From: "H.J. Lu" <hjl.tools@gmail.com>
To: libc-alpha@sourceware.org
Subject: [PATCH 0/3] x86: Add --enable-cet=permissive
Date: Tue, 28 Apr 2020 14:52:40 -0700 [thread overview]
Message-ID: <20200428215243.236312-1-hjl.tools@gmail.com> (raw)
When CET is enabled, it is an error to dlopen a non CET enabled shared
library in CET enabled application. It may be desirable to make CET
permissive, that is disable CET when dlopening a non CET enabled shared
library. With the new --enable-cet=permissive configure option, CET is
disabled when dlopening a non CET enabled shared library.
To support --enable-cet=permissive, CET_MAX is renamed to
CET_CONTROL_MASK and <dl-procruntime.c> is included in rtld.c to get
architecture specific initializer in rtld_global.
H.J. Lu (3):
CET: Rename CET_MAX to CET_CONTROL_MASK [BZ #25887]
rtld: Get architecture specific initializer in rtld_global
x86: Add --enable-cet=permissive
INSTALL | 26 +++++++++++--------
config.h.in | 3 +++
elf/rtld.c | 2 ++
manual/install.texi | 12 ++++++---
sysdeps/unix/sysv/linux/x86/Makefile | 2 +-
sysdeps/x86/Makefile | 18 +++++++++----
sysdeps/x86/cet-tunables.h | 22 ++++++++++++++--
sysdeps/x86/configure | 21 ++++++++-------
sysdeps/x86/configure.ac | 19 +++++++-------
sysdeps/x86/cpu-features.c | 7 +++--
sysdeps/x86/cpu-tunables.c | 39 +++++++++++-----------------
sysdeps/x86/dl-cet.c | 6 ++---
sysdeps/x86/dl-procruntime.c | 5 ++++
sysdeps/x86/tst-cet-legacy-5.c | 25 ++++++++++++------
sysdeps/x86/tst-cet-legacy-6.c | 25 ++++++++++++------
15 files changed, 141 insertions(+), 91 deletions(-)
--
2.25.4
next reply other threads:[~2020-04-28 21:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-28 21:52 H.J. Lu [this message]
2020-04-28 21:52 ` [PATCH 1/3] CET: Rename CET_MAX to CET_CONTROL_MASK [BZ #25887] H.J. Lu
2020-05-16 16:37 ` PING: " H.J. Lu
2020-05-16 17:27 ` Florian Weimer
2020-05-16 23:44 ` [PATCH] x86: Move CET control to _dl_x86_feature_control " H.J. Lu
2020-05-18 7:19 ` Florian Weimer
2020-05-18 12:26 ` V2 " H.J. Lu
2020-05-18 12:36 ` Florian Weimer
2020-04-28 21:52 ` [PATCH 2/3] rtld: Get architecture specific initializer in rtld_global H.J. Lu
2020-05-16 16:38 ` PING: " H.J. Lu
2020-05-16 17:51 ` Florian Weimer
2020-05-16 18:01 ` H.J. Lu
2020-05-16 18:07 ` Florian Weimer
2020-05-16 18:24 ` V2 [PATCH] " H.J. Lu
2020-04-28 21:52 ` [PATCH 3/3] x86: Add --enable-cet=permissive H.J. Lu
2020-04-29 17:19 ` [PATCH 0/3] " Adhemerval Zanella
2020-04-29 20:29 ` H.J. Lu
2020-04-29 20:46 ` Florian Weimer
2020-04-29 21:14 ` Adhemerval Zanella
2020-05-18 13:50 ` V2 [PATCH] " H.J. Lu
2020-05-18 14:43 ` Florian Weimer
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