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Re: libsanitizer merge from upstream r208536


On Mon, May 12, 2014 at 03:20:37PM +0400, Konstantin Serebryany wrote:
> 5 months' worth of changes may break any platform we are not testing ourselves
> (that includes Ubuntu 12.04, 13.10, 14.04, Mac 10.9, Windows 7, Android ARM),
> please help us test this patch on your favorite platform.

On powerpc64 I hit
/home/polacek/gcc/libsanitizer/asan/asan_linux.cc:209:3: error: #error "Unsupported arch"
 # error "Unsupported arch"

because the merge (aka clang's r196802) removed ppc64 hunk of code:

-# elif defined(__powerpc__) || defined(__powerpc64__)
-  ucontext_t *ucontext = (ucontext_t*)context;
-  *pc = ucontext->uc_mcontext.regs->nip;
-  *sp = ucontext->uc_mcontext.regs->gpr[PT_R1];
-  // The powerpc{,64}-linux ABIs do not specify r31 as the frame
-  // pointer, but GCC always uses r31 when we need a frame pointer.
-  *bp = ucontext->uc_mcontext.regs->gpr[PT_R31];
-# elif defined(__sparc__)

	Marek


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