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).
54 lines
2.4 KiB
C++
54 lines
2.4 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fsanitize=cfi-mfcall -o - %s -fvisibility=hidden | FileCheck %s
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#define CFI_UNCHECKED_CALLEE __attribute__((cfi_unchecked_callee))
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class A {};
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// CHECK-LABEL: _Z14MemberFuncCallP1AMS_FvvE
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void MemberFuncCall(A *s, void (A::*p)()) {
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// CHECK: memptr.virtual:
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// CHECK-NEXT: [[VTABLE:%.*]] = load ptr, ptr {{.*}}, align 8
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// CHECK-NEXT: [[OFFSET:%.*]] = sub i64 %memptr.ptr, 1
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// CHECK-NEXT: [[FUNC:%.*]] = getelementptr i8, ptr [[VTABLE]], i64 [[OFFSET]]
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// CHECK-NEXT: [[VALID:%.*]] = call i1 @llvm.type.test(ptr [[FUNC]], metadata !"_ZTSM1AFvvE.virtual")
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// CHECK-NEXT: [[FUNC:%.*]] = getelementptr i8, ptr [[VTABLE]], i64 [[OFFSET]]
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// CHECK-NEXT: %memptr.virtualfn = load ptr, ptr [[FUNC]], align 8
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// CHECK-NEXT: {{.*}}= call i1 @llvm.type.test(ptr [[VTABLE]], metadata !"all-vtables")
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// CHECK-NEXT: br i1 [[VALID]], label %[[CONT:.*]], label %handler.cfi_check_fail{{.*}}
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// CHECK: [[CONT]]:
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// CHECK-NEXT: br label %memptr.end
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// CHECK: memptr.nonvirtual:
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// CHECK-NEXT: %memptr.nonvirtualfn = inttoptr i64 %memptr.ptr to ptr
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// CHECK-NEXT: [[VALID:%.*]] = call i1 @llvm.type.test(ptr %memptr.nonvirtualfn, metadata !"_ZTSM1AFvvE")
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// CHECK-NEXT: [[VALID2:%.*]] = or i1 false, [[VALID]]
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// CHECK-NEXT: br i1 [[VALID2]], label %[[CONT2:.*]], label %handler.cfi_check_fail{{.*}}
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// CHECK: [[CONT2]]:
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// CHECK-NEXT: br label %memptr.end
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// CHECK: memptr.end:
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// CHECK-NEXT: {{.*}} = phi ptr [ %memptr.virtualfn, %[[CONT]] ], [ %memptr.nonvirtualfn, %[[CONT2]] ]
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(s->*p)();
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}
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// CHECK-LABEL: _Z19MemberFuncCallNoCFIP1AMS_FvvE
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// CHECK-NOT: llvm.type.test
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void MemberFuncCallNoCFI(A *s, void (CFI_UNCHECKED_CALLEE A::*p)()) {
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// CHECK: memptr.virtual:
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// CHECK-NEXT: [[VTABLE:%.*]] = load ptr, ptr {{.*}}, align 8
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// CHECK-NEXT: [[OFFSET:%.*]] = sub i64 %memptr.ptr, 1
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// CHECK-NEXT: [[FUNC:%.*]] = getelementptr i8, ptr [[VTABLE]], i64 [[OFFSET]]
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// CHECK-NEXT: %memptr.virtualfn = load ptr, ptr [[FUNC]], align 8
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// CHECK-NEXT: br label %memptr.end
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// CHECK: memptr.nonvirtual:
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// CHECK-NEXT: %memptr.nonvirtualfn = inttoptr i64 %memptr.ptr to ptr
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// CHECK-NEXT: br label %memptr.end
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// CHECK: memptr.end:
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// CHECK-NEXT: {{.*}} = phi ptr [ %memptr.virtualfn, %memptr.virtual ], [ %memptr.nonvirtualfn, %memptr.nonvirtual ]
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(s->*p)();
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}
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