Merge tag 'linux-user-for-7.2-pull-request' of https://gitlab.com/laurent_vivier...

linux-user pull request 20220928-v2

use 'max' instead of 'qemu32' / 'qemu64'
add  pidfd_open(), pidfd_send_signal() and pidfd_getfd()
Improve madvise(MADV_DONTNEED)
futex syscal rework
strace improvement
HP/PA fixes and improvement
Misc fixes

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# 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

* tag 'linux-user-for-7.2-pull-request' of https://gitlab.com/laurent_vivier/qemu: (37 commits)
  linux-user: Add parameters of getrandom() syscall for strace
  linux-user: Lock log around strace
  linux-user: Update print_futex_op
  linux-user: Implement PI futexes
  linux-user: Convert signal number for FUTEX_FD
  linux-user: Implement FUTEX_WAKE_BITSET
  linux-user: Sink call to do_safe_futex
  linux-user: Combine do_futex and do_futex_time64
  linux-user: Set ELF_BASE_PLATFORM for MIPS
  linux-user: Introduce stubs for ELF AT_BASE_PLATFORM
  linux-user/s390x: Save/restore fpc when handling a signal
  linux-user: Don't assume 0 is not a valid host timer_t value
  linux-user: fix bug about missing signum convert of sigqueue
  linux-user/hppa: Fix setup_sigcontext()
  linux-user/hppa: Allow PROT_GROWSUP and PROT_GROWSDOWN in mprotect()
  linux-user/hppa: Increase guest stack size to 80MB for hppa target
  linux-user/hppa: Drop stack guard page on hppa target
  linux-user/hppa: Add signal trampoline for hppa target
  linux-user: Add proper strace format strings for getdents()/getdents64()
  linux-user: Fix TARGET_PROT_SEM for XTENSA
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>