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* nlm/ppc.c (set_step_traps clear_step_traps): Cleanups.

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* nlm/gdbserve.def:  Autoload clib.
This commit is contained in:
Stu Grossman
1994-08-24 00:27:38 +00:00
parent e44075d3aa
commit 8edf00160b
3 changed files with 28 additions and 20 deletions
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7
gdb/ChangeLog
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@ -1,5 +1,12 @@
Tue Aug 23 16:54:16 1994 Stu Grossman (grossman@cygnus.com)
* nlm/ppc.c (set_step_traps clear_step_traps): Cleanups.
* nlm/gdbserve.def: Autoload clib.
Tue Aug 23 12:05:19 1994 Jim Kingdon (kingdon@cygnus.com) Tue Aug 23 12:05:19 1994 Jim Kingdon (kingdon@cygnus.com)
* breakpoint.c (condition_command): Call breakpoints_changed.
* gdbtypes.h: Declare f77_create_literal_string_type and * gdbtypes.h: Declare f77_create_literal_string_type and
f77_create_literal_complex_type. f77_create_literal_complex_type.
* valops.c (f77_value_literal_string, f77_value_substring, * valops.c (f77_value_literal_string, f77_value_substring,

1
gdb/nlm/gdbserve.def
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@ -1,6 +1,7 @@
description "GDB debugger stub" description "GDB debugger stub"
version 1,2,0 version 1,2,0
#debug #debug
module clib
screenname "System Console" screenname "System Console"
input gdbserve.O input gdbserve.O
output gdbserve.nlm output gdbserve.nlm

40
gdb/nlm/ppc.c
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@ -134,64 +134,62 @@ union inst
}; };
static LONG saved_inst; static LONG saved_inst;
static char *saved_inst_pc = 0; static LONG *saved_inst_pc = 0;
static LONG saved_target_inst; static LONG saved_target_inst;
static char *saved_target_inst_pc = 0; static LONG *saved_target_inst_pc = 0;
void void
set_step_traps (frame) set_step_traps (frame)
struct StackFrame *frame; struct StackFrame *frame;
{ {
union inst inst; union inst inst;
char *target; LONG *target;
int opcode; int opcode;
int ra, rb; int ra, rb;
char *pc = (char *)frame->ExceptionPC; LONG *pc = (LONG *)frame->ExceptionPC;
inst.l = *(LONG *)pc; inst.l = *pc++;
opcode = inst.inst.variant.b.opcode; opcode = inst.inst.variant.b.opcode;
target = pc;
switch (opcode) switch (opcode)
{ {
case 18: /* Unconditional branch */ case 18: /* Unconditional branch */
target = (char *)(inst.inst.variant.b.li << 2);
if (!inst.inst.variant.b.aa) /* Relative? */ if (inst.inst.variant.b.aa) /* Absolute? */
target += (long)pc; target = 0;
target += inst.inst.variant.b.li;
break; break;
case 16: /* Conditional branch */ case 16: /* Conditional branch */
target = (char *)(inst.inst.variant.bc.bd << 2);
if (!inst.inst.variant.bc.aa) /* Relative? */ if (!inst.inst.variant.bc.aa) /* Absolute? */
target += (long)pc; target = 0;
target += inst.inst.variant.bc.bd;
break; break;
case 19: /* Cond. branch via ctr or lr reg */ case 19: /* Cond. branch via ctr or lr reg */
switch (inst.inst.variant.bclr.type) switch (inst.inst.variant.bclr.type)
{ {
case 528: /* ctr */ case 528: /* ctr */
target = (char *)frame->ExceptionState.u.SpecialRegistersEnumerated.CsavedCTR; target = (LONG *)frame->ExceptionState.u.SpecialRegistersEnumerated.CsavedCTR;
break; break;
case 16: /* lr */ case 16: /* lr */
target = (char *)frame->ExceptionState.u.SpecialRegistersEnumerated.CsavedLR; target = (LONG *)frame->ExceptionState.u.SpecialRegistersEnumerated.CsavedLR;
break; break;
default:
target = pc;
} }
break; break;
default:
target = pc;
} }
saved_inst = *(LONG *)pc; saved_inst = *pc;
mem_write (pc, breakpoint_insn, BREAKPOINT_SIZE); mem_write (pc, breakpoint_insn, BREAKPOINT_SIZE);
saved_inst_pc = pc; saved_inst_pc = pc;
if (target != pc) if (target != pc)
{ {
saved_target_inst = *(LONG *)target; saved_target_inst = *target;
mem_write (target, breakpoint_insn, BREAKPOINT_SIZE); mem_write (target, breakpoint_insn, BREAKPOINT_SIZE);
saved_target_inst_pc = target; saved_target_inst_pc = target;
} }
@ -206,7 +204,7 @@ clear_step_traps (frame)
struct StackFrame *frame; struct StackFrame *frame;
{ {
int retcode; int retcode;
char *pc = (char *)frame->ExceptionPC; LONG *pc = (LONG *)frame->ExceptionPC;
if (saved_inst_pc == pc || saved_target_inst_pc == pc) if (saved_inst_pc == pc || saved_target_inst_pc == pc)
retcode = 1; retcode = 1;
@ -255,6 +253,7 @@ do_status (ptr, frame)
*ptr = '\000'; *ptr = '\000';
} }
#if 0
/* /*
* strtol : convert a string to long. * strtol : convert a string to long.
* *
@ -404,6 +403,7 @@ strtoul(s, ptr, base)
*ptr = (char *) ((did_conversion) ? (char *)s : (char *)start); *ptr = (char *) ((did_conversion) ? (char *)s : (char *)start);
return negate ? -total : total; return negate ? -total : total;
} }
#endif
void _exit (int foo) __attribute__ ((noreturn)); void _exit (int foo) __attribute__ ((noreturn));