/[gentoo-x86]/eclass/java-vm-2.eclass
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Revision 1.39 - (show annotations) (download)
Mon Nov 21 10:15:46 2011 UTC (3 years, 1 month ago) by sera
Branch: MAIN
Changes since 1.38: +36 -2 lines
Move handling of PaX marking JVM executables to eclass.

1 # Copyright 1999-2011 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/java-vm-2.eclass,v 1.38 2011/11/15 09:02:15 caster Exp $
4
5 # -----------------------------------------------------------------------------
6 # @eclass-begin
7 # @eclass-shortdesc Java Virtual Machine eclass
8 # @eclass-maintainer java@gentoo.org
9 #
10 # This eclass provides functionality which assists with installing
11 # virtual machines, and ensures that they are recognized by java-config.
12 #
13 # -----------------------------------------------------------------------------
14
15 inherit eutils fdo-mime multilib pax-utils prefix
16
17 DEPEND="=dev-java/java-config-2*"
18 has "${EAPI}" 0 1 && DEPEND="${DEPEND} >=sys-apps/portage-2.1"
19
20 RDEPEND="
21 =dev-java/java-config-2*"
22
23 export WANT_JAVA_CONFIG=2
24
25 JAVA_VM_CONFIG_DIR="/usr/share/java-config-2/vm"
26 JAVA_VM_DIR="/usr/lib/jvm"
27 JAVA_VM_SYSTEM="/etc/java-config-2/current-system-vm"
28 JAVA_VM_BUILD_ONLY="${JAVA_VM_BUILD_ONLY:-FALSE}"
29
30 EXPORT_FUNCTIONS pkg_setup pkg_postinst pkg_prerm pkg_postrm
31
32 java-vm-2_pkg_setup() {
33 if [[ "${SLOT}" != "0" ]]; then
34 VMHANDLE=${PN}-${SLOT}
35 else
36 VMHANDLE=${PN}
37 fi
38 }
39
40 java-vm-2_pkg_postinst() {
41 # Set the generation-2 system VM, if it isn't set or the setting is invalid
42 # Note that we cannot rely on java-config here, as it will silently recognize
43 # e.g. icedtea6-bin as valid system VM if icedtea6 is set but invalid (e.g. due
44 # to the migration to icedtea-6)
45 if [[ ! -L "${JAVA_VM_SYSTEM}" ]]; then
46 java_set_default_vm_
47 else
48 local current_vm_path="$(readlink "${JAVA_VM_SYSTEM}")"
49 local current_vm="$(basename "${current_vm_path}")"
50 if [[ ! -L "${JAVA_VM_DIR}/${current_vm}" ]]; then
51 java_set_default_vm_
52 fi
53 fi
54
55 java-vm_check-nsplugin
56 java_mozilla_clean_
57 fdo-mime_desktop_database_update
58 }
59
60 java-vm_check-nsplugin() {
61 local libdir
62 if [[ ${VMHANDLE} =~ emul-linux-x86 ]]; then
63 libdir=lib32
64 else
65 libdir=lib
66 fi
67
68 has ${EAPI:-0} 0 1 2 && ! use prefix && EPREFIX=
69
70 # Install a default nsplugin if we don't already have one
71 if has nsplugin ${IUSE} && use nsplugin; then
72 if [[ ! -f "${EPREFIX}"/usr/${libdir}/nsbrowser/plugins/javaplugin.so ]]; then
73 einfo "No system nsplugin currently set."
74 java-vm_set-nsplugin
75 else
76 einfo "System nsplugin is already set, not changing it."
77 fi
78 einfo "You can change nsplugin with eselect java-nsplugin."
79 fi
80 }
81
82 java-vm_set-nsplugin() {
83 local extra_args
84 if use amd64; then
85 if [[ ${VMHANDLE} =~ emul-linux-x86 ]]; then
86 extra_args="32bit"
87 else
88 extra_args="64bit"
89 fi
90 einfo "Setting ${extra_args} nsplugin to ${VMHANDLE}"
91 else
92 einfo "Setting nsplugin to ${VMHANDLE}..."
93 fi
94 eselect java-nsplugin set ${extra_args} ${VMHANDLE}
95 }
96
97 java-vm-2_pkg_prerm() {
98 # Although REPLACED_BY_VERSION is EAPI=4, we shouldn't need to check EAPI for this use case
99 if [[ "$(GENTOO_VM="" java-config -f 2>/dev/null)" == "${VMHANDLE}" && -z "${REPLACED_BY_VERSION}" ]]; then
100 ewarn "It appears you are removing your system-vm!"
