Leonard Mosescu 2ae3ec3b81 Restructure the minidump loading path and add early & explicit consistency checks ...

Corrupted minidumps was leading to unpredictable behavior.

This change adds explicit consistency checks for the minidump early on. The
checks are not comprehensive but they should catch obvious structural violations:

streams with type == 0
duplicate streams (same type)
overlapping streams
truncated minidumps

Another early check is to make sure we actually support the minidump architecture
instead of crashing at a random place deep inside LLDB.

Differential Revision: https://reviews.llvm.org/D49202

llvm-svn: 336918

2018-07-12 17:27:18 +00:00

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