From ce7d4b0d57a1d6897faabee401ae94ab592f801f Mon Sep 17 00:00:00 2001
From: Ian Lance Taylor <ian@airs.com>
Date: Thu, 4 Mar 1993 20:49:26 +0000
Subject: [PATCH] 	* mips.sc-sh: Added variables which may be overridden
 by a 	specific emulation. 	* mipsidt.sh: New file; emulation for IDT MIPS
 board. 	* Makefile.in (ALL_EMULATIONS): Added em_mipsidt.o. 
 (em_mipsidt.c): New target.  Uses mipsidt.sh and mips.sc-sh. 	*
 config/mips-idt.mt: New file; sets EMUL to mipsidt. 	* configure.in
 (mips-idt-ecoff): New target; uses mips-idt.

---
 ld/.Sanitize          | 12 +++++++++++-
 ld/Makefile.in        |  5 ++++-
 ld/config/.Sanitize   |  1 +
 ld/config/mips-idt.mt |  1 +
 ld/mips.sc-sh         | 16 +++++++++++-----
 ld/mipsidt.sh         |  9 +++++++++
 6 files changed, 37 insertions(+), 7 deletions(-)
 create mode 100644 ld/config/mips-idt.mt
 create mode 100644 ld/mipsidt.sh

diff --git a/ld/.Sanitize b/ld/.Sanitize
index e5c729e7334..3ecc8edde8d 100644
--- a/ld/.Sanitize
+++ b/ld/.Sanitize
@@ -108,6 +108,7 @@ m88kbcs.sh
 mips.sc-sh
 mipsbig.sh
 mipsbsd.sh
+mipsidt.sh
 mipslit.sh
 mri.c
 mri.h
@@ -161,7 +162,16 @@ fi
 #
 #
 # $Log$
-# Revision 1.52  1993/02/28 14:42:15  raeburn
+# Revision 1.53  1993/03/04 20:49:05  ian
+# 	* mips.sc-sh: Added variables which may be overridden by a
+# 	specific emulation.
+# 	* mipsidt.sh: New file; emulation for IDT MIPS board.
+# 	* Makefile.in (ALL_EMULATIONS): Added em_mipsidt.o.
+# 	(em_mipsidt.c): New target.  Uses mipsidt.sh and mips.sc-sh.
+# 	* config/mips-idt.mt: New file; sets EMUL to mipsidt.
+# 	* configure.in (mips-idt-ecoff): New target; uses mips-idt.
+#
+# Revision 1.52  1993/02/28  14:42:15  raeburn
 # mips-bsd and 386bsd support
 #
 # Revision 1.51  1993/02/26  18:53:13  dje
diff --git a/ld/Makefile.in b/ld/Makefile.in
index e0dad2d3b92..8b64bc82452 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -120,7 +120,7 @@ ALL_EMULATIONS=em_lnk960.o em_sun3.o em_i386aout.o em_go32.o \
 	em_h8300hms.o em_ebmon29k.o em_sun4.o em_gld960.o \
 	em_m68kcoff.o em_h8300xray.o em_st2000.o em_sa29200.o \
 	em_vanilla.o em_i386coff.o em_z8ksim.o em_mipslit.o em_i386bsd.o \
-	em_mipsbig.o em_mipsbsd.o
+	em_mipsbig.o em_mipsbsd.o em_mipsidt.o
 
 EMULATION_OFILES=${ALL_EMULATIONS}
 #EMULATION_OFILES=em_${EMUL}.o ${OTHER_EMULATIONS}
@@ -268,6 +268,9 @@ em_mipsbig.c:  $(srcdir)/mipsbig.sh \
 em_mipsbsd.c: $(srcdir)/mipsbsd.sh \
   $(srcdir)/generic.em $(srcdir)/aout.sc-sh ${GEN_DEPENDS}
 	${GENSCRIPTS} mipsbsd.sh
+em_mipsidt.c: $(srcdir)/mipsidt.sh \
+  $(srcdir)/generic.em $(srcdir)/mips.sc-sh ${GEN_DEPENDS}
+	${GENSCRIPTS} mipsidt.sh
 
