[Glass] GemBuilder for C compilation on 3.6.1

[Bill Erickson]

Can you show us the C stack trace at the point of the SIGSEGV?

------------------------------------------------------------------------
Bill Erickson
GemTalk Systems Engineering
15220 NW Greenbrier Parkway #240, Beaverton OR 97006
------------------------------------------------------------------------


On Sun, Jun 20, 2021 at 2:03 AM Iwan Vosloo via Glass <
glass at lists.gemtalksystems.com> wrote:

> Hi all,
>
> I am trying to compile C code that calls GemBuilder for C functions.
> I take inspiration from
>
> https://downloads.gemtalksystems.com/docs/GemStone64/3.6.x/GS64-GemBuilderforC-3.6.pdf
> sections 5.2 and 5.3.
>
> I am doing this on Ubuntu 20.04, using g++ 9.3.0 all of which are
> supported according to the above doc.
>
> I also have installed GemStone64Bit3.6.1-x86_64.Linux
>
> I have a simplified test program that just calls a simple function from
> libgcits. I can compile and link, but when I run the resultant program
> it segfaults when I callthe Gci function. I have to confess that I
> haven't touched C in 20 years, so I am probably doing stupid things. (I
> had this working with GemStone 3.4.1)
>
> Here is my program (test.c):
>
> #include <stdio.h>
> #include <gcits.hf>
>
> int main() {
>    const char *unencrypted_password = "abcde";
>    char *out_buff;
>    char *encrypted_password;
>    int encrypted_char;
>    unsigned int out_buff_size = 1000;
>    out_buff = (char *)malloc(out_buff_size * sizeof(char));
>    GciTsEncrypt(unencrypted_password, out_buff, out_buff_size);
>    free(out_buff);
>    return 0;
> }
>
> I build it using this makefile:
>
> COMPILE_FLAGS=-fmessage-length=0 -fcheck-new -O3 -ggdb -m64 -pipe \
>                -D_REENTRANT -D_GNU_SOURCE -pthread -fPIC \
>                -fno-strict-aliasing -fno-exceptions -x c++
>
> LINK_FLAGS=-m64 -Wl,-Bdynamic,--no-as-needed -lpthread -Wl,--as-needed \
>             -lcrypt -ldl -lc -lm -lrt -Wl,-traditional -Wl,-z,lazy
>
> all:
>         g++ -I${GEMSTONE}/include ${COMPILE_FLAGS} -c test.c -o test.o
>         g++ -L${GEMSTONE}/lib -lgcits-3.6.1-64 ${LINK_FLAGS} test.o -o test
>
>
> The options above are taken from 5.3 of the doc, except that I link
> gcits-3.6.1-64 library directly instead of using the run time loading as
> is explained earlier in the doc.
>
> What am I missing here?
>
> Regards
> Iwan
>
> --
>
>
> _______________________________________________
> Glass mailing list
> Glass at lists.gemtalksystems.com
> https://lists.gemtalksystems.com/mailman/listinfo/glass
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.gemtalksystems.com/mailman/private/glass/attachments/20210620/ec9a4e93/attachment.htm>