Hi Eric,
this are the variables per Linux platform:
1) compiler:
gcc (<= RH 5.0)
egcs (>= RH 5.1)
2) libc:
libc5 (<= RH 4.2)
libc6/glibc (>= RH 5.0)
So on RH5.0 you should have gcc/glibc. In that case take
the binary distribution:
ftp://root.cern.ch/root/root_v2.00.Linux.2.0.33.glibc.tar.gz
Further, don't compile with any exception handling or RTTI options on.
The exact compiler options for your platform should be copied from
the file $ROOTSYS/test/Makefile.
Cheers, Fons.
E Anciant wrote:
>
> Hello,
>
> I am trying to implement some code using ROOT
> on linux debian with gcc & libc6.
>
> I installed the ROOT binaries for Redhat5.0 ( glibc & gcc )
> (I have been told glibc and libc6 were equivalent, may be this
> is the source of all my problems..)
>
> root works just fine, the /test exemples compile
> and run, the /tutorials exemples execute without problem,
>
> Yet, If I compile several shared libraries and load them
> into cint, cross references from one to the other are not
> resolved.
>
> Here follows a little exemple to illustrate this:
>
> I have a little C routine hello.C that I compile into a shared
> lib libt1.so: (Don't pay attention to all the include paths,
> this is because I am using some sort of generic makefile,
> those include paths have no effect.)
>
> sip bash t1 :more hello.c
> void hello() {
> printf("hello word \n");
> }
> sip bash t1 :
>
> gcc -O2 -fwritable-strings -O -Wall -fPIC -DLinux
> -I/home/anciant/CLAS/inc_derived -I.
> -I/mnt/cdrom/release-1-19/packages/include
> -I/mnt/cdrom/release-1-19/packages/inc_derived -I/usr/local/root/include
> -c \
> hello.c -o /home/anciant/CLAS/obj/Linux/t1_hello_sh.o;
> hello.c: In function `hello':
> hello.c:2: warning: implicit declaration of function `printf'
> g++ -shared \
> /home/anciant/CLAS/obj/Linux/t1_hello_sh.o \
> -o /home/anciant/CLAS/slib/Linux/libt1.so
>
> I make a small class hellc that calls the hello routine
> in its constructor:
>
> sip bash t2 :more hellc.h
> extern "C" {
> void hello();
> }
>
> class hellc {
> public:
> hellc() {hello(); }
> };
>
> sip bash t2 :
>
> sip bash t2 :more hellc.cc
> #include "hellc.h"
> sip bash t2 :
> sip bash t2 :more t2_LinkDef.h
> #ifdef __CINT__
>
> #pragma link off all globals;
> #pragma link off all classes;
> #pragma link off all functions;
>
> #pragma link C++ class hellc;
>
> #endif
> sip bash t2 :g++ -fhandle-exceptions -O -Wall -fPIC -DLinux
> -I/home/anciant/CLAS/inc_derived -I. -I./
> -I/mnt/cdrom/release-1-19/packages/include
> -I/mnt/cdrom/release-1-19/packages/inc_derived -I/usr/local/root/include
> -c \
> hellc.cc -o /home/anciant/CLAS/obj/Linux/t2_hellc_sh.o
> Generating library dictionnary
> rootcint -f t2Cint.cc -c \
> hellc.h t2_LinkDef.h || \
> rm t2Cint.cc t2Cint.h;
> Note: operator new() masked 1c
> Note: operator delete() masked 1c
> Class hellc: Streamer() not declared
> Class hellc: ShowMembers() not declared
> mv t2Cint.cc /home/anciant/CLAS/src_derived/t2Cint.cc
> mv t2Cint.h /home/anciant/CLAS/inc_derived/t2Cint.h
> g++ -fhandle-exceptions -O -Wall -fPIC -DLinux
> -I/home/anciant/CLAS/inc_derived -I. -I./
> -I/mnt/cdrom/release-1-19/packages/include
> -I/mnt/cdrom/release-1-19/packages/inc_derived -I/usr/local/root/include
> -c \
