Re: [OE-core] [PATCH] gnutls_3.5.3.bb: Fix native build on distro with kernel < 3.4.17

[Burton, Ross]

On 18 October 2016 at 02:16, Khem Raj  wrote:

> When using distros which use old kernels gnutls fails to build
> due to missing SYS_getrandom, therefore we need to check for this
> before using it.
> Fixes errorr e.g.
>
> | ../../../gnutls-3.5.3/lib/nettle/rnd-linux.c: In function
> 'have_getrandom':
> | ../../../gnutls-3.5.3/lib/nettle/rnd-linux.c:59:42: error:
> 'SYS_getrandom' undeclared (first use in this function)
> |  #  define getrandom(dst,s,flags) syscall(SYS_getrandom, (void*)dst,
> (size_t)s, (unsigned int)flags)
>
> Signed-off-by: Khem Raj 
>

Alex's upgrade makes this redundant for master, but I suspect you'll want
to re-send it when we have a Morty maintainer.

Ross
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[OE-core] [PATCH] gnutls_3.5.3.bb: Fix native build on distro with kernel < 3.4.17

[Khem Raj]

When using distros which use old kernels gnutls fails to build
due to missing SYS_getrandom, therefore we need to check for this
before using it.
Fixes errorr e.g.

| ../../../gnutls-3.5.3/lib/nettle/rnd-linux.c: In function 'have_getrandom':
| ../../../gnutls-3.5.3/lib/nettle/rnd-linux.c:59:42: error: 'SYS_getrandom' 
undeclared (first use in this function)
|  #  define getrandom(dst,s,flags) syscall(SYS_getrandom, (void*)dst, 
(size_t)s, (unsigned int)flags)

Signed-off-by: Khem Raj 
---
 .../gnutls/gnutls/check_SYS_getrandom.patch| 35 ++
 meta/recipes-support/gnutls/gnutls_3.5.3.bb|  1 +
 2 files changed, 36 insertions(+)
 create mode 100644 meta/recipes-support/gnutls/gnutls/check_SYS_getrandom.patch

diff --git a/meta/recipes-support/gnutls/gnutls/check_SYS_getrandom.patch 
b/meta/recipes-support/gnutls/gnutls/check_SYS_getrandom.patch
new file mode 100644
index 000..535c22a
--- /dev/null
+++ b/meta/recipes-support/gnutls/gnutls/check_SYS_getrandom.patch
@@ -0,0 +1,35 @@
+From f26c3979ab0325edb2e410d287bc501cf00e0ac0 Mon Sep 17 00:00:00 2001
+From: Nikos Mavrogiannopoulos 
+Date: Mon, 22 Aug 2016 16:32:34 +0200
+Subject: [PATCH] rnd-linux: added check for SYS_getrandom being defined
+
+This allows to compile the getrandom() code in old Linux systems
+which do not have the system call defined.
+---
+
+Upstream-Status: Backport
+Signed-off-by: Khem Raj 
+
+ lib/nettle/rnd-linux.c | 6 +-
+ 1 file changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/lib/nettle/rnd-linux.c b/lib/nettle/rnd-linux.c
+index d7f07a6..7a24d05 100644
+--- a/lib/nettle/rnd-linux.c
 b/lib/nettle/rnd-linux.c
+@@ -56,7 +56,11 @@ static dev_t _gnutls_urandom_fd_rdev = 0;
+ # else
+ #  include 
+ #  undef getrandom
+-#  define getrandom(dst,s,flags) syscall(SYS_getrandom, (void*)dst, 
(size_t)s, (unsigned int)flags)
++#  if defined(SYS_getrandom)
++#   define getrandom(dst,s,flags) syscall(SYS_getrandom, (void*)dst, 
(size_t)s, (unsigned int)flags)
++#  else
++#   define getrandom(dst,s,flags) -1
++#  endif
+ # endif
+ 
+ static unsigned have_getrandom(void)
+--
+libgit2 0.24.0
+
diff --git a/meta/recipes-support/gnutls/gnutls_3.5.3.bb 
b/meta/recipes-support/gnutls/gnutls_3.5.3.bb
index b2dbb07..0400588 100644
--- a/meta/recipes-support/gnutls/gnutls_3.5.3.bb
+++ b/meta/recipes-support/gnutls/gnutls_3.5.3.bb
@@ -4,6 +4,7 @@ SRC_URI += "file://correct_rpl_gettimeofday_signature.patch \
 file://0001-configure.ac-fix-sed-command.patch \
 file://use-pkg-config-to-locate-zlib.patch \
 file://0001-Use-correct-include-dir-with-minitasn.patch \
+file://check_SYS_getrandom.patch \
 file://CVE-2016-7444.patch \
"
 SRC_URI[md5sum] = "6c2c7f40ddf52933ee3ca474cb8cb63c"
-- 
2.10.0

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