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--only-keep-debug produces a debug file as the output that only preserves contents of sections useful for debugging purposes (the binutils implementation preserves SHT_NOTE and non-SHF_ALLOC sections), by changing their section types to SHT_NOBITS and rewritting file offsets. See https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html The intended use case is: ``` llvm-objcopy --only-keep-debug a a.dbg llvm-objcopy --strip-debug a b llvm-objcopy --add-gnu-debuglink=a.dbg b ``` The current layout algorithm is incapable of deleting contents and shrinking segments, so it is not suitable for implementing the functionality. This patch adds a new algorithm which assigns sh_offset to sections first, then modifies p_offset/p_filesz of program headers. It bears a resemblance to lld/ELF/Writer.cpp. Reviewed By: jhenderson, jakehehrlich Differential Revision: https://reviews.llvm.org/D67137 |
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| .. | ||
| bugpoint.rst | ||
| dsymutil.rst | ||
| FileCheck.rst | ||
| index.rst | ||
| lit.rst | ||
| llc.rst | ||
| lli.rst | ||
| llvm-addr2line.rst | ||
| llvm-ar.rst | ||
| llvm-as.rst | ||
| llvm-bcanalyzer.rst | ||
| llvm-build.rst | ||
| llvm-config.rst | ||
| llvm-cov.rst | ||
| llvm-cxxfilt.rst | ||
| llvm-cxxmap.rst | ||
| llvm-diff.rst | ||
| llvm-dis.rst | ||
| llvm-dwarfdump.rst | ||
| llvm-exegesis-analysis.png | ||
| llvm-exegesis.rst | ||
| llvm-extract.rst | ||
| llvm-lib.rst | ||
| llvm-link.rst | ||
| llvm-lipo.rst | ||
| llvm-locstats.rst | ||
| llvm-mca.rst | ||
| llvm-nm.rst | ||
| llvm-objcopy.rst | ||
| llvm-objdump.rst | ||
| llvm-pdbutil.rst | ||
| llvm-profdata.rst | ||
| llvm-ranlib.rst | ||
| llvm-readelf.rst | ||
| llvm-readobj.rst | ||
| llvm-size.rst | ||
| llvm-stress.rst | ||
| llvm-strings.rst | ||
| llvm-strip.rst | ||
| llvm-symbolizer.rst | ||
| opt.rst | ||
| tblgen.rst | ||
