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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [boehm-gc/] [doc/] [README.DGUX386] - Blame information for rev 721

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Line No. Rev Author Line
1 721 jeremybenn
    Garbage Collector (parallel iversion) for ix86 DG/UX Release R4.20MU07
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     *READ* the file README.QUICK.
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     You need the GCC-3.0.3 rev (DG/UX) compiler to build this tree.
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     This compiler has the new "dgux386" threads package implemented.
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     It also supports the switch "-pthread" needed to link correctly
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     the DG/UX's -lrte -lthread with -lgcc and the system's -lc.
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     Finally we support parralleli-mark for the SMP DG/UX machines.
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     To build the garbage collector do:
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      ./configure --enable-parallel-mark
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      make
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      make gctest
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     Before you run "gctest" you need to set your LD_LIBRARY_PATH
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     correctly so that "gctest" can find the shared library libgc.
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     Alternatively you can do a configuration
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      ./configure --enable-parallel-mark --disable-shared
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     to build only the static version of libgc.
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     To enable debugging messages please do:
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     1) Add the "--enable-full-debug" flag during configuration.
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     2) Edit the file linux-threads.c and uncommnect the line:
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     /* #define DEBUG_THREADS 1 */ to --->
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     #define DEBUG_THREADS 1
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     Then give "make" as usual.
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     In a machine with 4 CPUs (my own machine) the option parallel
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     mark (aka --enable-parallel-mark) makes a BIG difference.
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     Takis Psarogiannakopoulos
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     University of Cambridge
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     Centre for Mathematical Sciences
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     Department of Pure Mathematics
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     Wilberforce Road
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     Cambridge CB3 0WB ,UK , 
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     January 2002
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Note (HB):
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     The integration of this patch is currently not complete.
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     The following patches against 6.1alpha3 where hard to move
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     to alpha4, and are not integrated.  There may also be minor
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     problems with stylistic corrections made by me.
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--- ltconfig.ORIG       Mon Jan 28 20:22:18 2002
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+++ ltconfig    Mon Jan 28 20:44:00 2002
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@@ -689,6 +689,11 @@
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        pic_flag=-Kconform_pic
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     fi
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     ;;
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+  dgux*)
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+    pic_flag='-fPIC'
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+    link_static='-Bstatic'
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+    wl='-Wl,'
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+    ;;
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   *)
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     pic_flag='-fPIC'
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     ;;
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@@ -718,6 +723,12 @@
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     # We can build DLLs from non-PIC.
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     ;;
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+  dgux*)
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+    pic_flag='-KPIC'
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+    link_static='-Bstatic'
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+    wl='-Wl,'
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+    ;;
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+
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   osf3* | osf4* | osf5*)
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     # All OSF/1 code is PIC.
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     wl='-Wl,'
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@@ -1154,6 +1165,22 @@
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     fi
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     ;;
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+  dgux*)
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+    ld_shlibs=yes
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+    # For both C/C++ ommit the deplibs. This is because we relying on the fact
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+    # that compilation of execitables will put them in correct order
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+    # in any case and sometimes are wrong when listed as deplibs (or missing some deplibs)
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+    # However when GNU ld and --whole-archive needs to be used we have the problem
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+    # that if the -fPIC *_s.a archive is linked through deplibs list we ommiting crucial
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+    # .lo/.o files from the created shared lib. This I think is not the case here.
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+    archive_cmds='$CC -shared -h $soname -o $lib $libobjs $linkopts'
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+    thread_safe_flag_spec='-pthread'
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+    wlarc=
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+    hardcode_libdir_flag_spec='-L$libdir'
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+    hardcode_shlibpath_var=no
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+    ac_cv_archive_cmds_needs_lc=no
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+    ;;
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+
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   cygwin* | mingw*)
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     # hardcode_libdir_flag_spec is actually meaningless, as there is
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     # no search path for DLLs.
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@@ -1497,7 +1524,7 @@
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     ;;
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   dgux*)
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-    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
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+    archive_cmds='$CC -shared -h $soname -o $lib $libobjs $linkopts'
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     hardcode_libdir_flag_spec='-L$libdir'
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     hardcode_shlibpath_var=no
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     ;;
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@@ -2092,12 +2119,17 @@
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   ;;
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 dgux*)
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-  version_type=linux
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+  version_type=dgux
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   need_lib_prefix=no
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   need_version=no
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-  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
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-  soname_spec='${libname}${release}.so$major'
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+  library_names_spec='$libname.so$versuffix'
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+  soname_spec='$libname.so$versuffix'
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   shlibpath_var=LD_LIBRARY_PATH
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+  thread_safe_flag_spec='-pthread'
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+  wlarc=
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+  hardcode_libdir_flag_spec='-L$libdir'
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+  hardcode_shlibpath_var=no
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+  ac_cv_archive_cmds_needs_lc=no
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   ;;
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 sysv4*MP*)
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--- ltmain.sh.ORIG      Mon Jan 28 20:31:18 2002
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+++ ltmain.sh   Tue Jan 29 00:11:29 2002
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@@ -1072,11 +1072,38 @@
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        esac
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        ;;
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+      -thread*)
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+       # DG/UX GCC 2.95.x, 3.x.x rev (DG/UX) links -lthread
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+       # with the switch -threads
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+       if test "$arg" = "-threads"; then
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+         case "$host" in
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+         i[3456]86-*-dgux*)
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+           deplibs="$deplibs $arg"
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+           continue
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+           ;;
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+         esac
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+       fi
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+       ;;
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+
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+      -pthread*)
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+       # DG/UX GCC 2.95.x, 3.x.x rev (DG/UX) links -lthread
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+       # with the switch -pthread
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+       if test "$arg" = "-pthread"; then
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+         case "$host" in
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+         i[3456]86-*-dgux*)
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+           deplibs="$deplibs $arg"
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+           continue
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+           ;;
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+         esac
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+       fi
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+       ;;
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+
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       -l*)
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        if test "$arg" = "-lc"; then
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          case "$host" in
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-         *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos*)
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+         *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos* | i[3456]86-*-dgux*)
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            # These systems don't actually have c library (as such)
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+           # It is wrong in DG/UX to add -lc when creating shared/dynamic objs/libs
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            continue
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            ;;
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          esac
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@@ -1248,6 +1275,12 @@
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          temp_deplibs=
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          for deplib in $dependency_libs; do
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            case "$deplib" in
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+           -thread*)
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+                temp_deplibs="$temp_deplibs $deplib"
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+                ;;
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+           -pthread)
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+                temp_deplibs="$temp_deplibs $deplib"
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+                ;;
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            -R*) temp_xrpath=`$echo "X$deplib" | $Xsed -e 's/^-R//'`
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                 case " $rpath $xrpath " in
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                 *" $temp_xrpath "*) ;;
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@@ -1709,6 +1742,13 @@
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          done
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          ;;
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+       dgux)
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+         # Leave mostly blank for DG/UX
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+         major=
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+         versuffix=".$current.$revision";
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+         verstring=
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+         ;;
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+
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        linux)
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          major=.`expr $current - $age`
204
          versuffix="$major.$age.$revision"
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@@ -1792,8 +1832,9 @@
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207
        dependency_libs="$deplibs"
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        case "$host" in
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-       *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos*)
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+       *-*-cygwin* | *-*-mingw* | *-*-os2* | *-*-beos* | i[3456]86-*-dgux*)
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          # these systems don't actually have a c library (as such)!
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+         # It is wrong in DG/UX to add -lc when creating shared/dynamic objs/libs
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          ;;
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        *)
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          # Add libc to deplibs on all other systems.

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