sh-elf-vhex - v2.0.0-dev9 : rework uninstall operation + various fixes
*add* > [scripts] | [_uninstall] support `--purge` option to remove the cloned folder | [_utils] export `utils_warn_callcmd` which throw warning if cmd fail | [bootstrap] support `--overwrite` option to force-reinstall *update* > [scripts] | [bootstrap] rename default sysroot with underscore as prefix *fix* > [scripts] | [_uninstall] use the new _utils.sh helpers | [_uninstall] proper remove symlink in install prefix | [_uninstall] proper remove the sysroot | [_uninstall] check `sh-elf-vhex-as` instead of `sh-elf-vhex-gcc` | [_utils] fix local variable declaration | [_utils] fix pushd/popd handling | [binutils/config] fix missing `gcc` as dependency for all target | [binutils/config] fix missing `gcc-g++` for Fedora | [binutils/config] fix bad package search for Fedora | [bootstrap] proper support curl operation | [gcc/config] allow dependencies install fail with warning
This commit is contained in:
YannMagnin
parent
6570192f44
commit
1d7a36e5f0
80
README.md
80
README.md
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@ -1,17 +1,20 @@
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# sh-elf-vhex - modified GCC for the Vhex kernel projet
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## Context
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This project was born following the discovery of a limitation with GCC on the
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SuperH architecture [see on this subject from 2 years ago](https://gcc.gnu.org/legacy-ml/gcc-help/current/000075.html):
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SuperH architecture
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[see on this subject from 2 years ago](
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https://gcc.gnu.org/legacy-ml/gcc-help/current/000075.html
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):
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The generation of dynamic libraries is blocked by GCC (the `--shared` flag is ignored),
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because the `sh3eb-elf` target (the one used for cross-compiling on Casio calculators),
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does not support this functionality.
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I am currently building a kernel of a Casio's calculator for a graduation
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project and I need this functionality. I had discovered, thanks to Lephenixnoir,
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I am currently building a kernel for Casio's calculator for a graduation
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project and I need this functionality. I had discovered, thanks to
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[Lephenixnoir](https://silent-tower.net/research/),
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that we could generate 'shared' libraries by using directly `ld` with a custom
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linker script, but this workaround was of short duration. Indeed, we are
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dependent on a library called `libgcc`, which provide some useful critical
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@ -27,47 +30,10 @@ This repository gathers only the files that we had to modify for
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`binutils` and` GCC`, as well as scripts to automate the installation of this
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particular GCC.
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## Build
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The build is relatively simple and can be done in two different ways: you can
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use the `compile.sh` script which is at the root of the repository:
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```bash
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./compile /your/installation/path
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```
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Or you can use the `giteapc` tool, created by Lephenixnoir:
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```bash
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giteapc install sh-elf-vhex
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```
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It takes about twenty minutes for the build.
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## Technical notes
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The GCC build takes much longer than the `sh3eb-elf` target because we have two
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stages for the GCC build. In order, we have:
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* download + configuration of binutils sources
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* download + configuration of GCC sources
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* compilation of binutils
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* compilation of GCC (stage-1) without enabling the shared library functionality
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* compilation of OpenLibM (a dependency of our standard C library)
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* compilation of fxlibc, our custom C standard library
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* compilation of GCC (stage-2) with activation of the shared library fonctionality
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* installation of our C library
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* compilation of the shared libgcc
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As for the details of the `sh-elf-vhex` target that we created:
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* machine-specific features:
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* (`t-slibgcc`) compilation of the shared libgcc
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* (`t-libgcc-pic`) the compilation of the libgcc in PIC
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* (`t-fdpbit`) compilation of the library for emulated floating point numbers
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* global configuration:
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* only C is supported
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* only big endian encoding is supported
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* we use the stdint header from `newlib`. Otherwise, the generation of `stdint.h` is incomplete
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@ -76,8 +42,36 @@ As for the details of the `sh-elf-vhex` target that we created:
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* by default, we link our own C library to each generation of an object file
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* we do not provide a specialized default linker script (for the moment)
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## Installing
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The build is relatively simple and can be done in two different ways:
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```bash
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curl -s "https://github.com/YannMagnin/sh-elf-vhex/+/HEAD/scripts/bootstrap.sh?format=TEXT" | base64 --decode | bash
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```
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Or by cloning the project and using the `bootstrap.sh` script, see
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`./scripts/bootstrap.sh --help` for more information about possible operation
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you can do with it (like uninstalling the compiler)
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```bash
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cd /tmp/
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git clone 'https://github.com/YannMagnin/sh-elf-vhex.git' --depth=1
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cd /tmp/sh-elf-vhex || exit 1
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./script/bootstrap.sh
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```
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It takes about twenty minutes for the build.
