From: Florian Weimer <fweimer@redhat.com>
To: libc-alpha@sourceware.org
Subject: [PATCH 1/3] elf: Add hook for checking HWCAP bits after auxiliary vector parsing
Date: Thu, 06 May 2021 14:30:09 +0200 [thread overview]
Message-ID: <6904a5bfab71a7a8293d157e015bc55a7ce6f869.1620304013.git.fweimer@redhat.com> (raw)
In-Reply-To: <cover.1620304013.git.fweimer@redhat.com>
---
elf/dl-sysdep.c | 3 +++
sysdeps/generic/dl-hwcap-check.h | 28 ++++++++++++++++++++++++++++
2 files changed, 31 insertions(+)
create mode 100644 sysdeps/generic/dl-hwcap-check.h
diff --git a/elf/dl-sysdep.c b/elf/dl-sysdep.c
index bd5066fe3b..d47bef1340 100644
--- a/elf/dl-sysdep.c
+++ b/elf/dl-sysdep.c
@@ -46,6 +46,7 @@
#include <dl-tunables.h>
#include <dl-auxv.h>
+#include <dl-hwcap-check.h>
extern char **_environ attribute_hidden;
extern char _end[] attribute_hidden;
@@ -190,6 +191,8 @@ _dl_sysdep_start (void **start_argptr,
DL_PLATFORM_AUXV
}
+ dl_hwcap_check ();
+
#ifndef HAVE_AUX_SECURE
if (seen != -1)
{
diff --git a/sysdeps/generic/dl-hwcap-check.h b/sysdeps/generic/dl-hwcap-check.h
new file mode 100644
index 0000000000..8db7a86256
--- /dev/null
+++ b/sysdeps/generic/dl-hwcap-check.h
@@ -0,0 +1,28 @@
+/* Check for hardware capabilities after HWCAP parsing. Generic version.
+ Copyright (C) 2021 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _DL_HWCAP_CHECK_H
+#define _DL_HWCAP_CHECK_H
+
+static inline void
+dl_hwcap_check (void)
+{
+ /* The generic implementation does not perform any checks. */
+}
+
+#endif /* _DL_HWCAP_CHECK_H */
--
2.30.2
next prev parent reply other threads:[~2021-05-06 12:29 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 12:30 [PATCH 0/3] Checking HWCAP bits against compiler flags Florian Weimer
2021-05-06 12:30 ` Florian Weimer [this message]
2021-05-12 7:43 ` [PATCH 1/3] elf: Add hook for checking HWCAP bits after auxiliary vector parsing Stefan Liebler
2021-05-06 12:30 ` [PATCH 2/3] powerpc64le: Check HWCAP bits against compiler build flags Florian Weimer
2021-05-11 21:12 ` Lucas A. M. Magalhaes
2021-05-12 8:27 ` Florian Weimer
2021-05-12 14:50 ` Lucas A. M. Magalhaes
2021-05-12 14:52 ` Tulio Magno Quites Machado Filho
2021-05-12 17:27 ` Florian Weimer
2021-05-12 19:24 ` Tulio Magno Quites Machado Filho
2021-05-18 16:59 ` Florian Weimer
2021-05-18 17:26 ` Tulio Magno Quites Machado Filho
2021-05-18 17:41 ` Florian Weimer
2021-05-06 12:30 ` [PATCH 3/3] s390x: Check HWCAP bits against compiler flags Florian Weimer
2021-05-12 7:43 ` Stefan Liebler
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