make_procedure_object.c

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#include <gc/gc.h>
#include <inttypes.h>
#include "BUILD/bitc-runtime.h"


void *
bitc_emit_procedure_object(void *stubP, void *envP)
{
  bitc_Procedure* proc = GC_ALLOC(sizeof(bitc_Procedure));

  /* mflr r0 */
  proc->code[0] = 0x7c0802a6u;
  /* bl .skip */
  proc->code[1] = 0x4800000du;
  /* mflr r2 */
  proc->code[4] = 0x7c4802a6u;
  /* mtlr r0 */
  proc->code[5] = 0x7c0803a6u;
  /* lwz r0, 0(r2) */
  proc->code[6] = 0x80020000u;
  /* mtctr r0 */
  proc->code[7] = 0x7c0903a6u;
  /* lwz r2,4(r2) */
  proc->code[8] = 0x80420004u;
  /* bctr */
  proc->code[9] = 0x4e800420u;

  proc->code[2] = stubP;
  proc->code[3] = envP;

  return proc;

  /* On this architecture, no explicit iCache flush is required as
   * long as a branch appears. Return suffices for a branch, which is why
   * this must not be an inline procedure. */
}

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