298 lines
8.9 KiB
C
298 lines
8.9 KiB
C
/*
|
|
** Stack frames.
|
|
** Copyright (C) 2005-2022 Mike Pall. See Copyright Notice in luajit.h
|
|
*/
|
|
|
|
#ifndef _LJ_FRAME_H
|
|
#define _LJ_FRAME_H
|
|
|
|
#include "lj_obj.h"
|
|
#include "lj_bc.h"
|
|
|
|
/* -- Lua stack frame ----------------------------------------------------- */
|
|
|
|
/* Frame type markers in LSB of PC (4-byte aligned) or delta (8-byte aligned:
|
|
**
|
|
** PC 00 Lua frame
|
|
** delta 001 C frame
|
|
** delta 010 Continuation frame
|
|
** delta 011 Lua vararg frame
|
|
** delta 101 cpcall() frame
|
|
** delta 110 ff pcall() frame
|
|
** delta 111 ff pcall() frame with active hook
|
|
*/
|
|
enum {
|
|
FRAME_LUA, FRAME_C, FRAME_CONT, FRAME_VARG,
|
|
FRAME_LUAP, FRAME_CP, FRAME_PCALL, FRAME_PCALLH
|
|
};
|
|
#define FRAME_TYPE 3
|
|
#define FRAME_P 4
|
|
#define FRAME_TYPEP (FRAME_TYPE|FRAME_P)
|
|
|
|
/* Macros to access and modify Lua frames. */
|
|
#if LJ_FR2
|
|
/* Two-slot frame info, required for 64 bit PC/GCRef:
|
|
**
|
|
** base-2 base-1 | base base+1 ...
|
|
** [func PC/delta/ft] | [slots ...]
|
|
** ^-- frame | ^-- base ^-- top
|
|
**
|
|
** Continuation frames:
|
|
**
|
|
** base-4 base-3 base-2 base-1 | base base+1 ...
|
|
** [cont PC ] [func PC/delta/ft] | [slots ...]
|
|
** ^-- frame | ^-- base ^-- top
|
|
*/
|
|
#define frame_gc(f) (gcval((f)-1))
|
|
#define frame_ftsz(f) ((ptrdiff_t)(f)->ftsz)
|
|
#define frame_pc(f) ((const BCIns *)frame_ftsz(f))
|
|
#define setframe_gc(f, p, tp) (setgcVraw((f), (p), (tp)))
|
|
#define setframe_ftsz(f, sz) ((f)->ftsz = (sz))
|
|
#define setframe_pc(f, pc) ((f)->ftsz = (int64_t)(intptr_t)(pc))
|
|
#else
|
|
/* One-slot frame info, sufficient for 32 bit PC/GCRef:
