diff --git a/.github/workflows/build_gentoo.yml b/.github/workflows/build_gentoo.yml
index 6c6765ea..bc2f9fa3 100644
--- a/.github/workflows/build_gentoo.yml
+++ b/.github/workflows/build_gentoo.yml
@@ -37,4 +37,4 @@ jobs:
 
     - name: build and push
       if: ${{ github.actor == github.repository_owner }}
-      run: gentoo/make_docker.sh -g
+      run: gentoo/make_docker.sh -gb
diff --git a/gentoo/Dockerfile b/gentoo/Dockerfile
index 01e6b7ad..1d1d05a6 100644
--- a/gentoo/Dockerfile
+++ b/gentoo/Dockerfile
@@ -5,35 +5,20 @@
 # @copyright © 2023 Erez Geva
 #
 # Docker file for Gentoo container for building and installing
-# Search packages at: https://portagefilelist.de/
+# Create from Docker image from base image
+# https://dev.gentoo.org/~zmedico/portage/doc/man/emerge.1.html
+# --tree, -t Shows the dependency tree
+# --verbose, -v
+# --update, -u
+# --deep [DEPTH], -D    entire dependency tree of packages
 ###############################################################################
-FROM gentoo/stage3
-MAINTAINER "Erez Geva" <ErezGeva2@gmail.com>
-LABEL org.opencontainers.image.description "Gentoo build for libptpmgmt"
-ARG UID
-ARG USER
-COPY gentoo/pkgs_use /etc/portage/package.use/pkgs
-RUN emerge-webrsync && emerge -tv app-portage/portage-utils app-shells/bash\
-    app-admin/sudo doxygen app-editors/vim sys-apps/fakeroot dev-lua/luaposix\
-    sys-apps/which sys-devel/gcc libtool make dev-lang/go sys-devel/m4\
-    dev-util/pkgconf dev-vcs/git dev-lang/swig dev-lang/perl dev-lang/ruby\
-    dev-lang/python dev-lang/lua dev-lang/php dev-lang/tcl app-misc/jq\
-    dev-libs/criterion media-gfx/graphviz app-text/texlive-core\
-    dev-texlive/texlive-fontutils dev-cpp/gtest dev-util/astyle\
-    llvm-core/clang dev-debug/gdb app-admin/chrpath dev-util/patchelf\
-    app-text/discount &&\
-    sed -i 's/^enable_dl\s*=\s*Off/enable_dl = On/' /etc/php/*/php.ini &&\
+FROM portage_base
+ARG UID USER
+# 559m34.815s = 9h 16m 34s
+RUN emerge -tv llvm-core/clang &&\
     useradd $USER -u $UID -m -G users,wheel,portage &&\
-    echo "$USER ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers &&\
-    mkdir -p /t0 && cd /t0 && git clone https://github.com/linux-rt/librtpi &&\
-    cd librtpi && autoreconf -i &&\
-    ./configure --prefix=/usr --includedir=/usr/include --libdir=/usr/lib64 &&\
-    make install &&\
-    cd /t0 && git clone https://gitlab.com/chrony/libchrony &&\
-    cd libchrony && make install includedir=/usr/include libdir=/usr/lib64 &&\
-    cd && rm -Rf /t0
+    echo "$USER ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
 ARG COOKIE
-RUN emerge --oneshot -tv sys-apps/portage
-ARG SRC
-ARG DST
+# RUN emerge --sync && emerge -tvuD @world
+ARG SRC DST
 COPY --chown=builder $SRC $DST
diff --git a/gentoo/Dockerfile.base b/gentoo/Dockerfile.base
new file mode 100644
index 00000000..b7ed29a5
--- /dev/null
+++ b/gentoo/Dockerfile.base
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: Copyright © 2023 Erez Geva <ErezGeva2@gmail.com>
+#
