From a8af871e29c6c922c4c3aeb94697ab958fc12e9b Mon Sep 17 00:00:00 2001 From: Yuta Saito Date: Wed, 27 Dec 2023 06:22:45 +0000 Subject: [PATCH] [Bug #20085] Use consistent default options for `-mbranch-protection` We need to use the same options for both C compiler and assembler when `-mbranch-protection` is guessed by configure. Otherwise, `coroutine/arm64/Context.{h,S}` will use incompatible PAC strategies. --- configure.ac | 3 +++ 1 file changed, 3 insertions(+) diff --git a/configure.ac b/configure.ac index 9286946fc15f4..18b4247991d42 100644 --- a/configure.ac +++ b/configure.ac @@ -830,7 +830,10 @@ AS_IF([test "$GCC" = yes], [ AS_FOR(option, opt, [-mbranch-protection=pac-ret -msign-return-address=all], [ RUBY_TRY_CFLAGS(option, [branch_protection=yes], [branch_protection=no]) AS_IF([test "x$branch_protection" = xyes], [ + # C compiler and assembler must be consistent for -mbranch-protection + # since they both check `__ARM_FEATURE_PAC_DEFAULT` definition. RUBY_APPEND_OPTION(XCFLAGS, option) + RUBY_APPEND_OPTION(ASFLAGS, option) break ]) ])