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* [uml-devel] [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
@ 2014-10-04 13:11 ` Chen Gang
  0 siblings, 0 replies; 5+ messages in thread
From: Chen Gang @ 2014-10-04 13:11 UTC (permalink / raw)
  To: richard, jdike; +Cc: user-mode-linux-user, user-mode-linux-devel, linux-kernel

syscall() is implemented in libc.so/a (e.g. for glibc, in "syscall.o"),
so for normal ".o" files, it is undefined, neither can be found within
kernel wide, so will break modpost.

Since ".o" files is OK, can simply export 'syscall' symbol, let modpost
know about that, then can fix this issue.

The related error (with allmodconfig under um):

    MODPOST 1205 modules
  ERROR: "syscall" [fs/hostfs/hostfs.ko] undefined!

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/um/kernel/ksyms.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 543c047..e7780f3 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -42,3 +42,6 @@ EXPORT_SYMBOL(os_makedev);
 EXPORT_SYMBOL(add_sigio_fd);
 EXPORT_SYMBOL(ignore_sigio_fd);
 EXPORT_SYMBOL(sigio_broken);
+
+extern long int syscall (long int __sysno, ...);
+EXPORT_SYMBOL(syscall);
-- 
1.9.3

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^ permalink raw reply related	[flat|nested] 5+ messages in thread
* [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
@ 2014-10-04 13:11 ` Chen Gang
  0 siblings, 0 replies; 5+ messages in thread
From: Chen Gang @ 2014-10-04 13:11 UTC (permalink / raw)
  To: richard, jdike; +Cc: user-mode-linux-devel, user-mode-linux-user, linux-kernel

syscall() is implemented in libc.so/a (e.g. for glibc, in "syscall.o"),
so for normal ".o" files, it is undefined, neither can be found within
kernel wide, so will break modpost.

Since ".o" files is OK, can simply export 'syscall' symbol, let modpost
know about that, then can fix this issue.

The related error (with allmodconfig under um):

    MODPOST 1205 modules
  ERROR: "syscall" [fs/hostfs/hostfs.ko] undefined!

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 arch/um/kernel/ksyms.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
index 543c047..e7780f3 100644
--- a/arch/um/kernel/ksyms.c
+++ b/arch/um/kernel/ksyms.c
@@ -42,3 +42,6 @@ EXPORT_SYMBOL(os_makedev);
 EXPORT_SYMBOL(add_sigio_fd);
 EXPORT_SYMBOL(ignore_sigio_fd);
 EXPORT_SYMBOL(sigio_broken);
+
+extern long int syscall (long int __sysno, ...);
+EXPORT_SYMBOL(syscall);
-- 
1.9.3

^ permalink raw reply related	[flat|nested] 5+ messages in thread
* Re: [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
  2014-10-04 13:11 ` Chen Gang
  (?)
@ 2014-10-24 22:52 ` Chen Gang
  -1 siblings, 0 replies; 5+ messages in thread
From: Chen Gang @ 2014-10-24 22:52 UTC (permalink / raw)
  To: richard, jdike; +Cc: user-mode-linux-devel, user-mode-linux-user, linux-kernel

Hello Maintainers:

Please help check this patch, when you have time.

Thanks.

On 10/4/14 21:11, Chen Gang wrote:
> syscall() is implemented in libc.so/a (e.g. for glibc, in "syscall.o"),
> so for normal ".o" files, it is undefined, neither can be found within
> kernel wide, so will break modpost.
> 
> Since ".o" files is OK, can simply export 'syscall' symbol, let modpost
> know about that, then can fix this issue.
> 
> The related error (with allmodconfig under um):
> 
>     MODPOST 1205 modules
>   ERROR: "syscall" [fs/hostfs/hostfs.ko] undefined!
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
> ---
>  arch/um/kernel/ksyms.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
> index 543c047..e7780f3 100644
> --- a/arch/um/kernel/ksyms.c
> +++ b/arch/um/kernel/ksyms.c
> @@ -42,3 +42,6 @@ EXPORT_SYMBOL(os_makedev);
>  EXPORT_SYMBOL(add_sigio_fd);
>  EXPORT_SYMBOL(ignore_sigio_fd);
>  EXPORT_SYMBOL(sigio_broken);
> +
> +extern long int syscall (long int __sysno, ...);
> +EXPORT_SYMBOL(syscall);
> 

