+++ /dev/null
-/* -----------------------------------------------------------------------------
- *
- * (c) The GHC Team, 1998-2004
- *
- * Registers in the STG machine.
- *
- * The STG machine has a collection of "registers", each one of which
- * may or may not correspond to an actual machine register when
- * running code.
- *
- * The register set is backed by a table in memory (struct
- * StgRegTable). If a particular STG register is not mapped to a
- * machine register, then the apprpriate slot in this table is used
- * instead.
- *
- * This table is itself pointed to by another register, BaseReg. If
- * BaseReg is not in a machine register, then the register table is
- * used from an absolute location (MainCapability).
- *
- * ---------------------------------------------------------------------------*/
-
-#ifndef REGS_H
-#define REGS_H
-
-typedef struct {
- StgWord stgEagerBlackholeInfo;
- StgFunPtr stgGCEnter1;
- StgFunPtr stgGCFun;
-} StgFunTable;
-
-/*
- * Vanilla registers are given this union type, which is purely so
- * that we can cast the vanilla reg to a variety of types with the
- * minimum of syntax. eg. R1.w instead of (StgWord)R1.
- */
-typedef union {
- StgWord w;
- StgAddr a;
- StgChar c;
- StgInt8 i8;
- StgFloat f;
- StgInt i;
- StgPtr p;
- StgClosurePtr cl;
- StgStackOffset offset; /* unused? */
- StgByteArray b;
- StgTSOPtr t;
-} StgUnion;
-
-/*
- * This is the table that holds shadow-locations for all the STG
- * registers. The shadow locations are used when:
- *
- * 1) the particular register isn't mapped to a real machine
- * register, probably because there's a shortage of real registers.
- * 2) caller-saves registers are saved across a CCall
- */
-typedef struct StgRegTable_ {
- StgUnion rR1;
- StgUnion rR2;
- StgUnion rR3;
- StgUnion rR4;
- StgUnion rR5;
- StgUnion rR6;
- StgUnion rR7;
- StgUnion rR8;
- StgUnion rR9; /* used occasionally by heap/stack checks */
- StgUnion rR10; /* used occasionally by heap/stack checks */
- StgFloat rF1;
- StgFloat rF2;
- StgFloat rF3;
- StgFloat rF4;
- StgDouble rD1;
- StgDouble rD2;
- StgWord64 rL1;
- StgPtr rSp;
- StgPtr rSpLim;
- StgPtr rHp;
- StgPtr rHpLim;
- struct StgTSO_ *rCurrentTSO;
- struct step_ *rNursery;
- struct bdescr_ *rCurrentNursery; /* Hp/HpLim point into this block */
- struct bdescr_ *rCurrentAlloc; /* for allocation using allocate() */
- StgWord rHpAlloc; /* number of *bytes* being allocated in heap */
- StgWord rRet; // holds the return code of the thread
-} StgRegTable;
-
-#if IN_STG_CODE
-
-/*
- * Registers Hp and HpLim are global across the entire system, and are
- * copied into the RegTable before executing a thread.
- *
- * Registers Sp and SpLim are saved in the TSO for the
- * thread, but are copied into the RegTable before executing a thread.
- *
- * All other registers are "general purpose", and are used for passing
- * arguments to functions, and returning values. The code generator
- * knows how many of these are in real registers, and avoids
- * generating code that uses non-real registers. General purpose
- * registers are never saved when returning to the scheduler, instead
- * we save whatever is live at the time on the stack, and restore it
- * later. This should reduce the context switch time, amongst other
- * things.
- *
- * For argument passing, the stack will be used in preference to
- * pseudo-registers if the architecture has too few general purpose
- * registers.
- *
- * Some special RTS functions like newArray and the Integer primitives
- * expect their arguments to be in registers R1-Rn, so we use these
- * (pseudo-)registers in those cases.
- */
-
-/*
- * Locations for saving per-thread registers.
- */
-
-#define SAVE_Sp (CurrentTSO->sp)
-#define SAVE_SpLim (CurrentTSO->splim)
-
-#define SAVE_Hp (BaseReg->rHp)
-
-#define SAVE_CurrentTSO (BaseReg->rCurrentTSO)
-#define SAVE_CurrentNursery (BaseReg->rCurrentNursery)
-#define SAVE_HpAlloc (BaseReg->rHpAlloc)
-
-/* We sometimes need to save registers across a C-call, eg. if they
- * are clobbered in the standard calling convention. We define the
- * save locations for all registers in the register table.
