fix unaligned memory offset and some small fixes to interrupt binning

code

arch/alpha/alpha_memory.cc:
    Fixed unaligned trap faults
arch/alpha/ev5.cc:
    little more verbose faulting information
kern/linux/linux_system.cc:
    more descriptive errors, and the correct offsets from symbols
sim/system.cc:
    load local pal symbols

--HG--
extra : convert_revision : 0c81badf77321d5e1a060dcae2d42204e5a1fc84

SConscript

@@ -382,6 +382,7 @@ extra_libraries = []
 if env['USE_MYSQL']:
     sources += mysql_sources
     env.Append(CPPDEFINES = 'USE_MYSQL')
+    env.Append(CPPDEFINES = 'STATS_BINNING')
     env.Append(CPPPATH=['/usr/local/include/mysql', '/usr/include/mysql'])
     env.Append(LIBS=['z'])
     if os.path.isdir('/usr/lib64'):