From 67ca399a30cec05acacd7ea33d5cb0e361f92755 Mon Sep 17 00:00:00 2001
From: Mike Pall <mike>
Date: Tue, 26 Jan 2010 21:49:04 +0100
Subject: Compress snapshots using a simple, extensible 1D-compression.

Typically reduces storage overhead for snapshot maps by 60%.
The extensible format is a prerequisite for the next redesign steps:
Eliminate IR_FRAME and implement return-to-lower-frame.
---
 src/lj_gdbjit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/lj_gdbjit.c')

diff --git a/src/lj_gdbjit.c b/src/lj_gdbjit.c
index 4fce5eb9..345afb51 100644
--- a/src/lj_gdbjit.c
+++ b/src/lj_gdbjit.c
@@ -698,8 +698,8 @@ void lj_gdbjit_addtrace(jit_State *J, Trace *T, TraceNo traceno)
   lua_State *L = J->L;
   GCproto *pt = &gcref(T->startpt)->pt;
   TraceNo parent = T->ir[REF_BASE].op1;
-  uintptr_t pcofs = (uintptr_t)(T->snap[0].mapofs+T->snap[0].nslots);
-  const BCIns *startpc = (const BCIns *)(uintptr_t)T->snapmap[pcofs];
+  uintptr_t pcofs = (uintptr_t)(T->snap[0].mapofs+T->snap[0].nent);
+  const BCIns *startpc = snap_pc(T->snapmap[pcofs]);
   ctx.T = T;
   ctx.mcaddr = (uintptr_t)T->mcode;
   ctx.szmcode = T->szmcode;
-- 
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