This patch series adds qemu_strerror() function, which is thread-safe
version of the libc strerror(). The first patch adds the
qemu_strerror() funciton, and the second patch replaces strerror()
function in linux-user/* with qemu_strerror() function.

Because it involves thread-safety, and the strerror_r()
function called by qemu_strerror() has different type signatures between
architectures because of historical reason, the implementation of
qemu_strerror is a bit complicated.

All tests except for skipped ones are passed in my environment (x86_64
linux).

Yohei Kojima (2):
  util: Add thread-safe qemu_strerror() function
  linux-user: replace strerror() function to the thread safe
    qemu_strerror()

 include/qemu/cutils.h | 20 +++++++++++++++++++
 linux-user/elfload.c  |  4 ++--
 linux-user/main.c     |  4 ++--
 linux-user/syscall.c  |  2 +-
 util/cutils.c         | 45 +++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 70 insertions(+), 5 deletions(-)

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2.39.2