Increase the signal stack size.

This makes the SIGINT signal handler work in combination with ASAN.

(partially cherry picked from commit 03c3c70, ref #17727)

src/julia_internal.h

@@ -49,9 +49,6 @@ void jl_call_tracer(tracer_cb callback, jl_value_t *tracee);
 
 extern size_t jl_page_size;
 extern jl_function_t *jl_typeinf_func;
-#if defined(JL_USE_INTEL_JITEVENTS)
-extern unsigned sig_stack_size;
-#endif
 
 JL_DLLEXPORT extern int jl_lineno;
 JL_DLLEXPORT extern const char *jl_filename;

src/signals-unix.c

@@ -28,14 +28,10 @@
 #define HAVE_TIMER
 #endif
 
-#if defined(JL_USE_INTEL_JITEVENTS)
-unsigned sig_stack_size = SIGSTKSZ;
-#elif defined(_CPU_AARCH64_)
-// The default SIGSTKSZ causes stack overflow in libunwind.
-#define sig_stack_size (1 << 16)
-#else
-#define sig_stack_size SIGSTKSZ
-#endif
+// 8M signal stack, same as default stack size and enough
+// for reasonable finalizers.
+// Should also be enough for parallel GC when we have it =)
+#define sig_stack_size (8 * 1024 * 1024)
 
 static bt_context_t *jl_to_bt_context(void *sigctx)
 {

src/threading.c

@@ -778,13 +778,6 @@ void jl_init_threading(void)
     jl_all_tls_states = &_jl_all_tls_states;
     jl_n_threads = 1;
 
-#if defined(__linux__) && defined(JL_USE_INTEL_JITEVENTS)
-    if (jl_using_intel_jitevents)
-        // Intel VTune Amplifier needs at least 64k for alternate stack.
-        if (SIGSTKSZ < 1<<16)
-            sig_stack_size = 1<<16;
-#endif
-
     ti_init_master_thread();
 }