[Bug libitm/52042] New: libitm.c/clone-1.c and libitm.c/stackundo.c execution tests are not pie compatible

["howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52042

             Bug #: 52042
           Summary: libitm.c/clone-1.c and libitm.c/stackundo.c execution
                    tests are not pie compatible
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libitm
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: howarth@nitro.med.uc.edu


On x86_64-apple-darwin11, the libitm testsuite failures...

FAIL: libitm.c/clone-1.c execution test
FAIL: libitm.c/stackundo.c execution test

are seen at both -m32/-m64. These test cases don't fail within
Apple gdb due to its default disabling of aslr. If aslr is enabled within gdb,
the following backtraces are seen...

gdb ./stackundo.exe
GNU gdb 6.3.50-20050815 (Apple version gdb-1708) (Thu Nov  3 21:59:02 UTC 2011)
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared
libraries .... done

(gdb) set disable-aslr off
(gdb) r
Starting program:
/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.2.0/libitm/testsuite/stackundo.exe 
Reading symbols for shared libraries + done
Reading symbols for shared libraries ++++........................ done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x00000001000010b0
clone_entry_compare (a=0x1000010a0, b=0x1000010b0) at
../../../gcc-4.7-20120126/libitm/clone.cc:105
105      if (aa->orig < bb->orig)
(gdb) bt
#0  clone_entry_compare (a=0x1000010a0, b=0x1000010b0) at
../../../gcc-4.7-20120126/libitm/clone.cc:105
#1  0x00007fff8ddd4894 in _qsort ()
#2  0x00000001016948c6 in _ITM_registerTMCloneTable (xent=0x1000010a0, size=2)
at ../../../gcc-4.7-20120126/libitm/clone.cc:155
Current language:  auto; currently c++


gdb ./clone-1.exeGNU gdb 6.3.50-20050815 (Apple version gdb-1708) (Thu Nov  3
21:59:02 UTC 2011)Copyright 2004 Free Software Foundation, Inc.GDB is free
software, covered by the GNU General Public License, and you arewelcome to
change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "x86_64-apple-darwin"...Reading symbols for shared
libraries .... done

(gdb) set disable-aslr off
(gdb) r
Starting program:
/sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.2.0/libitm/testsuite/clone-1.exe 
Reading symbols for shared libraries + done
Reading symbols for shared libraries ++++........................ done

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x00000001000010a8
clone_entry_compare (a=0x100001098, b=0x1000010a8) at
../../../gcc-4.7-20120126/libitm/clone.cc:105
105      if (aa->orig < bb->orig)
(gdb) bt
#0  clone_entry_compare (a=0x100001098, b=0x1000010a8) at
../../../gcc-4.7-20120126/libitm/clone.cc:105
#1  0x00007fff8ddd4894 in _qsort ()
#2  0x000000010299a8c6 in _ITM_registerTMCloneTable (xent=0x100001098, size=2)
at ../../../gcc-4.7-20120126/libitm/clone.cc:155
Current language:  auto; currently c++

Using built-in specs.
COLLECT_GCC=gcc-fsf-4.7
COLLECT_LTO_WRAPPER=/sw/lib/gcc4.7/libexec/gcc/x86_64-apple-darwin11.2.0/4.7.0/lto-wrapper
Target: x86_64-apple-darwin11.2.0
Configured with: ../gcc-4.7-20120126/configure --prefix=/sw
--prefix=/sw/lib/gcc4.7 --mandir=/sw/share/man --infodir=/sw/lib/gcc4.7/info
--with-build-config=bootstrap-lto --enable-stage1-languages=c,lto
--enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw
--with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw
--with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
--program-suffix=-fsf-4.7 --enable-checking=yes --enable-cloog-backend=isl
Thread model: posix
gcc version 4.7.0 20120126 (experimental) (GCC)