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author | Mark Wielaard <mjw@redhat.com> | 2009-07-14 11:47:46 +0200 |
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committer | Mark Wielaard <mjw@redhat.com> | 2009-07-14 11:47:46 +0200 |
commit | 011165968c00e4125dfb9ee132e79f65dbea50c4 (patch) | |
tree | 1f81918af2c85ce8e0d0dddb0e5132c03085f1a2 /main.cxx | |
parent | ec6fdef5a46f450c8b7a52b491de6a17155101df (diff) | |
download | systemtap-steved-011165968c00e4125dfb9ee132e79f65dbea50c4.tar.gz systemtap-steved-011165968c00e4125dfb9ee132e79f65dbea50c4.tar.xz systemtap-steved-011165968c00e4125dfb9ee132e79f65dbea50c4.zip |
Remove -O[0123s] gcc optimization flags for gcc pass 4 speedups again.
We cannot guarantee that (un)optimized code compiles and/or generates
fully functional code, so don't tempt the user to try it out.
* session.h (struct systemtap_session): Remove gcc_flags string field.
* hash.cxx (find_script_hash): Don't add gcc_flags.
* main.cxx (usage): Remove -O[0123s] documentation.
(main): Don't use gcc_flags.
* buildrun.cxx (compile_pass): Don't add gcc_flags to EXTRA_CFLAGS.
* stap1.in: Remove -O[0123s] documentation.
* testsuite/systemtap.base/cache.exp: Remove tests for -O[0123s].
Diffstat (limited to 'main.cxx')
-rw-r--r-- | main.cxx | 27 |
1 files changed, 1 insertions, 26 deletions
@@ -111,14 +111,6 @@ usage (systemtap_session& s, int exitcode) << " " << s.module_name << endl << " -o FILE send script output to file, instead of stdout. This supports" << endl << " strftime(3) formats for FILE" << endl - << " -O[0123s] optimization to use for C code. Passed to gcc in pass 4." << endl - << " -O Alias for -O1" << endl - << " -O0 Fast compilation" << endl - << " -O1 Optimize, takes a bit more time" << endl - << " -O2 Optimize more, takes more time" << endl - << " -O3 Optimize even more, takes even more time" << endl - << " -Os Optimize for size, like -O2 but tuned for small code size" << endl - << " Default is the kernel opt-level default (-O2 or -Os)." << endl << " -c CMD start the probes, run CMD, and exit when it finishes" << endl << " -x PID sets target() to PID" << endl << " -F run as on-file flight recorder with -o." << endl @@ -411,7 +403,6 @@ main (int argc, char * const argv []) s.ignore_dwarf = false; s.load_only = false; s.skip_badvars = false; - s.gcc_flags = ""; // Default to kernel opt-level. // Location of our signing certificate. // If we're root, use the database in SYSCONFDIR, otherwise @@ -496,7 +487,7 @@ main (int argc, char * const argv []) { "vp", 1, &long_opt, LONG_OPT_VERBOSE_PASS }, { NULL, 0, NULL, 0 } }; - int grc = getopt_long (argc, argv, "hVMvtp:I:e:o:O::R:r:m:kgPc:x:D:bs:uqwl:d:L:FS:", + int grc = getopt_long (argc, argv, "hVMvtp:I:e:o:R:r:m:kgPc:x:D:bs:uqwl:d:L:FS:", long_options, NULL); if (grc < 0) break; @@ -560,22 +551,6 @@ main (int argc, char * const argv []) s.output_file = string (optarg); break; - case 'O': - if (optarg == NULL) - s.gcc_flags = "-O1"; - else - s.gcc_flags = "-O" + string (optarg); - - if (s.gcc_flags != "-O0" && s.gcc_flags != "-O1" - && s.gcc_flags != "-O2" && s.gcc_flags != "-O3" - && s.gcc_flags != "-Os") - { - cerr << "'" << s.gcc_flags << "'" - << " isn't a valid optimization option." << endl; - usage (s, 1); - } - break; - case 'R': s.runtime_path = string (optarg); break; |