50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
//===-- trampoline_setup_test.c - Test __trampoline_setup -----------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file 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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#include <stdio.h>
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#include <string.h>
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#include <stdint.h>
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#include <sys/mman.h>
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//
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// Tests nested functions
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// The ppc compiler generates a call to __trampoline_setup
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// The i386 and x86_64 compilers generate a call to ___enable_execute_stack
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//
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typedef int (*nested_func_t)(int x);
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nested_func_t proc;
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int main()
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{
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// some locals
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int c = 10;
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int d = 7;
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// define a nested function
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int bar(int x) { return x*5 + c*d; };
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// assign global to point to nested function
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// (really points to trampoline)
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proc = bar;
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// invoke nested function
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c = 4;
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if ( (*proc)(3) != 43 )
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return 1;
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d = 5;
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if ( (*proc)(4) != 40 )
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return 1;
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// success
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return 0;
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}
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