Author: jhb Date: Mon Oct 13 16:37:06 2014 New Revision: 273053 URL: https://svnweb.freebsd.org/changeset/base/273053
Log: Decode the arguments passed to _umtx_op(). In particular, decode the opcode. MFC after: 1 week Sponsored by: Norse Modified: head/usr.bin/kdump/kdump.c head/usr.bin/kdump/mksubr head/usr.bin/truss/syscall.h head/usr.bin/truss/syscalls.c Modified: head/usr.bin/kdump/kdump.c ============================================================================== --- head/usr.bin/kdump/kdump.c Mon Oct 13 16:33:08 2014 (r273052) +++ head/usr.bin/kdump/kdump.c Mon Oct 13 16:37:06 2014 (r273053) @@ -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_in 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) { Modified: head/usr.bin/kdump/mksubr ============================================================================== --- head/usr.bin/kdump/mksubr Mon Oct 13 16:33:08 2014 (r273052) +++ head/usr.bin/kdump/mksubr Mon Oct 13 16:37:06 2014 (r273053) @@ -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" " 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 | \ Modified: head/usr.bin/truss/syscall.h ============================================================================== --- head/usr.bin/truss/syscall.h Mon Oct 13 16:33:08 2014 (r273052) +++ head/usr.bin/truss/syscall.h Mon Oct 13 16:37:06 2014 (r273053) @@ -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 Modified: head/usr.bin/truss/syscalls.c ============================================================================== --- head/usr.bin/truss/syscalls.c Mon Oct 13 16:33:08 2014 (r273052) +++ head/usr.bin/truss/syscalls.c Mon Oct 13 16:37:06 2014 (r273053) @@ -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, unsig 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, unsig 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); } _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"