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| author | Mark Wielaard <mjw@redhat.com> | 2009-07-14 00:30:55 +0200 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-07-14 00:30:55 +0200 |
| commit | ec6fdef5a46f450c8b7a52b491de6a17155101df (patch) | |
| tree | d1e2c6ff95f381826f7f94e43a688c6a9951d6b0 /buildrun.cxx | |
| parent | 4a4edc21a14792a4cc240b601912734027945ae8 (diff) | |
| download | systemtap-steved-ec6fdef5a46f450c8b7a52b491de6a17155101df.tar.gz systemtap-steved-ec6fdef5a46f450c8b7a52b491de6a17155101df.tar.xz systemtap-steved-ec6fdef5a46f450c8b7a52b491de6a17155101df.zip | |
Make kernel opt-level the default again.
* main.cxx (main): Default gcc_flags to kernel opt-level (empty).
* buildrun.cxx (compile_pass): Add -freorder-blocks back, document choices.
* stap.1.in: Document new default opt-level.
* testsuite/systemtap.base/cache.exp: Adjust for new caching results.
Diffstat (limited to 'buildrun.cxx')
| -rw-r--r-- | buildrun.cxx | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/buildrun.cxx b/buildrun.cxx index b54a0534..9cc9d98a 100644 --- a/buildrun.cxx +++ b/buildrun.cxx @@ -187,6 +187,12 @@ compile_pass (systemtap_session& s) // if (s.keep_tmpdir) // o << "CFLAGS += -fverbose-asm -save-temps" << endl; + // Kernels can be compiled with CONFIG_CC_OPTIMIZE_FOR_SIZE to select + // -Os, otherwise -O2 is the default. + o << "EXTRA_CFLAGS += -freorder-blocks" << endl; // improve on -Os + + // Allow user to override default optimization when so requested. + // Last -OX wins. o << "EXTRA_CFLAGS += " << s.gcc_flags << endl; // Add -O[0123s] // o << "CFLAGS += -fno-unit-at-a-time" << endl; |