Hi Edson, On Mon, Jun 02, 2014 at 09:23:39AM -0500, Edson Ticona wrote: > Hi > > I am working on the multiarchitecture support. I have forked strace to > my repo [1]. > I found a project [2] which generates a table for the syscalls, > although it works only for 2.6.x I modified it for the 3.10 based on a > pull from that project and you can find the syscall tables I generated > here [3][4] for x86 and x86_64.
These are nice tables although I don't quite see how they would help. > I added debugging info for the set_personality() and I am working on a > structs.h to make a general interface for handling structures in > different architectures. I am starting with iovec and stack_t. Is this > approach good? A general interface for handling all structures and personalities? Could you elaborate on that, please? The approach I was thinking about is this: - isolate personality specific code; all syscall decoders that depend on personality specific types, sizes, and offsets are likely to fall into this category; - actually preprocess that code separately for each personality; e.g. for x86_64 this would imply gcc -m64, -mx32, -m32, and additional preprocessing of basic types; - automatically choose the right "personalized" code for each traced process. -- ldv
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