diff options
Diffstat (limited to 'tapset/i386/syscalls.stp')
| -rw-r--r-- | tapset/i386/syscalls.stp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tapset/i386/syscalls.stp b/tapset/i386/syscalls.stp index 821d77d4..2d1a282b 100644 --- a/tapset/i386/syscalls.stp +++ b/tapset/i386/syscalls.stp @@ -68,11 +68,13 @@ probe syscall.mmap2 = kernel.function("sys_mmap2") ? length = $len prot = $prot flags = $flags - fd = $fd + # Although the kernel gets an unsigned long fd, on the + # user-side it is a signed int. Fix this. + fd = __int32($fd) pgoffset = $pgoff argstr = sprintf("%p, %d, %s, %s, %d, %d", $addr, $len, _mprotect_prot_str($prot), _mmap_flags($flags), - $fd, $pgoff) + __int32($fd), $pgoff) } probe syscall.mmap2.return = kernel.function("sys_mmap2").return ? { |