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| /* -----------------------------------------------------------------------
| sysv.S - Copyright (c) 2003, 2004, 2006, 2008 Kaz Kojima
|
| SuperH SHmedia 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>
| #ifdef HAVE_MACHINE_ASM_H
| #include <machine/asm.h>
| #else
| /* XXX these lose for some platforms, I'm sure. */
| #define CNAME(x) x
| #define ENTRY(x) .globl CNAME(x); .type CNAME(x),%function; CNAME(x):
| #endif
|
| #ifdef __LITTLE_ENDIAN__
| #define OFS_FLT 0
| #else
| #define OFS_FLT 4
| #endif
|
| .section .text..SHmedia32,"ax"
|
| # r2: ffi_prep_args
| # r3: &ecif
| # r4: bytes
| # r5: flags
| # r6: flags2
| # r7: rvalue
| # r8: fn
|
| # This assumes we are using gas.
| .align 5
| ENTRY(ffi_call_SYSV)
| # Save registers
| .LFB1:
| addi.l r15, -48, r15
| .LCFI0:
| st.q r15, 40, r32
| st.q r15, 32, r31
| st.q r15, 24, r30
| st.q r15, 16, r29
| st.q r15, 8, r28
| st.l r15, 4, r18
| st.l r15, 0, r14
| .LCFI1:
| add.l r15, r63, r14
| .LCFI2:
| # add r4, r63, r28
| add r5, r63, r29
| add r6, r63, r30
| add r7, r63, r31
| add r8, r63, r32
|
| addi r4, (64 + 7), r4
| andi r4, ~7, r4
| sub.l r15, r4, r15
|
| ptabs/l r2, tr0
| add r15, r63, r2
| blink tr0, r18
|
| addi r15, 64, r22
| movi 0, r0
| movi 0, r1
| movi -1, r23
|
| pt/l 1f, tr1
| bnei/l r29, FFI_TYPE_STRUCT, tr1
| ld.l r15, 0, r19
| addi r15, 8, r15
| addi r0, 1, r0
| 1:
|
| .L_pass:
| andi r30, 3, r20
| shlri r30, 2, r30
|
| pt/l .L_call_it, tr0
| pt/l .L_pass_i, tr1
| pt/l .L_pass_f, tr2
|
| beqi/l r20, FFI_TYPE_VOID, tr0
| beqi/l r20, FFI_TYPE_INT, tr1
| beqi/l r20, FFI_TYPE_FLOAT, tr2
|
| .L_pass_d:
| addi r0, 1, r0
| pt/l 3f, tr0
| movi 12, r20
| bge/l r1, r20, tr0
|
| pt/l .L_pop_d, tr1
| pt/l 2f, tr0
| blink tr1, r63
| 2:
| addi.l r15, 8, r15
| 3:
| pt/l .L_pass, tr0
| addi r1, 2, r1
| blink tr0, r63
|
| .L_pop_d:
| pt/l .L_pop_d_tbl, tr1
| gettr tr1, r20
| shlli r1, 2, r21
| add r20, r21, r20
| ptabs/l r20, tr1
| blink tr1, r63
|
| .L_pop_d_tbl:
| fld.d r15, 0, dr0
| blink tr0, r63
| fld.d r15, 0, dr2
| blink tr0, r63
| fld.d r15, 0, dr4
| blink tr0, r63
| fld.d r15, 0, dr6
| blink tr0, r63
| fld.d r15, 0, dr8
| blink tr0, r63
| fld.d r15, 0, dr10
| blink tr0, r63
|
| .L_pass_f:
| addi r0, 1, r0
| pt/l 3f, tr0
| movi 12, r20
| bge/l r1, r20, tr0
|
| pt/l .L_pop_f, tr1
| pt/l 2f, tr0
| blink tr1, r63
| 2:
| addi.l r15, 8, r15
| 3:
| pt/l .L_pass, tr0
| blink tr0, r63
|
| .L_pop_f:
| pt/l .L_pop_f_tbl, tr1
| pt/l 5f, tr2
| gettr tr1, r20
| bge/l r23, r63, tr2
| add r1, r63, r23
| shlli r1, 3, r21
| addi r1, 2, r1
| add r20, r21, r20
| ptabs/l r20, tr1
| blink tr1, r63
| 5:
| addi r23, 1, r21
| movi -1, r23
| shlli r21, 3, r21
| add r20, r21, r20
