Pull request linux-user 20230308-v2

Fix gdt on i386/x86_64
Handle traps on sparc
Add translation for argument of msync
Emulate CLONE_PIDFD flag in clone
handle netlink flag NLA_F_NESTED
fix sockaddr_in6 endianness
Fix brk() to release pages
fill out task state in /proc/self/stat
add support for xtensa FDPIC
Fix unaligned memory access in prlimit64 syscall
add target to host netlink conversions
fix timerfd read endianness conversion
Fix access to /proc/self/exe
Add strace for prlimit64() syscall

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# 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

* tag 'linux-user-for-8.0-pull-request' of https://gitlab.com/laurent_vivier/qemu

: (28 commits)
  linux-user: fix bug about incorrect base addresss of gdt on i386 and x86_64
  linux-user/sparc: Handle tag overflow traps
  linux-user/sparc: Handle floating-point exceptions
  linux-user/sparc: Handle unimplemented flush trap
  linux-user/sparc: Handle coprocessor disabled trap
  linux-user/sparc: Handle privilidged action trap
  linux-user/sparc: Handle priviledged opcode trap
  linux-user/sparc: Handle getcc, setcc, getpsr traps
  linux-user/sparc: Handle division by zero traps
  linux-user/sparc: Handle software breakpoint trap
  linux-user/sparc: Fix sparc64_{get, set}_context traps
  linux-user/sparc: Tidy window spill/fill traps
  linux-user/sparc: Use TT_TRAP for flush windows
  linux-user/sparc: Tidy syscall error return
  linux-user/sparc: Tidy syscall trap
  linux-user: Emulate CLONE_PIDFD flag in clone()
  linux-user: Add translation for argument of msync()
  linux-user: handle netlink flag NLA_F_NESTED
  linux-user: fix sockaddr_in6 endianness
  linux-user: Add strace for prlimit64() syscall
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>