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2009-09-28 Michael Eager <eager@eagercon.com> 

* configure.in: Add microblaze-*-*.
        * configure: Add microblaze-*-* (not regenerated.)
        * microblaze: NEW microblaze target directory.
        * microblaze/configure.in: NEW.
        * microblaze/configure: Generate.
        * microblaze/Makefile.in: NEW.
        * microblaze/{crt0.S, crt1.S, crt2.S, crt3.S, crt4.S, crtinit.S}: NEW.
        * microblaze/{pgcrtinit.S, _program_clean.S, _program_init.S,
        sbrk.c, sim-crtinit.S, sim-pgcrtinit.S, timer.c, _exception_handler.S,
        _hw_exception_handler.S, _interrupt_handler.S, xil_malloc.c,
        nnxil_printf.c, xil_sbrk.c: NEW.
        * microblaze/xilinx.ld: NEW.
This commit is contained in:
Jeff Johnston 2009-09-28 16:43:57 +00:00
parent 6c249577fb
commit c38ed7c697
25 changed files with 6064 additions and 0 deletions
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15
libgloss/ChangeLog
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@ -1,3 +1,18 @@
2009-09-28 Michael Eager <eager@eagercon.com>
* configure.in: Add microblaze-*-*.
* configure: Add microblaze-*-* (not regenerated.)
* microblaze: NEW microblaze target directory.
* microblaze/configure.in: NEW.
* microblaze/configure: Generate.
* microblaze/Makefile.in: NEW.
* microblaze/{crt0.S, crt1.S, crt2.S, crt3.S, crt4.S, crtinit.S}: NEW.
* microblaze/{pgcrtinit.S, _program_clean.S, _program_init.S,
sbrk.c, sim-crtinit.S, sim-pgcrtinit.S, timer.c, _exception_handler.S,
_hw_exception_handler.S, _interrupt_handler.S, xil_malloc.c,
nnxil_printf.c, xil_sbrk.c: NEW.
* microblaze/xilinx.ld: NEW.
2009-09-21 Ken Werner <ken.werner@de.ibm.com>
* spu/getpagesize.c: Align getpagesize implementation to POSIX

8
libgloss/configure vendored
View File

@ -302,6 +302,7 @@ ac_subdirs_all="$ac_subdirs_all arm"
ac_subdirs_all="$ac_subdirs_all spu"
ac_subdirs_all="$ac_subdirs_all iq2000"
ac_subdirs_all="$ac_subdirs_all libnosys"
ac_subdirs_all="$ac_subdirs_all microblaze"
ac_subst_vars='SHELL PATH_SEPARATOR PACKAGE_NAME PACKAGE_TARNAME PACKAGE_VERSION PACKAGE_STRING PACKAGE_BUGREPORT exec_prefix prefix program_transform_name bindir sbindir libexecdir datadir sysconfdir sharedstatedir localstatedir libdir includedir oldincludedir infodir mandir build_alias host_alias target_alias DEFS ECHO_C ECHO_N ECHO_T LIBS INSTALL_PROGRAM INSTALL_SCRIPT INSTALL_DATA build build_cpu build_vendor build_os host host_cpu host_vendor host_os target target_cpu target_vendor target_os CYGPATH_W PACKAGE VERSION ACLOCAL AUTOCONF AUTOMAKE AUTOHEADER MAKEINFO install_sh STRIP ac_ct_STRIP INSTALL_STRIP_PROGRAM mkdir_p AWK SET_MAKE am__leading_dot AMTAR am__tar am__untar subdirs CC DEPDIR am__include am__quote AMDEP_TRUE AMDEP_FALSE AMDEPBACKSLASH CCDEPMODE am__fastdepCC_TRUE am__fastdepCC_FALSE AS AR LD RANLIB ac_ct_RANLIB CCAS CCASFLAGS host_makefile_frag_path LIBOBJS LTLIBOBJS'
ac_subst_files='host_makefile_frag'
@ -1998,6 +1999,13 @@ subdirs="$subdirs spu"
subdirs="$subdirs iq2000"
;;
microblaze*-*-*)
subdirs="$subdirs microblaze"
;;
esac

3
libgloss/configure.in
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@ -100,6 +100,9 @@ case "${target}" in
moxie-*-*)
AC_CONFIG_SUBDIRS([moxie])
;;
microblaze-*-*)
AC_CONFIG_SUBDIRS([microblaze])
;;
mt-*-*)
AC_CONFIG_SUBDIRS([mt])
;;

