[compiler-rt] r355979 - AddressSanitizer: fix for SPARC with GCC

[Vitaly Buka via llvm-commits]

Author: vitalybuka
Date: Tue Mar 12 14:02:15 2019
New Revision: 355979

URL: http://llvm.org/viewvc/llvm-project?rev=355979&view=rev
Log:
AddressSanitizer: fix for SPARC with GCC

Summary:
This patch contains a fixlet for the AddressSanitizer on the SPARC with GCC, which would otherwise generate a problematic call to the intercepted memcpy routine.  It was tested with GCC on SPARC/Solaris and SPARC/Linux.

Patch by Eric Botcazou.

Reviewers: #sanitizers, vitalybuka

Reviewed By: #sanitizers, vitalybuka

Subscribers: vitalybuka, ro, jyknight, kubamracek, fedor.sergeev, jdoerfert, llvm-commits, #sanitizers

Tags: #sanitizers, #llvm

Differential Revision: https://reviews.llvm.org/D58433

Modified:
    compiler-rt/trunk/lib/asan/asan_globals.cc

Modified: compiler-rt/trunk/lib/asan/asan_globals.cc
URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/lib/asan/asan_globals.cc?rev=355979&r1=355978&r2=355979&view=diff
==============================================================================
--- compiler-rt/trunk/lib/asan/asan_globals.cc (original)
+++ compiler-rt/trunk/lib/asan/asan_globals.cc Tue Mar 12 14:02:15 2019
@@ -115,7 +115,11 @@ int GetGlobalsForAddress(uptr addr, Glob
     if (flags()->report_globals >= 2)
       ReportGlobal(g, "Search");
     if (IsAddressNearGlobal(addr, g)) {
+#if defined(__GNUC__) && defined(__sparc__)
+      internal_memcpy(&globals[res], &g, sizeof(g));
+#else
       globals[res] = g;
+#endif
       if (reg_sites)
         reg_sites[res] = FindRegistrationSite(&g);
       res++;