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authordchagin <dchagin@FreeBSD.org>2011-02-12 16:33:00 +0000
committerdchagin <dchagin@FreeBSD.org>2011-02-12 16:33:00 +0000
commita999d3553b8c6d5ba61c9b15cb3ac797ad448aee (patch)
tree88f0502103d23e3269c330df10641d365694ceff /sys/i386/linux
parent8b4a0070062f048a875f2373eabffba8c5633b67 (diff)
downloadFreeBSD-src-a999d3553b8c6d5ba61c9b15cb3ac797ad448aee.zip
FreeBSD-src-a999d3553b8c6d5ba61c9b15cb3ac797ad448aee.tar.gz
In preparation for moving linux_clone() to a MI path
introduce linux_set_upcall_kse().
Diffstat (limited to 'sys/i386/linux')
-rw-r--r--sys/i386/linux/linux.h2
-rw-r--r--sys/i386/linux/linux_machdep.c11
2 files changed, 12 insertions, 1 deletions
diff --git a/sys/i386/linux/linux.h b/sys/i386/linux/linux.h
index fe84c06..b9e3f27 100644
--- a/sys/i386/linux/linux.h
+++ b/sys/i386/linux/linux.h
@@ -880,4 +880,6 @@ struct linux_robust_list_head {
struct linux_robust_list *pending_list;
};
+int linux_set_upcall_kse(struct thread *td, register_t stack);
+
#endif /* !_I386_LINUX_H_ */
diff --git a/sys/i386/linux/linux_machdep.c b/sys/i386/linux/linux_machdep.c
index b8e18ef..6af39d2 100644
--- a/sys/i386/linux/linux_machdep.c
+++ b/sys/i386/linux/linux_machdep.c
@@ -559,7 +559,7 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
* this is what normal fork() does so we just keep the tf_esp arg intact
*/
if (args->stack)
- td2->td_frame->tf_esp = (unsigned int)args->stack;
+ linux_set_upcall_kse(td2, PTROUT(args->stack));
if (args->flags & LINUX_CLONE_SETTLS)
linux_set_cloned_tls(td2, args->tls);
@@ -597,6 +597,15 @@ linux_clone(struct thread *td, struct linux_clone_args *args)
return (0);
}
+int
+linux_set_upcall_kse(struct thread *td, register_t stack)
+{
+
+ td->td_frame->tf_esp = stack;
+
+ return (0);
+}
+
#define STACK_SIZE (2 * 1024 * 1024)
#define GUARD_SIZE (4 * PAGE_SIZE)
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