125
libgloss/microblaze/Makefile.in Normal file
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@ -0,0 +1,125 @@
# Copyright 2007, 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.
# Makefile for libgloss/microblaze. This is the board support
# code for the various microblaze targets.
DESTDIR =
VPATH = @srcdir@
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
prefix = @prefix@
exec_prefix = @exec_prefix@
host_alias = @host_alias@
target_alias = @target_alias@
bindir = @bindir@
libdir = @libdir@
tooldir = $(exec_prefix)/$(target_alias)
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTIDIRS =
MULTISUBDIR =
MULTIDO = true
MULTICLEAN = true
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
SHELL = /bin/sh
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
AR_FLAGS = qrv
OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
then echo ${objroot}/../binutils/objdump ; \
else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi`
OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
then echo ${objroot}/../binutils/objcopy ; \
else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
CRT = crt0.o crt1.o crt2.o crt3.o crt4.o crtinit.o pgcrtinit.o sim-crtinit.o sim-pgcrtinit.o
LIB = libgloss.a
OBJS = sbrk.o timer.o _exception_handler.o _hw_exception_handler.o _interrupt_handler.o _program_clean.o _program_init.o xil_malloc.o xil_sbrk.o
SCRIPTS = xilinx.ld
CPU = @CPU@
#### Host specific Makefile fragment comes in here.
@host_makefile_frag@
all: ${CRT} ${LIB}
install: ${CRT} ${LIB}
@for crt in ${CRT}; do \
$(INSTALL_PROGRAM) $${crt} $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}/$${crt}; \
done
$(INSTALL_PROGRAM) ${LIB} $(DESTDIR)$(tooldir)/lib${MULTISUBDIR}
$(INSTALL_PROGRAM) $(srcdir)/${SCRIPTS} $(DESTDIR)$(tooldir)/lib/
crt0.o: crt0.S
crt1.o: crt1.S
crt2.o: crt2.S
crt3.o: crt3.S
crt4.o: crt4.S
crtinit.o: crtinit.S
sim-crtinit.o: sim-crtinit.S
sim-pgcrtinit.o: sim-pgcrtinit.S
clean mostlyclean:
rm -f *.o *.a *.map *.x
distclean maintainer-clean realclean: clean
rm -f Makefile config.cache config.log config.status
${LIB}: ${OBJS}
${AR} ${ARFLAGS} $@ ${OBJS}
${RANLIB} $@
.PHONY: info dvi doc install-info clean-info
info doc dvi:
install-info:
clean-info:
Makefile: Makefile.in config.status @host_makefile_frag_path@ \
$(SHELL) config.status
config.status: configure
$(SHELL) config.status --recheck

38
libgloss/microblaze/_exception_handler.S Normal file
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@ -0,0 +1,38 @@
/* Copyright (c) 2001, 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.
*/
.text
.globl _exception_handler # Exception Handler Label
.align 2
_exception_handler:
rtsd r17, 0
nop

38
libgloss/microblaze/_hw_exception_handler.S Normal file
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@ -0,0 +1,38 @@
/* Copyright (c) 2001, 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.
*/
.text
.globl _hw_exception_handler # HW Exception Handler Label
.align 2
_hw_exception_handler:
rted r17, 0
nop

38
libgloss/microblaze/_interrupt_handler.S Normal file
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@ -0,0 +1,38 @@
/* Copyright (c) 2001, 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.
*/
.text
.globl _interrupt_handler # Interrupt Handler Label
.align 2
_interrupt_handler:
rtid r14, 0
nop

42
libgloss/microblaze/_program_clean.S Normal file
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@ -0,0 +1,42 @@
## Copyright (c) 2001, 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.
#
# _program_clean.s
#
# Dummy file to be replaced by LibGen
#
.text
.align 2
.globl _program_clean
.ent _program_clean
_program_clean:
rtsd r15,8
nop
.end _program_clean

41
libgloss/microblaze/_program_init.S Normal file
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@ -0,0 +1,41 @@
## Copyright (c) 2001, 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.
#
# _program_init.s
#
# Dummy file to be replaced by LibGen
.text
.align 2
.globl _program_init
.ent _program_init
_program_init:
rtsd r15,8
nop
.end _program_init

3733
libgloss/microblaze/configure vendored Normal file
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56
libgloss/microblaze/configure.in Normal file
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@ -0,0 +1,56 @@
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT(crt0.S)
if test "${enable_shared}" = "yes" ; then
echo "Shared libraries not supported for cross compiling, ignored"
fi
if test "$srcdir" = "." ; then
if test "${with_target_subdir}" != "." ; then
libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
else
libgloss_topdir="${srcdir}/${with_multisrctop}../.."
fi
else
libgloss_topdir="${srcdir}/../.."
fi
AC_CONFIG_AUX_DIR($libgloss_topdir)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM
AC_PROG_INSTALL
LIB_AC_PROG_CC
AS=${AS-as}
AC_SUBST(AS)
AR=${AR-ar}
AC_SUBST(AR)
LD=${LD-ld}
AC_SUBST(LD)
AC_PROG_RANLIB
LIB_AM_PROG_AS
AC_SUBST(bsp_prefix)
host_makefile_frag=${srcdir}/../config/default.mh
dnl We have to assign the same value to other variables because autoconf
dnl doesn't provide a mechanism to substitute a replacement keyword with
dnl arbitrary data or pathnames.
dnl
host_makefile_frag_path=$host_makefile_frag
AC_SUBST(host_makefile_frag_path)
AC_SUBST_FILE(host_makefile_frag)
AC_CONFIG_FILES(Makefile,
. ${libgloss_topdir}/config-ml.in,
srcdir=${srcdir}
target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)
AC_OUTPUT