- */
-
-#define SAVE_R1 (BaseReg->rR1)
-#define SAVE_R2 (BaseReg->rR2)
-#define SAVE_R3 (BaseReg->rR3)
-#define SAVE_R4 (BaseReg->rR4)
-#define SAVE_R5 (BaseReg->rR5)
-#define SAVE_R6 (BaseReg->rR6)
-#define SAVE_R7 (BaseReg->rR7)
-#define SAVE_R8 (BaseReg->rR8)
-
-#define SAVE_F1 (BaseReg->rF1)
-#define SAVE_F2 (BaseReg->rF2)
-#define SAVE_F3 (BaseReg->rF3)
-#define SAVE_F4 (BaseReg->rF4)
-
-#define SAVE_D1 (BaseReg->rD1)
-#define SAVE_D2 (BaseReg->rD2)
-
-#define SAVE_L1 (BaseReg->rL1)
-
-/* -----------------------------------------------------------------------------
- * Emit the GCC-specific register declarations for each machine
- * register being used. If any STG register isn't mapped to a machine
- * register, then map it to an offset from BaseReg.
- *
- * First, the general purpose registers. The idea is, if a particular
- * general-purpose STG register can't be mapped to a real machine
- * register, it won't be used at all. Instead, we'll use the stack.
- *
- * This is an improvement on the way things used to be done, when all
- * registers were mapped to locations in the register table, and stuff
- * was being shifted from the stack to the register table and back
- * again for no good reason (on register-poor architectures).
- */
-
-/* define NO_REGS to omit register declarations - used in RTS C code
- * that needs all the STG definitions but not the global register
- * settings.
- */
-#define GLOBAL_REG_DECL(type,name,reg) register type name REG(reg);
-
-#if defined(REG_R1) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R1,REG_R1)
-#else
-# define R1 (BaseReg->rR1)
-#endif
-
-#if defined(REG_R2) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R2,REG_R2)
-#else
-# define R2 (BaseReg->rR2)
-#endif
-
-#if defined(REG_R3) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R3,REG_R3)
-#else
-# define R3 (BaseReg->rR3)
-#endif
-
-#if defined(REG_R4) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R4,REG_R4)
-#else
-# define R4 (BaseReg->rR4)
-#endif
-
-#if defined(REG_R5) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R5,REG_R5)
-#else
-# define R5 (BaseReg->rR5)
-#endif
-
-#if defined(REG_R6) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R6,REG_R6)
-#else
-# define R6 (BaseReg->rR6)
-#endif
-
-#if defined(REG_R7) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R7,REG_R7)
-#else
-# define R7 (BaseReg->rR7)
-#endif
-
-#if defined(REG_R8) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R8,REG_R8)
-#else
-# define R8 (BaseReg->rR8)
-#endif
-
-#if defined(REG_R9) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R9,REG_R9)
-#else
-# define R9 (BaseReg->rR9)
-#endif
-
-#if defined(REG_R10) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgUnion,R10,REG_R10)
-#else
-# define R10 (BaseReg->rR10)
-#endif
-
-#if defined(REG_F1) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgFloat,F1,REG_F1)
-#else
-#define F1 (BaseReg->rF1)
-#endif
-
-#if defined(REG_F2) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgFloat,F2,REG_F2)
-#else
-#define F2 (BaseReg->rF2)
-#endif
-
-#if defined(REG_F3) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgFloat,F3,REG_F3)
-#else
-#define F3 (BaseReg->rF3)
-#endif
-
-#if defined(REG_F4) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgFloat,F4,REG_F4)
-#else
-#define F4 (BaseReg->rF4)
-#endif
-
-#if defined(REG_D1) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgDouble,D1,REG_D1)
-#else
-#define D1 (BaseReg->rD1)
-#endif
-
-#if defined(REG_D2) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgDouble,D2,REG_D2)
-#else
-#define D2 (BaseReg->rD2)
-#endif
-
-#if defined(REG_L1) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgWord64,L1,REG_L1)
-#else
-#define L1 (BaseReg->rL1)
-#endif
-
-/*
- * If BaseReg isn't mapped to a machine register, just use the global
- * address of the current register table (CurrentRegTable in
- * concurrent Haskell, MainRegTable otherwise).
- */
-
-/* A capability is a combination of a FunTable and a RegTable. In STG
- * code, BaseReg normally points to the RegTable portion of this
- * structure, so that we can index both forwards and backwards to take
- * advantage of shorter instruction forms on some archs (eg. x86).
- * This is a cut-down version of the Capability structure; the full
- * version is defined in Capability.h.
- */
-struct PartCapability_ {
- StgFunTable f;
- StgRegTable r;
-};
-
-/* No such thing as a MainCapability under THREADED_RTS - each thread must have
- * its own Capability.
