2 Commits

Author	SHA1	Message	Date
Rafael Espindola	b6b5f52ee8	Add support for the 's' operation to llvm-ar. ... If no other operation is specified, 's' becomes an operation instead of an modifier. The s operation just creates a symbol table. It is the same as running ranlib. We assume the archive was created by a sane ar (like llvm-ar or gnu ar) and if the symbol table is present, then it is current. We use that to optimize the most common case: a broken build system that thinks it has to run ranlib. llvm-svn: 187353	2013-07-29 12:40:31 +00:00
Rafael Espindola	ce7f52db48	Add an initial implementation of archive symbol table generation. ... The symbol table has forward references in the file. Instead of allocating a temporary buffer or counting the size and then writing, this implementation writes a dummy value first and patches it once the final value is known. There is room for performance improvement. I will implement them as soon as I get some other features (like a ranlib mode) in. llvm-svn: 186934	2013-07-23 10:47:01 +00:00