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2009-06-17 Michael Eager <eager@eagercon.com> 

* rs6000/Makefile.in: Add xilinx support.
        * rs6000/xil-crt0.s: New crt0 file for powerpc-xilinx-eabi.
        * rs6000/xilinx.ld: New file.
        * rs6000/xilinx440.ld: Ditto.
This commit is contained in:
Jeff Johnston 2009-06-17 16:38:22 +00:00
parent 48114f9455
commit de8c9afd7a
5 changed files with 855 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
libgloss/ChangeLog
View File

@ -1,3 +1,10 @@
2009-06-17 Michael Eager <eager@eagercon.com>
* rs6000/Makefile.in: Add xilinx support.
* rs6000/xil-crt0.s: New crt0 file for powerpc-xilinx-eabi.
* rs6000/xilinx.ld: New file.
* rs6000/xilinx440.ld: Ditto.
2009-05-13 Ken Werner <ken.werner@de.ibm.com>
* configure.in: Introduce config_libnosys flag which defaults to true.

50
libgloss/rs6000/Makefile.in
View File

@ -121,6 +121,14 @@ MBX_OBJS = open.o close.o lseek.o sbrk.o read.o write.o mbx-exit.o mbx-inbyte.o
MBX_TEST = mbx-test
MBX_INSTALL = install-mbx
XIL_SCRIPTS = xilinx.ld xilinx440.ld
XIL_SPECS =
XIL_CRT0 = xil-crt0.o xil-pgcrt0.o xil-sim-crt0.o xil-sim-pgcrt0.o
XIL_BSP = libxil.a
XIL_OBJS = open.o close.o lseek.o sbrk.o read.o write.o print.o xil-exit.o
XIL_TEST = xil-test
XIL_INSTALL = install-xil
# Host specific makefile fragment comes in here.
@host_makefile_frag@
@ -135,7 +143,8 @@ all: \
${LINUX_CRT0} ${LINUX_BSP} \
${YELLOWKNIFE_CRT0} ${YELLOWKNIFE_BSP} \
${ADS_CRT0} ${ADS_BSP} \
${MBX_CRT0} ${MBX_BSP}
${MBX_CRT0} ${MBX_BSP} \
${XIL_CRT0} ${XIL_BSP}
#
# here's where we build the board support packages for each target
@ -169,11 +178,15 @@ ${MBX_BSP}: ${OBJS} ${MBX_OBJS}
${AR} ${ARFLAGS} $@ ${MBX_OBJS} ${OBJS}
${RANLIB} $@
${XIL_BSP}: ${OBJS} ${XIL_OBJS}
${AR} ${ARFLAGS} $@ ${XIL_OBJS} ${OBJS}
${RANLIB} $@
#
# here's where we build the test programs for each target
#
.PHONY: test
test: ${SIM_TEST} ${MVME_TEST} ${YELLOWKNIFE_TEST} ${ADS_TEST} ${MBX_TEST}
test: ${SIM_TEST} ${MVME_TEST} ${YELLOWKNIFE_TEST} ${ADS_TEST} ${MBX_TEST} ${XIL_TEST}
sim-test: sim-test.x sim-test.dis
@ -263,6 +276,19 @@ mbx-test.dis: mbx-test.x
mbx-test.srec: mbx-test.x
${OBJCOPY} -O srec mbx-test.x mbx-test.srec
xil-test: xil-test.x xil-test.dis xil-test.srec
xil-test.x: test.o ${XIL_CRT0} ${XIL_BSP}
${CC} ${LDFLAGS_FOR_TARGET} -L${objdir} \
-T${srcdir}/xilinx.ld ${XIL_CRT0} test.o \
-o xil-test.x $(LIBS_FOR_TARGET) ${XIL_BSP} -lc ${XIL_BSP}
xil-test.dis: xil-test.x
${OBJDUMP} -d xil-test.x > xil-test.dis
xil-test.srec: xil-test.x
${OBJCOPY} -O srec xil-test.x xil-test.srec
#
#
#
@ -286,6 +312,20 @@ mbx-inbyte.o: mbx-inbyte.c
mbx-outbyte.o: mbx-outbyte.c
mbx-print.o: mbx-print.c
xil-exit.o: xil-exit.c
xil-crt0.o: xil-crt0.S
${CC} -c -o $@ $<
xil-pgcrt0.o: xil-crt0.S
${CC} -c -DPROFILING -o $@ $<
xil-sim-crt0.o: xil-crt0.S
${CC} -c -DSIMULATOR -o $@ $<
xil-sim-pgcrt0.o: xil-crt0.S
${CC} -c -DSIMULATOR -DPROFILING -o $@ $<
sol-cfuncs.o: sol-cfuncs.c
sol-syscall.o: sol-syscall.S
@ -314,7 +354,7 @@ distclean maintainer-clean realclean: clean
rm -f Makefile config.status *~
.PHONY: install info install-info clean-info
install: ${SIM_INSTALL} ${MVME_INSTALL} ${SOLARIS_INSTALL} ${LINUX_INSTALL} ${YELLOWKNIFE_INSTALL} ${ADS_INSTALL} ${MBX_INSTALL}
install: ${SIM_INSTALL} ${MVME_INSTALL} ${SOLARIS_INSTALL} ${LINUX_INSTALL} ${YELLOWKNIFE_INSTALL} ${ADS_INSTALL} ${MBX_INSTALL} ${XIL_INSTALL}
install-sim:
set -e; for x in ${SIM_CRT0} ${SIM_BSP} ${SIM_SCRIPTS}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done
@ -340,6 +380,10 @@ install-mbx:
set -e; for x in ${MBX_CRT0} ${MBX_BSP}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done
set -e; for x in ${MBX_SCRIPTS} ${MBX_SPECS}; do ${INSTALL_DATA} $(srcdir)/$$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; done
install-xil:
set -e; for x in ${XIL_CRT0} ${XIL_BSP}; do ${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib/$$x; done
set -e; for x in ${XIL_SCRIPTS} ${XIL_SPECS}; do ${INSTALL_DATA} $(srcdir)/$$x $(DESTDIR)${tooldir}/lib/$$x; done
doc:
info:
install-info:

