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* sparc-tdep.c (sparc_software_single_step): Handle stepping to NULL.

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This commit is contained in:
Daniel Jacobowitz 2004-11-21 20:11:09 +00:00
parent b957e93796
commit 8c3900e409
2 changed files with 10 additions and 5 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
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.

11
gdb/sparc-tdep.c
View file

@ -1030,10 +1030,10 @@ sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
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);
@ -1043,9 +1043,10 @@ sparc_software_single_step (enum target_signal sig, int insert_breakpoints_p)
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
{