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-rw-r--r--tapset/aux_syscalls.stp55
1 files changed, 55 insertions, 0 deletions
diff --git a/tapset/aux_syscalls.stp b/tapset/aux_syscalls.stp
index a59050e0..4450ff70 100644
--- a/tapset/aux_syscalls.stp
+++ b/tapset/aux_syscalls.stp
@@ -1638,3 +1638,58 @@ function _shmat_flags_str(f) {
if(f & 0100000) bs="SHM_EXEC|".bs
return substr(bs,0,strlen(bs)-1)
}
+
+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);
+ }
+%}