|From:||Bastian Blank <firstname.lastname@example.org>|
|Subject:||[RFC][PATCH 0/5] Add and use libgcc|
|Date:||Fri, 3 Apr 2009 17:39:41 +0200|
Hi gcc always expects to be able to use the symbols in libgcc for operations that are unsupported on the CPU. Linux added functions if needed or just worked around such operations. Sometimes it even describes the compiler as broken, even if it is properly documented by gcc themself. This patchset adds a copy of libgcc to the kernel and uses it if to do such unsupported operations. This way we can remove the usage of workarounds like do_div. Unsolved problems: - It currently uses the gcc-included longlong division support which is marked as possibly trapping. - The libgcc sources are currently unmodifed copies from gcc, this means it needs some headers with fixed names. Bastian -- Leave bigotry in your quarters; there's no room for it on the bridge. -- Kirk, "Balance of Terror", stardate 1709.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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