mirror of https://github.com/python/cpython
Change the name of the macro used by --with-tsc builds to the less
inscrutable READ_TIMESTAMP.
This commit is contained in:
Michael W. Hudson
parent
46e6d92dc1
commit
75eabd2944
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@ -17,8 +17,10 @@
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#include <ctype.h>
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#ifndef WITH_TSC
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#define rdtscll(var)
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#else /*WITH_TSC defined*/
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#define READ_TIMESTAMP(var)
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#else
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typedef unsigned long long uint64;
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@ -26,7 +28,7 @@ typedef unsigned long long uint64;
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section should work for GCC on any PowerPC platform,
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irrespective of OS. POWER? Who knows :-) */
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#define rdtscll(var) ppc_getcounter(&var)
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#define READ_TIMESTAMP(var) ppc_getcounter(&var)
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static void
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ppc_getcounter(uint64 *v)
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@ -45,9 +47,10 @@ ppc_getcounter(uint64 *v)
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((long*)(v))[1] = tb;
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}
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#else /* this section is for linux/x86 */
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#else /* this is for linux/x86 (and probably any other GCC/x86 combo) */
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#include <asm/msr.h>
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#define READ_TIMESTAMP(val) \
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__asm__ __volatile__("rdtsc" : "=A" (val))
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#endif
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@ -575,10 +578,10 @@ PyEval_EvalFrame(PyFrameObject *f)
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uint64 inst0, inst1, loop0, loop1, intr0 = 0, intr1 = 0;
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int ticked = 0;
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rdtscll(inst0);
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rdtscll(inst1);
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rdtscll(loop0);
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rdtscll(loop1);
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READ_TIMESTAMP(inst0);
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READ_TIMESTAMP(inst1);
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READ_TIMESTAMP(loop0);
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READ_TIMESTAMP(loop1);
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/* shut up the compiler */
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opcode = 0;
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@ -748,7 +751,7 @@ PyEval_EvalFrame(PyFrameObject *f)
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or a continue, preventing inst1 from being set
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on the way out of the loop.
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*/
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rdtscll(inst1);
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READ_TIMESTAMP(inst1);
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loop1 = inst1;
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}
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dump_tsc(opcode, ticked, inst0, inst1, loop0, loop1,
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@ -757,7 +760,7 @@ PyEval_EvalFrame(PyFrameObject *f)
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inst1 = 0;
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intr0 = 0;
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intr1 = 0;
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rdtscll(loop0);
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READ_TIMESTAMP(loop0);
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#endif
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assert(stack_pointer >= f->f_valuestack); /* else underflow */
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assert(STACK_LEVEL() <= f->f_stacksize); /* else overflow */
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@ -879,7 +882,7 @@ PyEval_EvalFrame(PyFrameObject *f)
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#endif
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/* Main switch on opcode */
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rdtscll(inst0);
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READ_TIMESTAMP(inst0);
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switch (opcode) {
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@ -1638,9 +1641,9 @@ PyEval_EvalFrame(PyFrameObject *f)
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v = SECOND();
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u = THIRD();
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STACKADJ(-3);
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rdtscll(intr0);
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READ_TIMESTAMP(intr0);
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err = exec_statement(f, u, v, w);
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rdtscll(intr1);
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READ_TIMESTAMP(intr1);
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Py_DECREF(u);
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Py_DECREF(v);
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Py_DECREF(w);
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@ -2016,9 +2019,9 @@ PyEval_EvalFrame(PyFrameObject *f)
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x = NULL;
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break;
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}
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rdtscll(intr0);
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READ_TIMESTAMP(intr0);
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x = PyEval_CallObject(x, w);
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rdtscll(intr1);
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READ_TIMESTAMP(intr1);
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Py_DECREF(w);
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SET_TOP(x);
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if (x != NULL) continue;
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@ -2032,9 +2035,9 @@ PyEval_EvalFrame(PyFrameObject *f)
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"no locals found during 'import *'");
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break;
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}
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rdtscll(intr0);
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READ_TIMESTAMP(intr0);
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err = import_all_from(x, v);
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rdtscll(intr1);
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READ_TIMESTAMP(intr1);
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PyFrame_LocalsToFast(f, 0);
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Py_DECREF(v);
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if (err == 0) continue;
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@ -2043,9 +2046,9 @@ PyEval_EvalFrame(PyFrameObject *f)
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case IMPORT_FROM:
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w = GETITEM(names, oparg);
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v = TOP();
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rdtscll(intr0);
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READ_TIMESTAMP(intr0);
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x = import_from(v, w);
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rdtscll(intr1);
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READ_TIMESTAMP(intr1);
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PUSH(x);
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if (x != NULL) continue;
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break;
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@ -2199,9 +2202,9 @@ PyEval_EvalFrame(PyFrameObject *f)
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} else
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Py_INCREF(func);
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sp = stack_pointer;
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rdtscll(intr0);
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READ_TIMESTAMP(intr0);
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x = ext_do_call(func, &sp, flags, na, nk);
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rdtscll(intr1);
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READ_TIMESTAMP(intr1);
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stack_pointer = sp;
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Py_DECREF(func);
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@ -2314,7 +2317,7 @@ PyEval_EvalFrame(PyFrameObject *f)
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on_error:
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rdtscll(inst1);
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READ_TIMESTAMP(inst1);
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/* Quickly continue if no error occurred */
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@ -2327,7 +2330,7 @@ PyEval_EvalFrame(PyFrameObject *f)
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"XXX undetected error\n");
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else {
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#endif
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rdtscll(loop1);
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READ_TIMESTAMP(loop1);
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continue; /* Normal, fast path */
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#ifdef CHECKEXC
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}
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@ -2446,7 +2449,7 @@ fast_block_end:
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if (why != WHY_NOT)
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break;
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rdtscll(loop1);
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READ_TIMESTAMP(loop1);
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} /* main loop */
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@ -3543,9 +3546,9 @@ call_function(PyObject ***pp_stack, int oparg
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else {
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PyObject *callargs;
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callargs = load_args(pp_stack, na);
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rdtscll(*pintr0);
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READ_TIMESTAMP(*pintr0);
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C_TRACE(x=PyCFunction_Call(func,callargs,NULL));
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rdtscll(*pintr1);
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READ_TIMESTAMP(*pintr1);
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Py_XDECREF(callargs);
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}
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} else {
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@ -3563,12 +3566,12 @@ call_function(PyObject ***pp_stack, int oparg
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n++;
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} else
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Py_INCREF(func);
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rdtscll(*pintr0);
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READ_TIMESTAMP(*pintr0);
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if (PyFunction_Check(func))
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x = fast_function(func, pp_stack, n, na, nk);
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else
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x = do_call(func, pp_stack, na, nk);
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rdtscll(*pintr1);
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READ_TIMESTAMP(*pintr1);
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Py_DECREF(func);
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}
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