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Diffstat (limited to 'eclass/java-vm-2.eclass')
| -rw-r--r-- | eclass/java-vm-2.eclass | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/eclass/java-vm-2.eclass b/eclass/java-vm-2.eclass new file mode 100644 index 000000000000..4e053deb0ea9 --- /dev/null +++ b/eclass/java-vm-2.eclass @@ -0,0 +1,339 @@ +# Copyright 1999-2017 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# @ECLASS: java-vm-2.eclass +# @MAINTAINER: +# java@gentoo.org +# @BLURB: Java Virtual Machine eclass +# @DESCRIPTION: +# This eclass provides functionality which assists with installing +# virtual machines, and ensures that they are recognized by java-config. + +case ${EAPI:-0} in + 5|6) ;; + *) die "EAPI=${EAPI} is not supported" ;; +esac + +inherit fdo-mime multilib pax-utils prefix + +EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm pkg_postrm + +RDEPEND=" + >=dev-java/java-config-2.2.0-r3 + >=app-eselect/eselect-java-0.2.0" +DEPEND="${RDEPEND}" + +export WANT_JAVA_CONFIG=2 + + +# @ECLASS-VARIABLE: JAVA_VM_CONFIG_DIR +# @INTERNAL +# @DESCRIPTION: +# Where to place the vm env file. +JAVA_VM_CONFIG_DIR="/usr/share/java-config-2/vm" + +# @ECLASS-VARIABLE: JAVA_VM_DIR +# @INTERNAL +# @DESCRIPTION: +# Base directory for vm links. +JAVA_VM_DIR="/usr/lib/jvm" + +# @ECLASS-VARIABLE: JAVA_VM_SYSTEM +# @INTERNAL +# @DESCRIPTION: +# Link for system-vm +JAVA_VM_SYSTEM="/etc/java-config-2/current-system-vm" + +# @ECLASS-VARIABLE: JAVA_VM_BUILD_ONLY +# @DESCRIPTION: +# Set to YES to mark a vm as build-only. +JAVA_VM_BUILD_ONLY="${JAVA_VM_BUILD_ONLY:-FALSE}" + + +# @FUNCTION: java-vm-2_pkg_setup +# @DESCRIPTION: +# default pkg_setup +# +# Initialize vm handle. + +java-vm-2_pkg_setup() { + if [[ "${SLOT}" != "0" ]]; then + VMHANDLE=${PN}-${SLOT} + else + VMHANDLE=${PN} + fi +} + + +# @FUNCTION: java-vm-2_pkg_postinst +# @DESCRIPTION: +# default pkg_postinst +# +# Set the generation-2 system VM, if it isn't set or the setting is +# invalid. Also update mime database. + +java-vm-2_pkg_postinst() { + # Note that we cannot rely on java-config here, as it will silently recognize + # e.g. icedtea6-bin as valid system VM if icedtea6 is set but invalid (e.g. due + # to the migration to icedtea-6) + if [[ ! -L "${EROOT}${JAVA_VM_SYSTEM}" ]]; then + java_set_default_vm_ + else + local current_vm_path=$(readlink "${EROOT}${JAVA_VM_SYSTEM}") + local current_vm=$(basename "${ROOT}${current_vm_path}") + if [[ ! -L "${EROOT}${JAVA_VM_DIR}/${current_vm}" ]]; then + java_set_default_vm_ + fi + fi + + fdo-mime_desktop_database_update +} + + +# @FUNCTION: java-vm-2_pkg_prerm +# @DESCRIPTION: +# default pkg_prerm +# +# Warn user if removing system-vm. + +java-vm-2_pkg_prerm() { + if [[ "$(GENTOO_VM="" java-config -f 2>/dev/null)" == "${VMHANDLE}" && -z "${REPLACED_BY_VERSION}" ]]; then + ewarn "It appears you are removing your system-vm!" + ewarn "Please run java-config -L to list available VMs," + ewarn "then use java-config -S to set a new system-vm!" + fi +} + + +# @FUNCTION: java-vm-2_pkg_postrm +# @DESCRIPTION: +# default pkg_postrm +# +# Update mime database. + +java-vm-2_pkg_postrm() { + fdo-mime_desktop_database_update +} + + +# @FUNCTION: java_set_default_vm_ +# @INTERNAL +# @DESCRIPTION: +# Set system-vm. + +java_set_default_vm_() { + java-config-2 --set-system-vm="${VMHANDLE}" + + einfo " ${P} set as the default system-vm." +} + + +# @FUNCTION: get_system_arch +# @DESCRIPTION: +# Get Java specific arch name. +# +# NOTE the mips and sparc values are best guesses. Oracle uses sparcv9 +# but does OpenJDK use sparc64? We don't support OpenJDK on sparc or any +# JVM on mips though so it doesn't matter much. + +get_system_arch() { + local abi=${1-${ABI}} + + case $(get_abi_CHOST ${abi}) in + mips*l*) echo mipsel ;; + mips*) echo mips ;; + ppc64le*) echo ppc64le ;; + *) + case ${abi} in + *_fbsd) get_system_arch ${abi%_fbsd} ;; + arm64) echo aarch64 ;; + hppa) echo parisc ;; + sparc32) echo sparc ;; + sparc64) echo sparcv9 ;; + x86*) echo i386 ;; + *) echo ${abi} ;; + esac ;; + esac +} + + +# @FUNCTION: set_java_env +# @DESCRIPTION: +# Installs a vm env file. +# DEPRECATED, use java-vm_install-env instead. + +set_java_env() { + debug-print-function ${FUNCNAME} $* + + local platform="$(get_system_arch)" + local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}" + + if [[ ${1} ]]; then + local source_env_file="${1}" + else + local source_env_file="${FILESDIR}/${VMHANDLE}.env" + fi + + if [[ ! -f ${source_env_file} ]]; then + die "Unable to find the env file: ${source_env_file}" + fi + + dodir ${JAVA_VM_CONFIG_DIR} + sed \ + -e "s/@P@/${P}/g" \ + -e "s/@PN@/${PN}/g" \ + -e "s/@PV@/${PV}/g" \ + -e "s/@PF@/${PF}/g" \ + -e "s/@SLOT@/${SLOT}/g" \ + -e "s/@PLATFORM@/${platform}/g" \ + -e "s/@LIBDIR@/$(get_libdir)/g" \ + -e "/^LDPATH=.*lib\\/\\\"/s|\"\\(.*\\)\"|\"\\1${platform}/:\\1${platform}/server/\"|" \ + < "${source_env_file}" \ + > "${env_file}" || die "sed failed" + + ( + echo "VMHANDLE=\"${VMHANDLE}\"" + echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\"" + ) >> "${env_file}" + + eprefixify ${env_file} + + [[ -n ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" >> ${env_file} + + local java_home=$(source "${env_file}"; echo ${JAVA_HOME}) + [[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}" + + # Make the symlink + dodir "${JAVA_VM_DIR}" + dosym ${java_home#${EPREFIX}} ${JAVA_VM_DIR}/${VMHANDLE} +} + + +# @FUNCTION: java-vm_install-env +# @DESCRIPTION: +# +# Installs a Java VM environment file. The source can be specified but +# defaults to ${FILESDIR}/${VMHANDLE}.env.sh. +# +# Environment variables within this file will be resolved. You should +# escape the $ when referring to variables that should be resolved later +# such as ${JAVA_HOME}. Subshells may be used but avoid using double +# quotes. See icedtea-bin.env.sh for a good example. + +java-vm_install-env() { + debug-print-function ${FUNCNAME} "$*" + + local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}" + local source_env_file="${1-${FILESDIR}/${VMHANDLE}.env.sh}" + + if [[ ! -f "${source_env_file}" ]]; then + die "Unable to find the env file: ${source_env_file}" + fi + + dodir "${JAVA_VM_CONFIG_DIR}" + + # Here be dragons! ;) -- Chewi + eval echo "\"$(cat <<< "$(sed 's:":\\":g' "${source_env_file}")")\"" > "${env_file}" || + die "failed to create Java env