192
libgloss/rs6000/xil-crt0.S Normal file
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@ -0,0 +1,192 @@
/*-----------------------------------------------------------------------------
//
// Copyright (c) 2004, 2009 Xilinx, Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of Xilinx nor the names of its contributors may be
// used to endorse or promote products derived from this software without
// specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
// IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
//---------------------------------------------------------------------------*/
.file "xil-crt0.S"
.section ".got2","aw"
.align 2
.LCTOC1 = . + 32768
.Lsbss_start = .-.LCTOC1
.long __sbss_start
.Lsbss_end = .-.LCTOC1
.long __sbss_end
.Lbss_start = .-.LCTOC1
.long __bss_start
.Lbss_end = .-.LCTOC1
.long __bss_end
.Lstack = .-.LCTOC1
.long __stack
.Lsda = .-.LCTOC1
.long _SDA_BASE_ /* address of the first small data area */
.Lsda2 = .-.LCTOC1
.long _SDA2_BASE_ /* address of the second small data area */
.text
.globl _start
_start:
bl __cpu_init /* Initialize the CPU first (BSP provides this) */
lis 5,.LCTOC1@h
ori 5,5,.LCTOC1@l
lwz 13,.Lsda(5) /* load r13 with _SDA_BASE_ address */
lwz 2,.Lsda2(5) /* load r2 with _SDA2_BASE_ address */
#ifndef SIMULATOR
/* clear sbss */
lwz 6,.Lsbss_start(5) /* calculate beginning of the SBSS */
lwz 7,.Lsbss_end(5) /* calculate end of the SBSS */
cmplw 1,6,7
bc 4,4,.Lenclsbss /* If no SBSS, no clearing required */
li 0,0 /* zero to clear memory */
subf 8,6,7 /* number of bytes to zero */
srwi. 9,8,2 /* number of words to zero */
beq .Lstbyteloopsbss /* Check if the number of bytes was less than 4 */
mtctr 9
addi 6,6,-4 /* adjust so we can use stwu */
.Lloopsbss:
stwu 0,4(6) /* zero sbss */
bdnz .Lloopsbss
.Lstbyteloopsbss:
andi. 9,8,3 /* Calculate how many trailing bytes we have */
beq 0,.Lenclsbss
mtctr 9
addi 6,6,-1 /* adjust, so we can use stbu */
.Lbyteloopsbss:
stbu 0,1(6)
bdnz .Lbyteloopsbss
.Lenclsbss:
.Lstclbss:
/* clear bss */
lwz 6,.Lbss_start(5) /* calculate beginning of the BSS */
lwz 7,.Lbss_end(5) /* calculate end of the BSS */
cmplw 1,6,7
bc 4,4,.Lenclbss /* If no BSS, no clearing required */
li 0,0 /* zero to clear memory */
subf 8,6,7 /* number of bytes to zero */
srwi. 9,8,2 /* number of words to zero */
beq .Lstbyteloopbss /* Check if the number of bytes was less than 4 */
mtctr 9
addi 6,6,-4 /* adjust so we can use stwu */
.Lloopbss:
stwu 0,4(6) /* zero bss */
bdnz .Lloopbss
.Lstbyteloopbss:
andi. 9,8,3 /* Calculate how many trailing bytes we have */
beq 0,.Lenclbss /* If zero, we are done */
mtctr 9
addi 6,6,-1 /* adjust, so we can use stbu */
.Lbyteloopbss:
stbu 0,1(6)
bdnz .Lbyteloopbss
.Lenclbss:
#endif /* SIMULATOR */
/* set stack pointer */
lwz 1,.Lstack(5) /* stack address */
/* set up initial stack frame */
addi 1,1,-8 /* location of back chain */
lis 0,0
stw 0,0(1) /* set end of back chain */
/* initialize base timer to zero */
mtspr 0x11c,0
mtspr 0x11d,0
#ifdef HAVE_XFPU
/* On the Xilinx PPC405 and PPC440, the MSR
must be explicitly set to mark the prescence
of an FPU */
mfpvr 0
rlwinm 0,0,0,12,15
cmpwi 7,0,8192
mfmsr 0
ori 0,0,8192
beq- 7,fpu_init_done
do_405:
oris 0,0,512
fpu_init_done:
mtmsr 0
#endif
#ifdef PROFILING
/* Setup profiling stuff */
bl _profile_init
#endif /* PROFILING */
/* Call __init */
bl __init
/* Let her rip */
bl main
/* Invoke the language cleanup functions */
bl __fini
#ifdef PROFILING
/* Cleanup profiling stuff */
bl _profile_clean
#endif /* PROFILING */
/* Call __init */
/* All done */
bl exit
/* Trap has been removed for both simulation and hardware */
.globl _exit
_exit:
b _exit
.Lstart:
.size _start,.Lstart-_start

