summaryrefslogtreecommitdiff
path: root/CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c
diff options
context:
space:
mode:
authorPeter Jones <pjones@redhat.com>2018-10-08 13:31:30 -0400
committerPeter Jones <pjones@redhat.com>2018-10-09 17:50:01 -0400
commitb86e8e7e9c4d4191d556a52fbd2c3e614ddb246e (patch)
treeca28062a443b69ba44c28ad01c31f522c0e12992 /CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c
parent6dfae5e78b327f4671f10e85a42c94cad9064bd6 (diff)
downloadefi-boot-shim-openssl-rebase-helper-start.tar.gz
efi-boot-shim-openssl-rebase-helper-start.zip
Add CryptoPkg/Library/BaseCryptLib/ and CryptoPkg/Library/OpensslLib/openssl-rebase-helper-start
Diffstat (limited to 'CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c')
-rw-r--r--CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c b/CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c
new file mode 100644
index 00000000..272c5517
--- /dev/null
+++ b/CryptoPkg/Library/OpensslLib/openssl/crypto/s390xcap.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <setjmp.h>
+#include <signal.h>
+
+unsigned long long OPENSSL_s390xcap_P[10];
+
+static sigjmp_buf ill_jmp;
+static void ill_handler(int sig)
+{
+ siglongjmp(ill_jmp, sig);
+}
+
+unsigned long OPENSSL_s390x_facilities(void);
+
+void OPENSSL_cpuid_setup(void)
+{
+ sigset_t oset;
+ struct sigaction ill_act, oact;
+
+ if (OPENSSL_s390xcap_P[0])
+ return;
+
+ OPENSSL_s390xcap_P[0] = 1UL << (8 * sizeof(unsigned long) - 1);
+
+ memset(&ill_act, 0, sizeof(ill_act));
+ ill_act.sa_handler = ill_handler;
+ sigfillset(&ill_act.sa_mask);
+ sigdelset(&ill_act.sa_mask, SIGILL);
+ sigdelset(&ill_act.sa_mask, SIGTRAP);
+ sigprocmask(SIG_SETMASK, &ill_act.sa_mask, &oset);
+ sigaction(SIGILL, &ill_act, &oact);
+
+ /* protection against missing store-facility-list-extended */
+ if (sigsetjmp(ill_jmp, 1) == 0)
+ OPENSSL_s390x_facilities();
+
+ sigaction(SIGILL, &oact, NULL);
+ sigprocmask(SIG_SETMASK, &oset, NULL);
+}