From 3e7cf10d75ad9942574b9bedad5270eb4536af27 Mon Sep 17 00:00:00 2001
From: Roberto Hexsel <roberto@inf.ufpr.br>
Date: Wed, 8 Mar 2017 09:55:29 -0300
Subject: [PATCH] improved instructions to build and install mips-gcc
---
cMIPS/bin/build.sh | 11 ++++----
cMIPS/docs/installCrosscompiler | 38 +++++++++++++++++++------
cMIPS/tests/doTests.sh | 2 +-
cMIPS/tests/pointer.c | 49 +++++++++++++++++++++++++++++++++
cMIPS/tests/pointer.expected | 7 +++++
5 files changed, 92 insertions(+), 15 deletions(-)
create mode 100644 cMIPS/tests/pointer.c
create mode 100644 cMIPS/tests/pointer.expected
diff --git a/cMIPS/bin/build.sh b/cMIPS/bin/build.sh
index ff83ee5..f06adcf 100755
--- a/cMIPS/bin/build.sh
+++ b/cMIPS/bin/build.sh
@@ -25,7 +25,8 @@ cat <<EOF
$0: error in compiling VHDL sources
-
+ remove cMIPS/vhdl/.last_import and cMIPS/vhdl/work-obj93.cf
+ and re-compile
EOF
exit 1
@@ -74,14 +75,12 @@ src="aux.vhd altera.vhd macnica.vhd cache.vhd instrcache.vhd sdram.vhd ram.vhd r
#ghdl -a --ieee=standard "${srcVHDL}"/packageMemory.vhd || exit 1
#ghdl -a --ieee=standard "${srcVHDL}"/packageExcp.vhd || exit 1
#for F in ${src} ; do
-# if [ ! -s ${F}.o -o "${srcVHDL}"/${F}.vhd -nt ${F}.o ] ; then
-# ghdl -a --ieee=standard "${srcVHDL}"/${F}.vhd || exit 1
+# if [ ! -s ${F%.vhd}.o -o "${srcVHDL}"/${F} -nt ${F%.vhd}.o ] ; then
+# ghdl -a --ieee=standard "${srcVHDL}"/${F} || exit 1
# fi
#done
#
-#ghdl -c "${srcVHDL}"/*.vhd -e ${simulator} || exit 1
-
-
+#ghdl -c "${srcVHDL}"/*.vhd -e ${simulator} || exit 1
# NOTE: when you add a new sourcefile to this project, you must include it
diff --git a/cMIPS/docs/installCrosscompiler b/cMIPS/docs/installCrosscompiler
index a816ed9..e1350f4 100644
--- a/cMIPS/docs/installCrosscompiler
+++ b/cMIPS/docs/installCrosscompiler
@@ -1,24 +1,30 @@
###
### this file in NOT a shell script,
-### yet it was written to make it easy for cutting-n-pasting with the pointer
+### yet it was written to make it easy for cutting-n-pasting with the mouse
###
# to compile GCC, these three libraries may have to be fetched:
-wget http://www.mpfr.org/mpfr-current/mpfr-3.1.3.tar.gz
-wget ftp://ftp.gnu.org/gnu/mpc/mpc-1.0.2.tar.gz
-wget ftp://ftp.gmplib.org/pub/gmp/gmp-6.0.0.tar.bz2
+wget http://www.mpfr.org/mpfr-current/mpfr-3.1.5.tar.gz
+wget ftp://ftp.gnu.org/gnu/mpc/mpc-1.0.3.tar.gz
+wget ftp://ftp.gmplib.org/pub/gmp/gmp-6.1.2.tar.bz2
+
+# it is (very) likely that new(er) versions have been released; please
+# fetch the new(est) versions.
# and, according to instructions in
# http://gcc.gnu.org/install/prerequisites.html
-# expand the tarballs into the directory with GCC sources, change their
+# after you downloaded and expanded the GCC sources, expand the three
+# tarballs into the directory with GCC sources, change their
# directory names to mpfr mpc gmp (removing the version suffixes);
-# these libraries are then compiled along with GCC
+# then these libraries will be automagically compiled as part of GCC.
# OTOH, if you are very lucky, the libraries installed by aptitude will do...
# fetch all the auxiliary programs -- this assumes a Debian installation
aptitude install make flex bison libgmp-dev libmpfr-dev libmpc-dev g++
+
+# clean up any aliases/function replacements for /bin/ls
unset ls
# make sure the installed files are read-exec by all
@@ -33,12 +39,17 @@ COMPILER=gcc-5.1.0
wget -c http://ftp.gnu.org/gnu/binutils/${BINUTILS}.tar.bz2
wget -c http://ftp.gnu.org/gnu/gcc/${COMPILER}/${COMPILER}.tar.gz
+# the cross-compiler will be installed in /opt/cross so it does not,
+# in any way, conflicts with the native GCC or binutils.
