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| author | Henrik Edin <henrik.edin@mongodb.com> | 2018-04-18 16:42:05 -0400 |
|---|---|---|
| committer | Henrik Edin <henrik.edin@mongodb.com> | 2018-04-19 10:13:12 -0400 |
| commit | 548236bfee7646373e4e0a5f6d8f9733a558dd45 (patch) | |
| tree | b98422bd394d539bcc2b4e2c4add493fa8b6b8d3 /SConstruct | |
| parent | eeded592270082dba3dd59d65c8e94128030af18 (diff) | |
| download | mongo-548236bfee7646373e4e0a5f6d8f9733a558dd45.tar.gz | |
SERVER-34472 Optimize Embedded SDK for size.
Diffstat (limited to 'SConstruct')
| -rw-r--r-- | SConstruct | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/SConstruct b/SConstruct index 579ee50b3e5..a3e9f0556fe 100644 --- a/SConstruct +++ b/SConstruct @@ -236,7 +236,7 @@ add_option('spider-monkey-dbg', ) add_option('opt', - choices=['on', 'off'], + choices=['on', 'size', 'off'], const='on', help='Enable compile-time optimization', nargs='?', @@ -891,8 +891,11 @@ dbg_opt_mapping = { ( "off", None ) : ( False, True ), ( "off", "on" ) : ( False, True ), ( "off", "off" ) : ( False, False ), + ( "on", "size" ) : ( True, True ), + ( "off", "size" ) : ( False, True ), } debugBuild, optBuild = dbg_opt_mapping[(get_option('dbg'), get_option('opt'))] +optBuildForSize = True if optBuild and get_option('opt') == "size" else False if releaseBuild and (debugBuild or not optBuild): print("Error: A --release build may not have debugging, and must have optimization") @@ -1617,11 +1620,14 @@ elif env.TargetOSIs('windows'): env.Append(CCFLAGS=[winRuntimeLibMap[(dynamicCRT, debugBuild)]]) if optBuild: + # /O1: optimize for size # /O2: optimize for speed (as opposed to size) # /Oy-: disable frame pointer optimization (overrides /O2, only affects 32-bit) # /INCREMENTAL: NO - disable incremental link - avoid the level of indirection for function # calls - env.Append( CCFLAGS=["/O2", "/Oy-"] ) + + optStr = "/O2" if not optBuildForSize else "/O1" + env.Append( CCFLAGS=[optStr, "/Oy-"] ) env.Append( LINKFLAGS=["/INCREMENTAL:NO"]) else: env.Append( CCFLAGS=["/Od"] ) @@ -1730,8 +1736,10 @@ if env.TargetOSIs('posix'): env.Append( CCFLAGS=["-fprofile-arcs", "-ftest-coverage"] ) env.Append( LINKFLAGS=["-fprofile-arcs", "-ftest-coverage"] ) - if optBuild: + if optBuild and not optBuildForSize: env.Append( CCFLAGS=["-O2"] ) + elif optBuild and optBuildForSize: + env.Append( CCFLAGS=["-Os"] ) else: env.Append( CCFLAGS=["-O0"] ) |