On 5/5/07, Ian Eslick <[EMAIL PROTECTED]> wrote:
PS - I've had several people load the current HEAD and run on linux/
sbcl with the same positive result. So far you are the only
failure.
I also don't have any problem with SBCL at all.
I'm running fedora core 6, SBCL 1.0.3 and lispworks 5.0.2.
BTW, I found out that the MOP error only happens with lispworks 5.0.1.
I should have checked lispwork's website first, it turns out that
5.0.2 has been out for a while.
Sorry for the false alarm.
I'll test Lispworks under Linux later and see if I can
reproduce the problem, but it worked fine for me before I released
RC1. Do you have your library path setup correctly in your my-
config.sexp?
I use henrik's install-bdb.sh script to install the latest bdb and it
creates my-config.sexp automatically.
Remember without the -ldb flag, ldd shows that
$ ldd src/db-bdb/libberkeley-db.so
linux-gate.so.1 => (0x009fb000)
libm.so.6 => /lib/libm.so.6 (0x00110000)
libc.so.6 => /lib/libc.so.6 (0x00db5000)
/lib/ld-linux.so.2 (0x0085f000)
(asdf:operate 'asdf:load-op :elephant)
(asdf:operate 'asdf:load-op :ele-bdb)
The elephant.asd loads both
(uffi:load-foreign-library
"/usr/local/BerkeleyDB.4.5/lib/libdb-4.5.so" :module
"/usr/local/BerkeleyDB.4.5/lib/libdb-4.5.so")
and
(uffi:load-foreign-library "src/db-bdb/libberkeley-db.so" :module
"src/db-bdb/libberkeley-db.so")
To verify that libdb is loaded, I type the following in the REPL
(uffi:def-function ("db_strerror" test-db-strerror)
((error :int))
:returning :cstring)
(test-db-strerror 1)
"Operation not permitted"
Now in src/db-bdb/libberkeley-db.c there's a wrapper function
db_strerr which call the above db_strerror.
If I tried this in the REPL
(%db-strerror 1)
lispworks-5-0-0-x86-linux: symbol lookup error:
src/db-bdb/libberkeley-db.so: undefined symbol: db_strerror
So even though both "*.so" are loaded with load-foreign-library,
libberkeley-db.so cannot access functions in libdb-4.5.so
Now with the -ldb flag
$ ldd src/db-bdb/libberkeley-db.so
linux-gate.so.1 => (0x00d71000)
libm.so.6 => /lib/libm.so.6 (0x00d43000)
libdb-4.5.so => /usr/local/BerkeleyDB.4.5/lib/libdb-4.5.so (0x00918000)
libc.so.6 => /lib/libc.so.6 (0x00b43000)
/lib/ld-linux.so.2 (0x0085f000)
libpthread.so.0 => /lib/libpthread.so.0 (0x00f9c000)
By the time libberkeley-db.so is loaded, it should pull in
libdb-4.5.so automatically, and the above test will succeed.
I really don't have much knowledge of how SBCL/lispworks implement
their FFI load-library function, but it seems that for SBCL, merely
using load-foreign-library is enough. Someone might have a clue of
what's going on.
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