Update aarch64 bits/hwcap.h, dl-procinfo.c for Linux 4.16 HWCAP_ASIMDFHM

[Joseph Myers]

This patch updates the aarch64 bits/hwcap.h and dl-procinfo.c for the
new HWCAP_ASIMDFHM value in Linux 4.16.

Tested with build-many-glibcs.py for aarch64-linux-gnu.

2018-04-20  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_ASIMDFHM):
	New macro.
	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
	Increase to 24.
	(_dl_aarch64_cap_flags): Add asimdfhm.

diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
index 569eb07..6f05ec1 100644
--- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -44,3 +44,4 @@
 #define HWCAP_ASIMDDP		(1 << 20)
 #define HWCAP_SHA512		(1 << 21)
 #define HWCAP_SVE		(1 << 22)
+#define HWCAP_ASIMDFHM		(1 << 23)
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
index 940f648..054d5c8 100644
--- a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
+++ b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
@@ -57,7 +57,7 @@ PROCINFO_CLASS struct cpu_features _dl_aarch64_cpu_features
 #endif
 
 /* Number of HWCAP bits set.  */
-#define _DL_HWCAP_COUNT 23
+#define _DL_HWCAP_COUNT 24
 
 #if !defined PROCINFO_DECL && defined SHARED
   ._dl_aarch64_cap_flags
@@ -68,7 +68,8 @@ PROCINFO_CLASS const char _dl_aarch64_cap_flags[_DL_HWCAP_COUNT][10]
 /* Matches the names in arch/arm64/kernel/cpuinfo.c of Linux.  */
 = { "fp", "asimd", "evtstrm", "aes", "pmull", "sha1", "sha2", "crc32",
     "atomics", "fphp", "asimdhp", "cpuid", "asimdrdm", "jscvt", "fcma",
-    "lrcpc", "dcpop", "sha3", "sm3", "sm4", "asimddp", "sha512", "sve" }
+    "lrcpc", "dcpop", "sha3", "sm3", "sm4", "asimddp", "sha512", "sve",
+    "asimdfhm" }
 #endif
 #if !defined SHARED || defined PROCINFO_DECL
 ;

-- 
Joseph S. Myers
joseph@codesourcery.com