[asan][test] XFAIL Posix/no_asan_gen_globals.c on Solaris

[ro]

Summary

Posix/no_asan_gen_globals.c currently FAILs on Solaris:

$ nm no_asan_gen_globals.c.tmp.exe | grep ___asan_gen_
0809696a r .L___asan_gen_.1
0809a4cd r .L___asan_gen_.2
080908e2 r .L___asan_gen_.4
0809a4cd r .L___asan_gen_.5
0809a529 r .L___asan_gen_.7
0809a4cd r .L___asan_gen_.8

As detailed in Bug 47607, there are two factors here:

• clang plays games by emitting some local labels into the symbol table. When instead one uses -fno-integrated-as to have gas create the object files, they don't land in the objects in the first place.
• Unlike GNU ld, the Solaris ld doesn't support support -X/--discard-locals but instead relies on the assembler to follow its specification and not emit local labels.

Therefore this patch XFAILs the test on Solaris.

Tested on amd64-pc-solaris2.11 and x86_64-pc-linux-gnu.

[ro]

Ping? It's been almost a week.

compiler-rt/test/asan/TestCases/Posix/no_asan_gen_globals.c

 // FIXME: https://code.google.com/p/address-sanitizer/issues/detail?id=316
 // XFAIL: android
+// Bug 47607
+// XFAIL: solaris
 // Make sure ___asan_gen_* strings do not end up in the symbol table.
 
 // RUN: %clang_asan %s -o %t.exe
 // RUN: nm %t.exe | FileCheck %s
 
 int x, y, z;
 int main() { return 0; }
 // CHECK-NOT: ___asan_gen_