Add TMS320C4x support

9 files changed, 229 insertions, 0 deletions

diff --git a/ld/ChangeLog b/ld/ChangeLog
index f09a0ae..94e04ae 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,18 @@
+2002-08-28  Svein E. Seldal  <Svein.Seldal@solidas.com>
+
+	* Makefile.am: Add etic4xcoff.o in ALL_EMULATIONS list and
+	added makefile targets for this file.
+	* Makefile.in: Regenerate.
+	* configure.tgt: Added tic4x-coff and c4x-coff emulations.
+	* NEWS: Mention new port.
+
+2002-08-28  Michael Hayes <m.hayes@elec.canterbury.ac.nz>
+
+	* emulparams/tic3xcoff.sh: New file.
+	* emulparams/tic4xcoff.sh: New file.
+	* scripttempl/tic3xcoff.sc: New file.
+	* scripttempl/tic4xcoff.sc: New file.
+
 2002-08-28  Alan Modra  <amodra@bigpond.net.au>
 
 	* emultempl/aix.em (gld${EMULATION_NAME}_parse_args): Replace strtoll,
diff --git a/ld/Makefile.am b/ld/Makefile.am
index 5f78386..c89d37b 100644
--- a/ld/Makefile.am
+++ b/ld/Makefile.am
@@ -282,6 +282,7 @@ ALL_EMULATIONS = \
 	esun4.o \
 	etic30aout.o \
 	etic30coff.o \
+	etic4xcoff.o \
 	etic54xcoff.o \
 	etic80coff.o \
 	evanilla.o \
@@ -1078,6 +1079,9 @@ etic30aout.c: $(srcdir)/emulparams/tic30aout.sh \
 etic30coff.c: $(srcdir)/emulparams/tic30coff.sh \
   $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/tic30coff.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} tic30coff "$(tdir_tic30coff)"
+etic4xcoff.c: $(srcdir)/emulparams/tic4xcoff.sh \
+  $(srcdir)/emultempl/ticoff.em $(srcdir)/scripttempl/tic4xcoff.sc ${GEN_DEPENDS}
+	${GENSCRIPTS} tic4xcoff "$(tdir_tic4xcoff)"
 etic54xcoff.c: $(srcdir)/emulparams/tic54xcoff.sh \
   $(srcdir)/emultempl/ticoff.em $(srcdir)/scripttempl/tic54xcoff.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} tic54xcoff "$(tdir_tic54xcoff)"
diff --git a/ld/Makefile.in b/ld/Makefile.in
index 886dd4f..b038e17 100644
--- a/ld/Makefile.in
+++ b/ld/Makefile.in
@@ -393,6 +393,7 @@ ALL_EMULATIONS = \
 	esun4.o \
 	etic30aout.o \
 	etic30coff.o \
+	etic4xcoff.o \
 	etic54xcoff.o \
 	etic80coff.o \
 	evanilla.o \
@@ -1801,6 +1802,9 @@ etic30aout.c: $(srcdir)/emulparams/tic30aout.sh \
 etic30coff.c: $(srcdir)/emulparams/tic30coff.sh \
   $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/tic30coff.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} tic30coff "$(tdir_tic30coff)"
+etic4xcoff.c: $(srcdir)/emulparams/tic4xcoff.sh \
+  $(srcdir)/emultempl/ticoff.em $(srcdir)/scripttempl/tic4xcoff.sc ${GEN_DEPENDS}
+	${GENSCRIPTS} tic4xcoff "$(tdir_tic4xcoff)"
 etic54xcoff.c: $(srcdir)/emulparams/tic54xcoff.sh \
   $(srcdir)/emultempl/ticoff.em $(srcdir)/scripttempl/tic54xcoff.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} tic54xcoff "$(tdir_tic54xcoff)"
diff --git a/ld/NEWS b/ld/NEWS
index 09c07bf..a4bad66 100644
--- a/ld/NEWS
+++ b/ld/NEWS
@@ -1,5 +1,8 @@
 -*- text -*-
 
+* Support for Texas Instruments TMS320C4x series of microcontrollers
+  contributed by Michael Hayes and Svein E. Seldal.
