nosyscallsreal.c File Reference

#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/select.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <sys/syscall.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <ctype.h>
#include <syslog.h>
#include "constants.h"
#include "syscallwrappers.h"

Go to the source code of this file.

Macros
#define	_GNU_SOURCE
#define	_XOPEN_SOURCE   500
#define	REAL_FUNC_PASSTHROUGH(name)   return name
#define	REAL_FUNC_PASSTHROUGH_TYPED(type, name)   REAL_FUNC_PASSTHROUGH(name)
#define	REAL_FUNC_PASSTHROUGH_TYPED_DLSYM(type, name)   return dlsym(RTLD_NEXT, #name)
#define	REAL_FUNC_PASSTHROUGH_PID_T(name)   REAL_FUNC_PASSTHROUGH(name)
#define	REAL_FUNC_PASSTHROUGH_VOID(name)   name
#define	SYMBOL_NOT_FOUND_ERROR(name)

Functions
void	_dmtcp_lock ()
void	_dmtcp_unlock ()
void	initialize_wrappers ()
int	_real_pthread_mutex_lock (pthread_mutex_t *mutex)
int	_real_pthread_mutex_trylock (pthread_mutex_t *mutex)
int	_real_pthread_mutex_unlock (pthread_mutex_t *mutex)
int	_real_pthread_rwlock_unlock (pthread_rwlock_t *rwlock)
int	_real_pthread_rwlock_rdlock (pthread_rwlock_t *rwlock)
int	_real_pthread_rwlock_wrlock (pthread_rwlock_t *rwlock)
ssize_t	_real_read (int fd, void *buf, size_t count)
ssize_t	_real_write (int fd, const void *buf, size_t count)
int	_real_select (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds, struct timeval *timeout)
int	_real_socket (int domain, int type, int protocol)
	call the libc version of this function via dlopen/dlsym More...
int	_real_connect (int sockfd, const struct sockaddr *serv_addr, socklen_t addrlen)
	call the libc version of this function via dlopen/dlsym More...
int	_real_bind (int sockfd, const struct sockaddr *my_addr, socklen_t addrlen)
	call the libc version of this function via dlopen/dlsym More...
int	_real_listen (int sockfd, int backlog)
	call the libc version of this function via dlopen/dlsym More...
int	_real_accept (int sockfd, struct sockaddr *addr, socklen_t *addrlen)
	call the libc version of this function via dlopen/dlsym More...
int	_real_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen)
	call the libc version of this function via dlopen/dlsym More...
int	_real_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen)
int	_real_execve (const char *filename, char *const argv[], char *const envp[])
int	_real_execv (const char *path, char *const argv[])
int	_real_execvp (const char *file, char *const argv[])
int	_real_system (const char *cmd)
pid_t	_real_fork (void)
int	_real_close (int fd)
int	_real_fclose (FILE *fp)
int	_real_dup (int oldfd)
int	_real_dup2 (int oldfd, int newfd)
void	_real_exit (int status)
LIB_PRIVATE int	_real_fcntl (int fd, int cmd, void *arg)
int	_real_ptsname_r (int fd, char *buf, size_t buflen)
int	_real_socketpair (int d, int type, int protocol, int sv[2])
void	_real_openlog (const char *ident, int option, int facility)
void	_real_closelog (void)
int	_dmtcp_unsetenv (const char *name)
off_t	_real_lseek (int fd, off_t offset, int whence)
pid_t	_real_getpid (void)
pid_t	_real_getppid (void)
int	_real_tcsetpgrp (int fd, pid_t pgrp)
int	_real_tcgetpgrp (int fd)
pid_t	_real_getpgrp (void)
pid_t	_real_setpgrp (void)
pid_t	_real_getpgid (pid_t pid)
int	_real_setpgid (pid_t pid, pid_t pgid)
pid_t	_real_getsid (pid_t pid)
pid_t	_real_setsid (void)
int	_real_kill (pid_t pid, int sig)
pid_t	_real_wait (__WAIT_STATUS stat_loc)
pid_t	_real_waitpid (pid_t pid, int *stat_loc, int options)
int	_real_waitid (idtype_t idtype, id_t id, siginfo_t *infop, int options)
pid_t	_real_wait3 (__WAIT_STATUS status, int options, struct rusage *rusage)
pid_t	_real_wait4 (pid_t pid, __WAIT_STATUS status, int options, struct rusage *rusage)
int	_real_ioctl (int d, unsigned long int request,...)
LIB_PRIVATE void *	_real_mmap (void *addr, size_t length, int prot, int flags, int fd, off_t offset)
LIB_PRIVATE int	_real_munmap (void *addr, size_t length)
long	_real_syscall (long sys_num,...)
LIB_PRIVATE pid_t	dmtcp_gettid ()
LIB_PRIVATE int	dmtcp_tkill (int tid, int sig)
LIB_PRIVATE int	dmtcp_tgkill (int tgid, int tid, int sig)
int	_real_open (const char *pathname, int flags,...)
int	_real_open64 (const char *pathname, int flags,...)
FILE *	_real_fopen (const char *path, const char *mode)
FILE *	_real_fopen64 (const char *path, const char *mode)
int	_real_shmget (key_t key, size_t size, int shmflg)
void *	_real_shmat (int shmid, const void *shmaddr, int shmflg)
int	_real_shmdt (const void *shmaddr)
int	_real_shmctl (int shmid, int cmd, struct shmid_ds *buf)
LIB_PRIVATE int	_real_poll (struct pollfd *fds, nfds_t nfds, int timeout)
ssize_t	_real_readlink (const char *path, char *buf, size_t bufsiz)
void	_dmtcp_setup_trampolines ()