109
libgloss/microblaze/crt0.S Normal file
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@ -0,0 +1,109 @@
/* Copyright (c) 2001, 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.
MicroBlaze Vector Map for standalone executables
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset _start1
# 0x08 # (-- IMM --)
# 0x0c # Software Exception _exception_handler
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt _interrupt_handler
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception _hw_exception_handler
*/
.globl _start
.section .vectors.reset, "ax"
.align 2
.ent _start
.type _start, @function
_start:
brai _start1
.end _start
.section .vectors.sw_exception, "ax"
.align 2
_vector_sw_exception:
brai _exception_handler
.section .vectors.interrupt, "ax"
.align 2
_vector_interrupt:
brai _interrupt_handler
.section .vectors.hw_exception, "ax"
.align 2
_vector_hw_exception:
brai _hw_exception_handler
.section .text
.globl _start1
.align 2
.ent _start1
.type _start1, @function
_start1:
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
la r2, r0, _SDA2_BASE_
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start1
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
bri 0
.end _exit

102
libgloss/microblaze/crt1.S Normal file
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@ -0,0 +1,102 @@
/* Copyright (c) 2001, 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.
MicroBlaze Vector Map for standalone executables
downloaded and executed with XMDSTUB
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset (-- Don't Care --)
# 0x08 # (-- IMM --)
# 0x0c # Software Exception _exception_handler
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt _interrupt_handler
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception _hw_exception_handler
*/
.section .vectors.sw_exception, "ax"
.align 2
_vector_sw_exception:
brai _exception_handler
.section .vectors.interrupt, "ax"
.align 2
_vector_interrupt:
brai _interrupt_handler
.section .vectors.hw_exception, "ax"
.align 2
_vector_hw_exception:
brai _hw_exception_handler
.section .text
.globl _start
.align 2
.ent _start
.type _start, @function
_start:
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
la r2, r0, _SDA2_BASE_
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
add r3, r0, r5
brki r16, 0x4 /* Return to hook in XMDSTUB */
.end _exit

98
libgloss/microblaze/crt2.S Normal file
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@ -0,0 +1,98 @@
/* Copyright (c) 2001, 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.
MicroBlaze Vector Map for standalone executables that are boot-strapped
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset (-- Don't Care --)
# 0x08 # (-- IMM --)
# 0x0c # Software Exception _exception_handler
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt _interrupt_handler
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception _hw_exception_handler
*/
.section .vectors.sw_exception, "ax"
.align 2
_vector_sw_exception:
brai _exception_handler
.section .vectors.interrupt, "ax"
.align 2
_vector_interrupt:
brai _interrupt_handler
.section .vectors.hw_exception, "ax"
.align 2
_vector_hw_exception:
brai _hw_exception_handler
.section .text
.globl _start
.align 2
.ent _start
.type _start, @function
_start:
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
la r2, r0, _SDA2_BASE_
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
bri 0
.end _exit

84
libgloss/microblaze/crt3.S Normal file
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/* Copyright (c) 2001, 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.
MicroBlaze Vector Map for vector-less ELF images
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset (-- Don't Care --)
# 0x08 # (-- IMM --)
# 0x0c # Software Exception (-- Don't Care --)
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt (-- Don't Care --)
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception (-- Don't Care --)
*/
.section .text
.globl _start
.align 2
.ent _start
.type _start, @function
_start:
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
la r2, r0, _SDA2_BASE_
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
bri 0
.end _exit

86
libgloss/microblaze/crt4.S Normal file
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/* Copyright (c) 2001, 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.
MicroBlaze Vector Map for Xilkernel ELF process images
Address Vector type Label
------- ----------- ------
# 0x00 # (-- IMM --)
# 0x04 # Reset (-- Don't Care --)
# 0x08 # (-- IMM --)
# 0x0c # Software Exception (-- Don't Care --)
# 0x10 # (-- IMM --)
# 0x14 # Hardware Interrupt (-- Don't Care --)
# 0x18 # (-- IMM --)
# 0x1C # Breakpoint Exception (-- Don't Care --)
# 0x20 # (-- IMM --)
# 0x24 # Hardware Exception (-- Don't Care --)
*/
.section .text
.globl _start
.align 2
.ent _start
.type _start, @function
_start:
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
la r2, r0, _SDA2_BASE_
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
brlid r15, _crtinit /* Initialize BSS and run program */
nop
brlid r15, exit /* Call exit with the return value of main */
addik r5, r3, 0
/* Control does not reach here */
.end _start
/*
_exit
Our simple _exit
*/
.globl _exit
.align 2
.ent _exit
.type _exit, @function
_exit:
brlid r15,elf_process_exit
nop
.end _exit

87
libgloss/microblaze/crtinit.S Normal file
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/* Copyright (c) 2001, 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.
*/
.globl _crtinit
.align 2
.ent _crtinit
.type _crtinit, @function
_crtinit:
addi r1, r1, -20 /* Save Link register */
swi r15, r1, 0
addi r6, r0, __sbss_start /* clear SBSS */
addi r7, r0, __sbss_end
rsub r18, r6, r7
blei r18, .Lendsbss
.Lloopsbss:
swi r0, r6, 0
addi r6, r6, 4
rsub r18, r6, r7
bgti r18, .Lloopsbss
.Lendsbss:
addi r6, r0, __bss_start /* clear BSS */
addi r7, r0, __bss_end
rsub r18, r6, r7
blei r18, .Lendbss
.Lloopbss:
swi r0, r6, 0
addi r6, r6, 4
rsub r18, r6, r7
bgti r18, .Lloopbss
.Lendbss:
brlid r15, _program_init /* Initialize the program */
nop
brlid r15, __init /* Invoke language initialization functions */
nop
addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */
addi r7, r0, 0
brlid r15, main /* Execute the program */
addi r5, r0, 0
addik r19, r3, 0 /* Save return value */
brlid r15, __fini /* Invoke language cleanup functions */
nop
brlid r15, _program_clean /* Cleanup the program */
nop
lw r15, r1, r0 /* Return back to CRT */
addik r3, r19, 0 /* Restore return value */
rtsd r15, 8
addi r1, r1, 20
.end _crtinit

