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// Copyright 2009 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.
// Debug arguments, set by -d flag.
package base
// Debug holds the parsed debugging configuration values.
var Debug DebugFlags
// DebugFlags defines the debugging configuration values (see var Debug).
// Each struct field is a different value, named for the lower-case of the field name.
// Each field must be an int or string and must have a `help` struct tag.
//
// The -d option takes a comma-separated list of settings.
// Each setting is name=value; for ints, name is short for name=1.
type DebugFlags struct {
Append int `help:"print information about append compilation"`
Checkptr int `help:"instrument unsafe pointer conversions\n0: instrumentation disabled\n1: conversions involving unsafe.Pointer are instrumented\n2: conversions to unsafe.Pointer force heap allocation" concurrent:"ok"`
Closure int `help:"print information about closure compilation"`
DclStack int `help:"run internal dclstack check"`
Defer int `help:"print information about defer compilation"`
DisableNil int `help:"disable nil checks" concurrent:"ok"`
DumpPtrs int `help:"show Node pointers values in dump output"`
DwarfInl int `help:"print information about DWARF inlined function creation"`
Export int `help:"print export data"`
Fmahash string `help:"hash value for use in debugging platform-dependent multiply-add use" concurrent:"ok"`
GCAdjust int `help:"log adjustments to GOGC" concurrent:"ok"`
GCCheck int `help:"check heap/gc use by compiler" concurrent:"ok"`
GCProg int `help:"print dump of GC programs"`
Gossahash string `help:"hash value for use in debugging the compiler"`
InlFuncsWithClosures int `help:"allow functions with closures to be inlined" concurrent:"ok"`
InlStaticInit int `help:"allow static initialization of inlined calls" concurrent:"ok"`
InterfaceCycles int `help:"allow anonymous interface cycles"`
Libfuzzer int `help:"enable coverage instrumentation for libfuzzer"`
LocationLists int `help:"print information about DWARF location list creation"`
Nil int `help:"print information about nil checks"`
NoOpenDefer int `help:"disable open-coded defers" concurrent:"ok"`
NoRefName int `help:"do not include referenced symbol names in object file" concurrent:"ok"`
PCTab string `help:"print named pc-value table\nOne of: pctospadj, pctofile, pctoline, pctoinline, pctopcdata"`
Panic int `help:"show all compiler panics"`
Reshape int `help:"print information about expression reshaping"`
Shapify int `help:"print information about shaping recursive types"`
Slice int `help:"print information about slice compilation"`
SoftFloat int `help:"force compiler to emit soft-float code" concurrent:"ok"`
SyncFrames int `help:"how many writer stack frames to include at sync points in unified export data"`
TypeAssert int `help:"print information about type assertion inlining"`
TypecheckInl int `help:"eager typechecking of inline function bodies" concurrent:"ok"`
Unified int `help:"enable unified IR construction"`
WB int `help:"print information about write barriers"`
ABIWrap int `help:"print information about ABI wrapper generation"`
MayMoreStack string `help:"call named function before all stack growth checks" concurrent:"ok"`
PGOInlineCDFThreshold string `help:"cummulative threshold percentage for determining call sites as hot candidates for inlining" concurrent:"ok"`
PGOInlineBudget int `help:"inline budget for hot functions" concurrent:"ok"`
PGOInline int `help:"debug profile-guided inlining"`
ConcurrentOk bool // true if only concurrentOk flags seen
}
// DebugSSA is called to set a -d ssa/... option.
// If nil, those options are reported as invalid options.
// If DebugSSA returns a non-empty string, that text is reported as a compiler error.
var DebugSSA func(phase, flag string, val int, valString string) string
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