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Reply-To: moss AT cs DOT umass DOT edu
Subject: Re: Help debugging a dll issue
References: <b21c0ab1-341b-d6f5-915b-f73973b8079b AT cs DOT umass DOT edu> <CABHT960Yx_bg-NaHWcxePEV+Xz74NaVtsu+NjkrSZs4-62rCOA AT mail DOT gmail DOT com> <3a4d2501-8845-99b6-d58b-544bff5e223f AT cs DOT umass DOT edu> <20160520112618 DOT GC12938 AT dimstar DOT local DOT net>
To: cygwin AT cygwin DOT com
From: Eliot Moss <moss AT cs DOT umass DOT edu>
Message-ID: <dcfd0854-b7d0-9598-215c-a5f380b23968@cs.umass.edu>
Date: Fri, 20 May 2016 08:02:20 -0400
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On 5/20/2016 7:26 AM, Duncan Roe wrote:

> Hi Eliot,
>
> Do you know what is the name of the totally different symbol? (maybe from nm -D)

Yes -- I have been using nm and objdump to examine the relevant files.  The dll
is called libpypy-c.dll.  The symbol I want to bind to is pypy_main_startup, and
its proper value (as returned by nm and objdump) is 0x6410ac60.  The result I
get is the value of symbol pypy_g_PyNumber_Negative (an automatically generated
C function), which is 0x63443f00.

I wonder if these collide in some internal hash table and the hash lookup (or
the table building) is broken in some subtle way.

Regards -- Eliot

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