0

我想通过 java jni C 代码调用 Cobol 程序。调用我的 java 代码后，出现以下错误：Java 运行时环境检测到致命错误：SIGSEGV (0xb) at pc=fffffffff2667174, pid=1174405432, tid=4

这是我在 Tandem 上编译的 Cobol 程序（XCOBFUNC.cob）：ecobol -c -Wshared XCOBFUNC.cob

    ?ENV COMMON;INNERLIST
    ?INSPECT, SYMBOLS

    IDENTIFICATION DIVISION.
    PROGRAM-ID.    XCOBFUNC.
    AUTHOR. TEST.

    ENVIRONMENT DIVISION.
    CONFIGURATION SECTION.
        SOURCE-COMPUTER.        TANDEM-K2006.
        OBJECT-COMPUTER.        TANDEM-K2006.
    DATA DIVISION.
    WORKING-STORAGE SECTION.
    01 D-RESULT        PIC S9(09) COMP.

    LINKAGE SECTION.
    77 D-STRING        PIC X(20).
    77 D-SHORT         PIC 9(04) COMP.
    77 D-LARGE         PIC 9(08) COMP.

    PROCEDURE DIVISION USING D-STRING, D-SHORT, D-LARGE.
    000-INIT.
        DISPLAY "I AM DOING COBOL NOW".
        COMPUTE D-RESULT = D-LARGE / D-SHORT.
        DISPLAY "D-STRING = " D-STRING.
        DISPLAY "D-LARGE = " D-LARGE.
        DISPLAY "D-SHORT = " D-SHORT.
        DISPLAY "D-RESULT = " D-RESULT.
        DISPLAY "LEAVING COBOL PROGRAM NOW".
        EXIT-PROGRAM.

这是我的 C 源文件（HelloJNI.c）：

#include <jni.h>
#include <stdio.h>
#include "HelloJNI.h"
#include "cobincl.h"

// Implementation of native method sayHello() of HelloJNI class
JNIEXPORT jshort JNICALL Java_HelloJNI_sayHello(JNIEnv *env, jobject thisObj, jint par1, jstring jName) {

   char outCStr[128] = "From C Program";
   jshort error = 0;
   short ds;
   long dl;
   char *tx = "Displayed in COBOL";

   const char *name = (*env)->GetStringUTFChars(env, jName, 0);
   int i;
   jint result = par1 + 5;


   printf("Hello World!\n");
   printf("par1 = %d \n", par1);
   printf("par1 = %s \n", name);

   (*env)->ReleaseStringUTFChars(env, jName, name);

   ds = 100;
   dl = 40000;

   XCOBFUNC(tx, &ds, &dl);   

   printf("ds = %d\n", ds);

   printf("I am back in C now and program is ending.\n");   

   return error;
}

这是我的 C 头文件（HelloJNI.h）：

/* DO NOT EDIT THIS FILE - it is machine generated */
#include <jni.h>
/* Header for class HelloJNI */

#ifndef _Included_HelloJNI
#define _Included_HelloJNI
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     HelloJNI
 * Method:    sayHello
 * Signature: (ILjava/lang/String;)S
 */
JNIEXPORT jshort JNICALL Java_HelloJNI_sayHello
  (JNIEnv *, jobject, jint, jstring);

#ifdef __cplusplus
}
#endif
#endif

这是我的 cobincl.h：

void XCOBFUNC (char *, short *, long *);
#pragma FUNCTION XCOBFUNC (cobol)

这是我的 Makefile：

CC=/usr/bin/c89
ELD=/usr/bin/eld

RM=rm -f

CFLAGS= -g -I $(JAVA_HOME)/include -I $(JAVA_HOME)/include/oss -I /G/system/system -I./include -Wallow_cplusplus_comments \
        -Wextensions -D_XOPEN_SOURCE_EXTENDED=1 -Wnowarn=141,209,1506,262 \
        -Wcall_shared -Wsystype=oss -Wtarget=tns/e -Wmap -Wverbose

#LDFLAGS = -set floattype IEEE_float -set SYSTYPE OSS -set HIGHPIN ON \
#          -set CPlusPlusDialect neutral -dll -m -verbose \
#          -l zcobdll -lcre -lcrtl -export_all

