ruby/vm_exec.c

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4.3 KiB
C
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/* -*-c-*- */
/**********************************************************************
vm_exec.c -
$Author$
Copyright (C) 2004-2007 Koichi Sasada
**********************************************************************/
#include <math.h>
#if VM_COLLECT_USAGE_DETAILS
static void vm_analysis_insn(int insn);
#endif
* probes.d: add DTrace probe declarations. [ruby-core:27448] * array.c (empty_ary_alloc, ary_new): added array create DTrace probe. * compile.c (rb_insns_name): allowing DTrace probes to access instruction sequence name. * Makefile.in: translate probes.d file to appropriate header file. * common.mk: declare dependencies on the DTrace header. * configure.in: add a test for existence of DTrace. * eval.c (setup_exception): add a probe for when an exception is raised. * gc.c: Add DTrace probes for mark begin and end, and sweep begin and end. * hash.c (empty_hash_alloc): Add a probe for hash allocation. * insns.def: Add probes for function entry and return. * internal.h: function declaration for compile.c change. * load.c (rb_f_load): add probes for `load` entry and exit, require entry and exit, and wrapping search_required for load path search. * object.c (rb_obj_alloc): added a probe for general object creation. * parse.y (yycompile0): added a probe around parse and compile phase. * string.c (empty_str_alloc, str_new): DTrace probes for string allocation. * test/dtrace/*: tests for DTrace probes. * vm.c (vm_invoke_proc): add probes for function return on exception raise, hash create, and instruction sequence execution. * vm_core.h: add probe declarations for function entry and exit. * vm_dump.c: add probes header file. * vm_eval.c (vm_call0_cfunc, vm_call0_cfunc_with_frame): add probe on function entry and return. * vm_exec.c: expose instruction number to instruction name function. * vm_insnshelper.c: add function entry and exit probes for cfunc methods. * vm_insnhelper.h: vm usage information is always collected, so uncomment the functions. 12 19:14:50 2012 Akinori MUSHA <knu@iDaemons.org> * configure.in (isinf, isnan): isinf() and isnan() are macros on DragonFly which cannot be found by AC_REPLACE_FUNCS(). This workaround enforces the fact that they exist on DragonFly. 12 15:59:38 2012 Shugo Maeda <shugo@ruby-lang.org> * vm_core.h (rb_call_info_t::refinements), compile.c (new_callinfo), vm_insnhelper.c (vm_search_method): revert r37616 because it's too slow. [ruby-dev:46477] * test/ruby/test_refinement.rb (test_inline_method_cache): skip the test until the bug is fixed efficiently. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37631 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2012-11-13 01:52:12 +04:00
#if USE_INSNS_COUNTER
static size_t rb_insns_counter[VM_INSTRUCTION_SIZE];
static void
vm_insns_counter_count_insn(int insn)
{
rb_insns_counter[insn]++;
}
__attribute__((destructor))
static void
vm_insns_counter_show_results_at_exit(void)
{
int insn_end = (ruby_vm_event_enabled_global_flags & ISEQ_TRACE_EVENTS)
? VM_INSTRUCTION_SIZE : VM_INSTRUCTION_SIZE / 2;
size_t total = 0;
for (int insn = 0; insn < insn_end; insn++)
total += rb_insns_counter[insn];
for (int insn = 0; insn < insn_end; insn++) {
fprintf(stderr, "[RUBY_INSNS_COUNTER]\t%-32s%'12"PRIuSIZE" (%4.1f%%)\n",
insn_name(insn), rb_insns_counter[insn],
100.0 * rb_insns_counter[insn] / total);
}
}
#else
static void vm_insns_counter_count_insn(int insn) {}
#endif
#if VMDEBUG > 0
#define DECL_SC_REG(type, r, reg) register type reg_##r
#elif defined(__GNUC__) && defined(__x86_64__)
#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("r" reg)
#elif defined(__GNUC__) && defined(__i386__)
#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("e" reg)
#elif defined(__GNUC__) && defined(__powerpc64__)
#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("r" reg)
#elif defined(__GNUC__) && defined(__aarch64__)
#define DECL_SC_REG(type, r, reg) register type reg_##r __asm__("x" reg)
#else
#define DECL_SC_REG(type, r, reg) register type reg_##r
#endif
/* #define DECL_SC_REG(r, reg) VALUE reg_##r */
#if !OPT_CALL_THREADED_CODE
static VALUE
vm_exec_core(rb_execution_context_t *ec, VALUE initial)
{
#if OPT_STACK_CACHING
#if 0
#elif __GNUC__ && __x86_64__
DECL_SC_REG(VALUE, a, "12");
DECL_SC_REG(VALUE, b, "13");
#else
register VALUE reg_a;
register VALUE reg_b;
#endif
#endif
#if defined(__GNUC__) && defined(__i386__)
DECL_SC_REG(const VALUE *, pc, "di");
DECL_SC_REG(rb_control_frame_t *, cfp, "si");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && defined(__x86_64__)
DECL_SC_REG(const VALUE *, pc, "14");
DECL_SC_REG(rb_control_frame_t *, cfp, "15");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && defined(__powerpc64__)
DECL_SC_REG(const VALUE *, pc, "14");
DECL_SC_REG(rb_control_frame_t *, cfp, "15");
#define USE_MACHINE_REGS 1
#elif defined(__GNUC__) && defined(__aarch64__)
DECL_SC_REG(const VALUE *, pc, "19");
DECL_SC_REG(rb_control_frame_t *, cfp, "20");
#define USE_MACHINE_REGS 1
#else
register rb_control_frame_t *reg_cfp;
const VALUE *reg_pc;
#endif
#if USE_MACHINE_REGS
#undef RESTORE_REGS
#define RESTORE_REGS() \
{ \
VM_REG_CFP = ec->cfp; \
reg_pc = reg_cfp->pc; \
}
#undef VM_REG_PC
#define VM_REG_PC reg_pc
#undef GET_PC
#define GET_PC() (reg_pc)
#undef SET_PC
#define SET_PC(x) (reg_cfp->pc = VM_REG_PC = (x))
#endif
#if OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
#include "vmtc.inc"
if (UNLIKELY(ec == 0)) {
return (VALUE)insns_address_table;
}
#endif
reg_cfp = ec->cfp;
reg_pc = reg_cfp->pc;
#if OPT_STACK_CACHING
reg_a = initial;
reg_b = 0;
#endif
first:
INSN_DISPATCH();
/*****************/
#include "vm.inc"
/*****************/
END_INSNS_DISPATCH();
/* unreachable */
rb_bug("vm_eval: unreachable");
goto first;
}
const void **
rb_vm_get_insns_address_table(void)
{
return (const void **)vm_exec_core(0, 0);
}
#else /* OPT_CALL_THREADED_CODE */
#include "vm.inc"
#include "vmtc.inc"
const void **
rb_vm_get_insns_address_table(void)
{
return (const void **)insns_address_table;
}
static VALUE
vm_exec_core(rb_execution_context_t *ec, VALUE initial)
{
register rb_control_frame_t *reg_cfp = ec->cfp;
rb_thread_t *th;
while (1) {
reg_cfp = ((rb_insn_func_t) (*GET_PC()))(ec, reg_cfp);
if (UNLIKELY(reg_cfp == 0)) {
break;
}
}
if ((th = rb_ec_thread_ptr(ec))->retval != Qundef) {
VALUE ret = th->retval;
th->retval = Qundef;
return ret;
}
else {
VALUE err = ec->errinfo;
ec->errinfo = Qnil;
return err;
}
}
#endif