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tbb: initial package 2021.6.0

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This commit is contained in:
SupervisedThinking 2022-09-29 13:11:03 +02:00
parent 4e0b5e1bc7
commit d6fe335e23
2 changed files with 90 additions and 0 deletions
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27
packages/devel/tbb/package.mk Normal file
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@ -0,0 +1,27 @@
# SPDX-License-Identifier: GPL-2.0-only
# Copyright (C) 2022-present Team LibreELEC (https://libreelec.tv)
PKG_NAME="tbb"
PKG_VERSION="2021.6.0"
PKG_SHA256="4897dd106d573e9dacda8509ca5af1a0e008755bf9c383ef6777ac490223031f"
PKG_LICENSE="Apache-2.0"
PKG_SITE="https://github.com/oneapi-src/oneTBB"
PKG_URL="https://github.com/oneapi-src/oneTBB/archive/refs/tags/v${PKG_VERSION}.tar.gz"
PKG_DEPENDS_HOST="cmake:host ninja:host"
PKG_LONGDESC="oneTBB is a flexible C++ library that simplifies the work of adding parallelism to complex applications"
PKG_CMAKE_OPTS_HOST="-DTBB_TEST=OFF \
-DTBB_EXAMPLES=OFF \
-DTBB_STRICT=OFF \
-DTBB4PY_BUILD=OFF \
-DTBB_BUILD=ON \
-DTBBMALLOC_BUILD=ON \
-DTBBMALLOC_PROXY_BUILD=ON \
-DTBB_CPF=OFF \
-DTBB_FIND_PACKAGE=OFF \
-DTBB_DISABLE_HWLOC_AUTOMATIC_SEARCH=OFF \
-DTBB_ENABLE_IPO=ON"
pre_configure_host() {
export CXXFLAGS+=" -D__TBB_DYNAMIC_LOAD_ENABLED=0"
}

63
packages/devel/tbb/patches/tbb-999.01-PR824-retry-if-pthread_create-fails-with-EAGAIN.patch Normal file
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@ -0,0 +1,63 @@
From f12c93efd04991bc982a27e2fa6142538c33ca82 Mon Sep 17 00:00:00 2001
From: Rui Ueyama <ruiu@cs.stanford.edu>
Date: Sat, 7 May 2022 19:55:24 +0800
Subject: [PATCH] Retry if pthread_create fails with EAGAIN
On many Unix-like systems, pthread_create can fail spuriously even if
the running machine has enough resources to spawn a new thread.
Therefore, if EAGAIN is returned from pthread_create, we actually have
to try again.
I observed this issue when running the mold linker
(https://github.com/rui314/mold) under a heavy load. mold uses OneTBB
for parallelization.
As another data point, Go has the same logic to retry on EAGAIN:
https://go-review.googlesource.com/c/go/+/33894/
nanosleep is defined in POSIX 2001, so I believe that all Unix-like
systems support it.
Signed-off-by: Rui Ueyama <ruiu@cs.stanford.edu>
---
src/tbb/rml_thread_monitor.h | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/src/tbb/rml_thread_monitor.h b/src/tbb/rml_thread_monitor.h
index 13b556380..5b844b232 100644
--- a/src/tbb/rml_thread_monitor.h
+++ b/src/tbb/rml_thread_monitor.h
@@ -31,6 +31,7 @@
#include <pthread.h>
#include <cstring>
#include <cstdlib>
+#include <time.h>
#else
#error Unsupported platform
#endif
@@ -191,8 +192,24 @@ inline thread_monitor::handle_type thread_monitor::launch( void* (*thread_routin
check(pthread_attr_init( &s ), "pthread_attr_init has failed");
if( stack_size>0 )
check(pthread_attr_setstacksize( &s, stack_size ), "pthread_attr_setstack_size has failed" );
+
pthread_t handle;
- check( pthread_create( &handle, &s, thread_routine, arg ), "pthread_create has failed" );
+ int tries = 0;
+ for (;;) {
+ int error_code = pthread_create(&handle, &s, thread_routine, arg);
+ if (!error_code)
+ break;
+ if (error_code != EAGAIN || tries++ > 20) {
+ handle_perror(error_code, "pthread_create has failed");
+ break;
+ }
+
+ // pthreaed_create can spuriously fail on many Unix-like systems.
+ // Retry after tries * 1 millisecond.
+ struct timespec ts = {0, tries * 1000 * 1000};
+ nanosleep(&ts, NULL);
+ }
+
check( pthread_attr_destroy( &s ), "pthread_attr_destroy has failed" );
return handle;
}