diff options
| author | Vineet Gupta <vgupta@synopsys.com> | 2013-06-24 21:22:06 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2016-09-30 14:48:20 -0700 |
| commit | 6716dbbdefa9867ba98dea91d89b14168043a48c (patch) | |
| tree | d134bd3853996ec3ebae718a786ec9bfe365c8b1 /arch/arc/kernel/unwind.c | |
| parent | d040876b4aad0c157c5c95779128b71a121ff27d (diff) | |
| download | linux-6716dbbdefa9867ba98dea91d89b14168043a48c.tar.gz | |
ARC: dw2 unwind: switch to .eh_frame based unwinding
So finally after almost 8 years of dealing with .debug_frame, we are
finally switching to .eh_frame. The reason being stripped kernel
binaries had non-functional unwinder as .debug_frame was gone.
Also, in general .eh_frame seems more common way of doing unwinding.
This also folds a revert of f52e126cc747 ("ARC: unwind: ensure that
.debug_frame is generated (vs. .eh_frame)") to ensure that we start
getting .eh_frame
Reported-by: Daniel Mentz <danielmentz@google.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc/kernel/unwind.c')
| -rw-r--r-- | arch/arc/kernel/unwind.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/arc/kernel/unwind.c b/arch/arc/kernel/unwind.c index 4e5dbe7617a1..61fd1ce63c56 100644 --- a/arch/arc/kernel/unwind.c +++ b/arch/arc/kernel/unwind.c @@ -111,7 +111,7 @@ UNW_REGISTER_INFO}; #define DW_EH_PE_indirect 0x80 #define DW_EH_PE_omit 0xff -#define CIE_ID 0xffffffffUL +#define CIE_ID 0 typedef unsigned long uleb128_t; typedef signed long sleb128_t; @@ -510,8 +510,7 @@ static const u32 *__cie_for_fde(const u32 *fde) { const u32 *cie; - /* cie = fde + 1 - fde[1] / sizeof(*fde); */ - cie = (u32 *) fde[1]; + cie = fde + 1 - fde[1] / sizeof(*fde); return cie; } |