@I [HLS-10] Checking synthesizability ...
Global is external, but doesn't have external or dllimport or weak linkage!
What can be done to resolve this?
An example of the code used is below:
void temp(ap_int<8> inout[2*2*100],
bool sel)
{
ap_int<8> buff[2*100];
int i, j;
if( sel == 0)
{
memcpy(&buff[0], &inout[0], sizeof(ap_int<8>) * 100);
memcpy(&buff[100], &inout[100], sizeof(ap_int<8>) * 100);
}
else
{
memcpy(&buff[0], &inout[200], sizeof(ap_int<8>) * 100);
memcpy(&buff[100], &inout[300], sizeof(ap_int<8>) * 100);
}
for(i = 0; i < 2; i++)
{
for(j = 0; j < 100; j++)
{
buff[i*100+j] += 5;
}
}
if( sel == 0)
{
memcpy(&inout[200], &buff[0], sizeof(ap_int<8>) * 100);
memcpy(&inout[300], &buff[100], sizeof(ap_int<8>) * 100);
}
else
{
memcpy(&inout[0], &buff[0], sizeof(ap_int<8>) * 100);
memcpy(&inout[100], &buff[100], sizeof(ap_int<8>) * 100);
}
}
void top(ap_int<8> inout[2*2*100],
bool sel)
{
ap_int<8> *ptrInOut = inout;
temp(inout, sel);
}
@I [HLS-10] Validating synthesis directives ...
@I [HLS-10] Checking synthesizability ...
Global is external, but doesn't have external or dllimport or weak linkage!
void ()* @temp20
invalid linkage type for function declaration
void ()* @temp20
Broken module found, compilation aborted!
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
In 2012.4 , The function "top" calls the function "temp" which performs memory operations on the array provided as argument.
The error disappears if temp is set as the top module or if we avoid calling the function "temp" inside "top".
Resolution: This issue has been fixed in 2013.1
Workaround in 2012.4:
| AR# 54098 | |
|---|---|
| Date | 07/10/2014 |
| Status | Active |
| Type | Known Issues |
| Tools | |