diff options
Diffstat (limited to '')
-rw-r--r-- | c/src/librdbg/src/i386/rdbg_f.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/c/src/librdbg/src/i386/rdbg_f.c b/c/src/librdbg/src/i386/rdbg_f.c index aeb07fcbe8..b339256e70 100644 --- a/c/src/librdbg/src/i386/rdbg_f.c +++ b/c/src/librdbg/src/i386/rdbg_f.c @@ -5,6 +5,8 @@ * * Synopsis = rdbg/i386/rdbg_f.c * + * $Id$ + * ************************************************************************** */ @@ -128,3 +130,26 @@ CancelSingleStep (CPU_Exception_frame* ctx) ctx->eflags &= ~EFLAGS_TF; ExitForSingleStep-- ; } + +cpuExcHandlerType old_currentExcHandler; +extern void rtems_exception_prologue_50(); + +void connect_rdbg_exception() +{ + interrupt_gate_descriptor *currentIdtEntry; + unsigned limit; + unsigned level; + + /* + * Connect the Exception used to debug + */ + i386_get_info_from_IDTR (¤tIdtEntry, &limit); + + _CPU_ISR_Disable(level); + create_interrupt_gate_descriptor (¤tIdtEntry[50], rtems_exception_prologue_50); + _CPU_ISR_Enable(level); + + old_currentExcHandler = _currentExcHandler; + _currentExcHandler = BreakPointExcHdl ; + +} |