deps: bump up tcmalloc version

bazel/deps.yaml

@@ -295,7 +295,7 @@ tcmalloc:
   project_name: "tcmalloc"
   project_desc: "Fast, multi-threaded malloc implementation"
   project_url: "https://github.com/google/tcmalloc"
-  release_date: "2024-12-27"
+  release_date: "2025-09-27"
   use_category:
   - dataplane_core
   - controlplane

bazel/repository_locations.bzl

@@ -165,8 +165,8 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         urls = ["https://github.com/google/libsxg/archive/{version}.tar.gz"],
     ),
     tcmalloc = dict(
-        version = "5da4a882003102fba0c0c0e8f6372567057332eb",
-        sha256 = "fd92d64d8302f1677570fdff844e8152c314e559a6c788c6bfc3844954d0dabd",
+        version = "12f255231938d30493186b0a037feedd70f5a1c1",
+        sha256 = "2a6bef88f8cccda4a63a2f4bb09e655b3ee5ea0a2ce68d16e6ea2d5f5c4be9c1",
         strip_prefix = "tcmalloc-{version}",
         urls = ["https://github.com/google/tcmalloc/archive/{version}.tar.gz"],
     ),

bazel/tcmalloc.patch

@@ -1,8 +1,8 @@
 diff --git a/tcmalloc/BUILD b/tcmalloc/BUILD
 --- a/tcmalloc/BUILD	2025-01-28 16:41:20.424424728 +0000
 +++ b/tcmalloc/BUILD	2025-01-28 16:41:09.408433981 +0000
-@@ -21,7 +21,7 @@
- load("//tcmalloc:copts.bzl", "TCMALLOC_DEFAULT_COPTS")
+@@ -24,7 +24,7 @@
+ load("//tcmalloc:copts.bzl", "TCMALLOC_DEFAULT_COPTS", "TCMALLOC_DEFAULT_CXXOPTS")
  load("//tcmalloc:variants.bzl", "create_tcmalloc_benchmark", "create_tcmalloc_libraries", "create_tcmalloc_testsuite")
 
 -package(default_visibility = ["//visibility:private"])

test/common/common/matchers_test.cc

@@ -472,9 +472,9 @@ TEST_F(StringMatcher, Memory) {
     // The memory constraints were added to ensure that the amount of memory
     // used by matchers is carefully analyzed. These constraints can be relaxed
     // when additional features are added, but it should be done in a thoughtful manner.
-    // Adding 3*8192 bytes because tcmalloc consumption estimation may return
+    // Adding 5*8192 bytes because tcmalloc consumption estimation may return
     // different values depending on memory alignment.
-    EXPECT_MEMORY_LE(prefix_consumed_bytes, 530176 + 3 * 8192);
+    EXPECT_MEMORY_LE(prefix_consumed_bytes, 530176 + 5 * 8192);
   }
   // Regex matcher.
   {
@@ -494,7 +494,7 @@ TEST_F(StringMatcher, Memory) {
     // when additional features are added, but it should be done in a thoughtful  manner.
     // Adding 10*8192 bytes because tcmalloc consumption estimation may return
     // different values depending on memory alignment.
-    EXPECT_MEMORY_LE(regex_consumed_bytes, 15038016 + 10 * 8192);
+    EXPECT_MEMORY_LE(regex_consumed_bytes, 15603776 + 10 * 8192);
   }
 }
 

test/exe/main_common_test.cc

@@ -242,7 +242,10 @@ TEST_P(MainCommonDeathTest, OutOfMemoryHandler) {
         // Allocating a fixed-size large array that results in OOM on gcc
         // results in a compile-time error on clang of "array size too big",
         // so dynamically find a size that is too large.
-        const uint64_t initial = 1 << 30;
+        // Start with a size that exceeds the x86_64 virtual address space limit (128TB)
+        // so that mmap fails immediately and tcmalloc prints its "Unable to allocate"
+        // message to stderr.
+        const uint64_t initial = uint64_t{1} << 46;
         for (uint64_t size = initial;
              size >= initial; // Disallow wraparound to avoid infinite loops on failure.
              size *= 1000) {

test/integration/stats_integration_test.cc

@@ -402,6 +402,7 @@ TEST_P(ClusterMemoryTestRunner, MemoryLargeClusterSize) {
   // 2022/10/27                       44000   Update tcmalloc
   // 2025/07/28  40266    44299       44500   Add request_count_ field to ActiveClient
   // 2026/01/23           44528       45000   Fix test flakes
+  // 2026/02/13  43467    45575       46000   Update tcmalloc to 12f2552 (2025-09-27)
 
   // Note: when adjusting this value: EXPECT_MEMORY_EQ is active only in CI
   // 'release' builds, where we control the platform and tool-chain. So you
@@ -416,7 +417,7 @@ TEST_P(ClusterMemoryTestRunner, MemoryLargeClusterSize) {
   // https://github.com/envoyproxy/envoy/blob/main/source/docs/stats.md#stats-memory-tests
   // for details on how to fix.
 
-  EXPECT_MEMORY_LE(m_per_cluster, 45000); // Round up to allow platform variations.
+  EXPECT_MEMORY_LE(m_per_cluster, 46000); // Round up to allow platform variations.
 }
 
 TEST_P(ClusterMemoryTestRunner, MemoryLargeHostSizeWithStats) {