CC bug while loading jvm?

Question

The following code generates a segmentation fault while it's compile with CC and not with gcc.
The crash only occurs if the jvm is loaded and if the buffer size is 100000. (I tried with 50000 and there's no crash).
I assume that the crash occurs because of a corruption of the stack pointer but I don't know exactly what happens for the moment. Does anyone have an idea?
#include <stdio.h>
#include "jni.h"
#define BUFFER_SIZE 100000
typedef struct
char sz[BUFFER_SIZE];
} my_struct;
void bar(my_struct s)
return;
void foo()
my_struct s;
bar(s);
bar(s);
bar(s);
bar(s);
return;
void useJVM()
JavaVMOption options[2];
JavaVMInitArgs vm_args;
JavaVM *jvm;
JNIEnv *env;
long result;
jclass cls;
options[0].optionString = ".";
options[1].optionString = "-Djava.compiler=NONE";
vm_args.version = JNI_VERSION_1_2;
vm_args.options = options;
vm_args.nOptions = 2;
vm_args.ignoreUnrecognized = JNI_TRUE;
result = JNI_CreateJavaVM*(&jvm,(*void* **)&env, &vm_args);
if (result == JNI_ERR ) {
fprintf(stdout,"Error invoking the JVM");
return;
return;
int main( int argc,
char **argv)
if (argc != 1)
useJVM();
foo();
fprintf(stdout,"OK\n");
return 0;
} {noformat}
Built like this :
CC -mt -PIC -compat=4 -c -g -I/usr/j2sdk1.4.2/include/ -I/usr/j2sdk1.4.2/include/solaris/ mainjni.c
CC -mt -PIC -compat=4 -z allextract -o bugsun mainjni.o -L/usr/j2sdk1.4.2/jre/lib/sparc/ -ljvm -lthread -lcthe program exits with a segmentation fault.
Built like this :
gcc -c -g -I/usr/j2sdk1.4.2/include/ -I/usr/j2sdk1.4.2/include/solaris/ mainjni.c
gcc -o bugsun mainjni.o -L/usr/j2sdk1.4.2/jre/lib/sparc/ -ljvm -lthread -lcthe program works. Is it a CC bug?
Edited by: gude on May 30, 2008 9:02 AM
Edited by: gude on May 30, 2008 9:04 AM

Answer 1

My code :
#include <stdio.h>
#include "jni.h"
#define BUFFER_SIZE                     100000
typedef struct
        char sz[BUFFER_SIZE];
} my_struct;
void bar(my_struct s)
        return;
void foo()
        my_struct s;
        bar(s);
        bar(s);
        bar(s);
        bar(s);
        return;
void useJVM()
        JavaVMOption options[2];
        JavaVMInitArgs vm_args;
        JavaVM *jvm;
        JNIEnv *env;
        long result;
        jclass cls;
        options[0].optionString = ".";
        options[1].optionString = "-Djava.compiler=NONE";
        vm_args.version = JNI_VERSION_1_2;
        vm_args.options = options;
        vm_args.nOptions = 2;
        vm_args.ignoreUnrecognized = JNI_TRUE;
        result = JNI_CreateJavaVM(&jvm,(void **)&env, &vm_args);
        if(result == JNI_ERR ) {
          fprintf(stdout,"Error invoking the JVM");
          return;
        return;
int main(       int argc,
                        char **argv)
        if (argc != 1)
                useJVM();
        foo();
        fprintf(stdout,"OK\n");
        return 0;
}To compile with CC:
CC -mt -PIC -compat=4 -c -g  -I/usr/j2sdk1.4.2/include/ -I/usr/j2sdk1.4.2/include/solaris/  mainjni.c
CC -mt -PIC -compat=4 -z allextract -o bugsun mainjni.o -L/usr/j2sdk1.4.2/jre/lib/sparc/ -ljvm -lthread -lcTo compile with gcc:
gcc -c -g  -I/usr/j2sdk1.4.2/include/ -I/usr/j2sdk1.4.2/include/solaris/  mainjni.c
gcc -o bugsun mainjni.o -L/usr/j2sdk1.4.2/jre/lib/sparc/ -ljvm -lthread -lcI noticed that if I only call the function bar() three times in the function foo(), it works...