1#@!#!123s

: / usr / share / systemtap / tapset / linux / powerpc /
Filename : sysc_sys32_getdents.stp
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# sys32_getdents ________________________________________
#
# asmlinkage long sys32_getdents(unsigned int fd,
#			struct linux_dirent32 __user *dirent,
#			unsigned int count)
#

@define _SYSCALL_SYS32_GETDENTS_NAME
%(
	name = "sys32_getdents"
%)

@define _SYSCALL_SYS32_GETDENTS_ARGSTR
%(
	argstr = sprintf("%d, %p, %d", fd, dirp_uaddr, count)
%)

probe syscall.sys32_getdents = dw_syscall.sys32_getdents !,
                               nd_syscall.sys32_getdents ? {}
probe syscall.sys32_getdents.return = dw_syscall.sys32_getdents.return !,
                                      nd_syscall.sys32_getdents.return ? {}

# dw_sys32_getdents _____________________________________________________

probe dw_syscall.sys32_getdents = kernel.function("sys32_getdents") ?
{
	@_SYSCALL_SYS32_GETDENTS_NAME
	fd = $fd
	dirp_uaddr = $dirent
	count = $count
	@_SYSCALL_SYS32_GETDENTS_ARGSTR
}
probe dw_syscall.sys32_getdents.return = kernel.function("sys32_getdents").return ?
{
	@_SYSCALL_SYS32_GETDENTS_NAME
	@SYSC_RETVALSTR($return)
}

# nd_sys32_getdents _____________________________________________________

probe nd_syscall.sys32_getdents = kprobe.function("sys32_getdents") ?
{
	@_SYSCALL_SYS32_GETDENTS_NAME
	asmlinkage()
	fd = uint_arg(1)
	dirp_uaddr = pointer_arg(2)
	count = uint_arg(3)
	@_SYSCALL_SYS32_GETDENTS_ARGSTR
}
probe nd_syscall.sys32_getdents.return = kprobe.function("sys32_getdents").return ?
{
	@_SYSCALL_SYS32_GETDENTS_NAME
	@SYSC_RETVALSTR(returnval())
}