tree ec84adb526e013e66ae26b60bbdc1554b3f28eff
parent bd6c6eb0e46794873a77a5bdf07e2abd3f6b1664
author Christopher Ferris <cferris@google.com> 1476301158 -0700
committer Christopher Ferris <cferris@google.com> 1476301435 -0700

Use process_vm_readv to read memory.

Modify BacktracePtrace::Read to use the process_vm_readv syscall
instead of doing multiple ptrace calls.

Test: Ran the backtrace unit tests on host and on x86_64 emulator.

Change-Id: I24c2787f6713d8eb44312f3aa751d1f6d9d34719