[Bug uprobes/10836] uprobes-provided pt_regs* are unreliable

[roland at gnu dot org]

------- Additional Comments From roland at gnu dot org  2009-10-27 18:40 -------
"synthesized pt_regs" is a loony concept considered only by systemtap.
It has no place in the general utrace world.  user_regset is there, it's what
should be used.  The only reason pt_regs is passed into some callbacks is
because the pointer is handy and in some circumstances a few of its fields might
be sufficiently useful for particular code that knows exactly what it is looking
at.  General-case code can use the asm/syscall.h macros on it, for example.  For
any generalized register access, user_regset is the only right thing to use.

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http://sourceware.org/bugzilla/show_bug.cgi?id=10836

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