1hand-resolved trivial conflicts for 4.9 from the upstream patch
272edc2c02f8b4768ad660f46a1c7e2400c0a8e06
3diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.cc b/libsanitizer/sanitizer_common/sanitizer_linux.cc
4index 69c9c10..8e53673 100644
5--- a/libsanitizer/sanitizer_common/sanitizer_linux.cc
6+++ b/libsanitizer/sanitizer_common/sanitizer_linux.cc
7@@ -599,8 +599,7 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
8 return internal_syscall(__NR_prctl, option, arg2, arg3, arg4, arg5);
9 }
10
11-uptr internal_sigaltstack(const struct sigaltstack *ss,
12- struct sigaltstack *oss) {
13+uptr internal_sigaltstack(const void *ss, void *oss) {
14 return internal_syscall(__NR_sigaltstack, (uptr)ss, (uptr)oss);
15 }
16
17diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.h b/libsanitizer/sanitizer_common/sanitizer_linux.h
18index 6422df1..8e111d1 100644
19--- a/libsanitizer/sanitizer_common/sanitizer_linux.h
20+++ b/libsanitizer/sanitizer_common/sanitizer_linux.h
21@@ -18,7 +18,6 @@
22 #include "sanitizer_platform_limits_posix.h"
23
24 struct link_map; // Opaque type returned by dlopen().
25-struct sigaltstack;
26
27 namespace __sanitizer {
28 // Dirent structure for getdents(). Note that this structure is different from
29@@ -28,8 +27,7 @@ struct linux_dirent;
30 // Syscall wrappers.
31 uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count);
32 uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5);
33-uptr internal_sigaltstack(const struct sigaltstack* ss,
34- struct sigaltstack* oss);
35+uptr internal_sigaltstack(const void* ss, void* oss);
36 uptr internal_sigaction(int signum, const __sanitizer_kernel_sigaction_t *act,
37 __sanitizer_kernel_sigaction_t *oldact);
38 uptr internal_sigprocmask(int how, __sanitizer_kernel_sigset_t *set,
39diff --git a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
40index 891386dc..234e8c6 100644
41--- a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
42+++ b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
43@@ -273,7 +273,7 @@ static int TracerThread(void* argument) {
44
45 // Alternate stack for signal handling.
46 InternalScopedBuffer<char> handler_stack_memory(kHandlerStackSize);
47- struct sigaltstack handler_stack;
48+ stack_t handler_stack;
49 internal_memset(&handler_stack, 0, sizeof(handler_stack));
50 handler_stack.ss_sp = handler_stack_memory.data();
51 handler_stack.ss_size = kHandlerStackSize;
52diff --git a/libsanitizer/tsan/tsan_platform_linux.cc b/libsanitizer/tsan/tsan_platform_linux.cc
53index 2ed5718..6f972ab 100644
54--- a/libsanitizer/tsan/tsan_platform_linux.cc
55+++ b/libsanitizer/tsan/tsan_platform_linux.cc
56@@ -287,7 +287,7 @@ void InitializePlatform() {
57 int ExtractResolvFDs(void *state, int *fds, int nfd) {
58 #if SANITIZER_LINUX && !SANITIZER_ANDROID
59 int cnt = 0;
60- __res_state *statp = (__res_state*)state;
61+ struct __res_state *statp = (struct __res_state*)state;
62 for (int i = 0; i < MAXNS && cnt < nfd; i++) {
63 if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1)
64 fds[cnt++] = statp->_u._ext.nssocks[i];
65
66error: 'SIGSEGV' was not declared in this scope
67diff --git a/libsanitizer/asan/asan_linux.cc b/libsanitizer/asan/asan_linux.cc
68index 0692eb1..472f734 100644
69--- a/libsanitizer/asan/asan_linux.cc
70+++ b/libsanitizer/asan/asan_linux.cc
71@@ -26,6 +26,7 @@
72 #include <sys/types.h>
73 #include <fcntl.h>
74 #include <pthread.h>
75+#include <signal.h>
76 #include <stdio.h>
77 #include <unistd.h>
78 #include <unwind.h>