92
libgloss/microblaze/pgcrtinit.S Normal file
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## Copyright (c) 2001, 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.
.globl _crtinit
.align 2
.ent _crtinit
_crtinit:
addi r1, r1, -20 /* Save Link register */
swi r15, r1, 0
addi r6, r0, __sbss_start /* clear SBSS */
addi r7, r0, __sbss_end
rsub r18, r6, r7
blei r18, .Lendsbss
.Lloopsbss:
swi r0, r6, 0
addi r6, r6, 4
rsub r18, r6, r7
bgti r18, .Lloopsbss
.Lendsbss:
addi r6, r0, __bss_start /* clear BSS */
addi r7, r0, __bss_end
rsub r18, r6, r7
blei r18, .Lendbss
.Lloopbss:
swi r0, r6, 0
addi r6, r6, 4
rsub r18, r6, r7
bgti r18, .Lloopbss
.Lendbss:
brlid r15, _program_init /* Initialize the program */
nop
brlid r15, _profile_init /* Initialize profiling library */
nop
brlid r15, __init /* Invoke language initialization functions */
nop
addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */
addi r7, r0, 0
brlid r15, main /* Execute the program */
addi r5, r0, 0
addik r19, r3, 0 /* Save return value */
brlid r15, __fini /* Invoke language cleanup functions */
nop
brlid r15, _profile_clean /* Cleanup profiling library */
nop
brlid r15, _program_clean /* Cleanup the program */
nop
lw r15, r1, r0 /* Return back to CRT */
addik r3, r19, 0 /* Restore return value */
rtsd r15, 8
addi r1, r1, 20
.end _crtinit

58
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/* 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.
*/
#include <errno.h>
extern char _heap_start[];
extern char _heap[];
extern char _heap_end[];
static char *heap_ptr;
char *sbrk (int nbytes)
{
char *base;
if (!heap_ptr)
heap_ptr = (char *)&_heap;
base = heap_ptr;
heap_ptr += nbytes;
if (heap_ptr <= ((char *)&_heap_end + 1))
return base;
else
{
errno = ENOMEM;
return ((char *)-1);
}
}

69
libgloss/microblaze/sim-crtinit.S Normal file
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## Copyright (c) 2001, 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.
#
#
# sim-crtinit.s
#
# Default second stage of C run-time initialization that does not peform
# BSS initialization to zero. Typical use is on a simulator.
#
.globl _crtinit
.align 2
.ent _crtinit
_crtinit:
addi r1, r1, -20 /* Save Link register */
swi r15, r1, 0
brlid r15, _program_init /* Initialize the program */
nop
brlid r15, __init /* Invoke language initialization functions */
nop
addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */
addi r7, r0, 0
brlid r15, main /* Execute the program */
addi r5, r0, 0
addik r19, r3, 0 /* Save return value */
brlid r15, __fini /* Invoke language cleanup functions */
nop
brlid r15, _program_clean /* Cleanup the program */
nop
lw r15, r1, r0 /* Return back to CRT */
addik r3, r19, 0 /* Restore return value */
rtsd r15, 8
addi r1, r1, 20
.end _crtinit

72
libgloss/microblaze/sim-pgcrtinit.S Normal file
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## Copyright (c) 2001, 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.
#
# sim-pgcrtinit.s
#
# Default second stage of C run-time initialization for use with software
# intrusive profiling. Does not peform BSS initialization to zero.
# (Typical use is on a simulator)
#
.globl _crtinit
.align 2
.ent _crtinit
_crtinit:
addi r1, r1, -20 /* Save Link register */
swi r15, r1, 0
brlid r15, _program_init /* Initialize the program */
nop
brlid r15, _profile_init /* Initialize profiling library */
nop
brlid r15, __init /* Invoke language initialization functions */
nop
addi r6, r0, 0 /* Initialize argc = 1 and argv = NULL and envp = NULL */
addi r7, r0, 0
brlid r15, main /* Execute the program */
addi r5, r0, 0
brlid r15, __fini /* Invoke language cleanup functions */
nop
brlid r15, _profile_clean /* Cleanup profiling library */
nop
brlid r15, _program_clean /* Cleanup the program */
nop
lw r15, r1, r0 /* Return back to CRT */
rtsd r15, 8
addi r1, r1, 20
.end _crtinit

40
libgloss/microblaze/timer.c Normal file
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/* Copyright (c) 2001, 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.
*/
#undef TIME
#undef TIMES
#define __TIMER_DEF__
/*#define NO_PRINTF*/
long time(long *p)
{
return 0L;
}

