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qemu / qemu / fb7c269ed694c103397c5fffbfcccd3e90aed23c
commitfb7c269ed694c103397c5fffbfcccd3e90aed23c[log] [tgz]
authorDunrong Huang <riegamaths@gmail.com>Tue Jul 24 00:42:20 2012 +0800
committerStefan Hajnoczi <stefanha@linux.vnet.ibm.com>Fri Aug 10 14:28:11 2012 +0100
treedf70db387a83dbd0f44552d33eb67606c8404667
parent3d1d9652978ac5a32a0beb4bdf6065ca39440d89 [diff]
vl.c: Exit QEMU early if no machine is found

We check whether the variable machine is NULL or not before accessing
it. If machine is NULL, exit QEMU with an error, this can avoids a
segfault error.

Markus Armbruster <armbru@redhat.com> adds that the segfault can be
reproduced as follows:

  $ qemu-system-xtensa -cpu help

Signed-off-by: Dunrong Huang <riegamaths@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
1 file changed
tree: df70db387a83dbd0f44552d33eb67606c8404667
  1. audio/
  2. block/
  3. bsd-user/
  4. default-configs/
  5. docs/
  6. fpu/
  7. fsdev/
  8. gdb-xml/
  9. hw/
  10. include/
  11. libcacard/
  12. linux-headers/
  13. linux-user/
  14. net/
  15. pc-bios/
  16. qapi/
  17. qga/
  18. QMP/
  19. qom/
  20. roms/
  21. scripts/
  22. slirp/
  23. sysconfigs/
  24. target-alpha/
  25. target-arm/
  26. target-cris/
  27. target-i386/
  28. target-lm32/
  29. target-m68k/
  30. target-microblaze/
  31. target-mips/
  32. target-openrisc/
  33. target-ppc/
  34. target-s390x/
  35. target-sh4/
  36. target-sparc/
  37. target-unicore32/
  38. target-xtensa/
  39. tcg/
  40. tests/
  41. trace/
  42. ui/
  43. .gitignore
  44. .gitmodules
  45. .mailmap
  46. a.out.h
  47. acl.c
  48. acl.h
  49. aes.c
  50. aes.h
  51. aio.c
  52. alpha-dis.c
  53. alpha.ld
  54. arch_init.c
  55. arch_init.h
  56. arm-dis.c
  57. arm.ld
  58. async.c
  59. balloon.c
  60. balloon.h
  61. bitmap.c
  62. bitmap.h
  63. bitops.c
  64. bitops.h
  65. block-migration.c
  66. block-migration.h
  67. block.c
  68. block.h
  69. block_int.h
  70. blockdev.c
  71. blockdev.h
  72. bswap.h
  73. bt-host.c
  74. bt-host.h
  75. bt-vhci.c
  76. buffered_file.c
  77. buffered_file.h
  78. cache-utils.c
  79. cache-utils.h
  80. Changelog
  81. cmd.c
  82. cmd.h
  83. CODING_STYLE
  84. compatfd.c
  85. compatfd.h
  86. compiler.h
  87. config.h
  88. configure
  89. console.c
  90. console.h
  91. COPYING
  92. COPYING.LIB
  93. coroutine-gthread.c
  94. coroutine-sigaltstack.c
  95. coroutine-ucontext.c
  96. coroutine-win32.c
  97. cpu-all.h
  98. cpu-common.h
  99. cpu-defs.h
  100. cpu-exec.c
  101. cpus.c
  102. cpus.h
  103. cputlb.c
  104. cputlb.h
  105. cris-dis.c
  106. cursor.c
  107. cursor_hidden.xpm
  108. cursor_left_ptr.xpm
  109. cutils.c
  110. def-helper.h
  111. device_tree.c
  112. device_tree.h
  113. dis-asm.h
  114. disas.c
  115. disas.h
  116. dma-helpers.c
  117. dma.h
  118. dump-stub.c
  119. dump.c
  120. dump.h
  121. dyngen-exec.h
  122. elf.h
  123. envlist.c
  124. envlist.h
  125. error.c
  126. error.h
  127. error_int.h
  128. event_notifier.c
  129. event_notifier.h
  130. exec-all.h
  131. exec-memory.h
  132. exec-obsolete.h
  133. exec.c
  134. gdbstub.c
  135. gdbstub.h
  136. gen-icount.h
  137. HACKING
  138. hmp-commands.hx
  139. hmp.c
  140. hmp.h
  141. host-utils.c
  142. host-utils.h
  143. hppa-dis.c
  144. hppa.ld
  145. i386-dis.c
  146. i386.ld
  147. ia64-dis.c
  148. ia64.ld
  149. input.c
  150. int128.h
  151. iohandler.c
  152. ioport.c
  153. ioport.h
  154. iorange.h
  155. iov.c
  156. iov.h
  157. json-lexer.c
