[Sanitizers, CMake] Basic sanitizer Solaris support (PR 33274)

Summary:
This patch, on top of https://reviews.llvm.org/D40898, contains the build system
changes necessary to enable the Solaris/x86 sanitizer port.

The only issue of note is the libclang_rt.sancov_{begin, end} libraries: clang relies on the
linker automatically defining __start_SECNAME and __stop_SECNAME labels for
sections whose names are valid C identifiers.  This is a GNU ld extension not present
in the ELF gABI, also implemented by gold and lld, but not by Solaris ld.  To work around
this, I automatically link the sancov_{begin,end} libraries into every executable for now.
There seems to be now way to build individual startup objects like crtbegin.o/crtend.o,
so I've followed the lead of libclang_rt.asan-preinit which also contains just a single
object.

Reviewers: kcc, alekseyshl

Reviewed By: alekseyshl

Subscribers: srhines, kubamracek, mgorny, fedor.sergeev, llvm-commits, #sanitizers

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D40899

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@321373 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/asan/scripts/asan_symbolize.py b/lib/asan/scripts/asan_symbolize.py
index cd5d89ba2..68b6f093b 100755
--- a/lib/asan/scripts/asan_symbolize.py
+++ b/lib/asan/scripts/asan_symbolize.py
@@ -280,7 +280,7 @@ def BreakpadSymbolizerFactory(binary):
 def SystemSymbolizerFactory(system, addr, binary, arch):
   if system == 'Darwin':
     return DarwinSymbolizer(addr, binary, arch)
-  elif system in ['Linux', 'FreeBSD', 'NetBSD']:
+  elif system in ['Linux', 'FreeBSD', 'NetBSD', 'SunOS']:
     return Addr2LineSymbolizer(binary)
 
 
@@ -370,7 +370,7 @@ class SymbolizationLoop(object):
       self.binary_name_filter = binary_name_filter
       self.dsym_hint_producer = dsym_hint_producer
       self.system = os.uname()[0]
-      if self.system not in ['Linux', 'Darwin', 'FreeBSD', 'NetBSD']:
+      if self.system not in ['Linux', 'Darwin', 'FreeBSD', 'NetBSD','SunOS']:
         raise Exception('Unknown system')
       self.llvm_symbolizers = {}
       self.last_llvm_symbolizer = None