diff --git a/libc/bionic/android_profiling_dynamic.cpp b/libc/bionic/android_profiling_dynamic.cpp
index 54f896c..9d92a6d 100644
--- a/libc/bionic/android_profiling_dynamic.cpp
+++ b/libc/bionic/android_profiling_dynamic.cpp
@@ -63,6 +63,14 @@
   action.sa_flags = SA_SIGINFO | SA_RESTART;
   action.sa_sigaction = HandleProfilingSignal;
   sigaction(BIONIC_SIGNAL_PROFILER, &action, nullptr);
+
+  // The perfetto_hprof ART plugin installs a signal handler to handle this signal. That plugin
+  // does not get loaded for a) non-apps, b) non-profilable apps on user. The default signal
+  // disposition is to crash. We do not want the target to crash if we accidentally target a
+  // non-app or non-profilable process.
+  //
+  // This does *not* get run for processes that statically link libc, and those will still crash.
+  signal(BIONIC_SIGNAL_ART_PROFILER, SIG_IGN);
 }
 
 static void HandleSigsysSeccompOverride(int, siginfo_t*, void*);
diff --git a/libc/platform/bionic/reserved_signals.h b/libc/platform/bionic/reserved_signals.h
index 3c5bc02..c90fc06 100644
--- a/libc/platform/bionic/reserved_signals.h
+++ b/libc/platform/bionic/reserved_signals.h
@@ -47,8 +47,10 @@
 // If you change this, also change __ndk_legacy___libc_current_sigrtmin
 // in <android/legacy_signal_inlines.h> to match.
 
+#define BIONIC_SIGNAL_POSIX_TIMERS (__SIGRTMIN + 0)
 #define BIONIC_SIGNAL_DEBUGGER (__SIGRTMIN + 3)
 #define BIONIC_SIGNAL_PROFILER (__SIGRTMIN + 4)
+#define BIONIC_SIGNAL_ART_PROFILER (__SIGRTMIN + 6)
 #define BIONIC_SIGNAL_FDTRACK (__SIGRTMIN + 7)
 
 #define __SIGRT_RESERVED 8