Hsiangkai Wang 2bdc8dd491 [DebugInfo] Generate fixups as emitting DWARF .debug_line. ...

It is necessary to generate fixups in .debug_line as relaxation is
enabled due to the address delta may be changed after relaxation.

DWARF will record the mappings of lines and addresses in
.debug_line section. It will encode the information using special
opcodes, standard opcodes and extended opcodes in Line Number
Program. I use DW_LNS_fixed_advance_pc to encode fixed length
address delta and DW_LNE_set_address to encode absolute address
to make it possible to generate fixups in .debug_line section.

Differential Revision: https://reviews.llvm.org/D46850

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338477 91177308-0d34-0410-b5e6-96231b3b80d8

2018-08-01 02:18:06 +00:00

..

lit.local.cfg

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relax-debug-line.ll

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