Patch from Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca>.

to address m68k-rtemself for the MVME167.

    Here is the rtems patch I promissed you a long time ago to enable ELF
    with m68k. The target name I selected is m68k-rtemself. It preserves the
    m68k-rtems COFF target, and is parterned after the other ELF/COFF dual
    targets.

    The mvme167.cfg file causes the -qelf flag to be used during compilation
    if the name of the compiler contains rtemself. This flag is used in the
    bsp_specs file to select the elflinkcmds file rather than the linkcmds
    file. The former is for ELF, the latter for COFF.

    Some patches are required to the mc68040 FPSP code. Some of the
    assembler files contain instructions that were rejected by the
    m68k-rtemself-as assembler.  This is a minor bug in the m68k ELF
    assembler, I think.

c/src/lib/libbsp/m68k/mvme167/bsp_specs

@@ -7,16 +7,20 @@
 *cpp:
 %(old_cpp) %{qrtems: -D__embedded__} -Asystem(embedded)
 
+*endfile:
+crtend.o%s crtn.o%s
+
 *lib:
 %{!qrtems: %(old_lib)} %{qrtems: --start-group \
 %{!qrtems_debug: -lrtemsall} %{qrtems_debug: -lrtemsall_g} \
 -lc -lgcc --end-group \
-%{!qnolinkcmds: -T linkcmds%s}}
+%{!qelf: %{!qnolinkcmds: -T linkcmds%s}} %{qelf: %{!qnolinkcmd: -T
+elflinkcmds%s}}}
 
 *startfile:
 %{!qrtems: %(old_startfile)} %{qrtems: \
 %{!qrtems_debug: start.o%s} \
-%{qrtems_debug: start_g.o%s}}
+%{qrtems_debug: start_g.o%s} crti.o%s crtbegin.o%s}
 
 *link:
 %{!qrtems: %(old_link)} %{qrtems: -dc -dp -N -e start}

c/src/lib/libbsp/m68k/mvme167/startup/Makefile.in

@@ -23,7 +23,7 @@ C_O_FILES = $(C_PIECES:%=${ARCH}/%.o)
 
 H_FILES =
 
-SRCS = $(srcdir)/linkcmds $(C_FILES) $(H_FILES)
+SRCS = $(srcdir)/linkcmds $(srcdir)/elflinkcmds $(C_FILES) $(H_FILES)
 OBJS = $(C_O_FILES)
 
 include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
@@ -41,7 +41,9 @@ $(INSTALLDIRS):
 # (OPTIONAL) Add local stuff here using +=
 #
 
-DEFINES +=
+# USE_INIT_FINI tells main.c what C++ help we need.
+
+DEFINES += -DUSE_INIT_FINI
 CPPFLAGS +=
 CFLAGS +=
 
@@ -64,6 +66,7 @@ ${PGM}: ${SRCS} ${OBJS}
 
 all: ${ARCH} $(SRCS) $(PGM)
 	$(INSTALL_CHANGE) $(srcdir)/linkcmds $(PROJECT_RELEASE)/lib
+	$(INSTALL_CHANGE) $(srcdir)/elflinkcmds $(PROJECT_RELEASE)/lib
 
 Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
 	cd $(top_builddir) \

c/src/lib/libbsp/shared/bootcard.c

@@ -27,7 +27,7 @@ extern rtems_configuration_table  BSP_Configuration;
 extern rtems_cpu_table            Cpu_table;
 