> /home/anciant/CLAS/src_derived/t2Cint.cc -o
> /home/anciant/CLAS/obj/Linux/t2Cint.o
> g++ -shared \
> /home/anciant/CLAS/obj/Linux/t2_hellc_sh.o
> /home/anciant/CLAS/obj/Linux/t2Cint.o\
> -o /home/anciant/CLAS/slib/Linux/libROOTt2.so
> sip bash t2 :
>
> Now if I load the two libraries in Cint, and try to create
> one hellc object, it crashes:
>
> sip bash t2 :root
> *******************************************
> * *
> * W E L C O M E to R O O T *
> * *
> * Version 2.00/13 30 October 1998 *
> * *
> * You are welcome to visit our Web site *
> * http://root.cern.ch *
> * *
> *******************************************
>
> CINT/ROOT C/C++ Interpreter version 5.13.78, Oct 22 1998
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] .L /home/anciant/CLAS/slib/Linux/libROOTt2.so
> root [1] .L /home/anciant/CLAS/slib/Linux/libt1.so
> root [2] .class hellc
> ===========================================================================
> class hellc
> size=0x1
> (tagnum=354,voffset=-1,isabstract=0,parent=-1,gcomp=0,=~cd=0)
> List of base
> class--------------------------------------------------------
> List of member
> variable---------------------------------------------------
> Defined in hellc
> List of member
> function---------------------------------------------------
> Defined in hellc
> filename line:size busy function type and name
> (compiled) 0:0 0 public: hellc hellc(void);
> (compiled) 0:0 0 public: hellc hellc(hellc&);
> (compiled) 0:0 0 public: void ~hellc(void);
> root [3]
> root [3] hellc h;
> /usr/local/root/bin/root.exe: error in loading shared libraries
> /home/anciant/CLAS/slib/Linux/libROOTt2.so: undefined symbol: hello
> sip bash t2 :
>
> Yet, if I put all the objects into one single library, it works:
>
> sip bash t2 :g++ -shared \
> > /home/anciant/CLAS/obj/Linux/t2_hellc_sh.o /home/anciant/CLAS/obj/Linux/t2Cint.o\
> > /home/anciant/CLAS/obj/Linux/t1_hello_sh.o \
> > -o /home/anciant/CLAS/slib/Linux/libtest.so
> sip bash t2 :
> sip bash t2 :root
> *******************************************
> * *
> * W E L C O M E to R O O T *
> * *
> * Version 2.00/13 30 October 1998 *
> * *
> * You are welcome to visit our Web site *
> * http://root.cern.ch *
> * *
> *******************************************
>
> CINT/ROOT C/C++ Interpreter version 5.13.78, Oct 22 1998
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] .L /home/anciant/CLAS/slib/Linux/libtest.so
> root [1] .class hellc
> ===========================================================================
> class hellc
> size=0x1
> (tagnum=354,voffset=-1,isabstract=0,parent=-1,gcomp=0,=~cd=0)
> List of base
> class--------------------------------------------------------
> List of member
> variable---------------------------------------------------
> Defined in hellc
> List of member
> function---------------------------------------------------
> Defined in hellc
> filename line:size busy function type and name
> (compiled) 0:0 0 public: hellc hellc(void);
> (compiled) 0:0 0 public: hellc hellc(hellc&);
> (compiled) 0:0 0 public: void ~hellc(void);
> root [2]
> root [2] hellc h
> hello word
> root [3]
>
> If I try the same business on Sun, with 2 libraries,
> it works:
>
> cc -O -KPIC -DSunOS -D_SUNOS_SOURCE
> -I/home/crash4/anciant/CLAS/inc_derived -I.
