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322 lines
8.2 KiB
322 lines
8.2 KiB
# Copyright 1999-2019 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: java-vm-2.eclass
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# @MAINTAINER:
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# java@gentoo.org
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# @SUPPORTED_EAPIS: 6 8
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# @BLURB: Java Virtual Machine eclass
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# @DESCRIPTION:
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# This eclass provides functionality which assists with installing
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# virtual machines, and ensures that they are recognized by java-config.
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case ${EAPI:-0} in
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[68]) ;;
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*) die "EAPI=${EAPI} is not supported" ;;
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esac
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inherit multilib pax-utils prefix xdg-utils
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EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm pkg_postrm
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RDEPEND="
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dev-java/java-config
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app-eselect/eselect-java
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"
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DEPEND="${RDEPEND}"
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export WANT_JAVA_CONFIG=2
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# @ECLASS-VARIABLE: JAVA_VM_CONFIG_DIR
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# @INTERNAL
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# @DESCRIPTION:
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# Where to place the vm env file.
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JAVA_VM_CONFIG_DIR="/usr/share/java-config-2/vm"
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# @ECLASS-VARIABLE: JAVA_VM_DIR
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# @INTERNAL
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# @DESCRIPTION:
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# Base directory for vm links.
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JAVA_VM_DIR="/usr/lib/jvm"
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# @ECLASS-VARIABLE: JAVA_VM_SYSTEM
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# @INTERNAL
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# @DESCRIPTION:
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# Link for system-vm
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JAVA_VM_SYSTEM="/etc/java-config-2/current-system-vm"
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# @ECLASS-VARIABLE: JAVA_VM_BUILD_ONLY
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# @DESCRIPTION:
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# Set to YES to mark a vm as build-only.
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JAVA_VM_BUILD_ONLY="${JAVA_VM_BUILD_ONLY:-FALSE}"
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# @FUNCTION: java-vm-2_pkg_setup
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# @DESCRIPTION:
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# default pkg_setup
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#
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# Initialize vm handle.
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java-vm-2_pkg_setup() {
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if [[ "${SLOT}" != "0" ]]; then
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VMHANDLE=${PN}-${SLOT}
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else
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VMHANDLE=${PN}
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fi
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}
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# @FUNCTION: java-vm-2_pkg_postinst
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# @DESCRIPTION:
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# default pkg_postinst
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#
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# Set the generation-2 system VM, if it isn't set or the setting is
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# invalid. Also update mime database.
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java-vm-2_pkg_postinst() {
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if [[ ! -d ${EROOT}${JAVA_VM_SYSTEM} ]]; then
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eselect java-vm set system "${VMHANDLE}"
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einfo "${P} set as the default system-vm."
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fi
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xdg_desktop_database_update
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}
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# @FUNCTION: java-vm-2_pkg_prerm
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# @DESCRIPTION:
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# default pkg_prerm
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#
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# Warn user if removing system-vm.
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java-vm-2_pkg_prerm() {
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if [[ $(GENTOO_VM= java-config -f 2>/dev/null) == ${VMHANDLE} && -z ${REPLACED_BY_VERSION} ]]; then
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ewarn "It appears you are removing your system-vm! Please run"
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ewarn "\"eselect java-vm list\" to list available VMs, then use"
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ewarn "\"eselect java-vm set system\" to set a new system-vm!"
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fi
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}
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# @FUNCTION: java-vm-2_pkg_postrm
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# @DESCRIPTION:
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# default pkg_postrm
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#
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# Update mime database.
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java-vm-2_pkg_postrm() {
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xdg_desktop_database_update
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}
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# @FUNCTION: get_system_arch
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# @DESCRIPTION:
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# Get Java specific arch name.
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#
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# NOTE the mips and sparc values are best guesses. Oracle uses sparcv9
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# but does OpenJDK use sparc64? We don't support OpenJDK on sparc or any
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# JVM on mips though so it doesn't matter much.
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get_system_arch() {
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local abi=${1-${ABI}}
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case $(get_abi_CHOST ${abi}) in
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mips*l*) echo mipsel ;;
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mips*) echo mips ;;
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powerpc64le*) echo ppc64le ;;
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*)
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case ${abi} in
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*_fbsd) get_system_arch ${abi%_fbsd} ;;
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arm64) echo aarch64 ;;
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hppa) echo parisc ;;
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sparc32) echo sparc ;;
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sparc64) echo sparcv9 ;;
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x86*) echo i386 ;;
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*) echo ${abi} ;;
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esac ;;
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esac
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}
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# @FUNCTION: set_java_env
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# @DESCRIPTION:
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# Installs a vm env file.
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# DEPRECATED, use java-vm_install-env instead.
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set_java_env() {
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debug-print-function ${FUNCNAME} $*
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local platform="$(get_system_arch)"
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local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}"
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if [[ ${1} ]]; then
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local source_env_file="${1}"
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else
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local source_env_file="${FILESDIR}/${VMHANDLE}.env"
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fi
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if [[ ! -f ${source_env_file} ]]; then
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die "Unable to find the env file: ${source_env_file}"
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fi
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dodir ${JAVA_VM_CONFIG_DIR}
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sed \
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-e "s/@P@/${P}/g" \
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-e "s/@PN@/${PN}/g" \
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-e "s/@PV@/${PV}/g" \
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-e "s/@PF@/${PF}/g" \
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-e "s/@SLOT@/${SLOT}/g" \
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-e "s/@PLATFORM@/${platform}/g" \
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-e "s/@LIBDIR@/$(get_libdir)/g" \
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-e "/^LDPATH=.*lib\\/\\\"/s|\"\\(.*\\)\"|\"\\1${platform}/:\\1${platform}/server/\"|" \
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< "${source_env_file}" \
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> "${env_file}" || die "sed failed"
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(
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echo "VMHANDLE=\"${VMHANDLE}\""
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echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\""
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) >> "${env_file}"
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eprefixify ${env_file}
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[[ -n ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" >> ${env_file}
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local java_home=$(source "${env_file}"; echo ${JAVA_HOME})
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[[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}"
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# Make the symlink
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dodir "${JAVA_VM_DIR}"
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dosym "${java_home}" "${JAVA_VM_DIR}/${VMHANDLE}"
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}
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# @FUNCTION: java-vm_install-env
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# @DESCRIPTION:
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#
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# Installs a Java VM environment file. The source can be specified but
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# defaults to ${FILESDIR}/${VMHANDLE}.env.sh.
