* memmov/memset/memcpy without libc
@ 2012-06-14 7:31 Andreas Geißler
2012-06-14 8:31 ` Georg-Johann Lay
0 siblings, 1 reply; 3+ messages in thread
From: Andreas Geißler @ 2012-06-14 7:31 UTC (permalink / raw)
To: gcc-help
Hi,
I'm trying to port gcc for my own target system.
I want to avoid the compilation of libc, therefore i use
-nodefaultlibs for compiling.
But if I want to still use memmov/memset/memcpy where do i have describe them?
A define expand memmov does not seem to be sufficient.
Tanks in advance.
Best regards,
Andreas
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: memmov/memset/memcpy without libc
2012-06-14 7:31 memmov/memset/memcpy without libc Andreas Geißler
@ 2012-06-14 8:31 ` Georg-Johann Lay
2012-06-14 8:50 ` Andreas Geißler
0 siblings, 1 reply; 3+ messages in thread
From: Georg-Johann Lay @ 2012-06-14 8:31 UTC (permalink / raw)
To: Andreas Geißler; +Cc: gcc-help
Andreas Geißler schrieb:
> Hi,
> I'm trying to port gcc for my own target system.
> I want to avoid the compilation of libc, therefore i use
> -nodefaultlibs for compiling.
> But if I want to still use memmov/memset/memcpy where do i have describe them?
> A define expand memmov does not seem to be sufficient.
>
> Tanks in advance.
>
> Best regards,
> Andreas
You could supply implementations in an own library or put them in libgcc.
Usage of memmov depends on MOVE_RATIO, similar for the other mem insn.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: memmov/memset/memcpy without libc
2012-06-14 8:31 ` Georg-Johann Lay
@ 2012-06-14 8:50 ` Andreas Geißler
0 siblings, 0 replies; 3+ messages in thread
From: Andreas Geißler @ 2012-06-14 8:50 UTC (permalink / raw)
To: Georg-Johann Lay; +Cc: gcc-help
> You could supply implementations in an own library or put them in libgcc.
>
> Usage of memmov depends on MOVE_RATIO, similar for the other mem insn.
Thanks for the tip that should solve my problem.
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-06-14 7:31 memmov/memset/memcpy without libc Andreas Geißler
2012-06-14 8:31 ` Georg-Johann Lay
2012-06-14 8:50 ` Andreas Geißler
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