2004-11-21 Daniel Jacobowitz <dan@debian.org>
+ * sparc-tdep.c (sparc_software_single_step): Handle stepping to NULL.
+
+2004-11-21 Daniel Jacobowitz <dan@debian.org>
+
* linux-nat.c (my_waitpid): New function.
(linux_test_for_tracefork): Make more robust and verbose. Take
an ORIGINAL_PID argument and test for PTRACE_SETOPTIONS first.
if (insert_breakpoints_p)
{
- CORE_ADDR pc;
+ CORE_ADDR pc, orig_npc;
pc = sparc_address_from_register (tdep->pc_regnum);
- npc = sparc_address_from_register (tdep->npc_regnum);
+ orig_npc = npc = sparc_address_from_register (tdep->npc_regnum);
/* Analyze the instruction at PC. */
nnpc = sparc_analyze_control_transfer (pc, &npc);
target_insert_breakpoint (nnpc, nnpc_save);
/* Assert that we have set at least one breakpoint, and that
- they're not set at the same spot. */
- gdb_assert (npc != 0 || nnpc != 0);
- gdb_assert (nnpc != npc);
+ they're not set at the same spot - unless we're going
+ from here straight to NULL, i.e. a call or jump to 0. */
+ gdb_assert (npc != 0 || nnpc != 0 || orig_npc == 0);
+ gdb_assert (nnpc != npc || orig_npc == 0);
}
else
{