cmd/link,runtime: merge minfunc const info internal/abi

For #59670

Change-Id: If2b05b1ba30b607b518577b0e11ba5a0b07999c5
GitHub-Last-Rev: a664aa1
GitHub-Pull-Request: #64906
Reviewed-on: https://go-review.googlesource.com/c/go/+/553276
Reviewed-by: Keith Randall <[email protected]>
Reviewed-by: Keith Randall <[email protected]>
Auto-Submit: Keith Randall <[email protected]>
Reviewed-by: Cherry Mui <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>

Author: qiulaidongfeng

src/cmd/link/internal/ld/data.go

@@ -43,6 +43,7 @@ import (
 	"debug/elf"
 	"encoding/binary"
 	"fmt"
+	"internal/abi"
 	"log"
 	"os"
 	"sort"
@@ -2556,8 +2557,8 @@ func assignAddress(ctxt *Link, sect *sym.Section, n int, s loader.Sym, va uint64
 		sect.Align = align
 	}
 
-	funcsize := uint64(MINFUNC) // spacing required for findfunctab
-	if ldr.SymSize(s) > MINFUNC {
+	funcsize := uint64(abi.MINFUNC) // spacing required for findfunctab
+	if ldr.SymSize(s) > abi.MINFUNC {
 		funcsize = uint64(ldr.SymSize(s))
 	}
 
@@ -2611,7 +2612,7 @@ func assignAddress(ctxt *Link, sect *sym.Section, n int, s loader.Sym, va uint64
 				// Assign its address directly in order to be the
 				// first symbol of this new section.
 				ntext.SetType(sym.STEXT)
-				ntext.SetSize(int64(MINFUNC))
+				ntext.SetSize(int64(abi.MINFUNC))
 				ntext.SetOnList(true)
 				ntext.SetAlign(sectAlign)
 				ctxt.tramps = append(ctxt.tramps, ntext.Sym())

src/cmd/link/internal/ld/lib.go

@@ -273,10 +273,6 @@ var (
 	symSize int32
 )
 
-const (
-	MINFUNC = 16 // minimum size for a function
-)
-
 // Symbol version of ABIInternal symbols. It is sym.SymVerABIInternal if ABI wrappers
 // are used, 0 otherwise.
 var abiInternalVer = sym.SymVerABIInternal

src/cmd/link/internal/ld/pcln.go

@@ -827,7 +827,7 @@ func expandGoroot(s string) string {
 }
 
 const (
-	BUCKETSIZE    = 256 * MINFUNC
+	BUCKETSIZE    = 256 * abi.MINFUNC
 	SUBBUCKETS    = 16
 	SUBBUCKETSIZE = BUCKETSIZE / SUBBUCKETS
 	NOIDX         = 0x7fffffff

src/cmd/link/internal/wasm/asm.go

@@ -14,6 +14,7 @@ import (
 	"cmd/link/internal/sym"
 	"encoding/binary"
 	"fmt"
+	"internal/abi"
 	"internal/buildcfg"
 	"io"
 	"regexp"
@@ -154,8 +155,8 @@ func assignAddress(ldr *loader.Loader, sect *sym.Section, n int, s loader.Sym, v
 	// However, there is no PC register, only PC_F and PC_B. PC_F denotes the function,
 	// PC_B the resume point inside of that function. The entry of the function has PC_B = 0.
 	ldr.SetSymSect(s, sect)
-	ldr.SetSymValue(s, int64(funcValueOffset+va/ld.MINFUNC)<<16) // va starts at zero
-	va += uint64(ld.MINFUNC)
+	ldr.SetSymValue(s, int64(funcValueOffset+va/abi.MINFUNC)<<16) // va starts at zero
+	va += uint64(abi.MINFUNC)
 	return sect, n, va
 }
 

src/internal/abi/symtab.go

@@ -105,3 +105,5 @@ const (
 	// Like UnsafePointRestart1, but back to function entry if async preempted.
 	UnsafePointRestartAtEntry = -5
 )
+
+const MINFUNC = 16 // minimum size for a function

src/runtime/symtab.go

@@ -497,8 +497,7 @@ type textsect struct {
 	baseaddr uintptr // relocated section address
 }
 
-const minfunc = 16                 // minimum function size
-const pcbucketsize = 256 * minfunc // size of bucket in the pc->func lookup table
+const pcbucketsize = 256 * abi.MINFUNC // size of bucket in the pc->func lookup table
 
 // findfuncbucket is an array of these structures.
 // Each bucket represents 4096 bytes of the text segment.