[SLE] __setfpucw() - which library?
OK, I give up. Which library is the function __setfpucw in? The man page does not say. Running strings on libc.a shows that its name occurs in that library, and 'ar t libc.a' shows that it contains a module named setfpucw.o. But when I try to call the function, I get an unresolved reference error in the linking stage. BTW, I am trying to change the fpu from 80 bit mode to 64 bit mode. I wrote a wrapper routine to call _setfpucw from a fortran program. I get the same error when I try to explicitly link with libc.a from g77, and when I call the wrapper from a c main function and compile with gcc. Thanks, Ray -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
I did a quick google search on setfpucw and found sys_setfpucw() and setfpucw() but no __setfpucw()... ?? JLK "Raymond C. Maple" wrote:
OK, I give up. Which library is the function __setfpucw in? The man page does not say. Running strings on libc.a shows that its name occurs in that library, and 'ar t libc.a' shows that it contains a module named setfpucw.o. But when I try to call the function, I get an unresolved reference error in the linking stage.
BTW, I am trying to change the fpu from 80 bit mode to 64 bit mode. I wrote a wrapper routine to call _setfpucw from a fortran program. I get the same error when I try to explicitly link with libc.a from g77, and when I call the wrapper from a c main function and compile with gcc.
Thanks, Ray
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"Raymond C. Maple" wrote:
OK, I give up. Which library is the function __setfpucw in? The man page does not say. Running strings on libc.a shows that its name occurs in that library, and 'ar t libc.a' shows that it contains a module named setfpucw.o. But when I try to call the function, I get an unresolved reference error in the linking stage.
The best tool to use to look into libraries is nm, the result is: setfpucw.o: 00000000 T __setfpucw that is libc.a includes setfpucw.o which defines label __setfpucw in the Text segment. However the C compiler adds an _ when it generates a label so it really should be _setfpucw that is called and not __setfpucw as the man page says. /Michael -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
participants (3)
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JerryKreps＠alltel.net -
mapler＠erinet.com -
Michael.Salmon＠uab.ericsson.se