Variables
int	send_sigwinch

Macro Definition Documentation

#define _GNU_SOURCE

Definition at line 23 of file nosyscallsreal.c.

#define _XOPEN_SOURCE   500

Definition at line 24 of file nosyscallsreal.c.

#define REAL_FUNC_PASSTHROUGH

(

name)

return name

Definition at line 76 of file nosyscallsreal.c.

#define REAL_FUNC_PASSTHROUGH_PID_T

(

name)

REAL_FUNC_PASSTHROUGH(name)

Definition at line 81 of file nosyscallsreal.c.

#define REAL_FUNC_PASSTHROUGH_TYPED	(		type,
			name
	)		REAL_FUNC_PASSTHROUGH(name)

Definition at line 78 of file nosyscallsreal.c.

#define REAL_FUNC_PASSTHROUGH_TYPED_DLSYM	(		type,
			name
	)		return dlsym(RTLD_NEXT, #name)

Definition at line 79 of file nosyscallsreal.c.

#define REAL_FUNC_PASSTHROUGH_VOID

(

name)

name

Definition at line 84 of file nosyscallsreal.c.

#define SYMBOL_NOT_FOUND_ERROR

(

name)

Value:

fprintf(stderr, "ERROR: DMTCP internal error.\n" \
                  "  Symbol %s not found!\n", #name); \
  abort(); \
  return -1;

Definition at line 86 of file nosyscallsreal.c.

Function Documentation

void _dmtcp_lock

(

)

Definition at line 92 of file nosyscallsreal.c.

void _dmtcp_setup_trampolines

(

)

Definition at line 446 of file nosyscallsreal.c.

void _dmtcp_unlock

(

)

Definition at line 93 of file nosyscallsreal.c.

int _dmtcp_unsetenv

(

const char *

name)

Definition at line 261 of file nosyscallsreal.c.

int _real_accept	(	int	sockfd,
		struct sockaddr *	addr,
		socklen_t *	addrlen
	)

call the libc version of this function via dlopen/dlsym

Definition at line 161 of file nosyscallsreal.c.

int _real_bind	(	int	sockfd,
		const struct sockaddr *	my_addr,
		socklen_t	addrlen
	)

call the libc version of this function via dlopen/dlsym

Definition at line 149 of file nosyscallsreal.c.

int _real_close

(

int

fd)

Definition at line 205 of file nosyscallsreal.c.

void _real_closelog

(

void

)

Definition at line 256 of file nosyscallsreal.c.

int _real_connect	(	int	sockfd,
		const struct sockaddr *	serv_addr,
		socklen_t	addrlen
	)

call the libc version of this function via dlopen/dlsym

Definition at line 143 of file nosyscallsreal.c.

int _real_dup

(

int

oldfd)

Definition at line 215 of file nosyscallsreal.c.

int _real_dup2	(	int	oldfd,
		int	newfd
	)

Definition at line 220 of file nosyscallsreal.c.

int _real_execv	(	const char *	path,
		char *const	argv[]
	)

Definition at line 185 of file nosyscallsreal.c.

int _real_execve	(	const char *	filename,
		char *const	argv[],
		char *const	envp[]
	)

Definition at line 179 of file nosyscallsreal.c.

int _real_execvp	(	const char *	file,
		char *const	argv[]
	)

Definition at line 190 of file nosyscallsreal.c.

void _real_exit

(

int

status)

Definition at line 230 of file nosyscallsreal.c.

int _real_fclose

(

FILE *

fp)

Definition at line 210 of file nosyscallsreal.c.

