[Bug runtime/15932] New: %m/%M should have a variant that reads user memory (instead of kernel memory)

[dsmith at redhat dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=15932

            Bug ID: 15932
           Summary: %m/%M should have a variant that reads user memory
                    (instead of kernel memory)
           Product: systemtap
           Version: unspecified
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: runtime
          Assignee: systemtap at sourceware dot org
          Reporter: dsmith at redhat dot com

While working on bug #15928, I found that the testcase was using %m to read
user memory instead of kernel memory. We should provide a way to dump user
memory like we are able to dump kernel memory.

One possible solution would be to use the '#' flag, which means "select the
alternate form". So, a format string of "%#m" would read 1 byte of user memory.

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