[oe-commits] [openembedded-core] 02/10: curl: enable threaded resolver
git at git.openembedded.org
git at git.openembedded.org
Mon Sep 4 19:56:07 UTC 2017
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rpurdie pushed a commit to branch master-next
in repository openembedded-core.
commit 468ce5acf682bc39de405ebec3ac9972287572e3
Author: André Draszik <adraszik at tycoint.com>
AuthorDate: Mon Sep 4 10:42:44 2017 +0100
curl: enable threaded resolver
Multi-threaded applications using libcurl crash
on DNS timeouts when built using OE.
The reason is as follows:
By default, libcurl implements DNS timeouts using a
timer (alarm()) and a pair of setjmp()/longjmp().
This approach is unsafe in multi-threaded applications
for various reasons, as e.g. explained in the relevant
man-pages.
To avoid this, libcurl can be compiled with a built-in
threaded resolver, or against the c-ares asynchronous
resolver library.
To keep extra dependencies to a minimum, and to mimic
other distributions (debian at least), and because
c-ares is not available in OE-core, add a PACKAGECONFIG
to be able to enable use of of the built-in threaded
resolver and enable it by default.
Signed-off-by: André Draszik <adraszik at tycoint.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
meta/recipes-support/curl/curl_7.54.1.bb | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/meta/recipes-support/curl/curl_7.54.1.bb b/meta/recipes-support/curl/curl_7.54.1.bb
index f42582a..5c8072f 100644
--- a/meta/recipes-support/curl/curl_7.54.1.bb
+++ b/meta/recipes-support/curl/curl_7.54.1.bb
@@ -20,9 +20,9 @@ SRC_URI[sha256sum] = "fdfc4df2d001ee0c44ec071186e770046249263c491fcae48df0e1a3ca
CVE_PRODUCT = "libcurl"
inherit autotools pkgconfig binconfig multilib_header
-PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)} gnutls proxy zlib"
-PACKAGECONFIG_class-native = "ipv6 proxy ssl zlib"
-PACKAGECONFIG_class-nativesdk = "ipv6 proxy ssl zlib"
+PACKAGECONFIG ??= "${@bb.utils.filter('DISTRO_FEATURES', 'ipv6', d)} gnutls proxy threaded-resolver zlib"
+PACKAGECONFIG_class-native = "ipv6 proxy ssl threaded-resolver zlib"
+PACKAGECONFIG_class-nativesdk = "ipv6 proxy ssl threaded-resolver zlib"
PACKAGECONFIG[dict] = "--enable-dict,--disable-dict,"
PACKAGECONFIG[gnutls] = "--with-gnutls,--without-gnutls,gnutls"
@@ -42,6 +42,7 @@ PACKAGECONFIG[smtp] = "--enable-smtp,--disable-smtp,"
PACKAGECONFIG[ssl] = "--with-ssl --with-random=/dev/urandom,--without-ssl,openssl"
PACKAGECONFIG[telnet] = "--enable-telnet,--disable-telnet,"
PACKAGECONFIG[tftp] = "--enable-tftp,--disable-tftp,"
+PACKAGECONFIG[threaded-resolver] = "--enable-threaded-resolver,--disable-threaded-resolver"
PACKAGECONFIG[zlib] = "--with-zlib=${STAGING_LIBDIR}/../,--without-zlib,zlib"
PACKAGECONFIG[krb5] = "--with-gssapi,--without-gssapi,krb5"
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