tree 342ab495274f375a6a2845be50d598e8c3bde71d
parent c7522272ffafa9b162f135aaee5d02a8895fcb0b
author Mark Mentovai <mark@chromium.org> 1583509239 -0500
committer Mark Mentovai <mark@chromium.org> 1583514537 +0000

dump_syms: Reintroduce warnings inadvertently removed by 47cd498384fd

Previously, dump_syms produced warnings whenever a DW_AT_specification
or DW_AT_abstract_origin attribute was a forward reference. 47cd498384fd
allowed those attributes to carry forward references, removing the
warnings altogether. It was not correct to remove the warnings entirely.
References that do not point to valid DIEs should still produce
warnings, whether a back reference or a forward reference.

This reintroduces those warnings as appropriate.

Bug: google-breakpad:813
Test: dumper_unittest SimpleCU.UnknownAbstractOrigin,Specifications.BadOffset
Change-Id: Ie7222c7a1886bab31423f27e2fbcce93e69625b3
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/2090103
Reviewed-by: Mike Frysinger <vapier@chromium.org>