From 193f32e39e93ea855bda21c551362d9117160ba3 Mon Sep 17 00:00:00 2001
From: Sam Bingner <sam@bingner.com>
Date: Tue, 18 Jun 2019 11:36:26 -1000
Subject: Use a workaround for JIT on nodejs

---
 data/nodejs/_metadata/version |  2 +-
 data/nodejs/jit.diff          | 73 +++++++++++++++++++++++++++++++++++++++++++
 data/nodejs/make.sh           |  2 +-
 data/nodejs/node.xml          |  2 +-
 4 files changed, 76 insertions(+), 3 deletions(-)
 create mode 100644 data/nodejs/jit.diff

diff --git a/data/nodejs/_metadata/version b/data/nodejs/_metadata/version
index 18dca7ffd..d0879ad95 100644
--- a/data/nodejs/_metadata/version
+++ b/data/nodejs/_metadata/version
@@ -1 +1 @@
-12.3.1~a1
+12.3.1~b1
diff --git a/data/nodejs/jit.diff b/data/nodejs/jit.diff
new file mode 100644
index 000000000..c64201e39
--- /dev/null
+++ b/data/nodejs/jit.diff
@@ -0,0 +1,73 @@
+diff -ur node-v12.3.1/src/node_main.cc node-v12.3.1+JIT/src/node_main.cc
+--- node-v12.3.1/src/node_main.cc	2019-05-22 02:21:54.000000000 -1000
++++ node-v12.3.1+JIT/src/node_main.cc	2019-06-18 11:15:25.000000000 -1000
+@@ -21,6 +21,12 @@
+ 
+ #include "node.h"
+ #include <cstdio>
++#include <sys/types.h>
++#include <sys/ptrace.h>
++#include <sys/wait.h>
++#include <unistd.h>
++#include <errno.h>
++#include <string.h>
+ 
+ #ifdef _WIN32
+ #include <windows.h>
+@@ -93,6 +99,46 @@
+ }  // namespace per_process
+ }  // namespace node
+ 
++#define CS_OPS_STATUS 0
++#define CS_DEBUGGED   0x10000000
++extern "C" int csops(pid_t pid, unsigned int  ops, void * useraddr, size_t usersize);
++bool get_debugged() {
++  int flags;
++  int rv = csops(getpid(), CS_OPS_STATUS, &flags, sizeof(flags));
++  if (rv==0 && flags&CS_DEBUGGED) return true;
++
++  pid_t pid = fork();
++  if (pid) {
++    int st;
++    waitpid(pid, &st, 0);
++  } else if (pid == 0) {
++    pid_t ppid = getppid();
++    int rv = ptrace(PT_ATTACHEXC, ppid, 0, 0);
++    if (rv) {
++      perror("Unable to attach to process");
++      exit(1);
++    }
++    for (int i=0; i<100; i++) {
++      usleep(1000);
++      errno = 0;
++      rv = ptrace(PT_DETACH, ppid, 0, 0);
++      if (rv==0) break;
++    }
++    if (rv) {
++      perror("Unable to detach from process");
++      exit(1);
++    }
++    exit(0);
++  } else {
++    perror("Unable to fork");
++  }
++
++  rv = csops(getpid(), CS_OPS_STATUS, &flags, sizeof(flags));
++  if (rv==0 && flags&CS_DEBUGGED) return true;
++
++  return false;
++}
++
+ int main(int argc, char* argv[]) {
+ #if defined(__POSIX__) && defined(NODE_SHARED_MODE)
+   // In node::PlatformInit(), we squash all signal handlers for non-shared lib
+@@ -119,6 +165,9 @@
+     }
+   }
+ #endif
++  if (!get_debugged()) {
++      fprintf(stderr, "Unable to obtain CS_DEBUGGED -  I will probably die now.\n");
++  }
+   // Disable stdio buffering, it interacts poorly with printf()
+   // calls elsewhere in the program (e.g., any logging from V8.)
+   setvbuf(stdout, nullptr, _IONBF, 0);
diff --git a/data/nodejs/make.sh b/data/nodejs/make.sh
index a8b85aa45..c3f4c737b 100644
--- a/data/nodejs/make.sh
+++ b/data/nodejs/make.sh
@@ -29,7 +29,7 @@ PKG_CONFIG="$(realpath "${PKG_BASE}/util/pkg-config.sh")" \
 
 # Don't use pkg:make, CC_host gets overwritten
 SDKROOT="" \
-make BUILDTYPE=Release DESTCPU=arm64 install DESTDIR="${PKG_DEST}" -j32
+make BUILDTYPE=Release DESTCPU=arm64 install DESTDIR="${PKG_DEST}" -j16
 pkg: mkdir -p /usr/bin
 pkg: cp out/Release/node /usr/bin/
 ldid -S"${PKG_DATA}/node.xml" "${PKG_DEST}/usr/bin/node"
diff --git a/data/nodejs/node.xml b/data/nodejs/node.xml
index 00f59d885..3ce49679c 100644
--- a/data/nodejs/node.xml
+++ b/data/nodejs/node.xml
@@ -3,7 +3,7 @@
 <dict>
 	<key>platform-application</key>
 	<true/>
-	<key>dynamic-codesigning</key>
+	<key>get-task-allow</key>
 	<true/>
 </dict>
 </plist>
-- 
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