minix/lib/syslib/sys_trace.c

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#include "syslib.h"
PUBLIC int sys_trace(req, proc_ep, addr, data_p)
int req;
endpoint_t proc_ep;
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long addr, *data_p;
{
message m;
int r;
m.CTL_ENDPT = proc_ep;
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m.CTL_REQUEST = req;
m.CTL_ADDRESS = addr;
if (data_p) m.CTL_DATA = *data_p;
r = _taskcall(SYSTASK, SYS_TRACE, &m);
if (data_p) *data_p = m.CTL_DATA;
return(r);
}