diff options
| -rw-r--r-- | gdb/ChangeLog | 3 | ||||
| -rw-r--r-- | gdb/mips-tdep.c | 41 |
2 files changed, 34 insertions, 10 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 815e587..d424b5a 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,8 @@ Fri Aug 27 09:30:40 1993 Jim Kingdon (kingdon@deneb.cygnus.com) + * mips-tdep.c: Call reinit_frame_cache every time the user does + "set heuristic-fence-post". + * gdbserver/low-sun3.c: New file. * gdbserver/Makefile.in, config/m68k/sun3.mh: Change accordingly. diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c index f006fcc..f437abe 100644 --- a/gdb/mips-tdep.c +++ b/gdb/mips-tdep.c @@ -762,7 +762,7 @@ mips_frame_num_args(fip) return -1; } -/* Does this instruction involve use of a delay slot? */ +/* Is this a branch with a delay slot? */ static int is_delayed (insn) unsigned long insn; @@ -772,7 +772,10 @@ is_delayed (insn) if (mips_opcodes[i].pinfo != INSN_MACRO && (insn & mips_opcodes[i].mask) == mips_opcodes[i].match) break; - return i < NUMOPCODES && (mips_opcodes[i].pinfo & ANY_DELAY); + return (i < NUMOPCODES + && (mips_opcodes[i].pinfo & (INSN_UNCOND_BRANCH_DELAY + | INSN_COND_BRANCH_DELAY + | INSN_COND_BRANCH_LIKELY))); } /* To skip prologues, I use this predicate. Returns either PC itself @@ -910,12 +913,28 @@ mips_store_return_value (valtype, valbuf) write_register_bytes(REGISTER_BYTE (regnum), raw_buffer, TYPE_LENGTH (valtype)); } -/* Let the user turn off floating point and set the fence post for - heuristic_proc_start. */ +static void reinit_frame_cache_sfunc PARAMS ((char *, int + struct cmd_list_element *)); + +/* Just like reinit_frame_cache, but with the right arguments to be + callable as an sfunc. */ +static void +reinit_frame_cache_sfunc (args, from_tty, c) + char *args; + int from_tty; + struct cmd_list_element *c; +{ + reinit_frame_cache (); +} void _initialize_mips_tdep () { + struct cmd_list_element *c; + + /* Let the user turn off floating point and set the fence post for + heuristic_proc_start. */ + add_show_from_set (add_set_cmd ("mipsfpu", class_support, var_boolean, (char *) &mips_fpu, @@ -924,14 +943,16 @@ Turn off to avoid using floating point instructions when calling functions\n\ or dealing with return values.", &setlist), &showlist); - add_show_from_set - (add_set_cmd ("heuristic-fence-post", class_support, var_uinteger, - (char *) &heuristic_fence_post, - "\ + c = add_set_cmd ("heuristic-fence-post", class_support, var_uinteger, + (char *) &heuristic_fence_post, + "\ Set the distance searched for the start of a function.\n\ If you are debugging a stripped executable, GDB needs to search through the\n\ program for the start of a function. This command sets the distance of the\n\ search. The only need to set it is when debugging a stripped executable.", - &setlist), - &showlist); + &setlist); + /* We need to throw away the frame cache when we set this, since it + might change our ability to get backtraces. */ + c->function.sfunc = reinit_frame_cache_sfunc; + add_show_from_set (c, &showlist); } |