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main/userspace-rcu: add loongarch64 support
backport from: http://git.liburcu.org/?p=userspace-rcu.git;a=commit;h=dc46a9c324ae94d89da41ea9a3f97503115df88e
This commit is contained in:
Jingyun Hua
Patrycja Rosa
parent
d13bb9415e
commit
0bdc7fb46c
@ -8,9 +8,17 @@ pkgdesc="Userspace RCU (read-copy-update) library"
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url="https://liburcu.org/"
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arch="all"
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license="LGPL-2.1-or-later"
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makedepends="bash perl perl-utils"
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makedepends="bash perl perl-utils automake autoconf"
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subpackages="$pkgname-static $pkgname-dev $pkgname-doc"
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source="https://lttng.org/files/urcu/userspace-rcu-$pkgver.tar.bz2"
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source="https://lttng.org/files/urcu/userspace-rcu-$pkgver.tar.bz2
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Add-LoongArch-support.patch
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"
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prepare() {
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default_prepare
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update_config_sub
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autoreconf -fv
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}
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build() {
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./configure \
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@ -52,4 +60,5 @@ static() {
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sha512sums="
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7297e51012f4c44ee27c0e18ed9d87bf24be34db68a5398394c1e683a045bb561cf74aa913398404c0ed5cb8011af728ea12947717fa5f27627e5ca78e63a40f userspace-rcu-0.14.0.tar.bz2
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8fab9358cabfa3a0b60110fe2422584fb6c0301da6d7148b22c64a92b23e2ededca8e62161025cc0a9b653ac3642e84cf3a01238263db691a7aa519c2100350a Add-LoongArch-support.patch
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"
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201
main/userspace-rcu/Add-LoongArch-support.patch
Normal file
201
main/userspace-rcu/Add-LoongArch-support.patch
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@ -0,0 +1,201 @@
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From dc46a9c324ae94d89da41ea9a3f97503115df88e Mon Sep 17 00:00:00 2001
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From: Wang Jing <wangjing@loongson.cn>
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Date: Tue, 8 Jun 2021 19:44:49 +0800
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Subject: [PATCH] Add LoongArch support
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This commit completes LoongArch support.
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LoongArch supports byte and short atomic operations,
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and defines UATOMIC_HAS_ATOMIC_BYTE and UATOMIC_HAS_ATOMIC_SHORT.
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Signed-off-by: Wang Jing <wangjing@loongson.cn>
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Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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Change-Id: I335e654939bfc90994275f2a4fad550c95f3eba4
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---
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README.md | 1 +
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include/Makefile.am | 2 ++
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include/urcu/arch.h | 6 ++++
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include/urcu/arch/loongarch.h | 49 ++++++++++++++++++++++++++++++++
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include/urcu/uatomic.h | 2 ++
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include/urcu/uatomic/loongarch.h | 44 ++++++++++++++++++++++++++++
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6 files changed, 104 insertions(+)
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create mode 100644 include/urcu/arch/loongarch.h
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create mode 100644 include/urcu/uatomic/loongarch.h
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diff --git a/README.md b/README.md
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index 1f7aaaf..cadf4d1 100644
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--- a/README.md
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+++ b/README.md
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@@ -57,6 +57,7 @@ Currently, the following architectures are supported:
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- hppa/PA-RISC
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- m68k
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- RISC-V
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+ - LoongArch
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Tested on:
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diff --git a/include/Makefile.am b/include/Makefile.am
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index c1adfd1..4c32a4c 100644
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--- a/include/Makefile.am
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+++ b/include/Makefile.am
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@@ -12,6 +12,7 @@ nobase_include_HEADERS = \
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urcu/arch.h \
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urcu/arch/hppa.h \
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urcu/arch/ia64.h \
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+ urcu/arch/loongarch.h \
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urcu/arch/m68k.h \
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urcu/arch/mips.h \
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urcu/arch/nios2.h \
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@@ -72,6 +73,7 @@ nobase_include_HEADERS = \
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urcu/uatomic.h \
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urcu/uatomic/hppa.h \
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urcu/uatomic/ia64.h \
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+ urcu/uatomic/loongarch.h \
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urcu/uatomic/m68k.h \
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urcu/uatomic/mips.h \
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urcu/uatomic/nios2.h \
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diff --git a/include/urcu/arch.h b/include/urcu/arch.h
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index 717d79c..5147d30 100644
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--- a/include/urcu/arch.h
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+++ b/include/urcu/arch.h
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@@ -33,6 +33,7 @@
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* URCU_ARCH_HPPA : All HP PA-RISC variants
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* URCU_ARCH_M68K : All Motorola 68000 variants
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* URCU_ARCH_RISCV : All RISC-V variants
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+ * URCU_ARCH_LOONGARCH : All LoongArch variants
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*/
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#if (defined(__INTEL_OFFLOAD) || defined(__TARGET_ARCH_MIC) || defined(__MIC__))
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@@ -151,6 +152,11 @@
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#define URCU_ARCH_RISCV 1
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#include <urcu/arch/riscv.h>
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+#elif defined(__loongarch__)
