[gcc r11-1962] aarch64: Fix noexecstack note in libgcc

[Szabolcs Nagy]

https://gcc.gnu.org/g:e73ec755489afc9fcc75dfac6f06ac73e243e72a

commit r11-1962-ge73ec755489afc9fcc75dfac6f06ac73e243e72a
Author: Szabolcs Nagy <szabolcs.nagy@arm.com>
Date:   Fri Jul 3 14:11:49 2020 +0100

    aarch64: Fix noexecstack note in libgcc
    
    lse.S did not have GNU stack note, this may cause missing
    PT_GNU_STACK in binaries on Linux and FreeBSD.
    
    2020-07-09  Szabolcs Nagy  <szabolcs.nagy@arm.com>
    
    libgcc/ChangeLog:
    
            * config/aarch64/lse.S: Add stack note.

Diff:
---
 libgcc/config/aarch64/lse.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libgcc/config/aarch64/lse.S b/libgcc/config/aarch64/lse.S
index f3ccf5cf543..9e2acae806b 100644
--- a/libgcc/config/aarch64/lse.S
+++ b/libgcc/config/aarch64/lse.S
@@ -274,3 +274,7 @@ STARTFN	NAME(LDNM)
 
 ENDFN	NAME(LDNM)
 #endif
+
+#if defined(__linux__) || defined(__FreeBSD__)
+.section .note.GNU-stack, "", %progbits
+#endif