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authorVineet Gupta <vgupta@synopsys.com>2013-01-22 17:03:19 +0530
committerVineet Gupta <vgupta@synopsys.com>2013-02-15 23:16:03 +0530
commit854a0d95056c265d96cb449bc97bc5ef9bbed835 (patch)
tree798c834ae188bd570b861a47765fce8ed633f85a /arch/arc/kernel/entry.S
parent41195d236e84458bebd4fdc218610a92231ac791 (diff)
ARC: DWARF2 .debug_frame based stack unwinder
-Originally written by Rajeshwar Ranga -Derived off of generic unwinder in 2.6.19 and adapted to ARC Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Rajeshwar Ranga <rajeshwar.ranga@gmail.com>
Diffstat (limited to 'arch/arc/kernel/entry.S')
-rw-r--r--arch/arc/kernel/entry.S9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 3f6ce98fea11..021cfa46a1dc 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -815,3 +815,12 @@ ARC_ENTRY sys_clone_wrapper
b ret_from_system_call
ARC_EXIT sys_clone_wrapper
+
+#ifdef CONFIG_ARC_DW2_UNWIND
+; Workaround for bug 94179 (STAR ):
+; Despite -fasynchronous-unwind-tables, linker is not making dwarf2 unwinder
+; section (.debug_frame) as loadable. So we force it here.
+; This also fixes STAR 9000487933 where the prev-workaround (objcopy --setflag)
+; would not work after a clean build due to kernel build system dependencies.
+.section .debug_frame, "wa",@progbits
+#endif