diff options
| -rw-r--r-- | gdb/config/mips/tm-mips.h | 133 |
1 files changed, 30 insertions, 103 deletions
diff --git a/gdb/config/mips/tm-mips.h b/gdb/config/mips/tm-mips.h index 2bb0486..e9f1fe2 100644 --- a/gdb/config/mips/tm-mips.h +++ b/gdb/config/mips/tm-mips.h @@ -42,6 +42,10 @@ struct value; #define GDB_TARGET_IS_MIPS64 0 #endif +#if !defined (MIPS_EABI) +#define MIPS_EABI 0 +#endif + #if !defined (TARGET_MONITOR_PROMPT) #define TARGET_MONITOR_PROMPT "<IDT>" #endif @@ -173,11 +177,11 @@ extern int in_sigtramp PARAMS ((CORE_ADDR, char *)); #define V0_REGNUM 2 /* Function integer return value */ #define A0_REGNUM 4 /* Loc of first arg during a subr call */ #if MIPS_EABI - #define MIPS_LAST_ARG_REGNUM 11 /* EABI uses R4 through R11 for args */ - #define MIPS_NUM_ARG_REGS 8 +# define MIPS_LAST_ARG_REGNUM 11 /* EABI uses R4 through R11 for args */ +# define MIPS_NUM_ARG_REGS 8 #else - #define MIPS_LAST_ARG_REGNUM 7 /* old ABI uses R4 through R7 for args */ - #define MIPS_NUM_ARG_REGS 4 +# define MIPS_LAST_ARG_REGNUM 7 /* old ABI uses R4 through R7 for args */ +# define MIPS_NUM_ARG_REGS 4 #endif #define SP_REGNUM 29 /* Contains address of top of stack */ #define RA_REGNUM 31 /* Contains return address value */ @@ -188,6 +192,14 @@ extern int in_sigtramp PARAMS ((CORE_ADDR, char *)); #define CAUSE_REGNUM 36 /* describes last exception */ #define PC_REGNUM 37 /* Contains program counter */ #define FP0_REGNUM 38 /* Floating point register 0 (single float) */ +#define FPA0_REGNUM (FP0_REGNUM+12) /* First float argument register */ +#if MIPS_EABI /* EABI uses F12 through F19 for args */ +# define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+19) +# define MIPS_NUM_FP_ARG_REGS 8 +#else /* old ABI uses F12 through F15 for args */ +# define MIPS_LAST_FP_ARG_REGNUM (FP0_REGNUM+15) +# define MIPS_NUM_FP_ARG_REGS 4 +#endif #define FCRCS_REGNUM 70 /* FP control/status */ #define FCRIR_REGNUM 71 /* FP implementation/revision */ #define FP_REGNUM 72 /* Pseudo register that contains true address of executing stack frame */ @@ -374,105 +386,20 @@ extern void mips_push_dummy_frame PARAMS ((void)); #define POP_FRAME mips_pop_frame() extern void mips_pop_frame PARAMS ((void)); -#define MK_OP(op,rs,rt,offset) (((op)<<26)|((rs)<<21)|((rt)<<16)|(offset)) -#ifndef OP_LDFPR -#define OP_LDFPR 061 /* lwc1 */ -#endif -#ifndef OP_LDGPR -#define OP_LDGPR 043 /* lw */ -#endif -#define CALL_DUMMY_SIZE (16*4) -#define Dest_Reg 2 -#define CALL_DUMMY {\ - MK_OP(0,RA_REGNUM,0,8), /* jr $ra # Fake ABOUT_TO_RETURN ...*/\ - 0, /* nop # ... to stop raw backtrace*/\ - 0x27bd0000, /* addu sp,?0 # Pseudo prologue */\ -/* Start here; reload FP regs, then GP regs: */\ - MK_OP(OP_LDFPR,SP_REGNUM,12,0 ), /* l[wd]c1 $f12,0(sp) */\ - MK_OP(OP_LDFPR,SP_REGNUM,13, MIPS_REGSIZE), /* l[wd]c1 $f13,{4,8}(sp) */\ - MK_OP(OP_LDFPR,SP_REGNUM,14,2*MIPS_REGSIZE), /* l[wd]c1 $f14,{8,16}(sp) */\ - MK_OP(OP_LDFPR,SP_REGNUM,15,3*MIPS_REGSIZE), /* l[wd]c1 $f15,{12,24}(sp) */\ - MK_OP(OP_LDGPR,SP_REGNUM, 4,0 ), /* l[wd] $r4,0(sp) */\ - MK_OP(OP_LDGPR,SP_REGNUM, 5, MIPS_REGSIZE), /* l[wd] $r5,{4,8}(sp) */\ - MK_OP(OP_LDGPR,SP_REGNUM, 6,2*MIPS_REGSIZE), /* l[wd] $r6,{8,16}(sp) */\ - MK_OP(OP_LDGPR,SP_REGNUM, 7,3*MIPS_REGSIZE), /* l[wd] $r7,{12,24}(sp) */\ - (017<<26)| (Dest_Reg << 16), /* lui $r31,<target upper 16 bits>*/\ - MK_OP(13,Dest_Reg,Dest_Reg,0), /* ori $r31,$r31,<lower 16 bits>*/ \ - (Dest_Reg<<21) | (31<<11) | 9, /* jalr $r31 */\ - MK_OP(OP_LDGPR,SP_REGNUM, 7,3*MIPS_REGSIZE), /* l[wd] $r7,{12,24}(sp) */\ - 0x5000d, /* bpt */\ -} - -#define CALL_DUMMY_START_OFFSET 12 - -#define CALL_DUMMY_BREAKPOINT_OFFSET (CALL_DUMMY_START_OFFSET + (12 * 4)) - -/* Insert the specified number of args and function address - into a call sequence of the above form stored at DUMMYNAME. */ - -/* For big endian mips machines we need to switch the order of the - words with a floating-point value (it was already coerced to a double - by mips_push_arguments). */ -#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) \ - do \ - { \ - store_unsigned_integer \ - (dummyname + 11 * 4, 4, \ - (extract_unsigned_integer (dummyname + 11 * 4, 4) \ - | (((fun) >> 16) & 0xffff))); \ - store_unsigned_integer \ - (dummyname + 12 * 4, 4, \ - (extract_unsigned_integer (dummyname + 12 * 4, 4) \ - | ((fun) & 0xffff))); \ - if (mips_fpu == MIPS_FPU_NONE) \ - { \ - store_unsigned_integer (dummyname + 3 * 4, 4, \ - (ULONGEST) 0); \ - store_unsigned_integer (dummyname + 4 * 4, 4, \ - (ULONGEST) 0); \ - store_unsigned_integer (dummyname + 5 * 4, 4, \ - (ULONGEST) 0); \ - store_unsigned_integer (dummyname + 6 * 4, 4, \ - (ULONGEST) 0); \ - } \ - else if (mips_fpu == MIPS_FPU_SINGLE) \ - { \ - /* This isn't right. mips_push_arguments will call \ - value_arg_coerce, which will convert all float arguments \ - to doubles. If the function prototype is float, though, \ - it will be expecting a float argument in a float \ - register. */ \ - store_unsigned_integer (dummyname + 4 * 4, 4, \ - (ULONGEST) 0); \ - store_unsigned_integer (dummyname + 6 * 4, 4, \ - (ULONGEST) 0); \ - } \ - else if (TARGET_BYTE_ORDER == BIG_ENDIAN \ - && ! GDB_TARGET_IS_MIPS64) \ - { \ - if (nargs > 0 \ - && TYPE_CODE (VALUE_TYPE (args[0])) == TYPE_CODE_FLT) \ - { \ - if (TYPE_LENGTH (VALUE_TYPE (args[0])) > 8) \ - error ("floating point value too large to pass to function");\ - store_unsigned_integer \ - (dummyname + 3 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 12, 4));\ - store_unsigned_integer \ - (dummyname + 4 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 13, 0));\ - } \ - if (nargs > 1 \ - && TYPE_CODE (VALUE_TYPE (args[1])) == TYPE_CODE_FLT) \ - { \ - if (TYPE_LENGTH (VALUE_TYPE (args[1])) > 8) \ - error ("floating point value too large to pass to function");\ - store_unsigned_integer \ - (dummyname + 5 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 14, 12));\ - store_unsigned_integer \ - (dummyname + 6 * 4, 4, MK_OP (OP_LDFPR, SP_REGNUM, 15, 8));\ - } \ - } \ - } \ - while (0) +#define CALL_DUMMY { 0 } + +#define CALL_DUMMY_START_OFFSET (0) + +#define CALL_DUMMY_BREAKPOINT_OFFSET (0) + +#define FIX_CALL_DUMMY(dummyname, start_sp, fun, nargs, args, rettype, gcc_p) + +#define CALL_DUMMY_LOCATION AT_ENTRY_POINT + +#define CALL_DUMMY_ADDRESS() (entry_point_address ()) + +extern int mips_pc_in_call_dummy PARAMS ((CORE_ADDR pc)); +#define PC_IN_CALL_DUMMY(PC, SP, FP) mips_pc_in_call_dummy (PC) /* There's a mess in stack frame creation. See comments in blockframe.c near reference to INIT_FRAME_PC_FIRST. */ |