Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2018-10-17' into staging

- Updates for qtest entries in test/Makefile.include
- Simple updates for some shell scripts
- Misc simple patches for files without regular subsystem pull requests

# gpg: Signature made Wed 17 Oct 2018 08:20:35 BST
# gpg:                using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>"
# gpg:                 aka "Thomas Huth <thuth@redhat.com>"
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>"
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>"
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2018-10-17:
  configure: remove glib_subprocess check
  hw/core/generic-loader: Compile only once, not for each target
  cpu: Provide a proper prototype for target_words_bigendian() in a header
  hw/core/generic-loader: Set a category for the generic-loader device
  qemu/compiler: Wrap __attribute__((flatten)) in a macro
  mailmap: Fix Reimar Döffinger name
  show-fixed-bugs.sh: Modern shell scripting (use $() instead of ``)
  git-submodule.sh: Modern shell scripting (use $() instead of ``)
  archive-source.sh: Modern shell scripting (use $() instead of ``)
  MAINTAINERS: update block/sheepdog maintainers
  gdbstub: Remove unused include
  tests: remove gcov-files- variables
  tests: Prevent more accidental test disabling
  target/cris/translate: Get rid of qemu_log_separate()
  qemu-common.h: update copyright date to 2018

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

1 files changed, 15 insertions, 0 deletions

diff --git a/include/qemu/compiler.h b/include/qemu/compiler.h
index bf47e7bee4..66f8c241dc 100644
--- a/include/qemu/compiler.h
+++ b/include/qemu/compiler.h
@@ -131,6 +131,21 @@
 #define HAS_ASSUME_ALIGNED
 #endif
 
+#ifndef __has_attribute
+#define __has_attribute(x) 0 /* compatibility with older GCC */
+#endif
+
+/*
+ * GCC doesn't provide __has_attribute() until GCC 5, but we know all the GCC
+ * versions we support have the "flatten" attribute. Clang may not have the
+ * "flatten" attribute but always has __has_attribute() to check for it.
+ */
+#if __has_attribute(flatten) || !defined(__clang__)
+# define QEMU_FLATTEN __attribute__((flatten))
+#else
+# define QEMU_FLATTEN
+#endif
+
 /* Implement C11 _Generic via GCC builtins.  Example:
  *
  *    QEMU_GENERIC(x, (float, sinf), (long double, sinl), sin) (x)