The way we create devices under /dev is highly linux specific. For instance we do mknod(), mount(), umount(), etc. Some platforms are even missing some of these functions. Then again, as declared in qemuDomainNamespaceAvailable(): namespaces are linux only. Therefore, to avoid obfuscating the code by trying to make it compile on weird platforms, just provide a non-linux stub for qemuDomainAttachDeviceMknodRecursive(). At the same time, qemuDomainAttachDeviceMknodHelper() which actually calls the non-existent functions is moved under ifdef __linux__ block since its only caller is in that block too. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 38 ++++++++++++++++++++++++++++++-------- 1 file changed, 30 insertions(+), 8 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 080ff336e..eb1a9794b 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -8541,6 +8541,8 @@ struct qemuDomainAttachDeviceMknodData { }; +/* Our way of creating devices is highly linux specific */ +#if defined(__linux__) static int qemuDomainAttachDeviceMknodHelper(pid_t pid ATTRIBUTE_UNUSED, void *opaque) @@ -8638,7 +8640,7 @@ qemuDomainAttachDeviceMknodHelper(pid_t pid ATTRIBUTE_UNUSED, goto cleanup; } -#ifdef WITH_SELINUX +# ifdef WITH_SELINUX if (data->tcon && lsetfilecon_raw(data->file, (VIR_SELINUX_CTX_CONST char *) data->tcon) < 0) { VIR_WARNINGS_NO_WLOGICALOP_EQUAL_EXPR @@ -8650,7 +8652,7 @@ qemuDomainAttachDeviceMknodHelper(pid_t pid ATTRIBUTE_UNUSED, goto cleanup; } } -#endif +# endif /* Finish mount process started earlier. */ if (isReg && @@ -8661,9 +8663,9 @@ qemuDomainAttachDeviceMknodHelper(pid_t pid ATTRIBUTE_UNUSED, cleanup: if (ret < 0 && delDevice) unlink(data->file); -#ifdef WITH_SELINUX +# ifdef WITH_SELINUX freecon(data->tcon); -#endif +# endif virFileFreeACLs(&data->acl); return ret; } @@ -8754,14 +8756,14 @@ qemuDomainAttachDeviceMknodRecursive(virQEMUDriverPtr driver, goto cleanup; } -#ifdef WITH_SELINUX +# ifdef WITH_SELINUX if (lgetfilecon_raw(file, &data.tcon) < 0 && (errno != ENOTSUP && errno != ENODATA)) { virReportSystemError(errno, _("Unable to get SELinux label from %s"), file); goto cleanup; } -#endif +# endif if (STRPREFIX(file, DEVPREFIX)) { size_t i; @@ -8798,9 +8800,9 @@ qemuDomainAttachDeviceMknodRecursive(virQEMUDriverPtr driver, ret = 0; cleanup: -#ifdef WITH_SELINUX +# ifdef WITH_SELINUX freecon(data.tcon); -#endif +# endif virFileFreeACLs(&data.acl); if (isReg && target) umount(target); @@ -8810,6 +8812,26 @@ qemuDomainAttachDeviceMknodRecursive(virQEMUDriverPtr driver, } +#else /* !defined(__linux__) */ + + +static int +qemuDomainAttachDeviceMknodRecursive(virQEMUDriverPtr driver ATTRIBUTE_UNUSED, + virDomainObjPtr vm ATTRIBUTE_UNUSED, + const char *file ATTRIBUTE_UNUSED, + char * const *devMountsPath ATTRIBUTE_UNUSED, + size_t ndevMountsPath ATTRIBUTE_UNUSED, + unsigned int ttl ATTRIBUTE_UNUSED) +{ + virReportSystemError(ENOSYS, "%s", + _("Namespaces are not supported on this platform.")); + return -1; +} + + +#endif /* !defined(__linux__) */ + + static int qemuDomainAttachDeviceMknod(virQEMUDriverPtr driver, virDomainObjPtr vm, -- 2.13.0