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qemu / qemu / f3a8bdc1d5b260d31422edd46360ff849dfbcc93
commitf3a8bdc1d5b260d31422edd46360ff849dfbcc93[log] [tgz]
authorRichard Henderson <richard.henderson@linaro.org>Sun May 19 13:19:41 2019 -0700
committerLaurent Vivier <laurent@vivier.eu>Mon Jun 24 22:19:30 2019 +0200
tree17037793383c863c36cb2b3a9174c142ad7cdd25
parent474f3938d79ab36b9231c9ad3b5a9314c2aeacde [diff]
util/path: Do not cache all filenames at startup

If one uses -L $PATH to point to a full chroot, the startup time
is significant.  In addition, the existing probing algorithm fails
to handle symlink loops.

Instead, probe individual paths on demand.  Cache both positive
and negative results within $PATH, so that any one filename is
probed only once.

Use glib filename functions for clarity.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20190519201953.20161-2-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
1 file changed
tree: 17037793383c863c36cb2b3a9174c142ad7cdd25
  1. accel/
  2. audio/
  3. authz/
  4. backends/
  5. block/
  6. bsd-user/
  7. chardev/
  8. contrib/
  9. crypto/
  10. default-configs/
  11. disas/
  12. docs/
  13. fpu/
  14. fsdev/
  15. gdb-xml/
  16. hw/
  17. include/
  18. io/
  19. libdecnumber/
  20. linux-headers/
  21. linux-user/
  22. migration/
  23. monitor/
  24. nbd/
  25. net/
  26. pc-bios/
  27. po/
  28. python/
  29. qapi/
  30. qga/
  31. qobject/
  32. qom/
  33. replay/
  34. roms/
  35. scripts/
  36. scsi/
  37. stubs/
  38. target/
  39. tcg/
  40. tests/
  41. trace/
  42. ui/
  43. util/
  44. capstone
  45. dtc
  46. slirp
  47. .cirrus.yml
  48. .dir-locals.el
  49. .editorconfig
  50. .exrc
  51. .gdbinit
  52. .gitignore
  53. .gitlab-ci.yml
  54. .gitmodules
  55. .gitpublish
  56. .mailmap
  57. .patchew.yml
  58. .shippable.yml
  59. .travis.yml
  60. arch_init.c
  61. balloon.c
  62. block.c
  63. blockdev-nbd.c
  64. blockdev.c
  65. blockjob.c
  66. bootdevice.c
  67. bt-host.c
  68. bt-vhci.c
  69. Changelog
  70. CODING_STYLE
  71. configure
  72. COPYING
  73. COPYING.LIB
  74. cpus-common.c
  75. cpus.c
  76. device-hotplug.c
  77. device_tree.c
  78. disas.c
  79. dma-helpers.c
  80. dump.c
  81. exec.c
  82. gdbstub.c
  83. gitdm.config
  84. HACKING
  85. hmp-commands-info.hx
  86. hmp-commands.hx
  87. hmp.h
  88. ioport.c
  89. iothread.c
  90. job-qmp.c
  91. job.c
  92. Kconfig.host
  93. LICENSE
  94. MAINTAINERS
  95. Makefile
  96. Makefile.objs
  97. Makefile.target
  98. memory.c
  99. memory_ldst.inc.c
  100. memory_mapping.c
  101. module-common.c
  102. numa.c
  103. os-posix.c
  104. os-win32.c
  105. qdev-monitor.c
  106. qemu-bridge-helper.c
  107. qemu-deprecated.texi
  108. qemu-doc.texi
  109. qemu-edid.c
  110. qemu-ga.texi
  111. qemu-img-cmds.hx
  112. qemu-img.c
  113. qemu-img.texi
  114. qemu-io-cmds.c
  115. qemu-io.c
  116. qemu-keymap.c
  117. qemu-nbd.c
  118. qemu-nbd.texi
  119. qemu-option-trace.texi
  120. qemu-options-wrapper.h
  121. qemu-options.h
  122. qemu-options.hx
  123. qemu-seccomp.c
  124. qemu-tech.texi
  125. qemu.nsi
  126. qemu.sasl
  127. qtest.c
  128. README
  129. replication.c
  130. replication.h
  131. rules.mak
  132. thunk.c
  133. tpm.c
  134. trace-events
  135. VERSION
  136. version.rc
  137. vl.c
  138. win_dump.c
  139. win_dump.h