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|
%(arch == "s390x" %?
# mmap - s390x version of the syscall.mmap probes
#
# long old_mmap(struct mmap_arg_struct __user *arg)
# long old32_mmap(struct mmap_arg_struct_emu31 __user *arg)
#
probe syscall.mmap = kernel.function("old_mmap"),
kernel.function("old32_mmap")
{
name = "mmap"
if ( probefunc() == "old_mmap" ){
argstr = get_mmap_args($arg);
}else{
argstr = get_32mmap_args($arg);
}
}
probe syscall.mmap.return = kernel.function("old_mmap").return,
kernel.function("old32_mmap").return
{
name = "mmap"
retstr = returnstr(2)
}
# mmap2 - s390x version of the syscall.mmap2 probes
#
# long sys_mmap2(struct mmap_arg_struct __user *arg)
# long sys32_mmap2(struct mmap_arg_struct_emu31 __user *arg)
#
probe syscall.mmap2 = kernel.function("sys_mmap2"),
kernel.function("sys32_mmap2")
{
name = "mmap2"
if ( probefunc() == "sys_mmap2" ){
argstr = get_mmap_args($arg);
}else{
argstr = get_32mmap_args($arg);
}
}
probe syscall.mmap2.return = kernel.function("sys_mmap2").return,
kernel.function("sys32_mmap2").return
{
name = "mmap2"
retstr = returnstr(2)
}
function get_mmap_args:string (args:long)
%{
struct mmap_arg_struct {
unsigned long addr;
unsigned long len;
unsigned long prot;
unsigned long flags;
unsigned long fd;
unsigned long offset;
}a;
char proto[60];
char flags[256];
if(_stp_copy_from_user((char *)&a,
(char *)THIS->args, sizeof(a))== 0){
/* _mprotect_prot_str */
proto[0] = '\0';
if(a.prot){
if(a.prot & 1) strcat (proto, "PROT_READ|");
if(a.prot & 2) strcat (proto, "PROT_WRITE|");
if(a.prot & 4) strcat (proto, "PROT_EXEC|");
} else {
strcat (proto, "PROT_NONE");
}
if (proto[0] != '\0') proto[strlen(proto)-1] = '\0';
/* _mmap_flags */
flags[0]='\0';
if (a.flags & 1) strcat (flags, "MAP_SHARED|");
if (a.flags & 2) strcat (flags, "MAP_PRIVATE|");
if (a.flags & 0x10) strcat (flags, "MAP_FIXED|");
if (a.flags & 0x20) strcat (flags, "MAP_ANONYMOUS|");
if (a.flags & 0x100) strcat (flags, "MAP_GROWSDOWN|");
if (a.flags & 0x800) strcat (flags, "MAP_DENYWRITE|");
if (a.flags & 0x1000) strcat (flags, "MAP_EXECUTABLE|");
if (a.flags & 0x2000) strcat (flags, "MAP_LOCKED|");
if (a.flags & 0x4000) strcat (flags, "MAP_NORESERVE|");
if (a.flags & 0x8000) strcat (flags, "MAP_POPULATE|");
if (a.flags & 0x10000) strcat (flags, "MAP_NONBLOCK|");
if (flags[0] != '\0') flags[strlen(flags)-1] = '\0';
sprintf(THIS->__retvalue,"0x%lx, %ld, %s, %s, %ld, %ld",
a.addr,
a.len,
proto,
flags,
a.fd,
a.offset);
}else{
strlcpy (THIS->__retvalue, "UNKNOWN", MAXSTRINGLEN);
}
%}
/* compat */
function get_32mmap_args:string (args:long)
%{
struct mmap_arg_struct_emu31 {
u32 addr;
u32 len;
u32 prot;
u32 flags;
u32 fd;
u32 offset;
}a;
char proto[60];
char flags[256];
if(_stp_copy_from_user((char *)&a,
(char *)THIS->args, sizeof(a))== 0){
/* _mprotect_prot_str */
proto[0] = '\0';
if(a.prot){
if(a.prot & 1) strcat (proto, "PROT_READ|");
if(a.prot & 2) strcat (proto, "PROT_WRITE|");
if(a.prot & 4) strcat (proto, "PROT_EXEC|");
} else {
strcat (proto, "PROT_NONE");
}
if (proto[0] != '\0') proto[strlen(proto)-1] = '\0';
/* _mmap_flags */
flags[0]='\0';
if (a.flags & 1) strcat (flags, "MAP_SHARED|");
if (a.flags & 2) strcat (flags, "MAP_PRIVATE|");
if (a.flags & 0x10) strcat (flags, "MAP_FIXED|");
if (a.flags & 0x20) strcat (flags, "MAP_ANONYMOUS|");
if (a.flags & 0x100) strcat (flags, "MAP_GROWSDOWN|");
if (a.flags & 0x800) strcat (flags, "MAP_DENYWRITE|");
if (a.flags & 0x1000) strcat (flags, "MAP_EXECUTABLE|");
if (a.flags & 0x2000) strcat (flags, "MAP_LOCKED|");
if (a.flags & 0x4000) strcat (flags, "MAP_NORESERVE|");
if (a.flags & 0x8000) strcat (flags, "MAP_POPULATE|");
if (a.flags & 0x10000) strcat (flags, "MAP_NONBLOCK|");
if (flags[0] != '\0') flags[strlen(flags)-1] = '\0';
sprintf(THIS->__retvalue,"0x%x, %d, %s, %s, %d, %d",
a.addr,
a.len,
proto,
flags,
a.fd,
a.offset);
}else{
strlcpy (THIS->__retvalue, "UNKNOWN", MAXSTRINGLEN);
}
%}
%)
|
