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Add AArch64 HWCAPs from Linux 5.0
- From: Joseph Myers <joseph at codesourcery dot com>
- To: <libc-alpha at sourceware dot org>
- Date: Mon, 18 Mar 2019 21:30:25 +0000
- Subject: Add AArch64 HWCAPs from Linux 5.0
This patch adds new AArch64 HWCAPs from Linux 5.0 to the AArch64
bits/hwcap.h and dl-procinfo.c.
Tested (compilation only) with build-many-glibcs.py for
aarch64-linux-gnu.
2019-03-18 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SB): New
macro.
(HWCAP_PACA): Likewise.
(HWCAP_PACG): Likewise.
* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
Increase to 32.
(_dl_aarch64_cap_flags): Add new entries for new HWCAPs.
diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
index 9a395c597f..5f50623953 100644
--- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
+++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
@@ -51,3 +51,6 @@
#define HWCAP_ILRCPC (1 << 26)
#define HWCAP_FLAGM (1 << 27)
#define HWCAP_SSBS (1 << 28)
+#define HWCAP_SB (1 << 29)
+#define HWCAP_PACA (1 << 30)
+#define HWCAP_PACG (1UL << 31)
diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
index 30ee7c8176..97cf16fc2d 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 29
+#define _DL_HWCAP_COUNT 32
#if !defined PROCINFO_DECL && defined SHARED
._dl_aarch64_cap_flags
@@ -69,7 +69,8 @@ PROCINFO_CLASS const char _dl_aarch64_cap_flags[_DL_HWCAP_COUNT][10]
= { "fp", "asimd", "evtstrm", "aes", "pmull", "sha1", "sha2", "crc32",
"atomics", "fphp", "asimdhp", "cpuid", "asimdrdm", "jscvt", "fcma",
"lrcpc", "dcpop", "sha3", "sm3", "sm4", "asimddp", "sha512", "sve",
- "asimdfhm", "dit", "uscat", "ilrcpc", "flagm", "ssbs" }
+ "asimdfhm", "dit", "uscat", "ilrcpc", "flagm", "ssbs", "sb", "paca",
+ "pacg" }
#endif
#if !defined SHARED || defined PROCINFO_DECL
;
--
Joseph S. Myers
joseph@codesourcery.com