Edit
kc3-lang/libffi/src/alpha/osf.S
Anthony Green
- src/alpha/osf.S
-
/* ----------------------------------------------------------------------- osf.S - Copyright (c) 1998, 2001, 2007, 2008, 2011 Red Hat Alpha/OSF Foreign Function Interface Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ``Software''), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------- */ #define LIBFFI_ASM #include <fficonfig.h> #include <ffi.h> .arch ev6 .text /* ffi_call_osf (void *args, unsigned long bytes, unsigned flags, void *raddr, void (*fnaddr)(void)); Bit o trickiness here -- ARGS+BYTES is the base of the stack frame for this function. This has been allocated by ffi_call. We also deallocate some of the stack that has been alloca'd. */ .align 3 .globl ffi_call_osf .ent ffi_call_osf FFI_HIDDEN(ffi_call_osf) ffi_call_osf: .frame $15, 32, $26, 0 .mask 0x4008000, -32 $LFB1: addq $16,$17,$1 mov $16, $30 stq $26, 0($1) stq $15, 8($1) stq $18, 16($1) mov $1, $15 $LCFI1: .prologue 0 stq $19, 24($1) mov $20, $27 # Load up all of the (potential) argument registers. ldq $16, 0($30) ldt $f16, 0($30) ldt $f17, 8($30) ldq $17, 8($30) ldt $f18, 16($30) ldq $18, 16($30) ldt $f19, 24($30) ldq $19, 24($30) ldt $f20, 32($30) ldq $20, 32($30) ldt $f21, 40($30) ldq $21, 40($30) # Deallocate the register argument area. lda $30, 48($30) jsr $26, ($27), 0 ldgp $29, 0($26) # If the return value pointer is NULL, assume no return value. ldq $19, 24($15) ldq $18, 16($15) ldq $26, 0($15) $LCFI2: beq $19, $noretval # Store the return value out in the proper type. cmpeq $18, FFI_TYPE_INT, $1 bne $1, $retint cmpeq $18, FFI_TYPE_FLOAT, $2 bne $2, $retfloat cmpeq $18, FFI_TYPE_DOUBLE, $3 bne $3, $retdouble .align 3 $noretval: ldq $15, 8($15) ret .align 4 $retint: stq $0, 0($19) nop ldq $15, 8($15) ret .align 4 $retfloat: sts $f0, 0($19) nop ldq $15, 8($15) ret .align 4 $retdouble: stt $f0, 0($19) nop ldq $15, 8($15) ret $LFE1: .end ffi_call_osf /* ffi_closure_osf(...) Receives the closure argument in $1. */ .align 3 .globl ffi_closure_osf .ent ffi_closure_osf FFI_HIDDEN(ffi_closure_osf) ffi_closure_osf: .frame $30, 16*8, $26, 0 .mask 0x4000000, -16*8 $LFB2: ldgp $29, 0($27) subq $30, 16*8, $30 $LCFI5: stq $26, 0($30) $LCFI6: .prologue 1 # Store all of the potential argument registers in va_list format. stt $f16, 4*8($30) stt $f17, 5*8($30) stt $f18, 6*8($30) stt $f19, 7*8($30) stt $f20, 8*8($30) stt $f21, 9*8($30) stq $16, 10*8($30) stq $17, 11*8($30) stq $18, 12*8($30) stq $19, 13*8($30) stq $20, 14*8($30) stq $21, 15*8($30) # Call ffi_closure_osf_inner to do the bulk of the work. mov $1, $16 lda $17, 2*8($30) lda $18, 10*8($30) jsr $26, ffi_closure_osf_inner ldgp $29, 0($26) ldq $26, 0($30) # Load up the return value in the proper type. lda $1, $load_table s4addq $0, $1, $1 ldl $1, 0($1) addq $1, $29, $1 jmp $31, ($1), $load_32 .align 4 $load_none: addq $30, 16*8, $30 ret .align 4 $load_float: lds $f0, 16($30) nop addq $30, 16*8, $30 ret .align 4 $load_double: ldt $f0, 16($30) nop addq $30, 16*8, $30 ret .align 4 $load_u8: #ifdef __alpha_bwx__ ldbu $0, 16($30) nop #else ldq $0, 16($30) and $0, 255, $0 #endif addq $30, 16*8, $30 ret .align 4 $load_s8: #ifdef __alpha_bwx__ ldbu $0, 16($30) sextb $0, $0 #else ldq $0, 16($30) sll $0, 56, $0 sra $0, 56, $0 #endif addq $30, 16*8, $30 ret .align 4 $load_u16: #ifdef __alpha_bwx__ ldwu $0, 16($30) nop #else ldq $0, 16($30) zapnot $0, 3, $0 #endif addq $30, 16*8, $30 ret .align 4 $load_s16: #ifdef __alpha_bwx__ ldwu $0, 16($30) sextw $0, $0 #else ldq $0, 16($30) sll $0, 48, $0 sra $0, 48, $0 #endif addq $30, 16*8, $30 ret .align 4 $load_32: ldl $0, 16($30) nop addq $30, 16*8, $30 ret .align 4 $load_64: ldq $0, 16($30) nop addq $30, 16*8, $30 ret $LFE2: .end ffi_closure_osf #ifdef __ELF__ .section .rodata #else .rdata #endif $load_table: .gprel32 $load_none # FFI_TYPE_VOID .gprel32 $load_32 # FFI_TYPE_INT .gprel32 $load_float # FFI_TYPE_FLOAT .gprel32 $load_double # FFI_TYPE_DOUBLE .gprel32 $load_none # FFI_TYPE_LONGDOUBLE .gprel32 $load_u8 # FFI_TYPE_UINT8 .gprel32 $load_s8 # FFI_TYPE_SINT8 .gprel32 $load_u16 # FFI_TYPE_UINT16 .gprel32 $load_s16 # FFI_TYPE_SINT16 .gprel32 $load_32 # FFI_TYPE_UINT32 .gprel32 $load_32 # FFI_TYPE_SINT32 .gprel32 $load_64 # FFI_TYPE_UINT64 .gprel32 $load_64 # FFI_TYPE_SINT64 .gprel32 $load_none # FFI_TYPE_STRUCT .gprel32 $load_64 # FFI_TYPE_POINTER /* Assert that the table above is in sync with ffi.h. */ #if FFI_TYPE_FLOAT != 2 \ || FFI_TYPE_DOUBLE != 3 \ || FFI_TYPE_UINT8 != 5 \ || FFI_TYPE_SINT8 != 6 \ || FFI_TYPE_UINT16 != 7 \ || FFI_TYPE_SINT16 != 8 \ || FFI_TYPE_UINT32 != 9 \ || FFI_TYPE_SINT32 != 10 \ || FFI_TYPE_UINT64 != 11 \ || FFI_TYPE_SINT64 != 12 \ || FFI_TYPE_STRUCT != 13 \ || FFI_TYPE_POINTER != 14 \ || FFI_TYPE_LAST != 14 #error "osf.S out of sync with ffi.h" #endif #ifdef __ELF__ # define UA_SI .4byte # define FDE_ENCODING 0x1b /* pcrel sdata4 */ # define FDE_ENCODE(X) .4byte X-. # define FDE_ARANGE(X) .4byte X #elif defined __osf__ # define UA_SI .align 0; .long # define FDE_ENCODING 0x50 /* aligned absolute */ # define FDE_ENCODE(X) .align 3; .quad X # define FDE_ARANGE(X) .align 0; .quad X #endif #ifdef __ELF__ .section .eh_frame,EH_FRAME_FLAGS,@progbits #elif defined __osf__ .data .align 3 .globl _GLOBAL__F_ffi_call_osf _GLOBAL__F_ffi_call_osf: #endif __FRAME_BEGIN__: UA_SI $LECIE1-$LSCIE1 # Length of Common Information Entry $LSCIE1: UA_SI 0x0 # CIE Identifier Tag .byte 0x1 # CIE Version .ascii "zR\0" # CIE Augmentation .byte 0x1 # uleb128 0x1; CIE Code Alignment Factor .byte 0x78 # sleb128 -8; CIE Data Alignment Factor .byte 26 # CIE RA Column .byte 0x1 # uleb128 0x1; Augmentation size .byte FDE_ENCODING # FDE Encoding .byte 0xc # DW_CFA_def_cfa .byte 30 # uleb128 column 30 .byte 0 # uleb128 offset 0 .align 3 $LECIE1: $LSFDE1: UA_SI $LEFDE1-$LASFDE1 # FDE Length $LASFDE1: UA_SI $LASFDE1-__FRAME_BEGIN__ # FDE CIE offset FDE_ENCODE($LFB1) # FDE initial location FDE_ARANGE($LFE1-$LFB1) # FDE address range .byte 0x0 # uleb128 0x0; Augmentation size .byte 0x4 # DW_CFA_advance_loc4 UA_SI $LCFI1-$LFB1 .byte 0x9a # DW_CFA_offset, column 26 .byte 4 # uleb128 4*-8 .byte 0x8f # DW_CFA_offset, column 15 .byte 0x3 # uleb128 3*-8 .byte 0xc # DW_CFA_def_cfa .byte 15 # uleb128 column 15 .byte 32 # uleb128 offset 32 .byte 0x4 # DW_CFA_advance_loc4 UA_SI $LCFI2-$LCFI1 .byte 0xda # DW_CFA_restore, column 26 .align 3 $LEFDE1: $LSFDE3: UA_SI $LEFDE3-$LASFDE3 # FDE Length $LASFDE3: UA_SI $LASFDE3-__FRAME_BEGIN__ # FDE CIE offset FDE_ENCODE($LFB2) # FDE initial location FDE_ARANGE($LFE2-$LFB2) # FDE address range .byte 0x0 # uleb128 0x0; Augmentation size .byte 0x4 # DW_CFA_advance_loc4 UA_SI $LCFI5-$LFB2 .byte 0xe # DW_CFA_def_cfa_offset .byte 0x80,0x1 # uleb128 128 .byte 0x4 # DW_CFA_advance_loc4 UA_SI $LCFI6-$LCFI5 .byte 0x9a # DW_CFA_offset, column 26 .byte 16 # uleb128 offset 16*-8 .align 3 $LEFDE3: #if defined __osf__ .align 0 .long 0 # End of Table #endif #if defined __ELF__ && defined __linux__ .section .note.GNU-stack,"",@progbits #endif