|
|
**
|
|
** base-1 | base base+1 ...
|
|
** lo hi |
|
|
** [func | PC/delta/ft] | [slots ...]
|
|
** ^-- frame | ^-- base ^-- top
|
|
**
|
|
** Continuation frames:
|
|
**
|
|
** base-2 base-1 | base base+1 ...
|
|
** lo hi lo hi |
|
|
** [cont | PC] [func | PC/delta/ft] | [slots ...]
|
|
** ^-- frame | ^-- base ^-- top
|
|
*/
|
|
#define frame_gc(f) (gcref((f)->fr.func))
|
|
#define frame_ftsz(f) ((ptrdiff_t)(f)->fr.tp.ftsz)
|
|
#define frame_pc(f) (mref((f)->fr.tp.pcr, const BCIns))
|
|
#define setframe_gc(f, p, tp) (setgcref((f)->fr.func, (p)), UNUSED(tp))
|
|
#define setframe_ftsz(f, sz) ((f)->fr.tp.ftsz = (int32_t)(sz))
|
|
#define setframe_pc(f, pc) (setmref((f)->fr.tp.pcr, (pc)))
|
|
#endif
|
|
|
|
#define frame_type(f) (frame_ftsz(f) & FRAME_TYPE)
|
|
#define frame_typep(f) (frame_ftsz(f) & FRAME_TYPEP)
|
|
#define frame_islua(f) (frame_type(f) == FRAME_LUA)
|
|
#define frame_isc(f) (frame_type(f) == FRAME_C)
|
|
#define frame_iscont(f) (frame_typep(f) == FRAME_CONT)
|
|
#define frame_isvarg(f) (frame_typep(f) == FRAME_VARG)
|
|
#define frame_ispcall(f) ((frame_ftsz(f) & 6) == FRAME_PCALL)
|
|
|
|
#define frame_func(f) (&frame_gc(f)->fn)
|
|
#define frame_delta(f) (frame_ftsz(f) >> 3)
|
|
#define frame_sized(f) (frame_ftsz(f) & ~FRAME_TYPEP)
|
|
|
|
enum { LJ_CONT_TAILCALL, LJ_CONT_FFI_CALLBACK }; /* Special continuations. */
|
|
|
|
#if LJ_FR2
|
|
#define frame_contpc(f) (frame_pc((f)-2))
|
|
#define frame_contv(f) (((f)-3)->u64)
|
|
#else
|
|
#define frame_contpc(f) (frame_pc((f)-1))
|
|
#define frame_contv(f) (((f)-1)->u32.lo)
|
|
#endif
|
|
#if LJ_FR2
|
|
#define frame_contf(f) ((ASMFunction)(uintptr_t)((f)-3)->u64)
|
|
#elif LJ_64
|
|
#define frame_contf(f) \
|
|
((ASMFunction)(void *)((intptr_t)lj_vm_asm_begin + \
|
|
(intptr_t)(int32_t)((f)-1)->u32.lo))
|
|
#else
|
|
#define frame_contf(f) ((ASMFunction)gcrefp(((f)-1)->gcr, void))
|
|
#endif
|
|
#define frame_iscont_fficb(f) \
|
|
(LJ_HASFFI && frame_contv(f) == LJ_CONT_FFI_CALLBACK)
|
|
|
|
#define frame_prevl(f) ((f) - (1+LJ_FR2+bc_a(frame_pc(f)[-1])))
|
|
#define frame_prevd(f) ((TValue *)((char *)(f) - frame_sized(f)))
|
|
#define frame_prev(f) (frame_islua(f)?frame_prevl(f):frame_prevd(f))
|
|
/* Note: this macro does not skip over FRAME_VARG. */
|
|
|
|
/* -- C stack frame ------------------------------------------------------- */
|
|
|
|
/* Macros to access and modify the C stack frame chain. */
|
|
|
|
/* These definitions must match with the arch-specific *.dasc files. */
|
|
#if LJ_TARGET_X86
|
|
#if LJ_ABI_WIN
|
|
#define CFRAME_OFS_ERRF (19*4)
|
|
#define CFRAME_OFS_NRES (18*4)
|
|
#define CFRAME_OFS_PREV (17*4)
|
|
#define CFRAME_OFS_L (16*4)
|
|
#define CFRAME_OFS_SEH (9*4)
|
|
#define CFRAME_OFS_PC (6*4)
|
|
#define CFRAME_OFS_MULTRES (5*4)