LIB_PRIVATE int _real_fcntl	(	int	fd,
		int	cmd,
		void *	arg
	)

Definition at line 236 of file nosyscallsreal.c.

FILE* _real_fopen	(	const char *	path,
		const char *	mode
	)

Definition at line 412 of file nosyscallsreal.c.

FILE* _real_fopen64	(	const char *	path,
		const char *	mode
	)

Definition at line 416 of file nosyscallsreal.c.

pid_t _real_fork

(

void

)

Definition at line 200 of file nosyscallsreal.c.

pid_t _real_getpgid

(

pid_t

pid)

Definition at line 293 of file nosyscallsreal.c.

pid_t _real_getpgrp

(

void

)

Definition at line 285 of file nosyscallsreal.c.

pid_t _real_getpid

(

void

)

Definition at line 269 of file nosyscallsreal.c.

pid_t _real_getppid

(

void

)

Definition at line 273 of file nosyscallsreal.c.

pid_t _real_getsid

(

pid_t

pid)

Definition at line 301 of file nosyscallsreal.c.

int _real_getsockopt	(	int	s,
		int	level,
		int	optname,
		void *	optval,
		socklen_t *	optlen
	)

Definition at line 173 of file nosyscallsreal.c.

int _real_ioctl	(	int	d,
		unsigned long int	request,
			...
	)

Definition at line 334 of file nosyscallsreal.c.

int _real_kill	(	pid_t	pid,
		int	sig
	)

Definition at line 309 of file nosyscallsreal.c.

int _real_listen	(	int	sockfd,
		int	backlog
	)

call the libc version of this function via dlopen/dlsym

Definition at line 155 of file nosyscallsreal.c.

off_t _real_lseek	(	int	fd,
		off_t	offset,
		int	whence
	)

Definition at line 265 of file nosyscallsreal.c.

LIB_PRIVATE void* _real_mmap	(	void *	addr,
		size_t	length,
		int	prot,
		int	flags,
		int	fd,
		off_t	offset
	)

Definition at line 349 of file nosyscallsreal.c.

LIB_PRIVATE int _real_munmap	(	void *	addr,
		size_t	length
	)

Definition at line 355 of file nosyscallsreal.c.

int _real_open	(	const char *	pathname,
		int	flags,
			...
	)

Definition at line 388 of file nosyscallsreal.c.

int _real_open64	(	const char *	pathname,
		int	flags,
			...
	)

Definition at line 400 of file nosyscallsreal.c.

void _real_openlog	(	const char *	ident,
		int	option,
		int	facility
	)

Definition at line 251 of file nosyscallsreal.c.

LIB_PRIVATE int _real_poll	(	struct pollfd *	fds,
		nfds_t	nfds,
		int	timeout
	)

Definition at line 437 of file nosyscallsreal.c.

int _real_pthread_mutex_lock

(

pthread_mutex_t *

mutex)

Definition at line 99 of file nosyscallsreal.c.

int _real_pthread_mutex_trylock

(

pthread_mutex_t *

mutex)

Definition at line 103 of file nosyscallsreal.c.

int _real_pthread_mutex_unlock

(

pthread_mutex_t *

mutex)

Definition at line 107 of file nosyscallsreal.c.

int _real_pthread_rwlock_rdlock

(

pthread_rwlock_t *

rwlock)

Definition at line 115 of file nosyscallsreal.c.

int _real_pthread_rwlock_unlock

(

pthread_rwlock_t *

rwlock)

Definition at line 111 of file nosyscallsreal.c.

int _real_pthread_rwlock_wrlock

(

pthread_rwlock_t *

rwlock)

Definition at line 119 of file nosyscallsreal.c.

