7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
62 lines
1.3 KiB
Go
62 lines
1.3 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package dwarf
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import (
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"os"
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"strconv"
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)
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// DWARF debug info is split into a sequence of compilation units.
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// Each unit has its own abbreviation table and address size.
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type unit struct {
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base Offset // byte offset of header within the aggregate info
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off Offset // byte offset of data within the aggregate info
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data []byte
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atable abbrevTable
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addrsize int
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}
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func (d *Data) parseUnits() ([]unit, os.Error) {
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// Count units.
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nunit := 0
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b := makeBuf(d, "info", 0, d.info, 0)
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for len(b.data) > 0 {
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b.skip(int(b.uint32()))
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nunit++
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}
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if b.err != nil {
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return nil, b.err
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}
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// Again, this time writing them down.
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b = makeBuf(d, "info", 0, d.info, 0)
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units := make([]unit, nunit)
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for i := range units {
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u := &units[i]
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u.base = b.off
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n := b.uint32()
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if vers := b.uint16(); vers != 2 {
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b.error("unsupported DWARF version " + strconv.Itoa(int(vers)))
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break
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}
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atable, err := d.parseAbbrev(b.uint32())
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if err != nil {
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if b.err == nil {
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b.err = err
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}
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break
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}
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u.atable = atable
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u.addrsize = int(b.uint8())
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u.off = b.off
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u.data = b.bytes(int(n - (2 + 4 + 1)))
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}
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if b.err != nil {
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return nil, b.err
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}
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return units, nil
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}
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