a6d80351b7
When rtld runs the .fini section in a shared lib (C++), the code in question from .../contrib/gdb/config/alpha/crtbegin.asm first calls __do_globals_dtors_aux and then __do_frame_takedown. Unfortunately, the value of gp after a jsr is undefined and in this case had changed from before the call, probably as a result of calling code in some other shared library. The normal calling convention for alpha is to re-initialize gp using 'ldgp gp,0(ra)' after a jsr instruction but in this case no such re-initialization is done. This leads to a bogus value being read for the address of __do_frame_takedown and a quick segfault. Submitted by: dfr Obtained from: GCC 3.0
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