[oe] [meta-networking][PATCH] strongswan: add a PACKAGECONFIG for libbfd stack traces

[Dan Callaghan]

Strongswan installs a signal handler for SIGSEGV, SIGILL, and SIGBUS
which attempts to print a stack trace of the crash. For producing line
numbers in the stack trace, it can use libbfd from binutils, or
libunwind, or else it falls back to a slower method using
/usr/bin/addr2line.

Currently the addr2line method is unlikely to actually work, since there
is no RDEPENDS to pull that command into the image.

This patch turns on the libbfd-based stack traces by default, which
should be a reasonable choice since binutils is already required for
building everything. The setting is nevertheless behind a PACKAGECONFIG
in case libbfd is not wanted in the final image.
---
 meta-networking/recipes-support/strongswan/strongswan_5.8.1.bb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta-networking/recipes-support/strongswan/strongswan_5.8.1.bb b/meta-networking/recipes-support/strongswan/strongswan_5.8.1.bb
index 5408eed27..c8a8d1dc0 100644
--- a/meta-networking/recipes-support/strongswan/strongswan_5.8.1.bb
+++ b/meta-networking/recipes-support/strongswan/strongswan_5.8.1.bb
@@ -24,10 +24,11 @@ EXTRA_OECONF = " \
 
 EXTRA_OECONF += "${@bb.utils.contains('DISTRO_FEATURES', 'systemd', '--with-systemdsystemunitdir=${systemd_unitdir}/system/', '--without-systemdsystemunitdir', d)}"
 
-PACKAGECONFIG ??= "charon curl gmp openssl stroke sqlite3 \
+PACKAGECONFIG ??= "bfd charon curl gmp openssl stroke sqlite3 \
         ${@bb.utils.filter('DISTRO_FEATURES', 'ldap', d)} \
 "
 PACKAGECONFIG[aesni] = "--enable-aesni,--disable-aesni,,${PN}-plugin-aesni"
+PACKAGECONFIG[bfd] = "--enable-bfd-backtraces,--disable-bfd-backtraces,binutils"
 PACKAGECONFIG[charon] = "--enable-charon,--disable-charon,"
 PACKAGECONFIG[curl] = "--enable-curl,--disable-curl,curl,${PN}-plugin-curl"
 PACKAGECONFIG[gmp] = "--enable-gmp,--disable-gmp,gmp,${PN}-plugin-gmp"
-- 
2.20.1