[src/trunk]: src/lib Explicitly use -fcommon for globals shared between libc ...

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

details:   https://anonhg.NetBSD.org/src/rev/282a08ef024c
branches:  trunk
changeset: 1009402:282a08ef024c
user:      joerg <joerg%NetBSD.org@localhost>
date:      Wed Apr 22 23:32:25 2020 +0000

description:
Explicitly use -fcommon for globals shared between libc and CSU.

diffstat:

 lib/csu/Makefile           |  4 +++-
 lib/libc/gen/Makefile.inc  |  6 +++++-
 lib/libc/misc/Makefile.inc |  5 ++++-
 3 files changed, 12 insertions(+), 3 deletions(-)

diffs (51 lines):

diff -r b4e519f03f2f -r 282a08ef024c lib/csu/Makefile
--- a/lib/csu/Makefile  Wed Apr 22 22:56:12 2020 +0000
+++ b/lib/csu/Makefile  Wed Apr 22 23:32:25 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.39 2019/01/27 04:35:25 dholland Exp $
+#      $NetBSD: Makefile,v 1.40 2020/04/22 23:32:25 joerg Exp $
 
 NOLIBCSANITIZER=       # defined
 NOSANITIZER=           # defined
@@ -18,6 +18,8 @@
 .error Architecture (${CSU_MACHINE_ARCH} or ${CSU_MACHINE_CPU}) unsupported
 .endif
 
+# Ownership of globals from crt0.o is shared with libc for historic reasons
+COPTS+=                -fcommon
 
 .PATH: ${ARCHDIR}
 .include "${ARCHDIR}/Makefile.inc"
diff -r b4e519f03f2f -r 282a08ef024c lib/libc/gen/Makefile.inc
--- a/lib/libc/gen/Makefile.inc Wed Apr 22 22:56:12 2020 +0000
+++ b/lib/libc/gen/Makefile.inc Wed Apr 22 23:32:25 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.inc,v 1.200 2017/09/09 18:18:28 kamil Exp $
+#      $NetBSD: Makefile.inc,v 1.201 2020/04/22 23:32:25 joerg Exp $
 #      from: @(#)Makefile.inc  8.6 (Berkeley) 5/4/95
 
 # gen sources
@@ -203,3 +203,7 @@
        ${TOOL_AWK} -f ${.ALLSRC} > ${.TARGET}
 
 CLEANFILES+= errlist.c
+
+# Ownership of globals from crt0.o is shared with libc for historic reasons.
+# __progname is also necessary as global here for the nbcompat case.
+COPTS.getprogname.c+=  -fcommon
diff -r b4e519f03f2f -r 282a08ef024c lib/libc/misc/Makefile.inc
--- a/lib/libc/misc/Makefile.inc        Wed Apr 22 22:56:12 2020 +0000
+++ b/lib/libc/misc/Makefile.inc        Wed Apr 22 23:32:25 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.inc,v 1.3 2018/08/03 04:29:35 kamil Exp $
+#      $NetBSD: Makefile.inc,v 1.4 2020/04/22 23:32:25 joerg Exp $
 #      @(#)Makefile.inc        8.3 (Berkeley) 10/24/94
 
 .PATH: ${ARCHDIR}/misc ${.CURDIR}/misc
@@ -13,3 +13,6 @@
 
 # for -fstack-protector
 SRCS+= stack_protector.c
+
+# Ownership of globals from crt0.o is shared with libc for historic reasons
+COPTS.initfini.c+=             -fcommon