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).
67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// RUN: %clang_analyze_cc1 -triple=x86_64-unknown-unknown \
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// RUN: -analyzer-checker debug.ExprInspection,core -Wno-error=invalid-gnu-asm-cast -w %s -verify
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int clang_analyzer_eval(int);
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void clang_analyzer_dump(int);
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void clang_analyzer_dump_ptr(void *);
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int global;
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void testRValueOutput() {
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int origVal = global;
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__asm__("" : "=r"(((int)(global)))); // don't crash on rvalue output operand
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int newVal = global; // Value "after" the invalidation.
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clang_analyzer_eval(origVal == newVal); // expected-warning{{TRUE}} expected-warning{{FALSE}}
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}
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void *MyMemcpy(void *d, const void *s, const int n) {
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asm volatile (
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"cld\n rep movsb\n"
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:: "S" (s), "D" (d), "c" (n) : "memory"
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);
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return d;
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}
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void testInlineAsmMemcpy(void)
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{
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int a, b = 10, c;
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MyMemcpy(&a, &b, sizeof(b));
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c = a; // no-warning
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}
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void testInlineAsmMemcpyArray(void)
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{
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int a[10], b[10] = {}, c;
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MyMemcpy(&a, &b, sizeof(b));
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c = a[8]; // no-warning
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}
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void testInlineAsmMemcpyUninit(void)
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{
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int a[10], b[10] = {}, c;
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MyMemcpy(&a[1], &b[1], sizeof(b) - sizeof(b[1]));
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c = a[0]; // FIXME: should be warning about uninitialized value, but invalidateRegions() also
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// invalidates super region.
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}
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void testInlineAsmMemcpyUninitLoop(const void *src, unsigned long len)
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{
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int a[10], c;
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unsigned long toCopy = sizeof(a) < len ? sizeof(a) : len;
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MyMemcpy(a, src, toCopy);
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// Use index 1, since before use of invalidateRegions in VisitGCCAsmStmt, engine bound unknown SVal only to
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// first element.
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c = a[1]; // no-warning
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}
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void testAsmWithVoidPtrArgument()
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{
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extern void *globalVoidPtr;
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clang_analyzer_dump(*(int *)globalVoidPtr); // expected-warning-re {{reg_${{[0-9]+}}<int Element{SymRegion{reg_${{[0-9]+}}<void * globalVoidPtr>},0 S64b,int}>}}
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clang_analyzer_dump_ptr(globalVoidPtr); // expected-warning-re {{&SymRegion{reg_${{[0-9]+}}<void * globalVoidPtr>}}}
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asm ("" : : "a"(globalVoidPtr)); // no crash
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clang_analyzer_dump(*(int *)globalVoidPtr); // expected-warning {{derived_}}
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clang_analyzer_dump_ptr(globalVoidPtr); // expected-warning-re {{&SymRegion{reg_${{[0-9]+}}<void * globalVoidPtr>}}}
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}
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