+# @author Erez Geva <ErezGeva2@@gmail.com>
+# @copyright © 2023 Erez Geva
+#
+# Docker file for Gentoo container base for building and installing
+# Search packages at: https://portagefilelist.de/
+# https://dev.gentoo.org/~zmedico/portage/doc/man/emerge.1.html
+# --tree, -t Shows the dependency tree
+# --verbose, -v
+###############################################################################
+FROM gentoo/stage3
+MAINTAINER "Erez Geva" <ErezGeva2@gmail.com>
+LABEL org.opencontainers.image.description "Gentoo build for libptpmgmt"
+COPY gentoo/pkgs_use /etc/portage/package.use/pkgs
+RUN emerge-webrsync && emerge -tvuD @world &&\
+    emerge -tv dev-lang/go app-portage/portage-utils app-shells/bash\
+    app-admin/sudo app-admin/chrpath app-editors/vim app-misc/jq\
+    app-text/discount app-text/doxygen sys-devel/m4\
+    sys-apps/fakeroot sys-apps/which dev-build/libtool\
+    dev-build/make dev-util/pkgconf dev-util/astyle dev-util/patchelf\
+    dev-vcs/git dev-libs/criterion dev-cpp/gtest dev-debug/gdb\
+    dev-lang/swig dev-lang/perl dev-lang/ruby dev-lang/python\
+    dev-lang/lua dev-lua/luaposix dev-lang/php dev-lang/tcl sys-devel/gcc\
+    dev-util/cppcheck media-gfx/graphviz perl-core/Test-Simple\
+    app-text/texlive-core dev-texlive/texlive-fontutils &&\
+    sed -i 's/^enable_dl\s*=\s*Off/enable_dl = On/' /etc/php/*/php.ini &&\
+    mkdir -p /t0 && cd /t0 && git clone https://github.com/linux-rt/librtpi &&\
+    cd librtpi && autoreconf -i &&\
+    ./configure --prefix=/usr --includedir=/usr/include --libdir=/usr/lib64 &&\
+    make install &&\
+    cd /t0 && git clone https://gitlab.com/chrony/libchrony &&\
+    cd libchrony && make install includedir=/usr/include libdir=/usr/lib64 &&\
+    cd && rm -Rf /t0
+ARG UID USER COOKIE SRC DST
diff --git a/gentoo/Dockerfile.github b/gentoo/Dockerfile.github
deleted file mode 100644
index 21400afc..00000000
--- a/gentoo/Dockerfile.github
+++ /dev/null
@@ -1,19 +0,0 @@
-# SPDX-License-Identifier: GPL-3.0-or-later
-# SPDX-FileCopyrightText: Copyright © 2024 Erez Geva <ErezGeva2@gmail.com>
-#
-# @author Erez Geva <ErezGeva2@@gmail.com>
-# @copyright © 2024 Erez Geva
-#
-# Docker file for Gentoo container for building and installing
-# Create from Docker image on GitHub
-###############################################################################
-FROM ghcr.io/erezgeva/portage
-ARG UID
-ARG USER
-RUN useradd $USER -u $UID -m -G users,wheel,portage &&\
-    echo "$USER ALL=(ALL:ALL) NOPASSWD:ALL" >> /etc/sudoers
-ARG COOKIE
-RUN emerge --oneshot -tv sys-apps/portage
-ARG SRC
-ARG DST
-COPY --chown=builder2 $SRC $DST
diff --git a/gentoo/make_docker.sh b/gentoo/make_docker.sh
index 00d23124..78b92ae6 100755
--- a/gentoo/make_docker.sh
+++ b/gentoo/make_docker.sh
@@ -10,8 +10,8 @@
 main()
 {
   local -r base_dir="$(dirname "$(realpath "$0")")"
-  local -r d_user=builder2
-  local -r d_dock_file=Dockerfile.github
+  local -r b_dock_file=Dockerfile.base
+  local -r b_name=portage_base
   cd "$base_dir/.."