int _real_ptsname_r	(	int	fd,
		char *	buf,
		size_t	buflen
	)

Definition at line 241 of file nosyscallsreal.c.

ssize_t _real_read	(	int	fd,
		void *	buf,
		size_t	count
	)

Definition at line 123 of file nosyscallsreal.c.

ssize_t _real_readlink	(	const char *	path,
		char *	buf,
		size_t	bufsiz
	)

Definition at line 441 of file nosyscallsreal.c.

int _real_select	(	int	nfds,
		fd_set *	readfds,
		fd_set *	writefds,
		fd_set *	exceptfds,
		struct timeval *	timeout
	)

Definition at line 131 of file nosyscallsreal.c.

int _real_setpgid	(	pid_t	pid,
		pid_t	pgid
	)

Definition at line 297 of file nosyscallsreal.c.

pid_t _real_setpgrp

(

void

)

Definition at line 289 of file nosyscallsreal.c.

pid_t _real_setsid

(

void

)

Definition at line 305 of file nosyscallsreal.c.

int _real_setsockopt	(	int	s,
		int	level,
		int	optname,
		const void *	optval,
		socklen_t	optlen
	)

call the libc version of this function via dlopen/dlsym

Definition at line 167 of file nosyscallsreal.c.

void* _real_shmat	(	int	shmid,
		const void *	shmaddr,
		int	shmflg
	)

Definition at line 424 of file nosyscallsreal.c.

int _real_shmctl	(	int	shmid,
		int	cmd,
		struct shmid_ds *	buf
	)

Definition at line 432 of file nosyscallsreal.c.

int _real_shmdt

(

const void *

shmaddr)

Definition at line 428 of file nosyscallsreal.c.

int _real_shmget	(	key_t	key,
		size_t	size,
		int	shmflg
	)

Definition at line 420 of file nosyscallsreal.c.

int _real_socket	(	int	domain,
		int	type,
		int	protocol
	)

call the libc version of this function via dlopen/dlsym

Definition at line 137 of file nosyscallsreal.c.

int _real_socketpair	(	int	d,
		int	type,
		int	protocol,
		int	sv[2]
	)

Definition at line 246 of file nosyscallsreal.c.

long _real_syscall	(	long	sys_num,
			...
	)

Definition at line 361 of file nosyscallsreal.c.

int _real_system

(

const char *

cmd)

Definition at line 195 of file nosyscallsreal.c.

int _real_tcgetpgrp

(

int

fd)

Definition at line 281 of file nosyscallsreal.c.

int _real_tcsetpgrp	(	int	fd,
		pid_t	pgrp
	)

Definition at line 277 of file nosyscallsreal.c.

pid_t _real_wait

(

__WAIT_STATUS

stat_loc)

Definition at line 313 of file nosyscallsreal.c.

pid_t _real_wait3	(	__WAIT_STATUS	status,
		int	options,
		struct rusage *	rusage
	)

Definition at line 325 of file nosyscallsreal.c.

pid_t _real_wait4	(	pid_t	pid,
		__WAIT_STATUS	status,
		int	options,
		struct rusage *	rusage
	)

Definition at line 329 of file nosyscallsreal.c.

int _real_waitid	(	idtype_t	idtype,
		id_t	id,
		siginfo_t *	infop,
		int	options
	)

Definition at line 321 of file nosyscallsreal.c.

pid_t _real_waitpid	(	pid_t	pid,
		int *	stat_loc,
		int	options
	)

Definition at line 317 of file nosyscallsreal.c.

ssize_t _real_write	(	int	fd,
		const void *	buf,
		size_t	count
	)

Definition at line 127 of file nosyscallsreal.c.

LIB_PRIVATE pid_t dmtcp_gettid

(

)

Definition at line 378 of file nosyscallsreal.c.

LIB_PRIVATE int dmtcp_tgkill	(	int	tgid,
		int	tid,
		int	sig
	)

Definition at line 384 of file nosyscallsreal.c.

LIB_PRIVATE int dmtcp_tkill	(	int	tid,
		int	sig
	)

Definition at line 381 of file nosyscallsreal.c.

void initialize_wrappers

(

)

Definition at line 95 of file nosyscallsreal.c.

Variable Documentation

int send_sigwinch

Definition at line 333 of file nosyscallsreal.c.