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| author | Corey Minyard <cminyard@mvista.com> | 2017-08-10 21:27:39 +0300 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-09-06 12:01:52 +0300 |
| commit | 866b6a89c6d1876fce25c152ef9f887b41ffcf7f (patch) | |
| tree | ee1d5a144e4ca31cfbc6d569bbce8cc493d53a2e /arch/mips/mm/tlbex-fault.S | |
| parent | 9fef68686317bc9f85fb4e84e225d26ea2cb1cac (diff) | |
| download | linux-866b6a89c6d1876fce25c152ef9f887b41ffcf7f.tar.xz | |
MIPS: Add DWARF unwinding to assembly
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>
Diffstat (limited to 'arch/mips/mm/tlbex-fault.S')
| -rw-r--r-- | arch/mips/mm/tlbex-fault.S | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/mips/mm/tlbex-fault.S b/arch/mips/mm/tlbex-fault.S index 318855eb5f80..77db401fc620 100644 --- a/arch/mips/mm/tlbex-fault.S +++ b/arch/mips/mm/tlbex-fault.S @@ -12,14 +12,15 @@ .macro tlb_do_page_fault, write NESTED(tlb_do_page_fault_\write, PT_SIZE, sp) - SAVE_ALL + .cfi_signal_frame + SAVE_ALL docfi=1 MFC0 a2, CP0_BADVADDR KMODE move a0, sp REG_S a2, PT_BVADDR(sp) li a1, \write - PTR_LA ra, ret_from_exception - j do_page_fault + jal do_page_fault + j ret_from_exception END(tlb_do_page_fault_\write) .endm |