[meta-virtualization][master-next][PATCH] lxc: fix compilation error for ARM/ARM64

[meta-virtualization][master-next][PATCH] lxc: fix compilation error for ARM/ARM64

[Chen Qi]

There's compilation error when building lxc for ARM/ARM64 BSPs.
The error message is as below:

  | ../git/src/lxc/cgroups/cgfsng.c:1234:111: error: incompatible
    type for argument 10 of 'sd_bus_call_method_asyncv'

The 10th argument is of type va_list but NULL is supplied, thus causing
compilation error.

So we use sd_bus_call_method_async to replace the asyncv one to
solve this issue.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
---
 ...method_async-to-replace-the-asyncv-o.patch | 49 +++++++++++++++++++
 recipes-containers/lxc/lxc_git.bb             |  1 +
 2 files changed, 50 insertions(+)
 create mode 100644 recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch

diff --git a/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch b/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch
new file mode 100644
index 0000000..ef87a0c
--- /dev/null
+++ b/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch
@@ -0,0 +1,49 @@
+From b0abedf60b40adf0f2fb3cf9dfee4bc601f7b39f Mon Sep 17 00:00:00 2001
+From: Chen Qi <Qi.Chen@windriver.com>
+Date: Thu, 25 Aug 2022 05:45:53 -0700
+Subject: [PATCH] use sd_bus_call_method_async to replace the asyncv one
+
+The sd_bus_call_method_asyncv's 10th parameter is of type
+va_list and supplying NULL when invoking it causes compilation
+error. Just replace it with the async one.
+
+Upstream-Status: Submitted [https://github.com/lxc/lxc/pull/4187]
+
+Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
+---
+ meson.build              | 4 ++--
+ src/lxc/cgroups/cgfsng.c | 2 +-
+ 2 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/meson.build b/meson.build
+index 21955a050..f8bdcf4e8 100644
+--- a/meson.build
++++ b/meson.build
+@@ -295,9 +295,9 @@ if not want_sd_bus.disabled()
+         has_sd_bus = false
+     endif
+ 
+-    if not cc.has_function('sd_bus_call_method_asyncv', prefix: '#include <systemd/sd-bus.h>', dependencies: libsystemd) 
++    if not cc.has_function('sd_bus_call_method_async', prefix: '#include <systemd/sd-bus.h>', dependencies: libsystemd) 
+         if not sd_bus_optional
+-            error('libsystemd misses required sd_bus_call_method_asyncv function')
++            error('libsystemd misses required sd_bus_call_method_async function')
+         endif
+ 
+         has_sd_bus = false
+diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
+index 8a3615893..d90e5385e 100644
+--- a/src/lxc/cgroups/cgfsng.c
++++ b/src/lxc/cgroups/cgfsng.c
+@@ -1232,7 +1232,7 @@ static int unpriv_systemd_create_scope(struct cgroup_ops *ops, struct lxc_conf *
+ 	if (r < 0)
+ 		return log_error(SYSTEMD_SCOPE_FAILED, "Failed to connect to user bus: %s", strerror(-r));
+ 
+-	r = sd_bus_call_method_asyncv(bus, NULL, DESTINATION, PATH, INTERFACE, "Subscribe", NULL, NULL, NULL, NULL);
++	r = sd_bus_call_method_async(bus, NULL, DESTINATION, PATH, INTERFACE, "Subscribe", NULL, NULL, NULL);
+ 	if (r < 0)
+ 		return log_error(SYSTEMD_SCOPE_FAILED, "Failed to subscribe to signals: %s", strerror(-r));
+ 
+-- 
+2.37.1
+
diff --git a/recipes-containers/lxc/lxc_git.bb b/recipes-containers/lxc/lxc_git.bb
index bcc1795..9cabe05 100644
--- a/recipes-containers/lxc/lxc_git.bb
+++ b/recipes-containers/lxc/lxc_git.bb
@@ -44,6 +44,7 @@ SRC_URI = "git://github.com/lxc/lxc.git;branch=master;protocol=https \
 	file://templates-use-curl-instead-of-wget.patch \
 	file://0001-download-don-t-try-compatbility-index.patch \
 	file://tests-our-init-is-not-busybox.patch \
+	file://0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch \
 	file://dnsmasq.conf \
 	file://lxc-net \
 	"
-- 
2.37.1

Re: [meta-virtualization][master-next][PATCH] lxc: fix compilation error for ARM/ARM64

[Bruce Ashfield]

Thanks for the fixup!

