From: Ignat Korchagin <ignat@cloudflare.com>
To: jdike@addtoit.com, richard@nod.at,
anton.ivanov@cambridgegreys.com, brendanhiggins@google.com,
linux-um@lists.infradead.org, linux-kernel@vger.kernel.org
Cc: Ignat Korchagin <ignat@cloudflare.com>, kernel-team@cloudflare.com
Subject: [PATCH v2 3/3] um: allow static linking for non-glibc implementations
Date: Sat, 4 Jul 2020 09:52:13 +0100 [thread overview]
Message-ID: <20200704085213.444645-4-ignat@cloudflare.com> (raw)
In-Reply-To: <20200704085213.444645-1-ignat@cloudflare.com>
It is possible to produce a statically linked UML binary with UML_NET_VECTOR,
UML_NET_VDE and UML_NET_PCAP options enabled using alternative libc
implementations, which do not rely on NSS, such as musl.
Allow static linking in this case.
Signed-off-by: Ignat Korchagin <ignat@cloudflare.com>
---
arch/um/Kconfig | 2 +-
arch/um/drivers/Kconfig | 3 ---
2 files changed, 1 insertion(+), 4 deletions(-)
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 9318dc6d1a0c..af7ed63f9c74 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -67,7 +67,7 @@ config FORBID_STATIC_LINK
config STATIC_LINK
bool "Force a static link"
- depends on !FORBID_STATIC_LINK
+ depends on CC_CAN_LINK_STATIC_NO_RUNTIME_DEPS || (!UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP)
help
This option gives you the ability to force a static link of UML.
Normally, UML is linked as a shared binary. This is inconvenient for
diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
index 9160ead56e33..72d417055782 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -234,7 +234,6 @@ config UML_NET_DAEMON
config UML_NET_VECTOR
bool "Vector I/O high performance network devices"
depends on UML_NET
- select FORBID_STATIC_LINK
help
This User-Mode Linux network driver uses multi-message send
and receive functions. The host running the UML guest must have
@@ -246,7 +245,6 @@ config UML_NET_VECTOR
config UML_NET_VDE
bool "VDE transport (obsolete)"
depends on UML_NET
- select FORBID_STATIC_LINK
help
This User-Mode Linux network transport allows one or more running
UMLs on a single host to communicate with each other and also
@@ -294,7 +292,6 @@ config UML_NET_MCAST
config UML_NET_PCAP
bool "pcap transport (obsolete)"
depends on UML_NET
- select FORBID_STATIC_LINK
help
The pcap transport makes a pcap packet stream on the host look
like an ethernet device inside UML. This is useful for making
--
2.20.1
next prev parent reply other threads:[~2020-07-04 8:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-04 8:52 [PATCH v2 0/3] um: allow static linking for non-glibc libc implementations Ignat Korchagin
2020-07-04 8:52 ` [PATCH v2 1/3] um/kconfig: introduce CC_CAN_LINK_STATIC_NO_RUNTIME_DEPS Ignat Korchagin
2020-07-15 8:38 ` Brendan Higgins
2020-07-04 8:52 ` [PATCH v2 2/3] um: some fixes to build UML with musl Ignat Korchagin
2020-07-14 8:40 ` Anton Ivanov
2020-07-14 10:23 ` Ignat Korchagin
2020-07-14 10:43 ` Anton Ivanov
2020-07-14 16:02 ` Johannes Berg
2020-07-15 8:47 ` Brendan Higgins
2020-07-04 8:52 ` Ignat Korchagin [this message]
2020-07-15 8:44 ` [PATCH v2 3/3] um: allow static linking for non-glibc implementations Brendan Higgins
2020-07-15 9:30 ` Ignat Korchagin
2020-07-15 8:36 ` [PATCH v2 0/3] um: allow static linking for non-glibc libc implementations Brendan Higgins
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