[src/trunk]: src/external/gpl3/gdb/lib/libgdb Apply hack for GDB 8.3 on arm t...

[rin <rin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/d77f4e7c025a
branches:  trunk
changeset: 1014947:d77f4e7c025a
user:      rin <rin%NetBSD.org@localhost>
date:      Thu Oct 08 08:32:57 2020 +0000

description:
Apply hack for GDB 8.3 on arm to GDB 11.

XXX
Not tested as GDB 11 does not build for arm at the moment.

Note that dist/gdb/dwarf2foo.c was renamed to dist/gdb/dwarf2/foo.c.

diffstat:

 external/gpl3/gdb/lib/libgdb/Makefile |  17 ++++++++++-------
 1 files changed, 10 insertions(+), 7 deletions(-)

diffs (31 lines):

diff -r 66d0c8d7db6d -r d77f4e7c025a external/gpl3/gdb/lib/libgdb/Makefile
--- a/external/gpl3/gdb/lib/libgdb/Makefile     Thu Oct 08 08:31:37 2020 +0000
+++ b/external/gpl3/gdb/lib/libgdb/Makefile     Thu Oct 08 08:32:57 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.27 2020/09/17 16:36:38 christos Exp $
+#      $NetBSD: Makefile,v 1.28 2020/10/08 08:32:57 rin Exp $
 
 NOCTF=
 HOSTPROG_CXX=   1
@@ -59,12 +59,15 @@
 
 ada-exp.c: ada-lex.c
 
-.if defined(HAVE_GCC) && ${HAVE_GCC} >= 8 && ${ACTIVE_CC} == "gcc"
-.if !empty(MACHINE_ARCH:Mearmv7hf*)
-# GCC 8.4 miscompiles this with -O2 or -O1 for earmv7hf{,eb}.
-# Neither earmv6hf{,eb} nor earmv7{,eb} are affected.
-COPTS.dwarf2expr.c+=-O0
-.endif
+.if ${MACHINE_CPU} == "arm"
+. if ${ACTIVE_CC} == "gcc" && ${HAVE_GCC:U0} >= 8
+# XXX taken from GDB 8.3; not tested for GDB 11:
+# GCC 8.4/9.3 miscompile this with -O[21] for earmv7hf{,eb}.
+# GCC 9.3 miscompile this with -O2 for earmv5hf{,eb}.
+COPTS.expr.c+= -O0
+# GCC 9.3 miscompile this with -O2 for earmv5hf{,eb}.
+COPTS.loc.c+=  -O0
+. endif
 .endif
 
 # These are generated by implicit rules and are not easy to generate