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Libvirt native C API and daemons
0d166c6b7c
Even with -Wuninitialized (which is part of autobuild.sh --enable-compile-warnings=error), gcc does NOT catch this use of an uninitialized variable: { if (cond) goto error; int a = 1; error: printf("%d", a); } which prints 0 (supposing the stack started life wiped) if cond was true. Clang will catch it, but we don't use clang as often. Using gcc -Wjump-misses-init catches it, but also gives false positives: { if (cond) goto error; int a = 1; return a; error: return 0; } Here, a was never used in the scope of the error block, so declaring it after goto is technically fine (and clang agrees). However, given that our HACKING already documents a preference to C89 decl-before-statement, the false positive warning is enough of a prod to comply with HACKING. [Personally, I'd _really_ rather use C99 decl-after-statement to minimize scope, but until gcc can efficiently and reliably catch scoping and uninitialized usage bugs, I'll settle with the compromise of enforcing a coding standard that happens to reject false positives if it can also detect real bugs.] * acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add -Wjump-misses-init. * src/util/util.c (__virExec): Adjust offenders. * src/conf/domain_conf.c (virDomainTimerDefParseXML): Likewise. * src/remote/remote_driver.c (doRemoteOpen): Likewise. * src/phyp/phyp_driver.c (phypGetLparNAME, phypGetLparProfile) (phypGetVIOSFreeSCSIAdapter, phypVolumeGetKey) (phypGetStoragePoolDevice) (phypVolumeGetPhysicalVolumeByStoragePool) (phypVolumeGetPath): Likewise. * src/vbox/vbox_tmpl.c (vboxNetworkUndefineDestroy) (vboxNetworkCreate, vboxNetworkDumpXML) (vboxNetworkDefineCreateXML): Likewise. * src/xenapi/xenapi_driver.c (getCapsObject) (xenapiDomainDumpXML): Likewise. * src/xenapi/xenapi_utils.c (createVMRecordFromXml): Likewise. * src/security/security_selinux.c (SELinuxGenNewContext): Likewise. * src/qemu/qemu_command.c (qemuBuildCommandLine): Likewise. * src/qemu/qemu_hotplug.c (qemuDomainChangeEjectableMedia): Likewise. * src/qemu/qemu_process.c (qemuProcessWaitForMonitor): Likewise. * src/qemu/qemu_monitor_text.c (qemuMonitorTextGetPtyPaths): Likewise. * src/qemu/qemu_driver.c (qemudDomainShutdown) (qemudDomainBlockStats, qemudDomainMemoryPeek): Likewise. * src/storage/storage_backend_iscsi.c (virStorageBackendCreateIfaceIQN): Likewise. * src/node_device/node_device_udev.c (udevProcessPCI): Likewise. |
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.gnulib@dec3475763 | ||
daemon | ||
docs | ||
examples | ||
include | ||
m4 | ||
po | ||
python | ||
src | ||
tests | ||
tools | ||
.dir-locals.el | ||
.gitignore | ||
.gitmodules | ||
.mailmap | ||
acinclude.m4 | ||
AUTHORS | ||
autobuild.sh | ||
autogen.sh | ||
bootstrap | ||
bootstrap.conf | ||
cfg.mk | ||
ChangeLog-old | ||
configure.ac | ||
COPYING.LIB | ||
HACKING | ||
libvirt.pc.in | ||
libvirt.spec.in | ||
Makefile.am | ||
Makefile.nonreentrant | ||
mingw32-libvirt.spec.in | ||
README | ||
README-hacking | ||
TODO |
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>