| // Inferno utils/5c/list.c |
| // http://code.google.com/p/inferno-os/source/browse/utils/5c/list.c |
| // |
| // Copyright © 1994-1999 Lucent Technologies Inc. All rights reserved. |
| // Portions Copyright © 1995-1997 C H Forsyth (forsyth@terzarima.net) |
| // Portions Copyright © 1997-1999 Vita Nuova Limited |
| // Portions Copyright © 2000-2007 Vita Nuova Holdings Limited (www.vitanuova.com) |
| // Portions Copyright © 2004,2006 Bruce Ellis |
| // Portions Copyright © 2005-2007 C H Forsyth (forsyth@terzarima.net) |
| // Revisions Copyright © 2000-2007 Lucent Technologies Inc. and others |
| // Portions Copyright © 2009 The Go Authors. All rights reserved. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a copy |
| // of this software and associated documentation files (the "Software"), to deal |
| // in the Software without restriction, including without limitation the rights |
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| // copies of the Software, and to permit persons to whom the Software is |
| // furnished to do so, subject to the following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included in |
| // all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
| // THE SOFTWARE. |
| |
| package obj |
| |
| // Copyright 2013 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // This file defines the IDs for PCDATA and FUNCDATA instructions |
| // in Go binaries. It is included by assembly sources, so it must |
| // be written using #defines. |
| // |
| // The Go compiler also #includes this file, for now. |
| // |
| // symtab.go also contains a copy of these constants. |
| |
| // Pseudo-assembly statements. |
| |
| // GO_ARGS, GO_RESULTS_INITIALIZED, and NO_LOCAL_POINTERS are macros |
| // that communicate to the runtime information about the location and liveness |
| // of pointers in an assembly function's arguments, results, and stack frame. |
| // This communication is only required in assembly functions that make calls |
| // to other functions that might be preempted or grow the stack. |
| // NOSPLIT functions that make no calls do not need to use these macros. |
| |
| // GO_ARGS indicates that the Go prototype for this assembly function |
| // defines the pointer map for the function's arguments. |
| // GO_ARGS should be the first instruction in a function that uses it. |
| // It can be omitted if there are no arguments at all. |
| // GO_ARGS is inserted implicitly by the linker for any function |
| // that also has a Go prototype and therefore is usually not necessary |
| // to write explicitly. |
| |
| // GO_RESULTS_INITIALIZED indicates that the assembly function |
| // has initialized the stack space for its results and that those results |
| // should be considered live for the remainder of the function. |
| |
| // NO_LOCAL_POINTERS indicates that the assembly function stores |
| // no pointers to heap objects in its local stack variables. |
| |
| // ArgsSizeUnknown is set in Func.argsize to mark all functions |
| // whose argument size is unknown (C vararg functions, and |
| // assembly code without an explicit specification). |
| // This value is generated by the compiler, assembler, or linker. |
| const ( |
| PCDATA_StackMapIndex = 0 |
| FUNCDATA_ArgsPointerMaps = 0 |
| FUNCDATA_LocalsPointerMaps = 1 |
| FUNCDATA_DeadValueMaps = 2 |
| ArgsSizeUnknown = -0x80000000 |
| ) |