|
|
#define CFRAME_SIZE (16*4)
|
|
#define CFRAME_SHIFT_MULTRES 0
|
|
#else
|
|
#define CFRAME_OFS_ERRF (15*4)
|
|
#define CFRAME_OFS_NRES (14*4)
|
|
#define CFRAME_OFS_PREV (13*4)
|
|
#define CFRAME_OFS_L (12*4)
|
|
#define CFRAME_OFS_PC (6*4)
|
|
#define CFRAME_OFS_MULTRES (5*4)
|
|
#define CFRAME_SIZE (12*4)
|
|
#define CFRAME_SHIFT_MULTRES 0
|
|
#endif
|
|
#elif LJ_TARGET_X64
|
|
#if LJ_ABI_WIN
|
|
#define CFRAME_OFS_PREV (13*8)
|
|
#if LJ_GC64
|
|
#define CFRAME_OFS_PC (12*8)
|
|
#define CFRAME_OFS_L (11*8)
|
|
#define CFRAME_OFS_ERRF (21*4)
|
|
#define CFRAME_OFS_NRES (20*4)
|
|
#define CFRAME_OFS_MULTRES (8*4)
|
|
#else
|
|
#define CFRAME_OFS_PC (25*4)
|
|
#define CFRAME_OFS_L (24*4)
|
|
#define CFRAME_OFS_ERRF (23*4)
|
|
#define CFRAME_OFS_NRES (22*4)
|
|
#define CFRAME_OFS_MULTRES (21*4)
|
|
#endif
|
|
#define CFRAME_SIZE (10*8)
|
|
#define CFRAME_SIZE_JIT (CFRAME_SIZE + 9*16 + 4*8)
|
|
#define CFRAME_SHIFT_MULTRES 0
|
|
#else
|
|
#define CFRAME_OFS_PREV (4*8)
|
|
#if LJ_GC64
|
|
#define CFRAME_OFS_PC (3*8)
|
|
#define CFRAME_OFS_L (2*8)
|
|
#define CFRAME_OFS_ERRF (3*4)
|
|
#define CFRAME_OFS_NRES (2*4)
|
|
#define CFRAME_OFS_MULTRES (0*4)
|
|
#else
|
|
#define CFRAME_OFS_PC (7*4)
|
|
#define CFRAME_OFS_L (6*4)
|
|
#define CFRAME_OFS_ERRF (5*4)
|
|
#define CFRAME_OFS_NRES (4*4)
|
|
#define CFRAME_OFS_MULTRES (1*4)
|
|
#endif
|
|
#if LJ_NO_UNWIND
|
|
#define CFRAME_SIZE (12*8)
|
|
#else
|
|
#define CFRAME_SIZE (10*8)
|
|
#endif
|
|
#define CFRAME_SIZE_JIT (CFRAME_SIZE + 16)
|
|
#define CFRAME_SHIFT_MULTRES 0
|
|
#endif
|
|
#elif LJ_TARGET_ARM
|
|
#define CFRAME_OFS_ERRF 24
|
|
#define CFRAME_OFS_NRES 20
|
|
#define CFRAME_OFS_PREV 16
|
|
#define CFRAME_OFS_L 12
|
|
#define CFRAME_OFS_PC 8
|
|
#define CFRAME_OFS_MULTRES 4
|
|
#if LJ_ARCH_HASFPU
|
|
#define CFRAME_SIZE 128
|
|
#else
|
|
#define CFRAME_SIZE 64
|
|
#endif
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#elif LJ_TARGET_ARM64
|
|
#define CFRAME_OFS_ERRF 36
|
|
#define CFRAME_OFS_NRES 40
|
|
#define CFRAME_OFS_PREV 0
|
|
#define CFRAME_OFS_L 16
|
|
#define CFRAME_OFS_PC 8
|
|
#define CFRAME_OFS_MULTRES 32
|
|
#define CFRAME_SIZE 208
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#elif LJ_TARGET_PPC
|
|
#if LJ_TARGET_XBOX360
|
|
#define CFRAME_OFS_ERRF 424
|
|
#define CFRAME_OFS_NRES 420
|
|
#define CFRAME_OFS_PREV 400
|
|
#define CFRAME_OFS_L 416
|
|
#define CFRAME_OFS_PC 412
|
|
#define CFRAME_OFS_MULTRES 408
|
|
#define CFRAME_SIZE 384
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#elif LJ_ARCH_PPC32ON64
|
|
#define CFRAME_OFS_ERRF 472
|
|
#define CFRAME_OFS_NRES 468
|
|
#define CFRAME_OFS_PREV 448
|
|
#define CFRAME_OFS_L 464
|
|
#define CFRAME_OFS_PC 460
|
|
#define CFRAME_OFS_MULTRES 456
|
|