  158. json-lexer.h
  159. json-parser.c
  160. json-parser.h
  161. json-streamer.c
  162. json-streamer.h
  163. kvm-all.c
  164. kvm-stub.c
  165. kvm.h
  166. libfdt_env.h
  167. LICENSE
  168. linux-aio.c
  169. lm32-dis.c
  170. m68k-dis.c
  171. m68k.ld
  172. main-loop.c
  173. main-loop.h
  174. MAINTAINERS
  175. Makefile
  176. Makefile.dis
  177. Makefile.hw
  178. Makefile.objs
  179. Makefile.target
  180. Makefile.user
  181. memory.c
  182. memory.h
  183. memory_mapping-stub.c
  184. memory_mapping.c
  185. memory_mapping.h
  186. microblaze-dis.c
  187. migration-exec.c
  188. migration-fd.c
  189. migration-tcp.c
  190. migration-unix.c
  191. migration.c
  192. migration.h
  193. mips-dis.c
  194. mips.ld
  195. module.c
  196. module.h
  197. monitor.c
  198. monitor.h
  199. nbd.c
  200. nbd.h
  201. net.c
  202. net.h
  203. notify.c
  204. notify.h
  205. os-posix.c
  206. os-win32.c
  207. osdep.c
  208. osdep.h
  209. oslib-posix.c
  210. oslib-win32.c
  211. path.c
  212. pci-ids.txt
  213. pflib.c
  214. pflib.h
  215. poison.h
  216. posix-aio-compat.c
  217. ppc-dis.c
  218. ppc.ld
  219. ppc64.ld
  220. qapi-schema-guest.json
  221. qapi-schema-test.json
  222. qapi-schema.json
  223. qbool.c
  224. qbool.h
  225. qdict-test-data.txt
  226. qdict.c
  227. qdict.h
  228. qemu-aio.h
  229. qemu-barrier.h
  230. qemu-bridge-helper.c
  231. qemu-char.c
  232. qemu-char.h
  233. qemu-common.h
  234. qemu-config.c
  235. qemu-config.h
  236. qemu-coroutine-int.h
  237. qemu-coroutine-io.c
  238. qemu-coroutine-lock.c
  239. qemu-coroutine-sleep.c
  240. qemu-coroutine.c
  241. qemu-coroutine.h
  242. qemu-doc.texi
  243. qemu-error.c
  244. qemu-error.h
  245. qemu-file.h
  246. qemu-ga.c
  247. qemu-img-cmds.hx
  248. qemu-img.c
  249. qemu-img.texi
  250. qemu-io.c
  251. qemu-lock.h
  252. qemu-log.c
  253. qemu-log.h
  254. qemu-nbd.c
  255. qemu-nbd.texi
  256. qemu-objects.h
  257. qemu-option-internal.h
  258. qemu-option.c
  259. qemu-option.h
  260. qemu-options-wrapper.h
  261. qemu-options.h
  262. qemu-options.hx
  263. qemu-os-posix.h
  264. qemu-os-win32.h
  265. qemu-progress.c
  266. qemu-queue.h
  267. qemu-sockets.c
  268. qemu-tech.texi
  269. qemu-thread-posix.c
  270. qemu-thread-posix.h
  271. qemu-thread-win32.c
  272. qemu-thread-win32.h
  273. qemu-thread.h
  274. qemu-timer-common.c
  275. qemu-timer.c
  276. qemu-timer.h
  277. qemu-tls.h
  278. qemu-tool.c
  279. qemu-user.c
  280. qemu-x509.h
  281. qemu-xattr.h
  282. qemu.sasl
  283. qemu_socket.h
  284. qerror.c
  285. qerror.h
  286. qfloat.c
  287. qfloat.h
  288. qint.c
  289. qint.h
  290. qjson.c
  291. qjson.h
  292. qlist.c
  293. qlist.h
  294. qmp-commands.hx
  295. qmp.c
  296. qobject.h
  297. qstring.c
  298. qstring.h
  299. qtest.c
  300. qtest.h
  301. range.h
  302. readline.c
  303. readline.h
  304. README
  305. rules.mak
  306. s390-dis.c
  307. s390.ld
  308. savevm.c
  309. sh4-dis.c
  310. softmmu-semi.h
  311. softmmu_defs.h
  312. softmmu_exec.h
  313. softmmu_header.h
  314. softmmu_template.h
  315. sparc-dis.c
  316. sparc.ld
  317. sparc64.ld
  318. spice-qemu-char.c
  319. sysemu.h
  320. targphys.h
  321. tcg-runtime.c
  322. tci-dis.c
  323. tci.c
  324. thunk.c
  325. thunk.h
  326. TODO
  327. trace-events
  328. translate-all.c
  329. uboot_image.h
  330. user-exec.c
  331. VERSION
  332. version.rc
  333. vgafont.h
  334. vl.c
  335. vmstate.h
  336. x86_64.ld
  337. xen-all.c
  338. xen-mapcache.c
  339. xen-mapcache.h
  340. xen-stub.c