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Commit 6c732461 authored by Fangrui Song's avatar Fangrui Song
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[ELF] Fix a null pointer dereference when --emit-relocs and --strip-debug are used together

Fixes https://bugs.llvm.org//show_bug.cgi?id=44878

When --strip-debug is specified, .debug* are removed from inputSections
while .rel[a].debug* (incorrectly) remain.

LinkerScript::addOrphanSections() requires the output section of a relocated
InputSectionBase to be created first.

.debug* are not in inputSections ->
output sections .debug* are not created ->
getOutputSectionName(.rel[a].debug*) dereferences a null pointer.

Fix the null pointer dereference by deleting .rel[a].debug* from inputSections as well.

Reviewed By: grimar, nickdesaulniers

Differential Revision: https://reviews.llvm.org/D74510
parent 21d09ccf
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