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| author | sos22@douglas.cl.cam.ac.uk <sos22@douglas.cl.cam.ac.uk> | 2005-02-11 10:24:12 +0000 |
|---|---|---|
| committer | sos22@douglas.cl.cam.ac.uk <sos22@douglas.cl.cam.ac.uk> | 2005-02-11 10:24:12 +0000 |
| commit | 36a9323ec00c7cd9264a957b74fe8decb227f239 (patch) | |
| tree | 1976c463ae25d48a60c67c0c13b890e2faa7a352 /xen/include/asm-x86/debugger.h | |
| parent | 4e88d35838b90820c4b7bdbf7ba2704ed9cf555f (diff) | |
| download | xen-36a9323ec00c7cd9264a957b74fe8decb227f239.tar.gz xen-36a9323ec00c7cd9264a957b74fe8decb227f239.tar.bz2 xen-36a9323ec00c7cd9264a957b74fe8decb227f239.zip | |
bitkeeper revision 1.1178 (420c87ccD2VdHFZVGUqHR4Zd2yI1mg)
After a fatal trap, we want to debug whatever caused the trap rather than the trap
handler. Fix things up accordingly.
Also add some documentation while I'm here.
Signed-off-by: sos22@cl.cam.ac.uk.
Diffstat (limited to 'xen/include/asm-x86/debugger.h')
| -rw-r--r-- | xen/include/asm-x86/debugger.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/xen/include/asm-x86/debugger.h b/xen/include/asm-x86/debugger.h index dc018f5bdb..62828329b8 100644 --- a/xen/include/asm-x86/debugger.h +++ b/xen/include/asm-x86/debugger.h @@ -17,6 +17,14 @@ * hook to drop into a debug session. It can also be used to hook off * deliberately caused traps (which you then handle and return non-zero) * but really these should be hooked off 'debugger_trap_entry'. + * + * 3. debugger_trap_immediate(): + * Called if we want to drop into a debugger now. This is essentially the + * same as debugger_trap_fatal, except that we use the current register state + * rather than the state which was in effect when we took the trap. + * Essentially, if we're dying because of an unhandled exception, we call + * debugger_trap_fatal; if we're dying because of a panic() we call + * debugger_trap_immediate(). */ #ifndef __X86_DEBUGGER_H__ |