On Thu, Apr 12, 2018 at 6:21 AM, H.J. Lu <hongjiu...@intel.com> wrote: > Program received signal SIGSEGV, Segmentation fault. > __stack_split_initialize () > at /export/gnu/import/git/sources/gcc/libgcc/config/i386/morestack.S:751 > 751 leaq -16000(%rsp),%rax # We should have at least 16K. > Missing separate debuginfos, use: dnf debuginfo-install > libgcc-8.0.1-0.21.0.fc28.x86_64 > (gdb) disass > Dump of assembler code for function __stack_split_initialize: > => 0x0000000000402858 <+0>: lea -0x3e80(%rsp),%rax > 0x0000000000402860 <+8>: mov %rax,%fs:0x70 > 0x0000000000402869 <+17>: sub $0x8,%rsp > 0x000000000040286d <+21>: mov %rsp,%rdi > 0x0000000000402870 <+24>: mov $0x3e80,%esi > 0x0000000000402875 <+29>: callq 0x401810 > <__generic_morestack_set_initial_sp> > 0x000000000040287a <+34>: add $0x8,%rsp > 0x000000000040287e <+38>: retq > End of assembler dump. > (gdb) > > This patch adds the missing ENDBR to __stack_split_initialize. > > OK for trunk? > > H.J. > --- > PR libgcc/85379 > * config/i386/morestack.S (__stack_split_initialize): Add > _CET_ENDBR. > --- > libgcc/config/i386/morestack.S | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S > index eca441a2867..99e65eaaff4 100644 > --- a/libgcc/config/i386/morestack.S > +++ b/libgcc/config/i386/morestack.S > @@ -730,6 +730,7 @@ __morestack_large_model: > #endif > > __stack_split_initialize: > + _CET_ENDBR > > #ifndef __x86_64__ > > -- > 2.14.3 >
PING. -- H.J.