golang/delve
1
0
Fork 0
mirror of https://github.com/go-delve/delve.git synced 2025-10-29 17:56:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

Move print goroutine info into command

Browse Source 
* DebuggedProcess method: `PrintGoroutinesInfo` -> `GoroutinesInfo`
* `goroutines` command in command/command.go now responsible for
  printing info.
This commit is contained in:
Derek Parker
2015-04-09 09:53:02 -05:00
parent 22ac63f050
commit 42a57ad285
3 changed files with 60 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

49
proctl/variables.go
View File

@ -3,6 +3,7 @@ package proctl
import (
"bytes"
"debug/dwarf"
"debug/gosym"
"encoding/binary"
"fmt"
"strconv"
@ -32,8 +33,11 @@ type M struct {
}
type G struct {
id int
pc uint64
Id int
PC uint64
File string
Line int
Func *gosym.Func
}
const ptrsize uintptr = unsafe.Sizeof(int(1))
@ -205,37 +209,6 @@ func parseAllMPtr(dbp *DebuggedProcess, reader *dwarf.Reader) (uint64, error) {
return uint64(addr), nil
}
func (dbp *DebuggedProcess) PrintGoroutinesInfo() error {
reader := dbp.dwarf.Reader()
allglen, err := allglenval(dbp, reader)
if err != nil {
return err
}
reader.Seek(0)
allgentryaddr, err := addressFor(dbp, "runtime.allg", reader)
if err != nil {
return err
}
fmt.Printf("[%d goroutines]\n", allglen)
faddr, err := dbp.CurrentThread.readMemory(uintptr(allgentryaddr), ptrsize)
allg := binary.LittleEndian.Uint64(faddr)
for i := uint64(0); i < allglen; i++ {
g, err := parseG(dbp, allg+(i*uint64(ptrsize)), reader)
if err != nil {
return err
}
f, l, fn := dbp.goSymTable.PCToLine(g.pc)
fname := ""
if fn != nil {
fname = fn.Name
}
fmt.Printf("Goroutine %d - %s:%d %s\n", g.id, f, l, fname)
}
return nil
}
func parseG(dbp *DebuggedProcess, addr uint64, reader *dwarf.Reader) (*G, error) {
gaddrbytes, err := dbp.CurrentThread.readMemory(uintptr(addr), ptrsize)
if err != nil {
@ -263,7 +236,15 @@ func parseG(dbp *DebuggedProcess, addr uint64, reader *dwarf.Reader) (*G, error)
return nil, fmt.Errorf("error reading sched %s", err)
}
gopc := binary.LittleEndian.Uint64(schedbytes)
return &G{id: int(binary.LittleEndian.Uint64(goidbytes)), pc: gopc}, nil
f, l, fn := dbp.goSymTable.PCToLine(gopc)
g := &G{
Id: int(binary.LittleEndian.Uint64(goidbytes)),
PC: gopc,
File: f,
Line: l,
Func: fn,
}
return g, nil
}
func allglenval(dbp *DebuggedProcess, reader *dwarf.Reader) (uint64, error) {