The dpkg binary contains a hard-coded CONFIGDIR path which normally points to /etc/dpkg. If /etc/dpkg/dpkg.cfg.d cannot be accessed and scandir returns EACCESS, or any error other than ENOTDIR, it is treated as a fatal error.
Normally this is not an issue for dpkg, and indeed has been confirmed to be the developers' design intent. But when dpkg-native is built for OpenEmbedded, the hard-coded CONFIGDIR "leaks" the build specific location information into the sstate-cache. Later on, if another user or machine picks up and reuses the dpkg-native binary, it will fail if the original sysroot does not exist, is not a directory, or is otherwise inaccessible. The dpkg utility does not currently allow a command line or environment override of CONFIGDIR, so this is a workaround that patches dpkg such that any failure to access CONFIGDIR is tolerated and treated the same as if the directory were empty. In OpenEmbedded, dpkg-native is always passed command line arguments and the CONFIGDIR is empty, so this does not cause an issue for the way OpenEmbedded uses dpkg-native. This is a workaround that can be removed when dpkg grows the ability to override the CONFIGDIR at runtime, which has been discussed. Signed-off-by: Anders Oleson <[email protected]> --- .../dpkg/dpkg/allow-inaccessible-config-dir.patch | 26 ++++++++++++++++++++++ meta/recipes-devtools/dpkg/dpkg_1.18.7.bb | 4 +++- 2 files changed, 29 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-devtools/dpkg/dpkg/allow-inaccessible-config-dir.patch diff --git a/meta/recipes-devtools/dpkg/dpkg/allow-inaccessible-config-dir.patch b/meta/recipes-devtools/dpkg/dpkg/allow-inaccessible-config-dir.patch new file mode 100644 index 0000000..fca0c16 --- /dev/null +++ b/meta/recipes-devtools/dpkg/dpkg/allow-inaccessible-config-dir.patch @@ -0,0 +1,26 @@ +continue rather than fail if unable to access CONFIGDIR + +Signed-off-by: Anders Oleson <[email protected]> + +Upstream-Status: Inappropriate [embedded specific] + +Note: a more comprehensive fix to dpkg will be to add a feature that allows a +command line override of the hard-coded CONFIGDIR (/etc/dpkg/dpkg.cfg.d). +Once that happens, this patch should be removed. + +Index: dpkg-1.18.7/lib/dpkg/options.c +=================================================================== +--- dpkg-1.18.7.orig/lib/dpkg/options.c ++++ dpkg-1.18.7/lib/dpkg/options.c +@@ -172,11 +172,8 @@ dpkg_options_load_dir(const char *prog, + + dlist_n = scandir(dirname, &dlist, valid_config_filename, alphasort); + if (dlist_n < 0) { +- if (errno == ENOENT) { + free(dirname); + return; +- } else +- ohshite(_("error opening configuration directory '%s'"), dirname); + } + + for (i = 0; i < dlist_n; i++) { diff --git a/meta/recipes-devtools/dpkg/dpkg_1.18.7.bb b/meta/recipes-devtools/dpkg/dpkg_1.18.7.bb index 28fdc13..73d1064 100644 --- a/meta/recipes-devtools/dpkg/dpkg_1.18.7.bb +++ b/meta/recipes-devtools/dpkg/dpkg_1.18.7.bb @@ -13,7 +13,9 @@ SRC_URI = "http://snapshot.debian.org/archive/debian/20160509T100042Z/pool/main/ file://0005-dpkg-compiler.m4-remove-Wvla.patch \ file://0006-add-musleabi-to-known-target-tripets.patch \ " -SRC_URI_append_class-native = " file://glibc2.5-sync_file_range.patch " +SRC_URI_append_class-native = " file://glibc2.5-sync_file_range.patch \ + file://allow-inaccessible-config-dir.patch \ + " SRC_URI[md5sum] = "073dbf2129a54b0fc627464bf8af4a1b" SRC_URI[sha256sum] = "ace36d3a6dc750a42baf797f9e75ec580a21f92bb9ff96b482100755d6d9b87b" -- 1.9.1 -- _______________________________________________ Openembedded-core mailing list [email protected] http://lists.openembedded.org/mailman/listinfo/openembedded-core
