[Qemu-devel] [PATCH v4 0/4] target/arm: Implement ARMv8.5-BTI for linux-user

[Richard Henderson]

The bits within the elf file that cover this have been published[1],
but the change to <asm/mman.h> for use by mmap/mprotect has not.
So I've made something up with which to make progress (TARGET_PROT_BTI).

I intend to press folk at Linaro Connect next week on publishing the
necessary ABI changes for this and ARMv8.5-MemTag.


r~


[1] 
https://developer.arm.com/docs/ihi0056/latest/elf-for-the-arm-64-bit-architecture-aarch64-abi-2018q4


Richard Henderson (4):
  linux-user/aarch64: Reset btype for syscalls and signals
  linux-user: Set PAGE_TARGET_1 for TARGET_PROT_BTI
  linux-user: Parse NT_GNU_PROPERTY_TYPE_0 notes
  tests/tcg/aarch64: Add bti smoke test

 include/exec/cpu-all.h            | 12 +++--
 linux-user/syscall_defs.h         |  5 ++
 linux-user/aarch64/cpu_loop.c     |  7 +++
 linux-user/aarch64/signal.c       |  5 +-
 linux-user/elfload.c              | 79 ++++++++++++++++++++++++++-----
 linux-user/mmap.c                 | 13 ++++-
 target/arm/translate-a64.c        |  6 +--
 tests/tcg/aarch64/bti-1.c         | 62 ++++++++++++++++++++++++
 tests/tcg/aarch64/bti-crt.inc.c   | 69 +++++++++++++++++++++++++++
 tests/tcg/aarch64/Makefile.target |  3 ++
 10 files changed, 241 insertions(+), 20 deletions(-)
 create mode 100644 tests/tcg/aarch64/bti-1.c
 create mode 100644 tests/tcg/aarch64/bti-crt.inc.c

-- 
2.17.1