Kevin Enderby 1a26f183b2 Change llvm-nm for Mach-O files to use dyld info in some cases when printing symbols. ... In order to reduce swift binary sizes, Apple is now stripping swift symbols from the nlist symbol table. llvm-nm currently only looks at the nlist symbol table and misses symbols that are present in dyld info. This makes it hard to know the set of symbols for a binary using just llvm-nm. Unless you know to run llvm-objdump -exports-trie that can output the exported symbols in the dyld info from the export trie, which does so but in a different format. Also moving forward the time may come a when a fully linked Mach-O file that uses dyld will no longer have an nlist symbol table to avoid duplicating the symbol information. This change adds three flags to llvm-nm, -add-dyldinfo, -no-dyldinfo, and -dyldinfo-only. The first, -add-dyldinfo, has the same effect as when the new bit in the Mach-O header, MH_NLIST_OUTOFSYNC_WITH_DYLDINFO, appears in a binary. In that it looks through the dyld info from the export trie and adds symbols to be printed that are not already in its internal SymbolList variable. The -no-dyldinfo option turns this behavior off. The -dyldinfo-only option only looks at the dyld information and recreates the symbol table from the dyld info from the export trie and binding information. As if it the Mach-O file had no nlist symbol table. Also fixed a few bugs with Mach-O N_INDR symbols not correctly printing the indirect name, or in the same format as the old nm-classic program. rdar://32021551 llvm-svn: 305733		2017-06-19 19:38:22 +00:00
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CMakeLists.txt	[CMake] llvm-nm depends on intrinsics_gen	2016-11-19 03:16:33 +00:00
llvm-nm.cpp	Change llvm-nm for Mach-O files to use dyld info in some cases when printing symbols.	2017-06-19 19:38:22 +00:00
LLVMBuild.txt	Don't link with the archive library programs that don't use it.	2013-06-17 15:29:46 +00:00