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e6b49ec077
Previous version of this patch failed on darwin targets because of different handling of cross-debug-section relocations. This fixes the tests to emit the DW_AT_str_offsets_base attribute correctly in both cases. Since doing this is a non-trivial amount of code, and I'm going to need it in more than one test, I've added a helper function to the dwarfgen DIE class to do it. Original commit message follows: The motivation for this is D49493, where we'd like to test details of debug_str_offsets behavior which is difficult to trigger from a traditional test. This adds the plubming necessary for dwarfgen to generate this section. The more interesting changes are: - I've moved emitStringOffsetsTableHeader function from DwarfFile to DwarfStringPool, so I can generate the section header more easily from the unit test. - added a new addAttribute overload taking an MCExpr*. This is used to generate the DW_AT_str_offsets_base, which links a compile unit to the offset table. I've also added a basic test for reading and writing DW_form_strx forms. Reviewers: dblaikie, JDevlieghere, probinson Subscribers: llvm-commits, aprantl Differential Revision: https://reviews.llvm.org/D49670 llvm-svn: 338031 |
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