+
# set the installation pathname as PREFIX so that {bin,lib,man} are put there
# make sure you have write permission to /opt/cross,
# else perform the "make install" steps as root (with umask 022)
export PREFIX=/opt/cross/
export TARGET=mips
+## build and install binutils (takes a few minutes)
+
tar -xvjf ${BINUTILS}.tar.bz2
cd ${BINUTILS}
./configure --target=$TARGET --prefix=$PREFIX --disable-nls
@@ -49,10 +60,20 @@ make
make install
cd ..
+## build and install GCC (takes rather more than a few minutes)
+
tar -xvzf ${COMPILER}.tar.gz
cd ${COMPILER}
-# you may want/need to expand the libraries' tarballs at this point
+# you may want/need to expand the libraries' tarballs at this point,
+# by doing
+# [[ do not copy these commands unless versions are same as shown below ]]
+# tar -xvjf ../gmp-6.1.2.tar.bz2
+# mv gmp-6.1.2/ gmp
+# tar -xvzf ../mpc-1.0.3.tar.gz
+# mv mpc-1.0.3/ mpc
+# tar -xxvf ../mpfr-3.1.5.tar.xz
+# mv mpfr-3.1.5/ mpfr
export PATH=$PATH:$PREFIX/bin
./configure --target=$TARGET --prefix=$PREFIX --disable-nls \
@@ -66,6 +87,7 @@ cd ..
# once GCC and Binutils are compiled and installed, all that is needed is
# for you to add the new path to your PATH, preferably in your ~/.bashrc
+# do not forget to substitute ${PREFIX} by /opt/cross in ~/.bashrc
export PATH=${PATH}:${PREFIX}/bin
export MANPATH=${MANPATH}:${PREFIX}/man
@@ -83,7 +105,7 @@ export MANPATH=${MANPATH}:${PREFIX}/man
# to download the .deb files onto the same directory as ghdl*.deb
#
# When doing dpkg -i ghdl*.deb it will whine and complain about versions.
-# What I have done is to use the following DANGEROUS and RISKY command:
+# What I have done is to use the following RISKY command:
#
# dpkg --ignore-depends=ghdl*.deb --ignore-depends=libgnat-4.6 -i ghdl*.deb
#
diff --git a/cMIPS/tests/doTests.sh b/cMIPS/tests/doTests.sh
index c746be6..f75510c 100755
--- a/cMIPS/tests/doTests.sh
+++ b/cMIPS/tests/doTests.sh
@@ -105,7 +105,7 @@ fi
c_small="divmul fat fib count sieve ccitt16 gcd matrix negcnt reduz rand"
-c_types="xram sort-byte sort-half sort-int memcpy"
+c_types="pointer xram sort-byte sort-half sort-int memcpy"
c_sorts="bubble insertion merge quick selection shell"
c_FPU="FPU_m"
diff --git a/cMIPS/tests/pointer.c b/cMIPS/tests/pointer.c
new file mode 100644
index 0000000..daae9c7
--- /dev/null
+++ b/cMIPS/tests/pointer.c
@@ -0,0 +1,49 @@
+#include <cMIPS.h>
+
+#define NIL ((void *)0)
+
+typedef struct elem {
+ struct elem *next;
+ int vet[3];
+} elemType;
+
+elemType strct[16];
+elemType *head;
+
+elemType *insert(elemType *h, elemType *e) {
+ elemType *p;
+
+ p = h;
+ while ((void *)p->next != NIL) {
+ p = p->next;
+ }
+ p->next = e;
+ e->next = NIL;
+ return e;
+}
+
+
+int main(void) {
+ int i,j;
+ elemType *x;
+
+ head = &(strct[0]);
+
+ for (i=0; i < 5; i++) { // initialize 5 elements, not in sequence
+ j = 2*i + 5;
+ // print((int)&(strct[j])); // print address of strct's element
+ x = insert(head, &(strct[j]));
+ x->vet[1] = j;
+ }
+
+ to_stdout('\n'); // print blank line
+
+ x = head->next; // get first element
+ for (i=0; i < 5; i++) {
+ print(x->vet[1]);
+ x = x->next; // get next element
+ }
+
+ to_stdout('\n'); // print blank line
+
+}
diff --git a/cMIPS/tests/pointer.expected b/cMIPS/tests/pointer.expected
new file mode 100644
index 0000000..90721f6
--- /dev/null
+++ b/cMIPS/tests/pointer.expected
@@ -0,0 +1,7 @@
+
+00000005
+00000007
+00000009
+0000000b
+0000000d
+
--
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