diff options
author | Michael Davidson <md@google.com> | 2017-07-24 16:51:55 -0700 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-11-27 16:07:59 +0100 |
commit | 5f9c9bdde17a68dc889a8191020c73f55d2ea7f9 (patch) | |
tree | 0882c691c3d5dffcf96a72d7a898c0c9af26c550 /arch/x86/Makefile | |
parent | 397fae4e356f2ebb4baa2fad3c6b170290db5e9c (diff) |
x86/boot: #undef memcpy() et al in string.c
commit 18d5e6c34a8eda438d5ad8b3b15f42dab01bf05d upstream.
undef memcpy() and friends in boot/string.c so that the functions
defined here will have the correct names, otherwise we end up
up trying to redefine __builtin_memcpy() etc.
Surprisingly, GCC allows this (and, helpfully, discards the
__builtin_ prefix from the function name when compiling it),
but clang does not.
Adding these #undef's appears to preserve what I assume was
the original intent of the code.
Signed-off-by: Michael Davidson <md@google.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Bernhard.Rosenkranzer@linaro.org
Cc: Greg Hackmann <ghackmann@google.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170724235155.79255-1-mka@chromium.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/Makefile')
0 files changed, 0 insertions, 0 deletions