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Re: AW: [avr-gcc-list] reentrant interrupt service routine
From: |
Mark Litwack |
Subject: |
Re: AW: [avr-gcc-list] reentrant interrupt service routine |
Date: |
Wed, 2 Apr 2008 18:19:51 -0400 |
User-agent: |
KMail/1.9.9 |
So this begs the question... What *isn't* re-entrant?
The avr-libc docs mention:
strtok() re-entrant version: strtok_r()
rand() re-entrant version: rand_r()
random() re-entrant version: random_r()
eeprom_*() uses IO registers
strtod() uses errno
strtol() uses errno
strtoul() uses errno
Is there anything else lurking that wouldn't be re-entrant
using avr-libc 1.6.1 and gcc >=4.2?
Thanks,
-mark
On Wednesday 02 April 2008 05:40:22 pm Dmitry K. wrote:
> On Wednesday 02 April 2008 15:33, Pink Boy wrote:
> [...]
>
> > And for a number for compilers I've dealt with, floating point
> > operations were not reentrant safe and in one case long division
> > wasn't safe either.
>
> Avr-gcc's division, multiplication are reentrant.
> Avr-libc's float point operations are reentrant.
> Avr-libc 1.6 math functions are reentrant: the errno
> variable is not changed (modern C standart permits this).
>
> Regards,
> Dmitry.
>
>
>
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- [avr-gcc-list] reentrant interrupt service routine, Sven Schlender, 2008/04/01
- RE: [avr-gcc-list] reentrant interrupt service routine, Weddington, Eric, 2008/04/01
- Re: [avr-gcc-list] reentrant interrupt service routine, Jan Menzel, 2008/04/01
- AW: [avr-gcc-list] reentrant interrupt service routine, Sven Schlender, 2008/04/01
- Re: AW: [avr-gcc-list] reentrant interrupt service routine, Pink Boy, 2008/04/02
- Re: AW: [avr-gcc-list] reentrant interrupt service routine, Dmitry K., 2008/04/02
- Re: AW: [avr-gcc-list] reentrant interrupt service routine,
Mark Litwack <=
- Re: AW: [avr-gcc-list] reentrant interrupt service routine, Mark Litwack, 2008/04/07
- RE: AW: [avr-gcc-list] reentrant interrupt service routine, Weddington, Eric, 2008/04/07
- Re: [avr-gcc-list] reentrant interrupt service routine, hutchinsonandy, 2008/04/07
- Re: [avr-gcc-list] reentrant interrupt service routine, Bernard Fouché, 2008/04/07
- RE: [avr-gcc-list] reentrant interrupt service routine, Weddington, Eric, 2008/04/07
- Re: AW: [avr-gcc-list] reentrant interrupt service routine, Mark Litwack, 2008/04/07
- RE: AW: [avr-gcc-list] reentrant interrupt service routine, Weddington, Eric, 2008/04/07
Re: [avr-gcc-list] reentrant interrupt service routine, Joerg Wunsch, 2008/04/02
Re: [avr-gcc-list] reentrant interrupt service routine, Pink Boy, 2008/04/01