* [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
@ 2020-01-24 22:14 Brendan Higgins
2020-02-08 1:07 ` Brendan Higgins
2020-02-10 14:56 ` Anton Ivanov
0 siblings, 2 replies; 5+ messages in thread
From: Brendan Higgins @ 2020-01-24 22:14 UTC (permalink / raw)
To: jdike, richard, anton.ivanov, geert, james_mcmechan
Cc: linux-um, linux-kernel, davidgow, Brendan Higgins
Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
UML_NET_PCAP; this is because glibc tries to load NSS which does not
support being statically linked. So make CONFIG_STATIC_LINK depend on
!UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#t
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
---
arch/um/Kconfig | 8 +++++++-
arch/um/drivers/Kconfig | 3 +++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 0917f8443c285..28d62151fb2ed 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -62,9 +62,12 @@ config NR_CPUS
source "arch/$(HEADER_ARCH)/um/Kconfig"
+config FORBID_STATIC_LINK
+ bool
+
config STATIC_LINK
bool "Force a static link"
- default n
+ depends on !FORBID_STATIC_LINK
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
@@ -73,6 +76,9 @@ config STATIC_LINK
Additionally, this option enables using higher memory spaces (up to
2.75G) for UML.
+ NOTE: This option is incompatible with some networking features which
+ depend on features that require being dynamically loaded (like NSS).
+
config LD_SCRIPT_STATIC
bool
default y
diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
index 72d4170557820..9160ead56e33c 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -234,6 +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
help
This User-Mode Linux network driver uses multi-message send
and receive functions. The host running the UML guest must have
@@ -245,6 +246,7 @@ 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
@@ -292,6 +294,7 @@ 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
--
2.25.0.341.g760bfbb309-goog
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
2020-01-24 22:14 [PATCH v3] uml: make CONFIG_STATIC_LINK actually static Brendan Higgins
@ 2020-02-08 1:07 ` Brendan Higgins
2020-02-08 7:56 ` Anton Ivanov
2020-02-10 14:56 ` Anton Ivanov
1 sibling, 1 reply; 5+ messages in thread
From: Brendan Higgins @ 2020-02-08 1:07 UTC (permalink / raw)
To: Jeff Dike, Richard Weinberger, Anton Ivanov, Geert Uytterhoeven,
James McMechan
Cc: linux-um, Linux Kernel Mailing List, David Gow
On Fri, Jan 24, 2020 at 2:14 PM Brendan Higgins
<brendanhiggins@google.com> wrote:
>
> Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
> be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
> UML_NET_PCAP; this is because glibc tries to load NSS which does not
> support being statically linked. So make CONFIG_STATIC_LINK depend on
> !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
>
> Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#t
> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
> ---
Ping.
> arch/um/Kconfig | 8 +++++++-
> arch/um/drivers/Kconfig | 3 +++
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/arch/um/Kconfig b/arch/um/Kconfig
> index 0917f8443c285..28d62151fb2ed 100644
> --- a/arch/um/Kconfig
> +++ b/arch/um/Kconfig
> @@ -62,9 +62,12 @@ config NR_CPUS
>
> source "arch/$(HEADER_ARCH)/um/Kconfig"
>
> +config FORBID_STATIC_LINK
> + bool
> +
> config STATIC_LINK
> bool "Force a static link"
> - default n
> + depends on !FORBID_STATIC_LINK
> 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
> @@ -73,6 +76,9 @@ config STATIC_LINK
> Additionally, this option enables using higher memory spaces (up to
> 2.75G) for UML.
>
> + NOTE: This option is incompatible with some networking features which
> + depend on features that require being dynamically loaded (like NSS).
