[all-commits] [llvm/llvm-project] 14cd11: [sanitizer] Add the settings of Read and Write fla...

[Lu Weining via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 14cd113e69935e2de9c4d300c3ab01cf83c5d4db
      https://github.com/llvm/llvm-project/commit/14cd113e69935e2de9c4d300c3ab01cf83c5d4db
  Author: Youling Tang <tangyouling at loongson.cn>
  Date:   2022-11-10 (Thu, 10 Nov 2022)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp

  Log Message:
  -----------
  [sanitizer] Add the settings of Read and Write flags in SignalContext for LoongArch

The bit-30 in this `__flags` means the address error is due to memory load, and the
bit-31 means the address error is due to memory store. (see SC_ADDRERR_RD
and SC_ADDRERR_WR in kernel arch/loongarch/include/uapi/asm/sigcontext.h).

`illegal_write_test.cpp` and `illegal_read_test.cpp` have been tested and passed.

Reviewed By: SixWeining, xen0n, XiaodongLoong

Differential Revision: https://reviews.llvm.org/D137231