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

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For #59670

Change-Id: If2b05b1ba30b607b518577b0e11ba5a0b07999c5
GitHub-Last-Rev: a664aa18b5
GitHub-Pull-Request: golang/go#64906
Reviewed-on: https://go-review.googlesource.com/c/go/+/553276
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
This commit is contained in:
qiulaidongfeng 2024-01-06 07:12:43 +00:00 committed by Gopher Robot
parent a557f9dcd7
commit 40fab294de
6 changed files with 11 additions and 12 deletions
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7
src/cmd/link/internal/ld/data.go
View File

@ -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())

4
src/cmd/link/internal/ld/lib.go
View File

@ -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

2
src/cmd/link/internal/ld/pcln.go
View File

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

5
src/cmd/link/internal/wasm/asm.go
View File

@ -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
}

2
src/internal/abi/symtab.go
View File

@ -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

3
src/runtime/symtab.go
View File

@ -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.