LoongArch: Add STACKTRACE support

[linux-2.6-microblaze.git] / arch / loongarch / include / asm / processor.h

diff --git a/arch/loongarch/include/asm/processor.h b/arch/loongarch/include/asm/processor.h
index 57ec45a..1c4b430 100644 (file)
--- a/arch/loongarch/include/asm/processor.h
+++ b/arch/loongarch/include/asm/processor.h
@@ -101,6 +101,10 @@ struct thread_struct {
        unsigned long reg23, reg24, reg25, reg26; /* s0-s3 */
        unsigned long reg27, reg28, reg29, reg30, reg31; /* s4-s8 */
 
+       /* __schedule() return address / call frame address */
+       unsigned long sched_ra;
+       unsigned long sched_cfa;
+
        /* CSR registers */
        unsigned long csr_prmd;
        unsigned long csr_crmd;
@@ -129,6 +133,9 @@ struct thread_struct {
        struct loongarch_fpu fpu FPU_ALIGN;
 };
 
+#define thread_saved_ra(tsk)   (tsk->thread.sched_ra)
+#define thread_saved_fp(tsk)   (tsk->thread.sched_cfa)
+
 #define INIT_THREAD  {                                         \
        /*                                                      \
         * Main processor registers                             \
@@ -145,6 +152,8 @@ struct thread_struct {
        .reg29                  = 0,                            \
        .reg30                  = 0,                            \
        .reg31                  = 0,                            \
+       .sched_ra               = 0,                            \
+       .sched_cfa              = 0,                            \
        .csr_crmd               = 0,                            \
        .csr_prmd               = 0,                            \
        .csr_euen               = 0,                            \