Files
RedBear-OS/local/recipes/dev/libclc/source/compiler-rt/test/dfsan/struct.c
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
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).
2026-08-01 05:13:02 +03:00

89 lines
2.0 KiB
C

// RUN: %clang_dfsan %s -O1 -o %t && %run %t
// RUN: %clang_dfsan %s -O0 -DO0 -o %t && %run %t
#include <assert.h>
#include <sanitizer/dfsan_interface.h>
typedef struct Pair {
int i;
char *ptr;
} Pair;
__attribute__((noinline))
Pair make_pair(int i, char *ptr) {
Pair pair;
pair.i = i;
pair.ptr = ptr;
return pair;
}
__attribute__((noinline))
Pair copy_pair1(const Pair *pair0) {
Pair pair;
pair.i = pair0->i;
pair.ptr = pair0->ptr;
return pair;
}
__attribute__((noinline))
Pair copy_pair2(const Pair pair0) {
Pair pair;
pair.i = pair0.i;
pair.ptr = pair0.ptr;
return pair;
}
int main(void) {
int i = 1;
char *ptr = NULL;
dfsan_label i_label = 1;
dfsan_label ptr_label = 2;
dfsan_set_label(i_label, &i, sizeof(i));
dfsan_set_label(ptr_label, &ptr, sizeof(ptr));
Pair pair1 = make_pair(i, ptr);
int i1 = pair1.i;
char *ptr1 = pair1.ptr;
dfsan_label i1_label = dfsan_read_label(&i1, sizeof(i1));
dfsan_label ptr1_label = dfsan_read_label(&ptr1, sizeof(ptr1));
#if defined(O0)
assert(i1_label == (i_label | ptr_label));
assert(ptr1_label == (i_label | ptr_label));
#else
assert(i1_label == i_label);
assert(ptr1_label == ptr_label);
#endif
Pair pair2 = copy_pair1(&pair1);
int i2 = pair2.i;
char *ptr2 = pair2.ptr;
dfsan_label i2_label = dfsan_read_label(&i2, sizeof(i2));
dfsan_label ptr2_label = dfsan_read_label(&ptr2, sizeof(ptr2));
#if defined(O0)
assert(i2_label == (i_label | ptr_label));
assert(ptr2_label == (i_label | ptr_label));
#else
assert(i2_label == i_label);
assert(ptr2_label == ptr_label);
#endif
Pair pair3 = copy_pair2(pair1);
int i3 = pair3.i;
char *ptr3 = pair3.ptr;
dfsan_label i3_label = dfsan_read_label(&i3, sizeof(i3));
dfsan_label ptr3_label = dfsan_read_label(&ptr3, sizeof(ptr3));
#if defined(O0)
assert(i3_label == (i_label | ptr_label));
assert(ptr3_label == (i_label | ptr_label));
#else
assert(i3_label == i_label);
assert(ptr3_label == ptr_label);
#endif
return 0;
}