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Re: [libunwind] alloca()

From: Cary Coutant
Subject: Re: [libunwind] alloca()
Date: Wed, 10 Dec 2003 09:46:56 -0800

Or do we just say that r42 contains the unmodified usp (see below)?

Yes, you need to use UNW_DYN_SPILL_SP_REL to say that psp (previous stack pointer) has been spilled to r42 at slot #2. You also need to use UNW_DYN_POP_FRAMES to specify the slot where sp is restored to its original value here:

0x2000000062738590:     [MII]       add r12=r42,r0


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