- */
-#if IN_STG_CODE && !(defined(THREADED_RTS) && !defined(NOSMP))
-extern W_ MainCapability[];
-#endif
-
-/*
- * Assigning to BaseReg (the ASSIGN_BaseReg macro): this happens on
- * return from a "safe" foreign call, when the thread might be running
- * on a new Capability. Obviously if BaseReg is not a register, then
- * we are restricted to a single Capability (this invariant is enforced
- * in Capability.c:initCapabilities), and assigning to BaseReg can be omitted.
- */
-
-#if defined(REG_Base) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(StgRegTable *,BaseReg,REG_Base)
-#define ASSIGN_BaseReg(e) (BaseReg = (e))
-#else
-#if defined(THREADED_RTS) && !defined(NOSMP)
-#error BaseReg must be in a register for THREADED_RTS
-#endif
-#define BaseReg (&((struct PartCapability_ *)MainCapability)->r)
-#define ASSIGN_BaseReg(e) (e)
-#endif
-
-#if defined(REG_Sp) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(P_,Sp,REG_Sp)
-#else
-#define Sp (BaseReg->rSp)
-#endif
-
-#if defined(REG_SpLim) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(P_,SpLim,REG_SpLim)
-#else
-#define SpLim (BaseReg->rSpLim)
-#endif
-
-#if defined(REG_Hp) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(P_,Hp,REG_Hp)
-#else
-#define Hp (BaseReg->rHp)
-#endif
-
-#if defined(REG_HpLim) && !defined(NO_GLOBAL_REG_DECLS)
-#error HpLim cannot be in a register
-#else
-#define HpLim (BaseReg->rHpLim)
-#endif
-
-#if defined(REG_CurrentTSO) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(struct _StgTSO *,CurrentTSO,REG_CurrentTSO)
-#else
-#define CurrentTSO (BaseReg->rCurrentTSO)
-#endif
-
-#if defined(REG_CurrentNursery) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(bdescr *,CurrentNursery,REG_CurrentNursery)
-#else
-#define CurrentNursery (BaseReg->rCurrentNursery)
-#endif
-
-#if defined(REG_HpAlloc) && !defined(NO_GLOBAL_REG_DECLS)
-GLOBAL_REG_DECL(bdescr *,HpAlloc,REG_HpAlloc)
-#else
-#define HpAlloc (BaseReg->rHpAlloc)
-#endif
-
-/* -----------------------------------------------------------------------------
- Get absolute function pointers from the register table, to save
- code space. On x86,
-
- jmp *-12(%ebx)
-
- is shorter than
-
- jmp absolute_address
-
- as long as the offset is within the range of a signed byte
- (-128..+127). So we pick some common absolute_addresses and put
- them in the register table. As a bonus, linking time should also
- be reduced.
-
- Other possible candidates in order of importance:
-
- stg_upd_frame_info
- stg_CAF_BLACKHOLE_info
- stg_IND_STATIC_info
-
- anything else probably isn't worth the effort.
-
- -------------------------------------------------------------------------- */
-
-
-#define FunReg ((StgFunTable *)((void *)BaseReg - STG_FIELD_OFFSET(struct PartCapability_, r)))
-
-#define stg_EAGER_BLACKHOLE_info (FunReg->stgEagerBlackholeInfo)
-#define stg_gc_enter_1 (FunReg->stgGCEnter1)
-#define stg_gc_fun (FunReg->stgGCFun)
-
-/* -----------------------------------------------------------------------------
- For any registers which are denoted "caller-saves" by the C calling
- convention, we have to emit code to save and restore them across C
- calls.
