cmd/internal/objabi, cmd/link: introduce SymKind helper methods

These will be necessary when we start using the new FIPS symbols.
Split into a separate CL so that these refactoring changes can be
tested separate from any FIPS-specific changes.

Passes golang.org/x/tools/cmd/toolstash/buildall.

Change-Id: I73e5873fcb677f1f572f0668b4dc6f3951d822bc
Reviewed-on: https://go-review.googlesource.com/c/go/+/625996
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/src/cmd/internal/objabi/symkind.go b/src/cmd/internal/objabi/symkind.go
index 463b77689c..d4ba5f361e 100644
--- a/src/cmd/internal/objabi/symkind.go
+++ b/src/cmd/internal/objabi/symkind.go
@@ -79,3 +79,19 @@ const (
 	SSEHUNWINDINFO
 	// Update cmd/link/internal/sym/AbiSymKindToSymKind for new SymKind values.
 )
+
+// IsText reports whether t is one of the text kinds.
+func (t SymKind) IsText() bool {
+	return t == STEXT || t == STEXTFIPS
+}
+
+// IsDATA reports whether t is one of the DATA kinds (SDATA or SDATAFIPS,
+// excluding NOPTRDATA, RODATA, BSS, and so on).
+func (t SymKind) IsDATA() bool {
+	return t == SDATA || t == SDATAFIPS
+}
+
+// IsFIPS reports whether t is one fo the FIPS kinds.
+func (t SymKind) IsFIPS() bool {
+	return t == STEXTFIPS || t == SRODATAFIPS || t == SNOPTRDATAFIPS || t == SDATAFIPS
+}