Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-5.0-pull-request...

Implement TARGET_SO_PEERSEC
Fix rt signals management

# gpg: Signature made Thu 13 Feb 2020 12:20:50 GMT
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-5.0-pull-request:
  linux-user: implement TARGET_SO_PEERSEC
  linux-user: fix use of SIGRTMIN
  linux-user: fix TARGET_NSIG and _NSIG uses
  linux-user: cleanup signal.c
  linux-user: add missing TARGET_SIGRTMIN for hppa

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
#	linux-user/signal.c

diff --cc linux-user/signal.c
index 02f860ecb99481e2c6c10eab3e0e1267d197bde7,046159dd0c5b9f87518989da28e07e0979d33923..94259dd0706465ba989c7dd20970b70565e38d9f
--- 1/linux-user/signal.c
--- 2/linux-user/signal.c
+++ b/linux-user/signal.c
@@@ -509,8 -560,8 +560,8 @@@ void signal_init(void
      act.sa_flags = SA_SIGINFO;
      act.sa_sigaction = host_signal_handler;
      for(i = 1; i <= TARGET_NSIG; i++) {
 -#ifdef TARGET_GPROF
 +#ifdef CONFIG_GPROF
-         if (i == SIGPROF) {
+         if (i == TARGET_SIGPROF) {
              continue;
          }
  #endif