* [ptxdist] [PATCH] Add the userspace RCU library
@ 2011-12-25 19:33 Juergen Beisert
2012-01-04 9:57 ` Michael Olbrich
0 siblings, 1 reply; 2+ messages in thread
From: Juergen Beisert @ 2011-12-25 19:33 UTC (permalink / raw)
To: ptxdist
From its README:
This data synchronization library provides read-side access which scales
linearly with the number of cores. It does so by allowing multiples copies
of a given data structure to live at the same time, and by monitoring the data
structure accesses to detect grace periods after which memory reclamation is
possible.
Supported architectures are: x86, PPC and ARM.
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
diff --git a/rules/userspace-rcu.in b/rules/userspace-rcu.in
new file mode 100644
index 0000000..26bcdba
--- /dev/null
+++ b/rules/userspace-rcu.in
@@ -0,0 +1,25 @@
+## SECTION=system_libraries
+
+menuconfig USERSPACE_RCU
+ tristate
+ prompt "libuserspace-rcu "
+ select GLIBC_PTHREAD
+ help
+ liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This
+ data synchronization library provides read-side access which scales
+ linearly with the number of cores. It does so by allowing multiples
+ copies of a given data structure to live at the same time, and by
+ monitoring the data structure accesses to detect grace periods after
+ which memory reclamation is possible.
+
+if USERSPACE_RCU
+
+config USERSPACE_RCU_SMP
+ bool
+ prompt "SMP support"
+ default y
+ help
+ Provide SMP support. Warning: Disable this only on real uniprocessor
+ systems.
+
+endif
diff --git a/rules/userspace-rcu.make b/rules/userspace-rcu.make
new file mode 100644
index 0000000..d896aa6
--- /dev/null
+++ b/rules/userspace-rcu.make
@@ -0,0 +1,73 @@
+# -*-makefile-*-
+#
+# Copyright (C) 2011 by Juergen Beisert <jbe@pengutronix.de>
+#
+# See CREDITS for details about who has contributed to this project.
+#
+# For further information about the PTXdist project and license conditions
+# see the README file.
+#
+
+#
+# We provide this package
+#
+PACKAGES-$(PTXCONF_USERSPACE_RCU) += userspace-rcu
+
+#
+# Paths and names
+#
+USERSPACE_RCU_VERSION := 0.6.7
+USERSPACE_RCU_MD5 := 2705dadd65beda8e8960472c082e44b3
+USERSPACE_RCU := userspace-rcu-$(USERSPACE_RCU_VERSION)
+USERSPACE_RCU_SUFFIX := tar.bz2
+USERSPACE_RCU_URL := http://lttng.org/files/urcu/$(USERSPACE_RCU).$(USERSPACE_RCU_SUFFIX)
+USERSPACE_RCU_SOURCE := $(SRCDIR)/$(USERSPACE_RCU).$(USERSPACE_RCU_SUFFIX)
+USERSPACE_RCU_DIR := $(BUILDDIR)/$(USERSPACE_RCU)
+USERSPACE_RCU_LICENSE := LGPLv2.1
+
+# ----------------------------------------------------------------------------
+# Prepare
+# ----------------------------------------------------------------------------
+
+#
+# autoconf
+#
+USERSPACE_RCU_CONF_TOOL := autoconf
+USERSPACE_RCU_CONF_OPT := $(CROSS_AUTOCONF_USR) \
+ --enable-silent-rules \
+ --disable-dependency-tracking \
+ --enable-shared \
+ --disable-static
+
+ifdef PTXCONF_USERSPACE_RCU_SMP
+USERSPACE_RCU_CONF_OPT += --enable-smp-support
+else
+USERSPACE_RCU_CONF_OPT += --disable-smp-support
+endif
+
+# ----------------------------------------------------------------------------
+# Target-Install
+# ----------------------------------------------------------------------------
+
+$(STATEDIR)/userspace-rcu.targetinstall:
+ @$(call targetinfo)
+
+ @$(call install_init, userspace-rcu)
+ @$(call install_fixup, userspace-rcu,PRIORITY,optional)
+ @$(call install_fixup, userspace-rcu,SECTION,base)
+ @$(call install_fixup, userspace-rcu,AUTHOR,"Juergen Beisert <jbe@pengutronix.de>")
+ @$(call install_fixup, userspace-rcu,DESCRIPTION,"Userspace RCU")
+
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-bp)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-cds)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-common)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-mb)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-qsbr)
+ @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-signal)
+
+ @$(call install_finish, userspace-rcu)
+
+ @$(call touch)
+
+# vim: syntax=make
--
Pengutronix e.K. | Juergen Beisert |
Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
--
ptxdist mailing list
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ptxdist] [PATCH] Add the userspace RCU library
2011-12-25 19:33 [ptxdist] [PATCH] Add the userspace RCU library Juergen Beisert
@ 2012-01-04 9:57 ` Michael Olbrich
0 siblings, 0 replies; 2+ messages in thread
From: Michael Olbrich @ 2012-01-04 9:57 UTC (permalink / raw)
To: ptxdist
On Sun, Dec 25, 2011 at 08:33:20PM +0100, Juergen Beisert wrote:
> >From its README:
> This data synchronization library provides read-side access which scales
> linearly with the number of cores. It does so by allowing multiples copies
> of a given data structure to live at the same time, and by monitoring the data
> structure accesses to detect grace periods after which memory reclamation is
> possible.
