The section headers for XCOFF files have a subtype flag for Dwarf
sections. This PR updates obj2yaml, yaml2obj, and llvm-readobj so that
they recognize the subtype.
When generating XCOFF, the compiler generates a csect with an internal
name. Each function results in a label within the csect. This patch
replaces the internal name ".text" with an empty string "". This avoids
adding special code to handle a function text() in the source file, and
works better with some XCOFF tools that are confused when the csect and
the first function have the same address.
Reviewed By: hubert.reinterpretcast
Differential Revision: https://reviews.llvm.org/D154854
Summary: DWARF32 is not supported for XCOFF64 under non-integrated-as mode on AIX, because system assembler will fill the debug section lengths according to DWARF64 format. While in intergrated-as mode, XCOFF64 should be able to select the DWARF format.
Reviewed By: shchenz
Differential Revision: https://reviews.llvm.org/D150181
The LIT test cases were migrated with the script provided by
Nikita Popov. Due to the size of the change it is split into
several parts.
Reviewed By: nemanja, amyk, nikic, PowerPC
Differential Revision: https://reviews.llvm.org/D135470
