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Diffstat (limited to 'src/cmd/compile/internal/base/debug.go')
| -rw-r--r-- | src/cmd/compile/internal/base/debug.go | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/base/debug.go b/src/cmd/compile/internal/base/debug.go new file mode 100644 index 0000000..b105e46 --- /dev/null +++ b/src/cmd/compile/internal/base/debug.go @@ -0,0 +1,53 @@ +// 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"` + 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"` + 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"` + GCProg int `help:"print dump of GC programs"` + InlFuncsWithClosures int `help:"allow functions with closures to be inlined"` + 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"` + PCTab string `help:"print named pc-value table\nOne of: pctospadj, pctofile, pctoline, pctoinline, pctopcdata"` + Panic int `help:"show all compiler panics"` + Slice int `help:"print information about slice compilation"` + SoftFloat int `help:"force compiler to emit soft-float code"` + 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"` + Unified int `help:"enable unified IR construction"` + UnifiedQuirks int `help:"enable unified IR construction's quirks mode"` + 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"` + + Any bool // set when any of the debug flags have been set +} + +// 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 |