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-rw-r--r--gnu/packages/patches/clang-runtime-asan-build-fixes.patch92
1 files changed, 92 insertions, 0 deletions
diff --git a/gnu/packages/patches/clang-runtime-asan-build-fixes.patch b/gnu/packages/patches/clang-runtime-asan-build-fixes.patch
new file mode 100644
index 0000000000..e9db57d7cb
--- /dev/null
+++ b/gnu/packages/patches/clang-runtime-asan-build-fixes.patch
@@ -0,0 +1,92 @@
+This patch works around build issues in libsanitizer. Note that we carry the
+same patches for GCC since it includes the same libsanitizer.
+
+Work around this build error on glibc 2.26:
+
+ /tmp/guix-build-clang-runtime-3.5.2.drv-0/compiler-rt-3.5.2.src/lib/asan/asan_linux.cc: In function 'bool __asan::AsanInterceptsSignal(int)':
+ /tmp/guix-build-clang-runtime-3.5.2.drv-0/compiler-rt-3.5.2.src/lib/asan/asan_linux.cc:224:20: error: 'SIGSEGV' was not declared in this scope
+
+diff --git a/libsanitizer/asan/asan_linux.cc b/libsanitizer/asan/asan_linux.cc
+index c504168..59087b9 100644
+--- a/lib/asan/asan_linux.cc
++++ b/lib/asan/asan_linux.cc
+@@ -29,6 +29,7 @@
+ #include <dlfcn.h>
+ #include <fcntl.h>
+ #include <pthread.h>
++#include <signal.h>
+ #include <stdio.h>
+ #include <unistd.h>
+ #include <unwind.h>
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Now, work around this other error:
+
+ /tmp/guix-build-clang-runtime-3.5.2.drv-0/compiler-rt-3.5.2.src/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc: In function 'int __sanitizer::TracerThread(void*)':
+ /tmp/guix-build-clang-runtime-3.5.2.drv-0/compiler-rt-3.5.2.src/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc:239:22: error: aggregate 'sigaltstack handler_stack' has incomplete type and cannot be defined
+
+
+diff --git a/lib/sanitizer_common/sanitizer_linux.cc b/lib/sanitizer_common/sanitizer_linux.cc
+index 2cefa20..223d9c6 100644
+--- a/lib/sanitizer_common/sanitizer_linux.cc
++++ b/lib/sanitizer_common/sanitizer_linux.cc
+@@ -546,8 +546,7 @@ uptr internal_prctl(int option, uptr arg2, uptr arg3, uptr arg4, uptr arg5) {
+ }
+ #endif
+
+-uptr internal_sigaltstack(const struct sigaltstack *ss,
+- struct sigaltstack *oss) {
++uptr internal_sigaltstack(const void *ss, void *oss) {
+ return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
+ }
+
+diff --git a/lib/sanitizer_common/sanitizer_linux.h b/lib/sanitizer_common/sanitizer_linux.h
+index 4497702..1594058 100644
+--- a/lib/sanitizer_common/sanitizer_linux.h
++++ b/lib/sanitizer_common/sanitizer_linux.h
+@@ -19,7 +19,6 @@
+ #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_sigaltstack(const struct sigaltstack* ss,
+- struct sigaltstack* oss);
++uptr internal_sigaltstack(const void* ss, void* oss);
+ uptr internal_sigprocmask(int how, __sanitizer_sigset_t *set,
+ __sanitizer_sigset_t *oldset);
+ void internal_sigfillset(__sanitizer_sigset_t *set);
+diff --git a/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc b/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
+index c919e4f..014162af 100644
+--- a/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
++++ b/lib/sanitizer_common/sanitizer_stoptheworld_linux_libcdep.cc
+@@ -267,7 +267,7 @@ static int TracerThread(void* argument) {
+
+ // Alternate stack for signal handling.
+ InternalScopedBuffer<char> 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/lib/tsan/tsan_platform_linux.cc b/lib/tsan/tsan_platform_linux.cc
+index 09cec5f..908f4fe 100644
+--- a/lib/tsan/rtl/tsan_platform_linux.cc
++++ b/lib/tsan/rtl/tsan_platform_linux.cc
+@@ -291,7 +291,7 @@ bool IsGlobalVar(uptr addr) {
+ int ExtractResolvFDs(void *state, int *fds, int nfd) {
+ #if SANITIZER_LINUX
+ 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];
+--
+2.9.3