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From: "sgk at troutmask dot apl.washington.edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/98201] CSQRT function gives bad resuts at runtime
Date: Wed, 09 Dec 2020 15:37:54 +0000 [thread overview]
Message-ID: <bug-98201-4-kiu9I9LQ5P@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-98201-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98201
--- Comment #16 from Steve Kargl <sgk at troutmask dot apl.washington.edu> ---
On Wed, Dec 09, 2020 at 01:24:20PM +0000, dpozar at ecs dot umass.edu wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98201
>
> --- Comment #15 from dpozar at ecs dot umass.edu ---
> attached is the output file from
>
> c:\MinGW>objdump -t c:\mingw\programs\testcsqrt.exe >cmdout.txt
>
> don't see any reference to libraries, though.
>
Is testcsqrt.exe compiled with the -static option? cmdout.txt
shows
[152](sec 1)(fl 0x00)(ty 20)(scl 2) (nx 1) 0x00001210 _csqrtf
AUX tagndx 0 ttlsiz 0x0 lnnos 0 next 0
On my FreeBSD system and a static binary, I see
% gfcx -o z -static a.f90
% objdump -t z | grep csqrt
00000000 l df *ABS* 00000000 s_csqrtf.c
08078a90 g F .text 0000021d csqrtf
On my FreeBSD system and a dynamic binary, I see
% gfcx -o z a.f90
% objdump -t z | grep csqrt
00000000 F *UND* 00000000 csqrtf@@FBSD_1.1
This info is sufficient to tell me that csqrtf lives in FreeBSD's libm.
objdump has several options that may help determine where
csqrtf() resides. I don't know MingW (or windows 10) to
be of any additional help.
next prev parent reply other threads:[~2020-12-09 15:37 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-08 14:44 [Bug fortran/98201] New: " pozar at ecs dot umass.edu
2020-12-08 15:34 ` [Bug fortran/98201] " tkoenig at gcc dot gnu.org
2020-12-08 15:35 ` dominiq at lps dot ens.fr
2020-12-08 15:47 ` dpozar at ecs dot umass.edu
2020-12-08 15:54 ` dpozar at ecs dot umass.edu
2020-12-08 15:55 ` tkoenig at gcc dot gnu.org
2020-12-08 16:27 ` dpozar at ecs dot umass.edu
2020-12-08 17:36 ` kargl at gcc dot gnu.org
2020-12-08 18:19 ` tkoenig at gcc dot gnu.org
2020-12-08 19:13 ` dpozar at ecs dot umass.edu
2020-12-08 19:27 ` tkoenig at gcc dot gnu.org
2020-12-08 20:46 ` dpozar at ecs dot umass.edu
2020-12-08 22:06 ` kargl at gcc dot gnu.org
2020-12-09 0:28 ` dpozar at ecs dot umass.edu
2020-12-09 4:38 ` sgk at troutmask dot apl.washington.edu
2020-12-09 13:24 ` dpozar at ecs dot umass.edu
2020-12-09 15:37 ` sgk at troutmask dot apl.washington.edu [this message]
2020-12-09 16:04 ` dpozar at ecs dot umass.edu
2021-03-28 12:38 ` dominiq at lps dot ens.fr
2021-03-28 13:05 ` dpozar at ecs dot umass.edu
2021-03-28 13:16 ` dominiq at lps dot ens.fr
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