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9 commits

Author SHA1 Message Date
Mark Johnston
291624fdf6 Invoke the DTrace trap handler before calling trap() on amd64. This matches 
the upstream implementation and helps ensure that a trap induced by tracing
fbt::trap:entry is handled without recursively generating another trap.

This makes it possible to run most (but not all) of the DTrace tests under
common/safety/ without triggering a kernel panic.

Submitted by:	Anton Rang <anton.rang@isilon.com> (original version)
Phabric:	D95
 2014-07-14 04:38:17 +00:00
Justin Hibbits
594ce9ad6f ELF PowerPC64 ABI puts the LR save word at 16 byte offset, not 8. 2013-10-25 00:17:12 +00:00
Justin Hibbits
7fb93a40c2 Whitespace cleanup. 2013-09-02 23:22:05 +00:00
Justin Hibbits
f0bd82a11b Fixes for DTrace on PowerPC: 
- Implement dtrace_getarg()
- Sync fbt with x86, and fix a typo.
- Pull in the time synchronization code from amd64.
 2013-08-31 16:30:20 +00:00
Justin Hibbits
7ccb72b31f Make dtrace_copy() actually work on PowerPC. Although unused currently, 
it may be used in the future by dtrace.
 2013-08-22 02:54:20 +00:00
Justin Hibbits
cc117e2773 Fix some ppc64 dtrace bugs, and enable systrace_freebsd32 for ppc64. 2013-08-19 05:10:46 +00:00
Justin Hibbits
80a5635c8b Add FBT for PowerPC DTrace. Also, clean up the DTrace assembly code, 
much of which is not necessary for PowerPC.

The FBT module can likely be factored into 3 separate files: common,
intel, and powerpc, rather than duplicating most of the code between
the x86 and PowerPC flavors.

All DTrace modules for PowerPC will be MFC'd together once Fasttrap is
completed.
 2013-03-18 05:30:18 +00:00
Justin Hibbits
7e7a9efdb5 Fix the PowerPC DTrace copy functions. The kernel doesn't hold the same view to 
the user map, so use the md copy in/out functions provided by the kernel.

MFC with:	r242723
 2013-02-03 00:19:34 +00:00
Justin Hibbits
c757049235 Implement DTrace for PowerPC. This includes both 32-bit and 64-bit. 
There is one known issue:  Some probes will display an error message along the
lines of:  "Invalid address (0)"

I tested this with both a simple dtrace probe and dtruss on a few different
binaries on 32-bit.  I only compiled 64-bit, did not run it, but I don't expect
problems without the modules loaded.  Volunteers are welcome.

MFC after:	1 month
 2012-11-07 23:45:09 +00:00