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Diffstat (limited to 'src/cmd/link/internal/sym/segment.go')
-rw-r--r-- | src/cmd/link/internal/sym/segment.go | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/cmd/link/internal/sym/segment.go b/src/cmd/link/internal/sym/segment.go new file mode 100644 index 0000000..97853b9 --- /dev/null +++ b/src/cmd/link/internal/sym/segment.go @@ -0,0 +1,66 @@ +// Inferno utils/8l/asm.c +// https://bitbucket.org/inferno-os/inferno-os/src/master/utils/8l/asm.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 sym + +// Terrible but standard terminology. +// A segment describes a block of file to load into memory. +// A section further describes the pieces of that block for +// use in debuggers and such. + +type Segment struct { + Rwx uint8 // permission as usual unix bits (5 = r-x etc) + Vaddr uint64 // virtual address + Length uint64 // length in memory + Fileoff uint64 // file offset + Filelen uint64 // length on disk + Sections []*Section +} + +type Section struct { + Rwx uint8 + Extnum int16 + Align int32 + Name string + Vaddr uint64 + Length uint64 + Seg *Segment + Elfsect interface{} // an *ld.ElfShdr + Reloff uint64 + Rellen uint64 + // Relcount is the number of *host* relocations applied to this section + // (when external linking). + // Incremented atomically on multiple goroutines. + // Note: this may differ from number of Go relocations, as one Go relocation + // may turn into multiple host relocations. + Relcount uint32 + Sym LoaderSym // symbol for the section, if any + Index uint16 // each section has a unique index, used internally +} |