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From: Corinna Vinschen <>
Subject: Re: Placement of signgam in libc instead of libm
Date: Mon, 24 Apr 2023 10:52:02 +0200	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Apr 20 16:20, Joel Sherrill wrote:
> Hi
> While double some checking that all references used by the long double math
> routines Jennifer are resolved when linking, we have found a small oddity.
> The file libc/reent/signgam.c is implemented as follows:
> int *
> __signgam (void)
> {
>   return &_REENT_SIGNGAM(_REENT);
> }
> When TLS is enabled, the macro _REENT_SIGNGAM resolves to
> _tls_gamma_signgam which is in the file libm/math/w_lgamma.c. This creates
> the first reference from libc to libm that I have ever seen and requires
> explicitly linking with -lm -lc when using lgamma().
> Would anyone be opposed to moving this method to libm/math?

Not me, but Jeff added this to libc for a reason, I guess...?


  reply	other threads:[~2023-04-24  8:52 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-20 21:20 Joel Sherrill
2023-04-24  8:52 ` Corinna Vinschen [this message]
2023-04-24 15:16   ` Jeff Johnston

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