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#
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# Environment variables within this file will be resolved. You should
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# escape the $ when referring to variables that should be resolved later
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# such as ${JAVA_HOME}. Subshells may be used but avoid using double
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# quotes. See icedtea-bin.env.sh for a good example.
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java-vm_install-env() {
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debug-print-function ${FUNCNAME} "$*"
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local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}"
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local source_env_file="${1-${FILESDIR}/${VMHANDLE}.env.sh}"
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if [[ ! -f "${source_env_file}" ]]; then
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die "Unable to find the env file: ${source_env_file}"
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fi
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dodir "${JAVA_VM_CONFIG_DIR}"
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# Here be dragons! ;) -- Chewi
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eval echo "\"$(cat <<< "$(sed 's:":\\":g' "${source_env_file}")")\"" > "${env_file}" ||
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die "failed to create Java env file"
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(
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echo "VMHANDLE=\"${VMHANDLE}\""
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echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\""
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[[ ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" || true
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) >> "${env_file}" || die "failed to append to Java env file"
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local java_home=$(unset JAVA_HOME; source "${env_file}"; echo ${JAVA_HOME})
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[[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}"
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# Make the symlink
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dodir "${JAVA_VM_DIR}"
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dosym "${java_home}" "${JAVA_VM_DIR}/${VMHANDLE}"
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}
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# @FUNCTION: java-vm_set-pax-markings
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# @DESCRIPTION:
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# Set PaX markings on all JDK/JRE executables to allow code-generation on
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# the heap by the JIT compiler.
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#
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# The markings need to be set prior to the first invocation of the the freshly
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# built / installed VM. Be it before creating the Class Data Sharing archive or
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# generating cacerts. Otherwise a PaX enabled kernel will kill the VM.
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# Bug #215225 #389751
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#
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# @CODE
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# Parameters:
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# $1 - JDK/JRE base directory.
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#
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# Examples:
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# java-vm_set-pax-markings "${S}"
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# java-vm_set-pax-markings "${ED}"/opt/${P}
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# @CODE
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java-vm_set-pax-markings() {
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debug-print-function ${FUNCNAME} "$*"
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[[ $# -ne 1 ]] && die "${FUNCNAME}: takes exactly one argument"
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[[ ! -f "${1}"/bin/java ]] \
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&& die "${FUNCNAME}: argument needs to be JDK/JRE base directory"
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local executables=( "${1}"/bin/* )
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[[ -d "${1}"/jre ]] && executables+=( "${1}"/jre/bin/* )
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# Usually disabling MPROTECT is sufficient.
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local pax_markings="m"
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# On x86 for heap sizes over 700MB disable SEGMEXEC and PAGEEXEC as well.
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use x86 && pax_markings+="sp"
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pax-mark ${pax_markings} $(list-paxables "${executables[@]}")
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}
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# @FUNCTION: java-vm_revdep-mask
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# @DESCRIPTION:
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# Installs a revdep-rebuild control file which SEARCH_DIR_MASK set to the path
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# where the VM is installed. Prevents pointless rebuilds - see bug #177925.
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# Also gives a notice to the user.
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#
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# @CODE
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# Parameters:
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# $1 - Path of the VM (defaults to /opt/${P} if not set)
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#
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# Examples:
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# java-vm_revdep-mask
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# java-vm_revdep-mask /path/to/jdk/
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#
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# @CODE
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java-vm_revdep-mask() {
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debug-print-function ${FUNCNAME} "$*"
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local VMROOT="${1-"${EPREFIX}"/opt/${P}}"
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dodir /etc/revdep-rebuild
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echo "SEARCH_DIRS_MASK=\"${VMROOT}\"" >> "${ED}/etc/revdep-rebuild/61-${VMHANDLE}" \
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|| die "Failed to write revdep-rebuild mask file"
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}
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# @FUNCTION: java-vm_sandbox-predict
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# @DESCRIPTION:
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# Install a sandbox control file. Specified paths won't cause a sandbox
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# violation if opened read write but no write takes place. See bug 388937#c1
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#
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# @CODE
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# Examples:
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# java-vm_sandbox-predict /dev/random /proc/self/coredump_filter
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# @CODE
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java-vm_sandbox-predict() {
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debug-print-function ${FUNCNAME} "$*"
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[[ -z "${1}" ]] && die "${FUNCNAME} takes at least one argument"
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local path path_arr=("$@")
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# subshell this to prevent IFS bleeding out dependant on bash version.
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# could use local, which *should* work, but that requires a lot of testing.
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path=$(IFS=":"; echo "${path_arr[*]}")
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dodir /etc/sandbox.d
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echo "SANDBOX_PREDICT=\"${path}\"" > "${ED}/etc/sandbox.d/20${VMHANDLE}" \
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|| die "Failed to write sandbox control file"
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}
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