-- 
Chen Gang

Open, share, and attitude like air, water, and life which God blessed

^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: [uml-devel] [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
  2014-10-04 13:11 ` Chen Gang
@ 2015-05-31 19:48   ` Richard Weinberger
  -1 siblings, 0 replies; 5+ messages in thread
From: Richard Weinberger @ 2015-05-31 19:48 UTC (permalink / raw)
  To: Chen Gang, jdike
  Cc: Thomas Meyer, user-mode-linux-user, user-mode-linux-devel,
	linux-kernel

Am 04.10.2014 um 15:11 schrieb Chen Gang:
> syscall() is implemented in libc.so/a (e.g. for glibc, in "syscall.o"),
> so for normal ".o" files, it is undefined, neither can be found within
> kernel wide, so will break modpost.
> 
> Since ".o" files is OK, can simply export 'syscall' symbol, let modpost
> know about that, then can fix this issue.
> 
> The related error (with allmodconfig under um):
> 
>     MODPOST 1205 modules
>   ERROR: "syscall" [fs/hostfs/hostfs.ko] undefined!
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
> ---
>  arch/um/kernel/ksyms.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
> index 543c047..e7780f3 100644
> --- a/arch/um/kernel/ksyms.c
> +++ b/arch/um/kernel/ksyms.c
> @@ -42,3 +42,6 @@ EXPORT_SYMBOL(os_makedev);
>  EXPORT_SYMBOL(add_sigio_fd);
>  EXPORT_SYMBOL(ignore_sigio_fd);
>  EXPORT_SYMBOL(sigio_broken);
> +
> +extern long int syscall (long int __sysno, ...);
> +EXPORT_SYMBOL(syscall);

Thanks Chen, applied to my 4.2 queue!

------------------------------------------------------------------------------
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^ permalink raw reply	[flat|nested] 5+ messages in thread
* Re: [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue
@ 2015-05-31 19:48   ` Richard Weinberger
  0 siblings, 0 replies; 5+ messages in thread
From: Richard Weinberger @ 2015-05-31 19:48 UTC (permalink / raw)
  To: Chen Gang, jdike
  Cc: user-mode-linux-devel, user-mode-linux-user, linux-kernel,
	Thomas Meyer

Am 04.10.2014 um 15:11 schrieb Chen Gang:
> syscall() is implemented in libc.so/a (e.g. for glibc, in "syscall.o"),
> so for normal ".o" files, it is undefined, neither can be found within
> kernel wide, so will break modpost.
> 
> Since ".o" files is OK, can simply export 'syscall' symbol, let modpost
> know about that, then can fix this issue.
> 
> The related error (with allmodconfig under um):
> 
>     MODPOST 1205 modules
>   ERROR: "syscall" [fs/hostfs/hostfs.ko] undefined!
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
> ---
>  arch/um/kernel/ksyms.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/um/kernel/ksyms.c b/arch/um/kernel/ksyms.c
> index 543c047..e7780f3 100644
> --- a/arch/um/kernel/ksyms.c
> +++ b/arch/um/kernel/ksyms.c
> @@ -42,3 +42,6 @@ EXPORT_SYMBOL(os_makedev);
>  EXPORT_SYMBOL(add_sigio_fd);
>  EXPORT_SYMBOL(ignore_sigio_fd);
>  EXPORT_SYMBOL(sigio_broken);
> +
> +extern long int syscall (long int __sysno, ...);
> +EXPORT_SYMBOL(syscall);

Thanks Chen, applied to my 4.2 queue!

^ permalink raw reply	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2015-05-31 19:48 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-10-04 13:11 [uml-devel] [PATCH] um: kernel: ksyms: Export symbol syscall() for fixing modpost issue Chen Gang
2014-10-04 13:11 ` Chen Gang
2014-10-24 22:52 ` Chen Gang
2015-05-31 19:48 ` [uml-devel] " Richard Weinberger
2015-05-31 19:48   ` Richard Weinberger

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