804
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/* Copyright (c) 1995, 2002, 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.
*/
#ifdef DEBUG
#include <stdlib.h>
#include <stddef.h>
#include <stdio.h>
#else
typedef unsigned int size_t;
#define NULL 0
#endif
#define sbrk xil_sbrk
/* The only extern functions I need if not printing. */
extern void* sbrk(size_t incr);
extern void *memcpy(void *s1, const void *s2, size_t n);
extern void *memset(void *s, int c, size_t n);
typedef unsigned char BOOLEAN;
const BOOLEAN FALSE=0;
const BOOLEAN TRUE =1;
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#define M_DBG_NORMAL 0
#define M_DBG_PARTIAL 1
#define M_DBG_FULL 2
/* debugging breakpoint aids */
static char xil_mem_null_free[] = "xil_mem_null_free";
static char xil_mem_chkcnt [] = "xil_mem_chkcnt";
/* Flag values describing the state of a memory block.
/* Indicator for allocated blk */
#define M_ALLOCEDFLAG 0x5a
/* End-of-block if debug level */
#define M_ALLOCED 0xc99cc99c
/* Free block indicator. */
#define M_FREEFLAG 0xa5
/* End-of-block if debug level */
#define M_FREE 0x9cc99cc9
/* Zero length block. */
#define M_ZEROFLAG 0xaa
/* Header of a memory block. */
typedef unsigned char DATA_T;
typedef DATA_T * DATA_P;
struct M_HEADER
{
unsigned dbglev:2; /* Debug level this was created with. */
unsigned size:22; /* Size of block / 8. 32 Meg max. */
unsigned flag:8; /* Indicates whether allocated or freed. */
};
typedef struct M_HEADER* M_HEADERP;
BOOLEAN isalloced(M_HEADERP this)
{
return this->flag == M_ALLOCEDFLAG;
}
BOOLEAN isfree(M_HEADERP this)
{
return this->flag == M_FREEFLAG;
}
BOOLEAN iszero(M_HEADERP this)
{
return this->flag == M_ZEROFLAG;
}
void setalloced(M_HEADERP this) { this->flag = M_ALLOCEDFLAG; }
void setfree(M_HEADERP this) { this->flag = M_FREEFLAG; }
void setzero(M_HEADERP this) { this->flag = M_ZEROFLAG; }
int getdbglev(M_HEADERP this) { return this->dbglev; }
void setdbglev(M_HEADERP this, int d) { this->dbglev = d; }
size_t getsize(M_HEADERP this) { return this->size << 3; } /* Alignment is 8. */
void setsize(M_HEADERP this, size_t s){ this->size = s >> 3; }
DATA_T * getend(M_HEADERP this) { return (((DATA_T *)this)+getsize(this)); }
/* Next pointer is after data in block. */
M_HEADERP getnext(M_HEADERP this) { return *(((M_HEADERP*)getend(this)) - 1); }
void setnext(M_HEADERP this, M_HEADERP n) { *(((M_HEADERP*)getend(this)) - 1) = n; }
/* Routines used to set a flag at end of block if debuglevel != normal. */
/* Sentinel is right BEFORE the next pointer. */
unsigned long* getsentinel(M_HEADERP this);
void setsentinel(M_HEADERP this, unsigned long lflag);
BOOLEAN testsentinel(M_HEADERP this, unsigned long lflag);
/* Routines to handle data. Depend on debug level. */
DATA_T * getdata(M_HEADERP this) { return (((DATA_T*)this)+sizeof(*this)); }
size_t getdatasize(M_HEADERP this);
/* Fill data with a pattern. */
void setdata(M_HEADERP this, int f);
/* Debug routines */
BOOLEAN checkalloc(M_HEADERP this); /* Is this a valid allocated memory pointer? */
BOOLEAN checkfree(M_HEADERP this); /* Is this a valid freelist entry? */
/* Get length of data. */
size_t
getdatasize(M_HEADERP this)
{
/* By default, size is size of block - size of header. */
int tmp_size = getsize(this) - sizeof(struct M_HEADER);
if (this->dbglev != M_DBG_NORMAL)
{
/* Subtract size of sentinel, and next pointer. */
tmp_size -= sizeof(long) + sizeof(M_HEADERP);
/* If only eight bytes, no room for sentinel. */
if (tmp_size < 0)
tmp_size = 0;
}
else
{
/* Free block always has a next pointer. Otherwise not. */
if (isfree(this))
tmp_size -= sizeof(M_HEADERP);
}
return tmp_size;
}
/* Set the data buffer to value f. */
void
setdata(M_HEADERP this, int f)
{
memset(getdata(this), f, getdatasize(this));
}
/* At the end of the block, there may be a longword with
special meaning. This is the sentinel. If there is a sentinel,
there is by definition a next pointer. */
unsigned long*
getsentinel(M_HEADERP this)
{
DATA_T* addr = (getend(this) - sizeof(M_HEADERP)); /* location of next pointer. */
if (getdata(this) < addr)
return ((unsigned long*)addr) - 1; /* Right before next pointer. */
else
