minix/lib/libsys/sys_mcontext.c

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#include "syslib.h"
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int sys_getmcontext(proc, mcp)
endpoint_t proc; /* process retrieving context */
vir_bytes mcp; /* where to store context */
{
/* A process wants to store its context in mcp. */
message m;
int r;
m.m_lsys_krn_sys_getmcontext.endpt = proc;
m.m_lsys_krn_sys_getmcontext.ctx_ptr = mcp;
r = _kernel_call(SYS_GETMCONTEXT, &m);
return r;
}
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int sys_setmcontext(proc, mcp)
endpoint_t proc; /* process setting context */
vir_bytes mcp; /* where to get context from */
{
/* A process wants to restore context stored in ucp. */
message m;
int r;
m.m_lsys_krn_sys_setmcontext.endpt = proc;
m.m_lsys_krn_sys_setmcontext.ctx_ptr = mcp;
r = _kernel_call(SYS_SETMCONTEXT, &m);
return r;
}