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Added support for epoll.

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git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2241
This commit is contained in:
Nicholas Nethercote 2004-02-10 23:44:15 +00:00
parent 863515c9a4
commit b2e8445916
3 changed files with 63 additions and 2 deletions
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51
coregrind/vg_syscalls.c
View File

@ -2128,7 +2128,7 @@ PRE(fcntl)
POST(fcntl)
{
if (arg2 == VKI_F_DUPFD)
if(VG_(clo_track_fds))
if (VG_(clo_track_fds))
record_fd_open(tid, res, VG_(resolve_filename)(res));
}
@ -3945,6 +3945,52 @@ POST(poll)
}
}
PRE(epoll_create)
{
/* int epoll_create(int size) */
MAYBE_PRINTF("epoll_create ( %d )\n", arg1);
}
POST(epoll_create)
{
if (!fd_allowed(res, "open", tid)) {
VG_(close)(res);
res = -VKI_EMFILE;
} else {
if (VG_(clo_track_fds))
record_fd_open (tid, res, NULL);
}
}
PRE(epoll_ctl)
{
/* int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event) */
static const char* epoll_ctl_s[3] = {
"EPOLL_CTL_ADD",
"EPOLL_CTL_DEL",
"EPOLL_CTL_MOD"
};
MAYBE_PRINTF("epoll_ctl ( %d, %s, %d, %p )\n",
arg1, ( arg2<3 ? epoll_ctl_s[arg2] : "?" ), arg3, arg4);
SYSCALL_TRACK( pre_mem_read, tid, "epoll_ctl(event)",
arg4, sizeof(struct vki_epoll_event) );
}
PRE(epoll_wait)
{
/* int epoll_wait(int epfd, struct epoll_event * events,
int maxevents, int timeout) */
MAYBE_PRINTF("epoll_wait ( %d, %p, %d, %d )\n", arg1, arg2, arg3, arg4);
SYSCALL_TRACK( pre_mem_write, tid, "epoll_wait(events)",
arg2, sizeof(struct vki_epoll_event)*arg3);
}
POST(epoll_wait)
{
if (res > 0)
VG_TRACK( post_mem_write, arg2, sizeof(struct vki_epoll_event)*res ) ;
}
PRE(readlink)
{
/* int readlink(const char *path, char *buf, size_t bufsiz); */
@ -5201,6 +5247,9 @@ static const struct sys_info sys_info[] = {
SYSBA(creat, True),
SYSBA(pipe, False),
SYSBA(poll, True),
SYSBA(epoll_create, False),
SYSB_(epoll_ctl, False),
SYSBA(epoll_wait, True),
SYSBA(readlink, False),
SYSBA(readv, True),
SYSB_(rename, False),

1
coregrind/vg_unsafe.h
View File

@ -93,7 +93,6 @@
#include <sys/poll.h>
/*--------------------------------------------------------------------*/
/*--- end vg_unsafe.h ---*/
/*--------------------------------------------------------------------*/

13
include/vg_kerneliface.h
View File

@ -509,6 +509,19 @@ struct vki_pollfd {
#define VKI_POLLNVAL 0x0020
/* sys/epoll.h */
typedef union vki_epoll_data {
void *ptr;
Int fd;
UInt u32;
ULong u64;
} vki_epoll_data_t;
struct vki_epoll_event {
UInt events; /* Epoll events */
vki_epoll_data_t data; /* User data variable */
};
/*
./include/asm-i386/posix_types.h:typedef long __kernel_suseconds_t;