Pavel Labath 4a9babb26e [NativeProcessLinux] Refactor PtraceWrapper ...

Summary:
This changes PtraceWrapper to return an Error, while the actual result is in an pointer parameter
(instead of the other way around). Also made a couple of PtraceWrapper arguments default to zero.
This arrangement makes a lot of the code much simpler.

Test Plan: Tests pass on linux. It compiles on android arm64/mips64.

Reviewers: chaoren, mohit.bhakkad

Subscribers: tberghammer, aemerson, lldb-commits

Differential Revision: http://reviews.llvm.org/D10808

llvm-svn: 241079

2015-06-30 17:04:49 +00:00

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