307
libgloss/rs6000/xilinx.ld Normal file
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@ -0,0 +1,307 @@
/* Default linker script, for normal executables
Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of Xilinx nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
"elf32-powerpc")
OUTPUT_ARCH(powerpc:common)
ENTRY(_boot)
_START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000;
_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k;
_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k;
STARTUP(boot.o)
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/* Adjust the address for the data segment. We want to adjust up to
the same address within the page on the next page up. It would
be more correct to do this:
. = ALIGN(0x08) + (ALIGN(8) & (0x08 - 1));
The current expression does not correctly handle the case of a
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a single segment, combining both text and data, for this case.
This will prevent the text segment from being shared among
multiple executions of the program; I think that is more
important than losing a page of the virtual address space (note
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CONSTRUCTORS
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get relocated with -mrelocatable. Also put in the .fixup pointers.
The current compiler no longer needs this, but keep it around for 2.7.2 */
PROVIDE (_GOT2_START_ = .);
PROVIDE (__GOT2_START_ = .);
.got2 : { *(.got2) }
PROVIDE (__CTOR_LIST__ = .);
PROVIDE (___CTOR_LIST__ = .);
.ctors :
{
/* gcc uses crtbegin.o to find the start of
the constructors, so we make sure it is
first. Because this is a wildcard, it
doesn't matter if the user does not
actually link against crtbegin.o; the
linker won't look for a file to match a
wildcard. The wildcard also means that it
doesn't matter which directory crtbegin.o
is in. */
KEEP (*crtbegin.o(.ctors))
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last */
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
}
PROVIDE (__CTOR_END__ = .);
PROVIDE (___CTOR_END__ = .);
PROVIDE (__DTOR_LIST__ = .);
PROVIDE (___DTOR_LIST__ = .);
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
}
PROVIDE (__DTOR_END__ = .);
PROVIDE (___DTOR_END__ = .);
PROVIDE (_FIXUP_START_ = .);
PROVIDE (__FIXUP_START_ = .);
.fixup : { *(.fixup) }
PROVIDE (_FIXUP_END_ = .);
PROVIDE (__FIXUP_END_ = .);
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PROVIDE (__GOT2_END_ = .);
PROVIDE (_GOT_START_ = .);
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PROVIDE (__GOT_END_ = .);
/* Added by Sathya to handle C++ exceptions */
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*(.eh_frame)
}
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*(.jcr)
}
.gcc_except_table : {
*(.gcc_except_table)
}
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__stack = .;
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{
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/* If so, then leave the location counter as is. */
/* If not, then make location counter to be 0x20 locations above boot location */
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_end = . ;
end = .;
__end = .;
.boot 0xFFFFFFFC : { *(.boot) }
/* These are needed for ELF backends which have not yet been
converted to the new style linker. */
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.stabstr 0 : { *(.stabstr) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
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/* These must appear regardless of . */
}

302
libgloss/rs6000/xilinx440.ld Normal file
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@ -0,0 +1,302 @@
/* Default linker script for PowerPC 440, for normal executables
Copyright (c) 2008, 2009 Xilinx, Inc. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
1. Redistributions source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of Xilinx nor the names of its contributors may be
used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
"elf32-powerpc")
OUTPUT_ARCH(powerpc:common)
ENTRY(_boot)
_START_ADDR = DEFINED(_START_ADDR) ? _START_ADDR : 0xFFFF0000;
_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 4k;
_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 4k;
STARTUP(boot.o)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
PROVIDE (__stack = 0); PROVIDE (___stack = 0);
SECTIONS
{
. = _START_ADDR;
/* Read-only sections, merged into text segment: */
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.dynsym : { *(.dynsym) }
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the same address within the page on the next page up. It would
be more correct to do this:
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The current expression does not correctly handle the case of a
text segment ending precisely at the end of a page; it causes the
data segment to skip a page. The above expression does not have
this problem, but it will currently (2/95) cause BFD to allocate
a single segment, combining both text and data, for this case.
This will prevent the text segment from being shared among
multiple executions of the program; I think that is more
important than losing a page of the virtual address space (note
that no actual memory is lost; the page which is skipped can not
be referenced). */
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wildcard. The wildcard also means that it
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The .ctor section from the crtend file contains the
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. = ALIGN(16);
__stack = .;
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Symbols in the DWARF debugging sections are relative to the beginning
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