| ptabs/l r20, tr1
| blink tr1, r63
|
| .L_pop_f_tbl:
| fld.s r15, OFS_FLT, fr0
| blink tr0, r63
| fld.s r15, OFS_FLT, fr1
| blink tr0, r63
| fld.s r15, OFS_FLT, fr2
| blink tr0, r63
| fld.s r15, OFS_FLT, fr3
| blink tr0, r63
| fld.s r15, OFS_FLT, fr4
| blink tr0, r63
| fld.s r15, OFS_FLT, fr5
| blink tr0, r63
| fld.s r15, OFS_FLT, fr6
| blink tr0, r63
| fld.s r15, OFS_FLT, fr7
| blink tr0, r63
| fld.s r15, OFS_FLT, fr8
| blink tr0, r63
| fld.s r15, OFS_FLT, fr9
| blink tr0, r63
| fld.s r15, OFS_FLT, fr10
| blink tr0, r63
| fld.s r15, OFS_FLT, fr11
| blink tr0, r63
|
| .L_pass_i:
| pt/l 3f, tr0
| movi 8, r20
| bge/l r0, r20, tr0
|
| pt/l .L_pop_i, tr1
| pt/l 2f, tr0
| blink tr1, r63
| 2:
| addi.l r15, 8, r15
| 3:
| pt/l .L_pass, tr0
| addi r0, 1, r0
| blink tr0, r63
|
| .L_pop_i:
| pt/l .L_pop_i_tbl, tr1
| gettr tr1, r20
| shlli r0, 3, r21
| add r20, r21, r20
| ptabs/l r20, tr1
| blink tr1, r63
|
| .L_pop_i_tbl:
| ld.q r15, 0, r2
| blink tr0, r63
| ld.q r15, 0, r3
| blink tr0, r63
| ld.q r15, 0, r4
| blink tr0, r63
| ld.q r15, 0, r5
| blink tr0, r63
| ld.q r15, 0, r6
| blink tr0, r63
| ld.q r15, 0, r7
| blink tr0, r63
| ld.q r15, 0, r8
| blink tr0, r63
| ld.q r15, 0, r9
| blink tr0, r63
|
| .L_call_it:
| # call function
| pt/l 1f, tr1
| bnei/l r29, FFI_TYPE_STRUCT, tr1
| add r19, r63, r2
| 1:
| add r22, r63, r15
| ptabs/l r32, tr0
| blink tr0, r18
|
| pt/l .L_ret_i, tr0
| pt/l .L_ret_ll, tr1
| pt/l .L_ret_d, tr2
| pt/l .L_ret_f, tr3
| pt/l .L_epilogue, tr4
|
| beqi/l r29, FFI_TYPE_INT, tr0
| beqi/l r29, FFI_TYPE_UINT32, tr0
| beqi/l r29, FFI_TYPE_SINT64, tr1
| beqi/l r29, FFI_TYPE_UINT64, tr1
| beqi/l r29, FFI_TYPE_DOUBLE, tr2
| beqi/l r29, FFI_TYPE_FLOAT, tr3
|
| pt/l .L_ret_q, tr0
| pt/l .L_ret_h, tr1
|
| beqi/l r29, FFI_TYPE_UINT8, tr0
| beqi/l r29, FFI_TYPE_UINT16, tr1
| blink tr4, r63
|
| .L_ret_d:
| fst.d r31, 0, dr0
| blink tr4, r63
|
| .L_ret_ll:
| st.q r31, 0, r2
| blink tr4, r63
|
| .L_ret_f:
| fst.s r31, OFS_FLT, fr0
| blink tr4, r63
|
| .L_ret_q:
| st.b r31, 0, r2
| blink tr4, r63
|
| .L_ret_h:
| st.w r31, 0, r2
| blink tr4, r63
|
| .L_ret_i:
| st.l r31, 0, r2
| # Fall
|
| .L_epilogue:
| # Remove the space we pushed for the args
| add r14, r63, r15
|
| ld.l r15, 0, r14
| ld.l r15, 4, r18
| ld.q r15, 8, r28
| ld.q r15, 16, r29
| ld.q r15, 24, r30
| ld.q r15, 32, r31
| ld.q r15, 40, r32
| addi.l r15, 48, r15
| ptabs r18, tr0
| blink tr0, r63
|
| .LFE1:
| .ffi_call_SYSV_end:
| .size CNAME(ffi_call_SYSV),.ffi_call_SYSV_end-CNAME(ffi_call_SYSV)
|
| .align 5
| ENTRY(ffi_closure_SYSV)
| .LFB2:
| addi.l r15, -136, r15
| .LCFI3:
| st.l r15, 12, r18
| st.l r15, 8, r14
| st.l r15, 4, r12
| .LCFI4:
| add r15, r63, r14
| .LCFI5:
| /* Stack layout:
| ...