> +
> config LD_SCRIPT_STATIC
> bool
> default y
> diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
> index 72d4170557820..9160ead56e33c 100644
> --- a/arch/um/drivers/Kconfig
> +++ b/arch/um/drivers/Kconfig
> @@ -234,6 +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
> help
> This User-Mode Linux network driver uses multi-message send
> and receive functions. The host running the UML guest must have
> @@ -245,6 +246,7 @@ 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
> @@ -292,6 +294,7 @@ 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
> --
> 2.25.0.341.g760bfbb309-goog
>
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
2020-02-08 1:07 ` Brendan Higgins
@ 2020-02-08 7:56 ` Anton Ivanov
2020-03-29 21:54 ` Richard Weinberger
0 siblings, 1 reply; 5+ messages in thread
From: Anton Ivanov @ 2020-02-08 7:56 UTC (permalink / raw)
To: Brendan Higgins, Jeff Dike, Richard Weinberger,
Geert Uytterhoeven, James McMechan
Cc: linux-um, Linux Kernel Mailing List, David Gow
On 08/02/2020 01:07, Brendan Higgins wrote:
> On Fri, Jan 24, 2020 at 2:14 PM Brendan Higgins
> <brendanhiggins@google.com> wrote:
>>
>> Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
>> be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
>> UML_NET_PCAP; this is because glibc tries to load NSS which does not
>> support being statically linked. So make CONFIG_STATIC_LINK depend on
>> !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
>>
>> Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#t
>> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
>> ---
>
> Ping.
ICMP echo reply,
I thought I acked it :)
If not - apologies.
A.
>
>> arch/um/Kconfig | 8 +++++++-
>> arch/um/drivers/Kconfig | 3 +++
>> 2 files changed, 10 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/um/Kconfig b/arch/um/Kconfig
>> index 0917f8443c285..28d62151fb2ed 100644
>> --- a/arch/um/Kconfig
>> +++ b/arch/um/Kconfig
>> @@ -62,9 +62,12 @@ config NR_CPUS
>>
>> source "arch/$(HEADER_ARCH)/um/Kconfig"
>>
>> +config FORBID_STATIC_LINK
>> + bool
>> +
>> config STATIC_LINK
>> bool "Force a static link"
>> - default n
>> + depends on !FORBID_STATIC_LINK
>> 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
>> @@ -73,6 +76,9 @@ config STATIC_LINK
>> Additionally, this option enables using higher memory spaces (up to
>> 2.75G) for UML.
>>
>> + NOTE: This option is incompatible with some networking features which
>> + depend on features that require being dynamically loaded (like NSS).
>> +
>> config LD_SCRIPT_STATIC
>> bool
>> default y
>> diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
>> index 72d4170557820..9160ead56e33c 100644
>> --- a/arch/um/drivers/Kconfig
>> +++ b/arch/um/drivers/Kconfig
>> @@ -234,6 +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
>> help
>> This User-Mode Linux network driver uses multi-message send
>> and receive functions. The host running the UML guest must have
>> @@ -245,6 +246,7 @@ 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
>> @@ -292,6 +294,7 @@ 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
>> --
>> 2.25.0.341.g760bfbb309-goog
>>
>
> _______________________________________________
> linux-um mailing list
> linux-um@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-um
>
--
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
2020-02-08 7:56 ` Anton Ivanov
@ 2020-03-29 21:54 ` Richard Weinberger
0 siblings, 0 replies; 5+ messages in thread
From: Richard Weinberger @ 2020-03-29 21:54 UTC (permalink / raw)
To: anton ivanov
Cc: Brendan Higgins, Jeff Dike, Geert Uytterhoeven, James McMechan,
linux-um, linux-kernel, davidgow
----- Ursprüngliche Mail -----
> Von: "anton ivanov" <anton.ivanov@cambridgegreys.com>
> An: "Brendan Higgins" <brendanhiggins@google.com>, "Jeff Dike" <jdike@addtoit.com>, "richard" <richard@nod.at>, "Geert
> Uytterhoeven" <geert@linux-m68k.org>, "James McMechan" <james_mcmechan@hotmail.com>
> CC: "linux-um" <linux-um@lists.infradead.org>, "linux-kernel" <linux-kernel@vger.kernel.org>, "davidgow"
> <davidgow@google.com>
> Gesendet: Samstag, 8. Februar 2020 08:56:58
> Betreff: Re: [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
> On 08/02/2020 01:07, Brendan Higgins wrote:
>> On Fri, Jan 24, 2020 at 2:14 PM Brendan Higgins
>> <brendanhiggins@google.com> wrote:
>>>
>>> Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
>>> be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
>>> UML_NET_PCAP; this is because glibc tries to load NSS which does not
>>> support being statically linked. So make CONFIG_STATIC_LINK depend on
>>> !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
>>>
>>> Link:
>>> https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#t
>>> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
>>> ---
>>
>> Ping.
