[OE-core] [PATCH] systemtap: Fixed probe syscall.sendfile failure

[Richard Purdie]

On Thu, 2014-08-28 at 15:17 +0500, Muzaffar Mahmood wrote:
> From: Mikhail Durnev <mikhail_durnev at mentor.com>
> 
> Marked __syscall.compat_sendfile as optional
> 
> Signed-off-by: Mikhail Durnev <mikhail_durnev at mentor.com>
> Signed-off-by: Muzaffar Mahmood <muzaffar_mahmood at mentor.com>
> ---

This says what you did but not why. There is nothing at all in the patch
header, no Upstream-Status, no description, no author.

Cheers,

Richard

>  .../systemtap/tapset-linux-sendfile-syscall.patch  |   12 ++++++++++++
>  meta/recipes-kernel/systemtap/systemtap_git.inc    |    1 +
>  2 files changed, 13 insertions(+)
>  create mode 100644 meta/recipes-kernel/systemtap/systemtap/tapset-linux-sendfile-syscall.patch
> 
> diff --git a/meta/recipes-kernel/systemtap/systemtap/tapset-linux-sendfile-syscall.patch b/meta/recipes-kernel/systemtap/systemtap/tapset-linux-sendfile-syscall.patch
> new file mode 100644
> index 0000000..b42ab3c
> --- /dev/null
> +++ b/meta/recipes-kernel/systemtap/systemtap/tapset-linux-sendfile-syscall.patch
> @@ -0,0 +1,12 @@
> +diff -Naur old/tapset/linux/syscalls2.stp new/tapset/linux/syscalls2.stp
> +--- old/tapset/linux/syscalls2.stp	2014-04-21 01:28:41.000000000 -0500
> ++++ new/tapset/linux/syscalls2.stp	2014-04-21 01:38:14.961233914 -0500
> +@@ -1953,7 +1953,7 @@
> + # COMPAT_SYSCALL_DEFINE4(sendfile64, int, out_fd, int, in_fd,
> + #		compat_loff_t __user *, offset, compat_size_t, count)
> + #
> +-probe syscall.sendfile = __syscall.sendfile, __syscall.compat_sendfile
> ++probe syscall.sendfile = __syscall.sendfile, __syscall.compat_sendfile ?
> + {
> + 	name = "sendfile"
> + 	out_fd = __int32($out_fd)
> diff --git a/meta/recipes-kernel/systemtap/systemtap_git.inc b/meta/recipes-kernel/systemtap/systemtap_git.inc
> index 717d66f..3e1e80a 100644
> --- a/meta/recipes-kernel/systemtap/systemtap_git.inc
> +++ b/meta/recipes-kernel/systemtap/systemtap_git.inc
> @@ -6,6 +6,7 @@ PV = "2.5+git${SRCPV}"
>  SRC_URI = "git://sourceware.org/git/systemtap.git \
>             file://docproc-build-fix.patch \
>             file://obsolete_automake_macros.patch \
> +           file://tapset-linux-sendfile-syscall.patch \
>            "
>  
>  # systemtap doesn't support mips
> -- 
> 1.7.9.5
>