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Hi, This patch adds two classes for merging entries EXIDX sections. The Arm_exidx_merged_section is a relaxed section wrapping around an EXIDX input section. It contains an section offset map that maps input section offsets to either output section offsets or invalid_offset. When some but not all entries in an EXIDX input section are merged, it is converted into an Arm_exidx_merged_section. If all entries are merged, the EXIDX input section is simply dropped from the output section. The other class Arm_exidx_cantunwind represented an EXIDX_CANTUNWIND entry created by the linker. Both of these classes are sub-classes of Output_section_data and they are inserted into an EXIDX output section in the first relaxation pass, in whcih the output EXIDX section is fixed up. -Doug 2010-01-21 Doug Kwan <dougkwan@google.com> elfcpp/ChangeLog: * arm.h (EXIDX_CANTUNWIND): New enum. gold/ChangeLog: * arm.cc (Arm_exidx_cantunwind, Arm_exidx_merged_section): New classes. (Arm_exidx_section_offset_map): New type.
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patch-exidx-merged-section.txt
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