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

58 lines
3.2 KiB
C

// RUN: %clang_scudo %s -o %t
// RUN: %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-nolimit
// RUN: %env_scudo_opts="soft_rss_limit_mb=128" %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-nolimit
// RUN: %env_scudo_opts="hard_rss_limit_mb=128" %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-nolimit
// RUN: %env_scudo_opts="soft_rss_limit_mb=32:allocator_may_return_null=0" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-softlimit
// RUN: %env_scudo_opts="soft_rss_limit_mb=32:allocator_may_return_null=1" %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-softlimit-returnnull
// RUN: %env_scudo_opts="soft_rss_limit_mb=32:allocator_may_return_null=0:can_use_proc_maps_statm=0" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-softlimit
// RUN: %env_scudo_opts="soft_rss_limit_mb=32:allocator_may_return_null=1:can_use_proc_maps_statm=0" %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-softlimit-returnnull
// RUN: %env_scudo_opts="hard_rss_limit_mb=32:allocator_may_return_null=0" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-hardlimit
// RUN: %env_scudo_opts="hard_rss_limit_mb=32:allocator_may_return_null=1" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-hardlimit
// RUN: %env_scudo_opts="hard_rss_limit_mb=32:allocator_may_return_null=0:can_use_proc_maps_statm=0" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-hardlimit
// RUN: %env_scudo_opts="hard_rss_limit_mb=32:allocator_may_return_null=1:can_use_proc_maps_statm=0" not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-hardlimit
// Tests that the soft and hard RSS limits work as intended. Without limit or
// with a high limit, the test should pass without any malloc returning NULL or
// the program dying.
// If a limit is specified, it should return some NULL or die depending on
// allocator_may_return_null. This should also work without statm.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
static const size_t kNumAllocs = 64;
static const size_t kAllocSize = 1 << 20; // 1MB.
static void *allocs[kNumAllocs];
int main(int argc, char *argv[]) {
int returned_null = 0;
for (int i = 0; i < kNumAllocs; i++) {
// sleep for 100ms every 8 allocations, to allow the RSS check to catch up.
if (i != 0 && (i & 0x7) == 0)
usleep(100000);
allocs[i] = malloc(kAllocSize);
if (allocs[i])
memset(allocs[i], 0xff, kAllocSize); // Dirty the pages.
else
returned_null++;
}
for (int i = 0; i < kNumAllocs; i++)
free(allocs[i]);
if (returned_null == 0)
printf("All malloc calls succeeded\n");
else
printf("%d malloc calls returned NULL\n", returned_null);
return 0;
}
// CHECK-nolimit: All malloc calls succeeded
// CHECK-softlimit: soft RSS limit exhausted
// CHECK-softlimit-NOT: malloc calls
// CHECK-softlimit-returnnull: soft RSS limit exhausted
// CHECK-softlimit-returnnull: malloc calls returned NULL
// CHECK-hardlimit: hard RSS limit exhausted
// CHECK-hardlimit-NOT: malloc calls