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[Gcl-devel] Re: function addresses and ld.so
From: |
David Mosberger |
Subject: |
[Gcl-devel] Re: function addresses and ld.so |
Date: |
Wed, 13 Aug 2003 16:35:36 -0700 |
>>>>> On Tue, 12 Aug 2003 18:24:47 -0400, Camm Maguire <address@hidden> said:
Camm> GCL stores addresses of its functions in data structures
Camm> allocated in the normal way in its .data section. It then
Camm> runs an unexec routine which saves the memory image including
Camm> these addresses to a file.
Isn't this a dangerous thing to do even on non-function-descriptor
architectures? If I understand you right, GCL depends on the loader
mapping the shared objects on subsequent executions at the exact same
location as during the original execution. Wouldn't, e.g.,
LD_PRELOADing something break this assumption?
--david