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package native
import (
"errors"
"fmt"
"unsafe"
"github.com/go-delve/delve/pkg/elfwriter"
"github.com/go-delve/delve/pkg/proc"
)
func (p *nativeProcess) MemoryMap() ([]proc.MemoryMapEntry, error) {
var memoryMapError error
r := []proc.MemoryMapEntry{}
p.execPtraceFunc(func() {
is64 := true
if isWow64 := uint32(0); _IsWow64Process(p.os.hProcess, &isWow64) != 0 {
if isWow64 != 0 {
is64 = false
}
}
maxaddr := uint64(1 << 48) // windows64 uses only 48 bit addresses
if !is64 {
maxaddr = uint64(^uint32(0))
}
var meminfo _MEMORY_BASIC_INFORMATION
for addr := uint64(0); addr < maxaddr; addr += meminfo.RegionSize {
size := _VirtualQueryEx(p.os.hProcess, uintptr(addr), &meminfo, unsafe.Sizeof(meminfo))
if size == 0 {
// size == 0 is an error and the only error returned by VirtualQueryEx
// is when addr is above the highest address allocated for the
// application.
return
}
if size != unsafe.Sizeof(meminfo) {
memoryMapError = fmt.Errorf("bad size returned by _VirtualQueryEx: %d (expected %d)", size, unsafe.Sizeof(meminfo))
return
}
if addr+meminfo.RegionSize <= addr {
// this shouldn't happen
memoryMapError = errors.New("VirtualQueryEx wrapped around the address space or stuck")
return
}
if meminfo.State == _MEM_FREE || meminfo.State == _MEM_RESERVE {
continue
}
if meminfo.Protect&_PAGE_GUARD != 0 {
// reading from this range will result in an error.
continue
}
var mme proc.MemoryMapEntry
mme.Addr = addr
mme.Size = meminfo.RegionSize
switch meminfo.Protect & 0xff {
case _PAGE_EXECUTE:
mme.Exec = true
case _PAGE_EXECUTE_READ:
mme.Exec = true
mme.Read = true
case _PAGE_EXECUTE_READWRITE:
mme.Exec = true
mme.Read = true
mme.Write = true
case _PAGE_EXECUTE_WRITECOPY:
mme.Exec = true
mme.Read = true
case _PAGE_NOACCESS:
case _PAGE_READONLY:
mme.Read = true
case _PAGE_READWRITE:
mme.Read = true
mme.Write = true
case _PAGE_WRITECOPY:
mme.Read = true
}
r = append(r, mme)
}
})
return r, memoryMapError
}
func (p *nativeProcess) DumpProcessNotes(notes []elfwriter.Note, threadDone func()) (threadsDone bool, out []elfwriter.Note, err error) {
return false, notes, nil
}
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