diff options
Diffstat (limited to 'src/ortho/mcode/ortho_code-x86-abi.adb')
| -rw-r--r-- | src/ortho/mcode/ortho_code-x86-abi.adb | 118 |
1 files changed, 89 insertions, 29 deletions
diff --git a/src/ortho/mcode/ortho_code-x86-abi.adb b/src/ortho/mcode/ortho_code-x86-abi.adb index 0a4433941..aa6eb1913 100644 --- a/src/ortho/mcode/ortho_code-x86-abi.adb +++ b/src/ortho/mcode/ortho_code-x86-abi.adb @@ -25,28 +25,65 @@ with Ortho_Code.Dwarf; with Ortho_Code.X86; use Ortho_Code.X86; with Ortho_Code.X86.Insns; with Ortho_Code.X86.Emits; -with Ortho_Code.X86.Flags; with Binary_File; with Binary_File.Memory; with Ada.Text_IO; package body Ortho_Code.X86.Abi is + -- First argument is at %ebp + 8 / %rbp + 16 + Subprg_Stack_Init : constant Int32 := + Boolean'Pos (Flags.M64) * 16 + + Boolean'Pos (not Flags.M64) * 8; + procedure Start_Subprogram (Subprg : O_Dnode; Abi : out O_Abi_Subprg) is pragma Unreferenced (Subprg); begin - -- First argument is at %ebp + 8 - Abi.Offset := 8; + Abi := (Offset => Subprg_Stack_Init, Inum => 0, Fnum => 0); end Start_Subprogram; + type Regs_List is array (Natural range <>) of O_Reg; + Int_Regs : constant Regs_List := + (R_Di, R_Si, R_Dx, R_Cx, R_R8, R_R9); + Sse_Regs : constant Regs_List := + (R_Xmm0, R_Xmm1, R_Xmm2, R_Xmm3, R_Xmm4, R_Xmm5, R_Xmm6, R_Xmm7); + procedure New_Interface (Inter : O_Dnode; Abi : in out O_Abi_Subprg) is - Itype : O_Tnode; + Itype : constant O_Tnode := Get_Decl_Type (Inter); Size : Uns32; + Reg : O_Reg; begin - Itype := Get_Decl_Type (Inter); - Size := Get_Type_Size (Itype); - Size := (Size + 3) and not 3; + Reg := R_None; + + if Flags.M64 then + -- AMD64 ABI 3.2.3 Parameter passing + -- The size of each argument gets rounded up to eight bytes. + Size := 0; + case Get_Type_Mode (Itype) is + when Mode_Int | Mode_Uns | Mode_B2 | Mode_P64 => + if Abi.Inum <= Int_Regs'Last then + Reg := Int_Regs (Abi.Inum); + Abi.Inum := Abi.Inum + 1; + else + Size := 8; + end if; + when Mode_Fp => + if Abi.Fnum <= Sse_Regs'Last then + Reg := Sse_Regs (Abi.Fnum); + Abi.Fnum := Abi.Fnum + 1; + else + Size := 8; + end if; + when others => + -- Parameters are scalars. + raise Program_Error; + end case; + else + Size := Get_Type_Size (Itype); + Size := (Size + 3) and not 3; + end if; + Set_Decl_Reg (Inter, Reg); Set_Local_Offset (Inter, Abi.Offset); Abi.Offset := Abi.Offset + Int32 (Size); end New_Interface; @@ -57,10 +94,10 @@ package body Ortho_Code.X86.Abi is function To_Int32 is new Ada.Unchecked_Conversion (Source => Symbol, Target => Int32); begin - Set_Decl_Info (Subprg, - To_Int32 (Create_Symbol (Get_Decl_Ident (Subprg)))); - -- Offset is 8 biased. - Set_Subprg_Stack (Subprg, Abi.Offset - 8); + Set_Decl_Info + (Subprg, To_Int32 (Create_Symbol (Get_Decl_Ident (Subprg), True))); + -- Offset is 8/16 biased. + Set_Subprg_Stack (Subprg, Abi.Offset - Subprg_Stack_Init); end Finish_Subprogram; procedure Link_Stmt (Stmt : O_Enode) is @@ -281,8 +318,8 @@ package body Ortho_Code.X86.Abi is when Regs_R32 | R_Any32 | R_Any8 - | Regs_R64 - | R_Any64 + | Regs_Pair + | R_AnyPair | Regs_Cc | Regs_Fp | Regs_Xmm => @@ -301,6 +338,9 @@ package body Ortho_Code.X86.Abi is Disp_Irm_Code (Get_Expr_Left (Stmt)); Put (" + "); Disp_Irm_Code (Get_Expr_Right (Stmt)); + when OE_Addrg => + Put ("&"); + Disp_Decl_Name (Get_Addr_Object (Stmt)); when others => raise Program_Error; end case; @@ -695,14 +735,16 @@ package body Ortho_Code.X86.Abi is return " ir "; when R_I_Off => return "i+o "; - when R_Any32 => - return "r32 "; when R_Any_Cc => return "cc "; when R_Any8 => return "r8 "; + when R_Any32 => + return "r32 "; when R_Any64 => return "r64 "; + when R_AnyPair => + return "pair"; when R_St0 => return "st0 "; @@ -722,6 +764,23 @@ package body Ortho_Code.X86.Abi is return "sp "; when R_Bp => return "bp "; + when R_R8 => + return "r8 "; + when R_R9 => + return "r9 "; + when R_R10 => + return "r10 "; + when R_R11 => + return "r11 "; + when R_R12 => + return "r12 "; + when R_R13 => + return "r13 "; + when R_R14 => + return "r14 "; + when R_R15 => + return "r15 "; + when R_Edx_Eax => return "dxax"; when R_Ebx_Ecx => @@ -775,21 +834,22 @@ package body Ortho_Code.X86.Abi is procedure Chkstk (Sz : Integer); pragma Import (C, Chkstk, "__chkstk"); - procedure Link_Intrinsics - is + procedure Link_Intrinsics is begin - Binary_File.Memory.Set_Symbol_Address - (Ortho_Code.X86.Emits.Intrinsics_Symbol - (Ortho_Code.X86.Intrinsic_Mul_Ov_I64), - Muldi3'Address); - Binary_File.Memory.Set_Symbol_Address - (Ortho_Code.X86.Emits.Intrinsics_Symbol - (Ortho_Code.X86.Intrinsic_Div_Ov_I64), - Divdi3'Address); - Binary_File.Memory.Set_Symbol_Address - (Ortho_Code.X86.Emits.Intrinsics_Symbol - (Ortho_Code.X86.Intrinsic_Mod_Ov_I64), - Moddi3'Address); + if not Flags.M64 then + Binary_File.Memory.Set_Symbol_Address + (Ortho_Code.X86.Emits.Intrinsics_Symbol + (Ortho_Code.X86.Intrinsic_Mul_Ov_I64), + Muldi3'Address); + Binary_File.Memory.Set_Symbol_Address + (Ortho_Code.X86.Emits.Intrinsics_Symbol + (Ortho_Code.X86.Intrinsic_Div_Ov_I64), + Divdi3'Address); + Binary_File.Memory.Set_Symbol_Address + (Ortho_Code.X86.Emits.Intrinsics_Symbol + (Ortho_Code.X86.Intrinsic_Mod_Ov_I64), + Moddi3'Address); + end if; if X86.Flags.Flag_Alloca_Call then Binary_File.Memory.Set_Symbol_Address (Ortho_Code.X86.Emits.Chkstk_Symbol, Chkstk'Address); |