Peter Hurley writes: > On 10/10/2014 12:36 PM, Russell King - ARM Linux wrote: > > On Fri, Oct 10, 2014 at 12:26:14PM -0400, Peter Hurley wrote: > >> gcc versions 4.8.[012] and 4.9.0 generates code that prematurely > >> adjusts the stack pointer such that still-to-be-referenced locals > >> are below the stack pointer, which allows them to be overwritten > >> by interrupts. > > > > I would much rather do this in asm-offsets.c, along side the other ARM > > specific buggy compiler test(s). I'm presently putting together such > > a patch. > > > > The information in the thread on linux-omap says only GCC 4.8.1 and > > GCC 4.8.2. Where do you get the other versions from? > > The gcc PR linked in the commit message; see the "Known to fail" field.
The 4.8.0 release is broken, but the 4.9.0 one is not. It's unfortunate, but "4.9.0" may refer to "the 4.9.0 release" or to "some point after trunk forked 4.8 branch up to and including the 4.9.0 release point". In this case, it's the latter -- this can be inferred from the fact that the fix went into trunk in October 2013 while 4.9.0 was branched and released during the first half of 2014. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/