extern inline

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2 total messages Started by sinbad Mon, 22 Jun 2009 19:31

#3432

Author: sinbad
Date: Mon, 22 Jun 2009 19:31

14 lines
1645 bytes

hi,

i have a static library "s.a" which will be linked with binary object
of a.c;
"s.a" has one extern iline definiton fun(), when i tried to compile
both s.a and a.c
with -finstrument-functions option, while linking i am getting
undefined refrerence
to function fun(), if i remove the -finstrument-functions option
everything goes well.
does "extern inline" and gcc's -finstrument-functions doesn't go well
together.

thanks

Re: extern inline

#3433

Author: Ben Bacarisse
Date: Mon, 22 Jun 2009 22:54

29 lines
2142 bytes

sinbad <sinbad.sinbad@gmail.com> writes:

> i have a static library "s.a" which will be linked with binary object
> of a.c;
> "s.a" has one extern iline definiton fun(), when i tried to compile
> both s.a and a.c
> with -finstrument-functions option, while linking i am getting
> undefined refrerence
> to function fun(), if i remove the -finstrument-functions option
> everything goes well.
> does "extern inline" and gcc's -finstrument-functions doesn't go well
> together.

The gcc manual says:

    "This instrumentation is also done for functions expanded inline
    in other functions.  The profiling calls will indicate where,
    conceptually, the inline function is entered and exited.  This
    means that addressable versions of such functions must be
    available."

Do you have an addressable version of fun in s.a?  I would guess you
don't.  There will be interactions with other gcc flags the affect
inlining like -gnu89-inline and -std=c99.  If making an addressable
version copy is proving difficult, post the full compile command
line.

-- 
Ben.

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