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* Maintain a pointer to the cpu_info structure of the CPU being examined. 

* Force cpu_Debugger() to have a stack frame, so tracing can at least
  start off matching arguments and function calls correctly.
This commit is contained in:
pk 2003-01-07 15:15:06 +00:00
parent eb37d628b3
commit 469014c2cd
2 changed files with 11 additions and 2 deletions
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4
sys/arch/sparc/include/db_machdep.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_machdep.h,v 1.17 2001/11/09 06:52:24 thorpej Exp $ */
/* $NetBSD: db_machdep.h,v 1.18 2003/01/07 15:15:06 pk Exp $ */
/*
* Mach Operating System
@ -63,6 +63,8 @@ db_regs_t ddb_regs; /* register state */
#define DDB_FR (&ddb_regs.db_fr)
#endif
extern struct cpu_info *ddb_cpuinfo;
#if defined(lint)
#define PC_REGS(regs) ((regs)->db_tf.tf_pc)
#else

9
sys/arch/sparc/sparc/db_interface.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_interface.c,v 1.47 2002/12/23 00:42:37 pk Exp $ */
/* $NetBSD: db_interface.c,v 1.48 2003/01/07 15:15:06 pk Exp $ */
/*
* Mach Operating System
@ -111,10 +111,12 @@ db_write_bytes(addr, size, data)
/*
* Data and functions used by DDB only.
*/
void
cpu_Debugger()
{
asm("ta 0x81");
sparc_noop(); /* Force this function to allocate a stack frame */
}
static int nil;
@ -217,6 +219,9 @@ kdb_kbd_trap(tf)
}
}
/* struct cpu_info of CPU being investigated */
struct cpu_info *ddb_cpuinfo;
#ifdef MULTIPROCESSOR
#define NOCPU -1
@ -311,6 +316,7 @@ kdb_trap(type, tf)
}
curcpu()->ci_ddb_regs = ddb_regp = &dbreg;
#endif
ddb_cpuinfo = curcpu();
/* Should switch to kdb`s own stack here. */
@ -530,6 +536,7 @@ db_cpu_cmd(addr, have_addr, count, modif)
}
db_printf("using cpu %ld", addr);
ddb_regp = (void *)ci->ci_ddb_regs;
ddb_cpuinfo = ci;
}
#endif /* MULTIPROCESSOR */