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peter
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 Posted: Wed Dec 03, 2003 4:29 pm Post subject: woes of .dll compiling.... |
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i have 2 questions:
First, why is my makefile suddenly not generating a batch.lib?
Here is is:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT) $(BATCH) import32 cw32
batch.obj: batch.c
bcc32 -IC:BorlandBcc55Include -LC:jdk1.3.1_09lib -LC:sursprogramcbatch -c -RT- -x- batch.c
Question 2:
I compiled my batch.dll using the above code. I then
linked it to a program cdsur030.c, using this makefile:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT) $(BATCH) import32 cw32
batch.obj: batch.c
bcc32 -IC:BorlandBcc55Include -LC:jdk1.3.1_09lib -LC:sursprogramcbatch -c -RT- -x- batch.c
and I get the error that all the functions I call from
batch.dll are unresolved externals. What do i need to do
in order to call functions from batch? am i compiling the
batch.dll correctly? thanks.
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Ed Mulroy [TeamB]
Guest
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| Posted: Thu Dec 04, 2003 9:49 pm Post subject: Re: woes of .dll compiling.... |
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| Quote: | First, why is my makefile suddenly not generating a batch.lib?
Here is is:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT)
$(BATCH) import32 cw32
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I don't know. Try changing your commands following the batch.dll target to
ilink32 /Tpd/ap/Gn/x c0d32 batch,batch,,$(OTSORT) $(BATCH) import32 cw32
implib -c batch.dll batch.lib
| Quote: | Question 2:
I compiled my batch.dll using the above code. I then
linked it to a program cdsur030.c, using this makefile:
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You have a cut and paste error. No targets or commands related to a file
with the base name cdsur030.c are shown.
| Quote: | and I get the error that all the functions I call from
batch.dll are unresolved externals. What do i need to do
in order to call functions from batch? am i compiling the
batch.dll correctly? thanks.
|
From what you show I cannot know the answer to that.
Change to the directory where batch.dll is located and give this command:
tdump -ee batch.dll | more
That will show you the exports. Pay special attention to the exact text,
case and extra characters.
Any exported function from a C file should be identified in the source code
with __declspec(dllexport). Did you do that? The function prototypes for
items imported should be identified with __declspec(dllimport). Did you do
that?
Here is a link to a zip file containing code. The code unpacks into several
directories, each of which has a deliberately simplistic hello world
program. There are console and GUI versions, both static linked and using a
DLL both implicitly linked and explicitly linked and built with batch files
or make files. Among the various versions it contains there should be at
least one that handles a DLL similarly to how you are trying to do things.
http://www.mulroy.org/hello.zip
.. Ed
| Quote: | peter wrote in message
news:3fce1d91$1 (AT) newsgroups (DOT) borland.com...
i have 2 questions:
First, why is my makefile suddenly not generating a batch.lib?
Here is is:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT) $(BATCH) import32
cw32
batch.obj: batch.c
|
bcc32 -IC:BorlandBcc55Include -LC:jdk1.3.1_09lib -LC:sursprogramcba
tch -c -RT- -x- batch.c
| Quote: |
Question 2:
I compiled my batch.dll using the above code. I then
linked it to a program cdsur030.c, using this makefile:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT) $(BATCH) import32
cw32
batch.obj: batch.c
|
bcc32 -IC:BorlandBcc55Include -LC:jdk1.3.1_09lib -LC:sursprogramcba
tch -c -RT- -x- batch.c
| Quote: |
and I get the error that all the functions I call from
batch.dll are unresolved externals. What do i need to do
in order to call functions from batch? am i compiling the
batch.dll correctly? thanks.
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Maurice Barnum
Guest
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| Posted: Fri Dec 05, 2003 11:20 am Post subject: Re: woes of .dll compiling.... |
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| Quote: | First, why is my makefile suddenly not generating a batch.lib?
Here is is:
BATCH=C:jdk1.3.1_09libjvm1.lib
OTSORT=c:sursprogramcbatchotsw321.lib
batch.dll: batch.obj $(BATCH)
ilink32 /Tpd/ap/Gn/x/Gl c0d32 batch,batch,,$(OTSORT)
$(BATCH) import32 cw32
I don't know. Try changing your commands following the batch.dll target to
ilink32 /Tpd/ap/Gn/x c0d32 batch,batch,,$(OTSORT) $(BATCH) import32 cw32
implib -c batch.dll batch.lib
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/Gi will cause ilink32 to create an import lib. the resulting import
lib will generally be smaller than the one created by implib and will
conveniently never accidentally be a "link by ordinal" lib.
/Gl is probably just a typo.
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