From bbfb54930cdd85269504a34b362e77a3ac2a207a Mon Sep 17 00:00:00 2001
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Wed, 3 Jan 2024 12:09:23 -0800
Subject: 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>
---
 sysdeps/x86/configure | 70 ---------------------------------------------------
 1 file changed, 70 deletions(-)

(limited to 'sysdeps/x86/configure')

diff --git a/sysdeps/x86/configure b/sysdeps/x86/configure
index a2f9a7c2c6..1f4c2d67fd 100644
--- a/sysdeps/x86/configure
+++ b/sysdeps/x86/configure
@@ -1,76 +1,6 @@
 # This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/x86.
 
-if test $enable_cet != no; then
-  # Check if CET can be enabled.
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether CET can be enabled" >&5
-printf %s "checking whether CET can be enabled... " >&6; }
-if test ${libc_cv_x86_cet_available+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.c <<EOF
-#if !defined __CET__ || __CET__ != 3
-# error CET isn't available.
-#endif
-EOF
-		 if { ac_try='${CC-cc} -c $CFLAGS -fcf-protection -include cet.h conftest.c 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-		   libc_cv_x86_cet_available=yes
-		 else
-		   libc_cv_x86_cet_available=no
-		 fi
-		 rm -rf conftest*
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_available" >&5
-printf "%s\n" "$libc_cv_x86_cet_available" >&6; }
-  if test $libc_cv_x86_cet_available != yes; then
-    as_fn_error $? "$CC doesn't support CET" "$LINENO" 5
-  fi
-fi
-if test $enable_cet != no; then
-  # Check if assembler supports CET.
-  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether assembler supports CET" >&5
-printf %s "checking whether assembler supports CET... " >&6; }
-if test ${libc_cv_x86_cet_as+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  cat > conftest.s <<EOF
-	incsspd %ecx
-EOF
-		 if { ac_try='${CC-cc} -c $CFLAGS conftest.s -o conftest.o 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-		   libc_cv_x86_cet_as=yes
-		 else
-		   libc_cv_x86_cet_as=no
-		 fi
-		 rm -rf conftest*
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_x86_cet_as" >&5
-printf "%s\n" "$libc_cv_x86_cet_as" >&6; }
-  if test $libc_cv_x86_cet_as = no; then
-    as_fn_error $? "$AS doesn't support CET" "$LINENO" 5
-  fi
-fi
-if test $enable_cet = yes; then
-  printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_elf_property" >>confdefs.h
-
-elif test $enable_cet = permissive; then
-  printf "%s\n" "#define DEFAULT_DL_X86_CET_CONTROL cet_permissive" >>confdefs.h
-
-fi
-config_vars="$config_vars
-enable-cet = $enable_cet"
-
 # Check if linker supports x86 ISA level.
 { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for linker x86 ISA level support" >&5
 printf %s "checking for linker x86 ISA level support... " >&6; }
-- 
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