mirror of
https://github.com/sliverarmory/reflektor
synced 2026-08-25 09:14:48 +00:00
moloch--
26 lines
564 B
Go
26 lines
564 B
Go
//go:build linux && !android && arm && arm.7
|
|
|
|
package linuxmem
|
|
|
|
import (
|
|
"fmt"
|
|
"unsafe"
|
|
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
// Linux reserves this ARM-private syscall number for cacheflush.
|
|
const linuxARMCacheflush = 0x0f0002
|
|
|
|
func flushMappedInstructionCache(mapping []byte) error {
|
|
if len(mapping) == 0 {
|
|
return nil
|
|
}
|
|
start := uintptr(unsafe.Pointer(unsafe.SliceData(mapping)))
|
|
_, _, errno := unix.Syscall(linuxARMCacheflush, start, start+uintptr(len(mapping)), 0)
|
|
if errno != 0 {
|
|
return fmt.Errorf("cacheflush mapped ELF image: %w", errno)
|
|
}
|
|
return nil
|
|
}
|