LDFLAGS = -set floattype IEEE_float -set SYSTYPE OSS -set HIGHPIN ON \
          -set CPlusPlusDialect neutral -dll -m -verbose \
          -lcre -lcrtl -l zcobdll -export_all


ALL = libhello.so

.SUFFIXES: .java .class .h .c .o 

.c.o: 
    $(CC) $(CFLAGS) -c $<

all: $(ALL)

clean:
    @$(RM) *.o *.so

HelloJNI.o: cobincl.h HelloJNI.h HelloJNI.c

libhello.so: HelloJNI.o XCOBFUNC.o
      $(ELD) HelloJNI.o XCOBFUNC.o -o libhello.so $(LDFLAGS)

这是我的java代码：

public class HelloJNI {
   static {
      System.loadLibrary("hello"); // Load native library at runtime
                                   // hello.dll (Windows) or libhello.so (Unixes)
   }

   public HelloJNI() {

   }

   public void sendToC() {

       int par1 = 5;
       String name = "Test";


       short temp = sayHello(par1, name);
       System.out.println("temp = " + temp);
   }



   // Declare a native method sayHello() that receives nothing and returns void
   private native short sayHello(int par1, String name);
   //private native String sayHello(int par1, String name, String[] tokensKeys, String[] tokensValues);

   // Test Driver
   public static void main(String[] args) {
      //new HelloJNI().sayHello();  // invoke  the native method
      HelloJNI myObject = new HelloJNI();

      myObject.sendToC();

   }
}

我很感激任何帮助，如果有人能向我展示任何关于 java 如何通过 JNI C 程序可以在 HP Tandem Non-Stop 上调用 Cobol 程序的示例，那就太好了。

Please see from compilation process:

File: /usr/local/home/urily/Java_C_COBOL/c/libcobol.so
    Segment(Read/Write/Execute)       Address             Size 
---------------------------------------------------------------------------
    text(Read/Execute)          0x0000000078000000     0x00002000


File: libhello.so
    Segment(Read/Write/Execute)
      Section                         Address             Size
---------------------------------------------------------------------------
    text(Read/Execute)          0x0000000078000000     0x00001000
      .tandem_info              0x0000000078000190     0x00000198
      .lic                      0x0000000078000328     0x00000188
      .dynamic                  0x00000000780004b0     0x00000150
      .liblist                  0x0000000078000600     0x00000020
      .dynstr2                  0x0000000078000620     0x00000032
      .IA_64.unwind             0x0000000078000658     0x00000048
      .IA_64.unwind_info        0x00000000780006a0     0x00000018
      .IA_64.unwind.strings     0x00000000780006b8     0x0000004a
      .rconst                   0x0000000078000710     0x00000030
      .plt                      0x0000000078000740     0x00000020
      .text                     0x0000000078000780     0x00000080
      .hash                     0x0000000078000800     0x000000dc
      .dynsym                   0x00000000780008e0     0x00000360
      .dynstr                   0x0000000078000c40     0x000001bd
      .hashval                  0x0000000078000e00     0x00000090
      .rela.dyn                 0x0000000078000e90     0x00000030

我看到 libhello.so 和 libcobol.so 的那段具有相同的地址 0x0000000078000000。我通过两个步骤手动创建了 libcobol.so：

  1. cobol -c -Wcall_shared -Wsystype=oss -Wmap XCOBFUNC.cob
  2. /usr/bin/eld XCOBFUNC.o -o libcobol.so -dll -m -verbose -l zcobdll -lcre -lcrtl

您如何创建具有不同地址的文本段，因为现在它们都具有相同的地址？

在我的 hs_err_pid.log 下面

#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=fffffffff2667174, pid=620757215, tid=4
#
# JRE version: 6.0
# Java VM: Java HotSpot(TM) Server VM (16.3-b01-svcnedccadmin:2011apr20-08:12 mixed mode nsk oss-ia64 )
# Problematic frame:
# C  [(DLL zcrtldll)+0x0]  printf + 0xF0 (DLL zcrtldll)+0x0
#
#  Please report this error to HP customer support.
#

---------------  T H R E A D  ---------------

Current thread (8330800):  JavaThread "main" [_thread_in_native, id=4, stack(809e000,81a1400)]


