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From d80cfc83325f8e95d35ecd9f15b36b96fa9ed3ee Mon Sep 17 00:00:00 2001
From: Simon South <simon@simonsouth.net>
Date: Sat, 6 Jun 2020 18:56:56 -0400
Subject: [PATCH] Disable branch-patching
This patch disables JamVM's branch-patching optimization, which tends
to make JamVM fail with an "Illegal instruction" error on x86_64 (and
possibly other architectures that use variable-length instructions)
when built using modern versions of gcc and glibc.
---
src/init.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/init.c b/src/init.c
index 32539cf..38ad54b 100644
--- a/src/init.c
+++ b/src/init.c
@@ -72,8 +72,8 @@ void setDefaultInitArgs(InitArgs *args) {
#ifdef INLINING
args->replication_threshold = 10;
args->profile_threshold = 10;
- args->branch_patching_dup = TRUE;
- args->branch_patching = TRUE;
+ args->branch_patching_dup = FALSE;
+ args->branch_patching = FALSE;
args->print_codestats = FALSE;
args->join_blocks = TRUE;
args->profiling = TRUE;
--
2.25.2
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