   source tools/make_docker.sh
   make_docker portage "$@"
@@ -22,10 +22,8 @@ ext()
 docker run -it -w /home/builder/libptpmgmt -u builder\
   -v $(realpath .):/home/builder/gentoo portage
 
-# With '-d'
-docker pull ghcr.io/erezgeva/portage
-docker run -it -w /home/builder2/libptpmgmt -u builder2\
-  -v $(realpath .):/home/builder2/gentoo portage
+docker pull ghcr.io/erezgeva/portage_base
+docker tag ghcr.io/erezgeva/portage_base portage_base
 
 # See https://wiki.gentoo.org/wiki/Gentoo_Cheat_Sheet
 emerge world -ep
diff --git a/gentoo/pkgs_use b/gentoo/pkgs_use
index d80c2aa6..9b5821bb 100644
--- a/gentoo/pkgs_use
+++ b/gentoo/pkgs_use
@@ -7,152 +7,7 @@
 # Gentoo USE flags per package file
 # See: https://wiki.gentoo.org/wiki/Handbook:AMD64/Working/USE
 ###############################################################################
-app-admin/metalog unicode
-app-admin/sudo nls pam secure-path sendmail ssl -gcrypt -ldap -offensive -sasl -skey -sssd -verify-sig
-app-arch/libarchive acl bzip2 e2fsprogs iconv lzma xattr -blake2 -expat -lz4 -lzo -nettle -static-libs -verify-sig -zstd
-app-crypt/rhash nls ssl -debug -static-libs
-app-editors/vim acl crypt nls -X -cscope -debug -gpm -lua -minimal -perl -python -racket -ruby -sound -tcl -terminal -vim-pager
-app-editors/vim-core acl nls -minimal
-app-eselect/eselect-php -apache2 -fpm
-app-portage/portage-utils openmp* qmanifest qtegrity -static
-app-shells/bash net nls readline -afs -bashlogger -examples -mem-scramble -plugins -verify-sig
-app-text/doxygen -clang -debug -doc -dot -doxysearch -gui -test
-app-text/dvipsk -doc -source
-app-text/ghostscript-gpl unicode -X -cups -dbus -gtk -static-libs
-app-text/texlive-core luajittex -X -cjk -doc -source -tk -xetex -xindy
-app-vim/gentoo-syntax -ignore-glep31
-dev-build/cmake ncurses -dap -doc -emacs -gui -qt6 -test -verify-sig
-dev-build/libtool -vanilla
-dev-build/make nls -guile -static -verify-sig
-dev-lang/lua deprecated readline
-dev-lang/nasm -doc
-dev-lang/perl gdbm -berkdb -debug -doc -ithreads -minimal -quadmath
-dev-lang/php acl bzip2 cli ctype fileinfo filter flatfile gdbm iconv ipv6 jit nls opcache phar posix readline session simplexml ssl tokenizer unicode xml zlib -apache2 -apparmor -argon2 -avif -bcmath -berkdb -calendar -cdb -cgi -cjk -curl -debug -embed -enchant -exif -ffi -fpm -ftp -gd -gmp -imap -inifile -intl -iodbc -kerberos -ldap -ldap-sasl -libedit -lmdb -mhash -mssql -mysql -mysqli -oci8-instant-client -odbc -pcntl -pdo -phpdbg -postgres -qdbm -session-mm -sharedmem -snmp -soap -sockets -sodium -spell -sqlite -systemd -sysvipc -test -threads -tidy -tokyocabinet -truetype -webp -xmlreader -xmlwriter -xpm -xslt -zip
-dev-lang/python ensurepip gdbm ncurses readline sqlite ssl -bluetooth -build -debug -examples -libedit -pgo -test -tk -valgrind -verify-sig
-dev-lang/ruby gdbm ipv6 rdoc ssl -berkdb -debug -doc -examples -jit -socks5 -static-libs -systemtap -tk -valgrind -xemacs
-dev-lang/swig pcre -ccache -doc -test
