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arch/tile: support backtracing on TILE-Gx

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This functionality was stubbed out until recently.  Now we support our
normal backtracing API on TILE-Gx as well as on TILE64/TILEPro.
This change includes a tweak to the instruction encoding caused by
adding addxli for compat mode.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
This commit is contained in:
Chris Metcalf
2010-08-13 08:40:57 -04:00
parent 32020effaf
commit 1fcbe027b5
4 changed files with 105 additions and 48 deletions
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4
arch/tile/kernel/traps.c
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@@ -128,7 +128,9 @@ static int special_ill(bundle_bits bundle, int *sigp, int *codep)
#ifdef __tilegx__
if ((bundle & TILEGX_BUNDLE_MODE_MASK) != 0)
return 0;
if (get_Opcode_X1(bundle) != UNARY_OPCODE_X1)
if (get_Opcode_X1(bundle) != RRR_0_OPCODE_X1)
return 0;
if (get_RRROpcodeExtension_X1(bundle) != UNARY_RRR_0_OPCODE_X1)
return 0;
if (get_UnaryOpcodeExtension_X1(bundle) != ILL_UNARY_OPCODE_X1)
return 0;