+  
 * Added --with-lib-path configure switch to specify default value for
   LIB_PATH.
 
diff --git a/ld/configure.tgt b/ld/configure.tgt
index 9ee6d34..0f1d1c9 100644
--- a/ld/configure.tgt
+++ b/ld/configure.tgt
@@ -498,6 +498,7 @@ rs6000-*-aix5*)		targ_emul=aix5rs6 ;;
 rs6000-*-aix*)		targ_emul=aixrs6 ;;
 tic30-*-*aout*)		targ_emul=tic30aout ;;
 tic30-*-*coff*)		targ_emul=tic30coff ;;
+tic4x-*-* | c4x-*-*)    targ_emul=tic4xcoff ;;
 tic54x-*-* | c54x*-*-*)	targ_emul=tic54xcoff ;;
 tic80-*-*)		targ_emul=tic80coff ;;
 v850-*-*)		targ_emul=v850 ;;
diff --git a/ld/emulparams/tic3xcoff.sh b/ld/emulparams/tic3xcoff.sh
new file mode 100644
index 0000000..3d4fbf9
--- /dev/null
+++ b/ld/emulparams/tic3xcoff.sh
@@ -0,0 +1,9 @@
+SCRIPT_NAME=tic4xcoff
+OUTPUT_FORMAT="coff2-c4x"
+OUTPUT_ARCH="c3x"
+ARCH=c3x
+#ENTRY=_c_int00
+TEXT_START_ADDR=0x0080
+TARGET_PAGE_SIZE=0x1000
+TEMPLATE_NAME=ticoff
+OUTPUT_FORMAT_TEMPLATE=tic4x
diff --git a/ld/emulparams/tic4xcoff.sh b/ld/emulparams/tic4xcoff.sh
new file mode 100644
index 0000000..d6b9dc6
--- /dev/null
+++ b/ld/emulparams/tic4xcoff.sh
@@ -0,0 +1,9 @@
+SCRIPT_NAME=tic4xcoff
+OUTPUT_FORMAT="coff2-c4x"
+OUTPUT_ARCH="c4x"
+ARCH=c4x
+#ENTRY=_c_int00
+TEXT_START_ADDR=0x0080
+TARGET_PAGE_SIZE=0x1000
+TEMPLATE_NAME=ticoff
+OUTPUT_FORMAT_TEMPLATE=tic4x
diff --git a/ld/scripttempl/tic3xcoff.sc b/ld/scripttempl/tic3xcoff.sc
new file mode 100644
index 0000000..29dc400
--- /dev/null
+++ b/ld/scripttempl/tic3xcoff.sc
@@ -0,0 +1,92 @@
+# 32 interrupt vectors + 32 trap vectors each of 4 bytes
+# The .bss and .data sections need to be contiguous for direct addressing
+# The data page pointer gets loaded with the start of .bss
+# TI C compiler uses .cinit to initialise variables in .bss
+
+test -z "$ENTRY" && ENTRY=_start
+# These are substituted in as variables in order to get '}' in a shell
+# conditional expansion.
