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authorUlrich Drepper <drepper@gmail.com>2011-12-22 22:43:39 -0500
committerUlrich Drepper <drepper@gmail.com>2011-12-22 22:43:39 -0500
commit2c1094bd700e63a8d7f547b3f5495bedb55c0a08 (patch)
treebf579617e656820ae621652a6fa5219cdfc897d3 /nptl
parent3b8dfc621bfd320c924a3cd597086d3473da1cf4 (diff)
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Create internal threads with sufficient stack size
Diffstat (limited to 'nptl')
-rw-r--r--nptl/ChangeLog11
-rw-r--r--nptl/Versions2
-rw-r--r--nptl/nptl-init.c12
-rw-r--r--nptl/pthreadP.h1
-rw-r--r--nptl/sysdeps/unix/sysv/linux/timer_routines.c4
5 files changed, 26 insertions, 4 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index 31177bf..3d697da 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,14 @@
+2011-12-22 Ulrich Drepper <drepper@gmail.com>
+
+ [BZ #13088]
+ * sysdeps/unix/sysv/linux/timer_routines.c: Get minimum stack size
+ through __pthread_get_minstack.
+ * nptl-init.c (__pthread_initialize_minimal_internal): Get page size
+ directly from _rtld_global_ro.
+ (__pthread_get_minstack): New function.
+ * pthreadP.h: Declare __pthread_get_minstack.
+ * Versions (libpthread) [GLIBC_PRIVATE]: Add __pthread_get_minstack.
+
2011-12-21 Ulrich Drepper <drepper@gmail.com>
[BZ #13515]
diff --git a/nptl/Versions b/nptl/Versions
index 5a88420..6a10375 100644
--- a/nptl/Versions
+++ b/nptl/Versions
@@ -255,6 +255,6 @@ libpthread {
GLIBC_PRIVATE {
__pthread_initialize_minimal;
__pthread_clock_gettime; __pthread_clock_settime;
- __pthread_unwind;
+ __pthread_unwind; __pthread_get_minstack;
}
}
diff --git a/nptl/nptl-init.c b/nptl/nptl-init.c
index db45cab..4349224 100644
--- a/nptl/nptl-init.c
+++ b/nptl/nptl-init.c
@@ -427,7 +427,7 @@ __pthread_initialize_minimal_internal (void)
/* Make sure it meets the minimum size that allocate_stack
(allocatestack.c) will demand, which depends on the page size. */
- const uintptr_t pagesz = __sysconf (_SC_PAGESIZE);
+ const uintptr_t pagesz = GLRO(dl_pagesize);
const size_t minstack = pagesz + __static_tls_size + MINIMAL_REST_STACK;
if (limit.rlim_cur < minstack)
limit.rlim_cur = minstack;
@@ -469,3 +469,13 @@ __pthread_initialize_minimal_internal (void)
}
strong_alias (__pthread_initialize_minimal_internal,
__pthread_initialize_minimal)
+
+
+size_t
+__pthread_get_minstack (const pthread_attr_t *attr)
+{
+ struct pthread_attr *iattr = (struct pthread_attr *) attr;
+
+ return (GLRO(dl_pagesize) + __static_tls_size + PTHREAD_STACK_MIN
+ + iattr->guardsize);
+}
diff --git a/nptl/pthreadP.h b/nptl/pthreadP.h
index df4f4d7..845434e 100644
--- a/nptl/pthreadP.h
+++ b/nptl/pthreadP.h
@@ -397,6 +397,7 @@ weak_function;
extern void __pthread_init_static_tls (struct link_map *) attribute_hidden;
+extern size_t __pthread_get_minstack (const pthread_attr_t *attr);
/* Namespace save aliases. */
extern int __pthread_getschedparam (pthread_t thread_id, int *policy,
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_routines.c b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
index b159316..44da856 100644
--- a/nptl/sysdeps/unix/sysv/linux/timer_routines.c
+++ b/nptl/sysdeps/unix/sysv/linux/timer_routines.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+/* Copyright (C) 2003-2007, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
@@ -165,7 +165,7 @@ __start_helper_thread (void)
and should go away automatically when canceled. */
pthread_attr_t attr;
(void) pthread_attr_init (&attr);
- (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
+ (void) pthread_attr_setstacksize (&attr, __pthread_get_minstack (&attr));
/* Block all signals in the helper thread but SIGSETXID. To do this
thoroughly we temporarily have to block all signals here. The