Kconfig.binfmt 5.3 KB

  1. config BINFMT_ELF
  2. bool "Kernel support for ELF binaries"
  3. depends on MMU && (BROKEN || !FRV)
  4. default y
  5. ---help---
  6. ELF (Executable and Linkable Format) is a format for libraries and
  7. executables used across different architectures and operating
  8. systems. Saying Y here will enable your kernel to run ELF binaries
  9. and enlarge it by about 13 KB. ELF support under Linux has now all
  10. but replaced the traditional Linux a.out formats (QMAGIC and ZMAGIC)
  11. because it is portable (this does *not* mean that you will be able
  12. to run executables from different architectures or operating systems
  13. however) and makes building run-time libraries very easy. Many new
  14. executables are distributed solely in ELF format. You definitely
  15. want to say Y here.
  16. Information about ELF is contained in the ELF HOWTO available from
  17. <http://www.tldp.org/docs.html#howto>.
  18. If you find that after upgrading from Linux kernel 1.2 and saying Y
  19. here, you still can't run any ELF binaries (they just crash), then
  20. you'll have to install the newest ELF runtime libraries, including
  21. ld.so (check the file <file:Documentation/Changes> for location and
  22. latest version).
  23. config BINFMT_ELF_FDPIC
  24. bool "Kernel support for FDPIC ELF binaries"
  25. default y
  26. depends on FRV
  27. help
  28. ELF FDPIC binaries are based on ELF, but allow the individual load
  29. segments of a binary to be located in memory independently of each
  30. other. This makes this format ideal for use in environments where no
  31. MMU is available as it still permits text segments to be shared,
  32. even if data segments are not.
  33. It is also possible to run FDPIC ELF binaries on MMU linux also.
  34. config BINFMT_FLAT
  35. tristate "Kernel support for flat binaries"
  36. depends on !MMU || SUPERH
  37. help
  38. Support uClinux FLAT format binaries.
  39. config BINFMT_ZFLAT
  40. bool "Enable ZFLAT support"
  41. depends on BINFMT_FLAT
  42. select ZLIB_INFLATE
  43. help
  44. Support FLAT format compressed binaries
  46. bool "Enable shared FLAT support"
  47. depends on BINFMT_FLAT
  48. help
  49. Support FLAT shared libraries
  50. config BINFMT_AOUT
  51. tristate "Kernel support for a.out and ECOFF binaries"
  52. depends on X86_32 || ALPHA || ARM || M68K || SPARC32
  53. ---help---
  54. A.out (Assembler.OUTput) is a set of formats for libraries and
  55. executables used in the earliest versions of UNIX. Linux used
  56. the a.out formats QMAGIC and ZMAGIC until they were replaced
  57. with the ELF format.
  58. The conversion to ELF started in 1995. This option is primarily
  59. provided for historical interest and for the benefit of those
  60. who need to run binaries from that era.
  61. Most people should answer N here. If you think you may have
  62. occasional use for this format, enable module support above
  63. and answer M here to compile this support as a module called
  64. binfmt_aout.
  65. If any crucial components of your system (such as /sbin/init
  66. or /lib/ld.so) are still in a.out format, you will have to
  67. say Y here.
  68. config OSF4_COMPAT
  69. bool "OSF/1 v4 readv/writev compatibility"
  70. depends on ALPHA && BINFMT_AOUT
  71. help
  72. Say Y if you are using OSF/1 binaries (like Netscape and Acrobat)
  73. with v4 shared libraries freely available from Compaq. If you're
  74. going to use shared libraries from Tru64 version 5.0 or later, say N.
  75. config BINFMT_EM86
  76. tristate "Kernel support for Linux/Intel ELF binaries"
  77. depends on ALPHA
  78. ---help---
  79. Say Y here if you want to be able to execute Linux/Intel ELF
  80. binaries just like native Alpha binaries on your Alpha machine. For
  81. this to work, you need to have the emulator /usr/bin/em86 in place.
  82. You can get the same functionality by saying N here and saying Y to
  83. "Kernel support for MISC binaries".
  84. You may answer M to compile the emulation support as a module and
  85. later load the module when you want to use a Linux/Intel binary. The
  86. module will be called binfmt_em86. If unsure, say Y.
  87. config BINFMT_SOM
  88. tristate "Kernel support for SOM binaries"
  89. depends on PARISC && HPUX
  90. help
  91. SOM is a binary executable format inherited from HP/UX. Say
  92. Y here to be able to load and execute SOM binaries directly.
  93. config BINFMT_MISC
  94. tristate "Kernel support for MISC binaries"
  95. ---help---
  96. If you say Y here, it will be possible to plug wrapper-driven binary
  97. formats into the kernel. You will like this especially when you use
  98. programs that need an interpreter to run like Java, Python, .NET or
  99. Emacs-Lisp. It's also useful if you often run DOS executables under
  100. the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from
  101. <http://www.tldp.org/docs.html#howto>). Once you have
  102. registered such a binary class with the kernel, you can start one of
  103. those programs simply by typing in its name at a shell prompt; Linux
  104. will automatically feed it to the correct interpreter.
  105. You can do other nice things, too. Read the file
  106. <file:Documentation/binfmt_misc.txt> to learn how to use this
  107. feature, <file:Documentation/java.txt> for information about how
  108. to include Java support. and <file:Documentation/mono.txt> for
  109. information about how to include Mono-based .NET support.
  110. To use binfmt_misc, you will need to mount it:
  111. mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc
  112. You may say M here for module support and later load the module when
  113. you have use for it; the module is called binfmt_misc. If you
  114. don't know what to answer at this point, say Y.