diff options
Diffstat (limited to 'tapset/powerpc/nd_syscalls.stp')
| -rw-r--r-- | tapset/powerpc/nd_syscalls.stp | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/tapset/powerpc/nd_syscalls.stp b/tapset/powerpc/nd_syscalls.stp index 46267507..0723c393 100644 --- a/tapset/powerpc/nd_syscalls.stp +++ b/tapset/powerpc/nd_syscalls.stp @@ -637,19 +637,23 @@ probe nd_syscall.mmap = kprobe.function("sys_mmap") ? // len = $len // prot = $prot // flags = $flags - // fd = $fd + // fd = __int32($fd) // offset = $offset // argstr = sprintf("%p, %d, %s, %s, %d, %d", $addr, $len, - // _mprotect_prot_str($prot), _mmap_flags($flags), $fd, $offset) + // _mprotect_prot_str($prot), _mmap_flags($flags), + // __int32($fd), $offset) asmlinkage() start = ulong_arg(1) len = ulong_arg(2) prot = ulong_arg(3) flags = ulong_arg(4) - fd = ulong_arg(5) + # Although the kernel gets an unsigned long fd, on the + # user-side it is a signed int. Fix this. + fd = int_arg(5) offset = ulong_arg(6) argstr = sprintf("%p, %d, %s, %s, %d, %d", start, len, - _mprotect_prot_str(prot), _mmap_flags(flags), fd, offset) + _mprotect_prot_str(prot), _mmap_flags(flags), + fd, offset) } probe nd_syscall.mmap.return = kprobe.function("sys_mmap").return ? { @@ -673,7 +677,7 @@ probe nd_syscall.mmap2 = kprobe.function("sys_mmap2") ?, // length = $len // prot = $prot // flags = $flags - // fd = $fd + // fd = __int32($fd) // pgoffset = $pgoff // argstr = sprintf("%p, %d, %s, %s, %d, %d", $addr, // $len, _mprotect_prot_str($prot), _mmap_flags($flags), @@ -683,7 +687,9 @@ probe nd_syscall.mmap2 = kprobe.function("sys_mmap2") ?, length = ulong_arg(2) prot = ulong_arg(3) flags = ulong_arg(4) - fd = ulong_arg(5) + # Although the kernel gets an unsigned long fd, on the + # user-side it is a signed int. Fix this. + fd = int_arg(5) pgoffset = ulong_arg(6) argstr = sprintf("%p, %d, %s, %s, %d, %d", start, length, _mprotect_prot_str(prot), _mmap_flags(flags), |