Author: jhb
Date: Thu Jun  8 08:07:51 2017
New Revision: 319688
URL: https://svnweb.freebsd.org/changeset/base/319688

Log:
  Decode flags passed to mount(), nmount(), and unmount().

Modified:
  head/usr.bin/truss/syscall.h
  head/usr.bin/truss/syscalls.c

Modified: head/usr.bin/truss/syscall.h
==============================================================================
--- head/usr.bin/truss/syscall.h        Thu Jun  8 06:37:11 2017        
(r319687)
+++ head/usr.bin/truss/syscall.h        Thu Jun  8 08:07:51 2017        
(r319688)
@@ -49,7 +49,7 @@ enum Argtype { None = 1, Hex, Octal, Int, UInt, LongHe
        CapFcntlRights, Fadvice, FileFlags, Flockop, Getfsstatmode, Kldsymcmd,
        Kldunloadflags, Sizet, Madvice, Socklent, Sockprotocol, Sockoptlevel,
        Sockoptname, Msgflags, CapRights, PUInt, PQuadHex, Acltype,
-       Extattrnamespace, Minherit, Mlockall,
+       Extattrnamespace, Minherit, Mlockall, Mountflags,
 
        CloudABIAdvice, CloudABIClockID, ClouduABIFDSFlags,
        CloudABIFDStat, CloudABIFileStat, CloudABIFileType,

Modified: head/usr.bin/truss/syscalls.c
==============================================================================
--- head/usr.bin/truss/syscalls.c       Thu Jun  8 06:37:11 2017        
(r319687)
+++ head/usr.bin/truss/syscalls.c       Thu Jun  8 08:07:51 2017        
(r319688)
@@ -323,7 +323,7 @@ static struct syscall decoded_syscalls[] = {
        { .name = "modfind", .ret_type = 1, .nargs = 1,
          .args = { { Name | IN, 0 } } },
        { .name = "mount", .ret_type = 1, .nargs = 4,
-         .args = { { Name, 0 }, { Name, 1 }, { Int, 2 }, { Ptr, 3 } } },
+         .args = { { Name, 0 }, { Name, 1 }, { Mountflags, 2 }, { Ptr, 3 } } },
        { .name = "mprotect", .ret_type = 1, .nargs = 3,
          .args = { { Ptr, 0 }, { Sizet, 1 }, { Mprot, 2 } } },
        { .name = "munlock", .ret_type = 1, .nargs = 2,
@@ -332,6 +332,8 @@ static struct syscall decoded_syscalls[] = {
          .args = { { Ptr, 0 }, { Sizet, 1 } } },
        { .name = "nanosleep", .ret_type = 1, .nargs = 1,
          .args = { { Timespec, 0 } } },
+       { .name = "nmount", .ret_type = 1, .nargs = 3,
+         .args = { { Ptr, 0 }, { UInt, 1 }, { Mountflags, 2 } } },
        { .name = "open", .ret_type = 1, .nargs = 3,
          .args = { { Name | IN, 0 }, { Open, 1 }, { Octal, 2 } } },
        { .name = "openat", .ret_type = 1, .nargs = 4,
@@ -452,7 +454,7 @@ static struct syscall decoded_syscalls[] = {
        { .name = "unlinkat", .ret_type = 1, .nargs = 3,
          .args = { { Atfd, 0 }, { Name, 1 }, { Atflags, 2 } } },
        { .name = "unmount", .ret_type = 1, .nargs = 2,
-         .args = { { Name, 0 }, { Int, 1 } } },
+         .args = { { Name, 0 }, { Mountflags, 1 } } },
        { .name = "utimensat", .ret_type = 1, .nargs = 4,
          .args = { { Atfd, 0 }, { Name | IN, 1 }, { Timespec2 | IN, 2 },
                    { Atflags, 3 } } },
@@ -2112,6 +2114,9 @@ print_arg(struct syscall_args *sc, unsigned long *args
                break;
        case Mlockall:
                print_mask_arg(sysdecode_mlockall_flags, fp, args[sc->offset]);
+               break;
+       case Mountflags:
+               print_mask_arg(sysdecode_mount_flags, fp, args[sc->offset]);
                break;
 
        case CloudABIAdvice:
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