관리-도구

편집 파일: sysc_mmap2.stp

# 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" %?
# mmap2
# sys_mmap2 (unsigned long addr, unsigned long len, int prot, int flags, int fd, long pgoff)

@define _SYSCALL_MMAP2_NAME
%(
	name = "mmap2"
%)

@define _SYSCALL_MMAP2_ARGSTR
%(
	argstr = sprintf("%p, %u, %s, %s, %d, %d", start, length,
	                 prot_str, flags_str, fd, pgoffset)
%)

probe syscall.mmap2 = dw_syscall.mmap2 !, nd_syscall.mmap2 ? {}
probe syscall.mmap2.return = dw_syscall.mmap2.return !, nd_syscall.mmap2.return ? {}

# dw_mmap2 _____________________________________________________

probe dw_syscall.mmap2 = kernel.function("sys_mmap2") ?
{
        @_SYSCALL_MMAP2_NAME
        start = $addr
        length = $len
        prot = $prot
	prot_str = _mprotect_prot_str(prot)
        flags = $flags
	flags_str = _mmap_flags(flags)
        fd = $fd
        pgoffset = $pgoff
        @_SYSCALL_MMAP2_ARGSTR
}
probe dw_syscall.mmap2.return = kernel.function("sys_mmap2").return ?
{
        @_SYSCALL_MMAP2_NAME
        @SYSC_RETVALSTR2($return)
}

# nd_mmap2 _____________________________________________________

probe nd_syscall.mmap2 = kprobe.function("sys_mmap2") ?
{
	@_SYSCALL_MMAP2_NAME
	asmlinkage()
	start = ulong_arg(1)
	length = ulong_arg(2)
	prot = int_arg(3)
	prot_str = _mprotect_prot_str(prot)
	flags = int_arg(4)
	flags_str = _mmap_flags(flags)
	fd = int_arg(5)
	pgoffset = long_arg(6)
	@_SYSCALL_MMAP2_ARGSTR
}
probe nd_syscall.mmap2.return = kprobe.function("sys_mmap2").return ?
{
	@_SYSCALL_MMAP2_NAME
	@SYSC_RETVALSTR2(returnval())
}
%)