>
> Supported architectures are: x86, PPC and ARM.
>
> Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
>
> diff --git a/rules/userspace-rcu.in b/rules/userspace-rcu.in
> new file mode 100644
> index 0000000..26bcdba
> --- /dev/null
> +++ b/rules/userspace-rcu.in
> @@ -0,0 +1,25 @@
> +## SECTION=system_libraries
> +
> +menuconfig USERSPACE_RCU
> + tristate
> + prompt "libuserspace-rcu "
> + select GLIBC_PTHREAD
> + help
> + liburcu is a LGPLv2.1 userspace RCU (read-copy-update) library. This
> + data synchronization library provides read-side access which scales
> + linearly with the number of cores. It does so by allowing multiples
> + copies of a given data structure to live at the same time, and by
> + monitoring the data structure accesses to detect grace periods after
> + which memory reclamation is possible.
> +
> +if USERSPACE_RCU
> +
> +config USERSPACE_RCU_SMP
> + bool
> + prompt "SMP support"
> + default y
> + help
> + Provide SMP support. Warning: Disable this only on real uniprocessor
> + systems.
> +
> +endif
> diff --git a/rules/userspace-rcu.make b/rules/userspace-rcu.make
> new file mode 100644
> index 0000000..d896aa6
> --- /dev/null
> +++ b/rules/userspace-rcu.make
> @@ -0,0 +1,73 @@
> +# -*-makefile-*-
> +#
> +# Copyright (C) 2011 by Juergen Beisert <jbe@pengutronix.de>
> +#
> +# See CREDITS for details about who has contributed to this project.
> +#
> +# For further information about the PTXdist project and license conditions
> +# see the README file.
> +#
> +
> +#
> +# We provide this package
> +#
> +PACKAGES-$(PTXCONF_USERSPACE_RCU) += userspace-rcu
> +
> +#
> +# Paths and names
> +#
> +USERSPACE_RCU_VERSION := 0.6.7
> +USERSPACE_RCU_MD5 := 2705dadd65beda8e8960472c082e44b3
> +USERSPACE_RCU := userspace-rcu-$(USERSPACE_RCU_VERSION)
> +USERSPACE_RCU_SUFFIX := tar.bz2
> +USERSPACE_RCU_URL := http://lttng.org/files/urcu/$(USERSPACE_RCU).$(USERSPACE_RCU_SUFFIX)
> +USERSPACE_RCU_SOURCE := $(SRCDIR)/$(USERSPACE_RCU).$(USERSPACE_RCU_SUFFIX)
> +USERSPACE_RCU_DIR := $(BUILDDIR)/$(USERSPACE_RCU)
> +USERSPACE_RCU_LICENSE := LGPLv2.1
> +
> +# ----------------------------------------------------------------------------
> +# Prepare
> +# ----------------------------------------------------------------------------
> +
> +#
> +# autoconf
> +#
> +USERSPACE_RCU_CONF_TOOL := autoconf
> +USERSPACE_RCU_CONF_OPT :=
break
$(CROSS_AUTOCONF_USR) \
> + --enable-silent-rules \
> + --disable-dependency-tracking \
remove
> + --enable-shared \
> + --disable-static
> +
> +ifdef PTXCONF_USERSPACE_RCU_SMP
> +USERSPACE_RCU_CONF_OPT += --enable-smp-support
> +else
> +USERSPACE_RCU_CONF_OPT += --disable-smp-support
> +endif
ptx/endis
> +
> +# ----------------------------------------------------------------------------
> +# Target-Install
> +# ----------------------------------------------------------------------------
> +
> +$(STATEDIR)/userspace-rcu.targetinstall:
> + @$(call targetinfo)
> +
> + @$(call install_init, userspace-rcu)
> + @$(call install_fixup, userspace-rcu,PRIORITY,optional)
> + @$(call install_fixup, userspace-rcu,SECTION,base)
> + @$(call install_fixup, userspace-rcu,AUTHOR,"Juergen Beisert <jbe@pengutronix.de>")
> + @$(call install_fixup, userspace-rcu,DESCRIPTION,"Userspace RCU")
> +
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-bp)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-cds)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-common)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-mb)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-qsbr)
> + @$(call install_lib, userspace-rcu, 0, 0, 0644, liburcu-signal)
> +
> + @$(call install_finish, userspace-rcu)
> +
> + @$(call touch)
> +
> +# vim: syntax=make
>
> --
> Pengutronix e.K. | Juergen Beisert |
> Linux Solutions for Science and Industry | http://www.pengutronix.de/ |
>
> --
> ptxdist mailing list
> ptxdist@pengutronix.de
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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