PAL.C.T MINI SHELL
# IA64 system calls
# In kernels < 2.6.33, mmap()/mmap2() was handled by arch-specific
# code. In kernels >= 2.6.33, the arch-specific code just calls
# generic sys_mmap_pgoff().
%( kernel_v < "2.6.33" %?
# mmap
# sys_mmap (unsigned long addr, unsigned long len, int prot, int flags, int fd, long off)
#
probe syscall.mmap = kernel.function("sys_mmap") ?
{
name = "mmap"
start = $addr
len = $len
prot = $prot
flags = $flags
# Although the kernel gets an unsigned long fd, on the
# user-side it is a signed int. Fix this.
fd = __int32($fd)
offset = $off
argstr = sprintf("%p, %u, %s, %s, %d, %d", $addr, $len,
_mprotect_prot_str($prot), _mmap_flags($flags),
__int32($fd), $off)
}
probe syscall.mmap.return = kernel.function("sys_mmap").return ?
{
name = "mmap"
retstr = return_str(2, $return)
}
# mmap2
# sys_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, long pgoff)
probe syscall.mmap2 = kernel.function("sys_mmap2") ?
{
name = "mmap2"
start = $addr
length = $len
prot = $prot
flags = $flags
fd = $fd
pgoffset = $pgoff
argstr = sprintf("%p, %u, %s, %s, %d, %d", $addr,
$len, _mprotect_prot_str($prot), _mmap_flags($flags),
$fd, $pgoff)
}
probe syscall.mmap2.return = kernel.function("sys_mmap2").return ?
{
name = "mmap2"
retstr = return_str(2, $return)
}
%)
%( CONFIG_GENERIC_SIGALTSTACK == "n" || kernel_v < "3.8" %?
# sigaltstack _______________________________________________
# asmlinkage long
# sys_sigaltstack (const stack_t __user *uss, stack_t __user *uoss, long arg2,
# long arg3, long arg4, long arg5, long arg6, long arg7,
# struct pt_regs regs)
#
probe syscall.sigaltstack = kernel.function("sys_sigaltstack")
{
name = "sigaltstack";
%(systemtap_v <= "1.4" %?
ss_uaddr = $uss
oss_uaddr = $uoss
%)
uss_uaddr = $uss
uoss_uaddr = $uoss
%(systemtap_v < "2.3" %?
regs = &$regs
%)
argstr = sprintf("%s, %p", _stp_sigaltstack_u($uss), $uoss)
}
probe syscall.sigaltstack.return = kernel.function("sys_sigaltstack").return
{
name = "sigaltstack";
retstr = return_str(1, $return)
}
%)
# sysctl _____________________________________________________
#
# long sys32_sysctl (struct sysctl32 __user *args)
#
probe syscall.sysctl32 = kernel.function("sys32_sysctl") ?
{
name = "sysctl"
argstr = sprintf("%p", $args)
}
probe syscall.sysctl32.return = kernel.function("sys32_sysctl").return ?
{
name = "sysctl"
retstr = return_str(1, $return)
}
%( kernel_v < "3.7" %?
# execve _____________________________________________________
#
# In kernels < 3.7, sys_execve() was in arch-specific code (and had
# varying arguments). But, it was just a wrapper around generic
# do_execve(). But, the wrapper could error out before calling
# do_execve(). So, we'll have to handle it in arch-specific tapset
# code to catch all calls.
#
# long sys_execve (char __user *filename, char __user * __user *argv,
# char __user * __user *envp, struct pt_regs *regs)
probe syscall.execve = kernel.function("sys_execve").call ?
{
name = "execve"
filename = user_string_quoted($filename)
args = __get_argv($argv, 0)
env_str = __count_envp($envp)
argstr = sprintf("%s, %s, %s", filename, args, env_str)
}
probe syscall.execve.return = kernel.function("sys_execve").return ?
{
name = "execve"
retstr = return_str(1, $return)
}
%)
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