[src/trunk]: src/sys/arch/macppc/stand Quash .eh_frame unwind tables in boot ...

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

details:   https://anonhg.NetBSD.org/src/rev/9374444d0e21
branches:  trunk
changeset: 353121:9374444d0e21
user:      uwe <uwe%NetBSD.org@localhost>
date:      Thu Apr 20 19:09:29 2017 +0000

description:
Quash .eh_frame unwind tables in boot code.

diffstat:

 sys/arch/macppc/stand/Makefile.inc     |   7 ++++++-
 sys/arch/macppc/stand/bootxx/Makefile  |   4 +++-
 sys/arch/macppc/stand/ofwboot/Makefile |  15 ++++++++++-----
 3 files changed, 19 insertions(+), 7 deletions(-)

diffs (88 lines):

diff -r 34e577349db0 -r 9374444d0e21 sys/arch/macppc/stand/Makefile.inc
--- a/sys/arch/macppc/stand/Makefile.inc        Thu Apr 20 18:53:12 2017 +0000
+++ b/sys/arch/macppc/stand/Makefile.inc        Thu Apr 20 19:09:29 2017 +0000
@@ -1,3 +1,8 @@
-#      $NetBSD: Makefile.inc,v 1.3 2000/02/07 16:26:59 tsubai Exp $
+#      $NetBSD: Makefile.inc,v 1.4 2017/04/20 19:09:29 uwe Exp $
 
 BINDIR=                /usr/mdec
+
+CFLAGS_UNWIND.gcc=     -fno-unwind-tables -fno-asynchronous-unwind-tables
+CFLAGS_UNWIND.clang=   -fno-unwind-tables
+
+LINKFLAGS_UNWIND=      --no-ld-generated-unwind-info
diff -r 34e577349db0 -r 9374444d0e21 sys/arch/macppc/stand/bootxx/Makefile
--- a/sys/arch/macppc/stand/bootxx/Makefile     Thu Apr 20 18:53:12 2017 +0000
+++ b/sys/arch/macppc/stand/bootxx/Makefile     Thu Apr 20 19:09:29 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.15 2014/08/10 17:44:26 joerg Exp $
+#      $NetBSD: Makefile,v 1.16 2017/04/20 19:09:29 uwe Exp $
 
 S!=    cd ${.CURDIR}/../../../..; pwd
 
@@ -14,9 +14,11 @@
 
 CFLAGS=                -Os -Wall -ffreestanding
 CFLAGS+=       ${${ACTIVE_CC} == "gcc":? -msoft-float :}
+CFLAGS+=       ${CFLAGS_UNWIND.${ACTIVE_CC}}
 CPPFLAGS+=     -D_STANDALONE -DPPC_OEA -I${.OBJDIR} -I${S}
 STRIPFLAG=
 LINKFLAGS=     -x -N -Ttext 4000 -e _start
+LINKFLAGS+=    ${LINKFLAGS_UNWIND}
 CLEANFILES+=   ${PROG}.sym
 
 ${PROG}: ${OBJS}
diff -r 34e577349db0 -r 9374444d0e21 sys/arch/macppc/stand/ofwboot/Makefile
--- a/sys/arch/macppc/stand/ofwboot/Makefile    Thu Apr 20 18:53:12 2017 +0000
+++ b/sys/arch/macppc/stand/ofwboot/Makefile    Thu Apr 20 19:09:29 2017 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile,v 1.57 2017/04/20 18:39:28 uwe Exp $
+#      $NetBSD: Makefile,v 1.58 2017/04/20 19:09:29 uwe Exp $
 
 S=     ${.CURDIR}/../../../..
 
@@ -9,6 +9,7 @@
 XCOFFXTRAOBJ=  Xcoffxtra.o
 CFLAGS+=       -ffreestanding
 CFLAGS+=       ${${ACTIVE_CC} == "gcc":? -msoft-float :}
+CFLAGS+=       ${CFLAGS_UNWIND.${ACTIVE_CC}}
 CFLAGS+=       -Wall -Wmissing-prototypes -Wstrict-prototypes -Wpointer-arith
 #CPPFLAGS+=    -DDEBUG -DNETIF_DEBUG
 CPPFLAGS+=     -D_STANDALONE -DSUPPORT_DHCP
@@ -55,6 +56,9 @@
 CPPFLAGS+=     -DRELOC=0x${RELOC} -DRELOC_FLATFILE=0x${RELOC_FLATFILE}
 #CPPFLAGS+=    -DXCOFF_GLUE            # for booting PCI Powermacs
 
+LINKFLAGS=     -N -Ttext ${RELOC} -Bstatic
+LINKFLAGS+=    ${LINKFLAGS_UNWIND}
+
 ### find out what to use for libkern
 KERN_AS=       library
 .include "${S}/lib/libkern/Makefile.inc"
@@ -82,7 +86,7 @@
 
 ${PROG}: ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN} 
        ${_MKTARGET_LINK}
-       ${LD} -s -N -Ttext ${RELOC} -Bstatic -o ${PROG}.el1 \
+       ${LD} -s -o ${PROG}.el1 ${LINKFLAGS} \
            ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN}
        ${OBJCOPY} -O binary ${PROG}.el1 ${PROG}
 
@@ -91,13 +95,14 @@
 
 ${PROG}.elf: ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN}
        ${_MKTARGET_LINK}
-       ${LD} -s -N -Ttext ${RELOC} -Bstatic -o ${PROG}.elf \
+       ${LD} -s -o ${PROG}.elf ${LINKFLAGS} \
            ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN}
 
 ${PROG}.xcf: ${OBJS} ${XCOFFXTRAOBJ} ${LIBSA} ${LIBZ} ${LIBKERN}
        ${_MKTARGET_LINK}
-       ${LD} -N -T ${.CURDIR}/../fixcoff/elf32_powerpc_merge.x -e _entry \
-           -Ttext ${RELOC} -Bstatic -o ${PROG}.mrg  ${XCOFFXTRAOBJ} \
+       ${LD} -o ${PROG}.mrg ${LINKFLAGS} \
+           -T ${.CURDIR}/../fixcoff/elf32_powerpc_merge.x \
+           -e _entry ${XCOFFXTRAOBJ} \
            ${OBJS} ${LIBSA} ${LIBZ} ${LIBKERN}
        ${OBJCOPY} -O aixcoff-rs6000 -R .comment -R .note \
            ${PROG}.mrg ${PROG}.xcf