Author: gonzo
Date: Mon Nov 8 00:26:49 2010
New Revision: 214965
URL: http://svn.freebsd.org/changeset/base/214965
Log:
- Provide more registers for GDB
Modified:
head/sys/mips/mips/gdb_machdep.c
Modified: head/sys/mips/mips/gdb_machdep.c
==============================================================================
--- head/sys/mips/mips/gdb_machdep.c Sun Nov 7 23:44:40 2010
(r214964)
+++ head/sys/mips/mips/gdb_machdep.c Mon Nov 8 00:26:49 2010
(r214965)
@@ -117,26 +117,33 @@ gdb_cpu_getreg(int regnum, size_t *regsz
*regsz = gdb_cpu_regsz(regnum);
if (kdb_thread == PCPU_GET(curthread)) {
- switch (regnum) {
- /*
- * XXX: May need to add more registers
- */
- case 2: return (&kdb_frame->v0);
- case 3: return (&kdb_frame->v1);
- }
+ register_t *zero_ptr = &kdb_frame->zero;
+ return zero_ptr + regnum;
}
+
switch (regnum) {
- case 16: return (&kdb_thrctx->pcb_context[0]);
- case 17: return (&kdb_thrctx->pcb_context[1]);
- case 18: return (&kdb_thrctx->pcb_context[2]);
- case 19: return (&kdb_thrctx->pcb_context[3]);
- case 20: return (&kdb_thrctx->pcb_context[4]);
- case 21: return (&kdb_thrctx->pcb_context[5]);
- case 22: return (&kdb_thrctx->pcb_context[6]);
- case 23: return (&kdb_thrctx->pcb_context[7]);
- case 29: return (&kdb_thrctx->pcb_context[8]);
- case 30: return (&kdb_thrctx->pcb_context[9]);
- case 31: return (&kdb_thrctx->pcb_context[10]);
+ /*
+ * S0..S7
+ */
+ case 16:
+ case 17:
+ case 18:
+ case 19:
+ case 20:
+ case 21:
+ case 22:
+ case 23:
+ return (&kdb_thrctx->pcb_context[PCB_REG_S0 + regnum - 16]);
+ case 28:
+ return (&kdb_thrctx->pcb_context[PCB_REG_GP]);
+ case 29:
+ return (&kdb_thrctx->pcb_context[PCB_REG_SP]);
+ case 30:
+ return (&kdb_thrctx->pcb_context[PCB_REG_S8]);
+ case 31:
+ return (&kdb_thrctx->pcb_context[PCB_REG_RA]);
+ case 37:
+ return (&kdb_thrctx->pcb_context[PCB_REG_PC]);
}
return (NULL);
}
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