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## Supported version list
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Note that GCC `12.x` will never be supported since many critical bugs has been
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found for the superh backend
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(https://gcc.gnu.org/bugzilla/show\_bug.cgi?id=106609)
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- GCC `11.2.0` and binutils `2.31`
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## Special thanks
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A big thanks to Lephenixnoir who helped me a lot for the modification of the
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sources and made this project possible!
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A big thanks to [Lephenixnoir](https://silent-tower.net/research/) who helped
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me a lot for the modification of the sources and made this project possible!
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@ -7,12 +7,16 @@
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function help()
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{
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cat << EOF
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Script for the uninstallation of the Vhex kernel's binutils.
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Script for the uninstallation of sh-elf-vhex
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Usage $0 [options...]
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Configurations:
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-h, --help Display this help
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--prefix-install Installation (bin) prefix
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--prefix-sysroot Sysroot (lib, header, ...) prefix
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--prefix-clone Clone prefix
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--purge Remove the clonned folder
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EOF
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exit 0
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}
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@ -21,47 +25,59 @@ EOF
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# Parse arguments
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#---
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prefix_install=''
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prefix_sysroot=''
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prefix_clone=''
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purge='false'
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for arg
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do case "$arg" in
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--help | -h) help;;
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--help | -h) help;;
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--purge) purge='true';;
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--prefix-install=*) prefix_install=${arg#*=};;
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--prefix-sysroot=*) prefix_sysroot=${arg#*=};;
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--prefix-clone=*) prefix_clone=${arg#*=};;
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*)
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echo "error: unreconized argument '$arg', giving up." >&2
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exit 1
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esac
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done
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#---
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# Preliminary check
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#---
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if [[ -z "$prefix_install" || -z "$prefix_sysroot" || -z "$prefix_clone" ]]
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then
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echo 'Missing prefix information, abord' >&2
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exit 1
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fi
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if [[ ! -f "$prefix_sysroot/bin/sh-elf-vhex-as" ]]
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then
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echo 'error: Are you sure to have built sh-elf-vhex ? it seems that' >&2
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echo ' Missing '\''sh-elf-vhex-as'\'' tool...' >&2
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exit 1
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fi
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#---
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# Unistall step
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#---
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source ../scripts/_utils.sh
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TAG='<sh-elf-vhex>'
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PREFIX=$(utils_get_env 'VHEX_PREFIX_INSTALL' 'install')
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SYSROOT=$(utils_get_env 'VHEX_PREFIX_SYSROOT' 'sysroot')
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# Check that all tools has been generated
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if [[ ! -f "$SYSROOT/bin/sh-elf-vhex-gcc" ]]
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then
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echo 'error: Are you sure to have built sh-elf-vhex ? it seems that' >&2
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echo ' Missing '\''gcc'\'' tool...' >&2
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exit 1
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fi
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#---
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# Remove symlinks
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#---
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_src=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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cd "$_src" || exit 1
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source ./_utils.sh
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echo "$TAG Removing symlinks to binaries..."
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for x in "$SYSROOT"/bin/*; do
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unlink "$PREFIX/$x"
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for x in "$prefix_sysroot"/bin/*; do
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utils_callcmd unlink "$x"
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utils_callcmd unlink "$prefix_install/$(basename "$x")"
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done
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#---
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# Remove sysroot
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#---
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echo "$TAG Removing sysroot..."
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rm -rf "$prefix_sysroot"
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echo "$TAG Removing installed files..."
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rmdir "$SYSROOT"
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if [[ "$purge" == 'true' ]]
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then
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echo "$TAG removing cloned folder..."
