Fix potentially undefined behaviour in the linker when parsing input statements.
* ldlang.h (LANG_FOR_EACH_INPUT_STATEMENT): Check for an empty file chain before examining the first input statement.
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2019-11-21 Nick Clifton <nickc@redhat.com>
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* ldlang.h (LANG_FOR_EACH_INPUT_STATEMENT): Check for an empty
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file chain before examining the first input statement.
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2019-11-21 Alan Modra <amodra@gmail.com>
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PR 46
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@ -574,7 +574,7 @@ extern asection *section_for_dot
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#define LANG_FOR_EACH_INPUT_STATEMENT(statement) \
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lang_input_statement_type *statement; \
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for (statement = &file_chain.head->input_statement; \
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for (statement = file_chain.head == NULL ? NULL : &file_chain.head->input_statement; \
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statement != NULL; \
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statement = statement->next)
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