+INIT='.init : { *(.init) }'
+FINI='.fini : { *(.fini) }'
+cat <<EOF
+OUTPUT_FORMAT("${OUTPUT_FORMAT}")
+OUTPUT_ARCH("${OUTPUT_ARCH}")
+${LIB_SEARCH_DIRS}
+
+ENTRY(${ENTRY})
+${RELOCATING+ __SYSMEM_SIZE = DEFINED(__SYSMEM_SIZE) ? __SYSMEM_SIZE : 0x4000;}
+${RELOCATING+ __STACK_SIZE  = DEFINED(__STACK_SIZE)  ? __STACK_SIZE  : 0x1000;}
+
+SECTIONS
+{
+  .comms ${RELOCATING+ 64} : {
+    *(.comms)
+  } 
+  .bss ${RELOCATING+ SIZEOF(.comms) + ADDR(.comms)} : {
+    ${RELOCATING+ .bss  =  .;}	
+    *(.bss)
+    *(COMMON)
+    ${RELOCATING+  end  =  .;}
+    ${RELOCATING+  _end  =  end;}
+  }
+  .data ${RELOCATING+ SIZEOF(.bss) + ADDR(.bss)} :
+  { 				
+    ${RELOCATING+  .data  = .;}
+    *(.data)
+    ${RELOCATING+  edata  =  .;}
+  }
+  .const ${RELOCATING+ SIZEOF(.data) + ADDR(.data)} :
+  { 					
+    *(.const)
+  }
+  .cinit ${RELOCATING+ SIZEOF(.const) + ADDR(.const)} :
+  { 					
+    ${RELOCATING+  cinit = .;}
+    *(.cinit)
+    LONG(0);
+  }
+  .text ${RELOCATING+ SIZEOF(.cinit) + ADDR(.cinit)} : {
+    ${RELOCATING+  .text =  .;}
+    ${RELOCATING+ *(.init)}
+    *(.text)
+    ${CONSTRUCTING+ ___CTOR_LIST__ = .;}
+    ${CONSTRUCTING+ LONG(___CTOR_END__ - ___CTOR_LIST__ - 2)}
+    ${CONSTRUCTING+ *(.ctors)}
+    ${CONSTRUCTING+ LONG(0);}
+    ${CONSTRUCTING+ ___CTOR_END__  = .;}
+    ${CONSTRUCTING+ ___DTOR_LIST__ = .;}
+    ${CONSTRUCTING+ LONG(___DTOR_END__ - ___DTOR_LIST__ - 2)}
+    ${CONSTRUCTING+ *(.dtors)}
+    ${CONSTRUCTING+ LONG(0)}
+    ${CONSTRUCTING+ ___DTOR_END__  = .;}
+    ${RELOCATING+ *(.fini)}
+    ${RELOCATING+  etext =  .;}
+    ${RELOCATING+  _etext =  etext;}
+  }
+  .stack ${RELOCATING+ SIZEOF(.text) + ADDR(.text)} :
+  { 					
+    *(.stack)
+    ${RELOCATING+ .  =  . + __STACK_SIZE};		
+  }
+  .sysmem ${RELOCATING+ SIZEOF(.stack) + ADDR(.stack)} :
+  { 					
+    *(.sysmem)
+  }
+  .heap ${RELOCATING+ SIZEOF(.sysmem) + ADDR(.sysmem)} :
+  { 					
+    ${RELOCATING+ . += __SYSMEM_SIZE - SIZEOF(.sysmem)};
+  }
+  ${RELOCATING- ${INIT}}
+  ${RELOCATING- ${FINI}}
+  .stab  0 ${RELOCATING+(NOLOAD)} : 
+  {
+    [ .stab ]
+  }
+  .stabstr  0 ${RELOCATING+(NOLOAD)} :
+  {
+    [ .stabstr ]
+  }
+/* The TI tools sets cinit to -1 if the ram model is used.  */
+    ${RELOCATING+  cinit = SIZEOF(.cinit) == 1 ? cinit : -1;}
+}
+EOF
diff --git a/ld/scripttempl/tic4xcoff.sc b/ld/scripttempl/tic4xcoff.sc
new file mode 100644
index 0000000..29dc400
--- /dev/null
+++ b/ld/scripttempl/tic4xcoff.sc
@@ -0,0 +1,92 @@
+# 32 interrupt vectors + 32 trap vectors each of 4 bytes
+# The .bss and .data sections need to be contiguous for direct addressing
+# The data page pointer gets loaded with the start of .bss
+# TI C compiler uses .cinit to initialise variables in .bss
+
+test -z "$ENTRY" && ENTRY=_start
+# These are substituted in as variables in order to get '}' in a shell
+# conditional expansion.
