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i386: Fail if configured with --enable-cet
Since it is only supported for x86_64. Checked on i686-linux-gnu.
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3
INSTALL
3
INSTALL
@ -147,8 +147,7 @@ if ‘CFLAGS’ is specified it must enable optimization. For example:
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‘--enable-cet=permissive’, CET is disabled when dlopening a non CET
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enabled shared library in CET enabled application.
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NOTE: ‘--enable-cet’ has been tested for x86_64 and x32 on non-CET
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and CET processors.
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NOTE: ‘--enable-cet’ is only supported on x86_64 and x32.
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‘--enable-memory-tagging’
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Enable memory tagging support if the architecture supports it.
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4
NEWS
4
NEWS
@ -9,8 +9,8 @@ Version 2.39
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Major new features:
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* Sync with Linux kernel 6.6 shadow stack interface. Since only x86-64
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is supported, --enable-cet is ignored for i386.
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* Sync with Linux kernel 6.6 shadow stack interface. The --enable-cet
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configure option in only supported on x86-64.
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* struct statvfs now has an f_type member, equal to the f_type statfs member;
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on the Hurd this was always available under a reserved name,
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@ -175,8 +175,7 @@ enabled shared library in CET enabled application. With
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@option{--enable-cet=permissive}, CET is disabled when dlopening a
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non CET enabled shared library in CET enabled application.
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NOTE: @option{--enable-cet} has been tested for x86_64 and x32
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on non-CET and CET processors.
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NOTE: @option{--enable-cet} is only supported on x86_64 and x32.
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@item --enable-memory-tagging
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Enable memory tagging support if the architecture supports it. When
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8
sysdeps/i386/configure
vendored
8
sysdeps/i386/configure
vendored
@ -1,10 +1,10 @@
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# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
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# Local configure fragment for sysdeps/i386.
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# CET is only supported for x86-64. Set enable-cet to "no" to allow
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# "ifneq ($(enable-cet),no)" in x86 Makefiles.
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config_vars="$config_vars
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enable-cet = "no""
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# CET is only supported for x86-64.
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if test $enable_cet != no; then
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as_fn_error $? "\"CET is only supported on x86_64 or x32\"" "$LINENO" 5
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fi
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# We no longer support i386 since it lacks the atomic instructions
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# required to implement NPTL threading.
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@ -1,9 +1,10 @@
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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
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# Local configure fragment for sysdeps/i386.
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# CET is only supported for x86-64. Set enable-cet to "no" to allow
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# "ifneq ($(enable-cet),no)" in x86 Makefiles.
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LIBC_CONFIG_VAR([enable-cet], ["no"])
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# CET is only supported for x86-64.
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if test $enable_cet != no; then
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AC_MSG_ERROR(["CET is only supported on x86_64 or x32"])
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fi
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# We no longer support i386 since it lacks the atomic instructions
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# required to implement NPTL threading.
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