| 64 bytes (register parameters)
| 48 bytes (floating register parameters)
| 8 bytes (result)
| 4 bytes (r18)
| 4 bytes (r14)
| 4 bytes (r12)
| 4 bytes (for align)
| <- new stack pointer
| */
| fst.d r14, 24, dr0
| fst.d r14, 32, dr2
| fst.d r14, 40, dr4
| fst.d r14, 48, dr6
| fst.d r14, 56, dr8
| fst.d r14, 64, dr10
| st.q r14, 72, r2
| st.q r14, 80, r3
| st.q r14, 88, r4
| st.q r14, 96, r5
| st.q r14, 104, r6
| st.q r14, 112, r7
| st.q r14, 120, r8
| st.q r14, 128, r9
|
| add r1, r63, r2
| addi r14, 16, r3
| addi r14, 72, r4
| addi r14, 24, r5
| addi r14, 136, r6
| #ifdef PIC
| movi (((datalabel _GLOBAL_OFFSET_TABLE_-(.LPCS0-.)) >> 16) & 65535), r12
| shori ((datalabel _GLOBAL_OFFSET_TABLE_-(.LPCS0-.)) & 65535), r12
| .LPCS0: ptrel/u r12, tr0
| movi ((ffi_closure_helper_SYSV@GOTPLT) & 65535), r1
| gettr tr0, r12
| ldx.l r1, r12, r1
| ptabs r1, tr0
| #else
| pt/l ffi_closure_helper_SYSV, tr0
| #endif
| blink tr0, r18
|
| shlli r2, 1, r1
| movi (((datalabel .L_table) >> 16) & 65535), r2
| shori ((datalabel .L_table) & 65535), r2
| ldx.w r2, r1, r1
| add r1, r2, r1
| pt/l .L_case_v, tr1
| ptabs r1, tr0
| blink tr0, r63
|
| .align 2
| .L_table:
| .word .L_case_v - datalabel .L_table /* FFI_TYPE_VOID */
| .word .L_case_i - datalabel .L_table /* FFI_TYPE_INT */
| .word .L_case_f - datalabel .L_table /* FFI_TYPE_FLOAT */
| .word .L_case_d - datalabel .L_table /* FFI_TYPE_DOUBLE */
| .word .L_case_d - datalabel .L_table /* FFI_TYPE_LONGDOUBLE */
| .word .L_case_uq - datalabel .L_table /* FFI_TYPE_UINT8 */
| .word .L_case_q - datalabel .L_table /* FFI_TYPE_SINT8 */
| .word .L_case_uh - datalabel .L_table /* FFI_TYPE_UINT16 */
| .word .L_case_h - datalabel .L_table /* FFI_TYPE_SINT16 */
| .word .L_case_i - datalabel .L_table /* FFI_TYPE_UINT32 */
| .word .L_case_i - datalabel .L_table /* FFI_TYPE_SINT32 */
| .word .L_case_ll - datalabel .L_table /* FFI_TYPE_UINT64 */
| .word .L_case_ll - datalabel .L_table /* FFI_TYPE_SINT64 */
| .word .L_case_v - datalabel .L_table /* FFI_TYPE_STRUCT */
| .word .L_case_i - datalabel .L_table /* FFI_TYPE_POINTER */
|
| .align 2
| .L_case_d:
| fld.d r14, 16, dr0
| blink tr1, r63
| .L_case_f:
| fld.s r14, 16, fr0
| blink tr1, r63
| .L_case_ll:
| ld.q r14, 16, r2
| blink tr1, r63
| .L_case_i:
| ld.l r14, 16, r2
| blink tr1, r63
| .L_case_q:
| ld.b r14, 16, r2
| blink tr1, r63
| .L_case_uq:
| ld.ub r14, 16, r2
| blink tr1, r63
| .L_case_h:
| ld.w r14, 16, r2
| blink tr1, r63
| .L_case_uh:
| ld.uw r14, 16, r2
| blink tr1, r63
| .L_case_v:
| add.l r14, r63, r15
| ld.l r15, 4, r12
| ld.l r15, 8, r14
| ld.l r15, 12, r18
| addi.l r15, 136, r15
| ptabs r18, tr0
| blink tr0, r63
|
| .LFE2:
| .ffi_closure_SYSV_end:
| .size CNAME(ffi_closure_SYSV),.ffi_closure_SYSV_end-CNAME(ffi_closure_SYSV)
|
| #if defined __ELF__ && defined __linux__
