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Add td__getstacksize() to support variable stack sizes.

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This commit is contained in:
cl 2003-11-27 16:32:09 +00:00
parent 2c9b7b1eb7
commit 828439fb74
2 changed files with 44 additions and 3 deletions
lib/libpthread_dbg
Makefilepthread_dbg.c

5
lib/libpthread_dbg/Makefile

@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.3 2003/10/26 07:25:34 lukem Exp $
# $NetBSD: Makefile,v 1.4 2003/11/27 16:32:09 cl Exp $
#
WARNS= 2
@ -7,6 +7,9 @@ WARNS= 2
LIBPDIR= ${.CURDIR}/../libpthread
# Define PT_FIXEDSTACKSIZE_LG to set a fixed stacksize (same as libpthread)
#CPPFLAGS+=-DPT_FIXEDSTACKSIZE_LG=18
.if exists(${LIBPDIR}/arch/${MACHINE_ARCH})
ARCHSUBDIR= ${MACHINE_ARCH}
.elif exists(${LIBPDIR}/arch/${MACHINE_CPU})

42
lib/libpthread_dbg/pthread_dbg.c

@ -1,4 +1,4 @@
/* $NetBSD: pthread_dbg.c,v 1.9 2003/09/11 21:57:32 christos Exp $ */
/* $NetBSD: pthread_dbg.c,v 1.10 2003/11/27 16:32:09 cl Exp $ */
/*-
* Copyright (c) 2002 Wasabi Systems, Inc.
@ -36,7 +36,7 @@
*/
#include <sys/cdefs.h>
__RCSID("$NetBSD: pthread_dbg.c,v 1.9 2003/09/11 21:57:32 christos Exp $");
__RCSID("$NetBSD: pthread_dbg.c,v 1.10 2003/11/27 16:32:09 cl Exp $");
#include <stddef.h>
#include <stdlib.h>
@ -55,6 +55,15 @@ __RCSID("$NetBSD: pthread_dbg.c,v 1.9 2003/09/11 21:57:32 christos Exp $");
static int td__getthread(td_proc_t *proc, caddr_t addr, td_thread_t **threadp);
static int td__getsync(td_proc_t *proc, caddr_t addr, td_sync_t **syncp);
static int td__getstacksize(td_proc_t *proc);
#ifndef PT_FIXEDSTACKSIZE_LG
caddr_t pt_stacksize_lg_addr = NULL;
int pt_stacksize_lg = -1;
size_t pt_stacksize;
vaddr_t pt_stackmask;
#endif /* !PT_FIXEDSTACKSIZE_LG */
int
td_open(struct td_proc_callbacks_t *cb, void *arg, td_proc_t **procp)
@ -524,6 +533,8 @@ td_sync_info(td_sync_t *s, td_sync_info_t *info)
ptm_owner),
&taddr, sizeof(taddr))) != 0)
return val;
if ((val = td__getstacksize(s->proc)) != 0)
return val;
taddr = pthread__id(taddr);
td__getthread(s->proc, (void *)taddr,
&info->sync_data.mutex.owner);
@ -773,6 +784,10 @@ td_map_lwp2thr(td_proc_t *proc, int lwp, td_thread_t **threadp)
PTHREAD_REG_TO_UCONTEXT(&uc, &gregs);
val = td__getstacksize(proc);
if (val != 0)
return val;
th = pthread__id(pthread__uc_sp(&uc));
val = READ(proc, th, &magic, sizeof(magic));
@ -942,3 +957,26 @@ td_thr_tsd(td_thread_t *thread, pthread_key_t key, void **value)
return val;
}
static int
td__getstacksize(td_proc_t *proc)
{
#ifndef PT_FIXEDSTACKSIZE_LG
int lg, val;
if (pt_stacksize_lg_addr == NULL) {
val = LOOKUP(proc, "pt_stacksize_lg", &pt_stacksize_lg_addr);
if (val != 0)
return val;
}
val = READ(proc, pt_stacksize_lg_addr, &lg, sizeof(int));
if (val != 0)
return val;
if (lg != pt_stacksize_lg) {
pt_stacksize_lg = lg;
pt_stacksize = (1 << pt_stacksize_lg);
pt_stackmask = pt_stacksize - 1;
}
#endif /* !PT_FIXEDSTACKSIZE_LG */
return 0;
}