MIPS: mcount: Adjust stack pointer for static trace in MIPS32

[platform/adaptation/renesas_rcar/renesas_kernel.git] / arch / mips / kernel / mcount.S

diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S
index 539b629..8f89ff4 100644 (file)
--- a/arch/mips/kernel/mcount.S
+++ b/arch/mips/kernel/mcount.S
@@ -123,7 +123,11 @@ NESTED(_mcount, PT_SIZE, ra)
         nop
 #endif
        b       ftrace_stub
+#ifdef CONFIG_32BIT
+        addiu sp, sp, 8
+#else
         nop
+#endif
 
 static_trace:
        MCOUNT_SAVE_REGS
@@ -133,6 +137,9 @@ static_trace:
         move   a1, AT          /* arg2: parent's return address */
 
        MCOUNT_RESTORE_REGS
+#ifdef CONFIG_32BIT
+       addiu sp, sp, 8
+#endif
        .globl ftrace_stub
 ftrace_stub:
        RETURN_BACK
@@ -177,6 +184,11 @@ NESTED(ftrace_graph_caller, PT_SIZE, ra)
        jal     prepare_ftrace_return
         nop
        MCOUNT_RESTORE_REGS
+#ifndef CONFIG_DYNAMIC_FTRACE
+#ifdef CONFIG_32BIT
+       addiu sp, sp, 8
+#endif
+#endif
        RETURN_BACK
        END(ftrace_graph_caller)