(gdb) p (char*)0x7fffffffe9c8
$16 = 0x7fffffffe9c8 "\363\353\377\377\377\177"
It doesn't look like ascii nor multibyte,what's that?
These are octal character escapes. They are usually used to insert bytes into a string that don't have a meaning as text or need to have a certain binary value. \377
for instance is the hexadecimal value ff
or decimal 255
which would be this ÿ
in ASCII but most likely has a very different meaning in this context.
It's not text. It looks like the address you're examining contains another pointer to something on the stack. Try it as (char **)0x7fffffffe9c8
, or some other double pointer type.
Edit: To elaborate, OP is examining non-text data in a debugger and asking the encoding. The correct answer is simply that it's not text. It's an integer 0x7fffffffebf3 and it's almost certainly a pointer to a string (since it's not aligned and points somewhere on the stack), meaning that the original pointer was probably of type char **
not char *
.
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