-dev-lang/tcl threads -debug
-dev-libs/boxfort -test
-dev-libs/criterion -test
-dev-libs/elfutils bzip2 nls utils -debuginfod -lzma -static-libs -test -verify-sig -zstd
-dev-libs/fribidi -doc -test
-dev-libs/glib elf mime xattr -dbus -debug -gtk-doc -static-libs -sysprof -systemtap -test -utils
-dev-libs/gobject-introspection -doctool -gtk-doc -test
-dev-libs/icu -debug -doc -examples -static-libs -test -verify-sig
-dev-libs/jsoncpp -doc -test
-dev-libs/kpathsea -doc -source -static-libs
-dev-libs/libfmt -test
-dev-libs/libgit2 ssh threads -examples -gssapi -test -trace
-dev-libs/libsodium asm urandom -minimal -static-libs -verify-sig
-dev-libs/libyaml -doc -static-libs -test
-dev-libs/lzo -examples -static-libs
-dev-libs/nanomsg -doc
-dev-libs/oniguruma -crnl-as-line-terminator -static-libs
-dev-libs/ptexenc iconv
-dev-libs/spdlog -test
-dev-libs/zziplib -sdl -static-libs
-dev-perl/Authen-SASL -kerberos -test
-dev-perl/B-Hooks-EndOfScope -test
-dev-perl/Capture-Tiny -examples -test
-dev-perl/Class-Data-Inheritable -test
-dev-perl/Class-XSAccessor -test
-dev-perl/Config-AutoConf -test
-dev-perl/CPAN-Meta-Check -test
-dev-perl/Data-OptList -test
-dev-perl/Devel-Caller -test
-dev-perl/Devel-GlobalDestruction -test
-dev-perl/Devel-LexAlias -test
-dev-perl/Devel-StackTrace -test
-dev-perl/Dist-CheckConflicts -test
-dev-perl/Error -test
-dev-perl/Eval-Closure -minimal -test
-dev-perl/Exception-Class -examples -test
-dev-perl/ExtUtils-HasCompiler -test
-dev-perl/File-HomeDir xdg -test
-dev-perl/File-Slurper -examples -test
-dev-perl/File-Which -pwhich -test
-dev-perl/IO-Socket-SSL -examples -idn -test
-dev-perl/Log-Dispatch -test
-dev-perl/MailTools -examples -test
-dev-perl/Module-Implementation -test
-dev-perl/Module-Runtime -test
-dev-perl/Mozilla-CA -test
-dev-perl/MRO-Compat -test
-dev-perl/namespace-autoclean -test
-dev-perl/namespace-clean -test
-dev-perl/Net-SSLeay -examples -minimal -test
-dev-perl/Package-Stash -minimal -test
-dev-perl/Package-Stash-XS -test
-dev-perl/PadWalker -test
-dev-perl/Params-Util -test
-dev-perl/Params-ValidationCompiler -examples -minimal -test
-dev-perl/PerlIO-utf8_strict -test
-dev-perl/Perl-Tidy -examples -test
-dev-perl/Ref-Util xs -test
-dev-perl/Ref-Util-XS -test
-dev-perl/Role-Tiny -test
-dev-perl/Specio -minimal -test
-dev-perl/Sub-Exporter-Progressive -test
-dev-perl/Sub-Exporter -test
-dev-perl/Sub-Identify -test
-dev-perl/Sub-Install -test
-dev-perl/Sub-Name -suggested -test
-dev-perl/Sub-Quote -minimal -test
-dev-perl/Test-Fatal -examples -test
-dev-perl/TimeDate -test
-dev-perl/Try-Tiny -minimal -test
-dev-perl/Variable-Magic -examples -test
-dev-perl/XString -test
-dev-ruby/bundler -doc -test
-dev-ruby/did_you_mean -test
-dev-ruby/json -doc -test
-dev-ruby/kpeg -doc -test
-dev-ruby/minitest -doc -test
-dev-ruby/power_assert -doc -test
-dev-ruby/psych -doc -test
-dev-ruby/racc -doc -test
-dev-ruby/rake -doc -test
-dev-ruby/rbs -doc -test
-dev-ruby/rdoc -doc -test
-dev-ruby/rexml -test
