Decode the arguments passed to _umtx_op(). In particular, decode the
opcode. MFC after: 1 week Sponsored by: Norse
This commit is contained in:
parent
623b63e761
commit
fdb5bf37fa
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=273053
@ -57,6 +57,7 @@ extern int errno;
|
||||
#include <sys/socket.h>
|
||||
#include <sys/stat.h>
|
||||
#include <sys/sysent.h>
|
||||
#include <sys/umtx.h>
|
||||
#include <sys/un.h>
|
||||
#include <sys/queue.h>
|
||||
#include <sys/wait.h>
|
||||
@ -1268,6 +1269,26 @@ ktrsyscall(struct ktr_syscall *ktr, u_int flags)
|
||||
ip++;
|
||||
narg--;
|
||||
break;
|
||||
case SYS__umtx_op:
|
||||
print_number(ip, narg, c);
|
||||
putchar(',');
|
||||
umtxopname(*ip);
|
||||
switch (*ip) {
|
||||
case UMTX_OP_CV_WAIT:
|
||||
ip++;
|
||||
narg--;
|
||||
putchar(',');
|
||||
umtxcvwaitflags(*ip);
|
||||
break;
|
||||
case UMTX_OP_RW_RDLOCK:
|
||||
ip++;
|
||||
narg--;
|
||||
putchar(',');
|
||||
umtxrwlockflags(*ip);
|
||||
break;
|
||||
}
|
||||
ip++;
|
||||
narg--;
|
||||
}
|
||||
}
|
||||
while (narg > 0) {
|
||||
|
@ -185,6 +185,7 @@ cat <<_EOF_
|
||||
#include <sys/ipc.h>
|
||||
#include <sys/rtprio.h>
|
||||
#include <sys/shm.h>
|
||||
#include <sys/umtx.h>
|
||||
#include <nfsserver/nfs.h>
|
||||
#include <ufs/ufs/quota.h>
|
||||
#include <sys/capsicum.h>
|
||||
@ -489,6 +490,7 @@ auto_if_type "sockipprotoname" "IPPROTO_[[:alnum:]]+[[:space:]]+"
|
||||
auto_switch_type "sockoptname" "SO_[A-Z]+[[:space:]]+0x[0-9]+" "sys/socket.h"
|
||||
auto_switch_type "socktypename" "SOCK_[A-Z]+[[:space:]]+[1-9]+[0-9]*" "sys/socket.h"
|
||||
auto_or_type "thrcreateflagsname" "THR_[A-Z]+[[:space:]]+0x[0-9]+" "sys/thr.h"
|
||||
auto_switch_type "umtxopname" "UMTX_OP_[[:alnum:]_]+[[:space:]]+[0-9]+" "sys/umtx.h"
|
||||
auto_switch_type "vmresultname" "KERN_[A-Z]+[[:space:]]+[0-9]+" "vm/vm_param.h"
|
||||
auto_or_type "wait6optname" "W[A-Z]+[[:space:]]+[0-9]+" "sys/wait.h"
|
||||
auto_switch_type "whencename" "SEEK_[A-Z]+[[:space:]]+[0-9]+" "sys/unistd.h"
|
||||
@ -677,6 +679,62 @@ cat <<_EOF_
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* AUTO - Special
|
||||
*
|
||||
* Just print 0 as 0.
|
||||
*/
|
||||
void
|
||||
umtxcvwaitflags(intmax_t arg)
|
||||
{
|
||||
int or = 0;
|
||||
if (arg == 0) {
|
||||
printf("0");
|
||||
return;
|
||||
}
|
||||
printf("%#jx<", (uintmax_t)arg);
|
||||
_EOF_
|
||||
egrep "^#[[:space:]]*define[[:space:]]+CVWAIT_[A-Z_]+[[:space:]]+0x[0-9]+[[:space:]]*" \
|
||||
$include_dir/sys/umtx.h | \
|
||||
awk '{ for (i = 1; i <= NF; i++) \
|
||||
if ($i ~ /define/) \
|
||||
break; \
|
||||
++i; \
|
||||
printf "\tif (!((arg > 0) ^ ((%s) > 0)))\n\t\tif_print_or(arg, %s, or);\n", $i, $i }'
|
||||
cat <<_EOF_
|
||||
printf(">");
|
||||
if (or == 0)
|
||||
printf("<invalid>%jd", arg);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* AUTO - Special
|
||||
*
|
||||
* Just print 0 as 0.
|
||||
*/
|
||||
void
|
||||
umtxrwlockflags(intmax_t arg)
|
||||
{
|
||||
int or = 0;
|
||||
if (arg == 0) {
|
||||
printf("0");
|
||||
return;
|
||||
}
|
||||
printf("%#jx<", (uintmax_t)arg);
|
||||
_EOF_
|
||||
egrep "^#[[:space:]]*define[[:space:]]+URWLOCK_PREFER_READER[[:space:]]+0x[0-9]+[[:space:]]*" \
|
||||
$include_dir/sys/umtx.h | \
|
||||
awk '{ for (i = 1; i <= NF; i++) \
|
||||
if ($i ~ /define/) \
|
||||
break; \
|
||||
++i; \
|
||||
printf "\tif (!((arg > 0) ^ ((%s) > 0)))\n\t\tif_print_or(arg, %s, or);\n", $i, $i }'
|
||||
cat <<_EOF_
|
||||
printf(">");
|
||||
if (or == 0)
|
||||
printf("<invalid>%jd", arg);
|
||||
}
|
||||
_EOF_
|
||||
egrep '#define[[:space:]]+CAP_[A-Z_]+[[:space:]]+CAPRIGHT\([0-9],[[:space:]]+0x[0-9]{16}ULL\)' \
|
||||
$include_dir/sys/capsicum.h | \
|
||||
|
@ -5,6 +5,7 @@
|
||||
* Hex -- values that should be printed in hex (addresses)
|
||||
* Octal -- Same as above, but octal
|
||||
* Int -- normal integer values (file descriptors, for example)
|
||||
* LongHex -- long value that should be printed in hex
|
||||
* Name -- pointer to a NULL-terminated string.
