X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fbsd-os.c;h=64aba2cd0a569f71d59b3fb0113af6780f9162f6;hb=2d4a0df3457bcd50916b33d374da592d8776db0a;hp=3e3cfb645c6a59e776ee7945118b2a26c340ce4c;hpb=833c031ec5dd8ee50dd2dbe003e7b2f398a8b699;p=sbcl.git

diff --git a/src/runtime/bsd-os.c b/src/runtime/bsd-os.c
index 3e3cfb6..64aba2c 100644
--- a/src/runtime/bsd-os.c
+++ b/src/runtime/bsd-os.c
@@ -34,7 +34,6 @@
 #include <sys/types.h>
 #include <signal.h>
 /* #include <sys/sysinfo.h> */
-#include <sys/proc.h>
 #include "validate.h"
 vm_size_t os_vm_page_size;
 
@@ -263,6 +262,16 @@ struct thread *arch_os_get_current_thread() {
     return all_threads;
 }
 int arch_os_thread_init(struct thread *thread) {
+  stack_t sigstack;
+#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
+    /* Signal handlers are run on the control stack, so if it is exhausted
+     * we had better use an alternate stack for whatever signal tells us
+     * we've exhausted it */
+    sigstack.ss_sp=((void *) thread)+dynamic_values_bytes;
+    sigstack.ss_flags=0;
+    sigstack.ss_size = 32*SIGSTKSZ;
+    sigaltstack(&sigstack,0);
+#endif
     return 1;                  /* success */
 }
 int arch_os_thread_cleanup(struct thread *thread) {