bump(main/emscripten): 3.1.57 (#19784)

packages/emscripten/llvm-project-llvm-tools-llvm-exegesis-lib-SubprocessMemory.cpp.diff

@@ -0,0 +1,22 @@
+--- a/llvm/tools/llvm-exegesis/lib/SubprocessMemory.cpp
++++ b/llvm/tools/llvm-exegesis/lib/SubprocessMemory.cpp
+@@ -22,7 +22,7 @@
+ namespace llvm {
+ namespace exegesis {
+ 
+-#if defined(__linux__) && !defined(__ANDROID__)
++#if defined(__linux__)
+ 
+ long SubprocessMemory::getCurrentTID() {
+   // We're using the raw syscall here rather than the gettid() function provided
+@@ -31,6 +31,10 @@
+   return syscall(SYS_gettid);
+ }
+ 
++#endif
++
++#if defined(__linux__) && !defined(__ANDROID__)
++
+ Error SubprocessMemory::initializeSubprocessMemory(pid_t ProcessID) {
+   // Add the PID to the shared memory name so that if we're running multiple
+   // processes at the same time, they won't interfere with each other.