-dev-ruby/rss -doc -test
-dev-ruby/rubygems -server -test
-dev-ruby/stringio -doc -test
-dev-ruby/test-unit -doc -test
-dev-ruby/typeprof -test
-dev-tex/bibtexu -doc -source
-dev-texlive/texlive-basic luajittex -doc -source
-dev-texlive/texlive-fontutils -doc -source
-dev-util/colm -doc
-dev-util/desktop-file-utils -emacs
-dev-util/pkgconf -test
-dev-util/ragel -doc
-dev-vcs/git blksha1 curl gpg iconv nls pcre perl safe-directory webdav -cgi -cvs -doc -highlight -keyring -mediawiki -perforce -subversion -test -tk -xinetd
-mail-mta/nullmailer ssl -test
-media-fonts/liberation-fonts -X -fontforge
-media-fonts/urw-fonts -X
-media-gfx/graphite2 -perl -test
-media-gfx/graphviz cairo nls -X -devil -doc -examples -gtk2 -gts -guile -lasi -pdf -perl -postscript -python -qt5 -ruby -svg -tcl -webp
-media-libs/fontconfig nls -doc -test
-media-libs/freetype adobe-cff bzip2 cleartype-hinting png -X -brotli -debug -doc -fontforge -harfbuzz -static-libs -svg -utils
-media-libs/gd fontconfig jpeg png truetype zlib -avif -heif -static-libs -test -tiff -webp -xpm
-media-libs/harfbuzz cairo glib graphite icu introspection truetype -debug -doc -experimental -test
-media-libs/jbig2dec -png -static-libs -test
-media-libs/lcms -doc -jpeg -static-libs -tiff
-media-libs/libjpeg-turbo -java -static-libs
-media-libs/libpng -apng -static-libs
-media-libs/openjpeg -doc -test
-media-libs/tiff cxx zlib -jbig -jpeg -lzma -static-libs -test -verify-sig -webp -zstd
-net-dns/libidn nls -emacs -verify-sig
-net-libs/libssh2 zlib -gcrypt -mbedtls -test
-perl-core/Test-Simple -examples
-sys-apps/ed -verify-sig
-sys-apps/fakeroot acl nls -debug -test
-sys-devel/gcc cxx fortran multilib nls openmp pie sanitize ssp -ada -d -debug -default-stack-clash-protection -default-znow -doc -go -graphite -hardened -jit -lto -modula2 -objc -objc++ -objc-gc -pgo -systemtap -test -valgrind -vanilla -vtv -zstd
-sys-devel/m4 nls -examples -verify-sig
-virtual/perl-libnet ssl
-x11-libs/cairo glib -X -gtk-doc -test
-x11-libs/pango introspection -X -debug -sysprof -test
-x11-libs/pixman -static-libs -test
-x11-misc/shared-mime-info -test
-x11-misc/xdg-user-dirs -gtk
+dev-libs/glib -introspection -kernel_linux -selinux
+media-libs/gd fontconfig truetype
+media-libs/harfbuzz icu -introspection
+x11-libs/pango -introspection
diff --git a/tools/make_docker.sh b/tools/make_docker.sh
index 4d358de2..a69102a3 100755
--- a/tools/make_docker.sh
+++ b/tools/make_docker.sh
@@ -30,9 +30,10 @@ make_args()
 }
 tool_docker_get_opts()
 {
-  local use_d use_github use_gitlab server namespace
+  local use_github use_gitlab server namespace
   local -r uid=$(id -u)
-  while getopts 'nugld' opt; do
+  local -r user=builder
+  while getopts 'nuglb' opt; do
     case $opt in
       n)
         no_cache=--no-cache
@@ -46,8 +47,8 @@ tool_docker_get_opts()
       l)
         use_gitlab=yes
         ;;
-      d)
-        use_d=yes
+      b)
+        use_b=yes
         ;;
     esac
   done
