Hannu Lounento cd80b0e52e openssl: move ${libdir}/[...]/openssl.cnf to ${PN}-conf
Some openssl command line operations like creating an X.509 CSR require
the file /usr/lib/ssl-1.1/openssl.cnf to exist and fail if it doesn't

    root@qemux86-64:~# openssl req -out my.csr -new -newkey rsa:2048 -nodes -keyout my.key
    Can't open /usr/lib/ssl-1.1/openssl.cnf for reading, No such file or directory
    140289168594176:error:02001002:system library:fopen:No such file or directory:../openssl-1.1.1g/crypto/bio/bss_file.c:69:fopen('/usr/lib/ssl-1.1/openssl.cnf','r')
    140289168594176:error:2006D080:BIO routines:BIO_new_file:no such file:../openssl-1.1.1g/crypto/bio/bss_file.c:76:

which is the case e.g. in core-image-minimal with just the
package openssl-bin added to the image by declaring

    IMAGE_INSTALL_append = " openssl-bin"

e.g. in local.conf.

The file did not exist in the aforementioned image / configuration
because it was packaged to the main openssl package

    FILES_${PN} =+ "${libdir}/ssl-1.1/*"

(there is no other FILES specification that would match the file either)
and

    path/to/poky/build$ rpm --query --package --list tmp/deploy/rpm/core2_64/openssl-1.1.1g-r0.core2_64.rpm
    [...]
    /usr/lib/ssl-1.1/openssl.cnf
    [...]

Hence move /usr/lib/ssl-1.1/openssl.cnf (and openssl.cnf.dist as it
seems closely related) to the ${PN}-conf package to have it installed
with ${PN}-bin, which already (indirectly) depends on ${PN}-conf.

Note that the openssl recipe has the comment

    Add the openssl.cnf file to the openssl-conf package. Make the libcrypto
    package RRECOMMENDS on this package. This will enable the configuration
    file to be installed for both the openssl-bin package and the libcrypto
    package since the openssl-bin package depends on the libcrypto package.

but openssl-conf only contained /etc/ssl/openssl.cnf

    path/to/poky/build$ rpm --query --package --list tmp/deploy/rpm/core2_64/openssl-conf-1.1.1g-r0.core2_64.rpm
    /etc
    /etc/ssl
    /etc/ssl/openssl.cnf

/usr/lib/ssl-1.1/openssl.cnf is actually only a symlink that points to
../../../etc/ssl/openssl.cnf.

Other files and directories in /usr/lib/ssl-1.1/ were considered as well
because they seem to be configuration files and / or related to
(symlinks pointing to) /etc. They were not moved though, because based
on our use case and testing moving the openssl.cnf symlink is sufficient
for fixing the immediate problem and we lack knowledge about the other
files in order to make a decision to change their packaging.

(From OE-Core rev: c1632d7041fe0c18ec61abfa79a9c025af43c033)

Signed-off-by: Hannu Lounento <hannu.lounento@vaisala.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2020-07-08 10:37:12 +01:00

QEMU Emulation Targets
======================

To simplify development, the build system supports building images to
work with the QEMU emulator in system emulation mode. Several architectures
are currently supported in 32 and 64 bit variants:

  * ARM (qemuarm + qemuarm64)
  * x86 (qemux86 + qemux86-64)
  * PowerPC (qemuppc only)
  * MIPS (qemumips + qemumips64)

Use of the QEMU images is covered in the Yocto Project Reference Manual.
The appropriate MACHINE variable value corresponding to the target is given
in brackets.
Description
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