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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:13:02 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:13:02 +0200
commit6ddf19584021f3c5774823278d42ee3f3124b650 (patch)
tree7d7d0cd7fe6a72db8864127c25bc40cf3aa8b29f /arch/i386/kernel/init_task_32.c
parent0c67e102ea427341ca51e0943eb3c5a911d05301 (diff)
i386: prepare shared kernel/init_task.c
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/i386/kernel/init_task_32.c')
-rw-r--r--arch/i386/kernel/init_task_32.c46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/i386/kernel/init_task_32.c b/arch/i386/kernel/init_task_32.c
new file mode 100644
index 00000000000..d26fc063a76
--- /dev/null
+++ b/arch/i386/kernel/init_task_32.c
@@ -0,0 +1,46 @@
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/init_task.h>
+#include <linux/fs.h>
+#include <linux/mqueue.h>
+
+#include <asm/uaccess.h>
+#include <asm/pgtable.h>
+#include <asm/desc.h>
+
+static struct fs_struct init_fs = INIT_FS;
+static struct files_struct init_files = INIT_FILES;
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+struct mm_struct init_mm = INIT_MM(init_mm);
+
+EXPORT_SYMBOL(init_mm);
+
+/*
+ * Initial thread structure.
+ *
+ * We need to make sure that this is THREAD_SIZE aligned due to the
+ * way process stacks are handled. This is done by having a special
+ * "init_task" linker map entry..
+ */
+union thread_union init_thread_union
+ __attribute__((__section__(".data.init_task"))) =
+ { INIT_THREAD_INFO(init_task) };
+
+/*
+ * Initial task structure.
+ *
+ * All other task structs will be allocated on slabs in fork.c
+ */
+struct task_struct init_task = INIT_TASK(init_task);
+
+EXPORT_SYMBOL(init_task);
+
+/*
+ * per-CPU TSS segments. Threads are completely 'soft' on Linux,
+ * no more per-task TSS's.
+ */
+DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS;
+