return NULL; /* Block too small. No room for sent. */
}
void
setsentinel(M_HEADERP this, unsigned long lflag)
{
unsigned long* addr = getsentinel(this);
if (addr)
*addr = lflag;
}
BOOLEAN
testsentinel(M_HEADERP this, unsigned long lflag)
{
unsigned long* addr = getsentinel(this);
if (addr)
return *addr == lflag;
else
return TRUE;
}
/* sizeof(struct M_HEADER)+sizeof(M_HEADERP); Alignment */
#define M_BLOCKSIZE 8
/* 4096 / 8; // M_BLOCKSIZE ; Number of freelist entries. */
#define M_FREESIZE 512
/* 64 * 1024; Size of incremental memory hunks allocated, */
#define M_BRKINC 2048
static M_HEADERP freelist[M_FREESIZE]; /* Free list. */
static M_HEADERP alloclist = NULL; /* Pointer to linked list
of Allocated blocks. */
static int mdebuglevel = M_DBG_NORMAL;
static DATA_T zerobuf[M_BLOCKSIZE] = { M_ZEROFLAG, M_ZEROFLAG, M_ZEROFLAG,
M_ZEROFLAG, M_ZEROFLAG, M_ZEROFLAG,
M_ZEROFLAG, M_ZEROFLAG };
static M_HEADERP zeroblock = (M_HEADERP)zerobuf;
static unsigned long totalallocated = 0; /* NOT actually malloced, but
rather the size of the pool. */
static unsigned long totalmalloc = 0; /* Total amount malloced. */
static unsigned long highwater = 0; /* Largest amount of memory
allocated at any time. */
static long nummallocs = 0;
static long numfrees = 0;
static long numreallocs = 0;
int m_prtflag = 0;
int m_stopaddr = 0;
int m_stopcnt = 0;
int m_reenter = 0;
static int m_curcount = 0;
M_HEADERP
getmemblock(size_t n)
{
M_HEADERP block = (M_HEADERP) sbrk(n);
if (block != NULL)
totalallocated += n;
return block;
}
static BOOLEAN
die (char* msg)
{
mdebuglevel = M_DBG_NORMAL;
#ifdef DEBUG
printf ("%s\n", msg);
exit (1);
#else
/* Go into infinite loop. */
for (;;)
;
#endif
return FALSE;
}
int
getfreeindex(size_t size)
{
return MIN(size / M_BLOCKSIZE, M_FREESIZE - 1);
}
static
void coalesce(M_HEADERP h)
{
/* Coalesce block h with free block any free blocks after it.
Assumes that H is currently allocated. Sentinel at end is
set to allocated so if H is free, caller has to fix it. */
for (;;)
{
long i;
M_HEADERP f;
M_HEADERP next = (M_HEADERP)getend(h);
if (next || isalloced(next))
break; /* no more coalscing can be done. */
/* Take it off the free list. */
i = getfreeindex(getsize(next));
f = freelist[i];
if (f == next)
freelist[i] = getnext(next);
else
{
while (f != NULL && getnext(f) != next)
f = getnext(f);
/* Didn't find it in the free list. */
if (f == NULL)
die ("Coalesce failed.");
setnext(f, getnext(next));
}
/* Add two blocks together and start over. */
setsize(h, getsize(h) + getsize(next));
if (getdbglev(h) > M_DBG_NORMAL)
{
setsentinel(h, M_ALLOCED);
}
} /* forever */
}
BOOLEAN
checkalloc(M_HEADERP this)
{
if (!isalloced(this))
return die ("checkalloc: pointer header clobbered.");
if (getdbglev(this) > M_DBG_NORMAL)
{
if (!testsentinel(this, M_ALLOCED))
return die ("checkalloc: pointer length overrun.");
}
return TRUE;
}
BOOLEAN
checkfree(M_HEADERP this)
{
DATA_T *d;
int i;
if (!isfree(this))
die ("checkfree: pointer header clobbered.");
if (getdbglev(this) > M_DBG_NORMAL)
{
if (!testsentinel(this, M_FREE))
die ("checkfree: pointer length overrun.");
d = getdata(this);
i = getdatasize(this);
while (i-- > 0) {
if (*d++ != M_FREEFLAG)
die("checkfree: freed data clobbered.");
}
}
return TRUE;
}
static void
checkfreelist()
{
long i;
for (i = 0; i < M_FREESIZE; i += 1)
{
M_HEADERP h = (M_HEADERP) freelist[i];
while (h != NULL)
{
checkfree(h);
if (i != (M_FREESIZE - 1) && getsize(h) != (i * M_BLOCKSIZE))
die ("checkfreelist: free list size mismatch.");
h = getnext(h);
}
}
}
static void
checkalloclist()
{
M_HEADERP a = (M_HEADERP) alloclist;
while (a != NULL)
{
checkalloc(a);
a = getnext(a);
}
}
/* Free a block of memory. This is done by adding to the free list. */
static void
addtofreelist (M_HEADERP h)
{
long i;
/* Merge freed blocks together. */
coalesce(h);
/* link this block to the front of the appropriate free list. */
i = getfreeindex(getsize(h));
setnext(h, freelist[i]);
freelist[i] = h;
/* Set the flag info. */
setfree(h);
setdbglev(h, mdebuglevel);
if (mdebuglevel > M_DBG_NORMAL)
{
/* Fill with some meaningful (and testable) data. */
setdata(h, M_FREEFLAG);
setsentinel(h, M_FREE);
}
}
void
xil_malloc_verify()
{
int i;
