1 files changed, 0 insertions, 52 deletions
@@ -1006,58 +1006,6 @@ AC_SUBST(incflags, "$INCFLAGS")
 test -z "${ac_env_CFLAGS_set}" -a -n "${cflags+set}" && eval CFLAGS="\"$cflags $ARCH_FLAG\""
 test -z "${ac_env_CXXFLAGS_set}" -a -n "${cxxflags+set}" && eval CXXFLAGS="\"$cxxflags $ARCH_FLAG\""
-# The lines above expand out the $cflags/$optflags/$debugflags/$hardenflags variables into the
-# CFLAGS variable. So, at this point, we have a $CFLAGS var with the actual compiler flags we're
-# going to use.
-# That means this is the right time to check what branch protection flags are going to be in use
-# and define appropriate macros for use in Context.S based on this
-AS_CASE(["$target_cpu"], [aarch64], [
- AC_CACHE_CHECK([whether __ARM_FEATURE_BTI_DEFAULT is defined],
- rb_cv_aarch64_bti_enabled,
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([[
- @%:@ifndef __ARM_FEATURE_BTI_DEFAULT
- @%:@error "__ARM_FEATURE_BTI_DEFAULT not defined"
- @%:@endif
- ]])],
- [rb_cv_aarch64_bti_enabled=yes],
- [rb_cv_aarch64_bti_enabled=no])
- )
- AS_IF([test "$rb_cv_aarch64_bti_enabled" = yes],
- AC_DEFINE(RUBY_AARCH64_BTI_ENABLED, 1))
- AC_CACHE_CHECK([whether __ARM_FEATURE_PAC_DEFAULT is defined],
- rb_cv_aarch64_pac_enabled,
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([[
- @%:@ifndef __ARM_FEATURE_PAC_DEFAULT
- @%:@error "__ARM_FEATURE_PAC_DEFAULT not defined"
- @%:@endif
- ]])],
- [rb_cv_aarch64_pac_enabled=yes],
- [rb_cv_aarch64_pac_enabled=no])
- )
- AS_IF([test "$rb_cv_aarch64_pac_enabled" = yes],
- AC_DEFINE(RUBY_AARCH64_PAC_ENABLED, 1))
- # Context.S will only ever sign its return address with the A-key; it doesn't support
- # the B-key at the moment.
- AS_IF([test "$rb_cv_aarch64_pac_enabled" = yes], [
- AC_CACHE_CHECK([whether __ARM_FEATURE_PAC_DEFAULT specifies the b-key bit 0x02],
- rb_cv_aarch64_pac_b_key,
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM([[
- @%:@ifdef __ARM_FEATURE_PAC_DEFAULT
- @%:@if __ARM_FEATURE_PAC_DEFAULT & 0x02
- @%:@error "__ARM_FEATURE_PAC_DEFAULT specifies B key"
- @%:@endif
- @%:@endif
- ]])],
- [rb_cv_aarch64_pac_b_key=no],
- [rb_cv_aarch64_pac_b_key=yes])
- )
- AS_IF([test "$rb_cv_aarch64_pac_b_key" = yes],
- AC_MSG_ERROR(-mbranch-protection flag specified b-key but Ruby's Context.S does not support this yet.))
- ])
-])
 AC_CACHE_CHECK([whether compiler has statement and declarations in expressions],
 rb_cv_have_stmt_and_decl_in_expr,