@@ -60,12 +61,9 @@ tool_docker_get_opts()
     use_srv=yes
     srv_ns=$server/$namespace/libptpmgmt
   fi
-  if [[ -n "$use_d" ]] && [[ -z "$use_srv" ]] &&\
-     [[ -n "$d_user" ]] && [[ -n "$d_dock_file" ]]; then
-    local -r user=$d_user
-    dock_file=$d_dock_file
+  if [[ -n "$use_b" ]] && [[ -n "$b_dock_file" ]]; then
+    dock_file=$b_dock_file
   else
-    local -r user=builder
     dock_file=Dockerfile
   fi
   if [[ -n "$use_srv" ]]; then
@@ -87,10 +85,13 @@ tool_docker_get_opts()
 }
 make_docker()
 {
-  local -r name="$1"
+  local name="$1"
   shift
-  local no_cache use_srv srv_ns args dock_file
+  local no_cache use_srv srv_ns args dock_file use_b
   tool_docker_get_opts "$@"
+  if [[ -n "$use_b" ]] && [[ -n "$b_name" ]]; then
+    name="$b_name"
+  fi
   if [[ -z "$use_srv" ]]; then
     clean_cont $name
     local -r fname=$name
diff --git a/utest/libsys_pmc.cpp b/utest/libsys_pmc.cpp
index 8e60bcfa..d6b81f89 100644
--- a/utest/libsys_pmc.cpp
+++ b/utest/libsys_pmc.cpp
@@ -35,17 +35,22 @@ void useRoot(bool n) {}
 sysFuncDec(int, printf, const char *, ...);
 sysFuncDec(int, __printf_chk, int, const char *, ...);
 sysFuncDec(int, puts, const char *);
+sysFuncDec(int, vprintf, const char *, va_list);
+sysFuncDec(int, __vprintf_chk, int, const char *, va_list);
 void initLibSys(void)
 {
     bool fail = false;
     sysFuncAgn(int, printf, const char *, ...);
     sysFuncAgn(int, __printf_chk, int, const char *, ...);
     sysFuncAgn(int, puts, const char *);
+    sysFuncAgn(int, vprintf, const char *, va_list);
+    sysFuncAgn(int, __vprintf_chk, int, const char *, va_list);
     if(fail)
         fprintf(stderr, "Fail obtain address of functions\n");
     useTestMode(false);
 }
 /*****************************************************************************/
+#define VA_PRINT(ap, format) _vprintf(ap, format)
 #define retTest(name, ...)\
     if(!testMode)\
         return _##name(__VA_ARGS__)
@@ -54,7 +59,7 @@ void initLibSys(void)
     va_list ap;\
     va_start(ap, format);\
     if(!testMode)\
-        ret = vprintf(format, ap);\
+        ret = VA_PRINT(format, ap);\
     else {\
         char str[1024];\
         ret = vsnprintf(str, sizeof(str), format, ap);\
@@ -62,6 +67,19 @@ void initLibSys(void)
     }\
     va_end(ap);\
     return ret
+#define V_PRINTF(format, ap)\
+    int ret = 0;\
+    va_list ap1;\
+    va_copy(ap1, ap);\
+    if(!testMode)\
+        ret = VA_PRINT(format, ap1);\
+    else {\
+        char str[1024];\
+        ret = vsnprintf(str, sizeof(str), format, ap1);\
+        pmc_out += str;\
+    }\
+    va_end(ap1);\
+    return ret
 /*****************************************************************************/
 int printf(const char *format, ...)
 {
@@ -76,3 +94,11 @@ int puts(const char *s)
     retTest(puts, s);
     return 0;
 }
+int vprintf(const char *format, va_list ap)
+{
+    V_PRINTF(format, ap);
+}
+int __vprintf_chk(int __flag, const char *format, va_list ap)
+{
+    V_PRINTF(format, ap);
+}