diff options
author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
---|---|---|
committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/vm_exec.h |
Fresh start
Diffstat (limited to 'jni/ruby/vm_exec.h')
-rw-r--r-- | jni/ruby/vm_exec.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/jni/ruby/vm_exec.h b/jni/ruby/vm_exec.h new file mode 100644 index 0000000..3de601f --- /dev/null +++ b/jni/ruby/vm_exec.h @@ -0,0 +1,182 @@ +/********************************************************************** + + vm.h - + + $Author: ko1 $ + created at: 04/01/01 16:56:59 JST + + Copyright (C) 2004-2007 Koichi Sasada + +**********************************************************************/ + +#ifndef RUBY_VM_EXEC_H +#define RUBY_VM_EXEC_H + +typedef long OFFSET; +typedef unsigned long lindex_t; +typedef VALUE GENTRY; +typedef rb_iseq_t *ISEQ; + +#ifdef __GCC__ +/* TODO: machine dependent prefetch instruction */ +#define PREFETCH(pc) +#else +#define PREFETCH(pc) +#endif + +#if VMDEBUG > 0 +#define debugs printf +#define DEBUG_ENTER_INSN(insn) \ + rb_vmdebug_debug_print_pre(th, GET_CFP(),GET_PC()); + +#if OPT_STACK_CACHING +#define SC_REGS() , reg_a, reg_b +#else +#define SC_REGS() +#endif + +#define DEBUG_END_INSN() \ + rb_vmdebug_debug_print_post(th, GET_CFP() SC_REGS()); + +#else + +#define debugs +#define DEBUG_ENTER_INSN(insn) +#define DEBUG_END_INSN() +#endif + +#define throwdebug if(0)printf +/* #define throwdebug printf */ + +/************************************************/ +#if defined(DISPATCH_XXX) +error ! +/************************************************/ +#elif OPT_CALL_THREADED_CODE + +#define LABEL(x) insn_func_##x +#define ELABEL(x) +#define LABEL_PTR(x) &LABEL(x) + +#define INSN_ENTRY(insn) \ + static rb_control_frame_t * \ + FUNC_FASTCALL(LABEL(insn))(rb_thread_t *th, rb_control_frame_t *reg_cfp) { + +#define END_INSN(insn) return reg_cfp;} + +#define NEXT_INSN() return reg_cfp; + +/************************************************/ +#elif OPT_TOKEN_THREADED_CODE || OPT_DIRECT_THREADED_CODE +/* threaded code with gcc */ + +#define LABEL(x) INSN_LABEL_##x +#define ELABEL(x) INSN_ELABEL_##x +#define LABEL_PTR(x) &&LABEL(x) + +#define INSN_ENTRY_SIG(insn) + + +#define INSN_DISPATCH_SIG(insn) + +#define INSN_ENTRY(insn) \ + LABEL(insn): \ + INSN_ENTRY_SIG(insn); \ + +/* dispatcher */ +#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) && __GNUC__ == 3 +#define DISPATCH_ARCH_DEPEND_WAY(addr) \ + __asm__ __volatile__("jmp *%0;\t# -- inserted by vm.h\t[length = 2]" : : "r" (addr)) + +#else +#define DISPATCH_ARCH_DEPEND_WAY(addr) \ + /* do nothing */ + +#endif + + +/**********************************/ +#if OPT_DIRECT_THREADED_CODE + +/* for GCC 3.4.x */ +#define TC_DISPATCH(insn) \ + INSN_DISPATCH_SIG(insn); \ + goto *(void const *)GET_CURRENT_INSN(); \ + ; + +#else +/* token threaded code */ + +#define TC_DISPATCH(insn) \ + DISPATCH_ARCH_DEPEND_WAY(insns_address_table[GET_CURRENT_INSN()]); \ + INSN_DISPATCH_SIG(insn); \ + goto *insns_address_table[GET_CURRENT_INSN()]; \ + rb_bug("tc error"); + + +#endif /* DISPATCH_DIRECT_THREADED_CODE */ + +#define END_INSN(insn) \ + DEBUG_END_INSN(); \ + TC_DISPATCH(insn); + +#define INSN_DISPATCH() \ + TC_DISPATCH(__START__) \ + { + +#define END_INSNS_DISPATCH() \ + rb_bug("unknown insn: %"PRIdVALUE, GET_CURRENT_INSN()); \ + } /* end of while loop */ \ + +#define NEXT_INSN() TC_DISPATCH(__NEXT_INSN__) + +/************************************************/ +#else /* no threaded code */ +/* most common method */ + +#define INSN_ENTRY(insn) \ +case BIN(insn): + +#define END_INSN(insn) \ + DEBUG_END_INSN(); \ + break; + + +#define INSN_DISPATCH() \ + while (1) { \ + switch (GET_CURRENT_INSN()) { + +#define END_INSNS_DISPATCH() \ +default: \ + SDR(); \ + rb_bug("unknown insn: %ld", GET_CURRENT_INSN()); \ + } /* end of switch */ \ + } /* end of while loop */ \ + +#define NEXT_INSN() goto first + +#endif + +#define VM_SP_CNT(th, sp) ((sp) - (th)->stack) + +#if OPT_CALL_THREADED_CODE +#define THROW_EXCEPTION(exc) do { \ + th->errinfo = (VALUE)(exc); \ + return 0; \ +} while (0) +#else +#define THROW_EXCEPTION(exc) return (VALUE)(exc) +#endif + +#define SCREG(r) (reg_##r) + +#define VM_DEBUG_STACKOVERFLOW 0 + +#if VM_DEBUG_STACKOVERFLOW +#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin) \ + WHEN_VM_STACK_OVERFLOWED(cfp, (cfp)->sp, margin) vm_stack_overflow_for_insn() +#else +#define CHECK_VM_STACK_OVERFLOW_FOR_INSN(cfp, margin) +#endif + +#endif /* RUBY_VM_EXEC_H */ |