diff options
Diffstat (limited to 'gdb/gdbarch.h')
| -rw-r--r-- | gdb/gdbarch.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h index 950b7ca..f7b0355 100644 --- a/gdb/gdbarch.h +++ b/gdb/gdbarch.h @@ -734,6 +734,20 @@ typedef struct displaced_step_closure * (gdbarch_displaced_step_copy_insn_ftype) extern struct displaced_step_closure * gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, CORE_ADDR from, CORE_ADDR to, struct regcache *regs); extern void set_gdbarch_displaced_step_copy_insn (struct gdbarch *gdbarch, gdbarch_displaced_step_copy_insn_ftype *displaced_step_copy_insn); +/* Return true if GDB should use hardware single-stepping to execute + the displaced instruction identified by CLOSURE. If false, + GDB will simply restart execution at the displaced instruction + location, and it is up to the target to ensure GDB will receive + control again (e.g. by placing a software breakpoint instruction + into the displaced instruction buffer). + + The default implementation returns false on all targets that + provide a gdbarch_software_single_step routine, and true otherwise. */ + +typedef int (gdbarch_displaced_step_hw_singlestep_ftype) (struct gdbarch *gdbarch, struct displaced_step_closure *closure); +extern int gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, struct displaced_step_closure *closure); +extern void set_gdbarch_displaced_step_hw_singlestep (struct gdbarch *gdbarch, gdbarch_displaced_step_hw_singlestep_ftype *displaced_step_hw_singlestep); + /* Fix up the state resulting from successfully single-stepping a displaced instruction, to give the result we would have gotten from stepping the instruction in its original location. |