This is a backport of this patch from 6.5 to 4.9: https://gcc.gnu.org/git/?p=gcc.git;a=patch;h=8937b94d1a643fd9760714642296d034a45254a8 diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.cc b/libsanitizer/sanitizer_common/sanitizer_linux.cc index 69c9c10..8e53673 100644 --- a/libsanitizer/sanitizer_common/sanitizer_linux.cc +++ b/libsanitizer/sanitizer_common/sanitizer_linux.cc @@ -599,8 +599,7 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) { return internal_syscall(__NR_prctl, option, arg2, arg3, arg4, arg5); } -uptr internal_sigaltstack(const struct sigaltstack *ss, - struct sigaltstack *oss) { +uptr internal_sigaltstack(const void *ss, void *oss) { return internal_syscall(__NR_sigaltstack, (uptr)ss, (uptr)oss); } diff --git a/libsanitizer/sanitizer_common/sanitizer_linux.h b/libsanitizer/sanitizer_common/sanitizer_linux.h index 6422df1..8a8e526 100644 --- a/libsanitizer/sanitizer_common/sanitizer_linux.h +++ b/libsanitizer/sanitizer_common/sanitizer_linux.h @@ -18,7 +18,6 @@ #include "sanitizer_platform_limits_posix.h" struct link_map; // Opaque type returned by dlopen(). -struct sigaltstack; namespace __sanitizer { // Dirent structure for getdents(). Note that this structure is different from @@ -28,8 +27,7 @@ struct linux_dirent; // Syscall wrappers. uptr internal_getdents(fd_t fd, struct linux_dirent *dirp, unsigned int count); uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5); -uptr internal_sigaltstack(const struct sigaltstack* ss, - struct sigaltstack* oss); +uptr internal_sigaltstack(const void *ss, void *oss); uptr internal_sigaction(int signum, const __sanitizer_kernel_sigaction_t *act, __sanitizer_kernel_sigaction_t *oldact); uptr internal_sigprocmask(int how, __sanitizer_kernel_sigset_t *set, diff --git a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc index 6ee63ec..50c21a3 100644 --- a/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc +++ b/libsanitizer/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc @@ -238,7 +238,7 @@ static int TracerThread(void* argument) { // Alternate stack for signal handling. InternalScopedBuffer handler_stack_memory(kHandlerStackSize); - struct sigaltstack handler_stack; + stack_t handler_stack; internal_memset(&handler_stack, 0, sizeof(handler_stack)); handler_stack.ss_sp = handler_stack_memory.data(); handler_stack.ss_size = kHandlerStackSize; diff --git a/libsanitizer/tsan/tsan_platform_linux.cc b/libsanitizer/tsan/tsan_platform_linux.cc index fe69430..49f5270 100644 --- a/libsanitizer/tsan/tsan_platform_linux.cc +++ b/libsanitizer/tsan/tsan_platform_linux.cc @@ -351,7 +351,7 @@ bool IsGlobalVar(uptr addr) { // closes within glibc. The code is a pure hack. int ExtractResolvFDs(void *state, int *fds, int nfd) { int cnt = 0; - __res_state *statp = (__res_state*)state; + struct __res_state *statp = (struct __res_state*)state; for (int i = 0; i < MAXNS && cnt < nfd; i++) { if (statp->_u._ext.nsaddrs[i] && statp->_u._ext.nssocks[i] != -1) fds[cnt++] = statp->_u._ext.nssocks[i];