diff options
Diffstat (limited to 'gdb/hppa-tdep.c')
| -rw-r--r-- | gdb/hppa-tdep.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c index 8e86367..9431925 100644 --- a/gdb/hppa-tdep.c +++ b/gdb/hppa-tdep.c @@ -2264,30 +2264,6 @@ unwind_command (char *exp, int from_tty) pin (Total_frame_size); } -void -hppa_skip_permanent_breakpoint (void) -{ - /* To step over a breakpoint instruction on the PA takes some - fiddling with the instruction address queue. - - When we stop at a breakpoint, the IA queue front (the instruction - we're executing now) points at the breakpoint instruction, and - the IA queue back (the next instruction to execute) points to - whatever instruction we would execute after the breakpoint, if it - were an ordinary instruction. This is the case even if the - breakpoint is in the delay slot of a branch instruction. - - Clearly, to step past the breakpoint, we need to set the queue - front to the back. But what do we put in the back? What - instruction comes after that one? Because of the branch delay - slot, the next insn is always at the back + 4. */ - write_register (HPPA_PCOQ_HEAD_REGNUM, read_register (HPPA_PCOQ_TAIL_REGNUM)); - write_register (HPPA_PCSQ_HEAD_REGNUM, read_register (HPPA_PCSQ_TAIL_REGNUM)); - - write_register (HPPA_PCOQ_TAIL_REGNUM, read_register (HPPA_PCOQ_TAIL_REGNUM) + 4); - /* We can leave the tail's space the same, since there's no jump. */ -} - int hppa_pc_requires_run_before_use (CORE_ADDR pc) { |