https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95482
Bug ID: 95482 Summary: Feature request: add -gsplit-dwarf=single Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: debug Assignee: unassigned at gcc dot gnu.org Reporter: i at maskray dot me Target Milestone: --- DWARF v5 Appendix F. says > The sections that do not require relocation, however, can be written to the > relocatable object (.o) file but ignored by the linker, or they can be > written to a separate DWARF object (.dwo) file that need not be accessed by > the linker. GCC/clang -gsplit-dwarf write a separate DWARF object (.dwo) clang in addition supports -gsplit-dwarf=single (https://reviews.llvm.org/D52296 ) to write the sections (with the SHF_EXCLUDE flag) in the .o file. Linkers ignore SHF_EXCLUDE sections in non -r mode. Note, SHF_EXCLUDE (0x80000000) is in the range of processor-specific bits and clashes with several processors's (obsoleted?) flags (see https://sourceware.org/pipermail/binutils/2020-April/110691.html )