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35976d91af
* stdlib and friends are system headers * 'long long' is the type that consistently turns into the LLVM 'long' type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10241 91177308-0d34-0410-b5e6-96231b3b80d8
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
//===-- stacker_rt.c - Runtime Support For Stacker Compiler -----*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by Reid Spencer and donated to the LLVM research
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// group and is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines a stack dumping function that can be used for debugging.
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// It is called whenever the DUMP built-in word is used in the Stacker source.
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// It has no effect on the stack (other than to print it).
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//
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// The real reason this is here is to test LLVM's ability to link with
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// separately compiled software.
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//
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//===----------------------------------------------------------------------===//
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#include <ctype.h>
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#include <stdio.h>
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#include <stdlib.h>
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extern long long _index_;
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extern int _stack_[];
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extern void _MAIN_();
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void
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_stacker_dump_stack_()
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{
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int i;
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printf("Stack Dump:\n");
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for (i = _index_; i > 0; i-- )
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{
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printf("#%03d: %d\n", i, _stack_[i] );
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}
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}
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int
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main ( int argc, char** argv )
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{
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// Avoid modifying argc
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int a = argc;
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// Make sure we're starting with the right index
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_index_ = 0;
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// Copy the arguments to the stack in reverse order
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// so that they get popped in the order presented
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while ( a > 0 )
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{
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if ( isdigit( (int) argv[--a][0] ) )
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{
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_stack_[_index_++] = atoi( argv[a] );
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}
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else
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{
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_stack_[_index_++] = (int) argv[a];
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}
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}
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// Put the argument count on the stack
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_stack_[_index_] = argc;
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// Invoke the user's main program
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_MAIN_();
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// Return last item on the stack
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if ( _index_ >= 0 )
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return _stack_[_index_];
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return -1;
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}
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