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authorIgnat Korchagin <ignat@cloudflare.com>2020-07-19 22:02:22 +0100
committerRichard Weinberger <richard@nod.at>2020-10-11 23:13:15 +0200
commit730586ff7fada525943f1eee0681fa62a3fc6128 (patch)
tree68215b586ef18d5998968d13c8c15167728bf10e
parent5e1121cd43d4d3436140a462bfc230ff8aeb1693 (diff)
um: Allow static linking for non-glibc implementations
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> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Tested-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Richard Weinberger <richard@nod.at>
-rw-r--r--arch/um/Kconfig6
-rw-r--r--arch/um/drivers/Kconfig6
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index eb51fec75948..f59defeae7bf 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -62,12 +62,12 @@ config NR_CPUS
source "arch/$(HEADER_ARCH)/um/Kconfig"
-config FORBID_STATIC_LINK
- bool
+config MAY_HAVE_RUNTIME_DEPS
+ bool
config STATIC_LINK
bool "Force a static link"
- depends on !FORBID_STATIC_LINK
+ depends on CC_CAN_LINK_STATIC_NO_RUNTIME_DEPS || !MAY_HAVE_RUNTIME_DEPS
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..2e7b8e0e7194 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -234,7 +234,7 @@ config UML_NET_DAEMON
config UML_NET_VECTOR
bool "Vector I/O high performance network devices"
depends on UML_NET
- select FORBID_STATIC_LINK
+ select MAY_HAVE_RUNTIME_DEPS
help
This User-Mode Linux network driver uses multi-message send
and receive functions. The host running the UML guest must have
@@ -246,7 +246,7 @@ config UML_NET_VECTOR
config UML_NET_VDE
bool "VDE transport (obsolete)"
depends on UML_NET
- select FORBID_STATIC_LINK
+ select MAY_HAVE_RUNTIME_DEPS
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 +294,7 @@ config UML_NET_MCAST
config UML_NET_PCAP
bool "pcap transport (obsolete)"
depends on UML_NET
- select FORBID_STATIC_LINK
+ select MAY_HAVE_RUNTIME_DEPS
help
The pcap transport makes a pcap packet stream on the host look
like an ethernet device inside UML. This is useful for making