github.com/rohankumardubey/syslog-redirector-golang@v0.0.0-20140320174030-4859f03d829a/src/cmd/ld/doc.go (about) 1 // Copyright 2009 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 // +build ignore 6 7 /* 8 9 Ld is the portable code for a modified version of the Plan 9 linker. The original is documented at 10 11 http://plan9.bell-labs.com/magic/man2html/1/8l 12 13 It reads object files (.5, .6, or .8 files) and writes a binary named for the 14 architecture (5.out, 6.out, 8.out) by default (if $GOOS is windows, a .exe suffix 15 will be appended). 16 17 Major changes include: 18 - support for ELF, Mach-O and PE binary files 19 - support for segmented stacks (this feature is implemented here, not in the compilers). 20 21 Original options are listed on the manual page linked above. 22 23 Usage: 24 go tool 6l [flags] mainObj 25 Substitute 6l with 8l or 5l as appropriate. 26 27 Options new in this version: 28 29 -d 30 Elide the dynamic linking header. With this option, the binary 31 is statically linked and does not refer to a dynamic linker. Without this option 32 (the default), the binary's contents are identical but it is loaded with a dynamic 33 linker. This flag cannot be used when $GOOS is windows. 34 -H darwin (only in 6l/8l) 35 Write Apple Mach-O binaries (default when $GOOS is darwin) 36 -H dragonfly (only in 6l/8l) 37 Write DragonFly ELF binaries (default when $GOOS is dragonfly) 38 -H linux 39 Write Linux ELF binaries (default when $GOOS is linux) 40 -H freebsd 41 Write FreeBSD ELF binaries (default when $GOOS is freebsd) 42 -H netbsd 43 Write NetBSD ELF binaries (default when $GOOS is netbsd) 44 -H openbsd (only in 6l/8l) 45 Write OpenBSD ELF binaries (default when $GOOS is openbsd) 46 -H windows (only in 6l/8l) 47 Write Windows PE32+ Console binaries (default when $GOOS is windows) 48 -H windowsgui (only in 6l/8l) 49 Write Windows PE32+ GUI binaries 50 -I interpreter 51 Set the ELF dynamic linker to use. 52 -L dir1 -L dir2 53 Search for libraries (package files) in dir1, dir2, etc. 54 The default is the single location $GOROOT/pkg/$GOOS_$GOARCH. 55 -r dir1:dir2:... 56 Set the dynamic linker search path when using ELF. 57 -s 58 Omit the symbol table and debug information. 59 -V 60 Print the linker version. 61 -X symbol value 62 Set the value of an otherwise uninitialized string variable. 63 The symbol name should be of the form importpath.name, 64 as displayed in the symbol table printed by "go tool nm". 65 -race 66 Link with race detection libraries. 67 -B value 68 Add a NT_GNU_BUILD_ID note when using ELF. The value 69 should start with 0x and be an even number of hex digits. 70 -Z 71 Zero stack on function entry. This is expensive but it might 72 be useful in cases where you are suffering from false positives 73 during garbage collection and are willing to trade the CPU time 74 for getting rid of the false positives. 75 NOTE: it only eliminates false positives caused by other function 76 calls, not false positives caused by dead temporaries stored in 77 the current function call. 78 -linkmode argument 79 Set the linkmode. The argument must be one of 80 internal, external, or auto. The default is auto. 81 This sets the linking mode as described in 82 ../cgo/doc.go. 83 -tmpdir dir 84 Set the location to use for any temporary files. The 85 default is a newly created directory that is removed 86 after the linker completes. Temporary files are only 87 used in external linking mode. 88 -extld name 89 Set the name of the external linker to use in external 90 linking mode. The default is "gcc". 91 -extldflags flags 92 Set space-separated trailing flags to pass to the 93 external linker in external linking mode. The default 94 is to not pass any additional trailing flags. 95 */ 96 package main