file" + + ( + echo "VMHANDLE=\"${VMHANDLE}\"" + echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\"" + [[ ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" || true + ) >> "${env_file}" || die "failed to append to Java env file" + + local java_home=$(unset JAVA_HOME; source "${env_file}"; echo ${JAVA_HOME}) + [[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}" + + # Make the symlink + dodir "${JAVA_VM_DIR}" + dosym "${java_home#${EPREFIX}}" "${JAVA_VM_DIR}/${VMHANDLE}" +} + + +# @FUNCTION: java-vm_set-pax-markings +# @DESCRIPTION: +# Set PaX markings on all JDK/JRE executables to allow code-generation on +# the heap by the JIT compiler. +# +# The markings need to be set prior to the first invocation of the the freshly +# built / installed VM. Be it before creating the Class Data Sharing archive or +# generating cacerts. Otherwise a PaX enabled kernel will kill the VM. +# Bug #215225 #389751 +# +# @CODE +# Parameters: +# $1 - JDK/JRE base directory. +# +# Examples: +# java-vm_set-pax-markings "${S}" +# java-vm_set-pax-markings "${ED}"/opt/${P} +# @CODE + +java-vm_set-pax-markings() { + debug-print-function ${FUNCNAME} "$*" + [[ $# -ne 1 ]] && die "${FUNCNAME}: takes exactly one argument" + [[ ! -f "${1}"/bin/java ]] \ + && die "${FUNCNAME}: argument needs to be JDK/JRE base directory" + + local executables=( "${1}"/bin/* ) + [[ -d "${1}"/jre ]] && executables+=( "${1}"/jre/bin/* ) + + # Usually disabling MPROTECT is sufficient. + local pax_markings="m" + # On x86 for heap sizes over 700MB disable SEGMEXEC and PAGEEXEC as well. + use x86 && pax_markings+="sp" + + pax-mark ${pax_markings} $(list-paxables "${executables[@]}") +} + + +# @FUNCTION: java-vm_revdep-mask +# @DESCRIPTION: +# Installs a revdep-rebuild control file which SEARCH_DIR_MASK set to the path +# where the VM is installed. Prevents pointless rebuilds - see bug #177925. +# Also gives a notice to the user. +# +# @CODE +# Parameters: +# $1 - Path of the VM (defaults to /opt/${P} if not set) +# +# Examples: +# java-vm_revdep-mask +# java-vm_revdep-mask /path/to/jdk/ +# +# @CODE + +java-vm_revdep-mask() { + debug-print-function ${FUNCNAME} "$*" + + local VMROOT="${1-"${EPREFIX}"/opt/${P}}" + + dodir /etc/revdep-rebuild + echo "SEARCH_DIRS_MASK=\"${VMROOT}\"" >> "${ED}/etc/revdep-rebuild/61-${VMHANDLE}" \ + || die "Failed to write revdep-rebuild mask file" +} + + +# @FUNCTION: java-vm_sandbox-predict +# @DESCRIPTION: +# Install a sandbox control file. Specified paths won't cause a sandbox +# violation if opened read write but no write takes place. See bug 388937#c1 +# +# @CODE +# Examples: +# java-vm_sandbox-predict /dev/random /proc/self/coredump_filter +# @CODE + +java-vm_sandbox-predict() { + debug-print-function ${FUNCNAME} "$*" + [[ -z "${1}" ]] && die "${FUNCNAME} takes at least one argument" + + local path path_arr=("$@") + # subshell this to prevent IFS bleeding out dependant on bash version. + # could use local, which *should* work, but that requires a lot of testing. + path=$(IFS=":"; echo "${path_arr[*]}") + dodir /etc/sandbox.d + echo "SANDBOX_PREDICT=\"${path}\"" > "${ED}/etc/sandbox.d/20${VMHANDLE}" \ + || die "Failed to write sandbox control file" +} |