1config BINFMT_ELF 2 bool "Kernel support for ELF binaries" 3 depends on MMU 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 17 Information about ELF is contained in the ELF HOWTO available from 18 <http://www.tldp.org/docs.html#howto>. 19 20 If you find that after upgrading from Linux kernel 1.2 and saying Y 21 here, you still can't run any ELF binaries (they just crash), then 22 you'll have to install the newest ELF runtime libraries, including 23 ld.so (check the file <file:Documentation/Changes> for location and 24 latest version). 25 26config BINFMT_ELF_FDPIC 27 bool "Kernel support for FDPIC ELF binaries" 28 default y 29 depends on FRV 30 help 31 ELF FDPIC binaries are based on ELF, but allow the individual load 32 segments of a binary to be located in memory independently of each 33 other. This makes this format ideal for use in environments where no 34 MMU is available as it still permits text segments to be shared, 35 even if data segments are not. 36 37 It is also possible to run FDPIC ELF binaries on MMU linux also. 38 39config BINFMT_FLAT 40 tristate "Kernel support for flat binaries" 41 depends on !MMU || SUPERH 42 help 43 Support uClinux FLAT format binaries. 44 45config BINFMT_ZFLAT 46 bool "Enable ZFLAT support" 47 depends on BINFMT_FLAT 48 select ZLIB_INFLATE 49 help 50 Support FLAT format compressed binaries 51 52config BINFMT_SHARED_FLAT 53 bool "Enable shared FLAT support" 54 depends on BINFMT_FLAT 55 help 56 Support FLAT shared libraries 57 58config BINFMT_AOUT 59 tristate "Kernel support for a.out and ECOFF binaries" 60 depends on (X86 && !X86_64) || ALPHA || ARM || M68K || SPARC32 61 ---help--- 62 A.out (Assembler.OUTput) is a set of formats for libraries and 63 executables used in the earliest versions of UNIX. Linux used 64 the a.out formats QMAGIC and ZMAGIC until they were replaced 65 with the ELF format. 66 67 The conversion to ELF started in 1995. This option is primarily 68 provided for historical interest and for the benefit of those 69 who need to run binaries from that era. 70 71 Most people should answer N here. If you think you may have 72 occasional use for this format, enable module support above 73 and answer M here to compile this support as a module called 74 binfmt_aout. 75 76 If any crucial components of your system (such as /sbin/init 77 or /lib/ld.so) are still in a.out format, you will have to 78 say Y here. 79 80config OSF4_COMPAT 81 bool "OSF/1 v4 readv/writev compatibility" 82 depends on ALPHA && BINFMT_AOUT 83 help 84 Say Y if you are using OSF/1 binaries (like Netscape and Acrobat) 85 with v4 shared libraries freely available from Compaq. If you're 86 going to use shared libraries from Tru64 version 5.0 or later, say N. 87 88config BINFMT_EM86 89 tristate "Kernel support for Linux/Intel ELF binaries" 90 depends on ALPHA 91 ---help--- 92 Say Y here if you want to be able to execute Linux/Intel ELF 93 binaries just like native Alpha binaries on your Alpha machine. For 94 this to work, you need to have the emulator /usr/bin/em86 in place. 95 96 You can get the same functionality by saying N here and saying Y to 97 "Kernel support for MISC binaries". 98 99 You may answer M to compile the emulation support as a module and 100 later load the module when you want to use a Linux/Intel binary. The 101 module will be called binfmt_em86. If unsure, say Y. 102 103config BINFMT_SOM 104 tristate "Kernel support for SOM binaries" 105 depends on PARISC && HPUX 106 help 107 SOM is a binary executable format inherited from HP/UX. Say 108 Y here to be able to load and execute SOM binaries directly. 109 110config BINFMT_MISC 111 tristate "Kernel support for MISC binaries" 112 ---help--- 113 If you say Y here, it will be possible to plug wrapper-driven binary 114 formats into the kernel. You will like this especially when you use 115 programs that need an interpreter to run like Java, Python, .NET or 116 Emacs-Lisp. It's also useful if you often run DOS executables under 117 the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from 118 <http://www.tldp.org/docs.html#howto>). Once you have 119 registered such a binary class with the kernel, you can start one of 120 those programs simply by typing in its name at a shell prompt; Linux 121 will automatically feed it to the correct interpreter. 122 123 You can do other nice things, too. Read the file 124 <file:Documentation/binfmt_misc.txt> to learn how to use this 125 feature, <file:Documentation/java.txt> for information about how 126 to include Java support. and <file:Documentation/mono.txt> for 127 information about how to include Mono-based .NET support. 128 129 To use binfmt_misc, you will need to mount it: 130 mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc 131 132 You may say M here for module support and later load the module when 133 you have use for it; the module is called binfmt_misc. If you 134 don't know what to answer at this point, say Y. 135