Creating simple shared library using gcc under Solaris 10

Hi All:
I apologize if this is too newbie a question but have seen nothing that works for me yet.
I'm trying to create a shared library that contains a single object file using gcc (as installed on Solaris 10). I compiled the source code as follows:
gcc -c -fPIC x.cpp -o x.o
and got the x.o object file created and readable.
I then tried (from sample code on line):
gcc -shared -Wl,-soname,libMyLib.so.1 -o libMyLib.so.1.0.1 x.o
and get the following errors:
ld: warning: option -o appears more than once, first setting taken
ld: fatal: file libMyLib.so.1: open failed: No such file or directory
ld: fatal: File processing errors. No output written to x.o
collect2: ld returned 1 exit status

-soname is a GNU ld option. Use -h instead.
NB:
- you should use g++ not gcc to compile C++ code
- this forum is about the Oracle C++ compiler, not gcc. With it, you would do:
CC -c -KPIC x.cpp
CC -G -h libMyLib.so.1 -o libMyLib.so.1.0.1 x.o

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To generate DLL
create bcc32.cfg file in %BORLAND_INSTALL%/BCC5/bin Folder
In the bcc32.cfg file add following code
-I"%BORLAND_INSTALL%\BCC55\include;%JAVA_HOME%\include;%JAVA_HOME%\include\win32"
-L"%BORLAND_INSTALL%\BCC55\lib;%BORLAND_INSTALL%\BCC55\Lib\PSDK;"
i.e the path for borland compiler and java.
now goto prompt and say
prompt>bcc32 -tWM -tWD mymac.c
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Now say
prompt>implib -c mymac.lib mymac.dll
That's it!!
there you are with dll
Now you can run the mac.class file by using java
VC++
Click File->New->Win32Dynamic-Link Library
Give name and Select
A simple DLL project
You will have
myMac.CPP file
// myMac.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"
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regards
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Exceptions not caught in shared library when compiled under Sun Studio 9

I realize it's a fairly old version of Sun Studio, however if at all possibly we'd like to avoid updating to the latest.
Sun Studio 9, version reports
version of "/opt/SUNWspro/bin/../prod/bin/../../bin/cc": Sun C 5.6 2004/07/15
version of "/opt/SUNWspro/bin/../prod/bin/../../bin/CC": Sun C++ 5.6 2004/07/15
uname -a
SunOS sunblade 5.9 Generic_118558-27 sun4u sparc SUNW,Sun-Blade-100
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Stack Trace:
ffffffff7daa871c lwpkill (6, 0, ffffffff7fffd9c0, ffffffff7d3064d4, 2, ffffffff7fffd9ec) + 8
ffffffff7da3e4b8 abort (ffffffff7d40dac8, ffffffff7d40cc38, ffffffff7d411e78, 10604c, 2, ffffffff7d40dac8) + 100
ffffffff7d3064d4 __1cH__CimplRdefault_terminate6F_v_ (ffffffff7d40dac8, ffffffff7d40cc38, ffffffff7d411e78, 10604c, 104e40, ffffffff7d3064d0) + 4
ffffffff7d3062b4 __1cH__CimplMex_terminate6F_v_ (ffffffff7d40de40, 0, 0, ffffffff7d40de40, ffffffff7d40c978, 1) + 24
ffffffff7d306f04 exthrow_body (ffffffff7d40de40, 0, 0, 105af4, 52, ffffffff7d40e2e8) + 84
ffffffff7d306e58 __1cG__CrunIex_throw6Fpvpkn0AQstatic_type_info_pF1_v_v_ (ffffffff7d40dec8, ffffffff7f0dea78, ffffffff7ecb6b28, ffffffff7d40de40, 0, ffffffff7d40de40) + 3c
ffffffff7ecb6d90 __1cLIGExceptionFThrow6FnQenumIGErrorCodes_pkcxxp2x_v_ (fffffffffffff3e3, 0, 0, 0, ffffffff7f1187da, a0) + 80
ffffffff7ecb6e78 __1cOThrowException6FnQenumIGErrorCodes_pkcxxp1x_v_ (fffffffffffff3e3, 0, 0, 0, ffffffff7f1187da, a0) + 30
ffffffff7f083304 __1cSIGRasterProcessingNVerifyPalette6FpnMIGRasterPage_nTenumIGContrastModes__v_ (1001f3c10, 0, 0, 0, 0, 0) + b4
ffffffff7f083760 __1cSIGRasterProcessingOInvertContrast6FpnMIGRasterPage_nTenumIGContrastModes_nTenumIGColorChannels_pnPtagAT_RECTANGLE__v_ (1001f3c10, 0, 0, ffffffff7fffe1a8, 0, 0) + 20
ffffffff7f039a2c iIG_IP_contrast_invert (1001f3c10, 100162b10, 0, 0, 0, 0) + 104
ffffffff7f039ba0 iIG_IP_contrast_invert_masked (1001f3c10, 100162b10, 0, 0, 0, 0) + 80
000000010000b4e0 ipcontrast_invert_notify (10014d000, 10014d, 0, 100000, 100162000, 100162) + 48
Try/catch block:
     try
          <Triggering function>
     catch(const IGException& ige)
          <Handling Code>
The code which throws the exception is a static method of IGException which has a basic throw line:
     throw IGException(...);
Source code is compiled with the following flags, none of which I could find any info to suggest affect this:
CC -c -Xt -xCC -misalign -xarch=v9 -O
Linking of the shared object is then done via the following, again nothing obvious that could cause issues. mapfile is an empty file.
ld -o <outputfilename> -G -z textoff -M mapfile -z noversion -64 -h <outputfilename> <object files> -L/opt/SUNWspro/lib/v9 -lCrun -lX11 -lc -lm
I did read somewhere mentioning to make sure to use RTLD_GLOBAL if using dlopen on the .so, but the test app is using ld to link the library.
Does anyone have any ideas why with the Sun Studio 9 compiler these exceptions are not being caught? Based on the fact they are caught on all other compilers, i'm guessing this issue is with the compiler.
Also, as a test it seems that if the shared object is not built as a 64-bit object, then everything works. The issue only seems to occur when it is a 64-bit object. Likely an issue with the 64-bit compiling?
Edited by: 837682 on Feb 17, 2011 9:23 AM

