Make clang sanitizers ( sys-libs/compiler-rt-sanitizers-6.0.0 ) compile with musl

clang-nongnu.patch

diff -ruN compiler-rt-6.0.0.src/lib/asan/asan_linux.cc compiler-rt-6.0.0.src-musl/lib/asan/asan_linux.cc
--- compiler-rt-6.0.0.src/lib/asan/asan_linux.cc	2018-02-07 20:51:13.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/asan/asan_linux.cc	2018-03-20 11:57:12.381740075 +0100
@@ -46,7 +46,7 @@
 #include <link.h>
 #endif
 
-#if SANITIZER_ANDROID || SANITIZER_FREEBSD || SANITIZER_SOLARIS
+#if SANITIZER_ANDROID || SANITIZER_FREEBSD || SANITIZER_SOLARIS || SANITIZER_NONGNU
 #include <ucontext.h>
 extern "C" void* _DYNAMIC;
 #elif SANITIZER_NETBSD
@@ -139,7 +139,7 @@
   UNIMPLEMENTED();
 }
 
-#if SANITIZER_ANDROID
+#if SANITIZER_ANDROID || SANITIZER_NONGNU
 // FIXME: should we do anything for Android?
 void AsanCheckDynamicRTPrereqs() {}
 void AsanCheckIncompatibleRT() {}
diff -ruN compiler-rt-6.0.0.src/lib/interception/interception_linux.cc compiler-rt-6.0.0.src-musl/lib/interception/interception_linux.cc
--- compiler-rt-6.0.0.src/lib/interception/interception_linux.cc	2017-12-14 21:14:29.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/interception/interception_linux.cc	2018-03-20 11:50:05.798412046 +0100
@@ -43,7 +43,7 @@
 }
 
 // Android and Solaris do not have dlvsym
-#if !SANITIZER_ANDROID && !SANITIZER_SOLARIS
+#if !SANITIZER_ANDROID && !SANITIZER_SOLARIS && defined(__GLIBC__)
 void *GetFuncAddrVer(const char *func_name, const char *ver) {
   return dlvsym(RTLD_NEXT, func_name, ver);
 }
diff -ruN compiler-rt-6.0.0.src/lib/msan/msan_interceptors.cc compiler-rt-6.0.0.src-musl/lib/msan/msan_interceptors.cc
--- compiler-rt-6.0.0.src/lib/msan/msan_interceptors.cc	2017-12-14 02:20:16.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/msan/msan_interceptors.cc	2018-03-20 13:18:05.831679710 +0100
@@ -1438,6 +1438,7 @@
   return cbdata->callback(info, size, cbdata->data);
 }
 
+/* does not compile with musl
 INTERCEPTOR(void *, shmat, int shmid, const void *shmaddr, int shmflg) {
   ENSURE_MSAN_INITED();
   void *p = REAL(shmat)(shmid, shmaddr, shmflg);
@@ -1450,6 +1451,7 @@
   }
   return p;
 }
+*/
 
 INTERCEPTOR(int, dl_iterate_phdr, dl_iterate_phdr_cb callback, void *data) {
   void *ctx;
@@ -1668,7 +1670,7 @@
   INTERCEPT_FUNCTION(pthread_join);
   INTERCEPT_FUNCTION(tzset);
   INTERCEPT_FUNCTION(__cxa_atexit);
-  INTERCEPT_FUNCTION(shmat);
+  // INTERCEPT_FUNCTION(shmat); // does not compile with musl
   INTERCEPT_FUNCTION(fork);
   INTERCEPT_FUNCTION(openpty);
   INTERCEPT_FUNCTION(forkpty);
diff -ruN compiler-rt-6.0.0.src/lib/msan/msan_linux.cc compiler-rt-6.0.0.src-musl/lib/msan/msan_linux.cc
--- compiler-rt-6.0.0.src/lib/msan/msan_linux.cc	2017-11-08 00:51:22.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/msan/msan_linux.cc	2018-03-20 12:37:58.201709654 +0100
@@ -13,7 +13,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "sanitizer_common/sanitizer_platform.h"
-#if SANITIZER_FREEBSD || SANITIZER_LINUX || SANITIZER_NETBSD
+#if SANITIZER_FREEBSD || SANITIZER_LINUX && !SANITIZER_NONGNU || SANITIZER_NETBSD 
 
 #include "msan.h"
 #include "msan_thread.h"
diff -ruN compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc
--- compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc	2017-12-14 21:14:29.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_common_interceptors_ioctl.inc	2018-03-20 12:09:13.391731107 +0100
@@ -102,7 +102,7 @@
   _(SIOCGETVIFCNT, WRITE, struct_sioc_vif_req_sz);
 #endif
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX  && !SANITIZER_NONGNU
   // Conflicting request ids.
   // _(CDROMAUDIOBUFSIZ, NONE, 0);
   // _(SNDCTL_TMR_CONTINUE, NONE, 0);
@@ -363,7 +363,7 @@
   _(VT_WAITACTIVE, NONE, 0);
 #endif
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
   // _(SIOCDEVPLIP, WRITE, struct_ifreq_sz); // the same as EQL_ENSLAVE
   _(CYGETDEFTHRESH, WRITE, sizeof(int));
   _(CYGETDEFTIMEOUT, WRITE, sizeof(int));
diff -ruN compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_common_syscalls.inc compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_common_syscalls.inc
--- compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_common_syscalls.inc	2016-06-25 01:09:44.000000000 +0200
+++ compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_common_syscalls.inc	2018-03-20 12:32:49.228380164 +0100
@@ -2038,7 +2038,7 @@
   }
 }
 
