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# -*- mode: python -*-
Import("env")
Import("has_option")
Import("debugBuild")
files = [
'src/base/dynamic_annotations.c',
'src/base/elf_mem_image.cc',
'src/base/logging.cc',
'src/base/spinlock.cc',
'src/base/spinlock_internal.cc',
'src/base/sysinfo.cc',
'src/base/vdso_support.cc',
'src/central_freelist.cc',
'src/common.cc',
'src/internal_logging.cc',
'src/malloc_extension.cc',
'src/malloc_hook.cc',
'src/memfs_malloc.cc',
'src/page_heap.cc',
'src/sampler.cc',
'src/span.cc',
'src/stack_trace_table.cc',
'src/stacktrace.cc',
'src/static_vars.cc',
'src/symbolize.cc',
'src/thread_cache.cc',
]
if env.TargetOSIs('windows'):
files += [
'src/tcmalloc.cc',
'src/windows/port.cc',
'src/windows/system-alloc.cc',
'src/fake_stacktrace_scope.cc',
]
else:
files += [
'src/emergency_malloc_for_stacktrace.cc',
'src/maybe_threads.cc',
'src/system-alloc.cc',
]
if not debugBuild:
files += ['src/tcmalloc.cc'],
else:
files += ['src/debugallocation.cc']
if has_option( 'use-cpu-profiler' ):
files += [
'src/profile-handler.cc',
'src/profiledata.cc',
'src/profiler.cc',
]
__malloc_hook_fragment = '''
#include <malloc.h>
void* (* volatile __malloc_hook)(size_t, const void*) = 0;
'''
def __checkMallocHookVolatile(check_context):
check_context.Message("Checking if __malloc_hook is declared volatile... ")
is_malloc_hook_volatile = check_context.TryCompile(__malloc_hook_fragment, '.cc')
check_context.Result(is_malloc_hook_volatile)
malloc_hook_define = 'MALLOC_HOOK_MAYBE_VOLATILE='
if is_malloc_hook_volatile:
malloc_hook_define += 'volatile'
check_context.env.Append(CPPDEFINES=[malloc_hook_define])
conf = Configure(env.Clone(), custom_tests=dict(CheckMallocHookVolatile=__checkMallocHookVolatile))
conf.CheckMallocHookVolatile()
if has_option('use-cpu-profiler'):
if not conf.CheckLib('unwind', autoadd=False):
env.ConfError("Compiling with --use-cpu-profiler requires having libunwind installed")
conf.env.Append(
CPPDEFINES=["NO_FRAME_POINTER", ("HAVE_LIBUNWIND_H", "1"), 'HAVE_UCONTEXT_H'],
SYSLIBDEPS=['unwind']
)
env = conf.Finish()
env.Append(CPPPATH=["build_" + env["TARGET_OS"] + "_" + env["TARGET_ARCH"]])
env.Append( CPPDEFINES=[ "NO_TCMALLOC_SAMPLES", "NO_HEAP_CHECK"] )
# The build system doesn't define NDEBUG globally for historical reasons, however, TCMalloc
# expects that NDEBUG is used to select between preferring the mmap or the sbrk allocator. For
# non-debug builds, we want to prefer the sbrk allocator since this is TCMallocs preferred
# production deployment configuration. See the use of NDEBUG and kDebugMode in
# src/system-alloc.cc for more details.
if not debugBuild:
env.Append( CPPDEFINES=["NDEBUG"] )
env.Prepend( CPPPATH=["src/"] )
def removeIfPresent(lst, item):
try:
lst.remove(item)
except ValueError:
pass
for to_remove in ['-Werror', "-Wsign-compare","-Wall"]:
removeIfPresent(env['CCFLAGS'], to_remove)
# GCC on PowerPC under C++11 mode does not define __linux which gperftools depends on
if env['TARGET_ARCH'] == 'ppc64le':
env.Append( CPPDEFINES=[ "__linux"] )
env.Library(
target='tcmalloc_minimal',
source=files,
)
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