As the other poster pointed out, you need to link the shared library using CC, not ld. I should have noticed that error in the original post.
Try using CC instead of ld in your link command. The CC command causes additional files to be linked into the shared library that are required for proper operation, and particularly for exception handling. I think that is the actual source of your problem.
You should not use -L options that point into the compiler installation area, and when you use CC to link, you don't need to.
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By any chance, did you install your compiler by copying it from another installation? If you do that, you need to use tar, not cp, to ensure that symbolic links are preserved.

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or
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Mihoko

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Message was edited by: sinfoni12345
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[email protected] <810> gcc --version
i686-apple-darwin8-gcc-4.0.1 (GCC) 4.0.1 (Apple Computer, Inc. build 5363)
[email protected] <811> uname -a
Darwin foxtrot.vni.com 8.8.1 Darwin Kernel Version 8.8.1: Mon Sep 25 19:42:00 PD
T 2006; root:xnu-792.13.8.obj~1/RELEASE_I386 i386 i386
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========= kk.h ===========
#include<stdio.h>
#include<math.h>
void sub();
=========== sub.c =========
#include "kk.h"
void sub() {
printf("sub = %g\n", fabs(-2.0));
======== main.c ========
#include "kk.h"
main() {
sub();
=====================
[email protected] <792> gcc -c -fPIC sub.c
[email protected] <793> gcc -o libkk.so -dynamic -r sub.o
[email protected] <794> gcc main.c libkk.so -lm
/usr/bin/ld: multiple definitions of symbol _NXArgc
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libkk.so definition of _NXArgc in section (_DATA,_data)
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/usr/lib/gcc/i686-apple-darwin8/4.0.1/../../../crt1.o definition of _NXArgv in section (_DATA,_data)
libkk.so definition of _NXArgv in section (_DATA,_data)
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/usr/lib/gcc/i686-apple-darwin8/4.0.1/../../../crt1.o definition of _progname in section (_DATA,_data)
libkk.so definition of _progname in section (_DATA,_data)
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libkk.so definition of _environ in section (_DATA,_data)
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collect2: ld returned 1 exit status
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What does the above errot mean? How to rectify it.It will be of great help if you anybody can give me clues.

It means that your compiler options are wrong.
You need to create a shared library.
Instead you are creating an executable, which is not the same as a shared library.
If you search this forum you will find posts with command line options that work.

Creating simple shared library using gcc under Solaris 10

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