From e6918187568dbd01842d8d1d2c808ce16a894239 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 21 Apr 2024 13:54:28 +0200
Subject: Adding upstream version 18.2.2.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/arch/arm.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100644 src/arch/arm.c

(limited to 'src/arch/arm.c')

diff --git a/src/arch/arm.c b/src/arch/arm.c
new file mode 100644
index 000000000..02f0107b7
--- /dev/null
+++ b/src/arch/arm.c
@@ -0,0 +1,37 @@
+#include "acconfig.h"
+#include "arch/probe.h"
+
+/* flags we export */
+int ceph_arch_neon = 0;
+int ceph_arch_aarch64_crc32 = 0;
+int ceph_arch_aarch64_pmull = 0;
+
+#include <stdio.h>
+
+#if __linux__
+
+#include <elf.h>
+#include <link.h> // ElfW macro
+#include <sys/auxv.h>
+
+#if __arm__ || __aarch64__
+#include <asm/hwcap.h>
+#endif // __arm__
+
+#endif // __linux__
+
+int ceph_arch_arm_probe(void)
+{
+#if __linux__
+	unsigned long hwcap = getauxval(AT_HWCAP);
+#if __arm__
+	ceph_arch_neon = (hwcap & HWCAP_NEON) == HWCAP_NEON;
+#elif __aarch64__
+	ceph_arch_neon = (hwcap & HWCAP_ASIMD) == HWCAP_ASIMD;
+	ceph_arch_aarch64_crc32 = (hwcap & HWCAP_CRC32) == HWCAP_CRC32;
+	ceph_arch_aarch64_pmull = (hwcap & HWCAP_PMULL) == HWCAP_PMULL;
+#endif
+#endif // __linux__
+	return 0;
+}
+
-- 
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