diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2024-01-03 12:09:23 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-01-04 06:08:55 -0800 |
| commit | bbfb54930cdd85269504a34b362e77a3ac2a207a (patch) | |
| tree | 1e6790858eae27d2762760ca2a3315db2afa8f17 /manual | |
| parent | 0d4a2f3576ebd92ca0001645a533bf70289f264e (diff) | |
| download | glibc-bbfb54930cdd85269504a34b362e77a3ac2a207a.tar.gz glibc-bbfb54930cdd85269504a34b362e77a3ac2a207a.tar.xz glibc-bbfb54930cdd85269504a34b362e77a3ac2a207a.zip | |
i386: Ignore --enable-cet
Since shadow stack is only supported for x86-64, ignore --enable-cet for i386. Always setting $(enable-cet) for i386 to "no" to support ifneq ($(enable-cet),no) in x86 Makefiles. We can't use ifeq ($(enable-cet),yes) since $(enable-cet) can be "yes", "no" or "permissive". Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/install.texi | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/manual/install.texi b/manual/install.texi index ac5310731b..f752f6489d 100644 --- a/manual/install.texi +++ b/manual/install.texi @@ -169,17 +169,14 @@ Enable Intel Control-flow Enforcement Technology (CET) support. When is protected with indirect branch tracking (IBT) and shadow stack (SHSTK)@. When CET is enabled, @theglibc{} is compatible with all existing executables and shared libraries. This feature is currently -supported on i386, x86_64 and x32 with GCC 8 and binutils 2.29 or later. -Note that when CET is enabled, @theglibc{} requires CPUs capable of -multi-byte NOPs, like x86-64 processors as well as Intel Pentium Pro or -newer. With @option{--enable-cet}, it is an error to dlopen a non CET +supported on x86_64 and x32 with GCC 8 and binutils 2.29 or later. +With @option{--enable-cet}, it is an error to dlopen a non CET enabled shared library in CET enabled application. With @option{--enable-cet=permissive}, CET is disabled when dlopening a non CET enabled shared library in CET enabled application. -NOTE: @option{--enable-cet} has been tested for i686, x86_64 and x32 -on non-CET processors. @option{--enable-cet} has been tested for -i686, x86_64 and x32 on CET processors. +NOTE: @option{--enable-cet} has been tested for x86_64 and x32 +on non-CET and CET processors. @item --enable-memory-tagging Enable memory tagging support if the architecture supports it. When |