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[src/trunk]: src/sys/arch/sun68k/stand Add a load script that puts text.unlik...



details:   https://anonhg.NetBSD.org/src/rev/4d9a67117faa
branches:  trunk
changeset: 325707:4d9a67117faa
user:      christos <christos%NetBSD.org@localhost>
date:      Fri Jan 03 21:21:17 2014 +0000

description:
Add a load script that puts text.unlikely after text so that the start
address stays where we are. This is copied from m68kelfnbsd.xbn

diffstat:

 sys/arch/sun68k/stand/Makefile.inc  |    7 +-
 sys/arch/sun68k/stand/boot.ldscript |  202 ++++++++++++++++++++++++++++++++++++
 2 files changed, 206 insertions(+), 3 deletions(-)

diffs (227 lines):

diff -r b21912862a5d -r 4d9a67117faa sys/arch/sun68k/stand/Makefile.inc
--- a/sys/arch/sun68k/stand/Makefile.inc        Fri Jan 03 21:12:18 2014 +0000
+++ b/sys/arch/sun68k/stand/Makefile.inc        Fri Jan 03 21:21:17 2014 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: Makefile.inc,v 1.21 2013/11/07 19:52:56 christos Exp $
+#      $NetBSD: Makefile.inc,v 1.22 2014/01/03 21:21:17 christos Exp $
 
 # Must have S=/usr/src/sys (or equivalent)
 # But note: this is w.r.t. a subdirectory
@@ -39,8 +39,9 @@
        ${OBJCOPY} --output-target=binary ${SA_PROG} $@
 
 ${SA_PROG} : ${OBJS} ${DPADD} ${SRTLIB}
-       ${LD} -N -Ttext ${RELOC} -e start ${SA_LDFLAGS} -o $@ \
-         ${SRTOBJ} ${OBJS} ${LDADD} ${SRTLIB}
+       ${LD} -N -Ttext ${RELOC} -e start ${SA_LDFLAGS} \
+           -T${.CURDIR}/../boot.ldscript -o $@ \
+           ${SRTOBJ} ${OBJS} ${LDADD} ${SRTLIB}
        @${SIZE} $@
 
 .if !target(proginstall)
diff -r b21912862a5d -r 4d9a67117faa sys/arch/sun68k/stand/boot.ldscript
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/sun68k/stand/boot.ldscript       Fri Jan 03 21:21:17 2014 +0000
@@ -0,0 +1,202 @@
+/* Script for -N: mix text and data on same page; don't align data */
+OUTPUT_FORMAT("elf32-m68k", "elf32-m68k",
+             "elf32-m68k")
+OUTPUT_ARCH(m68k)
+ENTRY(start)
+SEARCH_DIR("=/usr/lib");
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x14000)); . = SEGMENT_START("text-segment", 0x14000) + SIZEOF_HEADERS;
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+      FIXME: Why do we need it? When there is no .bss section, we don't
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+}



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