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/mosPublic

Commitb203f33

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Update install instructions
1 parentfaf25e0 commitb203f33

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6 files changed

+28
-23
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6 files changed

+28
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‎README.md‎

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@@ -69,12 +69,16 @@ mOS is the unix-like operating system developed from scratch and aims to POSIX c
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**Ubuntu**
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- Install packakges
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```bash
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$ sudo apt install build-essential autopoint bison gperf texi2html texinfo qemu automake-1.15 nasm xorriso qemu-system-i386
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```
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- Install gcc cross compilier viahttps://wiki.osdev.org/GCC_Cross-Compiler#The_Build
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- Install GCC (Version 9.1.0) & Binutils (Version 2.32).
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- Open src/toolchain/build.sh and modify SYSROOT and PREFIX variables to fit in your case
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```
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PREFIX="$HOME/opt/cross"
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TARGET=i386-pc-mos
@@ -84,19 +88,18 @@ mOS is the unix-like operating system developed from scratch and aims to POSIX c
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```
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- Install mos toolchain
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```
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$ cd src/toolchain
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$ ./build
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$ ./build.sh
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```
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- Run Emulator
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```
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$ cd src && mkdir logs
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$ ./create_image.sh
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$ cd src/ports/bash && ./package.sh
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$ cd src/ports/coreutils && ./package.sh
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$ cd ports/figlet && ./package.sh && cd ../..
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$ cd ports/bash && ./package.sh make && cd ../..
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$ cd ports/coreutils && ./package.sh make && cd ../..
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$ ./build.sh qemu iso
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```
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@@ -110,13 +113,12 @@ mOS is the unix-like operating system developed from scratch and aims to POSIX c
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```
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✍️ To get userspace address for debugging
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```
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$ i386-mos-readelf -e program
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# find the line below and copy Addr
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# [Nr] Name Type Addr Off Size ES Flg Lk Inf Al
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# [ x] .text PROGBITS xxx xxx xxx 00 AX 0 0 4
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```
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```
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$ i386-mos-readelf -e program
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# find the line below and copy Addr
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# [Nr] Name Type Addr Off Size ES Flg Lk Inf Al
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# [ x] .text PROGBITS xxx xxx xxx 00 AX 0 0 4
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```
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**Unit Test**
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‎src/create_image.sh‎

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@@ -37,15 +37,15 @@ if [[ "$unamestr" == 'Linux' ]]; then
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cd ../..
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cd apps/calculator&& make clean&& make
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cd ../..
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cd apps/ld&& rm -f ld&& i386-mos-gcc -g ld.c -o ld
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cd apps/ld&& rm -f ld&& i386-pc-mos-gcc -g ld.c -o ld
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cd ../..
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fordirin apps/cmd/*
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do
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[-d"$dir" ]||continue
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name=$(basename$dir)
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rm -f$dir/$name
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i386-mos-gcc -g$dir/$name.c -o$dir/$name
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i386-pc-mos-gcc -g$dir/$name.c -o$dir/$name
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sudo cp$dir/$name"/mnt/${DISK_NAME}/bin"
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done
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‎src/libraries/libc/Makefile‎

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@@ -7,8 +7,8 @@ HEADERS = $(wildcard *.h **/*.h)
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# Nice syntax for file extension replacement
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LIBC_OBJ = ${A_SOURCES:.S=.o} ${C_SOURCES:.c=.o}
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CC = i386-mos-gcc
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AR = i386-mos-ar
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CC = i386-pc-mos-gcc
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AR = i386-pc-mos-ar
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# -g: Use debugging symbols in gcc
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CFLAGS= -g -std=gnu99 -Wall -Wextra -Wno-unused-parameter -Wno-discarded-qualifiers -Wno-comment -Wno-multichar -Wno-sequence-point -Wno-switch -Wno-unused-function -Wno-unused-value -Wno-sign-compare -Wno-implicit-fallthrough

‎src/ports/coreutils/package.sh‎

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@@ -22,14 +22,16 @@ then
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cd gnulib
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patch -p1<$CURRENT_DIR/gnulib.patch
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cd ..
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# cross-compiling has the issue of missing primes.h -> we use native tool to generate primes.h
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./configure ac_cv_header_sys_cdefs_h=yes ac_cv_header_sys_sysctl_h=xyes
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make -j4 CFLAGS="-Wno-error=suggest-attribute=const -Wno-error=stringop-overflow"
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make distclean
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# ports/coreutils
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cd$CURRENT_DIR
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rm -rf build-coreutils&& mkdir build-coreutils&&cd build-coreutils
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# cross-compiling has the issue of missing primes.h -> we use native tool to generate primes.h
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$COREUTILS_DIR/configure ac_cv_header_sys_cdefs_h=yes
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make -j4 CFLAGS="-Wno-error=suggest-attribute=const"
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fi
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# ports/coreutils

‎src/ports/figlet/package.sh‎

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@@ -15,7 +15,7 @@ cd figlet-2.2.5
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patch -p1< ../figlet-2.2.5.patch
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make clean
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make CC=i386-mos-gcc LD=i386-mos-gcc
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make CC=i386-pc-mos-gcc LD=i386-pc-mos-gcc
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sudo mkdir"/mnt/${DISK_NAME}"
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sudo mount -o loop ../../../hdd.img"/mnt/${DISK_NAME}"

‎src/toolchain/build.sh‎

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Original file line numberDiff line numberDiff line change
@@ -2,7 +2,7 @@
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set -Eeuo pipefail
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PREFIX="$HOME/opt/cross"
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TARGET=i386-mos
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TARGET=i386-pc-mos
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# SYSROOT cannot locate inside PREFIX
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SYSROOT="$HOME/Projects/mos/src/toolchain/sysroot"
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JOBCOUNT=$(nproc)
@@ -49,6 +49,7 @@ gcc_fetch() {
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gcc_build() {
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cd gcc-9.1.0
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patch -p1< ../gcc-9.1.0.patch
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./contrib/download_prerequisites
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cd ..&& mkdir build-gcc
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cd build-gcc
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../gcc-9.1.0/configure --target=$TARGET --prefix="$PREFIX" --with-sysroot=$SYSROOT --enable-languages=c,c++

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