derek.holloway
7502bf64a4
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36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
// XFAIL:*
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//// Currently debug info for 'local' behaves, but 'plocal' dereferences to
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//// the incorrect value 0xFF after the call to esc.
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// REQUIRES: lldb
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// UNSUPPORTED: system-windows
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// RUN: %clang -std=gnu11 -O2 -glldb %s -o %t
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// RUN: %dexter --fail-lt 1.0 -w %dexter_lldb_args --binary %t -- %s
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//
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//// Check that a pointer to a variable living on the stack dereferences to the
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//// variable value.
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int glob;
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__attribute__((__noinline__))
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void esc(int* p) {
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glob = *p;
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*p = 0xFF;
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}
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int main() {
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int local = 0xA;
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int *plocal = &local;
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esc(plocal); // DexLabel('s1')
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local = 0xB; //// DSE
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return 0; // DexLabel('s2')
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}
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// DexExpectWatchValue('local', 0xA, on_line=ref('s1'))
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// DexExpectWatchValue('local', 0xB, on_line=ref('s2'))
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// DexExpectWatchValue('*plocal', 0xA, on_line=ref('s1'))
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// DexExpectWatchValue('*plocal', 0xB, on_line=ref('s2'))
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//// Ideally we should be able to observe the dead store to local (0xB) through
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//// plocal here.
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// DexExpectWatchValue('(local == *plocal)', 'true', from_line=ref('s1'), to_line=ref('s2'))
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