[lldb-dev] Critique of Linux DoReadMemory implementation
mg11 at csr.com
Tue Feb 25 01:31:54 PST 2014
Is there a good reason why the DoReadMemory function of
Linux/ProcessMonitor.cpp is implemented using multiple calls of
ptrace(PTRACE_PEEKDATA, ...) ?
An easier, and less CPU-intensive way is to read the memory using the proc
filesystem. The inferior's memory will be available in the file
int fd = open("/proc/<pid>/mem", O_RDONLY);
ssize_t bytes = read(fd, buf, count);
The read-of-procfs just seems more succinct to me, so I wondered what the
rationale was for not using this.
Member of the CSR plc group of companies. CSR plc registered in England and Wales, registered number 4187346, registered office Churchill House, Cambridge Business Park, Cowley Road, Cambridge, CB4 0WZ, United Kingdom
More information can be found at www.csr.com. Keep up to date with CSR on our technical blog, www.csr.com/blog, CSR people blog, www.csr.com/people, YouTube, www.youtube.com/user/CSRplc, Facebook, www.facebook.com/pages/CSR/191038434253534, or follow us on Twitter at www.twitter.com/CSR_plc.
New for 2014, you can now access the wide range of products powered by aptX at www.aptx.com.
More information about the lldb-dev