* config/mips/tm-mips.h: Get rid of call-dummy code.
Minor changes to make pre-ANSI compilers happy.
This commit is contained in:
Mark Alexander
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9d78e1afcc
commit
509ffa78cf
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@ -42,6 +42,10 @@ struct value;
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#define GDB_TARGET_IS_MIPS64 0
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#endif
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#if !defined (MIPS_EABI)
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#define MIPS_EABI 0
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#endif
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#if !defined (TARGET_MONITOR_PROMPT)
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#define TARGET_MONITOR_PROMPT "<IDT>"
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#endif
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@ -173,11 +177,11 @@ extern int in_sigtramp PARAMS ((CORE_ADDR, char *));
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#define V0_REGNUM 2 /* Function integer return value */
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#define A0_REGNUM 4 /* Loc of first arg during a subr call */
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#if MIPS_EABI
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#define MIPS_LAST_ARG_REGNUM 11 /* EABI uses R4 through R11 for args */
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#define MIPS_NUM_ARG_REGS 8
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# define MIPS_LAST_ARG_REGNUM 11 /* EABI uses R4 through R11 for args */
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# define MIPS_NUM_ARG_REGS 8
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#else
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#define MIPS_LAST_ARG_REGNUM 7 /* old ABI uses R4 through R7 for args */
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#define MIPS_NUM_ARG_REGS 4
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# define MIPS_LAST_ARG_REGNUM 7 /* old ABI uses R4 through R7 for args */
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# define MIPS_NUM_ARG_REGS 4
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#endif
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#define SP_REGNUM 29 /* Contains address of top of stack */
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#define RA_REGNUM 31 /* Contains return address value */
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@ -188,6 +192,14 @@ extern int in_sigtramp PARAMS ((CORE_ADDR, char *));
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#define CAUSE_REGNUM 36 /* describes last exception */
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#define PC_REGNUM 37 /* Contains program counter */
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#define FP0_REGNUM 38 /* Floating point register 0 (single float) */
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#define FPA0_REGNUM (FP0_REGNUM+12) /* First float argument register */
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#if MIPS_EABI /* EABI uses F12 through F19 for args */
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# define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+19)
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# define MIPS_NUM_FP_ARG_REGS 8
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#else /* old ABI uses F12 through F15 for args */
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# define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+15)
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# define MIPS_NUM_FP_ARG_REGS 4
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#endif
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#define FCRCS_REGNUM 70 /* FP control/status */
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#define FCRIR_REGNUM 71 /* FP implementation/revision */
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#define FP_REGNUM 72 /* Pseudo register that contains true address of executing stack frame */
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@ -374,105 +386,20 @@ extern void mips_push_dummy_frame PARAMS ((void));
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#define POP_FRAME mips_pop_frame()
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extern void mips_pop_frame PARAMS ((void));
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#define MK_OP(op,rs,rt,offset) (((op)<<26)|((rs)<<21)|((rt)<<16)|(offset))
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#ifndef OP_LDFPR
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#define OP_LDFPR 061 /* lwc1 */
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#endif
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#ifndef OP_LDGPR
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#define OP_LDGPR 043 /* lw */
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#endif
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#define CALL_DUMMY_SIZE (16*4)
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#define Dest_Reg 2
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#define CALL_DUMMY {\
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MK_OP(0,RA_REGNUM,0,8), /* jr $ra # Fake ABOUT_TO_RETURN ...*/\
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0, /* nop # ... to stop raw backtrace*/\
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0x27bd0000, /* addu sp,?0 # Pseudo prologue */\
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/* Start here; reload FP regs, then GP regs: */\
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MK_OP(OP_LDFPR,SP_REGNUM,12,0 ), /* l[wd]c1 $f12,0(sp) */\
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MK_OP(OP_LDFPR,SP_REGNUM,13, MIPS_REGSIZE), /* l[wd]c1 $f13,{4,8}(sp) */\
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MK_OP(OP_LDFPR,SP_REGNUM,14,2*MIPS_REGSIZE), /* l[wd]c1 $f14,{8,16}(sp) */\
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MK_OP(OP_LDFPR,SP_REGNUM,15,3*MIPS_REGSIZE), /* l[wd]c1 $f15,{12,24}(sp) */\
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MK_OP(OP_LDGPR,SP_REGNUM, 4,0 ), /* l[wd] $r4,0(sp) */\
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MK_OP(OP_LDGPR,SP_REGNUM, 5, MIPS_REGSIZE), /* l[wd] $r5,{4,8}(sp) */\
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MK_OP(OP_LDGPR,SP_REGNUM, 6,2*MIPS_REGSIZE), /* l[wd] $r6,{8,16}(sp) */\
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MK_OP(OP_LDGPR,SP_REGNUM, 7,3*MIPS_REGSIZE), /* l[wd] $r7,{12,24}(sp) */\
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(017<<26)| (Dest_Reg << 16), /* lui $r31,<target upper 16 bits>*/\
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MK_OP(13,Dest_Reg,Dest_Reg,0), /* ori $r31,$r31,<lower 16 bits>*/ \
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(Dest_Reg<<21) | (31<<11) | 9, /* jalr $r31 */\
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MK_OP(OP_LDGPR,SP_REGNUM, 7,3*MIPS_REGSIZE), /* l[wd] $r7,{12,24}(sp) */\
