diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
index 76962510e604..454a081cdf92 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_interceptors.inc
@@ -113,6 +113,7 @@
 #define setitimer __setitimer50
 #define setlocale __setlocale50
 #define shmctl __shmctl50
+#define sigaltstack __sigaltstack14
 #define sigemptyset __sigemptyset14
 #define sigfillset __sigfillset14
 #define sigpending __sigpending14
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp
index 066502bd0099..2c889f01e9fc 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.cpp
@@ -269,6 +269,7 @@ unsigned struct_passwd_sz = sizeof(struct passwd);
 unsigned struct_group_sz = sizeof(struct group);
 unsigned siginfo_t_sz = sizeof(siginfo_t);
 unsigned struct_sigaction_sz = sizeof(struct sigaction);
+unsigned struct_stack_t_sz = sizeof(stack_t);
 unsigned struct_itimerval_sz = sizeof(struct itimerval);
 unsigned pthread_t_sz = sizeof(pthread_t);
 unsigned pthread_mutex_t_sz = sizeof(pthread_mutex_t);
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.h b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.h
index 794efdb6eff6..2544f8ce7e56 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_platform_limits_netbsd.h
@@ -48,6 +48,7 @@ extern unsigned struct_timezone_sz;
 extern unsigned struct_tms_sz;
 extern unsigned struct_itimerspec_sz;
 extern unsigned struct_sigevent_sz;
+extern unsigned struct_stack_t_sz;
 extern unsigned struct_sched_param_sz;
 extern unsigned struct_statfs_sz;
 extern unsigned struct_sockaddr_sz;