#define CFRAME_SIZE 400
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#else
|
|
#define CFRAME_OFS_ERRF 48
|
|
#define CFRAME_OFS_NRES 44
|
|
#define CFRAME_OFS_PREV 40
|
|
#define CFRAME_OFS_L 36
|
|
#define CFRAME_OFS_PC 32
|
|
#define CFRAME_OFS_MULTRES 28
|
|
#define CFRAME_SIZE (LJ_ARCH_HASFPU ? 272 : 128)
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#endif
|
|
#elif LJ_TARGET_MIPS32
|
|
#if LJ_ARCH_HASFPU
|
|
#define CFRAME_OFS_ERRF 124
|
|
#define CFRAME_OFS_NRES 120
|
|
#define CFRAME_OFS_PREV 116
|
|
#define CFRAME_OFS_L 112
|
|
#define CFRAME_SIZE 112
|
|
#else
|
|
#define CFRAME_OFS_ERRF 76
|
|
#define CFRAME_OFS_NRES 72
|
|
#define CFRAME_OFS_PREV 68
|
|
#define CFRAME_OFS_L 64
|
|
#define CFRAME_SIZE 64
|
|
#endif
|
|
#define CFRAME_OFS_PC 20
|
|
#define CFRAME_OFS_MULTRES 16
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#elif LJ_TARGET_MIPS64
|
|
#if LJ_ARCH_HASFPU
|
|
#define CFRAME_OFS_ERRF 188
|
|
#define CFRAME_OFS_NRES 184
|
|
#define CFRAME_OFS_PREV 176
|
|
#define CFRAME_OFS_L 168
|
|
#define CFRAME_OFS_PC 160
|
|
#define CFRAME_SIZE 192
|
|
#else
|
|
#define CFRAME_OFS_ERRF 124
|
|
#define CFRAME_OFS_NRES 120
|
|
#define CFRAME_OFS_PREV 112
|
|
#define CFRAME_OFS_L 104
|
|
#define CFRAME_OFS_PC 96
|
|
#define CFRAME_SIZE 128
|
|
#endif
|
|
#define CFRAME_OFS_MULTRES 0
|
|
#define CFRAME_SHIFT_MULTRES 3
|
|
#else
|
|
#error "Missing CFRAME_* definitions for this architecture"
|
|
#endif
|
|
|
|
#ifndef CFRAME_SIZE_JIT
|
|
#define CFRAME_SIZE_JIT CFRAME_SIZE
|
|
#endif
|
|
|
|
#define CFRAME_RESUME 1
|
|
#define CFRAME_UNWIND_FF 2 /* Only used in unwinder. */
|
|
#define CFRAME_RAWMASK (~(intptr_t)(CFRAME_RESUME|CFRAME_UNWIND_FF))
|
|
|
|
#define cframe_errfunc(cf) (*(int32_t *)(((char *)(cf))+CFRAME_OFS_ERRF))
|
|
#define cframe_nres(cf) (*(int32_t *)(((char *)(cf))+CFRAME_OFS_NRES))
|
|
#define cframe_prev(cf) (*(void **)(((char *)(cf))+CFRAME_OFS_PREV))
|
|
#define cframe_multres(cf) (*(uint32_t *)(((char *)(cf))+CFRAME_OFS_MULTRES))
|
|
#define cframe_multres_n(cf) (cframe_multres((cf)) >> CFRAME_SHIFT_MULTRES)
|
|
#define cframe_L(cf) \
|
|
(&gcref(*(GCRef *)(((char *)(cf))+CFRAME_OFS_L))->th)
|
|
#define cframe_pc(cf) \
|
|
(mref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), const BCIns))
|
|
#define setcframe_L(cf, L) \
|
|
(setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_L), (L)))
|
|
#define setcframe_pc(cf, pc) \
|
|
(setmref(*(MRef *)(((char *)(cf))+CFRAME_OFS_PC), (pc)))
|
|
#define cframe_canyield(cf) ((intptr_t)(cf) & CFRAME_RESUME)
|
|
#define cframe_unwind_ff(cf) ((intptr_t)(cf) & CFRAME_UNWIND_FF)
|
|
#define cframe_raw(cf) ((void *)((intptr_t)(cf) & CFRAME_RAWMASK))
|
|
#define cframe_Lpc(L) cframe_pc(cframe_raw(L->cframe))
|
|
|
|
#endif
|