diff options
| author | Jason Wessel <[email protected]> | 2010-05-20 21:04:30 -0500 |
|---|---|---|
| committer | Jason Wessel <[email protected]> | 2010-05-20 21:04:30 -0500 |
| commit | 031acd8c42edd61070f81c51edc89e83147a3d0e (patch) | |
| tree | f0f848ca6b19ec049b00a430bb0fba1035acb76b /tools/perf/util/trace-event-scripting.c | |
| parent | 0b4b3827db386ec6034a5aba1261025b039440c2 (diff) | |
x86,kgdb: Implement early hardware breakpoint debugging
It is not possible to use the hw_breakpoint.c API prior to mm_init(),
but it is possible to use hardware breakpoints with the kernel
debugger.
Prior to smp_init() it is possible to simply write to the dr registers
of the boot cpu directly. This can be used up until the
kgdb_arch_late() is invoked, at which point the standard hw_breakpoint.c
API will get used.
CC: Frederic Weisbecker <[email protected]>
CC: Ingo Molnar <[email protected]>
Signed-off-by: Jason Wessel <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions