From 005a5b259b876973202153b9c5c5e77bea56df6c Mon Sep 17 00:00:00 2001 From: V3n3RiX Date: Tue, 30 Aug 2022 10:48:18 +0100 Subject: gentoo auto-resync : 30:08:2022 - 10:48:18 --- .../files/jemalloc-5.3.0-backport-pr-2312.patch | 160 +++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 dev-libs/jemalloc/files/jemalloc-5.3.0-backport-pr-2312.patch (limited to 'dev-libs/jemalloc/files') diff --git a/dev-libs/jemalloc/files/jemalloc-5.3.0-backport-pr-2312.patch b/dev-libs/jemalloc/files/jemalloc-5.3.0-backport-pr-2312.patch new file mode 100644 index 000000000000..8867eeb3b2c1 --- /dev/null +++ b/dev-libs/jemalloc/files/jemalloc-5.3.0-backport-pr-2312.patch @@ -0,0 +1,160 @@ +This backports https://github.com/jemalloc/jemalloc/pull/2312, which +I opened after discussion with upstream in +https://github.com/jemalloc/jemalloc/issues/2305, where they explicitly +clarify that the HPA feature is not tested, not supported, and not +intended for use on non-x86 platforms. + +From: matoro +Date: Wed, 27 Jul 2022 11:13:35 -0400 +Subject: [PATCH] Support HPA only on x86 + +This can be overridden with -DHPA_SUPPORTED. + +Unfortunately has to be implemented using preprocessor macros, can't use +test_skip_if because the test name string is already corrupted by that +time. See https://github.com/jemalloc/jemalloc/issues/2305 +--- + include/jemalloc/internal/hpa.h | 27 +++++++++++++++++++++++++++ + src/hpa.c | 7 +------ + test/include/test/test.h | 9 +++++++++ + test/unit/psset.c | 14 ++++++++++++++ + 4 files changed, 51 insertions(+), 6 deletions(-) + +diff --git a/include/jemalloc/internal/hpa.h b/include/jemalloc/internal/hpa.h +index f3562853e..3d389a644 100644 +--- a/include/jemalloc/internal/hpa.h ++++ b/include/jemalloc/internal/hpa.h +@@ -7,6 +7,33 @@ + #include "jemalloc/internal/pai.h" + #include "jemalloc/internal/psset.h" + ++/* ++ * The HPA_SUPPORTED macro is not a technical indicator of whether HPA ++ * theoretically functions on the platform, but rather whether the platform is ++ * tested/supported for using HPA on by the jemalloc developers. ++ */ ++#ifdef HPA_SUPPORTED ++#warning "Force-enabling HPA support. Do NOT report issues to jemalloc developers." ++#else ++#define HPA_SUPPORTED 1 ++ ++/* ++ * At least until the API and implementation is somewhat settled, we ++ * don't want to try to debug the VM subsystem on the hardest-to-test ++ * platform. ++ */ ++#ifdef _WIN32 ++#undef HPA_SUPPORTED ++#endif ++ ++/* ++ * https://github.com/jemalloc/jemalloc/issues/2305#issuecomment-1195917164 ++ */ ++#if !defined(__x86_64__) && !defined(__i386__) ++#undef HPA_SUPPORTED ++#endif ++#endif ++ + typedef struct hpa_central_s hpa_central_t; + struct hpa_central_s { + /* +diff --git a/src/hpa.c b/src/hpa.c +index 7e2aeba0c..0a9946b9e 100644 +--- a/src/hpa.c ++++ b/src/hpa.c +@@ -25,12 +25,7 @@ static uint64_t hpa_time_until_deferred_work(tsdn_t *tsdn, pai_t *self); + + bool + hpa_supported() { +-#ifdef _WIN32 +- /* +- * At least until the API and implementation is somewhat settled, we +- * don't want to try to debug the VM subsystem on the hardest-to-test +- * platform. +- */ ++#ifndef HPA_SUPPORTED + return false; + #endif + if (!pages_can_hugify) { +diff --git a/test/include/test/test.h b/test/include/test/test.h +index d4b65912d..7fa56f7be 100644 +--- a/test/include/test/test.h ++++ b/test/include/test/test.h +@@ -546,6 +546,15 @@ static void \ + f(void) { \ + p_test_init(#f); + ++#define TEST_SKIP(f) \ ++static void \ ++f(void) { \ ++ p_test_init(#f); \ ++ test_skip("%s:%s:%d: Test skipped: ", \ ++ __func__, __FILE__, __LINE__); \ ++ p_test_fini(); \ ++} ++ + #define TEST_END \ + goto label_test_end; \ + label_test_end: \ +diff --git a/test/unit/psset.c b/test/unit/psset.c +index 6ff720129..af764d3a3 100644 +--- a/test/unit/psset.c ++++ b/test/unit/psset.c +@@ -276,6 +276,7 @@ TEST_BEGIN(test_evict) { + } + TEST_END + ++#ifdef HPA_SUPPORTED + TEST_BEGIN(test_multi_pageslab) { + bool err; + hpdata_t *ps; +@@ -338,6 +339,9 @@ TEST_BEGIN(test_multi_pageslab) { + expect_false(err, "Allocation should have succeeded"); + } + TEST_END ++#else ++TEST_SKIP(test_multi_pageslab) ++#endif + + static void + stats_expect_empty(psset_bin_stats_t *stats) { +@@ -427,6 +431,7 @@ TEST_END + * (There's nothing magic about these numbers; it's just useful to share the + * setup between the oldest fit and the insert/remove test). + */ ++#ifdef HPA_SUPPORTED + static void + init_test_pageslabs(psset_t *psset, hpdata_t *pageslab, + hpdata_t *worse_pageslab, edata_t *alloc, edata_t *worse_alloc) { +@@ -472,7 +477,9 @@ init_test_pageslabs(psset_t *psset, hpdata_t *pageslab, + &alloc[HUGEPAGE_PAGES - 1]); + expect_ptr_null(evicted, "Unexpected eviction"); + } ++#endif + ++#ifdef HPA_SUPPORTED + TEST_BEGIN(test_oldest_fit) { + bool err; + edata_t alloc[HUGEPAGE_PAGES]; +@@ -495,7 +502,11 @@ TEST_BEGIN(test_oldest_fit) { + "Allocated from the wrong pageslab"); + } + TEST_END ++#else ++TEST_SKIP(test_oldest_fit) ++#endif + ++#ifdef HPA_SUPPORTED + TEST_BEGIN(test_insert_remove) { + bool err; + hpdata_t *ps; +@@ -541,6 +552,9 @@ TEST_BEGIN(test_insert_remove) { + expect_true(err, "psset should be empty, but an alloc succeeded"); + } + TEST_END ++#else ++TEST_SKIP(test_insert_remove) ++#endif + + TEST_BEGIN(test_purge_prefers_nonhuge) { + /* -- cgit v1.2.3