b847bd64ea
Unfortunately, Clang did not have support for "sp" as a global register
definition, and was crashing after the addition of current_stack_pointer.
This has been fixed in Clang 14, but earlier Clang versions need to
avoid this code, so add a versioned test and revert back to the
open-coded asm instances. Fixes Clang build error:
fatal error: error in backend: Invalid register name global variable
Fixes: 200ed341b864 ("mips: Implement "current_stack_pointer"")
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/lkml/YikTQRql+il3HbrK@dev-arch.thelio-3990X
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Yanteng Si <siyanteng01@gmail.com>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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|---|---|---|
| .. | ||
| bitops.c | ||
| bswapdi.c | ||
| bswapsi.c | ||
| csum_partial.S | ||
| delay.c | ||
| dump_tlb.c | ||
| iomap_copy.c | ||
| iomap-pci.c | ||
| libgcc.h | ||
| Makefile | ||
| memcpy.S | ||
| memset.S | ||
| mips-atomic.c | ||
| multi3.c | ||
| r3k_dump_tlb.c | ||
| strncpy_user.S | ||
| strnlen_user.S | ||
| uncached.c | ||