LIBDL
				int ret;

	__init_elf_aux_vector();			__init_elf_aux_vector();
	if (__elf_aux_vector == NULL)			if (__elf_aux_vector == NULL)
	return (1);			return (1);
	_once(&dl_phdr_info_once, dl_init_phdr_info);			_once(&dl_phdr_info_once, dl_init_phdr_info);
	return (callback(&phdr_info, sizeof(phdr_info), data));			mutex_lock(&dl_phdr_info_lock);
				ret = callback(&phdr_info, sizeof(phdr_info), data);
				mutex_unlock(&dl_phdr_info_lock);
				return (ret);
	#else			#else
	return (0);			return (0);
	#endif			#endif
	}			}

	#pragma weak fdlopen			#pragma weak fdlopen
	void *			void *
	fdlopen(int fd __unused, int mode __unused)			fdlopen(int fd __unused, int mode __unused)
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