Check .lib is complete
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From: Louis Lavery on 1 Nov 2009 23:53 Hello, Is there a simple way to check that a C++ lib is complete, that is that it does not have any external dependencies? Thanks, Louis. -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: paperab on 2 Nov 2009 13:57 On Nov 2, 4:53 pm, Louis Lavery <Lo...(a)LaverREMOVE.demon.co.uk> wrote: > Hello, > > Is there a simple way to check that a C++ lib is complete, > that is that it does not have any external dependencies? { edits: quoted sig and banner removed. please don't quote extraneous material such as signatures or the banner (which is added to every article). -mod } Hi, A lib is something (I guess you mean a static library: the 'lib' is vague) created by the linker... it's no more C++, may use some other libraries or not (and again this definition is not precise at 100% because can be linked statically with some of them). Replying to your post in Windows you can use dumpbin /dependencies if I remember well. In Linux there is another command: check the manual. But... if the lib is only a wrapper to a dynamic loaded library you are again in trouble. -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: Jorgen Grahn on 7 Nov 2009 22:50 On Tue, 2009-11-03, paperab wrote: > On Nov 2, 4:53 pm, Louis Lavery <Lo...(a)LaverREMOVE.demon.co.uk> wrote: >> Hello, >> >> Is there a simple way to check that a C++ lib is complete, >> that is that it does not have any external dependencies? .... > A lib is something (I guess you mean a static library: the 'lib' is > vague) created by the linker... it's no more C++, may use some other > libraries or not (and again this definition is not precise at 100% > because can be linked statically with some of them). > > Replying to your post in Windows you can use dumpbin /dependencies if > I remember well. In Linux there is another command: check the manual. You probably mean something like this (which by the way is likely to work in various Unixes): % nm -C libprefer.a | grep -iw U Note that it's not enough; if the library contains foo.o and bar.o you get to see foo.o's unresolved references to symbols in bar.o, and so on. A static library (in the usual sense) doesn't have its internal dependencies resolved. By the way, I suspect this is one of those cases where the original poster could get a better answer if he explained what he wanted to accomplish. /Jorgen -- // Jorgen Grahn <grahn@ Oo o. . . \X/ snipabacken.se> O o . [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ]
From: AnonMail2005 on 8 Nov 2009 03:22
On Nov 2, 11:53 am, Louis Lavery <Lo...(a)LaverREMOVE.demon.co.uk> wrote: > Hello, > > Is there a simple way to check that a C++ lib is complete, > that is that it does not have any external dependencies? > google dependency walker. It's a free download. That will go a long way toward telling you. But even that will sometimes give an external dependency that is not needed. HTH -- [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] |