[0/2] KASAN support for RISC-V

Message

Nick Hu Aug. 7, 2019, 7:19 a.m. UTC

KASAN is an important runtime memory debugging feature
in linux kernel which can detect use-after-free and out-of-
bounds problems.

There are two patches in this letter:
1. Porting the memmove string operation.
2. Porting the feature KASAN.

Nick Hu (2):
  riscv: Add memmove string operation.
  riscv: Add KASAN support

 arch/riscv/Kconfig                  |    2 +
 arch/riscv/include/asm/kasan.h      |   26 +++++++++
 arch/riscv/include/asm/pgtable-64.h |    5 ++
 arch/riscv/include/asm/string.h     |   10 ++++
 arch/riscv/kernel/head.S            |    3 +
 arch/riscv/kernel/riscv_ksyms.c     |    4 ++
 arch/riscv/kernel/setup.c           |    9 +++
 arch/riscv/kernel/vmlinux.lds.S     |    1 +
 arch/riscv/lib/Makefile             |    1 +
 arch/riscv/lib/memcpy.S             |    5 +-
 arch/riscv/lib/memmove.S            |   64 ++++++++++++++++++++++
 arch/riscv/lib/memset.S             |    5 +-
 arch/riscv/mm/Makefile              |    6 ++
 arch/riscv/mm/kasan_init.c          |  102 +++++++++++++++++++++++++++++++++++
 14 files changed, 239 insertions(+), 4 deletions(-)
 create mode 100644 arch/riscv/include/asm/kasan.h
 create mode 100644 arch/riscv/lib/memmove.S
 create mode 100644 arch/riscv/mm/kasan_init.c