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-rwxr-xr-xsrc/SConscript43
1 files changed, 28 insertions, 15 deletions
diff --git a/src/SConscript b/src/SConscript
index e59e424c3..3e7c4c9e9 100755
--- a/src/SConscript
+++ b/src/SConscript
@@ -933,10 +933,15 @@ def makeEnv(label, objsfx, strip = False, **kwargs):
# Start out with the compiler flags common to all compilers,
# i.e. they all use -g for opt and -g -pg for prof
-ccflags = {'debug' : [], 'opt' : ['-g'], 'fast' : [], 'prof' : ['-g', '-pg']}
+ccflags = {'debug' : [], 'opt' : ['-g'], 'fast' : [], 'prof' : ['-g', '-pg'],
+ 'perf' : ['-g']}
-# Start out with the linker flags common to all linkers, i.e. -pg for prof.
-ldflags = {'debug' : [], 'opt' : [], 'fast' : [], 'prof' : ['-pg']}
+# Start out with the linker flags common to all linkers, i.e. -pg for
+# prof, and -lprofiler for perf. The -lprofile flag is surrounded by
+# no-as-needed and as-needed as the binutils linker is too clever and
+# simply doesn't link to the library otherwise.
+ldflags = {'debug' : [], 'opt' : [], 'fast' : [], 'prof' : ['-pg'],
+ 'perf' : ['-Wl,--no-as-needed', '-lprofiler', '-Wl,--as-needed']}
if env['GCC']:
if sys.platform == 'sunos5':
@@ -944,24 +949,24 @@ if env['GCC']:
else:
ccflags['debug'] += ['-ggdb3']
ldflags['debug'] += ['-O0']
- # opt, fast and prof all share the same cc flags
- for target in ['opt', 'fast', 'prof']:
+ # opt, fast, prof and perf all share the same cc flags
+ for target in ['opt', 'fast', 'prof', 'perf']:
ccflags[target] += ['-O3']
elif env['SUNCC']:
ccflags['debug'] += ['-g0']
ccflags['opt'] += ['-O']
- ccflags['fast'] += ['-fast']
- ccflags['prof'] += ['-fast']
+ for target in ['fast', 'prof', 'perf']:
+ ccflags[target] += ['-fast']
elif env['ICC']:
ccflags['debug'] += ['-g', '-O0']
ccflags['opt'] += ['-O']
- ccflags['fast'] += ['-fast']
- ccflags['prof'] += ['-fast']
+ for target in ['fast', 'prof', 'perf']:
+ ccflags[target] += ['-fast']
elif env['CLANG']:
ccflags['debug'] += ['-g', '-O0']
- ccflags['opt'] += ['-O3']
- ccflags['fast'] += ['-O3']
- ccflags['prof'] += ['-O3']
+ # opt, fast, prof and perf all share the same cc flags
+ for target in ['opt', 'fast', 'prof', 'perf']:
+ ccflags[target] += ['-O3']
else:
print 'Unknown compiler, please fix compiler options'
Exit(1)
@@ -971,8 +976,9 @@ else:
# need. We try to identify the needed environment for each target; if
# we can't, we fall back on instantiating all the environments just to
# be safe.
-target_types = ['debug', 'opt', 'fast', 'prof']
-obj2target = {'do': 'debug', 'o': 'opt', 'fo': 'fast', 'po': 'prof'}
+target_types = ['debug', 'opt', 'fast', 'prof', 'perf']
+obj2target = {'do': 'debug', 'o': 'opt', 'fo': 'fast', 'po': 'prof',
+ 'gpo' : 'perf'}
def identifyTarget(t):
ext = t.split('.')[-1]
@@ -1010,11 +1016,18 @@ if 'fast' in needed_envs:
CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
LINKFLAGS = Split(ldflags['fast']))
-# Profiled binary
+# Profiled binary using gprof
if 'prof' in needed_envs:
makeEnv('prof', '.po',
CCFLAGS = Split(ccflags['prof']),
CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
LINKFLAGS = Split(ldflags['prof']))
+# Profiled binary using google-pprof
+if 'perf' in needed_envs:
+ makeEnv('perf', '.gpo',
+ CCFLAGS = Split(ccflags['perf']),
+ CPPDEFINES = ['NDEBUG', 'TRACING_ON=0'],
+ LINKFLAGS = Split(ldflags['perf']))
+
Return('envList')