 /* Initialize C++ global Ctor/Dtor and initializes exception handling. */
-#ifdef USE_INIT_FINI 
+#if defined(USE_INIT_FINI)
 extern void _fini( void );
 extern void _init( void );
 #endif

c/src/lib/libcpu/m68k/m68040/fpsp/bindec.S

@@ -486,7 +486,7 @@ A9_str:
 	fmovex	(%a0),%fp0	//load X from memory
 	fabsx	%fp0		//use abs(X)
 	tstw	%d5		//LAMBDA is in lower word of d5
-	bnes	sc_mul		//if neg (LAMBDA = 1), scale by mul
+	bne 	sc_mul		//if neg (LAMBDA = 1), scale by mul
 	fdivx	%fp1,%fp0		//calculate X / SCALE -> Y to fp0
 	bras	A10_st		//branch to A10
 

c/src/lib/libcpu/m68k/m68040/fpsp/decbin.S

@@ -232,7 +232,7 @@ nextlw:
 //
 m_sign:
 	btst	#31,(%a0)	//test sign of the mantissa
-	beqs	ap_st_z		//if clear, go to append/strip zeros
+	beq	ap_st_z		//if clear, go to append/strip zeros
 	fnegx	%fp0		//if set, negate fp0
 	
 //
@@ -290,7 +290,7 @@ ap_st_z:
 	cmpl	#27,%d1		//test is with 27
 	ble	pwrten		//if abs(expA) <28, skip ap/st zeros
 	btst	#30,(%a0)	//check sign of exp
-	bnes	ap_st_n		//if neg, go to neg side
+	bne	ap_st_n		//if neg, go to neg side
 	clrl	%d1		//zero count reg
 	movel	(%a0),%d4		//load lword 1 to d4
 	bfextu	%d4{#28:#4},%d0	//get M16 in d0
@@ -338,7 +338,7 @@ ap_p_en:
 	tstl	%d0		//check if d0 is zero
 	bnes	ap_p_el		//if not, get next bit
 	fmulx	%fp1,%fp0		//mul mantissa by 10**(no_bits_shifted)
-	bras	pwrten		//go calc pwrten
+	bra	pwrten		//go calc pwrten
 //
 // This section handles a negative adjusted exponent.
 //

c/src/lib/libcpu/m68k/m68040/fpsp/do_func.S

@@ -79,7 +79,7 @@ not_fmovecr:
 	movew	CMDREG1B(%a6),%d0
 	andl	#0x7F,%d0
 	cmpil	#0x38,%d0		//if the extension is >= $38, 
-	bges	serror		//it is illegal
+	bge	serror		//it is illegal
 	bfextu	STAG(%a6){#0:#3},%d1
 	lsll	#3,%d0		//make room for STAG
 	addl	%d1,%d0		//combine for final index into table

c/src/lib/libcpu/m68k/m68040/fpsp/get_op.S

@@ -173,7 +173,7 @@ PTENRP:
 get_op:
 	clrb	DY_MO_FLG(%a6)
 	tstb	UFLG_TMP(%a6)	//test flag for unsupp/unimp state
-	beqs	uni_getop
+	beq	uni_getop
 
 uns_getop:
 	btstb	#direction_bit,CMDREG1B(%a6)

c/src/lib/libcpu/m68k/m68040/fpsp/util.S

@@ -140,20 +140,20 @@ ovf_e1_exc:
 //
 ovf_fsgl:
 	clrl	%d0
-	bras	ovf_res
+	bra	ovf_res
 
 ovff_sgl:
 	movel	#0x00000001,%d0		//set single
-	bras	ovf_res
+	bra	ovf_res
 ovff_dbl:
 	movel	#0x00000002,%d0		//set double
-	bras	ovf_res
+	bra	ovf_res
 //
 // The precision is in the fpcr.
 //
 ovf_fpcr:
 	bfextu	FPCR_MODE(%a6){#0:#2},%d0 //set round precision
-	bras	ovf_res
+	bra	ovf_res
 	
 //
 //

c/src/lib/libcpu/m68k/m68040/fpsp/x_store.S

@@ -94,7 +94,7 @@ opc011:
 	cmpil	#0,%d0		//if dest format is extended
 	beq	dest_ext	//then branch
 	cmpil	#1,%d0		//if dest format is single
-	beqs	dest_sgl	//then branch
+	beq	dest_sgl	//then branch
 //
 //	fall through to dest_dbl
 //