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rm -rf "$prefix_clone"
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fi
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@ -18,6 +18,8 @@ export TAG='<sh-elf-vhex>'
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function utils_find_last_version()
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{
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local _version
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_version=$(find "$1/" -maxdepth 1 -type d,l)
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_version=$(echo "$_version" | sort -r )
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_version=$(echo "$_version" | head -n 1)
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@ -45,8 +47,32 @@ function utils_callcmd()
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fi
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}
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function utils_warn_callcmd()
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{
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if [[ -v 'VERBOSE' && "$VERBOSE" == '1' ]]
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then
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echo "$@"
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if ! "$@"; then
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echo "$TAG warning: command failed, skipped"
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return 1
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fi
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return 0
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else
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out='shelfvhex_crash.txt'
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if ! "$@" >"$out" 2>&1; then
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echo "$TAG warning: command failed, please check $(pwd)/$out" >&2
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echo "$@" >&2
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return 1
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fi
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rm -f "$out"
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return 0
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fi
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}
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function utils_makecmd()
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{
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local cores
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[[ $(uname) == "OpenBSD" ]] \
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&& cores=$(sysctl -n hw.ncpu) \
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|| cores=$(nproc)
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@ -58,10 +84,17 @@ function utils_makecmd()
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function utils_archive_download()
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{
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pushd '.' > /dev/null || exit 1
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local url
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local output
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local cached
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local src
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url=$1
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output=$2
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cached=$3
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archive="/tmp/sh-elf-vhex/$(basename "$url")"
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src=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)
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archive="$src/../_cache/$(basename "$url")"
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if [[ -d "$output/archive" ]]
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then
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@ -89,13 +122,14 @@ function utils_archive_download()
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echo "$TAG Extracting $archive..."
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mkdir -p "$output/archive" && pushd "$output/archive" > /dev/null || exit 1
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mkdir -p "$output/archive" && cd "$output/archive" || exit 1
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unxz -c < "$archive" | tar --strip-components 1 -xf -
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popd > /dev/null || exit 1
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if [[ "$cached" != 'true' ]]
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then
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echo "$TAG Removing $archive..."
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rm -f "$archive"
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fi
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popd > /dev/null || exit 1
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}
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@ -86,28 +86,28 @@ fi
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if command -v pkg >/dev/null 2>&1
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then
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deps='cmake libmpfr libmpc libgmp libpng flex clang git texinfo'
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deps="$deps libisl bison xz-utils"
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deps="$deps libisl bison xz-utils gcc"
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pm='pkg'
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pm_has='dpkg -s'
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pm_install='ASSUME_ALWAYS_YES=yes pkg install'
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elif command -v apt >/dev/null 2>&1
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then
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deps='cmake libmpfr-dev libmpc-dev libgmp-dev libpng-dev libppl-dev'
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deps="$deps flex g++ git texinfo xz-utils"
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deps="$deps flex g++ git texinfo xz-utils gcc"
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pm='apt'
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pm_has='dpkg -s'
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pm_install='sudo apt install -y'
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elif command -v dnf >/dev/null 2>&1
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then
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deps='cmake mpfr-devel libmpc-devel gmp-devel libpng-devel ppl-devel'
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deps="$deps flex gcc git texinfo xz"
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deps="$deps flex gcc git texinfo xz gcc-c++"
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pm='dnf'
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pm_has="echo '$(rpm -qa)' | grep -i"
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pm_has='dnf list installed | grep -i'
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pm_install='sudo dnf install -y'
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fix='-'
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fix='^'
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elif command -v pacman >/dev/null 2>&1
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then
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deps='cmake mpfr libmpc gmp libpng ppl flex gcc git texinfo xz'
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deps='cmake mpfr libmpc gmp libpng ppl flex gcc git texinfo xz gcc'
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pm='pacman'
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pm_has='pacman -Qi'
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pm_install='sudo pacman -S --noconfirm'
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@ -118,7 +118,7 @@ fi
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missing=''
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if [[ -z "$trust_deps" ]]; then
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for d in $deps; do
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if ! bash -c "$pm_has $d$fix" >/dev/null 2>&1; then
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if ! bash -c "$pm_has $fix$d" >/dev/null 2>&1; then
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missing="$missing $d"
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fi
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done
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@ -16,6 +16,7 @@ Options:
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--prefix-install Installation (bin) prefix
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--prefix-sysroot Sysroot (lib, header, ...) prefix
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--prefix-clone Clone prefix
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--overwrite Remove the cloned version if exists and install
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--uninstall Uninstall operation
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Notes:
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@ -34,7 +35,7 @@ action='install'
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verbose='false'
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overwrite='false'
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prefix_install=~/.local/bin
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prefix_sysroot=~/.local/share/sh-elf-vhex/sysroot
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prefix_sysroot=~/.local/share/sh-elf-vhex/_sysroot
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prefix_clone=~/.local/share/sh-elf-vhex
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for arg; do
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@ -53,15 +54,42 @@ for arg; do
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done
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#---
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# Preliminary check
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# Handle self-clone if needed
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#---
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# export verbose now to handle the self-clone if needed
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[[ "$verbose" == 'true' ]] && export VERBOSE=1
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_src=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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cd "$_src" || exit 1
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if [[ "$prefix_clone/scripts" != "$_src" ]]
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then
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if [[ -d "$prefix_clone" && "$overwrite" != 'true' ]]
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then
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echo -e \
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"It seems that the project is already existing :pouce:\n" \
|
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'If you realy want to install this project use the "--overwrite"' \
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'option.'