101 ewarn "Please run java-config -L to list available VMs,"
102 ewarn "then use java-config -S to set a new system-vm!"
103 fi
104 }
105
106 java-vm-2_pkg_postrm() {
107 fdo-mime_desktop_database_update
108 }
109
110 java_set_default_vm_() {
111 java-config-2 --set-system-vm="${VMHANDLE}"
112
113 einfo " ${P} set as the default system-vm."
114 }
115
116 get_system_arch() {
117 local sarch
118 sarch=$(echo ${ARCH} | sed -e s/[i]*.86/i386/ -e s/x86_64/amd64/ -e s/sun4u/sparc/ -e s/sparc64/sparc/ -e s/arm.*/arm/ -e s/sa110/arm/)
119 if [ -z "${sarch}" ]; then
120 sarch=$(uname -m | sed -e s/[i]*.86/i386/ -e s/x86_64/amd64/ -e s/sun4u/sparc/ -e s/sparc64/sparc/ -e s/arm.*/arm/ -e s/sa110/arm/)
121 fi
122 echo ${sarch}
123 }
124
125 # TODO rename to something more evident, like install_env_file
126 set_java_env() {
127 debug-print-function ${FUNCNAME} $*
128
129 if has ${EAPI:-0} 0 1 2 && ! use prefix ; then
130 ED="${D}"
131 EPREFIX=""
132 fi
133
134 local platform="$(get_system_arch)"
135 local env_file="${ED}${JAVA_VM_CONFIG_DIR}/${VMHANDLE}"
136 local old_env_file="${ED}/etc/env.d/java/20${P}"
137 if [[ ${1} ]]; then
138 local source_env_file="${1}"
139 else
140 local source_env_file="${FILESDIR}/${VMHANDLE}.env"
141 fi
142
143 if [[ ! -f ${source_env_file} ]]; then
144 die "Unable to find the env file: ${source_env_file}"
145 fi
146
147 dodir ${JAVA_VM_CONFIG_DIR}
148 sed \
149 -e "s/@P@/${P}/g" \
150 -e "s/@PN@/${PN}/g" \
151 -e "s/@PV@/${PV}/g" \
152 -e "s/@PF@/${PF}/g" \
153 -e "s/@PLATFORM@/${platform}/g" \
154 -e "s/@LIBDIR@/$(get_libdir)/g" \
155 -e "/^LDPATH=.*lib\\/\\\"/s|\"\\(.*\\)\"|\"\\1${platform}/:\\1${platform}/server/\"|" \
156 < "${source_env_file}" \
157 > "${env_file}" || die "sed failed"
158
159 (
160 echo "VMHANDLE=\"${VMHANDLE}\""
161 echo "BUILD_ONLY=\"${JAVA_VM_BUILD_ONLY}\""
162 ) >> "${env_file}"
163
164 eprefixify ${env_file}
165
166 [[ -n ${JAVA_PROVIDE} ]] && echo "PROVIDES=\"${JAVA_PROVIDE}\"" >> ${env_file}
167
168 local java_home=$(source "${env_file}"; echo ${JAVA_HOME})
169 [[ -z ${java_home} ]] && die "No JAVA_HOME defined in ${env_file}"
170
171 # Make the symlink
172 dodir "${JAVA_VM_DIR}"
173 dosym ${java_home#${EPREFIX}} ${JAVA_VM_DIR}/${VMHANDLE} \
174 || die "Failed to make VM symlink at ${JAVA_VM_DIR}/${VMHANDLE}"
175 }
176
177 # -----------------------------------------------------------------------------
178 # @ebuild-function java-vm_set-pax-markings
179 #
180 # Set PaX markings on all JDK/JRE executables to allow code-generation on
181 # the heap by the JIT compiler.
182 #
183 # The markings need to be set prior to the first invocation of the the freshly
184 # built / installed VM. Be it before creating the Class Data Sharing archive or
185 # generating cacerts. Otherwise a PaX enabled kernel will kill the VM.
186 # Bug #215225 #389751
187 #
188 # @example
189 # java-vm_set-pax-markings "${S}"
190 # java-vm_set-pax-markings "${ED}"/opt/${P}
191 #
192 # @param $1 - JDK/JRE base directory.
