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) 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 BINFMT_AOUT 63 tristate "Kernel support for a.out and ECOFF binaries" 64 depends on ARCH_SUPPORTS_AOUT && \ 65 (X86_32 || ALPHA || ARM || M68K) 66 ---help--- 67 A.out (Assembler.OUTput) is a set of formats for libraries and 68 executables used in the earliest versions of UNIX. Linux used 69 the a.out formats QMAGIC and ZMAGIC until they were replaced 70 with the ELF format. 71 72 The conversion to ELF started in 1995. This option is primarily 73 provided for historical interest and for the benefit of those 74 who need to run binaries from that era. 75 76 Most people should answer N here. If you think you may have 77 occasional use for this format, enable module support above 78 and answer M here to compile this support as a module called 79 binfmt_aout. 80 81 If any crucial components of your system (such as /sbin/init 82 or /lib/ld.so) are still in a.out format, you will have to 83 say Y here. 84 85config OSF4_COMPAT 86 bool "OSF/1 v4 readv/writev compatibility" 87 depends on ALPHA && BINFMT_AOUT 88 help 89 Say Y if you are using OSF/1 binaries (like Netscape and Acrobat) 90 with v4 shared libraries freely available from Compaq. If you're 91 going to use shared libraries from Tru64 version 5.0 or later, say N. 92 93config BINFMT_EM86 94 tristate "Kernel support for Linux/Intel ELF binaries" 95 depends on ALPHA 96 ---help--- 97 Say Y here if you want to be able to execute Linux/Intel ELF 98 binaries just like native Alpha binaries on your Alpha machine. For 99 this to work, you need to have the emulator /usr/bin/em86 in place. 100 101 You can get the same functionality by saying N here and saying Y to 102 "Kernel support for MISC binaries". 103 104 You may answer M to compile the emulation support as a module and 105 later load the module when you want to use a Linux/Intel binary. The 106 module will be called binfmt_em86. If unsure, say Y. 107 108config BINFMT_SOM 109 tristate "Kernel support for SOM binaries" 110 depends on PARISC && HPUX 111 help 112 SOM is a binary executable format inherited from HP/UX. Say 113 Y here to be able to load and execute SOM binaries directly. 114 115config BINFMT_MISC 116 tristate "Kernel support for MISC binaries" 117 ---help--- 118 If you say Y here, it will be possible to plug wrapper-driven binary 119 formats into the kernel. You will like this especially when you use 120 programs that need an interpreter to run like Java, Python, .NET or 121 Emacs-Lisp. It's also useful if you often run DOS executables under 122 the Linux DOS emulator DOSEMU (read the DOSEMU-HOWTO, available from 123 <http://www.tldp.org/docs.html#howto>). Once you have 124 registered such a binary class with the kernel, you can start one of 125 those programs simply by typing in its name at a shell prompt; Linux 126 will automatically feed it to the correct interpreter. 127 128 You can do other nice things, too. Read the file 129 <file:Documentation/binfmt_misc.txt> to learn how to use this 130 feature, <file:Documentation/java.txt> for information about how 131 to include Java support. and <file:Documentation/mono.txt> for 132 information about how to include Mono-based .NET support. 133 134 To use binfmt_misc, you will need to mount it: 135 mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc 136 137 You may say M here for module support and later load the module when 138 you have use for it; the module is called binfmt_misc. If you 139 don't know what to answer at this point, say Y. 140