Merge remote-tracking branch 'pmaydell/tcg-aarch64.next' into staging

# By Claudio Fontana (9) and others
# Via Peter Maydell
* pmaydell/tcg-aarch64.next:
  MAINTAINERS: add tcg/aarch64 maintainer
  configure: permit compilation on arm aarch64
  tcg/aarch64: implement user mode qemu ld/st
  user-exec.c: aarch64 initial implementation of cpu_signal_handler
  tcg/aarch64: implement sign/zero extend operations
  tcg/aarch64: implement byte swap operations
  tcg/aarch64: implement AND/TEST immediate pattern
  tcg/aarch64: improve arith shifted regs operations
  tcg/aarch64: implement new TCG target for aarch64
  include/elf.h: add aarch64 ELF machine and relocs
  configure: Drop CONFIG_ATFILE test
  linux-user: Drop direct use of openat etc syscalls
  linux-user: Allow getdents to be provided by getdents64

Message-id: 1371052645-9006-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 9 insertions, 27 deletions

diff --git a/configure b/configure
index 1654413762..1bab634c43 100755
--- a/configure
+++ b/configure
@@ -386,6 +386,8 @@ elif check_define __s390__ ; then
   fi
 elif check_define __arm__ ; then
   cpu="arm"
+elif check_define __aarch64__ ; then
+  cpu="aarch64"
 elif check_define __hppa__ ; then
   cpu="hppa"
 else
@@ -408,6 +410,9 @@ case "$cpu" in
   armv*b|armv*l|arm)
     cpu="arm"
   ;;
+  aarch64)
+    cpu="aarch64"
+  ;;
   hppa|parisc|parisc64)
     cpu="hppa"
   ;;
@@ -2557,29 +2562,6 @@ EOF
   fi
 fi
 
-#
-# Check for xxxat() functions when we are building linux-user
-# emulator.  This is done because older glibc versions don't
-# have syscall stubs for these implemented.
-#
-atfile=no
-cat > $TMPC << EOF
-#define _ATFILE_SOURCE
-#include <sys/types.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-int
-main(void)
-{
-	/* try to unlink nonexisting file */
-	return (unlinkat(AT_FDCWD, "nonexistent_file", 0));
-}
-EOF
-if compile_prog "" "" ; then
-  atfile=yes
-fi
-
 # Check for inotify functions when we are building linux-user
 # emulator.  This is done because older glibc versions don't
 # have syscall stubs for these implemented.  In that case we
@@ -3722,9 +3704,6 @@ fi
 if test "$curses" = "yes" ; then
   echo "CONFIG_CURSES=y" >> $config_host_mak
 fi
-if test "$atfile" = "yes" ; then
-  echo "CONFIG_ATFILE=y" >> $config_host_mak
-fi
 if test "$utimens" = "yes" ; then
   echo "CONFIG_UTIMENSAT=y" >> $config_host_mak
 fi
@@ -4086,6 +4065,9 @@ if test "$linux" = "yes" ; then
   s390x)
     linux_arch=s390
     ;;
+  aarch64)
+    linux_arch=arm64
+    ;;
   *)
     # For most CPUs the kernel architecture name and QEMU CPU name match.
     linux_arch="$cpu"
@@ -4450,7 +4432,7 @@ fi
 
 if test "$target_linux_user" = "yes" -o "$target_bsd_user" = "yes" ; then
   case "$ARCH" in
-  alpha | s390x)
+  alpha | s390x | aarch64)
     # The default placement of the application is fine.
     ;;
   *)