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# 2d1fc437 29-Mar-2018 Pavel Labath <labath@google.com>

.debug_names: Parse DW_IDX_die_offset as a reference

Before this patch we were parsing the attributes as section offsets, as
that is what apple_names is doing. However, this is not correct as DWARF

.debug_names: Parse DW_IDX_die_offset as a reference

Before this patch we were parsing the attributes as section offsets, as
that is what apple_names is doing. However, this is not correct as DWARF
v5 specifies that this attribute should use the Reference form class.

This also updates all the testcases (except the ones that deliberately
pass a different form) to use the correct form class.

llvm-svn: 328773

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Revision tags: llvmorg-5.0.2, llvmorg-5.0.2-rc2, llvmorg-5.0.2-rc1
# 906b777a 16-Mar-2018 Pavel Labath <labath@google.com>

DWARFVerifier: Enhance validation of .debug_names hash tables

Summary:
This patch adds more checks to the .debug_names validator. Specifically,
they check for:
- buckets claiming to be non-empty but

DWARFVerifier: Enhance validation of .debug_names hash tables

Summary:
This patch adds more checks to the .debug_names validator. Specifically,
they check for:
- buckets claiming to be non-empty but pointing to mismatched hashes
(most consumers would interpret this as an empty bucket, but it
questionable whether the generator meant that)
- hashes that are not reachable from any bucket
- names with incorrect hashes

Together, these checks ensure that any name in the index can be reached
through the hash table using the regular lookup algorithm. We also warn
if we encounter a name index without a hash table.

Reviewers: JDevlieghere, aprantl, dblaikie

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D44433

llvm-svn: 327699

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