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# 32-bit x86-specific system calls
# These are typically defined in arch/i386
#
# get_thread_area ____________________________________________
/*
* asmlinkage int
* sys_get_thread_area(struct user_desc __user *u_info)
*/
probe syscall.get_thread_area = kernel.function("sys_get_thread_area") {
name = "get_thread_area"
u_info_uaddr = $u_info
argstr = sprintf("%p", u_info_uaddr)
}
probe syscall.get_thread_area.return =
kernel.function("sys_get_thread_area").return {
name = "get_thread_area"
retstr = returnstr(1)
}
# iopl _______________________________________________________
# long sys_iopl(unsigned long unused)
# NOTE. This function is only in i386 and x86_64 and its args vary
# between those two archs.
#
probe syscall.iopl = kernel.function("sys_iopl") {
name = "iopl"
argstr = ""
}
probe syscall.iopl.return = kernel.function("sys_iopl").return {
name = "iopl"
retstr = returnstr(1)
}
# ipc ________________________________________________________
# int sys_ipc (uint call, int first, int second, int third, void __user *ptr, long fifth)
#
probe syscall.ipc = kernel.function("sys_ipc") ? {
name = "ipc"
call = $call
first = $first
second = $second
third = $third
ptr_uaddr = $ptr
fifth = $fifth
argstr = sprintf("%d, %d, %d, %d, %p, %d", $call, $first,
$second, $third, $ptr, $fifth)
}
probe syscall.ipc.return = kernel.function("sys_ipc").return ? {
name = "ipc"
retstr = returnstr(1)
}
# mmap2 ____________________________________________
# sys_mmap2(unsigned long addr, unsigned long len,
# unsigned long prot, unsigned long flags,
# unsigned long fd, unsigned 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, %d, %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 = returnstr(2)
}
# set_thread_area ____________________________________________
/*
* asmlinkage int
* sys_set_thread_area(struct user_desc __user *u_info)
*/
probe syscall.set_thread_area =
kernel.function("sys_set_thread_area") {
name = "set_thread_area"
u_info_uaddr = $u_info
argstr = sprintf("%p", u_info_uaddr)
}
probe syscall.set_thread_area.return =
kernel.function("sys_set_thread_area").return {
name = "set_thread_area"
retstr = returnstr(1)
}
# set_zone_reclaim ___________________________________________
/*
* asmlinkage long
* sys_set_zone_reclaim(unsigned int node,
* unsigned int zone,
* unsigned int state)
*/
probe syscall.set_zone_reclaim =
kernel.function("sys_set_zone_reclaim") ? {
name = "set_zone_reclaim"
node = $node
zone = $zone
state = $state
argstr = sprintf("%d, %d, %d", $node, $zone, $state)
}
probe syscall.set_zone_reclaim.return =
kernel.function("sys_set_zone_reclaim").return ? {
name = "set_zone_reclaim"
retstr = returnstr(1)
}
# sigaltstack ________________________________________________
# int sys_sigaltstack(unsigned long ebx)
#
# NOTE: args vary between archs.
#
probe syscall.sigaltstack = kernel.function("sys_sigaltstack") {
name = "sigaltstack"
ussp = %( kernel_vr < "2.6.25" %? $ebx %: %( kernel_vr < "2.6.29" %? $bx %: $regs->bx %) %)
argstr = sprintf("%p", ussp)
}
probe syscall.sigaltstack.return = kernel.function("sys_sigaltstack").return {
name = "sigaltstack"
retstr = returnstr(1)
}
# vm86 _______________________________________________________
#
# int sys_vm86(struct pt_regs regs)
#
probe syscall.vm86 = kernel.function("sys_vm86") ? {
name = "vm86"
/*
* unsupported type identifier '$regs'
* regs = $regs
*/
argstr = ""
}
probe syscall.vm86.return = kernel.function("sys_vm86").return ? {
name = "vm86"
retstr = returnstr(1)
}
# vm86old ____________________________________________________
#
# int sys_vm86old(struct pt_regs regs)
#
probe syscall.vm86old = kernel.function("sys_vm86old") ? {
name = "vm86old"
/*
* unsupported type identifier '$regs'
* regs = $regs
*/
argstr = ""
}
probe syscall.vm86old.return = kernel.function("sys_vm86old").return ? {
name = "vm86old"
retstr = returnstr(1)
}
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