oci.lib 32bits | 64 bits

[Josemi Antelo]

Hello!

I want my program to run both 32bit and 64bit. So I guess I must to have
different oci.lib and oci.dll: oci32.lib, oci32.dll, oci64.lib and oci64.dll.
Where I can get oci32.lib,oci64.lib,oci32.dll,oci64.dll for Oracle 11g?.
I have seen it usually specifies the type of library in "oci_import.h" right?

thank you very much
attentively
Josemi

[Vincent Rogier]

Hi,

a 32bit process can only load 32bits libraries and a 64 bits process 64bits
libraries.
In order to load 32 or 64bits libraries, you must create 2 versions of your
applications.
On windows, oracle libraries has the same name oci.dll whatever the version
(32 or 64bits)
You don't have to do any thing special regarding ocilib. You have to link each
version of your application with the right ocilib version (32bits =>
ocilib/lib32/ocilib.lib, 64bits => ocilib/lib64/ocilib.lib)
then, ocilib will load the client at runtime that is accessible to it using
the regular window rules (path environment) whatever its version.

Hope it helps.

vincent

[Josemi Antelo]

Hi Vincent,

First Off, many thanks for your rapid answer :-)
But I don't use ocilib.lib. I compile your source code with my source code.
Where do you specify the import library? I can't understand how the compiler
know what library must to import.
Until now, I compiled my project with your source code without specify what
library to use, and Visual Studio 2005 has compiled fine (32bits) but now with
64 bits, not.

Yours sincerely
Josemi

[Vincent Rogier]

check :

• \proj\dll\ solution (project used to compile ocilib library binaires of each release)
• \proj\dll\demo project files

[Josemi Antelo]

Hi Vincent,

Under proj I've got:
dll. There isn't any project with "solution" name
mingw. There is only "ocilib_static_lib_mingw.cbp". I don't know what is it
test. There are some project for VS2005, VS2008 and VS2010

I compile dll\ocilib_dll_vs2005.sln and OK.
But my question is where do you define the import "oci.lib". My intention is
to have two oci.lib: oci32.lib and oci64.lib to create two projects: 32bits
and 64bits. but How or where can I define what library to import?
I tried to find where do you define the library to import and not found it.

Many thanks for your patience :-)

Yours sincerely
Josemi

[Vincent Rogier]

hi,

On windows, ocilib loads dynamically oci.dll and thus the import libraries
"*.lib" are not used.

the name of the dll that is loaded is defined by the macro OCI_DL (see
src\oci_import.h). Thus it cannot be modified à runtime. As mentioned earlier,
the oracle 32 bits and 64 bits libraries folder path can be passed at runtime
to OCI_Initialize()
you can define OCI_DL with the ddl in your project options or in code before
including ocilib.h

[Josemi Antelo]

Hi Vincent,

Yes, this is true if I use OCI_IMPORT_RUNTIME, but I compile with
OCI_IMPORT_LINKAGE option.
I still do not understand, how VS2005 know what library must to import. I
found in "oci_import.h" an instruction:

ifdef _MSC_VER

pragma comment(lib, "oci.lib")

endif

and I thought that was the manner to define the library to import, but not. I
tried to remove or change the name like this:

pragma comment(lib, "oci32.lib")

and the compiler always search "oci.lib" WHY?,
I'm still think there is any place in your code or wherever where it define
that library to import is "oci.lib" :'-(

Thank you

Yours sincerely
Josemi

[Nobody/Anonymous]

how about MinGW64 on win7-64bits, the lib64 directory don't contain the
libociliba.a for 64bits windows.

[Nobody/Anonymous]

I see

Installing and using OCILIB on Microsoft Windows
32bits and 64bits DLLs are provided for x86 architectures. Visual .NET
(2005/2008) solutions are also provided to recompile the Dlls and the demo.
•Uncompress the archive (ocilib-x.y.z-windows.zip)
•Copy ocilib\include\ocilib.h to a folder listed in the compiler headers
folders
•Copy ocilib.lib to a folder listed in the linker libraries folders
•Copy ocilib.dll to a folder included in the PATH environment variable

is the compiled version of OCILIB ('a' -> ANSI, 'w' -> Unicode, 'm' -> Mixed)

To use OCILIB in a project :
•include "ocilib.h" in your application
•define call convention (OCI_API) to __stdcall
•define charset mode (OCI_CHARSET_ANSI | OCI_CHARSET_MIXED| OCI_CHARSET_WIDE |
OCI_CHARSET_UFT8)

Note for MinGW users:
•Precompiled 32bits static libraries libocilib.a are provided
•To use OCILIB dll's, copy/rename import libraries ocilib.lib to libocilib.lib
•Add the desired version (static/shared + charset) of the library to the
linker options

[Nobody/Anonymous]

gcc -m64 -Id:\ocilib\include -Ld:\ocilib\lib64 -DOCI_CHARSET_ANSI
-DOCI_API=__stdcall demo.c -o main.exe -lociliba

异常代码: c0000005

D:\OCIDev>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=d:/strawberry/c/bin/../libexec/gcc/x86_64-w64-mingw32/4.6.
3/
lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../../../src/gcc-4.6.3/configure --build=x86_64-w64-mingw32
--t
arget=x86_64-w64-mingw32 --enable-languages=c,c++,fortran,objc,obj-c++
--enable-
libgomp --enable-lto --enable-bootstrap --enable-checking=release --enable-
versi
on-specific-runtime-libs --disable-multilib --disable-nls --disable-
win32-regist
ry --disable-werror --with-pkgversion='gcc-4.6.3 release with patches '
--with-sysroot=/gccbuild/prefix/mingw64 --with-gmp=/
gccbuild/prefix/mingw64 --with-mpfr=/gccbuild/prefix/mingw64 --with-
mpc=/gccbuil
d/prefix/mingw64 --with-ppl=/gccbuild/prefix/mingw64 --with-
cloog=/gccbuild/pref
ix/mingw64 --with-bugurl=http://mingwfp.znix.com
--with-gnu-ld --prefix=/gccbuil
d/prefix/mingw64 --with-local-prefix=/gccbuild/prefix/mingw64 --with-libiconv-
pr
efix=/gccbuild/prefix/mingw64
Thread model: win32
gcc version 4.6.3 (gcc-4.6.3 release with patches )

D:\OCIDev>

the execute program crashed ...with code c0000005,

how can I compile the demo with MinGW64 running on Win7 -64bits ....

[Nobody/Anonymous]

where is libociliba.a for MinGW64 in the directory of lib64
on windows?

or How can I make one? Please,your wish.

[Anonymous]

Same question, I want to build 64 bit version of liboci.a for MIGW.
How do I do that?

ocilib_static_lib_mingw.cbp project only supports 32 bit. I tried building project with 64 bit TDM gcc, but it fails...

C:\ocilib\src\oci_types.h|253|error: expected '=', ',', ';', 'asm' or 'attribute' before 'ubig_ora'|

[Anonymous]