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).
78 lines
3.3 KiB
C++
78 lines
3.3 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm -fsanitize=cfi-icall -o - %s | FileCheck %s
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#define CFI_UNCHECKED_CALLEE __attribute__((cfi_unchecked_callee))
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void unchecked(void) CFI_UNCHECKED_CALLEE {}
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/// All references to unchecked function with `cfi_unchecked_callee` should have the `cfi_unchecked_callee` wrapper.
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// CHECK: @checked = global ptr no_cfi @_Z9uncheckedv
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void (*checked)(void) = unchecked;
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// CHECK: @unchecked2 = global ptr no_cfi @_Z9uncheckedv
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void (CFI_UNCHECKED_CALLEE *unchecked2)(void) = unchecked;
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// CHECK: @checked2 = global ptr no_cfi @_Z9uncheckedv
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constexpr void (CFI_UNCHECKED_CALLEE *unchecked_constexpr)(void) = unchecked;
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void (*checked2)(void) = unchecked_constexpr;
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/// Note we still reference the `no_cfi` function rather than the jump table entry.
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/// The explicit cast will only silence the warning.
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// CHECK: @checked_explicit_cast = global ptr no_cfi @_Z9uncheckedv
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void (*checked_explicit_cast)(void) = (void (*)(void))unchecked;
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// CHECK: @checked_array = global [3 x ptr] [ptr no_cfi @_Z9uncheckedv, ptr no_cfi @_Z9uncheckedv, ptr no_cfi @_Z9uncheckedv]
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void (*checked_array[])(void) = {
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unchecked,
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(void (*)(void))unchecked,
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reinterpret_cast<void (*)(void)>(unchecked),
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};
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void func_accepting_checked(void (*p)(void)) {}
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// CHECK-LABEL: _Z9InvokeCFIv
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void InvokeCFI() {
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// CHECK: %0 = load ptr, ptr @checked, align 8
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// CHECK: %1 = call i1 @llvm.type.test(ptr %0, metadata !"_ZTSFvvE")
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checked();
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}
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// CHECK-LABEL: _Z11InvokeNoCFIv
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void InvokeNoCFI() {
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// CHECK: %0 = load ptr, ptr @unchecked2, align 8
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// CHECK: call void %0()
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unchecked2();
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}
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struct A {
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void unchecked_method() CFI_UNCHECKED_CALLEE {}
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virtual void unchecked_virtual_method() CFI_UNCHECKED_CALLEE {}
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static void unchecked_static_method() CFI_UNCHECKED_CALLEE {}
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int unchecked_const_method() const CFI_UNCHECKED_CALLEE { return 0; }
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int unchecked_const_method_int_arg(int n) const CFI_UNCHECKED_CALLEE { return 0; }
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};
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void h(void) {
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// CHECK: store ptr no_cfi @_Z9uncheckedv, ptr %unchecked_local
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void (*unchecked_local)(void) = unchecked;
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// CHECK: call void @_Z22func_accepting_checkedPFvvE(ptr noundef no_cfi @_Z9uncheckedv)
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func_accepting_checked(unchecked);
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// CHECK: [[B:%.*]] = load ptr, ptr @checked
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// CHECK-NEXT: call void @_Z22func_accepting_checkedPFvvE(ptr noundef [[B]])
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func_accepting_checked(checked);
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// CHECK: store { i64, i64 } { i64 ptrtoint (ptr no_cfi @_ZN1A16unchecked_methodEv to i64), i64 0 }, ptr %A1
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auto A1 = &A::unchecked_method;
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/// Storing unchecked virtual function pointer stores an offset instead. This is part of the
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/// normal Itanium C++ ABI, but let's make sure we don't change anything.
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// CHECK: store { i64, i64 } { i64 1, i64 0 }, ptr %A2
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auto A2 = &A::unchecked_virtual_method;
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// CHECK: store ptr no_cfi @_ZN1A23unchecked_static_methodEv, ptr %A3
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auto A3 = &A::unchecked_static_method;
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// CHECK: store { i64, i64 } { i64 ptrtoint (ptr no_cfi @_ZNK1A22unchecked_const_methodEv to i64), i64 0 }, ptr %A4
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auto A4 = (int(CFI_UNCHECKED_CALLEE A::*)() const)(&A::unchecked_const_method);
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// CHECK: store { i64, i64 } { i64 ptrtoint (ptr no_cfi @_ZNK1A30unchecked_const_method_int_argEi to i64), i64 0 }, ptr %A5
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auto A5 = (int(CFI_UNCHECKED_CALLEE A::*)(int) const)(&A::unchecked_const_method_int_arg);
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}
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