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/*
These utility routines are used various
places in the GHC library.
*/
/* For GHC 4.08, we are relying on the fact that RtsFlags has
* compatible layout with the current version, because we're
* #including the current version of RtsFlags.h below. 4.08 didn't
* ship with its own RtsFlags.h, unfortunately. For later GHC
* versions, we #include the correct RtsFlags.h.
*/
#if __GLASGOW_HASKELL__ < 502
#include "../includes/Rts.h"
#include "../includes/RtsFlags.h"
#else
#include "Rts.h"
#include "RtsFlags.h"
#endif
#include "HsFFI.h"
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
/*
Calling 'strlen' and 'memcpy' directly gives problems with GCC's inliner,
and causes gcc to require too many registers on x84
*/
HsInt
ghc_strlen( HsAddr a )
{
return (strlen((char *)a));
}
HsInt
ghc_memcmp( HsAddr a1, HsAddr a2, HsInt len )
{
return (memcmp((char *)a1, a2, len));
}
HsInt
ghc_memcmp_off( HsAddr a1, HsInt i, HsAddr a2, HsInt len )
{
return (memcmp((char *)a1 + i, a2, len));
}
void
enableTimingStats( void ) /* called from the driver */
{
#if __GLASGOW_HASKELL__ >= 411
RtsFlags.GcFlags.giveStats = ONELINE_GC_STATS;
#endif
/* ignored when bootstrapping with an older GHC */
}
void
setHeapSize( HsInt size )
{
RtsFlags.GcFlags.heapSizeSuggestion = size / BLOCK_SIZE;
if (RtsFlags.GcFlags.maxHeapSize != 0 &&
RtsFlags.GcFlags.heapSizeSuggestion > RtsFlags.GcFlags.maxHeapSize) {
RtsFlags.GcFlags.maxHeapSize = RtsFlags.GcFlags.heapSizeSuggestion;
}
}
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