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e84f807618
fix typo. * vm_exec.h (DEBUG_END_INSN()): use `ec` instead of `th`. This macro is used when `VMDEBUG > 0`. escape all env properly. * vm_backtrace.c (rb_debug_inspector_open): escape all env using `rb_vm_stack_to_heap()` before making bindings. [Bug #15105] There is a complicated story of this issue: Without this patch, IFUNC frame does not escaped. A IFUNC frame points to CFUNC ep as previous ep. However, CFUNC ep can be escaped because of making bindings of Ruby level frames. IFUNC's ep can points to invalidated ep and `rb_iter_break()` will fail. This is why `any?` fails. * test/-ext-/debug/test_debug.rb: add a test. * remove trailing spaces. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_5@66074 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
192 lines
4.6 KiB
C
192 lines
4.6 KiB
C
/**********************************************************************
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vm.h -
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$Author$
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created at: 04/01/01 16:56:59 JST
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Copyright (C) 2004-2007 Koichi Sasada
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**********************************************************************/
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#ifndef RUBY_VM_EXEC_H
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#define RUBY_VM_EXEC_H
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typedef long OFFSET;
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typedef unsigned long lindex_t;
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typedef VALUE GENTRY;
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typedef rb_iseq_t *ISEQ;
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#ifdef __GCC__
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/* TODO: machine dependent prefetch instruction */
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#define PREFETCH(pc)
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#else
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#define PREFETCH(pc)
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#endif
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#if VMDEBUG > 0
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#define debugs printf
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#define DEBUG_ENTER_INSN(insn) \
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rb_vmdebug_debug_print_pre(ec, GET_CFP(), GET_PC());
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#if OPT_STACK_CACHING
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#define SC_REGS() , reg_a, reg_b
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#else
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#define SC_REGS()
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#endif
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#define DEBUG_END_INSN() \
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rb_vmdebug_debug_print_post(ec, GET_CFP() SC_REGS());
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#else
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#define debugs
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#define DEBUG_ENTER_INSN(insn)
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#define DEBUG_END_INSN()
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#endif
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#define throwdebug if(0)printf
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/* #define throwdebug printf */
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/************************************************/
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#if defined(DISPATCH_XXX)
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error !
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/************************************************/
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#elif OPT_CALL_THREADED_CODE
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#define LABEL(x) insn_func_##x
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#define ELABEL(x)
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#define LABEL_PTR(x) &LABEL(x)
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#define INSN_ENTRY(insn) \
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static rb_control_frame_t * \
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FUNC_FASTCALL(LABEL(insn))(rb_execution_context_t *ec, rb_control_frame_t *reg_cfp) {
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#define END_INSN(insn) return reg_cfp;}
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#define NEXT_INSN() return reg_cfp;
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#define START_OF_ORIGINAL_INSN(x) /* ignore */
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#define DISPATCH_ORIGINAL_INSN(x) return LABEL(x)(ec, reg_cfp);
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/************************************************/
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#elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE
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/* threaded code with gcc */
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#define LABEL(x) INSN_LABEL_##x
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#define ELABEL(x) INSN_ELABEL_##x
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#define LABEL_PTR(x) &&LABEL(x)
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#define INSN_ENTRY_SIG(insn) \
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if (0) fprintf(stderr, "exec: %s@(%d, %d)@%s:%d\n", #insn, \
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(int)(reg_pc - reg_cfp->iseq->body->iseq_encoded), \
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(int)(reg_cfp->pc - reg_cfp->iseq->body->iseq_encoded), \
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RSTRING_PTR(rb_iseq_path(reg_cfp->iseq)), \
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(int)(rb_iseq_line_no(reg_cfp->iseq, reg_pc - reg_cfp->iseq->body->iseq_encoded)));
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#define INSN_DISPATCH_SIG(insn)
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#define INSN_ENTRY(insn) \
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LABEL(insn): \
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INSN_ENTRY_SIG(insn); \
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/* dispatcher */
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#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && __GNUC__ == 3
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#define DISPATCH_ARCH_DEPEND_WAY(addr) \
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__asm__ __volatile__("jmp *%0;\t# -- inserted by vm.h\t[length = 2]" : : "r" (addr))
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#else
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#define DISPATCH_ARCH_DEPEND_WAY(addr) \
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/* do nothing */
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#endif
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/**********************************/
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#if OPT_DIRECT_THREADED_CODE
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/* for GCC 3.4.x */
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#define TC_DISPATCH(insn) \
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INSN_DISPATCH_SIG(insn); \
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goto *(void const *)GET_CURRENT_INSN(); \
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;
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#else
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/* token threaded code */
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#define TC_DISPATCH(insn) \
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DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \
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INSN_DISPATCH_SIG(insn); \
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goto *insns_address_table[GET_CURRENT_INSN()]; \
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rb_bug("tc error");
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#endif /* DISPATCH_DIRECT_THREADED_CODE */
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#define END_INSN(insn) \
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DEBUG_END_INSN(); \
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TC_DISPATCH(insn);
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#define INSN_DISPATCH() \
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TC_DISPATCH(__START__) \
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{
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#define END_INSNS_DISPATCH() \
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rb_bug("unknown insn: %"PRIdVALUE, GET_CURRENT_INSN()); \
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} /* end of while loop */ \
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#define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__)
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#define START_OF_ORIGINAL_INSN(x) start_of_##x:
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#define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x;
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/************************************************/
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#else /* no threaded code */
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/* most common method */
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#define INSN_ENTRY(insn) \
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case BIN(insn):
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#define END_INSN(insn) \
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DEBUG_END_INSN(); \
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break;
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#define INSN_DISPATCH() \
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while (1) { \
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switch (GET_CURRENT_INSN()) {
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#define END_INSNS_DISPATCH() \
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default: \
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SDR(); \
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rb_bug("unknown insn: %ld", GET_CURRENT_INSN()); \
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} /* end of switch */ \
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} /* end of while loop */ \
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#define NEXT_INSN() goto first
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#define START_OF_ORIGINAL_INSN(x) start_of_##x:
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#define DISPATCH_ORIGINAL_INSN(x) goto start_of_##x;
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#endif
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#define VM_SP_CNT(ec, sp) ((sp) - (ec)->vm_stack)
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#if OPT_CALL_THREADED_CODE
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#define THROW_EXCEPTION(exc) do { \
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ec->errinfo = (VALUE)(exc); \
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return 0; \
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} while (0)
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#else
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#define THROW_EXCEPTION(exc) return (VALUE)(exc)
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#endif
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#define SCREG(r) (reg_##r)
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#define VM_DEBUG_STACKOVERFLOW 0
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#if VM_DEBUG_STACKOVERFLOW
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#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin) \
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WHEN_VM_STACK_OVERFLOWED(cfp, (cfp)->sp, margin) vm_stack_overflow_for_insn()
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#else
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#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin)
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#endif
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#endif /* RUBY_VM_EXEC_H */
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