* [ARM cortex-m0] sync built-in functions for atomic memory access
@ 2014-07-30 5:59 Mallikarjun Goudar
0 siblings, 0 replies; 3+ messages in thread
From: Mallikarjun Goudar @ 2014-07-30 5:59 UTC (permalink / raw)
To: gcc-help
Hi,
I would like to use sync built-in functions for atomic memory access
fro the target arm cortex-m0.
But i do get error when i use them.
For example:
int main(void)
{
int x = 2;
__sync_add_and_fetch(&x, 1);
return x;
}
I get following error:
undefined reference to `__sync_add_and_fetch_4'
I used following command:
arm-none-eabi-gcc -mcpu=cortex-m0 -mthumb -mfloat-abi=soft -c test.c
Thanks for your help,
Mallikarjuna
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: [ARM cortex-m0] sync built-in functions for atomic memory access
@ 2014-07-30 8:39 Sandeep Kumar Singh
2014-07-31 8:26 ` Mallikarjun Goudar
0 siblings, 1 reply; 3+ messages in thread
From: Sandeep Kumar Singh @ 2014-07-30 8:39 UTC (permalink / raw)
To: mallikarjun.gouda; +Cc: gcc-help
Hi Mallikarjun,
>> arm-none-eabi-gcc -mcpu=cortex-m0 -mthumb -mfloat-abi=soft -c test.c
I built toolchain with gcc-4.9.0 source code and I just ran your test case with your used provided
Command. It is running without any error.
Regards,
Sandeep Kumar Singh
Senior Technical member staff, AESBU - Infotainment & Clusters
KPIT Technologies Limited
Phone: +91-20-66525000 | cell: +91-9730704579
^ permalink raw reply [flat|nested] 3+ messages in thread
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2014-07-30 5:59 [ARM cortex-m0] sync built-in functions for atomic memory access Mallikarjun Goudar
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