for ( i = 0; i < M_BLOCKSIZE; i += 1)
{
if (zerobuf[i] != M_ZEROFLAG)
die ("malloc_verify: Zero block clobbered.");
}
checkfreelist();
checkalloclist();
}
void
xil_malloc_debug (int level)
{
mdebuglevel = MAX (M_DBG_NORMAL, MIN (M_DBG_FULL, level));
}
void*
xil_malloc (size_t nbytes)
{
int i;
int minf;
int maxf;
size_t msize;
M_HEADERP p;
M_HEADERP h;
nummallocs += 1;
if (nbytes == 0)
return getdata(zeroblock);
if (mdebuglevel == M_DBG_FULL)
{
#ifdef DEBUG
static unsigned do_cnt = ~0;
static unsigned done_cnt = 0;
if (do_cnt == ~0)
{
char *x = (char *)getenv(xil_mem_chkcnt);
do_cnt = 1;
if (x)
do_cnt = atoi(x);
}
if (do_cnt == 1 || done_cnt % do_cnt == 0)
xil_malloc_verify();
done_cnt++;
#else
xil_malloc_verify();
#endif
}
nbytes += sizeof (struct M_HEADER);
/* If debug, leave room for flag and next pointer. */
if (mdebuglevel > M_DBG_NORMAL)
nbytes += sizeof (long) + sizeof (M_HEADERP*);
/* Round up to allocation unit */
msize = ((nbytes + M_BLOCKSIZE - 1) / M_BLOCKSIZE) * M_BLOCKSIZE;
/* Look around for a block of approximately the right size. */
h = NULL;
minf = getfreeindex(msize);
maxf = MIN(minf * 2, M_FREESIZE);
for (i = minf; i < M_FREESIZE; i += 1)
{
if (i >= maxf)
i = M_FREESIZE - 1; /* Skip over blocks too large. */
h = freelist[i];
p = NULL; /* Previous. */
while (h != NULL)
{
if (getsize(h) >= nbytes)
{
/* Take h out of linked list */
if (p)
setnext(p, getnext(h));
else
freelist[i] = getnext(h);
if (!isfree(h))
die ("malloc: freelist clobbered.\n");
goto gotit;
}
else
{
p = h;
h = getnext(h);
}
}
}
/* Didn't find any free pointers. Allocate more heap.
Round up to next heap increment. */
i = ((msize + sizeof(long) + M_BRKINC - 1) / M_BRKINC) * M_BRKINC;
if ((h = getmemblock (i)) == NULL)
{
#ifdef DEBUG
printf ("xil_malloc: Out of dynamic memory.\n");
#endif
return NULL;
}
/* Mark end of block with zero for four bytes so we don't merge next block
into free list accidentally. */
setsize(h, i - sizeof(long));
*((long*)getend(h)) = 0;
gotit:
/* Merge allocated blocks so we can free a bigger part of what is left! */
coalesce(h);
if (getsize(h) >= msize + M_BLOCKSIZE)
{
M_HEADERP r;
int rsize;
/* add the remainder of this block to the free list. */
rsize = getsize(h) - msize;
r = (M_HEADERP) (((DATA_T *)h) + msize);
setsize (r, rsize);
setsize (h, msize);
addtofreelist (r);
}
setalloced(h);
setdbglev(h, mdebuglevel);
if (mdebuglevel > M_DBG_NORMAL)
{
// Chain into alloc'd list and set sentinel. */
setsentinel(h, M_ALLOCED);
setnext(h, alloclist);
alloclist = h;
}
#ifdef DEBUG
if (!m_reenter && m_prtflag)
{
m_reenter = 1;
printf("%d malloc\n",h+1);
fflush(stdout);
if (m_stopaddr)
{
if ((DATA_T *)m_stopaddr == getdata(h))
{
if (m_stopcnt == ++m_curcount)
exit(10);
}
}
m_reenter = 0;
}
#endif
totalmalloc += getsize(h);
if (totalmalloc > highwater)
highwater = totalmalloc;
return getdata(h);
}
void
xil_free(void* ap)
{
M_HEADERP h;
numfrees += 1;
if (ap == NULL)
{
#ifdef DEBUG
if (mdebuglevel != M_DBG_NORMAL && getenv(xil_mem_null_free))
die ("free: tried to free NULL pointer.");
else
return; /* Let `em do it. */
#else
return;
#endif
}
/* Drop through to here if not a smartheap allocation. This
handles free of both xil_malloc and libc malloc. */
h = (M_HEADERP) (((DATA_T *)ap) - sizeof (struct M_HEADER));
if (h == zeroblock)
return;
#ifdef DEBUG
if (!m_reenter && m_prtflag) {
m_reenter = 1;
printf("%d mfree\n",h+1);
fflush(stdout);
m_reenter = 0;
}
#endif
if (!isalloced(h)) {
if (isfree(h))
die ("free: tried to free pointer twice.");
else
die ("free: tried to free a block not allocated by malloc.");
return;
}
if (getdbglev(h) > M_DBG_NORMAL)
{
/* Make sure things look reasonable. */
checkalloc(h);
/* Try to find the pointer in the alloc list. */
if (alloclist == h)
alloclist = getnext(h);
else
{
M_HEADERP a = alloclist;
while (a != NULL && getnext(a) != h)
a = getnext(a);
/* If a is NULL, debuglevel must have been reset at some point. */
if (a != NULL)
setnext(a, getnext(h));
}
}
totalmalloc -= getsize(h);
addtofreelist (h);
if (mdebuglevel == M_DBG_FULL)
{
#ifdef DEBUG
static unsigned do_cnt = ~0;
static unsigned done_cnt = 0;
if (do_cnt == ~0)
{
char *x = (char *)getenv(xil_mem_chkcnt);
do_cnt = 1;