Frame 0: __stdio_fp + 0x171 (DLL zcrtldll)
        pc    : 0xfffffffff2667171
        ra    : 0xfffffffff26d6bf0
        sp    : 0x081a0510
        psp   : 0x081a0540
        cfm   : 0x0000020c      sol(ins+locals)=4, sof(ins+locals+outs)=12, sor=0
        bsp   : 0x081a1a10
        fpsr  : 0x9804c8a74433f
        pr    : 0x00008cbd
        br[0] : 0xfffffffff26d6bf0
        br[1] : 0x640303a0
        br[2] : 0x00000000
        br[3] : 0x00000000
        br[4] : 0x00000000
        br[5] : 0x00000000
        br[6] : 0xfffffffff26d6b00
        br[7] : 0xfffffffff90babc0
        lc    : 0x00000000
        ec    : 0x00000000

        gr0   : 0x00000000      0
        gr1   : 0x6cec84b0      1827439792
        gr2   : 0x6cec8608      1827440136
        gr3   : 0x7de00010      2111832080
        gr4   : 0x6cec84b0      1827439792
        gr5   : 0x081a0908      135923976
        gr6   : 0x080a2000      134881280
        gr7   : 0x0829e800      136964096
        gr8   : 0x64011640      1677792832
        gr9   : 0x00000008      8
        gr10  : 0x08330800      137562112
        gr11  : 0x00000000      0
        gr12  : 0x081a0510      135922960
        gr13  : 0xe0000002300009b6      -2305842999818450506
        gr14  : 0x7de00010      2111832080
        gr15  : 0x7de00028      2111832104
        gr16  : 0xfffffffff26d6b00      -227710208
        gr17  : 0x00000000      0
        gr18  : 0x00000000      0
        gr19  : 0x00000000      0
        gr20  : 0x7dde01e0      2111701472
        gr21  : 0x081a0870      135923824
        gr22  : 0x081a0878      135923832
        gr23  : 0x081a2038      135929912
        gr24  : 0x7dde0100      2111701248
        gr25  : 0x7dde0100      2111701248
        gr26  : 0x8000000000000000      -9223372036854775808
        gr27  : 0x6cf24918      1827817752
        gr28  : 0x0000000c      12
        gr29  : 0x00000001      1
        gr30  : 0x00000000      0
        gr31  : 0x00000000      0
        gr32  : 0x00000001      1
        gr33  : 0xc00000000000050d      -4611686018427386611
        gr34  : 0xfffffffff26d6bf0      -227709968
        gr35  : 0x6cec84b0      1827439792
        gr36  : 0x081a0800      135923712
        gr37  : 0x8330fcc00000000       590833344963411968
        gr38  : 0x081a08b4      135923892
        gr39  : 0x0c6221a8      207757736
        gr40  : 0x64099e10      1678351888
        gr41  : 0x7eec9bb0      2129435568
        gr42  : 0x08325fa0      137519008
        gr43  : 0x08325fa0      137519008
        fr1   : (0x0ffff,0x8000000000000000)    1

Stack: [809e000,81a1400],  sp=81a0540,  free space=%pk
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C  [(DLL zcrtldll)+0x0]  printf + 0xF0 (DLL zcrtldll)+0x0

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
j  HelloJNI.sayHello()V+0
j  HelloJNI.main([Ljava/lang/String;)V+7
v  ~StubRoutines::call_stub

---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  106de800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=12, stack(10a69000,10aa8800)]
  106da200 JavaThread "CompilerThread1" daemon [_thread_blocked, id=10, stack(10965000,109e4800)]
  1059b600 JavaThread "CompilerThread0" daemon [_thread_blocked, id=9, stack(10861800,108e1000)]
  106d4800 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=8, stack(107e0000,1081f800)]
  106b4000 JavaThread "Finalizer" daemon [_thread_blocked, id=7, stack(1075e000,1079d800)]
  1062c400 JavaThread "Reference Handler" daemon [_thread_blocked, id=6, stack(1062f800,1066f000)]
=>8330800 JavaThread "main" [_thread_in_native, id=4, stack(809e000,81a1400)]

Other Threads:
  105a6800 VMThread [stack: 105a9000,105e8800] [id=5]
  106c2e00 WatcherThread [stack: 803c800,804c000] [id=11]

VM state: not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 def new generation   total 3712K, used 228K [8450000, 8850000, 99a0000)
  eden space 3328K,   6% used [8450000, 8489150, 8790000)
  from space 384K,   0% used [8790000, 8790000, 87f0000)
  to   space 384K,   0% used [87f0000, 87f0000, 8850000)
 tenured generation   total 8192K, used 0K [99a0000, a1a0000, c450000)
   the space 8192K,   0% used [99a0000, 99a0000, 99a0100, a1a0000)
 compacting perm gen  total 65536K, used 1865K [c450000, 10450000, 10450000)
   the space 65536K,   2% used [c450000, c6225a0, c622600, 10450000)
No shared spaces configured.