-#if !SANITIZER_ANDROID
+#if !SANITIZER_ANDROID && !SANITIZER_NONGNU
 PRE_SYSCALL(prlimit64)(long pid, long resource, const void *new_rlim,
                        void *old_rlim) {
   if (new_rlim) PRE_READ(new_rlim, struct_rlimit64_sz);
Binary files compiler-rt-6.0.0.src/lib/sanitizer_common/.sanitizer_linux_libcdep.cc.kate-swp and compiler-rt-6.0.0.src-musl/lib/sanitizer_common/.sanitizer_linux_libcdep.cc.kate-swp differ
diff -ruN compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform.h compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform.h
--- compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform.h	2017-12-14 21:14:29.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform.h	2018-03-20 11:27:50.371761989 +0100
@@ -24,6 +24,12 @@
 #else
 # define SANITIZER_LINUX   0
 #endif
+  
+#if defined(__linux__) && !defined(__GLIBC__)
+# define SANITIZER_NONGNU 1
+#else
+# define SANITIZER_NONGNU 0
+#endif
 
 #if defined(__FreeBSD__)
 # define SANITIZER_FREEBSD 1
diff -ruN compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform_interceptors.h compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform_interceptors.h
--- compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform_interceptors.h	2017-12-29 00:06:51.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform_interceptors.h	2018-03-20 11:30:21.908426772 +0100
@@ -38,7 +38,7 @@
 # include "sanitizer_platform_limits_solaris.h"
 #endif
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
 # define SI_LINUX_NOT_ANDROID 1
 #else
 # define SI_LINUX_NOT_ANDROID 0
diff -ruN compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform_limits_posix.cc compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
--- compiler-rt-6.0.0.src/lib/sanitizer_common/sanitizer_platform_limits_posix.cc	2017-11-21 10:36:07.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/sanitizer_common/sanitizer_platform_limits_posix.cc	2018-03-20 13:37:42.438331742 +0100
@@ -140,10 +140,10 @@
 #include <glob.h>
 #include <obstack.h>
 #include <mqueue.h>
-#include <net/if_ppp.h>
-#include <netax25/ax25.h>
-#include <netipx/ipx.h>
-#include <netrom/netrom.h>
+#include <linux/if_ppp.h>
+#include <linux/ax25.h>
+#include <linux/ipx.h>
+#include <linux/netrom.h>
 #if HAVE_RPC_XDR_H
 # include <rpc/xdr.h>
 #elif HAVE_TIRPC_RPC_XDR_H
@@ -159,7 +159,7 @@
 # include <sys/procfs.h>
 #endif
 #include <sys/user.h>
-#include <sys/ustat.h>
+/* #include <sys/ustat.h> // is in glibc, but not in musl */
 #include <linux/cyclades.h>
 #include <linux/if_eql.h>
 #include <linux/if_plip.h>
@@ -252,8 +252,8 @@
   unsigned struct_itimerspec_sz = sizeof(struct itimerspec);
 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
-  unsigned struct_ustat_sz = sizeof(struct ustat);
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
+  unsigned struct_ustat_sz = sizeof(struct ustat); 
   unsigned struct_rlimit64_sz = sizeof(struct rlimit64);
   unsigned struct_statvfs64_sz = sizeof(struct statvfs64);
 #endif // SANITIZER_LINUX && !SANITIZER_ANDROID
@@ -275,9 +275,9 @@
 #endif
 
 
-#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
+#if (SANITIZER_LINUX && !SANITIZER_NONGNU || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
   unsigned struct_shminfo_sz = sizeof(struct shminfo);
-  unsigned struct_shm_info_sz = sizeof(struct shm_info);
+  unsigned struct_shm_info_sz = sizeof(nstruct shm_info);
   int shmctl_ipc_stat = (int)IPC_STAT;
   int shmctl_ipc_info = (int)IPC_INFO;
   int shmctl_shm_info = (int)SHM_INFO;
@@ -311,7 +311,7 @@
 unsigned struct_ElfW_Phdr_sz = sizeof(Elf_Phdr);
 #endif
 
