Files
RedBear-OS/local/recipes/dev/libclc/source/compiler-rt/test/scudo/valloc.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

66 lines
1.9 KiB
C

// RUN: %clang_scudo %s -o %t
// RUN: %run %t valid 2>&1
// RUN: not %run %t invalid 2>&1 | FileCheck %s
// RUN: %env_scudo_opts=allocator_may_return_null=1 %run %t invalid 2>&1
// UNSUPPORTED: android
// Tests that valloc and pvalloc work as intended.
#include <assert.h>
#include <errno.h>
#include <malloc.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
size_t round_up_to(size_t size, size_t alignment) {
return (size + alignment - 1) & ~(alignment - 1);
}
int main(int argc, char **argv) {
void *p = NULL;
size_t size, page_size;
assert(argc == 2);
page_size = sysconf(_SC_PAGESIZE);
// Check that the page size is a power of two.
assert((page_size & (page_size - 1)) == 0);
if (!strcmp(argv[1], "valid")) {
for (int i = (sizeof(void *) == 4) ? 3 : 4; i < 21; i++) {
size = 1U << i;
p = valloc(size - (2 * sizeof(void *)));
assert(p);
assert(((uintptr_t)p & (page_size - 1)) == 0);
free(p);
p = pvalloc(size - (2 * sizeof(void *)));
assert(p);
assert(((uintptr_t)p & (page_size - 1)) == 0);
assert(malloc_usable_size(p) >= round_up_to(size, page_size));
free(p);
p = valloc(size);
assert(p);
assert(((uintptr_t)p & (page_size - 1)) == 0);
free(p);
p = pvalloc(size);
assert(p);
assert(((uintptr_t)p & (page_size - 1)) == 0);
assert(malloc_usable_size(p) >= round_up_to(size, page_size));
free(p);
}
}
if (!strcmp(argv[1], "invalid")) {
// Size passed to pvalloc overflows when rounded up.
p = pvalloc((size_t)-1);
// CHECK: Scudo ERROR: pvalloc parameters overflow
assert(!p);
assert(errno == ENOMEM);
errno = 0;
p = pvalloc((size_t)-page_size);
assert(!p);
assert(errno == ENOMEM);
}
return 0;
}