Queued to master-next

Bruce


In message: [meta-virtualization][master-next][PATCH] lxc: fix compilation error for ARM/ARM64
on 25/08/2022 Chen Qi wrote:

> There's compilation error when building lxc for ARM/ARM64 BSPs.
> The error message is as below:
> 
>   | ../git/src/lxc/cgroups/cgfsng.c:1234:111: error: incompatible
>     type for argument 10 of 'sd_bus_call_method_asyncv'
> 
> The 10th argument is of type va_list but NULL is supplied, thus causing
> compilation error.
> 
> So we use sd_bus_call_method_async to replace the asyncv one to
> solve this issue.
> 
> Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
> ---
>  ...method_async-to-replace-the-asyncv-o.patch | 49 +++++++++++++++++++
>  recipes-containers/lxc/lxc_git.bb             |  1 +
>  2 files changed, 50 insertions(+)
>  create mode 100644 recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch
> 
> diff --git a/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch b/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch
> new file mode 100644
> index 0000000..ef87a0c
> --- /dev/null
> +++ b/recipes-containers/lxc/files/0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch
> @@ -0,0 +1,49 @@
> +From b0abedf60b40adf0f2fb3cf9dfee4bc601f7b39f Mon Sep 17 00:00:00 2001
> +From: Chen Qi <Qi.Chen@windriver.com>
> +Date: Thu, 25 Aug 2022 05:45:53 -0700
> +Subject: [PATCH] use sd_bus_call_method_async to replace the asyncv one
> +
> +The sd_bus_call_method_asyncv's 10th parameter is of type
> +va_list and supplying NULL when invoking it causes compilation
> +error. Just replace it with the async one.
> +
> +Upstream-Status: Submitted [https://github.com/lxc/lxc/pull/4187]
> +
> +Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
> +---
> + meson.build              | 4 ++--
> + src/lxc/cgroups/cgfsng.c | 2 +-
> + 2 files changed, 3 insertions(+), 3 deletions(-)
> +
> +diff --git a/meson.build b/meson.build
> +index 21955a050..f8bdcf4e8 100644
> +--- a/meson.build
> ++++ b/meson.build
> +@@ -295,9 +295,9 @@ if not want_sd_bus.disabled()
> +         has_sd_bus = false
> +     endif
> + 
> +-    if not cc.has_function('sd_bus_call_method_asyncv', prefix: '#include <systemd/sd-bus.h>', dependencies: libsystemd) 
> ++    if not cc.has_function('sd_bus_call_method_async', prefix: '#include <systemd/sd-bus.h>', dependencies: libsystemd) 
> +         if not sd_bus_optional
> +-            error('libsystemd misses required sd_bus_call_method_asyncv function')
> ++            error('libsystemd misses required sd_bus_call_method_async function')
> +         endif
> + 
> +         has_sd_bus = false
> +diff --git a/src/lxc/cgroups/cgfsng.c b/src/lxc/cgroups/cgfsng.c
> +index 8a3615893..d90e5385e 100644
> +--- a/src/lxc/cgroups/cgfsng.c
> ++++ b/src/lxc/cgroups/cgfsng.c
> +@@ -1232,7 +1232,7 @@ static int unpriv_systemd_create_scope(struct cgroup_ops *ops, struct lxc_conf *
> + 	if (r < 0)
> + 		return log_error(SYSTEMD_SCOPE_FAILED, "Failed to connect to user bus: %s", strerror(-r));
> + 
> +-	r = sd_bus_call_method_asyncv(bus, NULL, DESTINATION, PATH, INTERFACE, "Subscribe", NULL, NULL, NULL, NULL);
> ++	r = sd_bus_call_method_async(bus, NULL, DESTINATION, PATH, INTERFACE, "Subscribe", NULL, NULL, NULL);
> + 	if (r < 0)
> + 		return log_error(SYSTEMD_SCOPE_FAILED, "Failed to subscribe to signals: %s", strerror(-r));
> + 
> +-- 
> +2.37.1
> +
> diff --git a/recipes-containers/lxc/lxc_git.bb b/recipes-containers/lxc/lxc_git.bb
> index bcc1795..9cabe05 100644
> --- a/recipes-containers/lxc/lxc_git.bb
> +++ b/recipes-containers/lxc/lxc_git.bb
> @@ -44,6 +44,7 @@ SRC_URI = "git://github.com/lxc/lxc.git;branch=master;protocol=https \
>  	file://templates-use-curl-instead-of-wget.patch \
>  	file://0001-download-don-t-try-compatbility-index.patch \
>  	file://tests-our-init-is-not-busybox.patch \
> +	file://0001-use-sd_bus_call_method_async-to-replace-the-asyncv-o.patch \
>  	file://dnsmasq.conf \
>  	file://lxc-net \
>  	"
> -- 
> 2.37.1
> 

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