File 0967-erts-Disable-the-JIT-on-x86-Macs.patch of Package erlang

Overview Repositories Revisions Requests Users Attributes Meta

File 0967-erts-Disable-the-JIT-on-x86-Macs.patch of Package erlang (Revision ddfbbd0efffaf9570a604d2e0f074ad7)

Currently displaying revision ddfbbd0efffaf9570a604d2e0f074ad7 , Show latest

From 5c9581eb409f5ef180447fbf34059bfe9b734f77 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20H=C3=B6gberg?= <john@erlang.org>
Date: Mon, 29 Jan 2024 22:06:18 +0100
Subject: [PATCH] erts: Disable the JIT on x86 Macs

---
 erts/configure    | 18 +++++++++++++++++-
 erts/configure.ac | 17 ++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/erts/configure b/erts/configure
index a09c84ff09..8d2083aa48 100755
--- a/erts/configure
+++ b/erts/configure
@@ -21838,7 +21838,23 @@ then :
 if test ${enable_jit} != no; then
    case "$ARCH" in
         amd64)
-           JIT_ARCH=x86
+           case "$OPSYS" in
+              darwin)
+                # MacOS Sonoma introduced some very annoying popups when
+                # dual-mapping memory through the documented APIs, and we did
+                # not wish to start using undocumented functionality in a patch
+                # release, so we have disabled the JIT on this platform.
+                #
+                # The ARM JIT is unaffected because it uses per-thread
+                # permissions instead of dual-mapped memory.
+                enable_jit=no
+                { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: JIT disabled due to lack to support on x86 Macs" >&5
+printf "%s\n" "$as_me: WARNING: JIT disabled due to lack to support on x86 Macs" >&2;}
+                ;;
+              *)
+                JIT_ARCH=x86
+                ;;
+           esac
            ;;
         *)
            if test ${enable_jit} = yes; then
diff --git a/erts/configure.in b/erts/configure.in
index 540cc4b3cb..a684879027 100644
--- a/erts/configure.in
+++ b/erts/configure.in
@@ -2872,7 +2872,22 @@ AS_IF([test ${enable_jit} != no],
 if test ${enable_jit} != no; then
    case "$ARCH" in
         amd64)
-           JIT_ARCH=x86
+           case "$OPSYS" in
+              darwin)
+                # MacOS Sonoma introduced some very annoying popups when
+                # dual-mapping memory through the documented APIs, and we did
+                # not wish to start using undocumented functionality in a patch
+                # release, so we have disabled the JIT on this platform.
+                #
+                # The ARM JIT is unaffected because it uses per-thread
+                # permissions instead of dual-mapped memory.
+                enable_jit=no
+                AC_MSG_WARN([JIT disabled due to lack to support on x86 Macs])
+                ;;
+              *)
+                JIT_ARCH=x86
+                ;;
+           esac
            ;;
         *)
            if test ${enable_jit} = yes; then
-- 
2.35.3

Places

File 0967-erts-Disable-the-JIT-on-x86-Macs.patch of Package erlang (Revision ddfbbd0efffaf9570a604d2e0f074ad7)

Places