193 # -----------------------------------------------------------------------------
194 java-vm_set-pax-markings() {
195 debug-print-function ${FUNCNAME} "$*"
196 [[ $# -ne 1 ]] && die "${FUNCNAME}: takes exactly one argument"
197 [[ ! -f "${1}"/bin/java ]] \
198 && die "${FUNCNAME}: argument needs to be JDK/JRE base directory"
199
200 local executables=( "${1}"/bin/* )
201 [[ -d "${1}"/jre ]] && executables+=( "${1}"/jre/bin/* )
202
203 # Usally disabeling MPROTECT is sufficent
204 local pax_markings="m"
205 # On x86 for heap sizes over 700MB disable SEGMEXEC and PAGEEXEC as well.
206 use x86 && pax_markings="msp"
207
208 pax-mark ${pax_markings} $(list-paxables "${executables[@]}")
209 }
210
211 # -----------------------------------------------------------------------------
212 # @ebuild-function java-vm_revdep-mask
213 #
214 # Installs a revdep-rebuild control file which SEARCH_DIR_MASK set to the path
215 # where the VM is installed. Prevents pointless rebuilds - see bug #177925.
216 # Also gives a notice to the user.
217 #
218 # @example
219 # java-vm_revdep-mask
220 # java-vm_revdep-mask /path/to/jdk/
221 #
222 # @param $1 - Path of the VM (defaults to /opt/${P} if not set)
223 # ------------------------------------------------------------------------------
224 java-vm_revdep-mask() {
225 if has ${EAPI:-0} 0 1 2 && ! use prefix; then
226 ED="${D}"
227 EPREFIX=
228 fi
229
230 local VMROOT="${1-"${EPREFIX}"/opt/${P}}"
231
232 dodir /etc/revdep-rebuild/
233 echo "SEARCH_DIRS_MASK=\"${VMROOT}\""> "${ED}/etc/revdep-rebuild/61-${VMHANDLE}"
234 }
235
236 # -----------------------------------------------------------------------------
237 # @ebuild-function java-vm_sandbox-predict
238 #
239 # Install a sandbox control file. Specified paths won't cause a sandbox
240 # violation if opened read write but no write takes place. See bug 388937#c1
241 #
242 # @example
243 # java-vm_sandbox-predict /dev/random /proc/self/coredump_filter
244 # -----------------------------------------------------------------------------
245 java-vm_sandbox-predict() {
246 debug-print-function ${FUNCNAME} "$*"
247 [[ -z "${1}" ]] && die "${FUNCNAME} takes at least one argument"
248
249 has ${EAPI:-0} 0 1 2 && ! use prefix && ED="${D}"
250
251 local path path_arr=("$@")
252 IFS=":" path="${path_arr[*]}"
253 dodir /etc/sandbox.d
254 echo "SANDBOX_PREDICT=\"${path}\"" > "${ED}/etc/sandbox.d/20${VMHANDLE}" \
255 || die "Failed to write sandbox control file"
256 }
257
258 java_get_plugin_dir_() {
259 has ${EAPI:-0} 0 1 2 && ! use prefix && EPREFIX=
260 echo "${EPREFIX}"/usr/$(get_libdir)/nsbrowser/plugins
261 }
262
263 install_mozilla_plugin() {
264 local plugin="${1}"
265 local variant="${2}"
266
267 has ${EAPI:-0} 0 1 2 && ! use prefix && ED="${D}"
268 if [[ ! -f "${ED}/${plugin}" ]]; then
269 die "Cannot find mozilla plugin at ${ED}/${plugin}"
270 fi
271
272 if [[ -n "${variant}" ]]; then
273 variant="-${variant}"
274 fi
275
276 local plugin_dir="/usr/share/java-config-2/nsplugin"
277 dodir "${plugin_dir}"
278 dosym "${plugin}" "${plugin_dir}/${VMHANDLE}${variant}-javaplugin.so"
279 }
280
281 java_mozilla_clean_() {
282 # Because previously some ebuilds installed symlinks outside of pkg_install
283 # and are left behind, which forces you to manualy remove them to select the
284 # jdk/jre you want to use for java
285 local plugin_dir=$(java_get_plugin_dir_)
286 for file in ${plugin_dir}/javaplugin_*; do
287 rm -f ${file}
288 done
289 for file in ${plugin_dir}/libjavaplugin*; do
290 rm -f ${file}
291 done
292 }
293
294 # ------------------------------------------------------------------------------
295 # @eclass-end
296 # ------------------------------------------------------------------------------

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