make our code a little more standards compliant

pretty close to compiling w/ suns compiler

briefly:
add dummy return after panic()/fatal()
split out flags by compiler vendor
include cstring and cmath where appropriate
use std namespace for string ops

SConstruct:
    Add code to detect compiler and choose cflags based on detected compiler
    Fix zlib check to work with suncc
src/SConscript:
    split out flags by compiler vendor
src/arch/sparc/isa/decoder.isa:
    use correct namespace for sqrt
src/arch/sparc/isa/formats/basic.isa:
    add dummy return around panic
src/arch/sparc/isa/formats/integerop.isa:
    use correct namespace for stringops
src/arch/sparc/isa/includes.isa:
    include cstring and cmath where appropriate
src/arch/sparc/isa_traits.hh:
    remove dangling comma
src/arch/sparc/system.cc:
    dummy return to make sun cc front end happy
src/arch/sparc/tlb.cc:
src/base/compression/lzss_compression.cc:
    use std namespace for string ops
src/arch/sparc/utility.hh:
    no reason to say something is unsigned unsigned int
src/base/compression/null_compression.hh:
    dummy returns to for suncc front end
src/base/cprintf.hh:
    use standard variadic argument syntax instead of gnuc specefic renaming
src/base/hashmap.hh:
    don't need to define hash for suncc
src/base/hostinfo.cc:
    need stdio.h for sprintf
src/base/loader/object_file.cc:
    munmap is in std namespace not null
src/base/misc.hh:
    use M5 generic noreturn macros
    use standard variadic macro __VA_ARGS__
src/base/pollevent.cc:
    we need file.h for file flags
src/base/random.cc:
    mess with include files to make suncc happy
src/base/remote_gdb.cc:
    malloc memory for function instead of having a non-constant in an array size
src/base/statistics.hh:
    use std namespace for floor
src/base/stats/text.cc:
    include math.h for rint (cmath won't work)
src/base/time.cc:
    use suncc version of ctime_r
src/base/time.hh:
    change macro to work with both gcc and suncc
src/base/timebuf.hh:
    include cstring from memset and use std::
src/base/trace.hh:
    change variadic macros to be normal format
src/cpu/SConscript:
    add dummy returns where appropriate
src/cpu/activity.cc:
    include cstring for memset
src/cpu/exetrace.hh:
    include cstring fro memcpy
src/cpu/simple/base.hh:
    add dummy return for panic
src/dev/baddev.cc:
src/dev/pciconfigall.cc:
src/dev/platform.cc:
src/dev/sparc/t1000.cc:
    add dummy return where appropriate
src/dev/ide_atareg.h:
    make define work for both gnuc and suncc
src/dev/io_device.hh:
    add dummy returns where approirate
src/dev/pcidev.hh:
src/mem/cache/cache_impl.hh:
src/mem/cache/miss/blocking_buffer.cc:
src/mem/cache/tags/lru.hh:
src/mem/cache/tags/split.hh:
src/mem/cache/tags/split_lifo.hh:
src/mem/cache/tags/split_lru.hh:
src/mem/dram.cc:
src/mem/packet.cc:
src/mem/port.cc:
    include cstring for string ops
src/dev/sparc/mm_disk.cc:
    add dummy return where appropriate
    include cstring for string ops
src/mem/cache/miss/blocking_buffer.hh:
src/mem/port.hh:
    Add dummy return where appropriate
src/mem/cache/tags/iic.cc:
    cast hastSets to double for log() call
src/mem/physical.cc:
    cast pmemAddr to char* for munmap
src/sim/byteswap.hh:
    make define work for suncc and gnuc

--HG--
extra : convert_revision : ef8a1f1064e43b6c39838a85c01aee4f795497bd

src/SConscript

@@ -311,30 +311,41 @@ def makeEnv(label, objsfx, strip = False, **kwargs):
     envList.append(newEnv)
 
 # Debug binary
-# Solaris seems to have some issue with DWARF2 debugging information, it's ok
-# with stabs though
-if sys.platform == 'sunos5':
-   debug_flag = '-gstabs+'
+ccflags = {}
+if env['GCC']:
+    if sys.platform == 'sunos5':
+        ccflags['debug'] = '-gstabs+'
+    else:
+        ccflags['debug'] = '-ggdb3'
+    ccflags['opt'] = '-g -O3'
+    ccflags['fast'] = '-O3'
+    ccflags['prof'] = '-O3 -g -pg'
+elif env['SUNCC']:
+    ccflags['debug'] = '-g0'
+    ccflags['opt'] = '-g -O'
+    ccflags['fast'] = '-fast'
+    ccflags['prof'] = '-fast -g -pg'
 else:
-   debug_flag = '-ggdb3'
+    print 'Unknown compiler, please fix compiler options'
+    Exit(1)    
 
 makeEnv('debug', '.do',
-        CCFLAGS = Split('%s -O0' % debug_flag),
+        CCFLAGS = Split(ccflags['debug']),
         CPPDEFINES = ['DEBUG', 'TRACING_ON=1'])
 
 # Optimized binary
 makeEnv('opt', '.o',
-        CCFLAGS = Split('-g -O3'),
+        CCFLAGS = Split(ccflags['opt']),
         CPPDEFINES = ['TRACING_ON=1'])
 
 # "Fast" binary
 makeEnv('fast', '.fo', strip = True,
-        CCFLAGS = Split('-O3'),
+        CCFLAGS = Split(ccflags['fast']),
         CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'])
 
 # Profiled binary
 makeEnv('prof', '.po',
-        CCFLAGS = Split('-O3 -g -pg'),
+        CCFLAGS = Split(ccflags['prof']),
         CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
         LINKFLAGS = '-pg')