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).
62 lines
2.0 KiB
C
62 lines
2.0 KiB
C
// RUN: %clang_cc1 -x c -emit-llvm -o - -triple x86_64-apple-darwin10 %s \
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// RUN: -w -fsanitize=signed-integer-overflow,unsigned-integer-overflow,integer-divide-by-zero,float-divide-by-zero \
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// RUN: | FileCheck %s
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// CHECK-LABEL: define{{.*}} void @foo
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// CHECK-NOT: !nosanitize
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void foo(const int *p) {
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// __builtin_prefetch expects its optional arguments to be constant integers.
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// Check that ubsan does not instrument any safe arithmetic performed in
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// operands to __builtin_prefetch. (A clang frontend check should reject
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// unsafe arithmetic in these operands.)
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__builtin_prefetch(p, 0 + 1, 0 + 3);
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__builtin_prefetch(p, 1 - 0, 3 - 0);
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__builtin_prefetch(p, 1 * 1, 1 * 3);
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__builtin_prefetch(p, 1 / 1, 3 / 1);
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__builtin_prefetch(p, 3 % 2, 3 % 1);
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__builtin_prefetch(p, 0U + 1U, 0U + 3U);
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__builtin_prefetch(p, 1U - 0U, 3U - 0U);
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__builtin_prefetch(p, 1U * 1U, 1U * 3U);
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__builtin_prefetch(p, 1U / 1U, 3U / 1U);
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__builtin_prefetch(p, 3U % 2U, 3U % 1U);
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}
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// CHECK-LABEL: define{{.*}} void @ub_constant_arithmetic
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void ub_constant_arithmetic(void) {
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// Check that we still instrument unsafe arithmetic, even if it is known to
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// be unsafe at compile time.
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int INT_MIN = 0xffffffff;
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int INT_MAX = 0x7fffffff;
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// CHECK: call void @__ubsan_handle_add_overflow
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// CHECK: call void @__ubsan_handle_add_overflow
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INT_MAX + 1;
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INT_MAX + -1;
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// CHECK: call void @__ubsan_handle_negate_overflow
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// CHECK: call void @__ubsan_handle_sub_overflow
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-INT_MIN;
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-INT_MAX - 2;
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// CHECK: call void @__ubsan_handle_mul_overflow
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// CHECK: call void @__ubsan_handle_mul_overflow
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INT_MAX * INT_MAX;
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INT_MIN * INT_MIN;
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// CHECK: call void @__ubsan_handle_divrem_overflow
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// CHECK: call void @__ubsan_handle_divrem_overflow
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1 / 0;
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INT_MIN / -1;
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// CHECK: call void @__ubsan_handle_divrem_overflow
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// CHECK: call void @__ubsan_handle_divrem_overflow
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1 % 0;
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INT_MIN % -1;
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// CHECK: call void @__ubsan_handle_divrem_overflow
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1.0 / 0.0;
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}
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