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MIPS: Add DWARF unwinding to assembly

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This will allow kdump dumps to work correclty with MIPS and
future DWARF unwinding of the stack to give accurate tracebacks.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16990/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Corey Minyard 2017-08-10 13:27:39 -05:00 • committed by Ralf Baechle
parent 9fef686863
commit 866b6a89c6
6 changed files with 151 additions and 117 deletions
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3
arch/mips/include/asm/asm.h
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@ -55,6 +55,7 @@
.type symbol, @function; \
.ent symbol, 0; \
symbol: .frame sp, 0, ra; \
.cfi_startproc; \
.insn
/*
@ -66,12 +67,14 @@ symbol: .frame sp, 0, ra; \
.type symbol, @function; \
.ent symbol, 0; \
symbol: .frame sp, framesize, rpc; \
.cfi_startproc; \
.insn
/*
* END - mark end of function
*/
#define END(function) \
.cfi_endproc; \
.end function; \
.size function, .-function