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+
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+#define URCU_ARCH_LOONGARCH 1
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+#include <urcu/arch/loongarch.h>
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+
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#else
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#error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
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#endif
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diff --git a/include/urcu/arch/loongarch.h b/include/urcu/arch/loongarch.h
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new file mode 100644
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index 0000000..a6d9fee
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--- /dev/null
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+++ b/include/urcu/arch/loongarch.h
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@@ -0,0 +1,49 @@
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+#ifndef _URCU_ARCH_LOONGARCH_H
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+#define _URCU_ARCH_LOONGARCH_H
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+
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+/*
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+ * arch/loongarch.h: trivial definitions for the LoongArch architecture.
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+ *
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+ * Copyright (c) 2021 Wang Jing <wangjing@loongson.cn>
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Lesser General Public
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+ * License as published by the Free Software Foundation; either
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+ * version 2.1 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public
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+ * License along with this library; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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+ */
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+
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+#include <urcu/compiler.h>
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+#include <urcu/config.h>
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+#include <urcu/syscall-compat.h>
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+#include <stdlib.h>
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+#include <sys/time.h>
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+
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+/*
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+ * On Linux, define the membarrier system call number if not yet available in
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+ * the system headers.
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+ */
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+#if (defined(__linux__) && !defined(__NR_membarrier))
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+#define __NR_membarrier 283
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+#endif
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+
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+#ifdef __cplusplus
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+}
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+#endif
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+
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+#include <urcu/arch/generic.h>
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+
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+#endif /* _URCU_ARCH_LOONGARCH_H */
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diff --git a/include/urcu/uatomic.h b/include/urcu/uatomic.h
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index eeced1e..561c829 100644
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--- a/include/urcu/uatomic.h
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+++ b/include/urcu/uatomic.h
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@@ -93,6 +93,8 @@ static inline int cmm_to_c11(int mo)
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#include <urcu/uatomic/m68k.h>
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#elif defined(URCU_ARCH_RISCV)
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#include <urcu/uatomic/riscv.h>
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+#elif defined(URCU_ARCH_LOONGARCH)
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+#include <urcu/uatomic/loongarch.h>
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#else
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#error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
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#endif
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diff --git a/include/urcu/uatomic/loongarch.h b/include/urcu/uatomic/loongarch.h
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new file mode 100644
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index 0000000..f41302a
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--- /dev/null
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+++ b/include/urcu/uatomic/loongarch.h
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@@ -0,0 +1,44 @@
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+#ifndef _URCU_UATOMIC_ARCH_LOONGARCH_H
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+#define _URCU_UATOMIC_ARCH_LOONGARCH_H
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+
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+/*
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+ * Atomic exchange operations for the LoongArch architecture. Let GCC do it.
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+ *
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+ * Copyright (c) 2021 Wang Jing <wangjing@loongson.cn>
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a copy
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+ * of this software and associated documentation files (the "Software"), to
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+ * deal in the Software without restriction, including without limitation the
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+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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+ * sell copies of the Software, and to permit persons to whom the Software is
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+ * furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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+ * IN THE SOFTWARE.
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+ */
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+
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+#include <urcu/compiler.h>
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+#include <urcu/system.h>
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+
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+#ifdef __cplusplus
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+extern "C" {
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+#endif
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+
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+#define UATOMIC_HAS_ATOMIC_BYTE
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+#define UATOMIC_HAS_ATOMIC_SHORT
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+
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+#ifdef __cplusplus
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+}
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+#endif
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+
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+#include <urcu/uatomic/generic.h>
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+
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+#endif /* _URCU_UATOMIC_ARCH_LOONGARCH_H */
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--
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2.43.0
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