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authorUlrich Drepper <drepper@redhat.com>2000-12-31 08:26:04 +0000
committerUlrich Drepper <drepper@redhat.com>2000-12-31 08:26:04 +0000
commit41b64fc4c1d8922e92e80abd3354a50b0ecfeb8a (patch)
tree13b38ce5b3d8df1606762bd1fce5dd6878feddb8
parent09f5e1635ae75de077c5307d02fdbefc4b0c7144 (diff)
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Update.
2000-12-31 Ulrich Drepper <drepper@redhat.com> * sysdeps/powerpc/pspinlock.c: Don't include pt-machine.h here. * manager.c (pthread_allocate_stack): Prepare for removal of MAP_FIXED.
-rw-r--r--linuxthreads/ChangeLog6
-rw-r--r--linuxthreads/manager.c46
-rw-r--r--linuxthreads/sysdeps/powerpc/pspinlock.c1
3 files changed, 37 insertions, 16 deletions
diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog
index 2bb9371912..404d3fce80 100644
--- a/linuxthreads/ChangeLog
+++ b/linuxthreads/ChangeLog
@@ -1,3 +1,9 @@
+2000-12-31 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/powerpc/pspinlock.c: Don't include pt-machine.h here.
+
+ * manager.c (pthread_allocate_stack): Prepare for removal of MAP_FIXED.
+
2000-11-15 Wolfram Gloger <wg@malloc.de>
* manager.c (pthread_free): [!FLOATING_STACKS]: Only remap the
diff --git a/linuxthreads/manager.c b/linuxthreads/manager.c
index 8442629c08..c48ce76c55 100644
--- a/linuxthreads/manager.c
+++ b/linuxthreads/manager.c
@@ -345,6 +345,8 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
/* Allocate space for stack and thread descriptor at default address */
#ifdef NEED_SEPARATE_REGISTER_STACK
+ void *res_addr;
+
if (attr != NULL)
{
guardsize = page_roundup (attr->__guardsize, granularity);
@@ -371,18 +373,26 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
/* XXX Fix for floating stacks with variable sizes. */
/* First the main stack: */
- if (mmap((caddr_t)((char *)(new_thread + 1) - stacksize / 2),
- stacksize / 2, PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0)
- == MAP_FAILED)
- /* Bad luck, this segment is already mapped. */
- return -1;
+ map_addr = (caddr_t)((char *)(new_thread + 1) - stacksize / 2);
+ res_addr = mmap(map_addr, stacksize / 2,
+ PROT_READ | PROT_WRITE | PROT_EXEC,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+ if (res_addr != map_addr)
+ {
+ /* Bad luck, this segment is already mapped. */
+ if (res_addr != MAP_FAILED)
+ munmap(res_addr, stacksize / 2);
+ return -1;
+ }
/* Then the register stack: */
- if (mmap((caddr_t)new_thread_bottom, stacksize/2,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0)
- == MAP_FAILED)
+ map_addr = (caddr_t)new_thread_bottom;
+ res_addr = mmap(map_addr, stacksize/2,
+ PROT_READ | PROT_WRITE | PROT_EXEC,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXES, -1, 0);
+ if (res_addr != map_addr)
{
+ if (res_addr != MAP_FAILED)
+ munmap(res_addr, stacksize / 2);
munmap((caddr_t)((char *)(new_thread + 1) - stacksize/2),
stacksize/2);
return -1;
@@ -419,6 +429,8 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
new_thread_bottom = (char *) map_addr + guardsize;
new_thread = ((pthread_descr) (new_thread_bottom + stacksize)) - 1;
# else /* !FLOATING_STACKS */
+ void *res_addr;
+
if (attr != NULL)
{
guardsize = page_roundup (attr->__guardsize, granularity);
@@ -434,13 +446,17 @@ static int pthread_allocate_stack(const pthread_attr_t *attr,
new_thread = default_new_thread;
new_thread_bottom = (char *) (new_thread + 1) - stacksize;
- map_addr = mmap((caddr_t)((char *)(new_thread + 1) - stacksize - guardsize),
- stacksize + guardsize,
+ map_addr = new_thread_bottom - guardsize;
+ res_addr = mmap(map_addr, stacksize + guardsize,
PROT_READ | PROT_WRITE | PROT_EXEC,
MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
- if (map_addr == MAP_FAILED)
- /* Bad luck, this segment is already mapped. */
- return -1;
+ if (res_addr != map_addr)
+ {
+ /* Bad luck, this segment is already mapped. */
+ if (res_addr != MAP_FAILED)
+ munmap (res_addr, stacksize + guardsize);
+ return -1;
+ }
/* We manage to get a stack. Protect the guard area pages if
necessary. */
diff --git a/linuxthreads/sysdeps/powerpc/pspinlock.c b/linuxthreads/sysdeps/powerpc/pspinlock.c
index 80e2727dfe..c0b2dc4ad5 100644
--- a/linuxthreads/sysdeps/powerpc/pspinlock.c
+++ b/linuxthreads/sysdeps/powerpc/pspinlock.c
@@ -19,7 +19,6 @@
#include <errno.h>
#include <pthread.h>
-#include <pt-machine.h>
#include "internals.h"
int