vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
// RUN: %clang_analyze_cc1 %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=debug.ExprInspection \
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// RUN: -analyzer-config support-symbolic-integer-casts=true \
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// RUN: -analyzer-config eagerly-assume=false \
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// RUN: -triple x86_64-unknown-linux-gnu \
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// RUN: -verify
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// Test that the SValBuilder is able to look up and use a constraint for an
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// operand of a SymbolCast, when the operand is constrained to a const value.
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void clang_analyzer_eval(bool);
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extern void abort() __attribute__((__noreturn__));
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#define assert(expr) ((expr) ? (void)(0) : abort())
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void test(int x) {
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// Constrain a SymSymExpr to a constant value.
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assert(x * x == 1);
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// It is expected to be able to get the constraint for the operand of the
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// cast.
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clang_analyzer_eval((char)(x * x) == 1); // expected-warning{{TRUE}}
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clang_analyzer_eval((long)(x * x) == 1); // expected-warning{{TRUE}}
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}
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void test1(int x, int y) {
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// Even if two lower bytes of `x` equal to zero, it doesn't mean that
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// the entire `x` is zero. We are not able to know the exact value of x.
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// It can be one of 65536 possible values like
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// [0, 65536, -65536, 131072, -131072, ...]. To avoid huge range sets we
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// still assume `x` in the range [INT_MIN, INT_MAX].
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assert((short)x == 0); // Lower two bytes are set to 0.
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static_assert((short)65536 == 0, "");
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static_assert((short)-65536 == 0, "");
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static_assert((short)131072 == 0, "");
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static_assert((short)-131072 == 0, "");
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clang_analyzer_eval(x == 0); // expected-warning{{UNKNOWN}}
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// These are not truncated to short as zero.
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static_assert((short)1 != 0, "");
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clang_analyzer_eval(x == 1); // expected-warning{{FALSE}}
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static_assert((short)-1 != 0, "");
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clang_analyzer_eval(x == -1); // expected-warning{{FALSE}}
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static_assert((short)65537 != 0, "");
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clang_analyzer_eval(x == 65537); // expected-warning{{FALSE}}
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static_assert((short)-65537 != 0, "");
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clang_analyzer_eval(x == -65537); // expected-warning{{FALSE}}
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static_assert((short)131073 != 0, "");
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clang_analyzer_eval(x == 131073); // expected-warning{{FALSE}}
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static_assert((short)-131073 != 0, "");
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clang_analyzer_eval(x == -131073); // expected-warning{{FALSE}}
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// Check for implicit cast.
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short s = y;
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assert(s == 0);
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clang_analyzer_eval(y == 0); // expected-warning{{UNKNOWN}}
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}
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