+INIT='.init : { *(.init) }'
+FINI='.fini : { *(.fini) }'
+cat <<EOF
+OUTPUT_FORMAT("${OUTPUT_FORMAT}")
+OUTPUT_ARCH("${OUTPUT_ARCH}")
+${LIB_SEARCH_DIRS}
+
+ENTRY(${ENTRY})
+${RELOCATING+ __SYSMEM_SIZE = DEFINED(__SYSMEM_SIZE) ? __SYSMEM_SIZE : 0x4000;}
+${RELOCATING+ __STACK_SIZE  = DEFINED(__STACK_SIZE)  ? __STACK_SIZE  : 0x1000;}
+
+SECTIONS
+{
+  .comms ${RELOCATING+ 64} : {
+    *(.comms)
+  } 
+  .bss ${RELOCATING+ SIZEOF(.comms) + ADDR(.comms)} : {
+    ${RELOCATING+ .bss  =  .;}	
+    *(.bss)
+    *(COMMON)
+    ${RELOCATING+  end  =  .;}
+    ${RELOCATING+  _end  =  end;}
+  }
+  .data ${RELOCATING+ SIZEOF(.bss) + ADDR(.bss)} :
+  { 				
+    ${RELOCATING+  .data  = .;}
+    *(.data)
+    ${RELOCATING+  edata  =  .;}
+  }
+  .const ${RELOCATING+ SIZEOF(.data) + ADDR(.data)} :
+  { 					
+    *(.const)
+  }
+  .cinit ${RELOCATING+ SIZEOF(.const) + ADDR(.const)} :
+  { 					
+    ${RELOCATING+  cinit = .;}
+    *(.cinit)
+    LONG(0);
+  }
+  .text ${RELOCATING+ SIZEOF(.cinit) + ADDR(.cinit)} : {
+    ${RELOCATING+  .text =  .;}
+    ${RELOCATING+ *(.init)}
+    *(.text)
+    ${CONSTRUCTING+ ___CTOR_LIST__ = .;}
+    ${CONSTRUCTING+ LONG(___CTOR_END__ - ___CTOR_LIST__ - 2)}
+    ${CONSTRUCTING+ *(.ctors)}
+    ${CONSTRUCTING+ LONG(0);}
+    ${CONSTRUCTING+ ___CTOR_END__  = .;}
+    ${CONSTRUCTING+ ___DTOR_LIST__ = .;}
+    ${CONSTRUCTING+ LONG(___DTOR_END__ - ___DTOR_LIST__ - 2)}
+    ${CONSTRUCTING+ *(.dtors)}
+    ${CONSTRUCTING+ LONG(0)}
+    ${CONSTRUCTING+ ___DTOR_END__  = .;}
+    ${RELOCATING+ *(.fini)}
+    ${RELOCATING+  etext =  .;}
+    ${RELOCATING+  _etext =  etext;}
+  }
+  .stack ${RELOCATING+ SIZEOF(.text) + ADDR(.text)} :
+  { 					
+    *(.stack)
+    ${RELOCATING+ .  =  . + __STACK_SIZE};		
+  }
+  .sysmem ${RELOCATING+ SIZEOF(.stack) + ADDR(.stack)} :
+  { 					
+    *(.sysmem)
+  }
+  .heap ${RELOCATING+ SIZEOF(.sysmem) + ADDR(.sysmem)} :
+  { 					
+    ${RELOCATING+ . += __SYSMEM_SIZE - SIZEOF(.sysmem)};
+  }
+  ${RELOCATING- ${INIT}}
+  ${RELOCATING- ${FINI}}
+  .stab  0 ${RELOCATING+(NOLOAD)} : 
+  {
+    [ .stab ]
+  }
+  .stabstr  0 ${RELOCATING+(NOLOAD)} :
+  {
+    [ .stabstr ]
+  }
+/* The TI tools sets cinit to -1 if the ram model is used.  */
+    ${RELOCATING+  cinit = SIZEOF(.cinit) == 1 ? cinit : -1;}
+}
+EOF