toolchain-glibc.eclass: disable stack protector on m68k

setjmp() clobbers 'a5' register by stack protector prologue.

Bug: https://sourceware.org/PR24202
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

diff --git a/eclass/toolchain-glibc.eclass b/eclass/toolchain-glibc.eclass
index 6698f2045e22306a251a687a60f4a65af73575f9..81d494c6fd536bcf2c644fba6a6c0a8c409008e0 100644 (file)
--- a/eclass/toolchain-glibc.eclass
+++ b/eclass/toolchain-glibc.eclass
@@ -842,6 +842,11 @@ glibc_do_configure() {
 
        if version_is_at_least 2.25 ; then
                case ${CTARGET} in
+                       m68k*)
+                               # setjmp() is not compatible with stack protection:
+                               # https://sourceware.org/PR24202
+                               myconf+=( --enable-stack-protector=no )
+                               ;;
                        mips*)
                                # dlopen() detects stack smash on mips n32 ABI.
                                # Cause is unknown: https://bugs.gentoo.org/640130