Mercurial > cpython-lru_cache-weakref
view Python/pyfpe.c @ 31487:f57f5ce22c8d legacy-trunk
SF patch #884022: dynamic execution profiling vs opcode prediction
(Contributed by Andrew I MacIntyre.)
disables opcode prediction when dynamic execution
profiling is in effect, so the profiling counters at
the top of the main interpreter loop in eval_frame()
are updated for each opcode.
| author | Raymond Hettinger <python@rcn.com> |
|---|---|
| date | Sun, 08 Feb 2004 19:59:27 +0000 |
| parents | 2dea40e40d9d |
| children |
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#include "pyconfig.h" #include "pyfpe.h" /* * The signal handler for SIGFPE is actually declared in an external * module fpectl, or as preferred by the user. These variable * definitions are required in order to compile Python without * getting missing externals, but to actually handle SIGFPE requires * defining a handler and enabling generation of SIGFPE. */ #ifdef WANT_SIGFPE_HANDLER jmp_buf PyFPE_jbuf; int PyFPE_counter = 0; #endif /* Have this outside the above #ifdef, since some picky ANSI compilers issue a warning when compiling an empty file. */ double PyFPE_dummy(void *dummy) { return 1.0; }
