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/*===-- stacker_rt.c - Runtime Support For Stacker Compiler -----*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by Reid Spencer and donated to the LLVM research
// group and is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines a stack dumping function that can be used for debugging.
// It is called whenever the DUMP built-in word is used in the Stacker source.
// It has no effect on the stack (other than to print it).
//
// The real reason this is here is to test LLVM's ability to link with
// separately compiled software.
//
//===----------------------------------------------------------------------===*/
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
extern int64_t _index_;
extern int64_t _stack_[];
extern void _MAIN_();
void
_stacker_dump_stack_()
{
int64_t i;
printf("Stack Dump:\n");
for (i = _index_; i > 0; i-- )
{
printf("#%03lld: %lld\n", (long long int) i, (long long int) _stack_[i] );
}
}
int
main ( int argc, char** argv )
{
/* Avoid modifying argc */
int a = argc;
/* Make sure we're starting with the right index */
_index_ = 0;
/* Copy the arguments to the stack in reverse order
* so that they get popped in the order presented
*/
while ( a > 0 )
{
if ( isdigit( (int) argv[--a][0] ) )
{
_stack_[_index_++] = atoll( argv[a] );
}
else
{
_stack_[_index_++] = (int64_t) (intptr_t) argv[a];
}
}
/* Put the argument count on the stack */
_stack_[_index_] = argc;
/* Invoke the user's main program */
_MAIN_();
/* Return last item on the stack */
if ( _index_ >= 0 )
return _stack_[_index_];
return -1;
}
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