On Wed, Jul 17, 2019 at 5:02 PM Vaibhav Rustagi vaibhavrustagi@google.com wrote:
This patch series includes the following:
- Adding compiler options to not use XMM registers in the purgatory code.
- Reuse the implementation of memcpy and memset instead of relying on
__builtin_memcpy and __builtin_memset as it causes infinite recursion in clang.
Thanks for the series, and debugging and finding the issue. These would explain why I couldn't get kexec to work with Clang built kernels. Comments/reviews inbound on the individual patches.
Nick Desaulniers (1): x86/purgatory: do not use __builtin_memcpy and __builtin_memset.
Vaibhav Rustagi (1): x86/purgatory: add -mno-sse, -mno-mmx, -mno-sse2 to Makefile
arch/x86/purgatory/Makefile | 4 ++++ arch/x86/purgatory/purgatory.c | 6 ++++++ arch/x86/purgatory/string.c | 23 ----------------------- 3 files changed, 10 insertions(+), 23 deletions(-) delete mode 100644 arch/x86/purgatory/string.c
-- 2.22.0.510.g264f2c817a-goog