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Ian Jackson
0013245473
Some systems have python-config include -D_FORTIFY_SOURCE in the
CFLAGS. But -D_FORTIFY_SOURCE does not (currently) work with -O0, and
-O0 is enabled in debug builds (since 1166ecf781). As a result, on
those systems, debug builds fail.
Work around this problem as follows:
* In configure, detect -D_FORTIFY_SOURCE in $(python-config --cflags)
* If detected, set the new autoconf substitution and make variable
PY_NOOPT_CFLAGS to -O1.
* In tools/Rules.mk, where we add -O0, also add PY_NOOPT_CFLAGS
(which will override the -O0 with -O1 if required).
Overriding the -O0 is better than disabling Fortify because the
latter might have an adverse security impact. A user who wants to
disable optimisation completely even for Python and also disable
Fortify can set the environment variable
EXTRA_CFLAGS_XEN_TOOLS='-U_FORTIFY_SOURCE -O0'
Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Reported-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Jan Beulich <jbeulich@suse.com>
CC: Jan Beulich <JBeulich@suse.com>
CC: Ian Campbell <Ian.Campbell@citrix.com>
CC: Euan Harris <euan.harris@citrix.com>
CC: Wei Liu <wei.liu2@citrix.com>
CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Tested-by: Don Slutz <dslutz@verizon.com>
pygrub is a grub-like bootloader for xen. This tool is to use to boot domU images. To compile pygrub, you will need the following packages installed: 1) Libraries of ext2fs, which is the following package (depend on your Linux distribution): - e2fslibs-dev on Debian based distributions (Debian, Ubuntu, Linspire, Libranet, Xandros, etc...) - e2fsprogs-devel on RedHat, Fedora Core - libext2fs2-devel on Mandriva/Mandrake - e2fsprogs on Gentoo 2) Libraries of reiserfs, which is the following package (depend on your Linux distribution): - libreiserfs-dev on Debian based distributions (Debian, Ubuntu, Xandros, Libranet, Xandros, etc...) - progsreiserfs-devel on RedHat - progsreiserfs on Gentoo