|
||||
* BinString -- pointer to an array of chars, printed via strvisx().
|
||||
* Ptr -- pointer to some unspecified structure. Just print as hex for now.
|
||||
@ -34,13 +35,13 @@
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
enum Argtype { None = 1, Hex, Octal, Int, Name, Ptr, Stat, Ioctl, Quad,
|
||||
enum Argtype { None = 1, Hex, Octal, Int, LongHex, Name, Ptr, Stat, Ioctl, Quad,
|
||||
Signal, Sockaddr, StringArray, Timespec, Timeval, Itimerval, Pollfd,
|
||||
Fd_set, Sigaction, Fcntl, Mprot, Mmapflags, Whence, Readlinkres,
|
||||
Sigset, Sigprocmask, Kevent, Sockdomain, Socktype, Open,
|
||||
Fcntlflag, Rusage, BinString, Shutdown, Resource, Rlimit, Timeval2,
|
||||
Pathconf, Rforkflags, ExitStatus, Waitoptions, Idtype, Procctl,
|
||||
LinuxSockArgs };
|
||||
LinuxSockArgs, Umtxop };
|
||||
|
||||
#define ARG_MASK 0xff
|
||||
#define OUT 0x100
|
||||
|
@ -279,6 +279,9 @@ static struct syscall syscalls[] = {
|
||||
{ Waitoptions, 3 }, { Rusage | OUT, 4 }, { Ptr, 5 } } },
|
||||
{ .name = "procctl", .ret_type = 1, .nargs = 4,
|
||||
.args = { { Idtype, 0 }, { Int, 1 }, { Procctl, 2 }, { Ptr, 3 } } },
|
||||
{ .name = "_umtx_op", .ret_type = 1, .nargs = 5,
|
||||
.args = { { Ptr, 0 }, { Umtxop, 1 }, { LongHex, 2 }, { Ptr, 3 },
|
||||
{ Ptr, 4 } } },
|
||||
{ .name = 0 },
|
||||
};
|
||||
|
||||
@ -412,6 +415,18 @@ static struct xlat procctl_arg[] = {
|
||||
X(PROC_SPROTECT) XEND
|
||||
};
|
||||
|
||||
static struct xlat umtx_ops[] = {
|
||||
X(UMTX_OP_RESERVED0) X(UMTX_OP_RESERVED1) X(UMTX_OP_WAIT)
|
||||
X(UMTX_OP_WAKE) X(UMTX_OP_MUTEX_TRYLOCK) X(UMTX_OP_MUTEX_LOCK)
|
||||
X(UMTX_OP_MUTEX_UNLOCK) X(UMTX_OP_SET_CEILING) X(UMTX_OP_CV_WAIT)
|
||||
X(UMTX_OP_CV_SIGNAL) X(UMTX_OP_CV_BROADCAST) X(UMTX_OP_WAIT_UINT)
|
||||
X(UMTX_OP_RW_RDLOCK) X(UMTX_OP_RW_WRLOCK) X(UMTX_OP_RW_UNLOCK)
|
||||
X(UMTX_OP_WAIT_UINT_PRIVATE) X(UMTX_OP_WAKE_PRIVATE)
|
||||
X(UMTX_OP_MUTEX_WAIT) X(UMTX_OP_MUTEX_WAKE) X(UMTX_OP_SEM_WAIT)
|
||||
X(UMTX_OP_SEM_WAKE) X(UMTX_OP_NWAKE_PRIVATE) X(UMTX_OP_MUTEX_WAKE2)
|
||||
XEND
|
||||
};
|
||||
|
||||
#undef X
|
||||
#undef XEND
|
||||
|
||||
@ -608,6 +623,9 @@ print_arg(struct syscall_args *sc, unsigned long *args, long retval,
|
||||
case Int:
|
||||
asprintf(&tmp, "%d", (int)args[sc->offset]);
|
||||
break;
|
||||
case LongHex:
|
||||
asprintf(&tmp, "0x%lx", args[sc->offset]);
|
||||
break;
|
||||
case Name: {
|
||||
/* NULL-terminated string. */
|
||||
char *tmp2;
|
||||
@ -1275,6 +1293,9 @@ print_arg(struct syscall_args *sc, unsigned long *args, long retval,
|
||||
case Procctl:
|
||||
tmp = strdup(xlookup(procctl_arg, args[sc->offset]));
|
||||
break;
|
||||
case Umtxop:
|
||||
tmp = strdup(xlookup(umtx_ops, args[sc->offset]));
|
||||
break;
|
||||
default:
|
||||
errx(1, "Invalid argument type %d\n", sc->type & ARG_MASK);
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user