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LLD warns if it encounters malformed debug data when parsing line
information for an undefined reference. We only want to warn once.
This patch adds additional checking to make sure the warnings are
printed only once, both for variables within the same program and
variables in later line programs.
Reviewed by: grimar, MaskRay
Differential Revision: https://reviews.llvm.org/D71759
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Reviewed by: ruiu, grimar, espindola
Differential Revision: https://reviews.llvm.org/D44562
Summary:
r331971 changes the debug line parser interface to report LLVM errors in an
interface that different executables can use, rather than always being printed
directly as warnings to stderr. This change allows LLD to make use of the new
interface and call its own warning methods to report problems.
llvm-svn: 331972
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LLD uses the debug info and debug line sections to determine the location of
e.g. references to undefined symbols, when producing error messages. In the
event that debug info was present, but debug line parsing failed for some
reason, then a nullptr would end up being dereferenced by the location-lookup
code.
Differential Revision: https://reviews.llvm.org/D44205
Reviewers: grimar
llvm-svn: 326899
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