strace/fanotify.c
Mike Frysinger 28e3d6fd1c hppa: fix fanotify_mark decoding
The parisc kernel has some legacy baggage here and decodes the 64bit
field in the reverse order.  Handle it in strace too.

* fanotify.c [HPPA] (sys_fanotify_mark): Reverse the mask bits.
2015-02-26 20:02:03 +00:00

69 lines
1.4 KiB
C

#include "defs.h"
#include "xlat/fan_classes.h"
#include "xlat/fan_init_flags.h"
#ifndef FAN_ALL_CLASS_BITS
# define FAN_ALL_CLASS_BITS (FAN_CLASS_NOTIF | FAN_CLASS_CONTENT | FAN_CLASS_PRE_CONTENT)
#endif
#ifndef FAN_NOFD
# define FAN_NOFD -1
#endif
int
sys_fanotify_init(struct tcb *tcp)
{
unsigned flags;
if (exiting(tcp))
return 0;
flags = tcp->u_arg[0];
printxval(fan_classes, flags & FAN_ALL_CLASS_BITS, "FAN_CLASS_???");
flags &= ~FAN_ALL_CLASS_BITS;
if (flags) {
tprints("|");
printflags(fan_init_flags, flags, "FAN_???");
}
tprints(", ");
tprint_open_modes((unsigned) tcp->u_arg[1]);
return 0;
}
#include "xlat/fan_mark_flags.h"
#include "xlat/fan_event_flags.h"
int
sys_fanotify_mark(struct tcb *tcp)
{
unsigned long long mask = 0;
int argn;
if (exiting(tcp))
return 0;
printfd(tcp, tcp->u_arg[0]);
tprints(", ");
printflags(fan_mark_flags, (unsigned) tcp->u_arg[1], "FAN_MARK_???");
tprints(", ");
/*
* the mask argument is defined as 64-bit,
* but kernel uses the lower 32 bits only.
*/
argn = getllval(tcp, &mask, 2);
#ifdef HPPA
/* Parsic is weird. See arch/parisc/kernel/sys_parisc32.c. */
mask = (mask << 32) | (mask >> 32);
#endif
printflags(fan_event_flags, mask, "FAN_???");
tprints(", ");
if ((int) tcp->u_arg[argn] == FAN_NOFD)
tprints("FAN_NOFD, ");
else
print_dirfd(tcp, tcp->u_arg[argn]);
printpath(tcp, tcp->u_arg[argn + 1]);
return 0;
}