if (x)
do_cnt = atoi(x);
}
if (do_cnt == 1 || done_cnt % do_cnt == 0)
xil_malloc_verify();
done_cnt++;
#else
xil_malloc_verify();
#endif
}
}
unsigned
xil_msize (void* ap)
{
M_HEADERP h = (M_HEADERP) (((DATA_T *)ap) - sizeof (struct M_HEADER));
return getdatasize(h);
}
void*
xil_realloc (void* oldblk, size_t newsize )
{
M_HEADERP h;
size_t oldsize;
void* newblk;
numreallocs += 1;
if (oldblk == NULL)
{
if (mdebuglevel != M_DBG_NORMAL)
die ("realloc: tried to realloc NULL pointer.");
else
return xil_malloc(newsize); /* Don't need to copy anything. */
}
/* Make sure this is a valid block. */
h = (M_HEADERP) (((char*)oldblk) - sizeof (struct M_HEADER));
/* if old block was zero bytes, just alloc a new one. */
if (h == zeroblock)
return xil_malloc(newsize); /* Source is empty anyway. */
/* If old block was already freed, error. */
if (isfree(h))
die ("realloc: tried to realloc freed pointer.");
if (!isalloced(h))
{
long* pdesc = *(long**)h; /* Get pointer to the block descriptor. */
long* pnextdesc = (long*)*pdesc;
if ((pdesc[1] & ~3) != (long)h) /* Should point back to block. */
die ("realloc: header clobbered.");
/* This must be a libc block. We need to figure out how big it is.
Length of block is delta between two descriptors - sizeof (void*). */
oldsize = (size_t) ((pnextdesc[1] & ~3) - (pdesc[1] & ~3)-sizeof(void*));
/* Don't bother to change anything unless there's not enough room. */
if (oldsize < newsize)
{
/* Alloc a new block with our malloc. */
if ((newblk = xil_malloc(newsize)) == NULL )
return NULL ;
/* Copy the old data to it. */
memcpy (newblk, oldblk, (newsize < oldsize) ? newsize : oldsize);
xil_free(oldblk);
return newblk;
}
}
/* If the new size is bigger than my allocated
size, or if more than 1/4 of the block would be left free, allocate
a new block and copy the data. Otherwise, leave well enough alone. */
coalesce(h);
oldsize = getdatasize(h);
if (oldsize < newsize
|| (newsize > (2*M_BLOCKSIZE) && (newsize*4) < (oldsize*3)))
{
if (( newblk = xil_malloc( newsize )) == NULL )
return NULL ;
memcpy (newblk, oldblk, (newsize < oldsize) ? newsize : oldsize);
xil_free (oldblk);
return newblk;
}
else
return oldblk;
}
void*
xil_calloc (size_t number, size_t size)
{
long* longptr ;
void* blockptr ;
size_t temp = number * size + sizeof (long) - 1;
temp -= temp % sizeof (long);
blockptr = xil_malloc( temp );
if ( blockptr != 0 )
{
longptr = (long*) blockptr ;
temp /= sizeof (long);
while ( temp-- > 0 )
{
*longptr++ = 0 ;
}
}
return blockptr ;
}
#define M_STAT_NORMAL 0
#define M_STAT_VERBOSE 1
#define M_STAT_REALLYVERBOSE 2
#ifdef DEBUG
void
xil_mstats(int verbosity)
{
unsigned long totalfree = 0;
int i;
printf("Memory Statics:\n"
"---------------\n");
printf(" Number of calls to malloc: %ld.\n", nummallocs);
printf(" Number of calls to free: %ld.\n", numfrees);
printf(" Number of calls to realloc: %ld.\n", numreallocs);
printf(" Total allocated memory: %lu (0x%lx)\n",
totalallocated, totalallocated);
printf(" Currently malloced memory: %lu (0x%lx)\n",
totalmalloc, totalmalloc);
fflush(stdout);
for (i = 0; i < M_FREESIZE; i += 1)
{
M_HEADERP h = freelist[i];
unsigned long numblocks = 0;
while (h != NULL)
{
totalfree += getsize(h);
numblocks += 1;
h = getnext(h);
}
if (verbosity > M_STAT_NORMAL && numblocks > 0)
{
printf(" There are %d blocks on freelist for size %d\n",
numblocks, i * M_BLOCKSIZE);
fflush(stdout);
}
}
printf(" Currently free memory: %lu (0x%lx)\n",
totalfree, totalfree);
printf(" High water mark: %lu (0x%lx)\n",
highwater, highwater);
printf("\n");
fflush(stdout);
}
#else
void
xil_mstats(int verbosity)
{
}
#endif

46
libgloss/microblaze/xil_sbrk.c Normal file
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@ -0,0 +1,46 @@
/* Copyright (c) 1995, 2002, 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.
*/
#define sbrk xil_sbrk
char memblk[65536];
int memindex = 0;
void *
sbrk(int size)
{
int oldindex;
oldindex = memindex;
memindex += size;
if (memindex >= 65536)
return 0;
return (void *)(&memblk[oldindex]);
}

180
libgloss/microblaze/xilinx.ld Normal file
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@ -0,0 +1,180 @@
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