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/include
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/inc_derived
> -I/opt/gnu/include -I/usr/local/include -I/usr/dt/include
> -I/usr/openwin/share/include -I/home/crash4/thauger/root/include -c \
> hello.c -o
> /home/crash4/anciant/CLAS/obj/SunOS/t1_hello_sh.o;
> CC -O -G \
> /home/crash4/anciant/CLAS/obj/SunOS/t1_hello_sh.o \
> -o /home/crash4/anciant/CLAS/slib/SunOS/libt1.so
> phns32: /home/anciant/tests/t1 <198>
>
> CC -O -KPIC -DSunOS -D_SUNOS_SOURCE
> -I/home/crash4/anciant/CLAS/inc_derived -I. -I./
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/include
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/inc_derived
> -I/opt/gnu/include -I/usr/local/include -I/usr/dt/include
> -I/usr/openwin/share/include -I/home/crash4/thauger/root/include -c \
> hellc.cc -o
> /home/crash4/anciant/CLAS/obj/SunOS/t2_hellc_sh.o
> Generating library dictionnary
> rootcint -f t2Cint.cc -c \
> hellc.h t2_LinkDef.h || \
> rm t2Cint.cc t2Cint.h;
> Note: operator new() masked 1c
> Note: operator delete() masked 1c
> Class hellc: Streamer() not declared
> Class hellc: ShowMembers() not declared
> mv t2Cint.cc /home/crash4/anciant/CLAS/src_derived/t2Cint.cc
> mv t2Cint.h /home/crash4/anciant/CLAS/inc_derived/t2Cint.h
> CC -O -KPIC -DSunOS -D_SUNOS_SOURCE
> -I/home/crash4/anciant/CLAS/inc_derived -I. -I./
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/include
> -I/home/crash4/thauger/CLAS/builds/TEST/packages/inc_derived
> -I/opt/gnu/include -I/usr/local/include -I/usr/dt/include
> -I/usr/openwin/share/include -I/home/crash4/thauger/root/include -c \
> /home/crash4/anciant/CLAS/src_derived/t2Cint.cc -o
> /home/crash4/anciant/CLAS/obj/SunOS/t2Cint.o
> CC -O -G \
> /home/crash4/anciant/CLAS/obj/SunOS/t2_hellc_sh.o
> /home/crash4/anciant/CLAS/obj/SunOS/t2Cint.o\
> -o /home/crash4/anciant/CLAS/slib/SunOS/libROOTt2.so
> phns32: /home/anciant/tests/t2 <200> root
> Warning in <TGClient::GetColorByName>: couldn't retrieve color
> LightYellow
> *******************************************
> * *
> * W E L C O M E to R O O T *
> * *
> * Version 2.00/13 30 October 1998 *
> * *
> * You are welcome to visit our Web site *
> * http://root.cern.ch *
> * *
> *******************************************
>
> CINT/ROOT C/C++ Interpreter version 5.13.78, Oct 22 1998
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] .L /home/crash4/anciant/CLAS/slib/SunOS/libROOTt2.so
> root [1] .L /home/crash4/anciant/CLAS/slib/SunOS/libt1.so
> root [2] .class hellc
> ===========================================================================
> class hellc
> size=0x1
> (tagnum=354,voffset=-1,isabstract=0,parent=-1,gcomp=0,=~cd=0)
> List of base
> class--------------------------------------------------------
> List of member
> variable---------------------------------------------------
> Defined in hellc
> List of member
> function---------------------------------------------------
> Defined in hellc
> filename line:size busy function type and name
> (compiled) 0:0 0 public: hellc hellc(void);
> (compiled) 0:0 0 public: hellc hellc(hellc&);
> (compiled) 0:0 0 public: void ~hellc(void);
> root [3]
> root [3] hellc h
> hello word
> root [4]
>
> I would really apreciate some advices, hints or suggestions
> before I go into the business of recompiling all ROOT sources
> for my compiler and my version of libc.
> I know I tried that some time ago, and it made things rather worse
> (root would not even execute.)
>
> thanks,
>
> eric
>
> --
> ----- Eric Anciant ------------
> DAPNIA/SPhN - Bat 703 - Orme des merisiers
> CE-SACLAY - 91191 GIF-SUR-YVETTE Cedex - FRANCE
> Office: (33 - 1) 69 08 22 47 fax: (33-1) 69 08 75 84
--
Org: CERN, European Laboratory for Particle Physics.
Mail: 1211 Geneve 23, Switzerland Phone: +41 22 7679248
E-Mail: Fons.Rademakers@cern.ch Fax: +41 22 7677910
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