Compatibility problems with gdb.Value about libheap HOT 7 CLOSED

You could just cast gdb.Value to int, just replace m.address to int(m.address).
There are several same problems in the whole script, not working on gdb compiled with python 3.

from libheap.

I committed a fix for the first one in 5a3b70f

I'm not sure where the second one is occurring. Do you maybe have an old git checkout? As I don't see the line "{:#x}".format(self.val['top']) anywhere in current code. Thanks for the report.

from libheap.

@BrieflyX Yes, i just replace all gdb.Value with int. i just found all gdb.Value object with __str__ attribute, so... (最近在研究 heap 相关的, 你平时用 weibo 么? 希望可以多交流.)
@cloudburst https://github.com/cloudburst/libheap/blob/master/prettyprinters.py#L60, most in prettyprinters.py.

def pretty_print_heap_lookup(val):
    "Look-up and return a pretty printer that can print val."

    val_type = val.type

    # If it points to a reference, get the reference.
    if val_type.code == gdb.TYPE_CODE_REF:
        val_type = val_type.target()

    # Get the unqualified type, stripped of typedefs.
    val_type = val_type.unqualified().strip_typedefs()

    # Get the type name.
    typename = val_type.tag
    if typename == None:
        return None
    elif typename == "malloc_par":
        return malloc_par_printer(val)
    elif typename == "malloc_state":
        return malloc_state_printer(val)
    elif typename == "malloc_chunk":
        return malloc_chunk_printer(val)
    elif typename == "_heap_info":
        return heap_info_printer(val)
    else:
        print(typename)

    # Cannot find a pretty printer for type(val)
    return None

gdb.pretty_printers.append(pretty_print_heap_lookup)

gdb print is enough for me, so i just #gdb.pretty_printers.append(pretty_print_heap_lookup).

from libheap.

@jmpews 不怎么用微博:(，欢迎多多交流~

from libheap.

I just tried this with gdb 7.11.1 (64bit/python3) on Ubuntu 16.04 LTS and I can't reproduce the pretty printer errors.

(gdb) python print(malloc_state(0xdeadbeef)), etc works fine for me.

Please reopen if you can show a sample command that will trigger the second error. Thank you.

from libheap.

@jmpews The pretty printers error is now fixed in 63b3dd2

Sorry I couldn't originally understand how to reproduce. I am working on fixing other errors as well. Thank you for opening an issue!

from libheap.

@jmpews I've now tested the library rewrite on Ubuntu 14.04 and 16.04 on both 32bit and 64bit. I think all of the casting errors should be gone now.

Please let me know if you have any more issues with the latest git checkout!

from libheap.