>
> ICMP echo reply,
>
> I thought I acked it :)
>
> If not - apologies.
Applied, thanks!
Thanks,
//richard
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v3] uml: make CONFIG_STATIC_LINK actually static
2020-01-24 22:14 [PATCH v3] uml: make CONFIG_STATIC_LINK actually static Brendan Higgins
2020-02-08 1:07 ` Brendan Higgins
@ 2020-02-10 14:56 ` Anton Ivanov
1 sibling, 0 replies; 5+ messages in thread
From: Anton Ivanov @ 2020-02-10 14:56 UTC (permalink / raw)
To: Brendan Higgins, jdike, richard, geert, james_mcmechan
Cc: linux-um, linux-kernel, davidgow
On 24/01/2020 22:14, Brendan Higgins wrote:
> Currently, CONFIG_STATIC_LINK can be enabled with options which cannot
> be statically linked, namely UML_NET_VECTOR, UML_NET_VDE, and
> UML_NET_PCAP; this is because glibc tries to load NSS which does not
> support being statically linked. So make CONFIG_STATIC_LINK depend on
> !UML_NET_VECTOR && !UML_NET_VDE && !UML_NET_PCAP.
>
> Link: https://lore.kernel.org/lkml/f658f317-be54-ed75-8296-c373c2dcc697@cambridgegreys.com/#t
> Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
> ---
> arch/um/Kconfig | 8 +++++++-
> arch/um/drivers/Kconfig | 3 +++
> 2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/arch/um/Kconfig b/arch/um/Kconfig
> index 0917f8443c285..28d62151fb2ed 100644
> --- a/arch/um/Kconfig
> +++ b/arch/um/Kconfig
> @@ -62,9 +62,12 @@ config NR_CPUS
>
> source "arch/$(HEADER_ARCH)/um/Kconfig"
>
> +config FORBID_STATIC_LINK
> + bool
> +
> config STATIC_LINK
> bool "Force a static link"
> - default n
> + depends on !FORBID_STATIC_LINK
> 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
> @@ -73,6 +76,9 @@ config STATIC_LINK
> Additionally, this option enables using higher memory spaces (up to
> 2.75G) for UML.
>
> + NOTE: This option is incompatible with some networking features which
> + depend on features that require being dynamically loaded (like NSS).
> +
> config LD_SCRIPT_STATIC
> bool
> default y
> diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
> index 72d4170557820..9160ead56e33c 100644
> --- a/arch/um/drivers/Kconfig
> +++ b/arch/um/drivers/Kconfig
> @@ -234,6 +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
> help
> This User-Mode Linux network driver uses multi-message send
> and receive functions. The host running the UML guest must have
> @@ -245,6 +246,7 @@ 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
> @@ -292,6 +294,7 @@ 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
>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
--
Anton R. Ivanov
Cambridgegreys Limited. Registered in England. Company Number 10273661
https://www.cambridgegreys.com/
^ permalink raw reply [flat|nested] 5+ messages in thread
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2020-01-24 22:14 [PATCH v3] uml: make CONFIG_STATIC_LINK actually static Brendan Higgins
2020-02-08 1:07 ` Brendan Higgins
2020-02-08 7:56 ` Anton Ivanov
2020-03-29 21:54 ` Richard Weinberger
2020-02-10 14:56 ` Anton Ivanov
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