 $(LD_PROG): $(OFILES) $(BFDLIB) $(LIBIBERTY)
 	$(CC) $(CFLAGS) $(INCLUDES) $(HDEFINES) $(TDEFINES) $(CDEFINES) $(LDFLAGS) -o $(LD_PROG) $(OFILES) $(BFDLIB) $(LIBIBERTY) $(LOADLIBES)
diff --git a/ld/config/.Sanitize b/ld/config/.Sanitize
index 756ef0f8488..42495a0f31f 100644
--- a/ld/config/.Sanitize
+++ b/ld/config/.Sanitize
@@ -43,6 +43,7 @@ m68kv.mt
 m88k-bcs.mt
 mipsbsd.mt
 mips-big.mt
+mips-idt.mt
 mips-lit.mt
 news.mt
 ose68.mt
diff --git a/ld/config/mips-idt.mt b/ld/config/mips-idt.mt
new file mode 100644
index 00000000000..5c3920b6afc
--- /dev/null
+++ b/ld/config/mips-idt.mt
@@ -0,0 +1 @@
+EMUL=mipsidt
diff --git a/ld/mips.sc-sh b/ld/mips.sc-sh
index 726543c8e7e..afb3216d795 100644
--- a/ld/mips.sc-sh
+++ b/ld/mips.sc-sh
@@ -1,22 +1,27 @@
-# Linker script for MIPS.  This works on a DECstation running Ultrix,
-# and may work on other platforms as well.
+# Linker script for MIPS systems.
 # Ian Lance Taylor <ian@cygnus.com>.
+# These variables may be overridden by the emulation file.  The
+# defaults are appropriate for a DECstation running Ultrix.
+test -z "$ENTRY" && ENTRY=__start
+test -z "$TEXT_START_ADDR" && TEXT_START_ADDR="0x400000 + SIZEOF_HEADERS"
+test -z "$DATA_ADDR" && DATA_ADDR=0x10000000
+test -z "$BSS_VAR" && BSS_VAR=
 cat <<EOF
 OUTPUT_FORMAT("${OUTPUT_FORMAT}")
 ${LIB_SEARCH_DIRS}
 
-ENTRY(__start)
+ENTRY(${ENTRY})
 
 SECTIONS
 {
-  .text ${RELOCATING+ 0x400000 + SIZEOF_HEADERS} : {
+  .text ${RELOCATING+ ${TEXT_START_ADDR}} : {
     *(.init)
     ${RELOCATING+ eprol  =  .};
     *(.text)
     *(.fini)
     ${RELOCATING+ etext  =  .};
   }
-  .rdata ${RELOCATING+ 0x10000000} : {
+  .rdata ${RELOCATING+ ${DATA_ADDR}} : {
     *(.rdata)
   }
   .data ${RELOCATING+ .} : {
@@ -33,6 +38,7 @@ SECTIONS
     *(.sdata)
   }
   ${RELOCATING+ edata  =  .;}
+  ${BSS_VAR}
   .sbss ${RELOCATING+ .} : {
     *(.sbss)
     *(.scommon)
diff --git a/ld/mipsidt.sh b/ld/mipsidt.sh
new file mode 100644
index 00000000000..6d55bdf99ba
--- /dev/null
+++ b/ld/mipsidt.sh
@@ -0,0 +1,9 @@
+EMULATION_NAME=mipsidt
+SCRIPT_NAME=mips
+OUTPUT_FORMAT="ecoff-bigmips"
+PAGE_SIZE=0x1000000
+ARCH=mips
+ENTRY=start
+TEXT_START_ADDR=0xa0012000
+DATA_ADDR=.
+BSS_VAR="_fbss = .;"