1 files changed, 49 insertions, 0 deletions

diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
new file mode 100644
index 000000000000..3f7018e9dbe4
--- /dev/null
+++ b/arch/s390/kernel/asm-offsets.c
@@ -0,0 +1,49 @@
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed to extract
+ * and format the required data.
+ */
+
+#include <linux/config.h>
+#include <linux/sched.h>
+
+/* Use marker if you need to separate the values later */
+
+#define DEFINE(sym, val, marker) \
+        asm volatile("\n->" #sym " %0 " #val " " #marker : : "i" (val))
+
+#define BLANK() asm volatile("\n->" : : )
+
+int main(void)
+{
+        DEFINE(__THREAD_info, offsetof(struct task_struct, thread_info),);
+        DEFINE(__THREAD_ksp, offsetof(struct task_struct, thread.ksp),);
+        DEFINE(__THREAD_per, offsetof(struct task_struct, thread.per_info),);
+        DEFINE(__THREAD_mm_segment,
+               offsetof(struct task_struct, thread.mm_segment),);
+        BLANK();
+        DEFINE(__TASK_pid, offsetof(struct task_struct, pid),);
+        BLANK();
+        DEFINE(__PER_atmid, offsetof(per_struct, lowcore.words.perc_atmid),);
+        DEFINE(__PER_address, offsetof(per_struct, lowcore.words.address),);
+        DEFINE(__PER_access_id, offsetof(per_struct, lowcore.words.access_id),);
+        BLANK();
+        DEFINE(__TI_task, offsetof(struct thread_info, task),);
+        DEFINE(__TI_domain, offsetof(struct thread_info, exec_domain),);
+        DEFINE(__TI_flags, offsetof(struct thread_info, flags),);
+        DEFINE(__TI_cpu, offsetof(struct thread_info, cpu),);
+        DEFINE(__TI_precount, offsetof(struct thread_info, preempt_count),);
+        BLANK();
+        DEFINE(__PT_ARGS, offsetof(struct pt_regs, args),);
+        DEFINE(__PT_PSW, offsetof(struct pt_regs, psw),);
+        DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs),);
+        DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2),);
+        DEFINE(__PT_ILC, offsetof(struct pt_regs, ilc),);
+        DEFINE(__PT_TRAP, offsetof(struct pt_regs, trap),);
+        DEFINE(__PT_SIZE, sizeof(struct pt_regs),);
+        BLANK();
+        DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain),);
+        DEFINE(__SF_GPRS, offsetof(struct stack_frame, gprs),);
+        DEFINE(__SF_EMPTY, offsetof(struct stack_frame, empty1),);
+        return 0;
+}