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 /* 6 Link, typically invoked as ``go tool link,'' reads the Go archive or object 7 for a package main, along with its dependencies, and combines them 8 into an executable binary. 9 10 Command Line 11 12 Usage: 13 14 go tool link [flags] main.a 15 16 Flags: 17 18 -B note 19 Add an ELF_NT_GNU_BUILD_ID note when using ELF. 20 The value should start with 0x and be an even number of hex digits. 21 -D address 22 Set data segment address. 23 -E entry 24 Set entry symbol name. 25 -H type 26 Set executable format type. 27 The default format is inferred from GOOS and GOARCH. 28 On Windows, -H windowsgui writes a "GUI binary" instead of a "console binary." 29 -I interpreter 30 Set the ELF dynamic linker to use. 31 -L dir1 -L dir2 32 Search for imported packages in dir1, dir2, etc, 33 after consulting $GOROOT/pkg/$GOOS_$GOARCH. 34 -R quantum 35 Set address rounding quantum. 36 -T address 37 Set text segment address. 38 -V 39 Print linker version and exit. 40 -X importpath.name=value 41 Set the value of the string variable in importpath named name to value. 42 This is only effective if the variable is declared in the source code either uninitialized 43 or initialized to a constant string expression. -X will not work if the initializer makes 44 a function call or refers to other variables. 45 Note that before Go 1.5 this option took two separate arguments. 46 -a 47 Disassemble output. 48 -buildid id 49 Record id as Go toolchain build id. 50 -buildmode mode 51 Set build mode (default exe). 52 -c 53 Dump call graphs. 54 -compressdwarf 55 Compress DWARF if possible (default true). 56 -cpuprofile file 57 Write CPU profile to file. 58 -d 59 Disable generation of dynamic executables. 60 The emitted code is the same in either case; the option 61 controls only whether a dynamic header is included. 62 The dynamic header is on by default, even without any 63 references to dynamic libraries, because many common 64 system tools now assume the presence of the header. 65 -debugtramp int 66 Debug trampolines. 67 -dumpdep 68 Dump symbol dependency graph. 69 -extar ar 70 Set the external archive program (default "ar"). 71 Used only for -buildmode=c-archive. 72 -extld linker 73 Set the external linker (default "clang" or "gcc"). 74 -extldflags flags 75 Set space-separated flags to pass to the external linker. 76 -f 77 Ignore version mismatch in the linked archives. 78 -g 79 Disable Go package data checks. 80 -importcfg file 81 Read import configuration from file. 82 In the file, set packagefile, packageshlib to specify import resolution. 83 -installsuffix suffix 84 Look for packages in $GOROOT/pkg/$GOOS_$GOARCH_suffix 85 instead of $GOROOT/pkg/$GOOS_$GOARCH. 86 -k symbol 87 Set field tracking symbol. Use this flag when GOEXPERIMENT=fieldtrack is set. 88 -libgcc file 89 Set name of compiler support library. 90 This is only used in internal link mode. 91 If not set, default value comes from running the compiler, 92 which may be set by the -extld option. 93 Set to "none" to use no support library. 94 -linkmode mode 95 Set link mode (internal, external, auto). 96 This sets the linking mode as described in cmd/cgo/doc.go. 97 -linkshared 98 Link against installed Go shared libraries (experimental). 99 -memprofile file 100 Write memory profile to file. 101 -memprofilerate rate 102 Set runtime.MemProfileRate to rate. 103 -msan 104 Link with C/C++ memory sanitizer support. 105 -n 106 Dump symbol table. 107 -o file 108 Write output to file (default a.out, or a.out.exe on Windows). 109 -pluginpath path 110 The path name used to prefix exported plugin symbols. 111 -r dir1:dir2:... 112 Set the ELF dynamic linker search path. 113 -race 114 Link with race detection libraries. 115 -s 116 Omit the symbol table and debug information. 117 -shared 118 Generated shared object (implies -linkmode external; experimental). 119 -tmpdir dir 120 Write temporary files to dir. 121 Temporary files are only used in external linking mode. 122 -u 123 Reject unsafe packages. 124 -v 125 Print trace of linker operations. 126 -w 127 Omit the DWARF symbol table. 128 */ 129 package main 130