[Glass] C code for Gembuilder For C

[Dale Henrichs via Glass]

Gustav,

Here'sthe answer from engineering:

   The warnings about undefined Gci*   symbols is normal.
   Those functions are resolved at runtime after one of the 
  $GEMSTONE/lib/libgci*.so
   library is loaded.  The library load is normally accomplished by
   calling  GciRtlLoad   or GciTsLoad  from your application's 
initialization code .

   See comments on gcirtl.hf for GciRtlLoad and GciTsLoad
   The "default path" is  $GEMSTONE/lib

   libpam0g-dev is an appropriate package .

   If using the thread-safe GCI library ,  include  gcits.hf instead of 
gci.hf
   and call GciTsLoad instead of GciRtlLoad .

Dale

On 8/7/17 10:29 PM, gustav de ridder via Glass wrote:
> Hallo
>
> I am new to gemstone and still leaning c.
> I am writing c code for gembuilder for c.
>
> I wrote a c program that includes gci.hf and gcirtl.hf as specified  
> in the GemBuilder for C documentation.
>
> I am using Ubuntu 16.04.1 LTS 64bit, GemStone/S 64 Bit v3.3.3. I use 
> gcc/g++ version 5.4.0 20160609 to compile the code.
>
> I am using the next commands to compile the code.
>
> Compile c code:
> $ g++ -fmessage-length=0 -fcheck-new -O3 -ggdb -m64 -pipe -D_REENTRANT 
> -D_GNU_SOURCE -pthread -fPIC -fno-strict-aliasing -fno-exceptions 
> -I/opt/gemstone/GemStone64Bit3.3.3-x86_64.Linux/include -x c++ -c 
> userCode.c -o userCode.o
>
> Link c objects:
> $ g++ userCode.o $GEMSTONE/lib/gcirtlobj.o -Wl,-traditional 
> -Wl,--warn-unresolved-symbols -m64 -lpthread -lcrypt -ldl -lc -lm -lrt 
> -lpam -lpam_misc -Wl,-z,muldefs -o userAppl
>
> Can you please help me by giving some suggestions on debugging the code?
>
> When I compile and link the c code I get the following warnings:
> /opt/gemstone/GemStone64Bit3.3.3-x86_64.Linux/lib/gcirtlobj.o: In 
> function `GciTravBufHolder::free()':
> /export/derby1/users/buildgss/33/build40760/src/gcicpp.hc:61: warning: 
> undefined reference to `GciFree'
> /opt/gemstone/GemStone64Bit3.3.3-x86_64.Linux/lib/gcirtlobj.o: In 
> function `GciTravBufType::malloc(unsigned long, int, char const*)':
> /export/derby1/users/buildgss/33/build40760/src/gcicpp.hc:33: warning: 
> undefined reference to `GciUtlMalloc_'
> /opt/gemstone/GemStone64Bit3.3.3-x86_64.Linux/lib/gcirtlobj.o: In 
> function `GciRtlUnload':
> /export/derby1/users/buildgss/33/build40760/src/gcirtl.c:189: warning: 
> undefined reference to `GciShutdown'
> /export/derby1/users/buildgss/33/build40760/src/gcirtl.c:190: warning: 
> undefined reference to `GciUnload'
> /opt/gemstone/GemStone64Bit3.3.3-x86_64.Linux/lib/gcirtlobj.o: In 
> function `GciTravBufType::GciTravBufType(unsigned long)':
> /export/derby1/users/buildgss/33/build40760/src/gcicpp.hc:45: warning: 
> undefined reference to `GciHostCallDebuggerMsg'
>
> How do I go about addressing these warnings?
>
> I had some problems importing the pam libs, the system could not 
> locate them. I installed libpam0g-dev this solved the problem. Should 
> I have done something else?
>
> Are there any more libs that is recommended to install?
>
> Any pointers and advice will be appreciated.
>
> Thanking you in advance
> Gustav
>
>
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