| .section .note.GNU-stack,"",@progbits
| #endif
|
| .section ".eh_frame","aw",@progbits
| __FRAME_BEGIN__:
| .4byte .LECIE1-.LSCIE1 /* Length of Common Information Entry */
| .LSCIE1:
| .4byte 0x0 /* CIE Identifier Tag */
| .byte 0x1 /* CIE Version */
| #ifdef PIC
| .ascii "zR\0" /* CIE Augmentation */
| #else
| .byte 0x0 /* CIE Augmentation */
| #endif
| .uleb128 0x1 /* CIE Code Alignment Factor */
| .sleb128 -4 /* CIE Data Alignment Factor */
| .byte 0x12 /* CIE RA Column */
| #ifdef PIC
| .uleb128 0x1 /* Augmentation size */
| .byte 0x10 /* FDE Encoding (pcrel) */
| #endif
| .byte 0xc /* DW_CFA_def_cfa */
| .uleb128 0xf
| .uleb128 0x0
| .align 2
| .LECIE1:
| .LSFDE1:
| .4byte datalabel .LEFDE1-datalabel .LASFDE1 /* FDE Length */
| .LASFDE1:
| .4byte datalabel .LASFDE1-datalabel __FRAME_BEGIN__
| #ifdef PIC
| .4byte .LFB1-. /* FDE initial location */
| #else
| .4byte .LFB1 /* FDE initial location */
| #endif
| .4byte datalabel .LFE1-datalabel .LFB1 /* FDE address range */
| #ifdef PIC
| .uleb128 0x0 /* Augmentation size */
| #endif
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI0-datalabel .LFB1
| .byte 0xe /* DW_CFA_def_cfa_offset */
| .uleb128 0x30
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI1-datalabel .LCFI0
| .byte 0x8e /* DW_CFA_offset, column 0xe */
| .uleb128 0xc
| .byte 0x92 /* DW_CFA_offset, column 0x12 */
| .uleb128 0xb
| .byte 0x9c /* DW_CFA_offset, column 0x1c */
| .uleb128 0xa
| .byte 0x9d /* DW_CFA_offset, column 0x1d */
| .uleb128 0x8
| .byte 0x9e /* DW_CFA_offset, column 0x1e */
| .uleb128 0x6
| .byte 0x9f /* DW_CFA_offset, column 0x1f */
| .uleb128 0x4
| .byte 0xa0 /* DW_CFA_offset, column 0x20 */
| .uleb128 0x2
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI2-datalabel .LCFI1
| .byte 0xd /* DW_CFA_def_cfa_register */
| .uleb128 0xe
| .align 2
| .LEFDE1:
|
| .LSFDE3:
| .4byte datalabel .LEFDE3-datalabel .LASFDE3 /* FDE Length */
| .LASFDE3:
| .4byte datalabel .LASFDE3-datalabel __FRAME_BEGIN__
| #ifdef PIC
| .4byte .LFB2-. /* FDE initial location */
| #else
| .4byte .LFB2 /* FDE initial location */
| #endif
| .4byte datalabel .LFE2-datalabel .LFB2 /* FDE address range */
| #ifdef PIC
| .uleb128 0x0 /* Augmentation size */
| #endif
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI3-datalabel .LFB2
| .byte 0xe /* DW_CFA_def_cfa_offset */
| .uleb128 0x88
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI4-datalabel .LCFI3
| .byte 0x8c /* DW_CFA_offset, column 0xc */
| .uleb128 0x21
| .byte 0x8e /* DW_CFA_offset, column 0xe */
| .uleb128 0x20
| .byte 0x92 /* DW_CFA_offset, column 0x12 */
| .uleb128 0x1f
| .byte 0x4 /* DW_CFA_advance_loc4 */
| .4byte datalabel .LCFI5-datalabel .LCFI4
| .byte 0xd /* DW_CFA_def_cfa_register */
| .uleb128 0xe
| .align 2
| .LEFDE3:
|
|