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0x5000d, /* bpt */\
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}
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#define CALL_DUMMY { 0 }
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#define CALL_DUMMY_START_OFFSET 12
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#define CALL_DUMMY_START_OFFSET (0)
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#define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + (12 * 4))
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#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
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/* Insert the specified number of args and function address
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into a call sequence of the above form stored at DUMMYNAME. */
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#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p)
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/* For big endian mips machines we need to switch the order of the
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words with a floating-point value (it was already coerced to a double
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by mips_push_arguments). */
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#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) \
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do \
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{ \
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store_unsigned_integer \
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(dummyname + 11 * 4, 4, \
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(extract_unsigned_integer (dummyname + 11 * 4, 4) \
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| (((fun) >> 16) & 0xffff))); \
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store_unsigned_integer \
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(dummyname + 12 * 4, 4, \
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(extract_unsigned_integer (dummyname + 12 * 4, 4) \
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| ((fun) & 0xffff))); \
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if (mips_fpu == MIPS_FPU_NONE) \
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{ \
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store_unsigned_integer (dummyname + 3 * 4, 4, \
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(ULONGEST) 0); \
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store_unsigned_integer (dummyname + 4 * 4, 4, \
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(ULONGEST) 0); \
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store_unsigned_integer (dummyname + 5 * 4, 4, \
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(ULONGEST) 0); \
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store_unsigned_integer (dummyname + 6 * 4, 4, \
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(ULONGEST) 0); \
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} \
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else if (mips_fpu == MIPS_FPU_SINGLE) \
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{ \
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/* This isn't right. mips_push_arguments will call \
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value_arg_coerce, which will convert all float arguments \
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to doubles. If the function prototype is float, though, \
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it will be expecting a float argument in a float \
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register. */ \
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store_unsigned_integer (dummyname + 4 * 4, 4, \
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(ULONGEST) 0); \
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store_unsigned_integer (dummyname + 6 * 4, 4, \
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(ULONGEST) 0); \
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} \
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else if (TARGET_BYTE_ORDER == BIG_ENDIAN \
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&& ! GDB_TARGET_IS_MIPS64) \
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{ \
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if (nargs > 0 \
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&& TYPE_CODE (VALUE_TYPE (args[0])) == TYPE_CODE_FLT) \
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{ \
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if (TYPE_LENGTH (VALUE_TYPE (args[0])) > 8) \
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error ("floating point value too large to pass to function");\
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store_unsigned_integer \
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(dummyname + 3 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 12, 4));\
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store_unsigned_integer \
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(dummyname + 4 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 13, 0));\
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} \
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if (nargs > 1 \
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&& TYPE_CODE (VALUE_TYPE (args[1])) == TYPE_CODE_FLT) \
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{ \
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if (TYPE_LENGTH (VALUE_TYPE (args[1])) > 8) \
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error ("floating point value too large to pass to function");\
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store_unsigned_integer \
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(dummyname + 5 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 14, 12));\
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store_unsigned_integer \
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(dummyname + 6 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 15, 8));\
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} \
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} \
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} \
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while (0)
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#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
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#define CALL_DUMMY_ADDRESS() (entry_point_address ())
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extern int mips_pc_in_call_dummy PARAMS ((CORE_ADDR pc));
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#define PC_IN_CALL_DUMMY(PC, SP, FP) mips_pc_in_call_dummy (PC)
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/* There's a mess in stack frame creation. See comments in blockframe.c
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near reference to INIT_FRAME_PC_FIRST. */
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