1config 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 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 COMPAT_BINFMT_ELF 27 bool 28 depends on COMPAT && MMU 29 30config BINFMT_ELF_FDPIC 31 bool "Kernel support for FDPIC ELF binaries" 32 default y 33 depends on (FRV || BLACKFIN || (SUPERH32 && !MMU)) 34 help 35 ELF FDPIC binaries are based on ELF, but allow the individual load 36 segments of a binary to be located in memory independently of each 37 other. This makes this format ideal for use in environments where no 38 MMU is available as it still permits text segments to be shared, 39 even if data segments are not. 40 41 It is also possible to run FDPIC ELF binaries on MMU linux also. 42 43config BINFMT_FLAT 44 bool "Kernel support for flat binaries" 45 depends on !MMU && (!FRV || BROKEN) 46 help 47 Support uClinux FLAT format binaries. 48 49config BINFMT_ZFLAT 50 bool "Enable ZFLAT support" 51 depends on BINFMT_FLAT 52 select ZLIB_INFLATE 53 help 54 Support FLAT format compressed binaries 55 56config BINFMT_SHARED_FLAT 57 bool "Enable shared FLAT support" 58 depends on BINFMT_FLAT 59 help 60 Support FLAT shared libraries 61 62config HAVE_AOUT 63 def_bool n 64 65config BINFMT_AOUT 66 tristate "Kernel support for a.out and ECOFF binaries" 67 depends on HAVE_AOUT 68 ---help--- 69 A.out (Assembler.OUTput) is a set of formats for libraries and 70 executables used in the earliest versions of UNIX. Linux used 71 the a.out formats QMAGIC and ZMAGIC until they were replaced 72 with the ELF format. 73 74 The conversion to ELF started in 1995. This option is primarily 75 provided for historical interest and for the benefit of those 76 who need to run binaries from that era. 77 78 Most people should answer N here. If you think you may have 79 occasional use for this format, enable module support above 80 and answer M here to compile this support as a module called 81 binfmt_aout. 82 83 If any crucial components of your system (such as /sbin/init 84 or /lib/ld.so) are still in a.out format, you will have to 85 say Y here. 86 87config OSF4_COMPAT 88 bool "OSF/1 v4 readv/writev compatibility" 89 depends on ALPHA && BINFMT_AOUT 90 help 91 Say Y if you are using OSF/1 binaries (like Netscape and Acrobat) 92 with v4 shared libraries freely available from Compaq. If you're 93 going to use shared libraries from Tru64 version 5.0 or later, say N. 94 95config BINFMT_EM86 96 tristate "Kernel support for Linux/Intel ELF binaries" 97 depends on ALPHA 98 ---help--- 99 Say Y here if you want to be able to execute Linux/Intel ELF 100 binaries just like native Alpha binaries on your Alpha machine. For 101 this to work, you need to have the emulator /usr/bin/em86 in place. 102 103 You can get the same functionality by saying N here and saying Y to 104 "Kernel support for MISC binaries". 105 106 You may answer M to compile the emulation support as a module and 107 later load the module when you want to use a Linux/Intel binary. The 108 module will be called binfmt_em86. If unsure, say Y. 109 110config BINFMT_SOM 111 tristate "Kernel support for SOM binaries" 112 depends on PARISC && HPUX 113 help 114 SOM is a binary executable format inherited from HP/UX. Say 115 Y here to be able to load and execute SOM binaries directly. 116 117config BINFMT_MISC 118 tristate "Kernel support for MISC binaries" 119 ---help--- 120 If you say Y here, it will be possible to plug wrapper-driven binary 121 formats into the kernel. You will like this especially when you use 122 programs that need an interpreter to run like Java, Python, .NET or 123 Emacs-Lisp. It's also useful if you often run DOS executables under 124 the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from 125 <http://www.tldp.org/docs.html#howto>). Once you have 126 registered such a binary class with the kernel, you can start one of 127 those programs simply by typing in its name at a shell prompt; Linux 128 will automatically feed it to the correct interpreter. 129 130 You can do other nice things, too. Read the file 131 <file:Documentation/binfmt_misc.txt> to learn how to use this 132 feature, <file:Documentation/java.txt> for information about how 133 to include Java support. and <file:Documentation/mono.txt> for 134 information about how to include Mono-based .NET support. 135 136 To use binfmt_misc, you will need to mount it: 137 mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc 138 139 You may say M here for module support and later load the module when 140 you have use for it; the module is called binfmt_misc. If you 141 don't know what to answer at this point, say Y. 142