Is it possible to fix Sun Solaris OS 5.8 segmention fault related to int * cast with gcc version 3.3?

Question

Good morning, Is it possible to fix Sun Solaris OS 5.8 segmention fault related to int * cast with gcc version 3.3? The gdb variable values are shown below. The cOrderedList class member variables are shown below. The uname -a and gcc -v outputa are shown below.
This code works fine on Windows Visual Studio C++ 9.0 .Thank you.

[New LWP 1]

Program received signal SIGSEGV, Segmentation fault.
0xff064b04 in cOrderedList::LoadDatabaseRecords(cSQLite*, char const*) (
    this=0x68f10, Database_=0xa4ba8,
    Command_=0xffbed468 "SELECT * FROM LeftPattern")
    at ../Source/cOrderedList.cpp:272
272      *((int*) (Records+RecordCount*RecordSize+FieldOffsets[i]))=Database_->ColumnInt(i);
(gdb) print i
$3 = 3
(gdb) print Records
$4 = 0xa0800 ""
(gdb) print RecordCount
$5 = 0
(gdb) print RecordSize
$6 = 50
(gdb) print FieldOffsets[i]
$7 = 46

class cOrderedList {
private:
    enum eFieldTypes {
        Character,
        Integer
    };

    bool CopyConstructed;

    int RecordCount;
    int FieldCount;
    int RecordSize;

    char *Records;
    int *FieldSizes,*FieldOffsets;
    eFieldTypes *FieldTypes;

    char *CurrentPos;

$ uname -a
SunOS 5.8 Generic_108528-22 sun4u sparc SUNW,Sun-Fire-V210

$ gcc -v
Reading specs from /usr/local/lib/gcc-lib/sparc-sun-solaris2.8/3.3/specs
Configured with: ../configure --disable-nls --with-as=/usr/ccs/bin/as --with-ld=
/usr/ccs/bin/ld
Thread model: posix

bool cOrderedList::LoadDatabaseRecords(cSQLite *Database_,const char *Command_) {
int retVal;
char str[4096];

RetrySQL:
RecordCount=0;
Database_->Prepare(Command_);
while ((retVal=Database_->Step())!=SQLITE_DONE) {
    switch (retVal) {
    case SQLITE_ROW:
        for (int i=0;i<FieldCount;i++) {
            if (FieldTypes[i]==Integer) {
                *((int*)   (Records+RecordCount*RecordSize+FieldOffsets[i]))=Database_->ColumnInt(i);
            } else {
                Database_->ColumnText(i,str);
                LTrim(str);
                RTrim(str);

                #if defined(_DEBUG)
                    if ((int) strlen(str)>=FieldSizes[i])
                        printf("Field not large enough: %s\n",Command_);
                #endif

                strncpy(Records+RecordCount*RecordSize+FieldOffsets[i],str,FieldSizes[i]);
                Records[RecordCount*RecordSize+FieldOffsets[i]+FieldSizes[i]-1]='\x0';
            }
        }
        RecordCount++;
        break;
    case SQLITE_BUSY:
        continue;
    case SQLITE_MISUSE:
        goto RetrySQL;
    default:
        break;
    }
}
return true;
}

Care to show the actual code that causes this? That is, the file cOrderedList.cpp the lines around line 272, maybe the whole LoadDatabaseRecords function if it's not to big. — Some programmer dude
@Joachim Pileborg, This code works fine on RedHat Linux 4.0 with gcc . I will try to post the post the code. Thank yoou. — Frank
@Joachim Pileborg, I just edited the post to include the code for LoadDatabaserecords. Thank you. — Frank
@Joachim Pileborg, This code works fine on RedHat Linux 4 with gcc version 4.1.2 . Thank you. — Frank

Frank Frank · Accepted Answer · 2012-09-19T20:38:59

Good afternoon, the problem turns out out not be a gcc code generation bug or a buffer over-run. The following solution was tested on Solaris a few minutes ago using this code:

     int32_t x = Database->ColumnInt(i);
     memcpy(Records+RecordCount*RecordSize+FieldOffsets[i], &x, sizeof(int32_t));

Thank you for all of your answers and comments.

Is it possible to fix Sun Solaris OS 5.8 segmention fault related to int * cast with gcc version 3.3?

3 Answers