- -------------------------------------------------------------------------- */
-
-#ifdef CALLER_SAVES_R1
-#define CALLER_SAVE_R1 SAVE_R1 = R1;
-#define CALLER_RESTORE_R1 R1 = SAVE_R1;
-#else
-#define CALLER_SAVE_R1 /* nothing */
-#define CALLER_RESTORE_R1 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R2
-#define CALLER_SAVE_R2 SAVE_R2 = R2;
-#define CALLER_RESTORE_R2 R2 = SAVE_R2;
-#else
-#define CALLER_SAVE_R2 /* nothing */
-#define CALLER_RESTORE_R2 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R3
-#define CALLER_SAVE_R3 SAVE_R3 = R3;
-#define CALLER_RESTORE_R3 R3 = SAVE_R3;
-#else
-#define CALLER_SAVE_R3 /* nothing */
-#define CALLER_RESTORE_R3 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R4
-#define CALLER_SAVE_R4 SAVE_R4 = R4;
-#define CALLER_RESTORE_R4 R4 = SAVE_R4;
-#else
-#define CALLER_SAVE_R4 /* nothing */
-#define CALLER_RESTORE_R4 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R5
-#define CALLER_SAVE_R5 SAVE_R5 = R5;
-#define CALLER_RESTORE_R5 R5 = SAVE_R5;
-#else
-#define CALLER_SAVE_R5 /* nothing */
-#define CALLER_RESTORE_R5 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R6
-#define CALLER_SAVE_R6 SAVE_R6 = R6;
-#define CALLER_RESTORE_R6 R6 = SAVE_R6;
-#else
-#define CALLER_SAVE_R6 /* nothing */
-#define CALLER_RESTORE_R6 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R7
-#define CALLER_SAVE_R7 SAVE_R7 = R7;
-#define CALLER_RESTORE_R7 R7 = SAVE_R7;
-#else
-#define CALLER_SAVE_R7 /* nothing */
-#define CALLER_RESTORE_R7 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R8
-#define CALLER_SAVE_R8 SAVE_R8 = R8;
-#define CALLER_RESTORE_R8 R8 = SAVE_R8;
-#else
-#define CALLER_SAVE_R8 /* nothing */
-#define CALLER_RESTORE_R8 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R9
-#define CALLER_SAVE_R9 SAVE_R9 = R9;
-#define CALLER_RESTORE_R9 R9 = SAVE_R9;
-#else
-#define CALLER_SAVE_R9 /* nothing */
-#define CALLER_RESTORE_R9 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_R10
-#define CALLER_SAVE_R10 SAVE_R10 = R10;
-#define CALLER_RESTORE_R10 R10 = SAVE_R10;
-#else
-#define CALLER_SAVE_R10 /* nothing */
-#define CALLER_RESTORE_R10 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_F1
-#define CALLER_SAVE_F1 SAVE_F1 = F1;
-#define CALLER_RESTORE_F1 F1 = SAVE_F1;
-#else
-#define CALLER_SAVE_F1 /* nothing */
-#define CALLER_RESTORE_F1 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_F2
-#define CALLER_SAVE_F2 SAVE_F2 = F2;
-#define CALLER_RESTORE_F2 F2 = SAVE_F2;
-#else
-#define CALLER_SAVE_F2 /* nothing */
-#define CALLER_RESTORE_F2 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_F3
-#define CALLER_SAVE_F3 SAVE_F3 = F3;
-#define CALLER_RESTORE_F3 F3 = SAVE_F3;
-#else
-#define CALLER_SAVE_F3 /* nothing */
-#define CALLER_RESTORE_F3 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_F4
-#define CALLER_SAVE_F4 SAVE_F4 = F4;
-#define CALLER_RESTORE_F4 F4 = SAVE_F4;
-#else
-#define CALLER_SAVE_F4 /* nothing */
-#define CALLER_RESTORE_F4 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_D1
-#define CALLER_SAVE_D1 SAVE_D1 = D1;
-#define CALLER_RESTORE_D1 D1 = SAVE_D1;
-#else
-#define CALLER_SAVE_D1 /* nothing */
-#define CALLER_RESTORE_D1 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_D2
-#define CALLER_SAVE_D2 SAVE_D2 = D2;
-#define CALLER_RESTORE_D2 D2 = SAVE_D2;
-#else
-#define CALLER_SAVE_D2 /* nothing */
-#define CALLER_RESTORE_D2 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_L1
-#define CALLER_SAVE_L1 SAVE_L1 = L1;
-#define CALLER_RESTORE_L1 L1 = SAVE_L1;
-#else
-#define CALLER_SAVE_L1 /* nothing */
-#define CALLER_RESTORE_L1 /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_Sp
