derek.holloway
7502bf64a4
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56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
// RUN: %clang_analyze_cc1 -verify %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=apiModeling.Errno \
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// RUN: -analyzer-checker=debug.ErrnoTest \
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// RUN: -analyzer-checker=unix.Errno \
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// RUN: -analyzer-config unix.Errno:AllowErrnoReadOutsideConditionExpressions=false \
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// RUN: -DERRNO_VAR
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// RUN: %clang_analyze_cc1 -verify %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=apiModeling.Errno \
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// RUN: -analyzer-checker=debug.ErrnoTest \
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// RUN: -analyzer-checker=unix.Errno \
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// RUN: -analyzer-config unix.Errno:AllowErrnoReadOutsideConditionExpressions=false \
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// RUN: -DERRNO_FUNC
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#include "Inputs/system-header-simulator.h"
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#ifdef ERRNO_VAR
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#include "Inputs/errno_var.h"
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#endif
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#ifdef ERRNO_FUNC
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#include "Inputs/errno_func.h"
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#endif
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int ErrnoTesterChecker_setErrnoIfError();
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void test_cond() {
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ErrnoTesterChecker_setErrnoIfError();
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int A = errno ? 1 : 2;
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// expected-warning@-1{{An undefined value may be read from 'errno'}}
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}
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void test_errno_store_into_variable() {
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ErrnoTesterChecker_setErrnoIfError();
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int a = errno;
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// expected-warning@-1{{An undefined value may be read from 'errno'}}
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}
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void test_errno_store_into_variable_in_expr() {
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ErrnoTesterChecker_setErrnoIfError();
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int a = 4 + errno;
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// expected-warning@-1{{An undefined value may be read from 'errno'}}
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}
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int test_errno_return() {
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ErrnoTesterChecker_setErrnoIfError();
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return errno;
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// expected-warning@-1{{An undefined value may be read from 'errno'}}
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}
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int test_errno_return_expr() {
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ErrnoTesterChecker_setErrnoIfError();
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return errno > 10;
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// expected-warning@-1{{An undefined value may be read from 'errno'}}
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}
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