* Static initializer in shared libraries on Linux
@ 2001-09-16 6:08 Marcel Ruff
0 siblings, 0 replies; only message in thread
From: Marcel Ruff @ 2001-09-16 6:08 UTC (permalink / raw)
To: gcc
Hi,
i have two .so libs, and get a sig 11 when
accessing a static string variable,
accessing a static variable of type char*
works fine:
InitTest.H
-----------
class InitTest
{
public: static char * charName;
public: static string stringName;
};
#if EXTERN_MAIN
char * InitTest::charName = "Hello charP";
string InitTest::stringName = string("Hello string");
# endif
-----------
compile this into libInitTest.so
xy.C
------------
#define EXTERN_MAIN 1
....
// Runs fine:
cout << "C++: the charName=" << InitTest::charName << endl;
// Sig 11 - core dump:
cout << "C++: the stringName=" << InitTest::stringName << endl;
...
------------
compile this into xy.so
xy.C is run by a Java JVM using JNI.
Looking into the .so libs:
---------------------
nm -o *.so | grep charName
libxy.so:00028910 D _8InitTest.charName
libxy.so:0001bf60 t _GLOBAL_.D._8InitTest.charName
libxy.so:0001bf30 t _GLOBAL_.I._8InitTest.charName
nm -o *.so | grep stringName
libxy.so:0002d4c8 B _8InitTest.stringName
--------------------
The "string" class is never initialized whereas
the char* acts as expected!
Why?
Why is there no entry in libInitTest.so?
What do i have to change to get this running?
thanks for any help,
Marcel
--
Marcel Ruff
mailto:ruff@swand.lake.de
http://www.lake.de/home/lake/swand/
http://www.xmlBlaster.org
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2001-09-16 6:08 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2001-09-16 6:08 Static initializer in shared libraries on Linux Marcel Ruff
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).