VM Arguments:
java_command: HelloJNI
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=/usr/tandem/java
PATH=/bin:/bin/unsupported:/usr/bin:/usr/ucb:/usr/tandem/java/bin:/usr/tandem/javaexth10/bin:/usr/tandem/sqlmx/bin:/usr/tandem/java/jre/bin:/usr/tandem/jdbcMx/current/bin:/usr/oracle/ggs:/usr/tandem/nssoap/t0865h01_AAX/tools:.:
SHELL=/bin/sh


---------------  S Y S T E M  ---------------

OS:uname:NONSTOP_KERNEL dnb1 J06 19 NSE-W

CPU:total 1

Memory: 4k page, physical 0k

vm_info: Java HotSpot(TM) Server VM (16.3-b01-svcnedccadmin:2011apr20-08:12) for nsk oss-ia64 JRE (1.6.0), built on Apr 20 2011 09:18:56 by "svcnedccadmin" with c89

time: Mon May  9 18:51:12 2016
elapsed time: 1 seconds
4

1 回答 1

0

我不知道什么是串联：ecobol，我的 gnucobol 示例有效：

调用COBOL.java：

class CallingCOBOL {
    private native void adaptor(String from_java);
    public static void main(String[] args) {
        new CallingCOBOL().adaptor("Hello world!");
    }
    static {
        System.loadLibrary("adaptor");
    }
}

适配器.c：

#include "dlfcn.h"
#include "jni.h"
#include "libcob.h"
#include "adaptor.h"
#include "stdio.h"
JNIEXPORT void JNICALL Java_CallingCOBOL_adaptor(JNIEnv * env, jobject obj, jstring string_from_java) {
    cob_init(0, NULL);
    void * sub_cob;
    sub_cob = dlopen("./libsub-cob.so", RTLD_NOW);
    if (!sub_cob) {
        puts("error no lib found");
        return;
    }
    puts("lib loaded");
    void(*proc_cob)(char*) = (void(*)(char*))dlsym(sub_cob, "proc__cob");
    if (proc_cob) {
        printf("proc addr is %p\n", proc_cob);
    } else {
        puts("proc addr is null");
    }
    const char *temp = (*env)->GetStringUTFChars(env, string_from_java, 0);
    puts("took string from java environment");
    proc_cob(temp);
    puts("cobol proc run ok");
    (*env)->ReleaseStringUTFChars(env, string_from_java, 0);
    dlclose(sub_cob);
    return;
}

子cob.cbl：

identification division.
program-id. sub-cob.
environment division.
configuration section.
data division.
working-storage section.
01 temp-string pic x(20) based.
01 pchar usage pointer.
01 my-string pic x(20).
linkage section.
01 string-from-java pic x(20).
procedure division.
sub-cob section.
goback.
entry "proc-cob" using by reference string-from-java.
display "entry proc-cob".
set pchar to address of string-from-java.
display "pchar set".
set address of temp-string to pchar.
display "temp-string set"
string temp-string delimited by x"00" into my-string.
display "my-string set".
display my-string.
goback.

生成文件：

default:
        javac CallingCOBOL.java;
        javah CallingCOBOL;
        mv CallingCOBOL.h adaptor.h;
        gcc -shared -fPIC adaptor.c -I/usr/java/jdk1.8.0_92/include/linux -I/usr/java/jdk1.8.0_92/include -lcob -olibadaptor.so;
        cobc sub-cob.cbl -free -olibsub-cob.so;
clean:
        rm CallingCOBOL.class;
        rm adaptor.h;
        rm libadaptor.so;
        rm libsub-cob.so;
于 2017-11-10T14:21:18.313 回答