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exit 1
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fi
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[[ -d "$prefix_clone" ]] && rm -rf "$prefix_clone"
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echo '<sh-elf-vhex> self-clone repository...'
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utils_callcmd \
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git \
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clone \
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--depth=1 \
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https://github.com/YannMagnin/sh-elf-vhex.git \
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"$prefix_clone"
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fi
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cd "$prefix_clone/scripts" || exit 1
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source ./_utils.sh
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#---
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# Preliminary checks
|
||||
#---
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||||
|
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version_gcc=$(utils_find_last_version ../patches/gcc)
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version_binutils=$(utils_find_last_version ../patches/binutils)
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||||
|
|
@ -92,35 +120,11 @@ if [[ "$valid" != 'y' ]]; then
|
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exit 1
|
||||
fi
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|
||||
[[ "$verbose" == 'true' ]] && export VERBOSE=1
|
||||
|
||||
#---
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# Perform install operation
|
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# Performs install/uninstall operation
|
||||
#---
|
||||
|
||||
if [[ "$prefix_clone/scripts" != "$_src" ]]
|
||||
then
|
||||
if [[ -d "$prefix_clone" && "$overwrite" != 'true' ]]
|
||||
then
|
||||
echo -e \
|
||||
"It seems that the project is already existing :pouce:\n" \
|
||||
'If you realy want to install this project use the "--overwrite"' \
|
||||
'option.'
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||||
exit 1
|
||||
fi
|
||||
[[ -d "$prefix_clone" ]] && rm -rf "$prefix_clone"
|
||||
utils_callcmd \
|
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git \
|
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clone \
|
||||
--depth=1 \
|
||||
https://github.com/YannMagnin/sh-elf-vhex.git \
|
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"$prefix_clone"
|
||||
else
|
||||
echo "WARNING: bootstrap script used in cloned folder, skipped updated" >&2
|
||||
fi
|
||||
|
||||
cd "$prefix_clone/scripts" || exit 1
|
||||
|
||||
if [[ "$action" == 'install' ]]
|
||||
then
|
||||
{
|
||||
|
|
@ -143,7 +147,11 @@ then
|
|||
echo "Do not forget to export the binary path '$prefix_install'"
|
||||
else
|
||||
{
|
||||
./scripts/_uninstall.sh
|
||||
./_uninstall.sh \
|
||||
--prefix-sysroot="$prefix_sysroot" \
|
||||
--prefix-install="$prefix_install" \
|
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--prefix-clone="$prefix_clone" \
|
||||
--purge
|
||||
} || {
|
||||
echo 'Error during unstallation step, abort' >&2
|
||||
exit 1
|
||||
|
|
|
|||
|
|
@ -111,4 +111,12 @@ mkdir ./build
|
|||
echo "$TAG install dependencies..."
|
||||
|
||||
cd ./archive || exit 1
|
||||
utils_callcmd ./contrib/download_prerequisites
|
||||
if ! utils_warn_callcmd ./contrib/download_prerequisites
|
||||
then
|
||||
echo "The installation of GCC's prerequisites have failed"
|
||||
read -p 'Do you want to continue the installation ? [yN]: ' -r valid
|
||||
if [[ "$valid" != 'y' ]]; then
|
||||
echo 'Operation aborted o(x_x)o'
|
||||
exit 1
|
||||
fi
|
||||
fi
|
||||
|
|
|
|||
Loading…
Reference in New Issue