-#define CALLER_SAVE_Sp SAVE_Sp = Sp;
-#define CALLER_RESTORE_Sp Sp = SAVE_Sp;
-#else
-#define CALLER_SAVE_Sp /* nothing */
-#define CALLER_RESTORE_Sp /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_SpLim
-#define CALLER_SAVE_SpLim SAVE_SpLim = SpLim;
-#define CALLER_RESTORE_SpLim SpLim = SAVE_SpLim;
-#else
-#define CALLER_SAVE_SpLim /* nothing */
-#define CALLER_RESTORE_SpLim /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_Hp
-#define CALLER_SAVE_Hp SAVE_Hp = Hp;
-#define CALLER_RESTORE_Hp Hp = SAVE_Hp;
-#else
-#define CALLER_SAVE_Hp /* nothing */
-#define CALLER_RESTORE_Hp /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_Base
-#ifdef THREADED_RTS
-#error "Can't have caller-saved BaseReg with THREADED_RTS"
-#endif
-#define CALLER_SAVE_Base /* nothing */
-#define CALLER_RESTORE_Base BaseReg = &MainRegTable;
-#else
-#define CALLER_SAVE_Base /* nothing */
-#define CALLER_RESTORE_Base /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_CurrentTSO
-#define CALLER_SAVE_CurrentTSO SAVE_CurrentTSO = CurrentTSO;
-#define CALLER_RESTORE_CurrentTSO CurrentTSO = SAVE_CurrentTSO;
-#else
-#define CALLER_SAVE_CurrentTSO /* nothing */
-#define CALLER_RESTORE_CurrentTSO /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_CurrentNursery
-#define CALLER_SAVE_CurrentNursery SAVE_CurrentNursery = CurrentNursery;
-#define CALLER_RESTORE_CurrentNursery CurrentNursery = SAVE_CurrentNursery;
-#else
-#define CALLER_SAVE_CurrentNursery /* nothing */
-#define CALLER_RESTORE_CurrentNursery /* nothing */
-#endif
-
-#ifdef CALLER_SAVES_HpAlloc
-#define CALLER_SAVE_HpAlloc SAVE_HpAlloc = HpAlloc;
-#define CALLER_RESTORE_HpAlloc HpAlloc = SAVE_HpAlloc;
-#else
-#define CALLER_SAVE_HpAlloc /* nothing */
-#define CALLER_RESTORE_HpAlloc /* nothing */
-#endif
-
-#endif /* IN_STG_CODE */
-
-/* ----------------------------------------------------------------------------
- Handy bunches of saves/restores
- ------------------------------------------------------------------------ */
-
-#if IN_STG_CODE
-
-#define CALLER_SAVE_USER \
- CALLER_SAVE_R1 \
- CALLER_SAVE_R2 \
- CALLER_SAVE_R3 \
- CALLER_SAVE_R4 \
- CALLER_SAVE_R5 \
- CALLER_SAVE_R6 \
- CALLER_SAVE_R7 \
- CALLER_SAVE_R8 \
- CALLER_SAVE_F1 \
- CALLER_SAVE_F2 \
- CALLER_SAVE_F3 \
- CALLER_SAVE_F4 \
- CALLER_SAVE_D1 \
- CALLER_SAVE_D2 \
- CALLER_SAVE_L1
-
- /* Save Base last, since the others may
- be addressed relative to it */
-#define CALLER_SAVE_SYSTEM \
- CALLER_SAVE_Sp \
- CALLER_SAVE_SpLim \
- CALLER_SAVE_Hp \
- CALLER_SAVE_CurrentTSO \
- CALLER_SAVE_CurrentNursery \
- CALLER_SAVE_Base
-
-#define CALLER_RESTORE_USER \
- CALLER_RESTORE_R1 \
- CALLER_RESTORE_R2 \
- CALLER_RESTORE_R3 \
- CALLER_RESTORE_R4 \
- CALLER_RESTORE_R5 \
- CALLER_RESTORE_R6 \
- CALLER_RESTORE_R7 \
- CALLER_RESTORE_R8 \
- CALLER_RESTORE_F1 \
- CALLER_RESTORE_F2 \
- CALLER_RESTORE_F3 \
- CALLER_RESTORE_F4 \
- CALLER_RESTORE_D1 \
- CALLER_RESTORE_D2 \
- CALLER_RESTORE_L1
-
- /* Restore Base first, since the others may
- be addressed relative to it */
-#define CALLER_RESTORE_SYSTEM \
- CALLER_RESTORE_Base \
- CALLER_RESTORE_Sp \
- CALLER_RESTORE_SpLim \
- CALLER_RESTORE_Hp \
- CALLER_RESTORE_CurrentTSO \
- CALLER_RESTORE_CurrentNursery
-
-#else /* not IN_STG_CODE */
-
-#define CALLER_SAVE_USER /* nothing */
-#define CALLER_SAVE_SYSTEM /* nothing */
-#define CALLER_RESTORE_USER /* nothing */
-#define CALLER_RESTORE_SYSTEM /* nothing */
-
-#endif /* IN_STG_CODE */
-#define CALLER_SAVE_ALL \
- CALLER_SAVE_SYSTEM \
- CALLER_SAVE_USER
-
-#define CALLER_RESTORE_ALL \
- CALLER_RESTORE_SYSTEM \
- CALLER_RESTORE_USER
-
-#endif /* REGS_H */
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