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Name	Size	Permission
aux_syscalls.stp	5.41 KB	-rw-r--r--
sysc_compat_fadvise64.stp	6.43 KB	-rw-r--r--
sysc_compat_fallocate.stp	3.14 KB	-rw-r--r--
sysc_compat_ftruncate64.stp	1.78 KB	-rw-r--r--
sysc_compat_lookup_dcookie.stp	3.02 KB	-rw-r--r--
sysc_compat_readahead.stp	1.87 KB	-rw-r--r--
sysc_compat_truncate64.stp	1.83 KB	-rw-r--r--
sysc_execve.stp	4.66 KB	-rw-r--r--
sysc_getresgid16.stp	1.78 KB	-rw-r--r--
sysc_getresuid16.stp	1.66 KB	-rw-r--r--
sysc_ipc.stp	1.39 KB	-rw-r--r--
sysc_mmap.stp	3.22 KB	-rw-r--r--
sysc_mmap2.stp	3.06 KB	-rw-r--r--
sysc_sigaltstack.stp	2.97 KB	-rw-r--r--
sysc_sysctl32.stp	1.12 KB	-rw-r--r--
syscall_num.stp	51.66 KB	-rw-r--r--

Code Editor : sysc_mmap.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" %?
# mmap _________________________________________________
# long old_mmap(struct mmap_arg_struct __user *arg)
# long old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
#

@define _SYSCALL_MMAP_NAME
%(
	name = "mmap"
%)

@define _SYSCALL_MMAP_ARGSTR
%(
	argstr = sprintf("%p, %u, %s, %s, %d, %d", start, len,
	                 prot_str, flags_str, fd, offset)
%)

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

# dw_mmap _____________________________________________________

probe dw_syscall.mmap = __syscall.mmap ?, __syscall.mmap32 ?
{
	@_SYSCALL_MMAP_NAME
	prot_str = _mprotect_prot_str(prot)
	flags_str = _mmap_flags(flags)
	@_SYSCALL_MMAP_ARGSTR
}
probe __syscall.mmap = kernel.function("old_mmap") ?,
		       kernel.function("SyS_s390_old_mmap") ?
{
	start = user_long(&@cast($arg, "mmap_arg_struct")->addr)
	len = user_ulong(&@cast($arg, "mmap_arg_struct")->len)
	prot = user_long(&@cast($arg, "mmap_arg_struct")->prot)
	flags = user_long(&@cast($arg, "mmap_arg_struct")->flags)
	fd = user_long(&@cast($arg, "mmap_arg_struct")->fd)
	offset = user_long(&@cast($arg, "mmap_arg_struct")->offset)
}
probe __syscall.mmap32 = kernel.function("old32_mmap")
{
	start = user_int(&@cast($arg, "mmap_arg_struct_emu31")->addr)
	len = user_uint32(&@cast($arg, "mmap_arg_struct_emu31")->len)
	prot = user_int(&@cast($arg, "mmap_arg_struct_emu31")->prot)
	flags = user_int(&@cast($arg, "mmap_arg_struct_emu31")->flags)
	fd = user_int(&@cast($arg, "mmap_arg_struct_emu31")->fd)
	offset = user_int(&@cast($arg, "mmap_arg_struct_emu31")->offset)
}

probe dw_syscall.mmap.return = kernel.function("old_mmap").return ?,
                            kernel.function("old32_mmap").return ?,
                            kernel.function("SyS_s390_old_mmap").return ?
{
        @_SYSCALL_MMAP_NAME
        @SYSC_RETVALSTR2($return)
}

# nd_mmap _____________________________________________________

probe nd_syscall.mmap = __nd_syscall.mmap ?, __nd_syscall.mmap32 ?
{
	@_SYSCALL_MMAP_NAME
	prot_str = _mprotect_prot_str(prot)
	flags_str = _mmap_flags(flags)
	@_SYSCALL_MMAP_ARGSTR
}
probe __nd_syscall.mmap = kprobe.function("old_mmap") ?,
			  kprobe.function("SyS_s390_old_mmap") ?
{
	asmlinkage()
	__args = &@ulong_cast(pointer_arg(1))
	start = user_ulong(&(__args)[0])
	len = user_ulong(&(__args)[1])
	prot = user_ulong(&(__args)[2])
	flags = user_ulong(&(__args)[3])
	fd = user_long(&(__args)[4])
	offset = user_ulong(&(__args)[5])
}
probe __nd_syscall.mmap32 = kprobe.function("old32_mmap")
{
	asmlinkage()
	__args = &@uint_cast(pointer_arg(1))
	start = user_uint32(&(__args)[0])
	len = user_uint32(&(__args)[1])
	prot = user_uint32(&(__args)[2])
	flags = user_uint32(&(__args)[3])
	fd = user_int(&(__args)[4])
	offset = user_uint32(&(__args)[5])
}
probe nd_syscall.mmap.return = kprobe.function("old_mmap").return ?,
                               kprobe.function("old32_mmap").return ?,
                               kprobe.function("SyS_s390_old_mmap").return ?
{
	@_SYSCALL_MMAP_NAME
	@SYSC_RETVALSTR2(returnval())
}
%)

${this.title}

Code Editor : sysc_mmap.stp