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).
50 lines
2.6 KiB
C
50 lines
2.6 KiB
C
// RUN: %clang_analyze_cc1 -analyzer-checker=security.PointerSub -analyzer-output=text -verify %s
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void different_1() {
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int a[3]; // expected-note{{Array at the left-hand side of subtraction}}
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int b[3]; // expected-note{{Array at the right-hand side of subtraction}}
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int d = &a[2] - &b[0]; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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}
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void different_2() {
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int a[3]; // expected-note{{Array at the right-hand side of subtraction}}
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int b[3]; // expected-note{{Array at the left-hand side of subtraction}}
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int *p1 = a + 1;
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int *p2 = b;
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int d = p2 - p1; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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}
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int different_3() {
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struct {
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int array[5];
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} a, b;
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return &a.array[3] - &b.array[2]; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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}
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int different_4() {
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struct {
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int array1[5]; // expected-note{{Array at the left-hand side of subtraction}}
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int array2[5]; // expected-note{{Array at the right-hand side of subtraction}}
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} a;
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return &a.array1[3] - &a.array2[4]; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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}
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void different_5() {
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int d;
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static int x[10][10]; // expected-note2{{Array at the left-hand side of subtraction}}
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int *y1 = &(x[3][5]);
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char *z = ((char *) y1) + 2;
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int *y2 = (int *)(z - 2);
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int *y3 = ((int *)x) + 35; // This is offset for [3][5].
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d = y2 - y1; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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d = y3 - y1; // expected-warning{{Subtraction of two pointers that do not point into the same array is undefined behavior}} \
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// expected-note{{Subtraction of two pointers that do not point into the same array is undefined behavior}}
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d = y3 - y2;
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}
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