 | | | resolving myodbc crash | resolving myodbc crash 2006-04-01 - By sunil arora
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Hi folks,
This is my first post to this list.
We are trying to port mysql-connector-odbc on SFU environment. SFU is
a unix like environment which is installed as POSIX subsystem on
windows. This subsystem is called Interix. It has GNU's build system.
I was able to build both libmysqlclient_r.a and libmyodbc3.a ( the
static libraries only).
I have compiled libmysqlclient_r.a from mysql-4 (See http://sql-4.ora-code.com).1.15 (package) and
myodbc drivers are from the latest stable source 3.51.12.
Following is the configure command I have used for configuring the
mysql-4 (See http://sql-4.ora-code.com).1.15 for building the libraries.
./configure --prefix=/usr/local/mysql --without-server --with-pic
--with-pthread --enable-thread-safe-client
We are using gnu gcc3.3 for building this library but somehow
configure script says this "ld" doesn't shared library.
Following the configure command I used for building the mysql-connector source
./configure --prefix=/usr/local/myodbc
--with-unixODBC=/usr/local/unixODBC
--with-unixODBC-includes=/usr/local/unixODBC/include
--with-unixODBC-libs=/usr/local/unixODBC/lib
--with-mysql-path=/usr/local/mysql/ --with-gnu-ld=yes
--enable-thread-safe --enable-shared --enable-gui=no
--with-samples=no --enable-test=no
Since its not able to build shared library with this compiler set, I
made shared libraries manually with this command.
gcc -shared -o .libs/libmyodbc3_r.so *.o ../util/*.o
-L/usr/local/mysql/lib/mysql/ -L/usr/local/unixODBC/lib/ -lodbcinst
?lmysqlclient_r -lz -lc -lpthread
I used to unixODBC's isql utility to check the connectivity with a
test dsn ( we are using mysql-4 (See http://sql-4.ora-code.com).1 server) and myodbc's driver's got
invoked and SQLConnect got initiated but very soon it got core dump
with "illegal instruction".
Here are some of the details:
bash-3 (See http://ash-3.ora-code.com).00$ ./isql -v test
Illegal instruction (core dumped)
When I run it through gdb, it list following trace.
Program received signal SIGILL, Illegal instruction.
0x00857da0 in cs_value () at /tmp/cczLMK6t.s:12
12 /tmp/cczLMK6t.s: No such file or directory.
in /tmp/cczLMK6t.s
Current language: auto; currently asm
(gdb) bt
#0 0x00857da0 in cs_value () at /tmp/cczLMK6t.s:12
#1 0x0085c988 in my_xml_parse () at /tmp/cczLMK6t.s:12
#2 0x00857909 in my_parse_charset_xml () at /tmp/cczLMK6t.s:12
#3 0x0084ec49 in init_available_charsets () at /tmp/cczLMK6t.s:12
#4 0x0084e4a1 in get_charset_by_csname () at /tmp/cczLMK6t.s:12
#5 0x0084a6e8 in mysql_real_connect () at /tmp/cczLMK6t.s:12
#6 0x00834ce7 in SQLConnect () at /tmp/cczLMK6t.s:12
#7 0x1000c03e in SQLConnect (connection_handle=0x1474e0,
server_name=0x81fe18 "test", name_length1?, user_name=0x81fce8 "",
name_length2?, authentication=0x81fbb8 "", name_length3?) at
SQLConnect.c:3721
#8 0x00401ce2 in OpenDatabase (phEnv=0x409058, phDbc=0x40905c,
szDSN=0x81fe18 "test", szUID=0x81fce8 "", szPWD=0x81fbb8 "") at
isql.c:262
#9 0x004018a2 in main (argc=3, argv=0x1077c) at isql.c:128
Though, gdb's output is not correct because compiler optimization has
already confused gdb.
Any Idea wht could be going wrong here ?
-sunil
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