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2006-02-22 Nathan Sidwell <nathan@codesourcery.com> 

* m68k/Makefile.in (CF_SCRIPTS): New.
        (all): Add CF_SCRIPTS.
        (m5208evb.ld, m5213evb.ld, m5235evb.ld, m5272c3.ld,
        m5282evb.ld): New targets
        (install): Iterate over CF_SCRIPTS.
        * m68k/crt0.S: Don't use dbra on any cf chips.
        * m68k/dbug-cf.sc: New.
This commit is contained in:
Jeff Johnston 2006-02-22 18:02:54 +00:00
parent 2eecb0478c
commit 7db9cdd24e
4 changed files with 144 additions and 2 deletions
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10
libgloss/ChangeLog
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@ -1,3 +1,13 @@
2006-02-22 Nathan Sidwell <nathan@codesourcery.com>
* m68k/Makefile.in (CF_SCRIPTS): New.
(all): Add CF_SCRIPTS.
(m5208evb.ld, m5213evb.ld, m5235evb.ld, m5272c3.ld,
m5282evb.ld): New targets
(install): Iterate over CF_SCRIPTS.
* m68k/crt0.S: Don't use dbra on any cf chips.
* m68k/dbug-cf.sc: New.
2006-02-07 Paul Brook <paul@codesourcery.com>
* arm/crt0.S: Add Thumb-2 startup code.

22
libgloss/m68k/Makefile.in
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@ -123,6 +123,8 @@ IDPGDB_OBJS= leds.o idp-inbyte.o idp-gdb-outbyte.o mc68ec.o
DBUG_BSP= libdbug.a
DBUG_OBJS= dbug-exit.o dbug-inbyte.o dbug-outbyte.o
CF_SCRIPTS= m5208evb.ld m5213evb.ld m5235evb.ld m5272c3.ld m5282evb.ld
# Host specific makefile fragment comes in here.
@host_makefile_frag@
@ -130,7 +132,7 @@ DBUG_OBJS= dbug-exit.o dbug-inbyte.o dbug-outbyte.o
# build a test program for each target board. Just trying to get
# it to link is a good test, so we ignore all the errors for now.
#
all: ${SIM_CRT0} ${SIM_BSP} ${CRT0} ${BCC_BSP} ${IDP_BSP} ${IDPGDB_BSP} ${MVME135_BSP} ${MVME162_BSP} ${DBUG_BSP}
all: ${SIM_CRT0} ${SIM_BSP} ${CRT0} ${BCC_BSP} ${IDP_BSP} ${IDPGDB_BSP} ${MVME135_BSP} ${MVME162_BSP} ${DBUG_BSP} ${CF_SCRIPTS}
#
# here's where we build the board support packages for each target
@ -163,6 +165,21 @@ ${MVME162_BSP}: $(OBJS) ${MVME162_OBJS}
${AR} ${ARFLAGS} $@ $(OBJS) ${MVME162_OBJS}
${RANLIB} $@
m5208evb.ld: dbug-cf.sc Makefile
RAMSTART=1024M RAMSIZE=16M RAMDBUG=128K ${SHELL} $< > $@
m5213evb.ld: dbug-cf.sc Makefile
RAMSTART=512M RAMSIZE=32K RAMDBUG=8K ${SHELL} $< > $@
m5235evb.ld: dbug-cf.sc Makefile
RAMSTART=0M RAMSIZE=16M RAMDBUG=64K ${SHELL} $< > $@
m5272c3.ld: dbug-cf.sc Makefile
RAMSTART=0M RAMSIZE=4M RAMDBUG=128K ${SHELL} $< > $@
m5282evb.ld: dbug-cf.sc Makefile
RAMSTART=0M RAMSIZE=16M RAMDBUG=64K ${SHELL} $< > $@
leds.o: ${srcdir}/leds.c
$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -c $<
@ -283,6 +300,9 @@ install:
$(INSTALL_PROGRAM) $(DBUG_BSP) $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/$(DBUG_BSP)
$(INSTALL_DATA) ${srcdir}/sbc5204.ld $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/sbc5204.ld
$(INSTALL_DATA) ${srcdir}/sbc5206.ld $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/sbc5206.ld
for script in $(CF_SCRIPTS) ; \
do $(INSTALL_DATA) $$script $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/$$script ; \
done
# target specific makefile fragment comes in here.
@target_makefile_frag@

2
libgloss/m68k/crt0.S
View File

@ -84,7 +84,7 @@ SYM (start):
subql IMM(1), d0
2:
clrb (a0)+
#if !defined(__mcoldfire__) && !defined(__mcf5200__)
#if !defined(__mcoldfire__)
dbra d0, 2b
clrw d0
subql IMM(1), d0

112
libgloss/m68k/dbug-cf.sc Normal file
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@ -0,0 +1,112 @@
# a linker script template.
# RAMSTART - start of board's ram
# RAMSIZE - size of board's ram
# RAMDBUG - bytes at start of RAM for DBUG use
cat <<EOF
STARTUP(crt0.o)
OUTPUT_ARCH(m68k)
/* DBUG loads SREC files */
/*OUTPUT_FORMAT(srec)*/
ENTRY(start)
SEARCH_DIR(.)
GROUP(-ldbug -lc -lgcc -ldbug)
__DYNAMIC = 0;
MEMORY
{
ram (rwx) : ORIGIN = ${RAMSTART} + ${RAMDBUG:-0},
LENGTH = ${RAMSIZE} - ${RAMDBUG:-0}
}
PROVIDE (__stack = ${RAMSTART} + ${RAMSIZE});
/*
* Initalize some symbols to be zero so we can reference them in the
* crt0 without core dumping. These functions are all optional, but
* we do this so we can have our crt0 always use them if they exist.
* This is so BSPs work better when using the crt0 installed gcc.
* We have to initalize them twice, so we cover a.out (which prepends
* an underscore) and coff object file formats.
*/
PROVIDE (hardware_init_hook = 0);
PROVIDE (_hardware_init_hook = 0);
PROVIDE (software_init_hook = 0);
PROVIDE (_software_init_hook = 0);
/*
* stick everything in ram (of course)
*/
SECTIONS
{
.text :
{
CREATE_OBJECT_SYMBOLS
*(.text .text.*)
. = ALIGN(0x4);
/* These are for running static constructors and destructors under ELF. */
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
*(.rodata .rodata.*)
. = ALIGN(0x4);
*(.gcc_except_table)
. = ALIGN(0x4);
*(.eh_frame)
. = ALIGN(0x4);
__INIT_SECTION__ = . ;
LONG (0x4e560000) /* linkw %fp,#0 */
*(.init)
SHORT (0x4e5e) /* unlk %fp */
SHORT (0x4e75) /* rts */
. = ALIGN(0x4);
__FINI_SECTION__ = . ;
LONG (0x4e560000) /* linkw %fp,#0 */
*(.fini)
SHORT (0x4e5e) /* unlk %fp */
SHORT (0x4e75) /* rts */
_etext = .;
*(.lit)
} > ram
.data :
{
*(.got.plt) *(.got)
*(.shdata)
*(.data .data.*)
_edata = .;
} > ram
.bss :
{
. = ALIGN(0x4);
__bss_start = . ;
*(.shbss)
*(.bss .bss.*)
*(COMMON)
_end = ALIGN (0x8);
__end = _end;
} > ram
.stab 0 (NOLOAD) :
{
*(.stab)
}
.stabstr 0 (NOLOAD) :
{
*(.stabstr)
}
}
EOF