From 00dde7563e82cf5217b249e54ddda941a6398e74 Mon Sep 17 00:00:00 2001
From: Kuba Brecka <kuba.brecka@gmail.com>
Date: Thu, 12 May 2016 14:08:56 +0000
Subject: [PATCH] Fixup for r269288.  SleepForSeconds is not available in
 nolibc builds, let's add an internal_sleep.

llvm-svn: 269296
---
 .../lib/sanitizer_common/sanitizer_common_nolibc.cc      | 1 +
 compiler-rt/lib/sanitizer_common/sanitizer_libc.h        | 1 +
 compiler-rt/lib/sanitizer_common/sanitizer_linux.cc      | 9 +++++++++
 compiler-rt/lib/sanitizer_common/sanitizer_mac.cc        | 4 ++++
 4 files changed, 15 insertions(+)

diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_common_nolibc.cc b/compiler-rt/lib/sanitizer_common/sanitizer_common_nolibc.cc
index 9f4f97224e18..e24cf998ec69 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_common_nolibc.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_common_nolibc.cc
@@ -23,5 +23,6 @@ void LogMessageOnPrintf(const char *str) {}
 #endif
 void WriteToSyslog(const char *buffer) {}
 void Abort() { internal__exit(1); }
+void SleepForSeconds(int seconds) { internal_sleep(seconds); }
 
 }  // namespace __sanitizer
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_libc.h b/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
index df28677c6700..71b8917729d1 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_libc.h
@@ -70,6 +70,7 @@ uptr internal_ftruncate(fd_t fd, uptr size);
 
 // OS
 void NORETURN internal__exit(int exitcode);
+unsigned int internal_sleep(unsigned int seconds);
 
 uptr internal_getpid();
 uptr internal_getppid();
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc
index bb30b759e0fb..ef4cf48b371e 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_linux.cc
@@ -336,6 +336,15 @@ void internal__exit(int exitcode) {
   Die();  // Unreachable.
 }
 
+unsigned int internal_sleep(unsigned int seconds) {
+  struct timespec ts;
+  ts.tv_sec = 1;
+  ts.tv_nsec = 0;
+  int res = internal_syscall(SYSCALL(nanosleep), &ts, &ts);
+  if (res) return ts.tv_sec;
+  return 0;
+}
+
 uptr internal_execve(const char *filename, char *const argv[],
                      char *const envp[]) {
   return internal_syscall(SYSCALL(execve), (uptr)filename, (uptr)argv,
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc b/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
index a2b0e2123457..f1166149ec6a 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_mac.cc
@@ -161,6 +161,10 @@ void internal__exit(int exitcode) {
   _exit(exitcode);
 }
 
+unsigned int internal_sleep(unsigned int seconds) {
+  sleep(seconds);
+}
+
 uptr internal_getpid() {
   return getpid();
 }