-#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
+#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID && !SANITIZER_NONGNU
   int glob_nomatch = GLOB_NOMATCH;
   int glob_altdirfunc = GLOB_ALTDIRFUNC;
 #endif
@@ -405,7 +405,7 @@
   unsigned struct_termios_sz = sizeof(struct termios);
   unsigned struct_winsize_sz = sizeof(struct winsize);
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX  && !SANITIZER_NONGNU
   unsigned struct_arpreq_sz = sizeof(struct arpreq);
   unsigned struct_cdrom_msf_sz = sizeof(struct cdrom_msf);
   unsigned struct_cdrom_multisession_sz = sizeof(struct cdrom_multisession);
@@ -455,7 +455,7 @@
   unsigned struct_vt_mode_sz = sizeof(struct vt_mode);
 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
   unsigned struct_ax25_parms_struct_sz = sizeof(struct ax25_parms_struct);
   unsigned struct_cyclades_monitor_sz = sizeof(struct cyclades_monitor);
 #if EV_VERSION > (0x010000)
@@ -823,7 +823,7 @@
   unsigned IOCTL_VT_WAITACTIVE = VT_WAITACTIVE;
 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
   unsigned IOCTL_CYGETDEFTHRESH = CYGETDEFTHRESH;
   unsigned IOCTL_CYGETDEFTIMEOUT = CYGETDEFTIMEOUT;
   unsigned IOCTL_CYGETMON = CYGETMON;
@@ -978,7 +978,7 @@
 CHECK_SIZE_AND_OFFSET(dl_phdr_info, dlpi_phnum);
 #endif // SANITIZER_LINUX || SANITIZER_FREEBSD
 
-#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
+#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID && !SANITIZER_NONGNU
 CHECK_TYPE_SIZE(glob_t);
 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathc);
 CHECK_SIZE_AND_OFFSET(glob_t, gl_pathv);
@@ -1012,6 +1012,7 @@
 CHECK_SIZE_AND_OFFSET(iovec, iov_base);
 CHECK_SIZE_AND_OFFSET(iovec, iov_len);
 
+#if  !SANITIZER_NONGNU
 CHECK_TYPE_SIZE(msghdr);
 CHECK_SIZE_AND_OFFSET(msghdr, msg_name);
 CHECK_SIZE_AND_OFFSET(msghdr, msg_namelen);
@@ -1025,6 +1026,7 @@
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_len);
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_level);
 CHECK_SIZE_AND_OFFSET(cmsghdr, cmsg_type);
+#endif
 
 COMPILER_CHECK(sizeof(__sanitizer_dirent) <= sizeof(dirent));
 CHECK_SIZE_AND_OFFSET(dirent, d_ino);
@@ -1127,7 +1129,7 @@
 
 CHECK_TYPE_SIZE(ether_addr);
 
-#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID
+#if (SANITIZER_LINUX || SANITIZER_FREEBSD) && !SANITIZER_ANDROID && !SANITIZER_NONGNU
 CHECK_TYPE_SIZE(ipc_perm);
 # if SANITIZER_FREEBSD
 CHECK_SIZE_AND_OFFSET(ipc_perm, key);
@@ -1188,7 +1190,7 @@
 CHECK_SIZE_AND_OFFSET(ifaddrs, ifa_data);
 #endif
 
-#if SANITIZER_LINUX
+#if SANITIZER_LINUX && !SANITIZER_NONGNU
 COMPILER_CHECK(sizeof(__sanitizer_mallinfo) == sizeof(struct mallinfo));
 #endif
 
@@ -1238,7 +1240,7 @@
 COMPILER_CHECK(__sanitizer_XDR_FREE == XDR_FREE);
 #endif
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
 COMPILER_CHECK(sizeof(__sanitizer_FILE) <= sizeof(FILE));
 CHECK_SIZE_AND_OFFSET(FILE, _flags);
 CHECK_SIZE_AND_OFFSET(FILE, _IO_read_ptr);
@@ -1257,7 +1259,7 @@
 CHECK_SIZE_AND_OFFSET(FILE, _fileno);
 #endif
 
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID  && !SANITIZER_NONGNU
 COMPILER_CHECK(sizeof(__sanitizer__obstack_chunk) <= sizeof(_obstack_chunk));
 CHECK_SIZE_AND_OFFSET(_obstack_chunk, limit);
 CHECK_SIZE_AND_OFFSET(_obstack_chunk, prev);
diff -ruN compiler-rt-6.0.0.src/lib/tsan/rtl/tsan_platform_linux.cc compiler-rt-6.0.0.src-musl/lib/tsan/rtl/tsan_platforMake clang sanitizers ( sys-libs/compiler-rt-sanitizers-6.0.0 ) compile with muslm_linux.cc
--- compiler-rt-6.0.0.src/lib/tsan/rtl/tsan_platform_linux.cc	2017-11-28 17:28:54.000000000 +0100
+++ compiler-rt-6.0.0.src-musl/lib/tsan/rtl/tsan_platform_linux.cc	2018-03-20 12:02:39.218402676 +0100
@@ -285,7 +285,7 @@
 // This is required to properly "close" the fds, because we do not see internal
 // closes within glibc. The code is a pure hack.
 int ExtractResolvFDs(void *state, int *fds, int nfd) {
-#if SANITIZER_LINUX && !SANITIZER_ANDROID
+#if SANITIZER_LINUX && !SANITIZER_ANDROID && !SANITIZER_NONGNU
   int cnt = 0;
   struct __res_state *statp = (struct __res_state*)state;
   for (int i = 0; i < MAXNS && cnt < nfd; i++) {